Sample records for mei maximally exposed

  1. Chi Mei Optoelectronics CMO | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: ChinaInformationChestnut CapitalChi Mei

  2. OPTIMIZING TRANSMISSION FOR WIRELESS VIDEO STREAMING Mei-Hsuan Lu

    E-Print Network [OSTI]

    Chen, Tsuhan

    , wireless multimedia transmission has grown dramatically in recent years. The simplicity, flexibilityOPTIMIZING TRANSMISSION FOR WIRELESS VIDEO STREAMING Mei-Hsuan Lu A DISSERTATION Submitted to the Department of Electrical and Computer Engineering of Carnegie Mellon University in partial fulfillment

  3. Overview of Ocean Wave and Tidal Energy Lingchuan Mei

    E-Print Network [OSTI]

    Lavaei, Javad

    Overview of Ocean Wave and Tidal Energy Lingchuan Mei Department of Electrical Engineering Columbia with the climate change has led us to the exploration of new renewable energy in the past few decades. Oceans of this paper is to briefly overview the technology development of the ocean energy exploration, focusing on two

  4. HENDRIK VOS HET BLAD VAN PAPIER 15 mei 2006 N 443

    E-Print Network [OSTI]

    . * In het NTGent speelt van 16 tot 20 mei de voorstelling Voor het leven. Het stuk behandelt de pijnlijke stuk Tegen het leven door Moeders Tegen Tienermoeders, waarin Kathleen de baby aborteert, haar studie

  5. The Maximization Inventory

    E-Print Network [OSTI]

    Turner, Brandon M.; Rim, Hye B.; Betz, Nancy E.; Nygren, Thomas E.

    2012-01-01T23:59:59.000Z

    The Maximization Inventory Lai, L. (2010). Maximizingpp. 48–60 The Maximization Inventory Brandon M. Turner ? Hyepresent the Maximization Inventory, which consists of three

  6. Brief Communication 1595 mei-41 and bub1 block mitosis at two distinct steps in response

    E-Print Network [OSTI]

    Su, Tin Tin

    to synthesis in dupa3 mutants delays the entry into M16 via a Mei-41-dependent checkpoint.block mitotic exit both the entry into and The effect of dup mutations on entry into mitosis is in the exit from mitosis of entry into M16 is similar in dupa1 and heterozygous or wild- mately concurrent with heterozygous

  7. JULIA SETS AND WILD CANTOR SETS ALASTAIR FLETCHER AND JANG-MEI WU

    E-Print Network [OSTI]

    Fletcher, Alastair

    JULIA SETS AND WILD CANTOR SETS ALASTAIR FLETCHER AND JANG-MEI WU Abstract. There exist uniformly quasiregular maps f : R3 R3 whose Julia sets are wild Cantor sets. 1. Introduction The most direct is not tame is called wild. The first example of a wild Cantor set was Antoine's necklace [1

  8. Alessi, James G. Physicist PHD 1979 Univ. of Pittsburgh Bai, Mei Physicist PHD 1999 Indiana Univ.

    E-Print Network [OSTI]

    Homes, Christopher C.

    DEGREE YEAR Alessi, James G. Physicist PHD 1979 Univ. of Pittsburgh Bai, Mei Physicist PHD 1999 Indiana Univ. Beavis, Dana Physicist PHD 1980 Univ. of California Riverside Beebe, Edward N. Physicist PHD 1990 Cornell Univ. Beebe-Wang, Joanne J. Physicist PHD 1994 Stockholm Univ. Belomestnykh, Sergey A

  9. ESSAYWEDSTRIJD `VRIJHEID SPREEK JE AF' In aanloop naar de Nationale Viering van de Bevrijding op 5 mei 2013 in Utrecht organiseren het

    E-Print Network [OSTI]

    Utrecht, Universiteit

    5 mei 2013 in Utrecht organiseren het Nationaal Comité 4 en 5 mei, de afdeling Sociologie van de Universiteit Utrecht en het Algemeen Dagblad/Utrechts Nieuwsblad een essaywedstrijd over het jaarthema visie op vrijheid te geven. Het beste essay zal worden gepubliceerd in het Algemeen Dagblad/Utrechts

  10. Mei Bai, 2014 | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighand Retrievals from aRod Eggert ImageMeetings High EnergyMegan SlackMei

  11. A Measurement Study of GPU DVFS on Energy Conservation Xinxin Mei, Ling Sing Yung, Kaiyong Zhao, Xiaowen Chu

    E-Print Network [OSTI]

    Chu, Xiaowen

    A Measurement Study of GPU DVFS on Energy Conservation Xinxin Mei, Ling Sing Yung, Kaiyong Zhao}@comp.hkbu.edu.hk Abstract Energy conservation on computing systems has become an important research topic in recent years, there is a lack of study on the effectiveness of GPU DVFS on energy conservation. This paper presents a thorough

  12. Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu and Charles R. Dyer

    E-Print Network [OSTI]

    Zhu, Xiaojin "Jerry"

    Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu issue of air pollution in China and elsewhere in the world is to monitor it. While more physical prediction performance of our approach. I. INTRODUCTION Air pollution is a significant issue in China

  13. Protein folding dynamics in lattice model with physical movement Sema Kachalo, Hsiao-Mei Lu and Jie Liang

    E-Print Network [OSTI]

    Dai, Yang

    Protein folding dynamics in lattice model with physical movement S¨ema Kachalo, Hsiao-Mei Lu analysis of the kinetic energy landscape. I. INTRODUCTION The dynamics of protein folding has been studied exten- sively [1, 3­5]; A remarkable empirical observation is that protein folding rates are well

  14. Infrared Maximally Abelian Gauge

    E-Print Network [OSTI]

    Tereza Mendes; Attilio Cucchieri; Antonio Mihara

    2006-11-01T23:59:59.000Z

    The confinement scenario in Maximally Abelian gauge (MAG) is based on the concepts of Abelian dominance and of dual superconductivity. Recently, several groups pointed out the possible existence in MAG of ghost and gluon condensates with mass dimension 2, which in turn should influence the infrared behavior of ghost and gluon propagators. We present preliminary results for the first lattice numerical study of the ghost propagator and of ghost condensation for pure SU(2) theory in the MAG.

  15. Utility Maximization under Uncertainty

    E-Print Network [OSTI]

    Li, Jian

    2010-01-01T23:59:59.000Z

    Motivated by several search and optimization problems over uncertain datasets, we study the stochastic versions of a broad class of combinatorial problems where either the existences or the weights of the elements in the input dataset are uncertain. The class of problems that we study includes shortest paths, minimum weight spanning trees, and minimum weight matchings over probabilistic graphs; top-k queries over probabilistic datasets; and other combinatorial problems like knapsack. By noticing that the expected value is inadequate in capturing different types of risk-averse or risk-prone behaviors, we consider a more general objective which is to maximize the expected utility of the solution for some given utility function. For weight uncertainty model, we show that we can obtain a polynomial time approximation algorithm with additive error eps for any eps>0, if there is a pseudopolynomial time algorithm for the exact version of the problem. Our result generalizes several prior works on stochastic shortest ...

  16. DE DOCENTENPRIJS EN DE PRIJS DOCENTTALENT VAN DE UNIVERSITEIT UTRECHT Het College van Bestuur heeft op 26 mei 1994 de "Docentenprijs van de Universiteit Utrecht"

    E-Print Network [OSTI]

    Utrecht, Universiteit

    1 DE DOCENTENPRIJS EN DE PRIJS DOCENTTALENT VAN DE UNIVERSITEIT UTRECHT Het College van Bestuur heeft op 26 mei 1994 de "Docentenprijs van de Universiteit Utrecht" ingesteld. Het doel is docenten van de Universiteit Utrecht te stimuleren en te waarderen vanwege hun verdiensten voor het universitaire

  17. Journal of Coastal Research 22 6 15651572 West Palm Beach, Florida November 2006 Hypereutrophication in Ngau Mei Hoi Bay, Hong Kong

    E-Print Network [OSTI]

    Maine, University of

    (6), 1565­1572. West Palm Beach (Florida), ISSN 0749-0208. Investigations into eutrophication of Ngau Mei at the bottom layer were observed. This typical phenomenon of eutrophication resulted from nutrient enrichment and both wild and cultured stocks of animals. A primary cause of red tides is believed to be eutrophication

  18. Communiquer dans un monde de normes l 198 Boutaud J-J. (2005), La transparence, nouveau rgime visible , Transparence & communication, MEI, n 22, Paris, L'Harmattan,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    visible », Transparence & communication, MEI, n° 22, Paris, L'Harmattan, pp. 1-7. Debord G. (1967), La communication, Paris, L'Harmattan, pp. 207-225. Introduction La communication proposée s'inscrit dans la

  19. Phenomenology of Maximal and Near-Maximal Lepton Mixing

    E-Print Network [OSTI]

    M. C. Gonzalez-Garcia; C. Peña-Garay; Y. Nir; A. Yu. Smirnov

    2000-09-18T23:59:59.000Z

    We study the phenomenological consequences of maximal and near-maximal mixing of the electron neutrino with other ($x$=tau and/or muon) neutrinos. We describe the deviations from maximal mixing in terms of a parameter $\\epsilon\\equiv1-2\\sin^2\\theta_{ex}$ and quantify the present experimental status for $|\\epsilon|<0.3$. We find that the global analysis of solar neutrino data allows maximal mixing with confidence level better than 99% for $10^{-8}$ eV$^2\\lsim\\Delta m^2\\lsim2\\times10^{-7}$ eV$^2$. In the mass ranges $\\Delta m^2\\gsim 1.5\\times10^{-5}$ eV$^2$ and $4\\times10^{-10}$ eV$^2\\lsim\\Delta m^2\\lsim2\\times10^{-7}$ eV$^2$ the full interval $|\\epsilon|<0.3$ is allowed within 4$\\sigma$(99.995 % CL). We suggest ways to measure $\\epsilon$ in future experiments. The observable that is most sensitive to $\\epsilon$ is the rate [NC]/[CC] in combination with the Day-Night asymmetry in the SNO detector. With theoretical and statistical uncertainties, the expected accuracy after 5 years is $\\Delta \\epsilon\\sim 0.07$. We also discuss the effects of maximal and near-maximal $\

  20. What to Maximize If You Must

    E-Print Network [OSTI]

    Heifetz, Aviad; Shannon, Chris; Spiegel, Yossi

    2002-01-01T23:59:59.000Z

    to Maximize If You Must Aviad Heifetz Tel A v i v UniversityWhat to Maximize if You Must Aviad Heifetz^ Chris Shannon-''

  1. Distinguishability of maximally entangled states

    E-Print Network [OSTI]

    Sibasish Ghosh; Guruprasad Kar; Anirban Roy; Debasis Sarkar

    2003-11-17T23:59:59.000Z

    In $2 \\otimes 2$, more than 2 orthogonal Bell states with single copy can never be discriminated with certainty if only local operations and classical communication (LOCC) are allowed. More than $d$ orthogonal maximally entangled states in $d \\otimed d$, which are in cannonical form, used by Bennett et. al. [Phys. Rev. Lett. 70 (1993) 1895] can never be discriminated with certainty when a single copy of the states is provided. Interestingly we show that all orthogonal maximally entangled states, which are in cannonical form, can be discriminated with certainty if and only if two copies of each of the states are provided. The highly nontrivial problem of local discrimination of $d$ or less no. of pairwise orthogonal maximally entangled states in $d \\otimes d$ (in single copy case), which are in cannonical form, is also discussed.

  2. Elliptic Functions and Maximal Unitarity

    E-Print Network [OSTI]

    Mads Sogaard; Yang Zhang

    2014-12-17T23:59:59.000Z

    Scattering amplitudes at loop level can be reduced to a basis of linearly independent Feynman integrals. The integral coefficients are extracted from generalized unitarity cuts which define algebraic varieties. The topology of an algebraic variety characterizes the difficulty of applying maximal cuts. In this work, we analyze a novel class of integrals whose maximal cuts give rise to an algebraic variety with irrational irreducible components. As a phenomenologically relevant example we examine the two-loop planar double-box contribution with internal massive lines. We derive unique projectors for all four master integrals in terms of multivariate residues along with Weierstrass' elliptic functions. We also show how to generate the leading-topology part of otherwise infeasible integration-by-parts identities analytically from exact meromorphic differential forms.

  3. Maximally incompressible neutron star matter

    E-Print Network [OSTI]

    Timothy S. Olson

    2000-12-07T23:59:59.000Z

    Relativistic kinetic theory, based on the Grad method of moments as developed by Israel and Stewart, is used to model viscous and thermal dissipation in neutron star matter and determine an upper limit on the maximum mass of neutron stars. In the context of kinetic theory, the equation of state must satisfy a set of constraints in order for the equilibrium states of the fluid to be thermodynamically stable and for perturbations from equilibrium to propagate causally via hyperbolic equations. Application of these constraints to neutron star matter restricts the stiffness of the most incompressible equation of state compatible with causality to be softer than the maximally incompressible equation of state that results from requiring the adiabatic sound speed to not exceed the speed of light. Using three equations of state based on experimental nucleon-nucleon scattering data and properties of light nuclei up to twice normal nuclear energy density, and the kinetic theory maximally incompressible equation of state at higher density, an upper limit on the maximum mass of neutron stars averaging 2.64 solar masses is derived.

  4. Maximally coherent mixed states: Complementarity between maximal coherence and mixedness

    E-Print Network [OSTI]

    Uttam Singh; Manabendra Nath Bera; Himadri Shekhar Dhar; Arun Kumar Pati

    2015-03-21T23:59:59.000Z

    Quantum coherence is a key component of topical research on quantum resource theories and a primary facilitator for design and implementation of quantum technologies. However, the resourcefulness of quantum coherence is severely restricted by environmental noise, which is indicated by the loss of information in a quantum system, measured in terms of its purity. In this work, we derive the limits imposed by the mixedness of a quantum system on the amount of quantum coherence that it can possess. We obtain an analytical trade-off between the two quantities that upperbounds the maximum quantum coherence for fixed mixedness in a system. This gives rise to a class of quantum states, "maximally coherent mixed states", whose coherence cannot be increased further under any purity-preserving operation. For the above class of states, quantum coherence and mixedness satisfy a complementarity relation, which is crucial to understand the interplay between a resource and noise in open quantum systems.

  5. Dynamic Network Utility Maximization with Delivery Contracts

    E-Print Network [OSTI]

    Nikolaos Trichakis

    2007-09-30T23:59:59.000Z

    Sep 30, 2007 ... Dynamic Network Utility Maximization with Delivery Contracts. Nikolaos ... We briefly describe a heuristic, based on model predictive control, ...

  6. Maximizing Stochastic Monotone Submodular Functions Arash Asadpour

    E-Print Network [OSTI]

    Saberi, Amin

    Maximizing Stochastic Monotone Submodular Functions Arash Asadpour Hamid Nazerzadeh Amin Saberi, saberi}@stanford.edu Microsoft Research, Cambridge, MA. hamidnz@microsoft.com 1 #12;For the above

  7. On Test Sets for Nonlinear Integer Maximization

    E-Print Network [OSTI]

    2008-02-05T23:59:59.000Z

    On Test Sets for Nonlinear. Integer Maximization. July 2007; revised February 2008. Jon Leea, Shmuel Onnb, Robert Weismantelc a IBM T.J. Watson Research

  8. Sandia National Laboratories: maximize energy production

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

    maximize energy production Solar Glare Hazard Analysis Tool Available for Download On March 13, 2014, in Energy, News, News & Events, Photovoltaic, Renewable Energy, Solar, Solar...

  9. Maximizing Light Utilization Efficiency and Hydrogen Production...

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

    Progress Report UCB will minimize, or truncate, the chlorophyll antenna size in green algae to maximize photobiological solar conversion efficiency and H2-production....

  10. A Maximally Supersymmetric Kondo Model

    SciTech Connect (OSTI)

    Harrison, Sarah; Kachru, Shamit; Torroba, Gonzalo; /Stanford U., Phys. Dept. /SLAC

    2012-02-17T23:59:59.000Z

    We study the maximally supersymmetric Kondo model obtained by adding a fermionic impurity to N = 4 supersymmetric Yang-Mills theory. While the original Kondo problem describes a defect interacting with a free Fermi liquid of itinerant electrons, here the ambient theory is an interacting CFT, and this introduces qualitatively new features into the system. The model arises in string theory by considering the intersection of a stack of M D5-branes with a stack of N D3-branes, at a point in the D3 worldvolume. We analyze the theory holographically, and propose a dictionary between the Kondo problem and antisymmetric Wilson loops in N = 4 SYM. We perform an explicit calculation of the D5 fluctuations in the D3 geometry and determine the spectrum of defect operators. This establishes the stability of the Kondo fixed point together with its basic thermodynamic properties. Known supergravity solutions for Wilson loops allow us to go beyond the probe approximation: the D5s disappear and are replaced by three-form flux piercing a new topologically non-trivial S3 in the corrected geometry. This describes the Kondo model in terms of a geometric transition. A dual matrix model reflects the basic properties of the corrected gravity solution in its eigenvalue distribution.

  11. Brain MRI Classification using the Expectation Maximization

    E-Print Network [OSTI]

    Chen, Tsuhan

    Brain MRI Classification using the Expectation Maximization made a brain magnetic resonance image (MRI) classification algorithm that uses a twostage applied to a set of normal brain MR images for further testing. We accomplished a working

  12. Maximizing the Productive Uses of Electricity to Increase the...

    Open Energy Info (EERE)

    Maximizing the Productive Uses of Electricity to Increase the Impact of Rural Electrification Programs Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Maximizing the...

  13. Comparing maximal mean values on different scales

    E-Print Network [OSTI]

    Thomas Havenith; Sebastian Scholtes

    2015-01-20T23:59:59.000Z

    When computing the average speed of a car over different time periods from given GPS data, it is conventional wisdom that the maximal average speed over all time intervals of fixed length decreases if the interval length increases. However, this intuition is wrong. We investigate this phenomenon and make rigorous in which sense this intuition is still true.

  14. Live Streaming with Gossip Maxime Monod

    E-Print Network [OSTI]

    Guerraoui, Rachid

    Live Streaming with Gossip Maxime Monod June 30, 2010 #12;Regular TV: everything HD Live streaming A source produces multimedia content n viewers (n large) broadcasting ... ... ... IP TV, Web TV, P2P TV environment ·HEAP Heterogeneous environment ·LiFT Presence of freeriders Live Streaming with Gossip 25 #12

  15. Risk Aversion Asymptotics for Power Utility Maximization

    E-Print Network [OSTI]

    Nutz, Marcel

    Risk Aversion Asymptotics for Power Utility Maximization Marcel Nutz ETH Zurich, Department consider the economic problem of optimal consumption and in- vestment with power utility. We study consumption is obtained for general semimartingale mod- els while the convergence of the optimal trading

  16. 1 Mining Closed & Maximal Frequent Itemsets

    E-Print Network [OSTI]

    Zaki, Mohammed Javeed

    and maximal itemset mining prob- lem. We survey existing methods and focus on Charm and GenMax, both state- of that the methods have varying performance depending on the database characteristics (mainly the distribution CAREER Award IIS-0092978, DOE Early Career Award DE- FG02-02ER25538, NSF grant EIA-0103708 D R A F

  17. General Database Statistics Using Entropy Maximization

    E-Print Network [OSTI]

    Suciu, Dan

    (z) Estimate: q(y) :- R(x, y), S(y, z) Fig. 1. An example of a Statistical Program and a query, q whoseGeneral Database Statistics Using Entropy Maximization Raghav Kaushik1 , Christopher R´e2 , and Dan engines. The key object of our study is a statistical program, which is a set of pairs (v, d), where v

  18. Measurable Maximal Energy and Minimal Time Interval

    E-Print Network [OSTI]

    Eiman Abou El Dahab; Abdel Nasser Tawfik

    2014-01-14T23:59:59.000Z

    The possibility of finding the measurable maximal energy and the minimal time interval is discussed in different quantum aspects. It is found that the linear generalized uncertainty principle (GUP) approach gives a non-physical result. Based on large scale Schwarzshild solution, the quadratic GUP approach is utilized. The calculations are performed at the shortest distance, at which the general relativity is assumed to be a good approximation for the quantum gravity and at larger distances, as well. It is found that both maximal energy and minimal time have the order of the Planck time. Then, the uncertainties in both quantities are accordingly bounded. Some physical insights are addressed. Also, the implications on the physics of early Universe and on quantized mass are outlined. The results are related to the existence of finite cosmological constant and minimum mass (mass quanta).

  19. Absolute Maximal Entanglement and Quantum Secret Sharing

    E-Print Network [OSTI]

    Helwig, Wolfram; Riera, Arnau; Latorre, José I; Lo, Hoi-Kwong

    2012-01-01T23:59:59.000Z

    We study the existence of absolutely maximally entangled (AME) states in quantum mechanics and its applications to quantum information. AME states are characterized by being maximally entangled for all bipartitions of the system and exhibit genuine multipartite entanglement. With such states, we present a novel parallel teleportation protocol which teleports multiple quantum states between groups of senders and receivers. The notable features of this protocol are that (i) the partition into senders and receivers can be chosen after the state has been distributed, and (ii) one group has to perform joint quantum operations while the parties of the other group only have to act locally on their system. We also prove the equivalence between pure state quantum secret sharing schemes and AME states with an even number of parties. This equivalence implies the existence of AME states for an arbitrary number of parties based on known results about the existence of quantum secret sharing schemes.

  20. Interphase Cytogenetics of Workers Exposed to Benzene

    E-Print Network [OSTI]

    California at Berkeley, University of

    Interphase Cytogenetics of Workers Exposed to Benzene Luoping Zhang,1 Nathaniel Rothman,2 Yunxia has been used to demonstrate that the benzene metabolites hydroquinone and 1,2,4-benzenetriol induce FISH procedure to perform cytogenetic analyses on the blood cells of 43 workers exposed to benzene

  1. SUIVI MEDICAL DE SALARIES EXPOSES AU BERYLLIUM : Medical follow-up of beryllium -exposed workers

    E-Print Network [OSTI]

    Boyer, Edmond

    1 SUIVI MEDICAL DE SALARIES EXPOSES AU BERYLLIUM : Medical follow-up of beryllium - exposed workers-up of beryllium-exposed workers. Method: a medical follow-up of workers from a factory machining beryllium (Be preventive measures. Key words: beryllium, sensitisation, occupational exposure, prevention, Lymphocyte

  2. arXiv:physics/001003915Oct2000 Maximally Informative Statistics

    E-Print Network [OSTI]

    George, Edward I.

    arXiv:physics/001003915Oct2000 Maximally Informative Statistics Maximally Informative Statistics: egeorge@mail.utexas.edu Revision history: April 1996. Presented Bayesian Statistics 6, Valencia, 1998 of sufficiency, relevance, and representation. Maximally informative statistics are shown to minimize a Kullback

  3. Identifying Energy Systems that Maximize Cogeneration Savings

    E-Print Network [OSTI]

    Ahner, D. J.

    Ies whIch have Inherent constraInts or lImItatIons In meetIng these objectIves should be e11mlnated as opt10ns. Under such var1able condItIons Independent systems have slgnlf1cant advantage due to the1 r Inherent flexlb111ty 1n matchIng wIde var1at10...IDENTIFYING ENERGY SYSTEMS THAT MAXIMIZE COGENERATION SAVINGS DAVID J. AHNER Manager Systems Eng1neer1ng Schenectady. New York ABSTRACT Th1s paper d1scusses the max1m1z1ng of Reg10nal cogenerat10n Energy Sav1ngs ut1l1z1ng var10us...

  4. Maximizing Photosynthetic Efficiencies and Hydrogen Production in Microalga Cultures

    E-Print Network [OSTI]

    Polle, Jürgen

    1 Maximizing Photosynthetic Efficiencies and Hydrogen Production in Microalga Cultures Juergen) is expected to increase the photon use efficiency of microalgae in mass culture as it would minimize

  5. Rapid electron exchange between surface-exposed bacterial cytochromes...

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

    electron exchange between surface-exposed bacterial cytochromes and Fe(III) minerals. Rapid electron exchange between surface-exposed bacterial cytochromes and Fe(III) minerals....

  6. Exposing illegal timber Nov 10, 2003

    E-Print Network [OSTI]

    Exposing illegal timber trade Melvin Goh Nov 10, 2003 Email this article Printer friendly page Just example of illegal timber being smuggled into Sarawak and we are doing everything we can to stop it with assistance from other authorities. As to allegations that huge amount of illegal timber is being shipped

  7. arXiv:physics/0010039 Maximally Informative Statistics

    E-Print Network [OSTI]

    Wolf, David R.

    arXiv:physics/0010039 v1 15 Oct 2000 Maximally Informative Statistics Maximally Informative Statistics David R. Wolf PO 8308, Austin, TX 78713-8308, USA, E-mail: drwolf@realtime.net Dr. Wolf: egeorge@mail.utexas.edu Revision history: April 1996. Presented Bayesian Statistics 6, Valencia, 1998

  8. EMSL Strategic Plan to Maximize Scientific Impact of

    E-Print Network [OSTI]

    ) is a new facility built to support scientific research that will enable cost-effective solutions to the U, and maximize the scientific benefit of that investment, the Performance Evaluation Management Plan (PEMP to maximize the benefit of the investment, and Target Outreach to cultivate new users and ultimately

  9. Donald Mei | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic Plan Department ofNotices | Department of Energy 29 / Wednesday,

  10. Carnot Cycle at Finite Power: Attainability of Maximal Efficiency

    E-Print Network [OSTI]

    Armen E. Allahverdyan; Karen V. Hovhannisyan; Alexey V. Melkikh; Sasun G. Gevorkian

    2013-12-12T23:59:59.000Z

    We want to understand whether and to which extent the maximal (Carnot) efficiency for heat engines can be reached at a finite power. To this end we generalize the Carnot cycle so that it is not restricted to slow processes. We show that for realistic (i.e. not purposefully-designed) engine-bath interactions, the work-optimal engine performing the generalized cycle close to the maximal efficiency has a long cycle time and hence vanishing power. This aspect is shown to relate to the theory of computational complexity. A physical manifestation of the same effect is the Levinthal's paradox in the protein folding problem. The resolution of this paradox for realistic proteins allows to construct engines that can extract at a finite power 40% of the maximally possible work reaching 90% of the maximal efficiency. For purposefully designed engine-bath interactions, the Carnot efficiency is achievable at a large power.

  11. Chapter 5 The Hardy–Littlewood Maximal Function

    E-Print Network [OSTI]

    2007-03-17T23:59:59.000Z

    5.1. HARDY–LITTLEWOOD MAXIMAL FUNCTION. 65. 5.1 The Lp–inequalities. Let us denote by L1 loc(Rn) the space of measurable functions on Rn which are.

  12. On the generation of cutting planes which maximize the bound ...

    E-Print Network [OSTI]

    2014-09-23T23:59:59.000Z

    expect, by generating dual-steepest-edge cuts rather than maximally ..... by a factor of 2 (with both STD and COORD being more than 50% faster than BOC-1).

  13. On Profit-Maximizing Envy-free Pricing Venkatesan Guruswami

    E-Print Network [OSTI]

    Kempe, David

    fairness criterion requiring that consumers are maximally happy with the outcome they receive given of Washington, Seattle, WA 98195. Email: {venkat,karlin}@cs.washington.edu. Microsoft Research Silicon Valley

  14. Radionuclide air emissions report for the Hanford site, Calendar year 1994

    SciTech Connect (OSTI)

    Gleckler, B.P.; Diediker, L.P. [Westinghouse Hanford Co., Richland, WA (United States); Jette, S.J.; Rhoads, K.; Soldat, S.K. [Pacific Northwest Lab., Richland, WA (United States)

    1995-06-01T23:59:59.000Z

    This report documents radionuclide air emissions from the Hanford Site in 1994, and the resulting effective dose equivalent to the maximally exposed member of the public, referred to as the ``MEI.`` The report has been prepared and will be submitted in accordance with reporting requirements in the Code of Federal Regulations, title 40, Protection of the Environment, Part 61, ``National Emissions Standards for Hazardous Air Pollutants,`` Subpart H, ``National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities.``

  15. EMP Attachment 3 DOE-SC PNNL Site Dose Assessment Guidance

    SciTech Connect (OSTI)

    Snyder, Sandra F.

    2011-12-21T23:59:59.000Z

    This Dose Assessment Guidance (DAG) describes methods to use to determine the Maximally-Exposed Individual (MEI) location and to estimate dose impact to that individual under the U.S. Department of Energy Office of Science (DOE-SC) Pacific Northwest National Laboratory (PNNL) Site Environmental Monitoring Plan (EMP). This guidance applies to public dose from radioactive material releases to the air from PNNL Site operations. This document is an attachment to the Pacific Northwest National Laboratory (PNNL) Environmental Monitoring Plan (EMP) and describes dose assessment guidance for radiological air emissions. The impact of radiological air emissions from the U.S. Department of Energy Office of Science (DOE-SC) PNNL Site is indicated by dose estimates to a maximally exposed member of the public, referred to as the maximally exposed individual (MEI). Reporting requirements associated with dose to members of the public from radiological air emissions are in 40 CFR Part 61.94, WAC 246-247-080, and DOE Order 458.1. The DOE Order and state standards for dose from radioactive air emissions are consistent with U.S. Environmental Protection Agency (EPA) dose standards in 40 CFR 61.92 (i.e., 10 mrem/yr to a MEI). Despite the fact that the current Contract Requirements Document (CRD) for the DOE-SC PNNL Site operations does not include the requirement to meet DOE CRD 458.1, paragraph 2.b, public dose limits, the DOE dose limits would be met when EPA limits are met.

  16. Maximizing the divergence from a hierarchical model of quantum states

    E-Print Network [OSTI]

    Stephan Weis; Andreas Knauf; Nihat Ay; Ming-Jing Zhao

    2015-02-12T23:59:59.000Z

    We study many-party correlations quantified in terms of the Umegaki relative entropy (divergence) from a Gibbs family known as a hierarchical model. We derive these quantities from the maximum-entropy principle which was used earlier to define the closely related irreducible correlation. We point out differences between quantum states and probability vectors which exist in hierarchical models, in the divergence from a hierarchical model and in local maximizers of this divergence. The differences are, respectively, missing factorization, discontinuity and reduction of uncertainty. We discuss global maximizers of the mutual information of separable qubit states.

  17. Optimal Demand Response Based on Utility Maximization in Power Networks

    E-Print Network [OSTI]

    Low, Steven H.

    Optimal Demand Response Based on Utility Maximization in Power Networks Na Li, Lijun Chen different appliances including PHEVs and batteries and propose a demand response approach based on utility. The utility company can thus use dynamic pricing to coordinate demand responses to the benefit of the overall

  18. Adaptive Power Control with SIR Maximizing Multiuser Detectors \\Lambda

    E-Print Network [OSTI]

    Ulukus, Sennur

    Adaptive Power Control with SIR Maximizing Multiuser Detectors \\Lambda Sennur Ulukus Roy D. Yates Power control algorithms assume that the receiver struc­ ture is fixed and iteratively update and propose an iterative and distributed power control algorithm which iteratively updates the transmitter

  19. Maximizing Throughput in Wireless Networks with Finite Internal Buffers

    E-Print Network [OSTI]

    Chang, Cheng-Shang

    Maximizing Throughput in Wireless Networks with Finite Internal Buffers Ching-Min Lien, Cheng of a discrete-time wireless network, where only certain sets of links can transmit simultaneously. It is well of the configuration vectors determines the capacity region of the wireless network. In the literature, packet

  20. Dynamic Power Allocation For Maximizing Throughput in Energy Harvesting

    E-Print Network [OSTI]

    Vaze, Rahul

    1 Dynamic Power Allocation For Maximizing Throughput in Energy Harvesting Communication System general case of arbitrarily varying energy arrivals is considered, where neither the future energy arrival strategy that invests available energy uniformly over all remaining slots until the next energy arrival

  1. EMSL Strategic Plan to Maximize Scientific Impact of

    E-Print Network [OSTI]

    alternative energy sources. BER has a long history of determining the biological and environmental impact of Biological and Environmental Research (BER) to foster high-impact science for the benefit of BER's scienceEMSL Strategic Plan to Maximize Scientific Impact of the Quiet Wing PEMP Notable Outcomes Goal 2

  2. Maximizing Service Reliability in Distributed Computing Systems with Random Node

    E-Print Network [OSTI]

    Hayat, Majeed M.

    Maximizing Service Reliability in Distributed Computing Systems with Random Node Failures: Theory Member, IEEE Abstract--In distributed computing systems (DCSs) where server nodes can fail permanently with nonzero probability, the system performance can be assessed by means of the service reliability, defined

  3. Maximizing Thermal Efficiency and Optimizing Energy Management (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01T23:59:59.000Z

    Researchers at the Thermal Test Facility (TTF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colorado, are addressing maximizing thermal efficiency and optimizing energy management through analysis of efficient heating, ventilating, and air conditioning (HVAC) strategies, automated home energy management (AHEM), and energy storage systems.

  4. Efficiency and maximal CP-asymmetry of scalar triplet leptogenesis

    E-Print Network [OSTI]

    Thomas Hambye; Martti Raidal; Alessandro Strumia

    2006-05-16T23:59:59.000Z

    We study thermal leptogenesis induced by decays of a scalar SU(2)_L triplet. Despite the presence of gauge interactions, unexpected features of the Boltzmann equations make the efficiency close to maximal in most of the parameter space. We derive the maximal CP asymmetry in triplet decays, assuming that it is generated by heavier sources of neutrino masses: in this case successful leptogenesis needs a triplet heavier than 2.8 10^{10} GeV and does not further restrict its couplings, allowing detectable mu --> e gamma, tau --> mu gamma rates in the context of supersymmetric models. Triplet masses down to the TeV scale are viable in presence of extra sources of CP-violation.

  5. Maximizing Cloud Providers Revenues via Energy Aware Allocation Policies

    E-Print Network [OSTI]

    Mazzucco, Michele; Deters, Ralph

    2011-01-01T23:59:59.000Z

    Cloud providers, like Amazon, offer their data centers' computational and storage capacities for lease to paying customers. High electricity consumption, associated with running a data center, not only reflects on its carbon footprint, but also increases the costs of running the data center itself. This paper addresses the problem of maximizing the revenues of Cloud providers by trimming down their electricity costs. As a solution allocation policies which are based on the dynamic powering servers on and off are introduced and evaluated. The policies aim at satisfying the conflicting goals of maximizing the users' experience while minimizing the amount of consumed electricity. The results of numerical experiments and simulations are described, showing that the proposed scheme performs well under different traffic conditions.

  6. Foliar Lead Uptake by Lettuce Exposed to Atmospheric Fallouts

    E-Print Network [OSTI]

    Mailhes, Corinne

    Foliar Lead Uptake by Lettuce Exposed to Atmospheric Fallouts G A ¨E L L E U Z U , S O P H I E S O gardens near industrial plants. The mechanisms of foliar uptake of lead by lettuce (Lactuca sativa) exposed to the atmospheric fallouts of a lead-recycling plant were studied. After43daysofexposure

  7. BIOMARKERS IN THE MOLECULAR EPIDEMIOLOGY OF BENZENE-EXPOSED WORKERS

    E-Print Network [OSTI]

    California at Berkeley, University of

    BIOMARKERS IN THE MOLECULAR EPIDEMIOLOGY OF BENZENE-EXPOSED WORKERS Martyn T. Smith Division from workers exposed to high levels of benzene. The goal of these studies is to develop and validate (1) biomarkers of exposure to benzene, such as albumin or hemoglobin adducts; (2) molecular markers

  8. Maximally Helicity Violating Disk Amplitudes, Twistors and Transcendental Integrals

    E-Print Network [OSTI]

    Stephan Stieberger; Tomasz R. Taylor

    2012-04-17T23:59:59.000Z

    We obtain simple expressions for tree-level maximally helicity violating amplitudes of N gauge bosons from disk world-sheets of open superstrings. The amplitudes are written in terms of (N-3)! hypergeometric integrals depending on kinematic parameters, weighted by certain kinematic factors. The integrals are transcendental in a strict sense defined in this work. The respective kinematic factors can be succinctly written in terms of "dual" momentum twistors. The amplitudes are computed by using the prescription proposed by Berkovits and Maldacena.

  9. Spectrum of quenched twisted mass lattice QCD at maximal twist

    SciTech Connect (OSTI)

    Abdel-Rehim, Abdou M.; Lewis, Randy; Woloshyn, R.M. [Department of Physics, University of Regina, Regina, SK, S4S 0A2 (Canada); TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3 (Canada)

    2005-05-01T23:59:59.000Z

    Hadron masses are computed from quenched twisted mass lattice QCD for a degenerate doublet of up and down quarks with the twist angle set to {pi}/2, since this maximally-twisted theory is expected to be free of linear discretization errors. Two separate definitions of the twist angle are used, and the hadron masses for these two cases are compared. The flavor breaking, that can arise due to twisting, is discussed in the context of mass splittings within the {delta}(1232) multiplet.

  10. Dispatching Demand ResponseTransit Service: Maximizing Productivity and Service Quality Guidebook

    E-Print Network [OSTI]

    Dispatching Demand ResponseTransit Service: Maximizing Productivity and Service Quality Guidebook and Subtitle Dispatching Demand Response Transit Service Maximizing Productivity and Service Quality Guidebook while maintaining service quality. Researchers collected data from 42 demand response rural and small

  11. Maximizing Energy Savings Reliability in BC Hydro Industrial Demand-side Management Programs

    E-Print Network [OSTI]

    Victoria, University of

    Maximizing Energy Savings Reliability in BC Hydro Industrial Demand-side Management Programs Supervisory Committee Maximizing Energy Savings Reliability in BC Hydro Industrial Demand-side Management of Environmental Studies) Departmental Member For energy utilities faced with expanded jurisdictional energy

  12. Power Maximization in Wave-Energy Converters Using Sampled -Data Extremum Seeking /

    E-Print Network [OSTI]

    Chen, Tianjia

    2013-01-01T23:59:59.000Z

    power maximization problem while ensuring the system stability.of power extraction and ensures the stability of the system.power maximization problem while ensuring the stability of the system.

  13. Outdoor polymeric insulators long-term exposed to HVDC

    SciTech Connect (OSTI)

    Soerqvist, T.; Vlastos, A.E. [Chalmers Univ. of Technology, Gothenburg (Sweden)] [Chalmers Univ. of Technology, Gothenburg (Sweden)

    1997-04-01T23:59:59.000Z

    Field experience from outdoor polymeric insulators exposed to HVDC under natural contamination conditions is presented. This paper summarizes the peak leakage current statistics, the hydrophobicity and the surface material conditions studied by electron spectroscopy for chemical analysis (ESCA) and attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy. The results show a strong interrelation between the surface conditions and the performance with respect to leakage currents. Moreover, the results show that the surface conditions and the performance of the insulators exposed to HVDC are rather similar to those of the insulators exposed to HVAC.

  14. Maximal air bubble entrainment at liquid drop impact

    E-Print Network [OSTI]

    Bouwhuis, Wilco; Tran, Tuan; Keij, Diederik L; Winkels, Koen G; Peters, Ivo R; van der Meer, Devaraj; Sun, Chao; Snoeijer, Jacco H; Lohse, Detlef

    2012-01-01T23:59:59.000Z

    At impact of a liquid drop on a solid surface an air bubble can be entrapped. Here we show that two competing effects minimize the (relative) size of this entrained air bubble: For large drop impact velocity and large droplets the inertia of the liquid flattens the entrained bubble, whereas for small impact velocity and small droplets capillary forces minimize the entrained bubble. However, we demonstrate experimentally, theoretically, and numerically that in between there is an optimum, leading to maximal air bubble entrapment. Our results have a strong bearing on various applications in printing technology, microelectronics, immersion lithography, diagnostics, or agriculture.

  15. Amplification of maximally-path-entangled number states

    SciTech Connect (OSTI)

    Agarwal, G. S.; Rai, Amit [Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (United States); Chaturvedi, S. [School of Physics, University of Hyderabad, Hyderabad 500046 (India)

    2010-04-15T23:59:59.000Z

    We examine the behavior of a non-Gaussian state like the maximally path-entangled number state commonly known as a N00N state under phase-insensitive amplification. We derive an analytical result for the density matrix of the N00N state for arbitrary gain of the amplifier. We consider cases of both symmetric and antisymmetric amplification of the two modes of the N00N state. We quantitatively evaluate the loss of entanglement by the amplifier in terms of the logarithmic negativity parameter. We find that N00N states are more robust than their Gaussian counterparts.

  16. Method for maximizing shale oil recovery from an underground formation

    DOE Patents [OSTI]

    Sisemore, Clyde J. (Livermore, CA)

    1980-01-01T23:59:59.000Z

    A method for maximizing shale oil recovery from an underground oil shale formation which has previously been processed by in situ retorting such that there is provided in the formation a column of substantially intact oil shale intervening between adjacent spent retorts, which method includes the steps of back filling the spent retorts with an aqueous slurry of spent shale. The slurry is permitted to harden into a cement-like substance which stabilizes the spent retorts. Shale oil is then recovered from the intervening column of intact oil shale by retorting the column in situ, the stabilized spent retorts providing support for the newly developed retorts.

  17. a549 cells exposed: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  18. actinobacillus pleuropneumoniae exposed: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  19. arrhiza lemnaceae exposed: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  20. acaricide exposed scabies: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  1. affected zones exposed: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  2. atrial myocytes exposed: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  3. AIR AND RADON PATHWAY MODELING FOR THE F AREA TANK FARM

    SciTech Connect (OSTI)

    Dixon, K.; Phifer, M.

    2010-07-30T23:59:59.000Z

    An air and radon pathways analysis was conducted for the F-Area Tank Farm (FTF) to estimate the flux of volatile radionuclides and radon at the ground surface due to residual waste remaining in the tanks following closure. This analysis was used as the basis to estimate the dose to the maximally exposed individual (MEI) for the air pathway per Curie (Ci) of each radionuclide remaining in the combined FTF waste tanks. For the air pathway analysis, several gaseous radionuclides were considered. These included carbon-14 (C-14), chlorine-36 (Cl-36), iodine-129 (I-129), selenium-79 (Se-79), antimony-125 (Sb-125), tin-126 (Sn-126), tritium (H-3), and technetium-99 (Tc-99). The dose to the MEI was estimated at the SRS Boundary during the 100 year institutional control period. For the 10,000 year post closure compliance period, the dose to the MEI was estimated at the 100 m compliance point. Additionally, the dose to the MEI was estimated at a seepage outcrop located 1600 m from the facility. For the radon pathway analysis, five parent radionuclides and their progeny were analyzed. These parent radionuclides included uranium-238 (U-238), plutonium-238 (Pu-238), uranium-234 (U-234), thorium-230 (Th-230), and radium-226 (Ra-226). The peak flux of radon-222 due to each parent radionuclide was estimated for the simulation period of 10,100 years.

  4. An Expectation-Maximization Method for Calibrating Synchronous Machine Models

    SciTech Connect (OSTI)

    Meng, Da; Zhou, Ning; Lu, Shuai; Lin, Guang

    2013-07-21T23:59:59.000Z

    The accuracy of a power system dynamic model is essential to its secure and efficient operation. Lower confidence in model accuracy usually leads to conservative operation and lowers asset usage. To improve model accuracy, this paper proposes an expectation-maximization (EM) method to calibrate the synchronous machine model using phasor measurement unit (PMU) data. First, an extended Kalman filter (EKF) is applied to estimate the dynamic states using measurement data. Then, the parameters are calculated based on the estimated states using maximum likelihood estimation (MLE) method. The EM method iterates over the preceding two steps to improve estimation accuracy. The proposed EM method’s performance is evaluated using a single-machine infinite bus system and compared with a method where both state and parameters are estimated using an EKF method. Sensitivity studies of the parameter calibration using EM method are also presented to show the robustness of the proposed method for different levels of measurement noise and initial parameter uncertainty.

  5. Maximal Sensitive Dependence and the Optimal Path to Epidemic Extinction

    E-Print Network [OSTI]

    Forgoston, Eric; Shaw, Leah B; Schwartz, Ira B

    2010-01-01T23:59:59.000Z

    Extinction of an epidemic or a species is a rare event that occurs due to a large, rare stochastic fluctuation. Although the extinction process is dynamically unstable, it follows an optimal path that maximizes the probability of extinction. We show that the optimal path is also directly related to the finite-time Lyapunov exponents of the underlying dynamical system in that the optimal path displays maximum sensitivity to initial conditions. We consider several stochastic epidemic models, and examine the extinction process in a dynamical systems framework. Using the dynamics of the finite-time Lyapunov exponents as a constructive tool, we demonstrate that the dynamical systems viewpoint of extinction evolves naturally toward the optimal path.

  6. M-Theory and Maximally Supersymmetric Gauge Theories

    E-Print Network [OSTI]

    Neil Lambert

    2012-05-21T23:59:59.000Z

    In this informal review for non-specalists we discuss the construction of maximally supersymmetric gauge theories that arise on the worldvolumes branes in String Theory and M-Theory. Particular focus is made on the relatively recent construction of M2-brane worldvolume theories. In a formal sense, the existence of these quantum field theories can be viewed as predictions of M-Theory. Their construction is therefore a reinforcement of the ideas underlying String Theory and M-Theory. We also briefly discuss the six-dimensional conformal field theory that is expected to arise on M5-branes. The construction of this theory is not only an important open problem for M-Theory but also a significant challenge to our current understanding of quantum field theory more generally.

  7. Pantex Plant Cell 12-44-1 tritium release: Re-assessment of environmental doses for 1990 to 1992

    SciTech Connect (OSTI)

    Snyder, S.F.; Hwang, S.T.

    1994-03-01T23:59:59.000Z

    A release of tritium gas occurred within Cell 12-44-1 at the Pantex Plant on May 17, 1989. The release was the result of a nuclear component containment failure. This document summarizes past assessments and characterization of the release. From 1990 to 1992, the average annual dose to the offsite maximally exposed individual (MEI), re-assessed using updated methods and data, ranged from 9E-6 to 2E-4 mrem/y. Doses at this level are well below the regulatory dose limit and support the discontinuation of the distinct calculation of the MEI doses from the cell`s tritium releases in future Pantex Annual Site Environmental Reports. Additional information provides guidance for the evaluation of similar releases in the future. Improved Environmental Protection Department sampling plans and assessment goals will increase the value of the data collected during future incidents.

  8. Control of high power pulse extracted from the maximally compressed pulse in a nonlinear optical fiber

    E-Print Network [OSTI]

    Yang, Guangye; Jia, Suotang; Mihalache, Dumitru

    2013-01-01T23:59:59.000Z

    We address the possibility to control high power pulses extracted from the maximally compressed pulse in a nonlinear optical fiber by adjusting the initial excitation parameters. The numerical results show that the power, location and splitting order number of the maximally compressed pulse and the transmission features of high power pulses extracted from the maximally compressed pulse can be manipulated through adjusting the modulation amplitude, width, and phase of the initial Gaussian-type perturbation pulse on a continuous wave background.

  9. Universal Membrane Classification Scheme: Maximizing the Return on High Temperature PEM Membrane Research

    Broader source: Energy.gov [DOE]

    This presentation on maximizing the return of high temperature PEM membrane research was given at the High Temperature Membrane Working Group Meeting in May 2007.

  10. Power Maximization in Wave-Energy Converters Using Sampled -Data Extremum Seeking /

    E-Print Network [OSTI]

    Chen, Tianjia

    2013-01-01T23:59:59.000Z

    Power Maximization in Wave-Energy Converters Using Sampled-design optimization of wave energy converters con- sistingN. Sahinkaya. A review of wave energy converter technology.

  11. On ProfitMaximizing Envyfree Pricing Venkatesan Guruswami # Jason D. Hartline + Anna R. Karlin # David Kempe #

    E-Print Network [OSTI]

    Bustamante, Fabián E.

    fairness criterion requiring that consumers are maximally happy with the outcome they receive given Silicon Valley, Mountain View, CA 94043. Email: {hartline,mcsherry}@microsoft.com. # Computer Science

  12. A COUNTEREXAMPLE TO THE MAXIMALITY OF TORIC VARIETIES

    E-Print Network [OSTI]

    Valerie Hower

    2006-01-01T23:59:59.000Z

    ABSTRACT. We present a counterexample to the conjecture of Bihan, Franz, McCrory, and van Hamel concerning the maximality of toric varieties. There exists a six dimensional projective toric variety X with the sum of the mod 2 Betti numbers of X(R) strictly less than the sum of the mod 2 Betti numbers of X(C). Let X = X(C) be a complex algebraic variety defined by equations with real coefficients. Complex conjugation ?: X ? X acts on X, and the fixed points X? are the real points of X, denoted X(R). It is of interest to try to understand the relationship between the topology of X(C) and that of X(R). If one looks at the mod 2 Betti numbers, the Smith-Thom inequality states bi(X(R)) ? ? bj(X(C)). i We say X is maximal or an M-variety when equality is achieved. Toric varieties are defined by equations with integral coefficients. See Fulton [Ful] for background on toric varieties. Thus, if X is a toric variety, we may consider X(R) the real points of X. In [Bih], Bihan et al. define a spectral sequence G r p,q that converges to the ordinary Z2 homology of X(R) when X is a projective toric variety. Here we use different notation and indexing. We write this spectral sequence as E r p,q, where G r p,q = E r p+q,?p. For each p and q we have (1) E 1 p,q ? = E 2 p,q j where E r p,q is the Z2 Leray-Serre spectral sequence for the moment map of X(C). The spectral sequence E r p,q converges to the ordinary Z2 homology of X(C). Bihan et al. conjecture that every toric variety is an M-variety. Their conjecture is based on (1), numerous examples, and the fact that every nonsingular toric variety is an M-variety. In this note, we present a counterexample to this conjecture. The author would like to thank Matthias Franz and Clint McCrory for ongoing discussions and emails. Theorem. There exists a six dimensional projective toric variety which is not an

  13. Energy-Exposed Instruction Set Architectures Krste Asanovic

    E-Print Network [OSTI]

    Asanovic, Krste

    applications with complex control flow as we believe this type of code will become the energy bottleneckEnergy-Exposed Instruction Set Architectures Krste Asanovi´c MIT Laboratory for Computer Science alternate ways to perform the same task unless it will increase perfor- mance significantly. Implementations

  14. Author's personal copy Reactivity of lithium exposed graphite surface

    E-Print Network [OSTI]

    Harilal, S. S.

    on the surface [18]. Hence the effect of lithium on plasma­wall interactions is expected to dependAuthor's personal copy Reactivity of lithium exposed graphite surface S.S. Harilal a, *, J in fusion devices [1­5]. For example, wall conditioning with thin lithium layers gives rise to low hydrogen

  15. analogue materials exposed: Topics by E-print Network

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

    analogue materials exposed 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 Graft Copolymers of Maleic...

  16. A pill to treat people exposed to radioactive materials

    ScienceCinema (OSTI)

    Abergel, Rebecca

    2014-06-24T23:59:59.000Z

    Berkeley Lab's Rebecca Abergel discusses "A pill to treat people exposed to radioactive materials" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas. Go here to watch the entire event with all 8 speakers:

  17. INTRODUCTION Coastal ecosystems have been exposed to serious pollution for

    E-Print Network [OSTI]

    Alvarez, Nadir

    4010 INTRODUCTION Coastal ecosystems have been exposed to serious pollution for several decades because of increased human activity. Modern agriculture is a major contributor to coastal pollution levels of pollution and potentially harming marine organisms (Banerjee et al., 1996). Some organisms

  18. A pill to treat people exposed to radioactive materials

    SciTech Connect (OSTI)

    Abergel, Rebecca

    2013-10-31T23:59:59.000Z

    Berkeley Lab's Rebecca Abergel discusses "A pill to treat people exposed to radioactive materials" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas. Go here to watch the entire event with all 8 speakers:

  19. Research Article Decontamination of Surfaces Exposed to Carbon-Based

    E-Print Network [OSTI]

    Vaziri, Ashkan

    Research Article Decontamination of Surfaces Exposed to Carbon-Based Nanotubes and Nanomaterials nanomaterial-specific decontamination guidelines. In this paper, we propose and investigate a potential method for surface decontamination of carbon-based nanomaterials using solvent cleaning and wipes. The results show

  20. NAC 07 mei 2008 KNMI Rob Groenland

    E-Print Network [OSTI]

    Haak, Hein

    , Rotsgebergte (Canada), Schotland en Ierland. Stormchaser USA Runner Seven Hills walk Rob Groenland. Vorticiteit is een microscopische maat en kan in elk punt een andere waarde hebben; het is een

  1. MEIS: Molecular Environmental & Interface Science

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, In this3, BPA earnedUnder

  2. Yan Mei Wang | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhatY-12 recognized for ...BER/NERSCYakama Power

  3. Role of UCG in maximizing coal utilization: site specific study

    SciTech Connect (OSTI)

    Linn, J. K.; Love, S. L.

    1980-01-01T23:59:59.000Z

    The Department of Energy is sponsoring a project to develop a planning scheme for improving the utilization of coal deposits. This prototype study, called Total Economic Coal Utilization (TECU), is being applied to specific coal reserves within the Centralia-Chehalis District of Washington State. A significant aspect of the study is to determine the potential role for in situ gasification in maximizing the energy recovery and use. The results obtained indicate that UCG could be used to realize a sizeable increase in the amount of energy that can be economically recovered from the District. Since UCG technology has not reached the commercialization stage, some significant assumptions had to be made for this study. These are that the in situ process will work reliably and that product gas cleanup will proceed without major problems. However, if these conditions are met, this assessment indicates that in situ coal gasification could increase the extractable energy from Washington's Centralia-Chehalis coal deposits by a substantial amount and that this additional energy could be accessed at reasonable cost.

  4. Parton distributions based on a maximally consistent dataset

    E-Print Network [OSTI]

    Juan Rojo

    2014-09-10T23:59:59.000Z

    The choice of data that enters a global QCD analysis can have a substantial impact on the resulting parton distributions and their predictions for collider observables. One of the main reasons for this has to do with the possible presence of inconsistencies, either internal within an experiment or external between different experiments. In order to assess the robustness of the global fit, different definitions of a conservative PDF set, that is, a PDF set based on a maximally consistent dataset, have been introduced. However, these approaches are typically affected by theory biases in the selection of the dataset. In this contribution, after a brief overview of recent NNPDF developments, we propose a new, fully objective, definition of a conservative PDF set, based on the Bayesian reweighting approach. Using the new NNPDF3.0 framework, we produce various conservative sets, which turn out to be mutually in agreement within the respective PDF uncertainties, as well as with the global fit. We explore some of their implications for LHC phenomenology, finding also good consistency with the global fit result. These results provide a non-trivial validation test of the new NNPDF3.0 fitting methodology, and indicate that possible inconsistencies in the fitted dataset do not affect substantially the global fit PDFs.

  5. Proposal for study of $\\pi^{-}$ nucleur collisions in nuclear emulsion exposed in a pulsed magnetic field

    E-Print Network [OSTI]

    CERN. Geneva. SPS Experiments Committee

    1980-01-01T23:59:59.000Z

    Proposal for study of $\\pi^{-}$ nucleur collisions in nuclear emulsion exposed in a pulsed magnetic field

  6. Weighted Sum Rate Maximization of Correlated MISO Broadcast Channels under Linear Precoding

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Weighted Sum Rate Maximization of Correlated MISO Broadcast Channels under Linear Precoding algorithm proposed by Christensen et al. in large correlated MISO broadcast channels. We propose a novel maximization. I. INTRODUCTION WE consider the multiple-input single-output (MISO) broadcast channel (BC

  7. Weighted Sum Rate Maximization in the Underlay Cognitive MISO Interference Channel

    E-Print Network [OSTI]

    Gesbert, David

    Weighted Sum Rate Maximization in the Underlay Cognitive MISO Interference Channel Laurent Gallo) maximization for a K-user Multiple-Input Single-Output (MISO) cognitive Interference Channel (IFC) with linear studied in a non-cognitive scenario for the MISO inter- ference channel (IFC) in [3], where a distributed

  8. The distribution of the maximal difference between Brownian bridge and its concave majorant

    E-Print Network [OSTI]

    Balabdaoui, Fadoua

    2009-01-01T23:59:59.000Z

    We provide a representation of the maximal difference between a standard Brownian bridge and its concave majorant on the unit interval, from which we deduce expressions for the distribution and density functions and moments of this difference. This maximal difference has an application in nonparametric statistics where it arises in testing monotonicity of a density or regression curve.

  9. Profit Maximization of a Power Plant Martin Kragelund, John Leth, Rafal Wisniewski, and Ulf Jonsson

    E-Print Network [OSTI]

    Hansen, René Rydhof

    consisting of wind energy and hydropower. Also in this work, the demand for balancing powerProfit Maximization of a Power Plant Martin Kragelund, John Leth, Rafal Wisniewski, and Ulf J¨onsson Abstract-- This paper addresses the problem of profit maximization of a power plant by utilizing three

  10. The Impact of Stochastic Noisy Feedback on Distributed Network Utility Maximization

    E-Print Network [OSTI]

    Reisslein, Martin

    The Impact of Stochastic Noisy Feedback on Distributed Network Utility Maximization Junshan Zhang of distributed network utility maximization (NUM) algorithms hinges heavily on information feedback through, that the iterates generated by distributed P-D algorithms converge with probability one to the optimal point, under

  11. Running head: CONCRETE PROSOCIAL GOALS MAXIMIZE HAPPINESS 1 Getting the Most out of Giving

    E-Print Network [OSTI]

    Bogyo, Matthew

    Running head: CONCRETE PROSOCIAL GOALS MAXIMIZE HAPPINESS 1 Getting the Most out of Giving: Concretely Framing a Prosocial Goal Maximizes Happiness Melanie Rudda University of Houston Jennifer Aakerb Melcher Hall, Houston, TX 77204-6021; Email: mrrudd@bauer.uh.edu; Phone: 713.743.4572. #12;CONCRETE

  12. SCHEDULING ABOVE MAC TO MAXIMIZE BATTERY LIFETIME AND THROUGHPUT IN WLANS

    E-Print Network [OSTI]

    Simunic, Tajana

    SCHEDULING ABOVE MAC TO MAXIMIZE BATTERY LIFETIME AND THROUGHPUT IN WLANS Edoardo Regini, Daeseob Diego La Jolla, CA 92093 {eregini, dalim, tajana}@ucsd.edu ABSTRACT Maximizing battery lifetime. This is because in heavy traffic conditions, the chance of nodes to successfully transmit a packet decreases

  13. INTRODUCTION Maximal performance is a key measurement in linking the ecology,

    E-Print Network [OSTI]

    Azizi, Manny

    rely on the assumption that performance measured in the laboratory represents a true maximum. In few3947 INTRODUCTION Maximal performance is a key measurement in linking the ecology, fitness et al., 2006). Studies of mechanical power output during maximal jumps have revealed that many frog

  14. Classifying Supersymmetric Solutions in 3D Maximal Supergravity

    E-Print Network [OSTI]

    Jan de Boer; Daniel R. Mayerson; Masaki Shigemori

    2014-11-18T23:59:59.000Z

    String theory contains various extended objects. Among those, objects of codimension two (such as the D7-brane) are particularly interesting. Codimension two objects carry non-Abelian charges which are elements of a discrete U-duality group and they may not admit a simple space-time description, in which case they are known as exotic branes. A complete classification of consistent codimension two objects in string theory is missing, even if we demand that they preserve some supersymmetry. As a step toward such a classification, we study the supersymmetric solutions of 3D maximal supergravity, which can be regarded as approximate description of the geometry near codimension two objects. We present a complete classification of the types of supersymmetric solutions that exist in this theory. We found that this problem reduces to that of classifying nilpotent orbits associated with the U-duality group, for which various mathematical results are known. We show that the only allowed supersymmetric configurations are 1/2, 1/4, 1/8, and 1/16 BPS, and determine the nilpotent orbits that they correspond to. One example of 1/16 BPS configurations is a generalization of the MSW system, where momentum runs along the intersection of seven M5-branes. On the other hand, it turns out exceedingly difficult to translate this classification into a simple criterion for supersymmetry in terms of the non-Abelian (monodromy) charges of the objects. For example, it can happen that a supersymmetric solution exists locally but cannot be extended all the way to the location of the object. To illustrate the various issues that arise in constructing supersymmetric solutions, we present a number of explicit examples.

  15. Mechanisms of gas precipitation in plasma-exposed tungsten

    SciTech Connect (OSTI)

    R. D. Kolasinski; D. F. Cowgill; D. C. Donovan; M. Shimada

    2012-05-01T23:59:59.000Z

    Precipitation in subsurface bubbles is a key process that governs how hydrogen isotopes migrate through and become trapped within plasma-exposed tungsten. We describe a continuum-scale model of hydrogen diffusion in plasma-exposed materials that includes the effects of precipitation. The model can account for bubble expansion via dislocation loop punching, using an accurate equation of state to determine the internal pressure. This information is used to predict amount of hydrogen trapped by bubbles, as well as the conditions where the bubbles become saturated. In an effort to validate the underlying assumptions, we compare our results with published positron annihilation and thermal desorption spectroscopy data, as well as our own measurements using the tritium plasma experiment (TPE).

  16. Occupational hypersensitivity pneumonitis in a smelter exposed to zinc fumes

    SciTech Connect (OSTI)

    Ameille, J.; Brechot, J.M.; Brochard, P.; Capron, F.; Dore, M.F. (Consultation de Pathologie Professionnelle, Hopital Raymond Poincare, Garches, (France))

    1992-03-01T23:59:59.000Z

    A smelter exposed to zinc fumes reported severe recurrent episodes of cough, dyspnea and fever. Bronchoalveolar lavage showed a marked increase in lymphocytes count with predominance of CD8 T-lymphocytes. Presence of zinc in alveolar macrophages was assessed by analytic transmission electron microscopy. This is the first case of recurrent bronchoalveolitis related to zinc exposure in which the clinical picture and BAL results indicate a probable hypersensitivity pneumonitis.

  17. Shear Modulus of Cylindrical CFRP Tendons Exposed to Moisture

    E-Print Network [OSTI]

    Toumpanaki, Eleni; Lees, Janet M.; Terrasi, Giovanni P.

    2014-09-02T23:59:59.000Z

    the degree 69 of molecular crosslinking in a resin matrix and consequently influences the chemical 70 stability and mechanical performance on the macroscale. The polymerisation of epoxy 71 groups is the result of three principal curing reactions. The first... against hydrolysis (chain scission) due to the 112 stability of the epoxy resin and carbon fibres when subjected to wet environments. 113 Nevertheless, hydrolysis has been observed in epoxy matrices exposed in distilled water at 114 high temperatures...

  18. Application of geostatistical reservoir description for maximizing waterflood infill drilling recovery from La Cira Field, Colombia 

    E-Print Network [OSTI]

    Cubillos Gutierrez, Helber

    1995-01-01T23:59:59.000Z

    One of the prospective ways to increase the oil production is to maximize the oil recovery from mature oil fields. In this study we apply an integrated approach that combines geostatistical reservoir description and reservoir ...

  19. First-principles quantum transport with electron-vibration interactions: A maximally localized Wannier functions approach

    E-Print Network [OSTI]

    Kim, Sejoong

    We present a first-principles approach for inelastic quantum transport calculations based on maximally localized Wannier functions. Electronic-structure properties are obtained from density-functional theory in a plane-wave ...

  20. Techniques for Maximizing Efficiency of Solar Energy Harvesting Systems (Invited Paper)

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    Techniques for Maximizing Efficiency of Solar Energy Harvesting Systems (Invited Paper) Pai H requiring battery replacement. This paper ex- amines technical issues with solar energy harvesting. First power point tracking, energy harvest- ing, solar panel, photovoltaic cell, supercapacitor, ultracapac

  1. Critical Cliques and Their Application to Influence Maximization in Online Social Networks

    E-Print Network [OSTI]

    Pandey, Nikhil

    2012-07-16T23:59:59.000Z

    the influence propagation process in the online social network using our proposed model and experimentally compare our approach to the greedy algorithm proposed by Kempe, Kleinberg and Tardos. Our main contribution in the influence maximization research...

  2. Evaluation of Maxim Module-Integrated Electronics at the DOE Regional Test Centers (Presentation)

    SciTech Connect (OSTI)

    Deline, C.; Sekulic, B.; Barkaszi, S.; Yang, J.; Kahn, S.

    2014-06-01T23:59:59.000Z

    Module-embedded power electronics developed by Maxim Integrated are under evaluation through a partnership with the Department of Energy's Regional Test Center (RTC) program. Field deployments of both conventional modules and electronics-enhanced modules are designed to quantify the performance advantage of Maxim's products under different amounts of interrow shading, and their ability to be deployed at a greater ground-coverage ratio than conventional modules. Simulations in PVSYST have quantified the predicted performance difference between conventional modules and Maxim's modules from interrow shading. Initial performance results have identified diffuse irradiance losses at tighter row spacing for both the Maxim and conventional modules. Comparisons with published models show good agreement with models predicting the greatest diffuse irradiance losses. At tighter row spacing, all of the strings equipped with embedded power electronics outperformed their conventional peers. An even greater performance advantage is predicted to occur in the winter months when the amount of interrow shading mismatch is at a maximum.

  3. Maximizing Hysteretic Losses in Magnetic Ferrite Nanoparticles via Model-Driven Synthesis and Materials Optimization

    E-Print Network [OSTI]

    Chen, Ritchie

    This article develops a set of design guidelines for maximizing heat dissipation characteristics of magnetic ferrite MFe[subscript 2]O[subscript 4] (M = Mn, Fe, Co) nanoparticles in alternating magnetic fields. Using ...

  4. Maximizing nuclear power plant performance via mega-uprates and subsequent license renewal

    E-Print Network [OSTI]

    DeWitte, Jacob D. (Jacob Dominic)

    2014-01-01T23:59:59.000Z

    The goal of this thesis is to develop a methodology to evaluate the engineering and economic implications of maximizing performance of the United States' commercial fleet of nuclear power plants. This methodology addresses ...

  5. A profit maximization approach to modeling U.S. agricultural trade

    E-Print Network [OSTI]

    Porras, Juan Jose

    1995-01-01T23:59:59.000Z

    Accurate understanding of domestic policy effects on agricultural trade is essential because of the importance of agricultural exports to the country's economic health. This thesis presents the results of a profit maximization (or GNP function...

  6. Sequence estimation in the presence of interference via the expectation-maximization algorithm

    E-Print Network [OSTI]

    Zhang, Quan G

    1996-01-01T23:59:59.000Z

    In this thesis, we developed a method for obtaining near-optimal sequence estimates in the presence of interference for direct sequence spread spectrum communication using the Expectation-Maximization (EM) algorithm. We assume binary phase shift...

  7. NREL: News - NREL Teams with SolarCity to Maximize Solar Power...

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

    114 NREL Teams with SolarCity to Maximize Solar Power on Electrical Grids Both are working together with the Hawaiian Electric Companies to analyze and enable higher penetrations...

  8. Application of geostatistical reservoir description for maximizing waterflood infill drilling recovery from La Cira Field, Colombia

    E-Print Network [OSTI]

    Cubillos Gutierrez, Helber

    1995-01-01T23:59:59.000Z

    One of the prospective ways to increase the oil production is to maximize the oil recovery from mature oil fields. In this study we apply an integrated approach that combines geostatistical reservoir description and reservoir simulation to evaluate...

  9. Health care facility-based decontamination of victims exposed to chemical, biological, and radiological materials

    E-Print Network [OSTI]

    Koenig, Kristi L MD

    2008-01-01T23:59:59.000Z

    radiological exposures may also present first to healthcare facilities.facility-based decontamination of victims exposed to chemical, biological, and radiologicalfacility-based decontamination of victims exposed to chemical, biological, and radiological

  10. Longitudinal study of children exposed to sulfur oxides

    SciTech Connect (OSTI)

    Dodge, R.; Solomon, P.; Moyers, J.; Hayes, C.

    1985-05-01T23:59:59.000Z

    This study is a longitudinal comparison of the health of children exposed to markedly different concentrations of sulfur dioxide and moderately different concentrations of particulate sulfate. The four groups of subjects lived in two areas of one smelter town and in two other towns, one of which was also a smelter town. In the area of highest pollution, children were intermittently exposed to high SO/sub 2/ levels (peak three-hour average concentration exceeded 2,500 micrograms/m3) and moderate particulate SO/sub 4/= levels (average concentration was 10.1 micrograms/m3). When the children were grouped by the four gradients of pollution observed, the prevalence of cough (measured by questionnaire) correlated significantly with pollution levels (trend chi-square = 5.6, p = 0.02). No significant differences in the incidence of cough or other symptoms occurred among the groups of subjects over three years, and pulmonary function and lung function growth over the study were roughly equal among all the groups. These results suggest that intermittent elevations in SO/sub 2/ concentration, in the presence of moderate particulate SO/sub 4/= concentration, produced evidence of bronchial irritation in the subjects, but no chronic effect on lung function or lung function growth was detected.

  11. Portfolio sire selection to maximize the utility of individual management and breeding goals

    E-Print Network [OSTI]

    Bloom, Andrew Scott

    1988-01-01T23:59:59.000Z

    PORTFOLIO SIRE SELECTION TO MAXIMIZE THE UTILITY OF INDIVIDUAL MANAGEMENT AND BREEDING GOALS A Thesis by ANDREW SCOTT BLOOM 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 December 1988 Major Subject: Dairy Science PORTFOLIO SIRE SELECTION TO MAXIMIZE THE UTILITY OF INDIVIDUAL MANAGEMENT AND BREEDING GOALS A Thesis by ANDREW SCOTT BLOOM Approved as to style and content by: michael A...

  12. Generation of maximally entangled states with sub-luminal Lorentz boost

    E-Print Network [OSTI]

    Veiko Palge; Jacob Dunningham

    2012-07-23T23:59:59.000Z

    Recent work has studied entanglement between the spin and momentum components of a single spin-1/2 particle and showed that maximal entanglement is obtained only when boosts approach the speed of light. Here we extend the boost scenario to general geometries and show that, intriguingly, maximal entanglement can be achieved with boosts less than the speed of light. Boosts approaching the speed of light may even decrease entanglement. We also provide a geometric explanation for this behavior.

  13. COURBES LISSES, CYCLE MAXIMAL ET POINTS INFINIMENT VOISINS DES SINGULARITES DE SURFACES

    E-Print Network [OSTI]

    Gonzalez-Sprinberg, Gerard

    S ; on appelle cycle maximal le cycle ZX = miEi d´efini par la partie divisorielle de mOX, o`u m est l seulement si le cycle maximal ZX = miEi de mOX poss`ede une composante r´eduite, i.e. il existe i tel que mi = 1. S'il en est ainsi, mOX est localement principal au voisinage du point exceptionnel P de la

  14. Health care facility-based decontamination of victims exposed to chemical, biological, and radiological materials

    E-Print Network [OSTI]

    Koenig, Kristi L MD

    2008-01-01T23:59:59.000Z

    care facility-based decontamination of victims exposed tofirst undergoing field decontamination. This article reviewsfacility-based decontamination, including regulatory

  15. Modeling epoxy foams exposed to fire-like heat fluxes.

    SciTech Connect (OSTI)

    Hobbs, Michael L.

    2004-11-01T23:59:59.000Z

    A decomposition chemistry and heat transfer model to predict the response of removable epoxy foam (REF) exposed to fire-like heat fluxes is described. The epoxy foam was created using a perfluorohexane blowing agent with a surfactant. The model includes desorption of the blowing agent and surfactant, thermal degradation of the epoxy polymer, polymer fragment transport, and vapor-liquid equilibrium. An effective thermal conductivity model describes changes in thermal conductivity with reaction extent. Pressurization is modeled assuming: (1) no strain in the condensed-phase, (2) no resistance to gas-phase transport, (3) spatially uniform stress fields, and (4) no mass loss from the system due to venting. The model has been used to predict mass loss, pressure rise, and decomposition front locations for various small-scale and large-scale experiments performed by others. The framework of the model is suitable for polymeric foams with absorbed gases.

  16. Modeling epoxy foams exposed to fire-like heat fluxes.

    SciTech Connect (OSTI)

    Hobbs, Michael L.

    2004-10-01T23:59:59.000Z

    A decomposition chemistry and heat transfer model to predict the response of removable epoxy foam (REF) exposed to fire-like heat fluxes is described. The epoxy foam was created using a perfluorohexane blowing agent with a surfactant. The model includes desorption of the blowing agent and surfactant, thermal degradation of the epoxy polymer, polymer fragment transport, and vapor-liquid equilibrium. An effective thermal conductivity model describes changes in thermal conductivity with reaction extent. Pressurization is modeled assuming: (1) no strain in the condensed-phase, (2) no resistance to gas-phase transport, (3) spatially uniform stress fields, and (4) no mass loss from the system due to venting. The model has been used to predict mass loss, pressure rise, and decomposition front locations for various small-scale and large-scale experiments performed by others. The framework of the model is suitable for polymeric foams with absorbed gases.

  17. Fish exposed to BP oil spill 'swim slower' Study finds the speed of mahi-mahi exposed to BP's Gulf of

    E-Print Network [OSTI]

    Grosell, Martin

    the 2010 BP Deepwater Horizon spill, swim nearly half as fast as their unaffected counterparts. "The worryFish exposed to BP oil spill 'swim slower' Study finds the speed of mahi-mahi exposed to BP's Gulf in the gulf shortly after the spill, which oil company BP disputed. "The study does not provide any evidence

  18. Pacific Northwest National Laboratory Site Radionuclide Air Emissions Report for Calendar Year 2011

    SciTech Connect (OSTI)

    Snyder, Sandra F.; Barnett, J. M.; Bisping, Lynn E.

    2012-06-12T23:59:59.000Z

    This report documents radionuclide air emissions that result in the highest effective dose equivalent (EDE) to a member of the public, referred to as the maximally exposed individual (MEI). The report has been prepared in compliance with the Code of Federal Regulations (CFR), Title 40, Protection of the Environment, Part 61, National Emission Standards for Hazardous Air Pollutants (NESHAP), Subpart H, National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities and Washington Administrative Code (WAC) Chapter 246-247, Radiation Protection Air Emissions. The EDE to the PNNL Site MEI due to routine emissions in 2011 from PNNL Site sources was 1.7E 05 mrem (1.7E-7 mSv) EDE. No nonroutine emissions occurred in 2011. The total radiological dose for 2011 to the MEI from all PNNL Site radionuclide emissions was more than 10,000 times smaller than the federal and state standard of 10 mrem/yr, to which the PNNL Site is in compliance.

  19. Pacific Northwest National Laboratory Campus Radionuclide Air Emissions Report for Calendar Year 2013

    SciTech Connect (OSTI)

    Snyder, Sandra F.; Barnett, J. M.; Bisping, Lynn E.

    2014-06-01T23:59:59.000Z

    This report documents radionuclide air emissions that result in the highest effective dose equivalent (EDE) to a member of the public, referred to as the maximally exposed individual (MEI). The report has been prepared in compliance with the Code of Federal Regulations (CFR), Title 40, Protection of the Environment, Part 61, National Emission Standards for Hazardous Air Pollutants (NESHAP), Subpart H, National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities and Washington Administrative Code (WAC) Chapter 246-247, Radiation Protection Air Emissions. The dose to the PNNL Site MEI due to routine major and minor point source emissions in 2013 from PNNL Site sources is 2E-05 mrem (2E-07 mSv) EDE. The dose from fugitive emissions (i.e., unmonitored sources) is 2E-6 mrem (2E-8 mSv) EDE. The dose from radon emissions is 1E-11 mrem (1E-13 mSv) EDE. No nonroutine emissions occurred in 2013. The total radiological dose for 2013 to the MEI from all PNNL Site radionuclide emissions, including fugitive emissions and radon, is 2E-5 mrem (2E-7 mSv) EDE, or 100,000 times smaller than the federal and state standard of 10 mrem/yr, to which the PNNL Site is in compliance

  20. Pacific Northwest National Laboratory Site Radionuclide Air Emissions Report for Calendar Year 2012

    SciTech Connect (OSTI)

    Snyder, Sandra F.; Barnett, J. M.; Bisping, Lynn E.

    2013-06-06T23:59:59.000Z

    This report documents radionuclide air emissions that result in the highest effective dose equivalent (EDE) to a member of the public, referred to as the maximally exposed individual (MEI). The report has been prepared in compliance with the Code of Federal Regulations (CFR), Title 40, Protection of the Environment, Part 61, National Emission Standards for Hazardous Air Pollutants (NESHAP), Subpart H, National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities and Washington Administrative Code (WAC) Chapter 246-247, Radiation Protection Air Emissions. The dose to the PNNL Site MEI due to routine major and minor point source emissions in 2012 from PNNL Site sources is 9E-06 mrem (9E-08 mSv) EDE. The dose from fugitive emissions (i.e., unmonitored sources) is 1E-7 mrem (1E-9 mSv) EDE. The dose from radon emissions is 2E-6 mrem (2E-08 mSv) EDE. No nonroutine emissions occurred in 2012. The total radiological dose for 2012 to the MEI from all PNNL Site radionuclide emissions, including fugitive emissions and radon, is 1E-5 mrem (1E-7 mSv) EDE, or 100,000 times smaller than the federal and state standard of 10 mrem/yr, to which the PNNL Site is in compliance.

  1. Non-Convex Utility Maximization in Gaussian MISO Broadcast and Interference Channels

    E-Print Network [OSTI]

    Rossi, M; Simeone, O; Haimovich, A M

    2011-01-01T23:59:59.000Z

    Utility (e.g., sum-rate) maximization for multiantenna broadcast and interference channels (with one antenna at the receivers) is known to be in general a non-convex problem, if one limits the scope to linear (beamforming) strategies at transmitter and receivers. In this paper, it is shown that, under some standard assumptions, most notably that the utility function is decreasing with the interference levels at the receivers, a global optimal solution can be found with reduced complexity via a suitably designed Branch-and-Bound method. Although infeasible for real-time implementation, this procedure enables a non-heuristic and systematic assessment of suboptimal techniques. A suboptimal strategy is then proposed that, when applied to sum-rate maximization, reduces to the well-known distributed pricing techniques. Finally, numerical results are provided that compare global optimal solutions with suboptimal (pricing) techniques for sum-rate maximization problems, leading to insight into issues such as the robus...

  2. Non maximal cyclically monotone graphs and construction of a bipotential for the Coulomb's dry friction law

    E-Print Network [OSTI]

    Buliga, Marius; Vallee, Claude

    2008-01-01T23:59:59.000Z

    We show a surprising connexion between a property of the inf convolutions of a family of convex lower semicontinuous functions and the fact that intersections of maximal cyclically monotone graphs are the critical set of a bipotential. We then extend the results from arXiv:math/0608424v4 to bipotentials convex covers, generalizing the notion of a bi-implicitly convex lagrangian cover. As an application we prove that the bipotential related to Coulomb's friction law is related to a specific bipotential convex cover with the property that any graph of the cover is non maximal cyclically monotone.

  3. NON-CONVEX UTILITY MAXIMIZATION IN GAUSSIAN MISO BROADCAST AND INTERFERENCE CHANNELS

    E-Print Network [OSTI]

    Simeone, Osvaldo

    NON-CONVEX UTILITY MAXIMIZATION IN GAUSSIAN MISO BROADCAST AND INTERFERENCE CHANNELS M. Rossi, A. M- imization [1] or SINR balancing for the multiple-input single-output (MISO) BC [2], and thus solvable, MISO BC and IC WSRM with general convex power constraint. The proposed BB approach is based

  4. BEAMFORMING MAXIMIZES THE MISO COMPOUND CAPACITY Ami Wiesel, Yonina C. Eldar and Shlomo Shamai (Shitz)

    E-Print Network [OSTI]

    Eldar, Yonina

    BEAMFORMING MAXIMIZES THE MISO COMPOUND CAPACITY Ami Wiesel, Yonina C. Eldar and Shlomo Shamai for exploiting this multiple in- put single output (MISO) channel are space time coding, and beamforming (BF]. The capacity achieving transmit technique in MISO chan- nels with additive Gaussian noise is signaling using

  5. Expectation Maximization as Message Passing Justin Dauwels, Sascha Korl, and Hans-Andrea Loeliger

    E-Print Network [OSTI]

    Loeliger, Hans-Andrea

    ISIT 2005 Expectation Maximization as Message Passing Justin Dauwels, Sascha Korl, and Hans, and used, as a message passing algorithm in factor graphs. I. INTRODUCTION Graphical models [1 algorithms, and particle filters can be naturally viewed and used as message passing in factor graphs [3], [4

  6. Optimal Halbach permanent magnet designs for maximally pulling and pushing nanoparticles

    E-Print Network [OSTI]

    Shapiro, Benjamin

    Optimal Halbach permanent magnet designs for maximally pulling and pushing nanoparticles A. Sarwar Stewart School of Industrial and Systems Engineering (ISyE), Georgia Institute of Technology, USA a r t i Available online 19 September 2011 Keywords: Magnetic nanoparticle Targeted drug deliver Magnetic drug

  7. HUMAN RESOURCES WORKING GROUP: ACTION PLAN VISION PRIORITY: MAXIMIZING OUR HUMAN RESOURCES

    E-Print Network [OSTI]

    Sheridan, Jennifer

    HUMAN RESOURCES WORKING GROUP: ACTION PLAN VISION PRIORITY: MAXIMIZING OUR HUMAN RESOURCES, and student body." From David Ward, "A Vision for the Future," p. 9. This document lists the human-resource goals and plans of the Office of Human Resources, the Equity and Diversity Resource Center

  8. Maximizing the Life of a Lithium-Ion Cell by Optimization of Charging Rates

    E-Print Network [OSTI]

    Maximizing the Life of a Lithium-Ion Cell by Optimization of Charging Rates Saeed Khaleghi Rahimian currents as a function of cycle number during cycling for the lithium-ion cell are obtained. A single. The useful life of lithium-ion cells is of interest for many appli- cations. A substantial amount of work has

  9. Wind Farm Power Maximization Based On A Cooperative Static Game Approach

    E-Print Network [OSTI]

    Stanford University

    Wind Farm Power Maximization Based On A Cooperative Static Game Approach Jinkyoo Parka, Soonduck efficiency of wind farms using cooperative control. The key factors in determining the power production and the loading for a wind turbine are the nacelle yaw and blade pitch angles. However, the nacelle and blade

  10. Network Lifetime Maximization in Delay-Tolerant Sensor Networks With a Mobile Sink

    E-Print Network [OSTI]

    Liang, Weifa

    of network size, the single sink neighborhood problem becomes worse. Another is network connectivity a trajectory for the mobile sink and designing an energy-efficient routing protocol to route sensing data still lag behind, making energy resource the fundamental constraint in WSNs. To maximize the network

  11. Revenue Maximization in Reservation-based Online Advertising Through Dynamic Inventory

    E-Print Network [OSTI]

    Tomkins, Andrew

    Revenue Maximization in Reservation-based Online Advertising Through Dynamic Inventory Management inventory on content sites owned by publishers (e.g., CNN, amazon, etc.). Sales representatives, acting on behalf of publishers, sell inventory (impression) bundles of various types (text, video, multimedia, etc

  12. Slack: Maximizing Performance Under Technological Constraints Brian Fields Rastislav Bodik Mark D. Hill

    E-Print Network [OSTI]

    Hill, Mark D.

    Slack: Maximizing Performance Under Technological Constraints Brian Fields Rastislav Bod´ik Mark D delay, power, and circuit complexity) by resorting to non- uniform designs that provide resources in their own right. To this end, we develop slack for use in creating con- trol policies that match program

  13. Appears in 29th International Symposium on Computer Architecture Slack: Maximizing Performance Under Technological Constraints

    E-Print Network [OSTI]

    Bodik, Rastisla

    Appears in 29th International Symposium on Computer Architecture Slack: Maximizing Performance) by resorting to non- uniform designs that provide resources at multiple qual- ity levels (e.g., fast believe it is appropriate to examine them in their own right. To this end, we develop slack for use

  14. Optimum Charging Profile for Lithium-ion Batteries to Maximize Energy Storage and Utilization

    E-Print Network [OSTI]

    Subramanian, Venkat

    Optimum Charging Profile for Lithium-ion Batteries to Maximize Energy Storage and Utilization Ravi applications, the ability to recharge quickly and efficiently is a critical requirement for a storage battery The optimal profile of charging current for a lithium-ion battery is estimated using dynamic optimization

  15. Wavelet based multiresolution expectation maximization image reconstruction algorithm for positron emission tomography

    E-Print Network [OSTI]

    Raheja, Amar

    Wavelet based multiresolution expectation maximization image reconstruction algorithm for positron. This work transforms the MGEM and MREM algorithm to a Wavelet based Multiresolution EM (WMREM) algorithm by performing a 2D-wavelet transform on the acquired tube data that is used to reconstruct images at different

  16. Non-convex clustering using expectation maximization algorithm with rough set initialization

    E-Print Network [OSTI]

    Mitra, Pabitra

    criterion function or likelihood of some probabilistic model (e.g., k-means (Jain et al., 1999), mixture schemes like k-means and ex- pectation-maximization (EM) are fast and easily scalable to large databases. Comparison with related methods is made in terms of a cluster quality measure and computation time. Ó 2002

  17. Sample of Chart Interest in maximizing the performance of heating and ventilation

    E-Print Network [OSTI]

    McGaughey, Alan

    Sample of Chart Motivation Interest in maximizing the performance of heating and ventilation within necessitates the development of accurate heat transfer models which can account for arbitrary geometries and study relevant building parameters · Create an accurate thermal-fluid heating model · Optimize

  18. Evaluation of Maxim Module-Integrated Electronics at the DOE Regional Test Centers: Preprint

    SciTech Connect (OSTI)

    Deline, C.; Sekulic, B.; Stein, J.; Barkaszi, S.; Yang, J.; Kahn, S.

    2014-07-01T23:59:59.000Z

    Module-embedded power electronics developed by Maxim Integrated are under evaluation through a partnership with the Department of Energy's Regional Test Center (RTC) program. Field deployments of both conventional modules and electronics-enhanced modules are designed to quantify the performance advantage of Maxim's products under different amounts of inter-row shading, and their ability to be deployed at a greater ground-coverage-ratio than conventional modules. Simulations in PVSYST have quantified the predicted performance difference between conventional modules and Maxim's modules from inter-row shading. Initial performance results have identified diffuse irradiance losses at tighter row spacing for both the Maxim and conventional modules. Comparisons with published models show good agreement with models predicting the greatest diffuse irradiance losses. At tighter row spacing, all of the strings equipped with embedded power electronics outperformed their conventional peers. An even greater performance advantage is predicted to occur in the winter months when the amount of inter-row shading mismatch is at a maximum.

  19. Automatic Drug-Drug Interaction Detection: A Machine Learning Approach With Maximal

    E-Print Network [OSTI]

    Rosso, Paolo

    Automatic Drug-Drug Interaction Detection: A Machine Learning Approach With Maximal Frequent-level and character-level have been proven to have a high discrim- inative power for detecting DDI, while pattern% precision and 84% recall. In [3] the authors propose a first approximation for DDI detection based

  20. Damage In a Random Mlerstructure: Size Effects, Fractals, and Entropy Maximization

    E-Print Network [OSTI]

    Ostoja-Starzewski, Martin

    Damage In a Random Mler©structure: Size Effects, Fractals, and Entropy Maximization Martin Ostoja a micromechanical approach to damage growth in graph- representable microstructures is presented. Damage is denned in scatter of strength, and the fractal character of damage geometry, and thus provides a basis

  1. SENSOR PLACEMENT FOR MAXIMIZING LIFETIME PER UNIT COST IN WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    Chuah, Chen-Nee

    SENSOR PLACEMENT FOR MAXIMIZING LIFETIME PER UNIT COST IN WIRELESS SENSOR NETWORKS Yunxia Chen in a wireless sensor network (WSN). Analyzing the lifetime per unit cost of a linear WSN, we find that deploying of sensors deployed in the network, can be used to measure the utilization efficiency of sensors

  2. Theory: Biological systems organize to maximize entropy production subject to information and biophysicochemical constraints.

    E-Print Network [OSTI]

    Vallino, Joseph J.

    Theory: Biological systems organize to maximize entropy production subject to information the fitness landscape is as dynamic as the organisms themselves. The theory of MEP under biophysicochemical, 2005b) presented a provisional proof on the theory of maximum entropy production (MEP), which posits

  3. E04 Minimizing or Maximizing a Function E04UPF NAG Fortran Library Routine Document

    E-Print Network [OSTI]

    Jones, Alan G.

    E04 ­ Minimizing or Maximizing a Function E04UPF ­ NAG Fortran Library Routine Document Note at Mark 16. 1 Purpose E04UPF is designed to minimize an arbitrary smooth sum of squares function subject. It is not intended for large sparse problems. E04UPF may also be used for unconstrained, bound

  4. Social Group Utility Maximization Game with Applications in Mobile Social Networks

    E-Print Network [OSTI]

    Reisslein, Martin

    Social Group Utility Maximization Game with Applications in Mobile Social Networks Xiaowen Gong. Based on this model, we study two important applications in mobile social networks: random access control and power control, and quantify the impact of social ties on users' strategies and network

  5. Maximizing Classifier Utility when Training Data is Costly Gary M. Weiss and Ye Tian

    E-Print Network [OSTI]

    Weiss, Gary

    Maximizing Classifier Utility when Training Data is Costly Gary M. Weiss and Ye Tian Department of acquir- ing the training examples in the data mining process; we analyze the impact of the cost- formance of several progressive sampling schemes, which, given the cost of the training data, will generate

  6. Author's personal copy Maximizing the solar to H2 energy conversion efficiency

    E-Print Network [OSTI]

    Pilon, Laurent

    to thermochemical or electrolytic hydrogen production technologies [1­3]. However, solar to hydrogen energyAuthor's personal copy Maximizing the solar to H2 energy conversion efficiency of outdoor, Cockrell School of Engineering, The University of Texas at Austin ­ Austin, TX 78712, USA b Mechanical

  7. Distributed Network Utility Maximization using Event-triggered augmented Lagrangian methods

    E-Print Network [OSTI]

    Lemmon, Michael

    Distributed Network Utility Maximization using Event-triggered augmented Lagrangian methods Pu Wan problems in networked systems, like distributed control of sensor-actuator networks [1], resource to collaboratively solve a network opti- mization problem. A variety of distributed algorithms have been proposed

  8. Power Utility Maximization for Multiple-Supply Systems by a Load-Matching Switch

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    Power Utility Maximization for Multiple-Supply Systems by a Load-Matching Switch Chulsung Park {chulsung,phchou}@uci.edu ABSTRACT For embedded systems that rely on multiple power sources (MPS), power systems General Terms Design, experimentation Keywords Solar energy, photovoltaics, power model, solar

  9. Maximal wild monodromy in unequal characteristic Claus Lehr and Michel Matignon

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Maximal wild monodromy in unequal characteristic Claus Lehr and Michel Matignon June 2, 2006 over which C has a stable model. In particular we are interested in the wild part of this extension the techniques developed in that paper we study the wild finite monodromy extension, i.e. the extension

  10. A Theory of Deep Stratification and Overturning Circulation in the Ocean MAXIM NIKURASHIN AND GEOFFREY VALLIS

    E-Print Network [OSTI]

    Vallis, Geoff

    A Theory of Deep Stratification and Overturning Circulation in the Ocean MAXIM NIKURASHIN overturning circulation in an idealized single-basin ocean with a circumpolar channel is presented. The theory; and consistently accounts for the interaction between the circumpolar channel and the rest of the ocean. The theory

  11. Cherish every Joule: Maximizing throughput with an eye on network-wide energy consumption

    E-Print Network [OSTI]

    Hou, Y. Thomas

    Cherish every Joule: Maximizing throughput with an eye on network-wide energy consumption Canming: {jcm, yshi, thou, wjlou}@vt.edu Abstract Conserving network-wide energy consumption is becoming of wireless networks, the concern of energy consumption is becoming in- creasingly important for network

  12. Maximally Random Jamming of Two-Dimensional One-Component and Binary Hard Disc Fluids

    E-Print Network [OSTI]

    Xinliang Xu; Stuart A. Rice

    2010-10-05T23:59:59.000Z

    We report calculations of the density of maximally random jamming (aka random close packing) of one-component and binary hard disc fluids. The theoretical structure used provides a common framework for description of the hard disc liquid to hexatic, the liquid to hexagonal crystal and the liquid-to-maximally random jammed state transitions. Our analysis is based on locating a particular bifurcation of the solutions of the integral equation for the inhomogeneous single particle density at the transition between different spatial structures. The bifurcation of solutions we study is initiated from the dense metastable fluid, and we associate it with the limit of stability of the fluid, which we identify with the transition from the metastable fluid to a maximally random jammed state. For the one-component hard disc fluid the predicted packing fraction at which the metastable fluid to maximally random jammed state transition occurs is 0.84, in excellent agreement with the experimental value 0.84 \\pm 0.02. The corresponding analysis of the limit of stability of a binary hard disc fluid with specified disc diameter ratio and disc composition requires extra approximations in the representations of the direct correlation function, the equation of state, and the number of order parameters accounted for. Keeping only the order parameter identified with the largest peak in the structure factor of the highest density regular lattice with the same disc diameter ratio and disc composition as the binary fluid, the predicted density of maximally random jamming is found to be 0.84 to 0.87, depending on the equation of state used, and very weakly dependent on the ratio of disc diameters and the fluid composition, in agreement with both experimental data and computer simulation data.

  13. Radionuclide air emissions report for the Hanford Site -- calendar year 1997

    SciTech Connect (OSTI)

    Gleckler, B.P.; Rhoads, K.

    1998-06-17T23:59:59.000Z

    This report documents radionuclide air emission from the Hanford Site in 1997, and the resulting effective dose equivalent to the maximally exposed member of the public, referred to as the MEI. The report has been prepared in accordance with reporting requirements in the Code of Federal Regulations, Title 40, Protection of the Environment, Part 61, National Emissions Standards for Hazardous Air Pollutants, Subpart H, National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities. This report has also been prepared in accordance with the reporting requirements of the Washington Administrative Code Chapter 246-247, Radiation Protection-Air Emissions. The effective dose equivalent to the MEI from the Hanford Site`s 1997 point source emissions was 1.2 E-03 mrem (1.2 E-05 mSv), which is well below the 40 CFR 61 Subpart H regulatory limit of 10 mrem/yr. Radon and thoron emissions, exempted from 40 CFR 61 Subpart H, resulted in an effective dose equivalent to the MEI of 2.5 E-03 mrem (2.5 E-05 mSv). The effective dose equivalent to the MEI attributable to diffuse and fugitive emissions was 2.2 E-02 mrem (2.2 E-04 mSv). The total effective dose equivalent from all of the Hanford Site`s air emissions was 2.6 E-02 mrem (2.6 E-04 mSv). The effective dose equivalent from all of the Hanford Site`s air emissions is well below the Washington Administrative Code, Chapter 246-247, regulatory limit of 10 mrem/yr.

  14. Who is Exposed to Gas Prices? How Gasoline Prices Affect Automobile Manufacturers and Dealerships

    E-Print Network [OSTI]

    Rothman, Daniel

    Who is Exposed to Gas Prices? How Gasoline Prices Affect Automobile Manufacturers and Dealerships-busse@kellogg.northwestern.edu, knittel@mit.edu, f-zettelmeyer@kellogg.northwestern.edu #12;Who is Exposed to Gas Prices? How Gasoline of gasoline prices, and consumer responses to gasoline prices have been well studied. In this paper

  15. Preliminary Investigation into the Corrosion of Beryllium Exposed to Celotex and Water

    E-Print Network [OSTI]

    Preliminary Investigation into the Corrosion of Beryllium Exposed to Celotex and Water R. Scott , it was uncertain in the LLNL work if accelerate corrosion would result when beryllium was exposed to Celotex the corrosion rate of beryllium. While preliminary, these results indicate that storage conditions which may

  16. Water balance in rats exposed to chronic centrifugation RUDY M. ORTIZ AND CHARLES E. WADE

    E-Print Network [OSTI]

    Ortiz, Rudy M.

    was observed, the lack of a change in %TBW among the three measurement periods or in water flux over the 12Water balance in rats exposed to chronic centrifugation RUDY M. ORTIZ AND CHARLES E. WADE Life; accepted in final form 22 February 2000 Ortiz, Rudy M., and Charles E. Wade. Water balance in rats exposed

  17. Water-induced Bulk Ba(NO3)2 Formation From NO2 Exposed Thermally...

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

    Bulk Ba(NO3)2 Formation From NO2 Exposed Thermally Aged BaOAl2O3. Water-induced Bulk Ba(NO3)2 Formation From NO2 Exposed Thermally Aged BaOAl2O3. Abstract: Phase changes in high...

  18. Benzene Increases Aneuploidy in the Lymphocytes of Exposed Workers: A Comparison of Data Obtained by

    E-Print Network [OSTI]

    California at Berkeley, University of

    Benzene Increases Aneuploidy in the Lymphocytes of Exposed Workers: A Comparison of Data Obtained Benzene is an established human leukemogen that increases the level of chromosome aberrations in lym and 8 in healthy benzene-exposed human subjects. Metaphase and interphase cells from the peripheral

  19. SIMS ISOTOPIC ANALYSIS OF INTERPLANETARY DUST FROM SPACE-EXPOSED AEROGEL. F. J. Stadermann

    E-Print Network [OSTI]

    SIMS ISOTOPIC ANALYSIS OF INTERPLANETARY DUST FROM SPACE-EXPOSED AEROGEL. F. J. Stadermann 1: Aerogel is the medium of choice for the intact capture of small particles in space, because it is capable materials [1, 2]. After space-exposed aerogel is returned to the laboratory, the first step of analysis

  20. LPSC XXXI Houston, March 2000 SIMS ISOTOPIC ANALYSIS OF INTERPLANETARY DUST FROM SPACE-EXPOSED AEROGEL.

    E-Print Network [OSTI]

    -EXPOSED AEROGEL. F. J. Stadermann 1,2 and C. Floss 1,3 , 1 Laboratory for Space Sciences, 2 Physics Department, 3@howdy.wustl.edu). Introduction: Aerogel is the medium of choice for the intact capture of small particles in space, because of their component materials [1, 2]. After space-exposed aerogel is returned to the laboratory, the first step

  1. Elevated Trace Element Concentrations in Southern Toads, Bufo terrestris, Exposed to Coal Combustion Waste

    E-Print Network [OSTI]

    Hopkins, William A.

    Elevated Trace Element Concentrations in Southern Toads, Bufo terrestris, Exposed to Coal, and behavioral abnormalities in amphibians to coal combustion wastes (coal ash). Few studies, however, have determined trace element concentrations in amphibians exposed to coal ash. In the current study we compare

  2. Respiratory symptoms and lung function in oil mist-exposed workers

    SciTech Connect (OSTI)

    Jarvholm, B. (Dept.of Occupational Medicine, Gothenburg, Sweden); Bake, B.; Lavenius, B.; Thiringer, G.; Vokmann, R.

    1982-06-01T23:59:59.000Z

    The prevalence of respiratory symptoms was registered and ventilatory function was determined in 164 men exposed to oil mist. The average exposure time was 16.2 years. One hundred fifty-nine office workers served as controls. The exposed men reported more respiratory symptoms: 14% of the exposed nonsmokers v. 2% of the nonsmoking controls having cough at least three months a year. There were non significant differences between spirometric measurements and chest roentgenograms of the men exposed to oil mist and those of the office workers. The lung function of 25 nonsmoking exposed men was further examined with other lung function tests. The mean values for closing volume, slope of the alveolar plateau, total lung capacity, residual volume, elastic recoil at various lung volumes, and diffusion capacity did not differ significantly.

  3. Maximization of No-Load Flux Density in Surface Mounted Permanent Magnet Motors Frdric DUBAS, Christophe ESPANET & Abdellatif MIRAOUI.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Maximization of No-Load Flux Density in Surface Mounted Permanent Magnet Motors Frédéric DUBAS, Christophe ESPANET & Abdellatif MIRAOUI. Research Laboratory in Electronics, Electrical engineering expression of the optimal thickness of the magnet which make it possible to maximize the no-load flux density

  4. Control Strategies for Distributed Energy Resources to Maximize the Use of Wind Power in Rural Microgrids

    SciTech Connect (OSTI)

    Lu, Shuai; Elizondo, Marcelo A.; Samaan, Nader A.; Kalsi, Karanjit; Mayhorn, Ebony T.; Diao, Ruisheng; Jin, Chunlian; Zhang, Yu

    2011-10-10T23:59:59.000Z

    The focus of this paper is to design control strategies for distributed energy resources (DERs) to maximize the use of wind power in a rural microgrid. In such a system, it may be economical to harness wind power to reduce the consumption of fossil fuels for electricity production. In this work, we develop control strategies for DERs, including diesel generators, energy storage and demand response, to achieve high penetration of wind energy in a rural microgrid. Combinations of centralized (direct control) and decentralized (autonomous response) control strategies are investigated. Detailed dynamic models for a rural microgrid are built to conduct simulations. The system response to large disturbances and frequency regulation are tested. It is shown that optimal control coordination of DERs can be achieved to maintain system frequency while maximizing wind power usage and reducing the wear and tear on fossil fueled generators.

  5. Study of the zero modes of the Faddeev–Popov operator in the maximal Abelian gauge

    SciTech Connect (OSTI)

    Capri, M.A.L., E-mail: caprimarcio@gmail.com; Guimaraes, M.S., E-mail: msguimaraes@uerj.br; Lemes, V.E.R., E-mail: vitor@dft.if.uerj.br; Sorella, S.P., E-mail: sorella@uerj.br; Tedesco, D.G., E-mail: dgtedesco@uerj.br

    2014-05-15T23:59:59.000Z

    A study of the zero modes of the Faddeev–Popov operator in the maximal Abelian gauge is presented in the case of the gauge group SU(2) and for different Euclidean space–time dimensions. Explicit examples of classes of normalizable zero modes and corresponding gauge field configurations are constructed by taking into account two boundary conditions, namely: (i) the finite Euclidean Yang–Mills action, (ii) the finite Hilbert norm. -- Highlights: •We study the zero modes of the Faddeev–Popov operator in the maximal Abelian gauge. •For d=2 we obtain solutions with finite action but not finite Hilbert norm. •For d=3,4 we obtain solutions with finite action and finite Hilbert norm. •These results can be compared with those previously obtained in the Landau gauge.

  6. Apparatus and method for maximizing power delivered by a photovoltaic array

    DOE Patents [OSTI]

    Muljadi, Eduard (Golden, CO); Taylor, Roger W. (Golden, CO)

    1998-01-01T23:59:59.000Z

    A method and apparatus for maximizing the electric power output of a photovoltaic array connected to a battery where the voltage across the photovoltaic array is adjusted through a range of voltages to find the voltage across the photovoltaic array that maximizes the electric power generated by the photovoltaic array and then is held constant for a period of time. After the period of time has elapsed, the electric voltage across the photovoltaic array is again adjusted through a range of voltages and the process is repeated. The electric energy and the electric power generated by the photovoltaic array is delivered to the battery which stores the electric energy and the electric power for later delivery to a load.

  7. Apparatus and method for maximizing power delivered by a photovoltaic array

    DOE Patents [OSTI]

    Muljadi, E.; Taylor, R.W.

    1998-05-05T23:59:59.000Z

    A method and apparatus for maximizing the electric power output of a photovoltaic array connected to a battery where the voltage across the photovoltaic array is adjusted through a range of voltages to find the voltage across the photovoltaic array that maximizes the electric power generated by the photovoltaic array and then is held constant for a period of time. After the period of time has elapsed, the electric voltage across the photovoltaic array is again adjusted through a range of voltages and the process is repeated. The electric energy and the electric power generated by the photovoltaic array is delivered to the battery which stores the electric energy and the electric power for later delivery to a load. 20 figs.

  8. One-dimensional hydrogen atom with minimal length uncertainty and maximal momentum

    E-Print Network [OSTI]

    Pouria Pedram

    2013-02-16T23:59:59.000Z

    We present exact energy eigenvalues and eigenfunctions of the one-dimensional hydrogen atom in the framework of the Generalized (Gravitational) Uncertainty Principle (GUP). This form of GUP is consistent with various theories of quantum gravity such as string theory, loop quantum gravity, black-hole physics, and doubly special relativity and implies a minimal length uncertainty and a maximal momentum. We show that the quantized energy spectrum exactly agrees with the semiclassical results.

  9. Almost Maximal Lepton Mixing with Large T Violation in Neutrino Oscillations and Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Zhi-zhong Xing

    2001-07-02T23:59:59.000Z

    We point out two simple but instructive possibilities to construct the charged lepton and neutrino mass matrices, from which the nearly bi-maximal neutrino mixing with large T violation can naturally emerge. The two lepton mixing scenarios are compatible very well with current experimental data on solar and atmospheric neutrino oscillations, and one of them may lead to an observable T-violating asymmetry between \

  10. Maximally Symmetric Minimal Unification Model SO(32) with Three Families in Ten Dimensional Space-time

    E-Print Network [OSTI]

    Yue-Liang Wu

    2007-01-22T23:59:59.000Z

    Based on a maximally symmetric minimal unification hypothesis and a quantum charge-dimension correspondence principle, it is demonstrated that each family of quarks and leptons belongs to the Majorana-Weyl spinor representation of 14-dimensions that relate to quantum spin-isospin-color charges. Families of quarks and leptons attribute to a spinor structure of extra 6-dimensions that relate to quantum family charges. Of particular, it is shown that 10-dimensions relating to quantum spin-family charges form a motional 10-dimensional quantum space-time with a generalized Lorentz symmetry SO(1,9), and 10-dimensions relating to quantum isospin-color charges become a motionless 10-dimensional quantum intrinsic space. Its corresponding 32-component fermions in the spinor representation possess a maximal gauge symmetry SO(32). As a consequence, a maximally symmetric minimal unification model SO(32) containing three families in ten dimensional quantum space-time is naturally obtained by choosing a suitable Majorana-Weyl spinor structure into which quarks and leptons are directly embedded. Both resulting symmetry and dimensions coincide with the ones of type I string and heterotic string SO(32) in string theory.

  11. ataxia-telangiectasia cells exposed: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  12. acousto-optic cell exposed: Topics by E-print Network

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

    (D), exposed height oi the cylinder (E. ), wave height (H), water depth (d), and the wave length (L). The kinematic ard dynamic qua ntvties are the wave per od (T),...

  13. In situ XRD Study of Ca2+ Saturated Montmorillonite (STX-1) Exposed...

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

    These experiments indicate that scCO2 can intercalate hydrated clays, where the 1W hydrate state is stable when exposed to anhydrous scCO2 under conditions proposed for...

  14. Characterization of transient cavitation in gas sparged solutions exposed to megasonic field using cyclic voltammetry

    E-Print Network [OSTI]

    Deymier, Pierre

    Characterization of transient cavitation in gas sparged solutions exposed to megasonic field using 2011 Keywords: Megasonic energy Transient cavitation Acoustic streaming Dissolved gases Microelectrode been a significant interest in understanding the phenomena of cavitation and acoustic streaming, which

  15. Medical status of Marshallese accidentally exposed to 1954 Bravo fallout radiation: January 1988 through December 1991

    SciTech Connect (OSTI)

    Howard, J.E.; Heotis, P.M.; Scott, W.A.; Adams, W.H.

    1995-07-01T23:59:59.000Z

    The purpose of this report is to disseminate information concerning the medical status of 253 Marshallese exposed to fallout radiation in 1954. This report discusses the medical care provided and the medical findings for the years 1988-1991. Details of the BRAVO thermonuclear accident that caused the exposure have been published, and a 1955 article in the Journal of the American Medical Association describing the acute medical effects in the exposed population remains a definitive and relevant description of events. Participation in the Marshall Islands Medical Program by the exposed Marshallese is voluntary. In the spring and fall of each year, medical surveillance is provided to exposed and unexposed cohorts. Examinations performed include: a cancer-related examination as defined by the American Society, an annual thyroid examination and thyroid function testing, serum prolactin testing looking for pituitary tumors, annual blood counts to include platelets, and evaluation for paraneoplastic evidence of neoplasms. This report details the medical program, medical findings, and thyroid surgery findings. Deaths (4 exposed and 10 nonexposed) that occurred during the reporting period are discussed. There is a mild but relatively consistent depression of neutrophil, lymphocyte, and platelet concentrations in the blood of the exposed population. This depression appears to be of no clinical significance. Thyroid hypofunction, either clinical or biochemical, has been documented as a consequence of radiation exposure in 14 exposed individuals. Previously, one other exposed person was diagnosed with basal cell carcinoma. During this reporting period, a thyroid nodule was identified in an individual who was in utero during the exposure. Upon pathologic review, the nodule was diagnosed as occult papillary carcinoma.

  16. Deuterium Retention in Beryllium Exposed to a 60kV Deuterium Beam ­ Consequences for Next Step Devices

    E-Print Network [OSTI]

    Deuterium Retention in Beryllium Exposed to a 60kV Deuterium Beam ­ Consequences for Next Step Devices

  17. Standard practice for evaluating absorptive solar receiver materials when exposed to conditions simulating stagnation in solar collectors with cover plates

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    1986-01-01T23:59:59.000Z

    Standard practice for evaluating absorptive solar receiver materials when exposed to conditions simulating stagnation in solar collectors with cover plates

  18. Maximizing Multiprocessor Performance with the SUIF Compiler Mary W. Hall y Jennifer M. Anderson Saman P. Amarasinghe

    E-Print Network [OSTI]

    Pratt, Vaughan

    Maximizing Multiprocessor Performance with the SUIF Compiler Mary W. Hall y Jennifer M. Anderson and NSF. Jennifer Anderson is currently a researcher with Digital Equipment's Western Research Lab. 1 #12

  19. Weak values and weak coupling maximizing the output of weak measurements

    SciTech Connect (OSTI)

    Di Lorenzo, Antonio, E-mail: dilorenzo.antonio@gmail.com

    2014-06-15T23:59:59.000Z

    In a weak measurement, the average output ?o? of a probe that measures an observable A{sup -hat} of a quantum system undergoing both a preparation in a state ?{sub i} and a postselection in a state E{sub f} is, to a good approximation, a function of the weak value A{sub w}=Tr[E{sub f}A{sup -hat} ?{sub i}]/Tr[E{sub f}?{sub i}], a complex number. For a fixed coupling ?, when the overlap Tr[E{sub f}?{sub i}] is very small, A{sub w} diverges, but ?o? stays finite, often tending to zero for symmetry reasons. This paper answers the questions: what is the weak value that maximizes the output for a fixed coupling? What is the coupling that maximizes the output for a fixed weak value? We derive equations for the optimal values of A{sub w} and ?, and provide the solutions. The results are independent of the dimensionality of the system, and they apply to a probe having a Hilbert space of arbitrary dimension. Using the Schrödinger–Robertson uncertainty relation, we demonstrate that, in an important case, the amplification ?o? cannot exceed the initial uncertainty ?{sub o} in the observable o{sup -hat}, we provide an upper limit for the more general case, and a strategy to obtain ?o???{sub o}. - Highlights: •We have provided a general framework to find the extremal values of a weak measurement. •We have derived the location of the extremal values in terms of preparation and postselection. •We have devised a maximization strategy going beyond the limit of the Schrödinger–Robertson relation.

  20. Second use of transportation batteries: Maximizing the value of batteries for transportation and grid services

    SciTech Connect (OSTI)

    Viswanathan, Vilayanur V.; Kintner-Meyer, Michael CW

    2010-09-30T23:59:59.000Z

    Plug-in hybrid electric vehicles (PHEVs) and electric vehicles (EVs) are expected to gain significant market share over the next decade. The economic viability for such vehicles is contingent upon the availability of cost-effective batteries with high power and energy density. For initial commercial success, government subsidies will be highly instrumental in allowing PHEVs to gain a foothold. However, in the long-term, for electric vehicles to be commercially viable, the economics have to be self-sustaining. Towards the end of battery life in the vehicle, the energy capacity left in the battery is not sufficient to provide the designed range for the vehicle. Typically, the automotive manufacturers indicated the need for battery replacement when the remaining energy capacity reaches 70-80%. There is still sufficient power (kW) and energy capacity (kWh) left in the battery to support various grid ancillary services such as balancing, spinning reserve, load following services. As renewable energy penetration increases, the need for such balancing services is expected to increase. This work explores optimality for the replacement of transportation batteries to be subsequently used for grid services. This analysis maximizes the value of an electric vehicle battery to be used as a transportation battery (in its first life) and then as a resource for providing grid services (in its second life). The results are presented across a range of key parameters, such as depth of discharge (DOD), number of batteries used over the life of the vehicle, battery life in vehicle, battery state of health (SOH) at end of life in vehicle and ancillary services rate. The results provide valuable insights for the automotive industry into maximizing the utility and the value of the vehicle batteries in an effort to either reduce the selling price of EVs and PHEVs or maximize the profitability of the emerging electrification of transportation.

  1. A comment on the construction of the maximal globally hyperbolic Cauchy development

    SciTech Connect (OSTI)

    Wong, Willie Wai-Yeung, E-mail: willie.wong@epfl.ch [École Polytechnique Fédérale de Lausanne, Lausanne 1015 (Switzerland)

    2013-11-15T23:59:59.000Z

    Under mild assumptions, we remove all traces of the axiom of choice from the construction of the maximal globally hyperbolic Cauchy development in general relativity. The construction relies on the notion of direct union manifolds, which we review. The construction given is very general: any physical theory with a suitable geometric representation (in particular all classical fields), and such that a strong notion of “local existence and uniqueness” of solutions for the corresponding initial value problem is available, is amenable to the same treatment.

  2. A review of "La Rochefoucauld par quatre chemins. Les Maximes et leurs ambivalence" by Eric Turcat

    E-Print Network [OSTI]

    Grele, Denis D.

    2014-01-01T23:59:59.000Z

    82 seventeenth-century news Eric Turcat. La Rochefoucauld par quatre chemins. Les Maximes et leurs ambivalence. Biblio 17, v. 206. Tübingen: Gunter Narr Verlag, 2013. 220 pp. ISBN 978-63-8233-6803-8. $65.91. Review by denis d. grélé, university...(s). For his part, Eric Turcat does not recoil from the challenge and offers in La Rochefoucauld par quatre chemins, not one but four possible methods of understanding apparent disparate fragments of thoughts. Each chapter of his book is devoted to one...

  3. Maximal tripartite entanglement between singlet-triplet qubits in quantum dots

    E-Print Network [OSTI]

    Tuukka Hiltunen; Ari Harju

    2013-10-24T23:59:59.000Z

    Singlet-triplet states in double quantum dots are promising realizations of qubits, and capacitive coupling can be used to create entanglement between these qubits. We propose an entangling three-qubit gate of singlet-triplet qubits in a triangular setup. Our simulations using a realistic microscopic model show that a maximally entangled Greenberger-Horne-Zeilinger state can be generated as the qubits are evolved under exchange. Furthermore, our analysis for the gate operation can be used to extract the actual experimental pulse sequence needed to realize this.

  4. Infrared scaling solutions beyond the Landau gauge: The maximally Abelian gauge and Abelian infrared dominance

    E-Print Network [OSTI]

    Markus Q. Huber; Reinhard Alkofer; Kai Schwenzer

    2011-03-01T23:59:59.000Z

    Functional equations like exact renormalization group and Dyson-Schwinger equations have contributed to a better understanding of non-perturbative phenomena in quantum field theories in terms of the underlying Green functions. In Yang-Mills theory especially the Landau gauge has been used, as it is the most accessible gauge for these methods. The growing understanding obtained in this gauge allows to proceed to other gauges in order to obtain more information about the relation of different realizations of the confinement mechanism. In the maximally Abelian gauge first results are very encouraging as a variant of Abelian infrared dominance is found: The Abelian part of the gauge field propagator is enhanced at low momenta and thereby dominates the dynamics in the infrared. Its role is therefore similar to that of the ghost propagator in the Landau gauge, where one denotes the corresponding phenomenon as ghost dominance. Also the ambiguity of two different types of solutions (decoupling and scaling) exists in both gauges. Here we present how the two solutions are related in the maximally Abelian gauge. The intricacy of the system of functional equations in this gauge required the development of some new tools and methods as, for example, the automated derivation of the equations by the program DoFun. We also present results for linear covariant and ghost anti-ghost symmetric gauges.

  5. Complete solution to a conjecture on the maximal energy of unicyclic graphs

    E-Print Network [OSTI]

    Huo, Bofeng; Shi, Yongtang

    2010-01-01T23:59:59.000Z

    For a given simple graph $G$, the energy of $G$ denoted by $E(G)$, is defined as the sum of the absolute values of all eigenvalues of its adjacency matrix. Let $P_n^{\\ell}$ be the unicyclic graph obtained by connecting a vertex of $C_\\ell$ with a leaf of $P_{n-\\ell}$\\,. In [G. Caporossi, D. Cvetkovi\\'c, I. Gutman, P. Hansen, Variable neighborhood search for extremal graphs. 2. Finding graphs with extremal energy, {\\it J. Chem. Inf. Comput. Sci.\\/} {\\bf 39} (1999) 984--996], Caporossi et al. conjectured that the unicyclic graph with maximal energy is $C_n$ if $n\\leq 7$ and $n=9,10,11,13,15$\\,, and $P_n^6$ for all other values of $n$. In this paper, by employing the Coulson integral formula and some knowledge of real analysis, especially by using certain combinatorial techniques, we completely solve this conjecture. However, it turns out that for $n=4$ the conjecture is not true, and $P_4^3$ should be the unicyclic graph with maximal energy.

  6. All reversible dynamics in maximally non-local theories are trivial

    E-Print Network [OSTI]

    Gross, David; Colbeck, Roger; Dahlsten, Oscar C O

    2009-01-01T23:59:59.000Z

    A remarkable feature of quantum theory is non-locality (i.e. the presence of correlations which violate Bell inequalities). However, quantum correlations are not maximally non-local, and it is natural to ask whether there are compelling reasons for rejecting theories in which stronger violations are possible. To shed light on this question, we consider post-quantum theories in which maximally non-local states (non-local boxes) occur. It has previously been conjectured that the set of dynamical transformations possible in such theories is severely limited. We settle the question affirmatively in the case of reversible dynamics, by completely characterizing all such transformations allowed in this setting. We find that the dynamical group is trivial, in the sense that it is generated solely by local operations and permutations of systems. In particular, no correlations can ever be created; non-local boxes cannot be prepared from product states (in other words, no analogues of entangling unitary operations exist...

  7. DISTRIBUTION OF MAXIMAL LUMINOSITY OF GALAXIES IN THE SLOAN DIGITAL SKY SURVEY

    SciTech Connect (OSTI)

    Taghizadeh-Popp, M.; Szalay, A. S. [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States); Ozogany, K.; Racz, Z. [Institute for Theoretical Physics-HAS, Eoetvoes University, Pazmany setany 1/a, 1117 Budapest (Hungary); Regoes, E., E-mail: mtaghiza@pha.jhu.edu [European Laboratory for Particle Physics (CERN), Geneva (Switzerland)

    2012-11-10T23:59:59.000Z

    Extreme value statistics is applied to the distribution of galaxy luminosities in the Sloan Digital Sky Survey. We analyze the DR8 Main Galaxy Sample (MGS), as well as the luminous red galaxies (LRGs). Maximal luminosities are sampled from batches consisting of elongated pencil beams in the radial direction of sight. For the MGS, results suggest a small and positive tail index {xi}, effectively ruling out the possibility of having a finite maximum cutoff luminosity, and implying that the luminosity distribution function may decay as a power law at the high-luminosity end. Assuming, however, {xi} = 0, a non-parametric comparison of the maximal luminosities with the Fisher-Tippett-Gumbel distribution (limit distribution for variables distributed by the Schechter fit) indicates a good agreement provided that uncertainties arising from both the finite batch size and the batch-size distribution are accounted for. For a volume-limited sample of LRGs, results show that they can be described as being the extremes of a luminosity distribution with an exponentially decaying tail, provided that the uncertainties related to batch-size distribution are taken care of.

  8. Medical status of Marshallese accidentally exposed to 1954 Bravo fallout radiation: January 1980-December 1982

    SciTech Connect (OSTI)

    Adams, W.H.; Harper, J.A.; Rittmaster, R.S.; Heotis, P.M.; Scott, W.A.

    1984-01-01T23:59:59.000Z

    This report updates, for 1980 through 1982, the results of continuing medical surveillance of a Marshallese population accidentally exposed to radioactive fallout in March 1954. The originally exposed Marshallese population comprised 64 persons on Rongelap Atoll who each received, on the average, an estimated 190 rads of absorbed external gamma radiation, 18 on Ailingnae Atoll who received 110 rads, and 159 on Utirik who received 11 rads. There were, in addition, 3 persons in utero on Rongelap, 1 person in utero on Ailingnae, and 8 persons in utero on Utirik who are considered exposed. The recipients of primary medical care include exposed and comparison populations as well as a rather large number of additional beneficiaries who are seen on a humanitarian basis of practical need and resource availability. In recent years, about 1400 people have been seen annually. This report, however, deals with four clearly defined groups: the remaining individuals who were exposed to radioactive fallout on Rongelap, Ailingnae, and Utirik in 1954 (including those in utero), and a comparison population of individuals from Rongelap who were unexposed. The number of persons now in each exposure category are 51, 12, 116, and 137, respectively. 100 references, 4 figures, 5 tables. (ACR)

  9. Hanford Site Air Operating Permit Application Supplemental Information [Sec 1 Thru 5] Vol 1 Thru 3 Appendices A Thru C

    SciTech Connect (OSTI)

    CURN, B.L.

    2000-05-01T23:59:59.000Z

    This report documents radionuclide air emissions from the Hanford Site in 1998 and the resulting effective dose equivalent to the maximally exposed individual (MEI) member of the public. The report has been prepared in accordance with the Code of Federal Regulations, Title 40, Protection of the Environment, Part 61, National Emission Standards for Hazardous Air Pollutants (40 CFR 61), Subpart H: ''National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities,'' and with the Washington Administrative Code Chapter 246247, Radiation Protection - Air Emissions. The federal regulations in 40 CFR 61, Subpart H, require the measurement and reporting of radionuclides emitted from Department of Energy facilities and the resulting offsite dose from those emissions. A standard of 10 mrem/yr effective dose equivalent (EDE) is imposed on them. The EDE to the MEI due to routine emissions in 1998 from Hanford Site point sources was 1.3 E-02 mrem (1.3 E-04 mSv). which is 0.13 percent of the federal standard. Chapter 246-247 of the Washington Administrative Code (WAC) requires the reporting of radionuclide emissions from all Department of Energy Hanford Site sources. The state has adopted into these regulations the 40 CFR 61 standard of 10 mrem/yr EDE. The EDE to the MEI attributable to diffuse and fugitive radionuclide air emissions from the Hanford Site in 1998 was 2.5 E-02 mrem (2.S E-04 mSv). This dose added to the dose from point sources gives a total for all sources of 3.8 E-02 mrem/yr (3.8 E-04 mSv) EDE. which is 0.38 percent of the 10 mrem/yr standard. An unplanned release on August 26, 1998, in the 300 Area of the Hanford Site resulted in a potential dose of 4.1 E-02 mrem to a hypothetical individual at the nearest point of public access to that area. This hypothetical individual was not the MEI since the wind direction on the day of the release was away from the MEI residence. The potential dose from the unplanned event was similar in magnitude to that from routine releases during 1998. Were the release from this unplanned event combined with routine releases, the total dose would be less than 1 percent of the 10 mrem/yr standard.

  10. Radionuclide Air Emissions Report for the Hanford Site Calendar year 1998

    SciTech Connect (OSTI)

    DIEDIKER, L.P.

    1999-06-15T23:59:59.000Z

    This report documents radionuclide air emissions from the Hanford Site in I998 and the resulting effective dose equivalent to the maximally exposed individual (MEI) member of the public. The report has been prepared in accordance with the Code of Federal Regulations, Title 40, Protection of the Environment, Part 61, National Emission Standards for Hazardous Air Pollutants (40 CFR SI), Subpart H, ''National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities,'' and with the Washington Administrative Code Chapter 246-247, Radiation Protection--Air Emissions. The federal regulations in 40 CFR 61, Subpart H; require the measurement and reporting of radionuclides emitted from Department of Energy facilities and the resulting offsite dose from those emissions. A standard of 10 mrem/yr effective dose equivalent (EDE) is imposed on them. The EDE to the MEI due to routine emissions in 1998 from Hanford Site point sources was 1.3 E-02 mrem (1.3 E-04 mSv), which is 0.13 percent of the federal standard. Chapter 246-247 of the Washington Administrative Code (WAC) requires the reporting of radionuclide emissions from all Department of Energy Hanford Site sources. The state has adopted into these regulations the 40 CFR 61 standard of 10 mrem/yr EDE. The EDE to the MEI attributable to diffuse and fugitive radionuclide air emissions from the Hanford Site in 1998 was 2.5 E-02 mrem (2.5 E-04 mSv). This dose added to the dose from point sources gives a total for all sources of 3.8 E-02 mrem/yr (3.8 E-04 mSv) EDE, which is 0.38 percent of the 10 mrem/yr standard. An unplanned release on August 26, 1998, in the 300 Area of the Hanford Site resulted in a potential dose of 4.1 E-02 mrem to a hypothetical individual at the nearest point of public access to that area. This hypothetical individual was not the MEI since the wind direction on the day of the release was away from the MEI residence. The potential dose from the unplanned event was similar in magnitude to that from routine releases during 1998. Were the release from this unplanned event combined with routine releases, the total dose would be less than 1 percent ofthe 10 mrem/yr standard.

  11. Characterization of measurement uncertainties using the correlations between local outcomes obtained from maximally entangled pairs

    E-Print Network [OSTI]

    Shota Kino; Taiki Nii; Holger F. Hofmann

    2015-02-23T23:59:59.000Z

    Joint measurements of non-commuting observables are characterized by unavoidable measurement uncertainties that can be described in terms of the error statistics for input states with well-defined values for the target observables. However, a complete characterization of measurement errors must include the correlations between the errors of the two observables. Here, we show that these correlations appear in the experimentally observable measurement statistics obtained by performing the joint measurement on maximally entangled pairs. For two-level systems, the results indicate that quantum theory requires imaginary correlations between the measurement errors of X and Y since these correlations are represented by the operator product XY=iZ in the measurement operators. Our analysis thus reveals a directly observable consequence of non-commutativity in the statistics of quantum measurements.

  12. Electron Self-energy in Pseudo-Hermitian Quantum Electrodynamics with a Maximal Mass M

    E-Print Network [OSTI]

    V. P. Neznamov

    2010-10-18T23:59:59.000Z

    The electron self-energy (self-mass) is calculated on the basis of the model of quantum field theory with maximal mass M, developed by V.G.Kadyshevsky et al. within the pseudo-Hermitian quantum electrodynamics in the second order of the perturbation theory. In theory, there is the natural cut-off of large transmitted momentum in intermediate states because of presence of the universal mass M. As a result, the electron self-mass is finite and depends on the transmitted maximum momentum. Two interpretations of the obtained results are possible at defined M and A. The first interpretation allows confirming quantitatively the old concept of elementary particle mass sources defined by interaction of particles with self-gauge fields. The second interpretation results in the possibility not to renormalize the mass (at least in the second order of perturbation theory) owing to the zero mass operator.

  13. Dimming LEDs with Phase-Cut Dimmers: The Specifier's Process for Maximizing Success

    SciTech Connect (OSTI)

    Miller, Naomi J.; Poplawski, Michael E.

    2013-10-01T23:59:59.000Z

    This report reviews how phase-cut dimmers work, how LEDs differ from the incandescent lamps that the dimmers were historically designed to control, and how these differences can lead to complications when trying to dim LEDs. Compatibility between a specific LED source and a specific phase-cut dimmer is often unknown and difficult to assess, and ensuring compatibility adds complexity to the design, specification, bidding, and construction observation phases for new buildings and major remodel projects. To maximize project success, this report provides both general guidance and step-by-step procedures for designing phase-controlled LED dimming on both new and existing projects, as well as real-world examples of how to use those procedures.

  14. Near Maximal Atmospheric Neutrino Mixing in Neutrino Mass Models with Two Texture Zeros

    E-Print Network [OSTI]

    S. Dev; Radha Raman Gautam; Lal Singh; Manmohan Gupta

    2014-08-05T23:59:59.000Z

    The implications of a large value of the effective Majorana neutrino mass for a class of two texture zero neutrino mass matrices have been studied in the flavor basis. It is found that these textures predict near maximal atmospheric neutrino mixing angle in the limit of large effective Majorana neutrino mass. It is noted that this prediction is independent of the values of solar and reactor neutrino mixing angles. We present the symmetry realization of these textures using the discrete cyclic group $Z_3$. It is found that the texture zeros realised in this work remain stable under renormalization group running of the neutrino mass matrix from the seesaw scale to the electroweak scale, at one loop level.

  15. Degradation of non-maximal entanglement of scalar and Dirac fields in non-inertial frames

    E-Print Network [OSTI]

    Qiyuan Pan; Jiliang Jing

    2008-02-09T23:59:59.000Z

    The entanglement between two modes of the free scalar and Dirac fields as seen by two relatively accelerated observers has been investigated. It is found that the same initial entanglement for an initial state parameter $\\alpha$ and its "normalized partner" $\\sqrt{1-\\alpha^{2}}$ will be degraded by the Unruh effect along two different trajectories except for the maximally entangled state, which just shows the inequivalence of the quantization for a free field in the Minkowski and Rindler coordinates. In the infinite acceleration limit the state doesn't have the distillable entanglement for any $\\alpha$ for the scalar field but always remains entangled to a degree which is dependent of $\\alpha$ for the Dirac field. It is also interesting to note that in this limit the mutual information equals to just half of the initially mutual information, which is independent of $\\alpha$ and the type of field.

  16. Maximizing the Value of Photovoltaic Installations on Schools in California: Choosing the Best Electricity Rates

    SciTech Connect (OSTI)

    Ong, S.; Denholm, P.

    2011-07-01T23:59:59.000Z

    Schools in California often have a choice between multiple electricity rate options. For schools with photovoltaic (PV) installations, choosing the right rate is essential to maximize the value of PV generation. The rate option that minimizes a school?s electricity expenses often does not remain the most economical choice after the school installs a PV system. The complex interaction between PV generation, building load, and rate structure makes determining the best rate a challenging task. This report evaluates 22 rate structures across three of California?s largest electric utilities--Pacific Gas and Electric Co. (PG&E), Southern California Edison (SCE), and San Diego Gas and Electric (SDG&E)--in order to identify common rate structure attributes that are favorable to PV installations.

  17. Quantum Ratchets on Maximally Uniform States in Phase Space: Semiclassical Full-Chaos Regime

    E-Print Network [OSTI]

    Itzhack Dana

    2008-10-10T23:59:59.000Z

    A generic kind of quantum chaotic ratchet is introduced, based on initial states that are \\emph{uniform} in phase space with the \\emph{maximal possible} resolution of one Planck cell. Unlike a classical phase-space uniform density, such a state usually carries a \\emph{nonzero} ratchet current, even in \\emph{symmetric} systems. This quantum ratchet effect basically emerges from the generic asymmetry of the state quasicoordinates in the Planck cell. It is shown, on the basis of exact results, general arguments, and extensive numerical evidence, that in a semiclassical full-chaos regime the variance of the current over all the states is nearly proportional to the chaotic-diffusion rate and to the square of the scaled Planck constant. Experimental realizations are suggested.

  18. Dynamic stability of running: The effects of speed and leg amputations on the maximal Lyapunov exponent

    SciTech Connect (OSTI)

    Look, Nicole [Department of Applied Mathematics, University of Colorado Boulder, Boulder, Colorado 80309 (United States)] [Department of Applied Mathematics, University of Colorado Boulder, Boulder, Colorado 80309 (United States); Arellano, Christopher J.; Grabowski, Alena M.; Kram, Rodger [Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado 80309 (United States)] [Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado 80309 (United States); McDermott, William J. [The Orthopedic Specialty Hospital, Murray, Utah 84107 (United States)] [The Orthopedic Specialty Hospital, Murray, Utah 84107 (United States); Bradley, Elizabeth [Department of Computer Science, University of Colorado Boulder, Boulder, Colorado 80309, USA and Santa Fe Institute, Santa Fe, New Mexico 87501 (United States)] [Department of Computer Science, University of Colorado Boulder, Boulder, Colorado 80309, USA and Santa Fe Institute, Santa Fe, New Mexico 87501 (United States)

    2013-12-15T23:59:59.000Z

    In this paper, we study dynamic stability during running, focusing on the effects of speed, and the use of a leg prosthesis. We compute and compare the maximal Lyapunov exponents of kinematic time-series data from subjects with and without unilateral transtibial amputations running at a wide range of speeds. We find that the dynamics of the affected leg with the running-specific prosthesis are less stable than the dynamics of the unaffected leg and also less stable than the biological legs of the non-amputee runners. Surprisingly, we find that the center-of-mass dynamics of runners with two intact biological legs are slightly less stable than those of runners with amputations. Our results suggest that while leg asymmetries may be associated with instability, runners may compensate for this effect by increased control of their center-of-mass dynamics.

  19. A convex approximation approach to Weighted Sum Rate Maximization of Multiuser MISO Interference Channel under outage constraints

    E-Print Network [OSTI]

    Li, Wei-Chiang; Lin, Che; Chi, Chong-Yung

    2010-01-01T23:59:59.000Z

    This paper considers weighted sum rate maximization of multiuser multiple-input single-output interference channel (MISO-IFC) under outage constraints. The outage-constrained weighted sum rate maximization problem is a nonconvex optimization problem and is difficult to solve. While it is possible to optimally deal with this problem in an exhaustive search manner by finding all the Pareto-optimal rate tuples in the (discretized) outage-constrained achievable rate region, this approach, however, suffers from a prohibitive computational complexity and is feasible only when the number of transmitter-receive pairs is small. In this paper, we propose a convex optimization based approximation method for efficiently handling the outage-constrained weighted sum rate maximization problem. The proposed approximation method consists of solving a sequence of convex optimization problems, and thus can be efficiently implemented by interior-point methods. Simulation results show that the proposed method can yield near-optim...

  20. Wind Farms in Regions Exposed to Tropical Cyclones Niels-Erik Clausen1

    E-Print Network [OSTI]

    Wind Farms in Regions Exposed to Tropical Cyclones Niels-Erik Clausen1 , niels Energy A/S, A.C. Meyers Vænge 9, DK-2450 Copenhagen SV, Denmark, Phone +45 44 80 65 71 3 Tripod Wind 6001 Summary The present paper analyses the design basis of wind farms to be established in regions

  1. Performance of a Polymer Electrolyte Membrane Fuel Cell Exposed to Transient CO Concentrations

    E-Print Network [OSTI]

    Van Zee, John W.

    . Recently, the decay and recovery of fuel cell performance in response to step changes in the level of COPerformance of a Polymer Electrolyte Membrane Fuel Cell Exposed to Transient CO Concentrations fuel cell PEMFC . The data include relatively high 500 and 3000 ppm CO levels at 70°C cell temperature

  2. Author's personal copy Digestive utilization of ozone-exposed forage by rabbits (Oryctolagus cuniculus)

    E-Print Network [OSTI]

    Ditchkoff, Steve

    Author's personal copy Digestive utilization of ozone-exposed forage by rabbits (Oryctolagus Digestibility Forage quality Herbivore nutrition Phenolics Rabbits Southern Piedmont a b s t r a c t A mixture) in a digestibility experiment. Forages and feed refusals were analyzed for concentrations of total cell wall

  3. Maternal Transfer of Contaminants and Reduced Reproductive Success of Southern Toads (Bufo [Anaxyrus] terrestris) Exposed to

    E-Print Network [OSTI]

    Hopkins, William A.

    ) residing in two locations: (1) an active coal combustion waste (CCW) disposal basin and adjacent 40-ha (Gastrophryne carolinensis) collected from a coal ash settling basin accumulated and transferred selenium (Se [Anaxyrus] terrestris) Exposed to Coal Combustion Waste Brian S. Metts,, * Kurt A. Buhlmann, Tracey D

  4. Detrimental Effects Associated with Trace Element Uptake in Lake Chubsuckers (Erimyzon sucetta) Exposed to Polluted Sediments

    E-Print Network [OSTI]

    Hopkins, William A.

    February 2000 Abstract. Lake chubsuckers (Erimyzon sucetta) were exposed to coal ash­polluted sediments were eliminated from Belews Lake, NC, after coal fly ash pond effluent was discharged problems induced by pollutant disposal practices, the power plant ceased discharge of ash pond effluent

  5. Modeling of a GSM-R receiving chain exposed to transient IEMIs

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Modeling of a GSM-R receiving chain exposed to transient IEMIs Souheir Mili, Virginie Deniau, DavidMagnetic Interference (IEMI) threats. In this paper we investigate GSM-R vulnerability to IEMI. These IEMIs consist- Transient (IEMI); GSM-R; vulnerability; BER. I. INTRODUCTION GSM-R is a European railway communication

  6. The Caledonide Orogen in the Nordic countries is exposed in Norway, western Sweden, westernmost Fin-

    E-Print Network [OSTI]

    Fossen, Haakon

    The Caledonide Orogen in the Nordic countries is exposed in Norway, western Sweden, westernmost Fin-age basement. In northernmost Norway, the NE-trending Caledonian thrust front trun- cates the NW and north- eastern Greenland; it continues northwards from northern Norway, across the Barents Shelf

  7. Rapid degradation of CdSe/ZnS colloidal quantum dots exposed to gamma irradiation

    E-Print Network [OSTI]

    New Mexico, University of

    Rapid degradation of CdSe/ZnS colloidal quantum dots exposed to gamma irradiation Nathan J. Withers are reported. Optical degradation is evaluated by tracking the dependence of photoluminescence intensity on irradiation dose. CdSe/ZnS quantum dots show poor radiation hardness, and severely degrade after less than 20

  8. Aging of HDPE Pipes Exposed to Diesel Lubricant Amelia H. U. Torres1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Aging of HDPE Pipes Exposed to Diesel Lubricant Amelia H. U. Torres1 , José R. M. d'Almeida1 behavior of high-density polyethylene pipes by exposure to a diesel lubricant were investigated that diesel, which can be regarded as a model fluid to analyze the effects caused by aromatic unities present

  9. Growth and crown architecture of two aspen genotypes exposed to interacting ozone and carbon dioxide

    E-Print Network [OSTI]

    Growth and crown architecture of two aspen genotypes exposed to interacting ozone and carbon To study the impact of ozone (O3) and O3 plus CO2 on aspen growth, we planted two trembling aspen clones growth and modified crown architecture of both aspen clones. Ozone exposure decreased leaf, stem, branch

  10. Modelling dynamics of samples exposed to free-electron-laser radiation with Boltzmann equations

    E-Print Network [OSTI]

    Beata Ziaja; Antonio R. B. de Castro; Edgar Weckert; Thomas Moeller

    2005-12-20T23:59:59.000Z

    We apply Boltzmann equations for modelling the radiation damage in samples irradiated by photons from free electron laser (FEL). We test this method in a study case of a spherically symmetric xenon cluster irradiated with VUV FEL photons. The results obtained demonstrate the potential of the Boltzmann method for describing the complex and non-equilibrium dynamics of samples exposed to FEL radiation.

  11. of a brownian ratchet. Thermal fluctuations of the flexible actin filaments expose the tip

    E-Print Network [OSTI]

    Ahissar, Ehud

    of a brownian ratchet. Thermal fluctuations of the flexible actin filaments expose the tip long enough for a new monomer to attach. Once the tip springs back, it ratchets the membrane forward by the length of one monomer. Brownian ratchets have found a life of their own in the physics literature

  12. HDR IMAGE CONSTRUCTION FROM MULTI-EXPOSED STEREO LDR IMAGES Ning Sun, Hassan Mansour, Rabab Ward

    E-Print Network [OSTI]

    Mansour, Hassan

    HDR IMAGE CONSTRUCTION FROM MULTI-EXPOSED STEREO LDR IMAGES Ning Sun, Hassan Mansour, Rabab Ward algorithms. Index Terms-- High dynamic range imaging, stereo matching. 1. INTRODUCTION Typical CCD or CMOS a long time to capture the full dynamic range. Therefore, there is a need for low cost solutions that can

  13. Histopathological changes in ewe lambs exposed to prolonged diet on lucerne

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Short note Histopathological changes in ewe lambs exposed to prolonged diet on lucerne M Barberan J during nine months on lucerne as compared with 10 controls reared on ryegrass. These changes consisted. The mammary glands of lambs reared on lucerne were significantly heavier and showed secretory activity

  14. Thermal Performance of Exposed Composed Roofs in Very Hot Dry Desert Region in Egypt (Toshky)

    E-Print Network [OSTI]

    Khalil, M. H.; Sheble, S.; Morsey, M. S.; Fakhry, S.

    2010-01-01T23:59:59.000Z

    is considered the major part of the building envelop which exposed to high thermal load due to the high solar intensity and high outdoor air temperature through summer season which reach to 6 months. In Egypt the thermal effect of roof is increased as one go...

  15. Guidance for Controlling Potential Risks to Workers Exposed to Class B Biosolids

    E-Print Network [OSTI]

    Guidance for Controlling Potential Risks to Workers Exposed to Class B Biosolids This guidance is intended only for controlling health risks to workers from Class B biosolids during handling and land;1 Introduction Biosolids are the organic residues resulting from the treatment of commercial, industrial

  16. Decreased levels of CXC-chemokines in serum of benzene-exposed workers identified by

    E-Print Network [OSTI]

    California at Berkeley, University of

    Decreased levels of CXC-chemokines in serum of benzene-exposed workers identified by array (received for review October 3, 2004) Benzene is an important industrial chemical and environmental contaminant that causes leukemia. To obtain mechanistic insight into benzene's mechanism of action, we

  17. Fish Embryos Exposed to Oil From BP Spill Develop Deformities, a Study Finds

    E-Print Network [OSTI]

    Grosell, Martin

    Fish Embryos Exposed to Oil From BP Spill Develop Deformities, a Study Finds By MICHAEL WINESMARCH Horizon spill developed heart and other deformities that would probably kill some of the developing fish assessment of damages for the disaster that will be borne by BP, which operated the oil platform in the Gulf

  18. Caspase Activation in Hair Cells of the Mouse Utricle Exposed to Neomycin

    E-Print Network [OSTI]

    Rubel, Edwin

    Caspase Activation in Hair Cells of the Mouse Utricle Exposed to Neomycin Lisa L. Cunningham, Alan exposure results in the apoptotic destruction of auditory and vestibular hair cells. This ototoxic hair, immunohistochemistry, and specific caspase inhibitors to determine which caspases are activated in the hair cells

  19. Mei-Wei Cheng CEO Siemens North East Asia

    E-Print Network [OSTI]

    Lin, Xiaodong

    Kong. He was a Corporate Vice President of General Electric Co. and Chairman and CEO of GE (China) Ltd President of Ford Motor Company. Cheng joined Ford in 1998 from General Electric Corporation where he

  20. Amsterdam, 2 mei 2013 Geacht College van Bestuur,

    E-Print Network [OSTI]

    van Rooij, Robert

    investeren in een "carbon bubble", die weinig waard zal blijken te zijn. Geen goede investering dus.a. Unburnable Carbon, Carbon Tracker, 2012. #12;Daarnaast vragen wij aan jullie om als HvA en UvA aan

  1. HEURISTIC SEARCH IN DATA BASE SYSTEMS Ru-Mei Kung

    E-Print Network [OSTI]

    California at Irvine, University of

    path search problems. An expert system can employ this extended DBMS to pro- vide unified management. On large data sets, a DBMS is a practical necessity; hence, expert systems for such data sets must act function from such application programs into the DBMS. Common function can This research was sponsored

  2. CURRICULUM VITAE Nov. 2008 NAME: Albert Mei-chu Cheh

    E-Print Network [OSTI]

    Lansky, Joshua

    and repair) Sabbatical leaves 1987, 1993-94 and 2000-2001 - Laboratory of Bioorganic Chemistry, NIDDK, NIH.M. Chang, eds. CRC Press, Boca Raton, FL, pp. 61-76 (1980). 7. Cheh, A.M.*, Skochdopole, J., Koski, P

  3. MEI~ORAXKJM POR k'HE OFFICER IN CHARGE:

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling CorpNewCF INDUSTRIES,L? .-I I2MEIIORANDUM TO:-

  4. A REMARK ON THE HOMOTOPY EQUIVALENCE Abstract. Being a maximal compact subgroup of SLn C, SUn is

    E-Print Network [OSTI]

    Souto, Juan

    A REMARK ON THE HOMOTOPY EQUIVALENCE SUn SLn C JUAN SOUTO Abstract. Being a maximal compact subgroup of SLn C, SUn is a deformation retract of the former group. In this note we prove that, for sufficiently large n, there is no retraction of SLn C to SUn which preserves commutativity. 1. Introduction

  5. Note on helicity balance of the Galerkin method for the 3D NavierStokes equations Maxim Olshanskii a,1

    E-Print Network [OSTI]

    Olshanskii, Maxim A.

    , United States a r t i c l e i n f o Article history: Received 27 July 2009 Received in revised form 17 scheme. However, in contrast to the energy balance, the helicity balance does not hold in the usual wayNote on helicity balance of the Galerkin method for the 3D Navier­Stokes equations Maxim Olshanskii

  6. Optimal fracture treatment design for dry gas wells maximizes well performance in the presence of non-Darcy flow effects

    E-Print Network [OSTI]

    Lopez Hernandez, Henry De Jesus

    2004-11-15T23:59:59.000Z

    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 2004 Major Subject: Petroleum Engineering...) _______________________________ Guy L. Curry (Member) _______________________________ Stephen A. Holditch (Head of Department) August 2004 Major Subject: Petroleum Engineering iii ABSTRACT Optimal Fracture Treatment Design for Dry Gas Wells Maximizes...

  7. Directional Sensor Control for Maximizing Information Gain Shankarachary Ragia, Hans D. Mittelmannb, and Edwin K. P. Chonga

    E-Print Network [OSTI]

    Mittelmann, Hans D.

    , infrared sensors, and ultrasound sensors. These sensors are becoming increasingly important due to a wide locations are evaluated. Our goal is to assign each sensor to a particular direction such that the overallDirectional Sensor Control for Maximizing Information Gain Shankarachary Ragia, Hans D. Mittelmannb

  8. 306 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 25, NO. 2, FEBRUARY 2007 Lifetime Maximization via Cooperative Nodes and

    E-Print Network [OSTI]

    Liu, K. J. Ray

    locations and energy levels among distributed nodes. First, a lifetime maximization problem via cooperative is with the Department of Electrical and Computer Engineer- ing and the Institute for Systems Research, University of Maryland, College Park, MD 20742 USA (email: kjrliu@eng.umd.edu). Z. Han is with the Department

  9. Maximal energy that can be converted by a dielectric elastomer generator Soo Jin Adrian Koh,1,2

    E-Print Network [OSTI]

    Suo, Zhigang

    generators have been designed to harvest energy from walking,5,6 ocean waves,7 wind, and combustion.8Maximal energy that can be converted by a dielectric elastomer generator Soo Jin Adrian Koh,1 2009 Mechanical energy can be converted to electrical energy by using a dielectric elastomer generator

  10. On-Line Thermal Barrier Coating Monitoring for Real-Time Failure Protection and Life Maximization

    SciTech Connect (OSTI)

    Dennis H. LeMieux

    2005-04-01T23:59:59.000Z

    Under the sponsorship of the U. S. Department of Energy's National Energy Laboratory, Siemens Westinghouse Power Corporation proposes a four year program titled, ''On-Line Thermal Barrier Coating (TBC) Monitor for Real-Time Failure Protection and Life Maximization'', to develop, build and install the first generation of an on-line TBC monitoring system for use on land-based advanced gas turbines (AGT). Federal deregulation in electric power generation has accelerated power plant owner's demand for improved reliability availability maintainability (RAM) of the land-based advanced gas turbines. As a result, firing temperatures have been increased substantially in the advanced turbine engines, and the TBCs have been developed for maximum protection and life of all critical engine components operating at these higher temperatures. Losing TBC protection can therefore accelerate the degradation of substrate components materials and eventually lead to a premature failure of critical component and costly unscheduled power outages. This program seeks to substantially improve the operating life of high cost gas turbine components using TBC; thereby, lowering the cost of maintenance leading to lower cost of electricity. Siemens Westinghouse Power Corporation has teamed with Indigo Systems, a supplier of state-of-the-art infrared camera systems, and Wayne State University, a leading research organization in the field of infrared non-destructive examination (NDE), to complete the program.

  11. Non-Abelian black holes in D=5 maximal gauged supergravity

    SciTech Connect (OSTI)

    Cvetic, M. [Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States); Lue, H. [George and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A and M University, College Station, Texas 77843-4242 (United States); Division of Applied Mathematics and Theoretical Physics, China Institute for Advanced Study, Central University of Finance and Economics, Beijing, 100081 (China); Pope, C. N. [George and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A and M University, College Station, Texas 77843-4242 (United States); DAMTP, Centre for Mathematical Sciences, Cambridge University, Wilberforce Road, Cambridge CB3 OWA (United Kingdom)

    2010-02-15T23:59:59.000Z

    We investigate static non-Abelian black hole solutions of anti-de Sitter (AdS) Einstein-Yang-Mills-dilaton gravity, which is obtained as a consistent truncation of five-dimensional maximal gauged supergravity. If the dilaton is (consistently) set to zero, the remaining equations of motion, with a spherically-symmetric ansatz, may be derived from a superpotential. The associated first-order equations admit an explicit solution supported by a non-Abelian SU(2) gauge potential, which has a logarithmically growing mass term. In an extremal limit the horizon geometry becomes AdS{sub 2}xS{sup 3}. If the dilaton is also excited, the equations of motion cannot easily be solved explicitly, but we obtain the asymptotic form of the more general non-Abelian black holes in this case. An alternative consistent truncation, in which the Yang-Mills fields are set to zero, also admits a description in terms of a superpotential. This allows us to construct explicit wormhole solutions (neutral spherically-symmetric domain walls). These solutions may be generalized to dimensions other than five.

  12. Maximizing Spectral Flux from Self-Seeding Hard X-ray FELs

    E-Print Network [OSTI]

    Yang, Xi

    2013-01-01T23:59:59.000Z

    Fully coherent x-rays can be generated by self-seeding x-ray free-electron lasers (XFELs). Self-seeding by a forward Bragg diffraction (FBD) monochromator has been recently proposed [1] and demonstrated [2]. Characteristic time To of FBD determines the power, spectral, and time characteristics of the FBD seed [3]. Here we show that for a given electron bunch with duration sigma_e the spectral flux of the self-seeding XFEL can be maximized, and the spectral bandwidth can be respectively minimized by choosing To ~ sigma_e/pi and by optimizing the electron bunch delay tau_e. The choices of To and tau_e are not unique. In all cases, the maximum value of the spectral flux and the minimum bandwidth are primarily determined by sigma_e. Two-color seeding takes place To >> sigma_e/\\pi. The studies are performed, for a Gaussian electron bunch distribution with the parameters, close to those used in the short-bunch (sigma_e ~ 5 fs) and long-bunch (sigma_e ~ 20 fs) operation modes of the LCLS XFEL.

  13. Finding the quantum thermoelectric with maximal efficiency and minimal entropy production at given power output

    E-Print Network [OSTI]

    Robert S. Whitney

    2015-03-16T23:59:59.000Z

    We investigate the nonlinear scattering theory for quantum systems with strong Seebeck and Peltier effects, and consider their use as heat-engines and refrigerators with finite power outputs. This article gives detailed derivations of the results summarized in Phys. Rev. Lett. 112, 130601 (2014). It shows how to use the scattering theory to find (i) the quantum thermoelectric with maximum possible power output, and (ii) the quantum thermoelectric with maximum efficiency at given power output. The latter corresponds to a minimal entropy production at that power output. These quantities are of quantum origin since they depend on system size over electronic wavelength, and so have no analogue in classical thermodynamics. The maximal efficiency coincides with Carnot efficiency at zero power output, but decreases with increasing power output. This gives a fundamental lower bound on entropy production, which means that reversibility (in the thermodynamic sense) is impossible for finite power output. The suppression of efficiency by (nonlinear) phonon and photon effects is addressed in detail; when these effects are strong, maximum efficiency coincides with maximum power. Finally, we show in particular limits (typically without magnetic fields) that relaxation within the quantum system does not allow the system to exceed the bounds derived for relaxation-free systems, however, a general proof of this remains elusive.

  14. Research needs to maximize economic producibility of the domestic oil resource

    SciTech Connect (OSTI)

    Tham, M.K.; Burchfield, T.; Chung, Ting-Horng; Lorenz, P.; Bryant, R.; Sarathi, P.; Chang, Ming Ming; Jackson, S.; Tomutsa, L. (National Inst. for Petroleum and Energy Research, Bartlesville, OK (United States)); Dauben, D.L. (K and A Energy Consultants, Inc., Tulsa, OK (United States))

    1991-10-01T23:59:59.000Z

    NIPER was contracted by the US Department of Energy Bartlesville (Okla.) Project Office (DOE/BPO) to identify research needs to increase production of the domestic oil resource, and K A Energy Consultants, Inc. was subcontracted to review EOR field projects. This report summarizes the findings of that investigation. Professional society and trade journals, DOE reports, dissertations, and patent literature were reviewed to determine the state-of-the-art of enhanced oil recovery (EOR) and drilling technologies and the constraints to wider application of these technologies. The impacts of EOR on the environment and the constraints to the application of EOR due to environmental regulations were also reviewed. A review of well documented EOR field projects showed that in addition to the technical constraints, management factors also contributed to the lower-than-predicted oil recovery in some of the projects reviewed. DOE-sponsored projects were reviewed, and the achievements by these projects and the constraints which these projects were designed to overcome were also identified. Methods of technology transfer utilized by the DOE were reviewed, and several recommendations for future technology transfer were made. Finally, several research areas were identified and recommended to maximize economic producibility of the domestic oil resource. 14 figs., 41 tabs.

  15. Medical status of Marshallese accidentally exposed to 1954 Bravo fallout radiation, January 1983-December 1984

    SciTech Connect (OSTI)

    Adams, W.H.; Engle, J.R.; Harper, J.A.; Heotis, P.M.; Scott, W.A.

    1986-01-01T23:59:59.000Z

    March 1, 1984, was the 30th anniversary of the Bravo thermonuclear test that resulted in the accidental exposure of the populations of Rongelap and Utirik atolls to radioactive fallout. The chronicling of the medical events resulting from that exposure is continued in this report, which covers the period from January 1983 through December 1984. An updated listing of all relevant publications from the Medical Department Brookhaven National Laboratory, is presented in the Reference Section. Thirty years of observation continue to show no detectable increase in mortality in the exposed population as a result of that exposure. The survival curves of the high-exposure Rongelap group, the low-exposure Utirik population, and an unexposed group of Rongelap people matched by age and sex to the exposed Rongelap group in 1957 continue to be similar. 89 refs., 2 figs., 6 tabs.

  16. Radionuclide Air Emission Report for 2009

    SciTech Connect (OSTI)

    Wahl, Linnea

    2010-06-01T23:59:59.000Z

    Berkeley Lab operates facilities where radionuclides are handled and stored. These facilities are subject to the EPA radioactive air emission regulations in 40CFR61, Subpart H (EPA 1989). Radionuclides may be emitted from stacks or vents on buildings where radionuclide production or use is authorized or they may be emitted as diffuse sources. In 2009, all Berkeley Lab sources were minor sources of radionuclides (sources resulting in a potential dose of less than 0.1 mrem/yr [0.001 mSv/yr]). These minor sources included more than 100 stack sources and one source of diffuse emissions. There were no unplanned emissions from the Berkeley Lab site. Emissions from minor sources (stacks and diffuse emissions) either were measured by sampling or monitoring or were calculated based on quantities used, received for use, or produced during the year. Using measured and calculated emissions, and building-specific and common parameters, Laboratory personnel applied the EPA-approved computer code, CAP88-PC, to calculate the effective dose equivalent to the maximally exposed individual (MEI). The effective dose equivalent from all sources at Berkeley Lab in 2009 is 7.0 x 10{sup -3} mrem/yr (7.0 x 10{sup -5} mSv/yr) to the MEI, well below the 10 mrem/yr (0.1 mSv/yr) dose standard. The location of the MEI is at the University of California (UC) Lawrence Hall of Science, a public science museum about 1500 ft (460 m) east of Berkeley Lab's Building 56. The estimated collective effective dose equivalent to persons living within 50 mi (80 km) of Berkeley Lab is 1.5 x 10{sup -1} person-rem (1.5 x 10{sup -3} person-Sv) attributable to the Lab's airborne emissions in 2009.

  17. Radionuclide Air Emission Report for 2007

    SciTech Connect (OSTI)

    Wahl, Linnea; Wahl, Linnea

    2008-06-13T23:59:59.000Z

    Berkeley Lab operates facilities where radionuclides are handled and stored. These facilities are subject to the U.S. Environmental Protection Agency (EPA) radioactive air emission regulations in Code of Federal Regulations (CFR) Title 40, Part 61, Subpart H (EPA 1989). The EPA regulates radionuclide emissions that may be released from stacks or vents on buildings where radionuclide production or use is authorized or that may be emitted as diffuse sources. In 2007, all Berkeley Lab sources were minor stack or building emissions sources of radionuclides (sources resulting in a potential dose of less than 0.1 mrem/yr [0.001 mSv/yr]), there were no diffuse emissions, and there were no unplanned emissions. Emissions from minor sources either were measured by sampling or monitoring or were calculated based on quantities received for use or produced during the year. Using measured and calculated emissions, and building-specific and common parameters, Laboratory personnel applied the EPA-approved computer code, CAP88-PC, Version 3.0, to calculate the effective dose equivalent to the maximally exposed individual (MEI). The effective dose equivalent from all sources at Berkeley Lab in 2007 is 1.2 x 10{sup -2} mrem/yr (1.2 x 10{sup -4} mSv/yr) to the MEI, well below the 10 mrem/yr (0.1 mSv/yr) EPA dose standard. The location of the MEI is at the University of California (UC) Lawrence Hall of Science, a public science museum about 1500 ft (460 m) east of Berkeley Lab's Building 56. The estimated collective effective dose equivalent to persons living within 50 mi (80 km) of Berkeley Lab is 3.1 x 10{sup -1} person-rem (3.1 x 10{sup -3} person-Sv) attributable to the Lab's airborne emissions in 2007.

  18. Radionuclide Air Emission Report for 2008

    SciTech Connect (OSTI)

    Wahl, Linnea

    2009-05-21T23:59:59.000Z

    Berkeley Lab operates facilities where radionuclides are handled and stored. These facilities are subject to the U.S. Environmental Protection Agency (EPA) radioactive air emission regulations in Code of Federal Regulations (CFR) Title 40, Part 61, Subpart H (EPA 1989). Radionuclides may be emitted from stacks or vents on buildings where radionuclide production or use is authorized or they may be emitted as diffuse sources. In 2008, all Berkeley Lab sources were minor sources of radionuclides (sources resulting in a potential dose of less than 0.1 mrem/yr [0.001 mSv/yr]). These minor sources include more than 100 stack sources and one source of diffuse emissions. There were no unplanned emissions from the Berkeley Lab site. Emissions from minor sources (stacks and diffuse emissions) either were measured by sampling or monitoring or were calculated based on quantities used, received for use, or produced during the year. Using measured and calculated emissions, and building-specific and common parameters, Laboratory personnel applied the EPA-approved computer code, CAP88-PC, to calculate the effective dose equivalent to the maximally exposed individual (MEI). The effective dose equivalent from all sources at Berkeley Lab in 2008 is 5.2 x 10{sup -3} mrem/yr (5.2 x 10{sup -5} mSv/yr) to the MEI, well below the 10 mrem/yr (0.1 mSv/yr) dose standard. The location of the MEI is at the University of California (UC) Lawrence Hall of Science, a public science museum about 1500 ft (460 m) east of Berkeley Lab's Building 56. The estimated collective effective dose equivalent to persons living within 50 mi (80 km) of Berkeley Lab is 1.1 x 10{sup -1} person-rem (1.1 x 10{sup -3} person-Sv) attributable to the Lab's airborne emissions in 2008.

  19. Radionuclide Air Emissions Report for the Hanford Site Calendar Year 1999

    SciTech Connect (OSTI)

    ROKKAN, D.J.

    2000-06-01T23:59:59.000Z

    This report documents radionuclide air emissions from the US. Department of Energy (DOE) Hanford Site in 1999 and the resulting effective dose equivalent to the maximally exposed individual (MEI) member of the public. The report has been prepared in accordance with the Code of Federal Regulations (CFR). Title 40, Protection of the Environment, Part 61. National Emission Standards for Hazardous Air Pollutants, Subpart H, ''National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities'', and with the Washington Administrative Code (WAC) Chapter 246-247. Radiation Protection-Air Emissions. The federal regulations in Subpart H of 40 CFR 61 require the measurement and reporting of radionuclides emitted from US. Department of Energy (DOE) facilities and the resulting offsite dose from those emissions. A standard of 10 mrem/yr effective dose equivalent (EDE) is imposed on them. The EDE to the MEI due to routine emissions in 1999 from Hanford Site point sources was 0.029 mrem (2.9 E-04 mSv), which is less than 0.3 percent of the federal standard. WAC 246-247 requires the reporting of radionuclide emissions from all Hanford Site sources, during routine as well as nonroutine operations. The state has adopted the 40 CFR 61 standard of 10 mrem/yr EDE into their regulations. The state further requires that the EDE to the MEI be calculated not only from point source emissions but also from diffuse and fugitive sources of emissions. The EDE from diffuse and fugitive emissions at the Hanford Site in 1999 was 0.039 mrem (3.9 E-04 mSv) EDE. The total dose from point sources and from diffuse and fugitive sources of radionuclide emissions during all operating conditions in 1999 was 0.068 mrem (6.8 E-04 mSv) EDE, which is less than 0.7 percent of the state standard.

  20. Mechanical properties and corrosion behavior of materials exposed to an experimental, atmospheric fluidized-bed combustor

    SciTech Connect (OSTI)

    Ganesan, P.; Sagues, A.; Sethi, V.

    1984-06-01T23:59:59.000Z

    A joint materials test program developed by the Institute for Mining and Minerals Research (IMMR) and the Tennessee Valley Authority (TVA) involved the postexposure mechanical properties and corrosion behavior of candidate structural materials in an experimental, atmospheric fluidized-bed combustor (AFBC). This combustor was operated by Accurex Corporation at Research Triangle Park, North Carolina, under the direction of TVA. The materials studied were Type 304, Type 310, and INCOLOY alloy 800 in the form of disc coupons with and without crevice configurations. Type 304 was also used for mechanical property measurements. The alloys were exposed to the combustor environment at about840/sup 0/C for approximately 330 hours. The ranking in terms of decreasing weight loss was: (1) Type 304, (2) Type 310, and (3) INCOLOY alloy 800. The presence of tight crevices did not enhance the corrosion rate. In addition, the corrosion rates, based on the weight loss (typically 1 to 6 mpy), indicated that the alloys performed reasonably well when considering materials wastage. However, optical microscopy observations showed intergranular corrosion penetration in INCOLOY alloy 800 and Type 304. The mechanical properties of Type 304 were inferior to the unexposed alloy. A comparison of the data obtained from the combustor-exposed 304ss tensile samples with data from control samples exposed in vacuum to a similar thermal history indicated that the chemistry of the AFBC environment did not play a major role in the observed degradation of the mechanical properties.

  1. Radionuclide air emissions report for the Hanford site calendar year 1995

    SciTech Connect (OSTI)

    Gleckler, B.P., Westinghouse Hanford

    1996-06-26T23:59:59.000Z

    This report documents radionuclide air emissions from the Hanford Site in 1995, and the resulting effective dose equivalent (FDE) to the maximally exposed member of the public, referred to as the `MEI.` The report has been prepared and will be submitted in accordance with reporting requirements in the Code of Federal Regulations, Title 40, Protection of the Environment, Part 61, `National Emissions Standards for Hazardous Air Pollutants,` Subpart H, `National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities.` This report has also been prepared for and will be submitted in accordance with the reporting requirements of the Washington Administrative Code Chapter 246-247, `Radiation Protection-Air Emissions.`

  2. Site-Specific Reference Person Parameters and Derived Concentration Standards for the Savannah River Site

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

    Stone, Daniel K.; Higley, Kathryn A.; Jannik, G. Timothy

    2014-01-01T23:59:59.000Z

    The U.S. Department of Energy Order 458.1 states that the compliance with the 1 mSv annual dose constraint to a member of the public may be demonstrated by calculating dose to the maximally exposed individual (MEI) or to a representative person. Historically, the MEI concept was used for dose compliance at the Savannah River Site (SRS) using adult dose coefficients and adult male usage parameters. For future compliance, SRS plans to use the representative person concept for dose estimates to members of the public. The representative person dose will be based on the reference person dose coefficients from the U.S.more »DOE Derived Concentration Technical Standard and on usage parameters specific to SRS for the reference and typical person. Usage parameters and dose coefficients were determined for inhalation, ingestion and external exposure pathways. The parameters for the representative person were used to calculate and tabulate SRS-specific derived concentration standards (DCSs) for the pathways not included in DOE-STD-1196-2011.« less

  3. Radioactive air emissions notice of construction for deactivation of the PUREX storage tunnel number 2

    SciTech Connect (OSTI)

    JOHNSON, R.E.

    1999-10-11T23:59:59.000Z

    The Plutonium-Uranium Extraction (PUREX) Plant Storage Tunnel Number 2 (hereafter referred to as the PUREX Tunnel) was built in 1964. Since that time, the PUREX Tunnel has been used for storage of radioactive and mixed waste. In 1991, the PUREX Plant ceased operations and was transitioned to deactivation. The PUREX Tunnel continued to receive PUREX Plant waste material for storage during transition activities. Before 1995, a decision was made to store radioactive and mixed waste in the PUREX Tunnel generated from other onsite sources, on a case-by-case basis. This notice of construction (NOC) describes the activities associated with the reactivation of the PUREX Tunnel ventilation system and the transfer of up to 3.5 million curies (MCi) of radioactive waste to the PUREX Tunnel from any location on the Hanford Site. The unabated total effective dose equivalent (TEDE) estimated for the hypothetical offsite maximally exposed individual (MEI) is 5.6 E-2 millirem (mrem). The abated TEDE conservatively is estimated to account for 1.9 E-5 mrem to the MEI. The following text provides information requirements of Appendix A of Washington Administrative Code (WAC) 246-247 (requirements 1 through 18).

  4. Sequim Site Radionuclide Air Emissions Report for Calendar Year 2012

    SciTech Connect (OSTI)

    Snyder, Sandra F.; Barnett, J. M.; Gervais, Todd L.

    2013-04-01T23:59:59.000Z

    This report is prepared to document compliance with the Code of Federal Regulations (CFR), Title 40, Protection of the Environment, Part 61, National Emission Standards for Hazardous Air Pollutants (NESHAP), Subpart H, National Emission Standards for Emissions of Radionuclides Other than Radon from Department of Energy Facilities and ashington Administrative Code (WAC) Chapter 246-247, Radiation Protection Air Emissions. This report meets the calendar year 2012 Sequim Site annual reporting requirement for its operations as a privately-owned facility as well as its federally-contracted status that began in October 2012. Compliance is indicated by comparing the estimated dose to the maximally exposed individual (MEI) with the 10 mrem/yr Environmental Protection Agency (EPA) standard. The MSL contains only sources classified as fugitive emissions. Despite the fact that the regulations are intended for application to point source emissions, fugitive emissions are included with regard to complying with the EPA standard. The dose to the Sequim Site MEI due to routine operations in 2012 was 9E-06 mrem (9E-08 mSv). No non-routine emissions occurred in 2012. The MSL is in compliance with the federal and state 10 mrem/yr standard.

  5. Synthesis of MOF having hydroxyl functional side groups and optimization of activation process for the maximization of its BET surface area

    SciTech Connect (OSTI)

    Kim, Jongsik [Hanwha Chemical Research and Development Center, 6, Shinseong-dong, Yuseong-gu, Daejeon 305-804 (Korea, Republic of); Kim, Dong Ok, E-mail: gmjong37@gmail.com [Hanwha Chemical Research and Development Center, 6, Shinseong-dong, Yuseong-gu, Daejeon 305-804 (Korea, Republic of); Kim, Dong Wook; Sagong, Kil [Hanwha Chemical Research and Development Center, 6, Shinseong-dong, Yuseong-gu, Daejeon 305-804 (Korea, Republic of)

    2013-01-15T23:59:59.000Z

    To accomplish the postsynthetic modification of MOF with organic-metal precursors (OMPs) described in our previous researches more efficiently, synthesis of MOF (HCC-2) possessing relatively larger pore size as well as higher number of hydroxyl functional side groups per its base unit than those of HCC-1 has been successfully conducted via adopting 1,4-di-(4-carboxy-2,6-dihydroxyphenyl)benzene as an organic ligand and Zn(NO{sub 3}){sub 2}{center_dot}6H{sub 2}O as a metal source, respectively. Also, optimization about the Activation process of HCC-2 was performed to maximize its BET (Brunauer-Emmett-Teller) surface area which was proved to be proportional to the number of exposed active sites on which its postsynthetic modification occurred. However, Activation process having been validated to be so effective with the acquirement of highly-purified HCC-1 (CO{sub 2} supercritical drying step followed by vacuum drying step) was less satisfactory with the case of HCC-2. This might be attributed to relatively higher hydrophilicity and bulkier molecular structure of organic ligand of HCC-2. However, it was readily settled by simple modification of above Activation process. Moreover, indispensable residues composed of both DMF and its thermally degraded derivatives which were chemically attached via coordination bond with hydroxyl functionalities even after Activation process III might enable their H{sub 2} adsorption properties to be seriously debased compared to that of IRMOF-16 having no hydroxyl functionalities. - Graphical abstract: Synthesis of new-structured MOF (HCC-2) simultaneously possessing relatively larger pore size as well as higher number of hydroxyl functional side groups per its base unit at the same time than those of HCC-1 has been performed via adopting 1,4-di-(4-carboxy-2,6-dihydroxyphenyl)benzene as an organic ligand and Zn(NO{sub 3}){sub 2}{center_dot}6H{sub 2}O as a metal source, respectively. Also, the optimization of activation process for HCC-2 was conducted to maximize its BET surface area while the suitability of this activation process was proved via SEM, TGA, EA, XRF, and PSD. Being compared with the crystal structures of IRMOF-16 and HCC-1 via XRD and FT-IR analysis, the crystal structure of HCC-2 having an identical chemical structure except the introduction of four hydroxyl functional side groups on the backbone of its organic ligand showed no noticeable change. Specifically, HCC-2 was established as a cubic structure with each axis of about 21.5 A. Moreover, H{sub 2} adsorption isotherms for these HCCs were attained to ultimately examine that hydroxyl functionalities inside their pores have any influence on their H{sub 2} adsorption properties. Highlights: Black-Right-Pointing-Pointer HCC-2 having higher number of hydroxyl groups than that of HCC-1 was prepared. Black-Right-Pointing-Pointer The optimization of activation process for HCC-2 was studied. Black-Right-Pointing-Pointer The crystal structure of HCC-2 was a cubic-shaped structure with each axis of 21.5 A. Black-Right-Pointing-Pointer -OH functionalities on HCCs had negative influence on their H{sub 2} adsorption abilities. Black-Right-Pointing-Pointer This might be due to impurities rigidly attached to their functional side groups.

  6. Predictability of estimated maximal aerobic capacities for manual material handlers using submaximal box lifting and bench stepping tests

    E-Print Network [OSTI]

    Cortner, James D.

    1996-01-01T23:59:59.000Z

    , physiologic and psychophysic principles in the Department of Health and Human Services (DHHS-NIOSH) publication 81-122 entitled Work Practices Guide for Manual Lifting. The Guide incorporated those principles into specific formulas that rate specific tasks.... 3 kg (9. 5 lb). For each subject, heart rate was plotted against V Ot measurements and furnished with a best ftt line using linear regression. An individual's maximal aerobic capacity was estimated by extrapolating the best ftt line...

  7. The distribution of F-centers in Nacl crystals partially exposed to X-irradiation

    E-Print Network [OSTI]

    Blount, Charles Edwin

    1960-01-01T23:59:59.000Z

    irradiation produce F-centers. From these results an initial negative-ion vacancy of 101&/cm3 was obtained from Harshaw crystals. R. G. Brechenridgey obtained a positive-ion vacancy concen- tration of Z. 1 n 101y(cm3 at SSoC for Harshaw NaCl crystals. A...THE DISTRIBUTION OF F-CENTERS IN NACL CRYSTALS PARTIALLY EXPOSED TO X-IRRADIATION Charles E. Blount Submitted to ths Osaduats School cf the Ag&eultusal aad hlsehaaleal CoRege of Teeas ka ' . yae~ fulfSIttteet of the seejaka'~ 4e' the dega...

  8. Paraoxonase-1 genetic polymorphisms and susceptibility to DNA damage in workers occupationally exposed to organophosphate pesticides

    SciTech Connect (OSTI)

    Singh, Satyender [Division of Biochemistry and Biotechnology, National Centre for Disease Control, 22, Sham Nath Marg, Delhi-110054 (India); Kumar, Vivek [Environmental Biochemistry and Molecular Biology laboratory, Department of Biochemistry, University College of Medical Sciences and GTB Hospital, University of Delhi, Dilshad Garden, Delhi-110095 (India); Thakur, Sachin [Division of Biochemistry and Biotechnology, National Centre for Disease Control, 22, Sham Nath Marg, Delhi-110054 (India); Presently at, Department of Biochemistry, University of Texas Health Science Center at San Antonio (UTHSCSA), 7703 Floyd Curl Drive, San Antonio, TX 78229-3900 (United States); Banerjee, Basu Dev [Environmental Biochemistry and Molecular Biology laboratory, Department of Biochemistry, University College of Medical Sciences and GTB Hospital, University of Delhi, Dilshad Garden, Delhi-110095 (India); Rautela, Rajender Singh; Grover, Shyam Sunder; Rawat, Devendra Singh [Division of Biochemistry and Biotechnology, National Centre for Disease Control, 22, Sham Nath Marg, Delhi-110054 (India); Pasha, Syed Tazeen [National Programme for Prevention and Control of Fluorosis, DGHS, Ministry of Health and Family Welfare, Government of India, Nirman Bhavan, New Delhi 110011 (India); Jain, Sudhir Kumar [Centre for Epidemiology and Parasitic Diseases, National Centre for Disease Control, 22, Sham Nath Marg, Delhi-110054 (India); Ichhpujani, Rattan Lal [Division of Biochemistry and Biotechnology, National Centre for Disease Control, 22, Sham Nath Marg, Delhi-110054 (India); National Programme for Prevention and Control of Fluorosis, DGHS, Ministry of Health and Family Welfare, Government of India, Nirman Bhavan, New Delhi 110011 (India); Rai, Arvind, E-mail: arvindrai.nicd@gmail.com [Division of Biochemistry and Biotechnology, National Centre for Disease Control, 22, Sham Nath Marg, Delhi-110054 (India)

    2011-04-15T23:59:59.000Z

    Human paraoxonase 1 (PON1) is a lipoprotein-associated enzyme involved in the detoxification of organophosphate pesticides (OPs) by hydrolyzing the bioactive oxons. Polymorphisms of the PON1 gene are responsible for variation in the expression and catalytic activity of PON1 enzyme. In the present study, we have determined (a) the prevalence of two common PON1 polymorphisms, (b) the activity of PON1 and acetylcholinesterase enzymes, and (c) the influence of PON1 genotypes and phenotypes variation on DNA damage in workers exposed to OPs. We examined 230 subjects including 115 workers exposed to OPs and an equal number of normal healthy controls. The results revealed that PON1 activity toward paraoxon (179.19 {+-} 39.36 vs. 241.52 {+-} 42.32 nmol/min/ml in controls) and phenylacetate (112.74 {+-} 17.37 vs. 134.28 {+-} 25.49 {mu}mol/min/ml in controls) was significantly lower in workers than in control subjects (p < 0.001). No significant difference was observed in the distribution of genotypes and allelic frequencies of PON1{sub 192}QR (Gln/Arg) and PON1{sub 55}LM (Leu/Met) in workers and control subjects (p > 0.05). The PON1 activity toward paraoxonase was found to be significantly higher in the R/R (Arg/Arg) genotypes than Q/R (Gln/Arg) and lowest in Q/Q (Gln/Gln) genotypes in both workers and control subjects (p < 0.001). For PON1{sub 55}LM (Leu/Met), PON1 activity toward paraoxonase was observed to be higher in individuals with L/L (Leu/Leu) genotypes and lowest in individuals with M/M (Met/Met) genotypes in both groups (p < 0.001). No influence of PON1 genotypes and phenotypes was seen on the activity of acetylcholinesterase and arylesterase. The DNA damage was observed to be significantly higher in workers than in control subjects (p < 0.05). Further, the individuals who showed least paraoxonase activity i.e., those with (Q/Q [Gln/Gln] and M/M [Met/Met]) genotypes showed significantly higher DNA damage compared to other isoforms in workers exposed to OPs (p < 0.05). The results indicate that the individuals with PON1 Q/Q and M/M genotypes are more susceptible toward genotoxicity. In conclusion, the study suggests wide variation in enzyme activities and DNA damage due to polymorphisms in PON1 gene, which might have an important role in the identification of individual risk factors in workers occupationally exposed to OPs.

  9. Photodegradation effects in materials exposed to high flux solar and solar simulated radiation

    SciTech Connect (OSTI)

    Ignatiev, A. [Houston Univ., TX (United States)

    1992-04-01T23:59:59.000Z

    This report contains study results about photodegradation effects in materials exposed to high flux solar and solar simulated radiation. The studies show that high flux photoirradiation of materials can result in significant changes in the stability of materials. Photodesorption and photo-enhanced oxidation were determined to be the major mechanisms. These mechanisms were shown to affect, in extremely adverse ways, the expected thermal stability of solar relevant materials, especially stainless steels, (It is expected that related high temperature alloy steels will be similarly affected.) An analytical expression was generated to predict the flux behavior of the steels using {number_sign}304 as a prototypical stainless steel system.

  10. Photodegradation effects in materials exposed to high flux solar and solar simulated radiation

    SciTech Connect (OSTI)

    Ignatiev, A [Houston Univ., TX (United States)

    1992-04-01T23:59:59.000Z

    This report contains study results about photodegradation effects in materials exposed to high flux solar and solar simulated radiation. The studies show that high flux photoirradiation of materials can result in significant changes in the stability of materials. Photodesorption and photo-enhanced oxidation were determined to be the major mechanisms. These mechanisms were shown to affect, in extremely adverse ways, the expected thermal stability of solar relevant materials, especially stainless steels, (It is expected that related high temperature alloy steels will be similarly affected.) An analytical expression was generated to predict the flux behavior of the steels using {number sign}304 as a prototypical stainless steel system.

  11. Self-shielding of a plasma-exposed surface during extreme transient heat loads

    SciTech Connect (OSTI)

    Zielinski, J. J.; Meiden, H. J. van der; Morgan, T. W.; Hoen, M. H. J. 't; De Temmerman, G., E-mail: g.c.detemmerman@differ.nl [FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, Association EURATOM-FOM, Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Schram, D. C. [Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands)

    2014-03-24T23:59:59.000Z

    The power deposition on a tungsten surface exposed to combined pulsed/continuous high power plasma is studied. A study of the correlation between the plasma parameters and the power deposition on the surface demonstrates the effect of particle recycling in the strongly coupled regime. Upon increasing the input power to the plasma source, the energy density to the target first increases then decreases. We suggest that the sudden outgassing of hydrogen particles from the target and their subsequent ionization causes this. This back-flow of neutrals impedes the power transfer to the target, providing a shielding of the metal surface from the intense plasma flux.

  12. Metallicity of InN and GaN surfaces exposed to NH{sub 3}.

    SciTech Connect (OSTI)

    Walkosz, W.; Zapol, P.; Stephenson, G. B. (Materials Science Division)

    2012-01-01T23:59:59.000Z

    A systematic study of energies and structures of InN and GaN (0001) surfaces exposed to NH{sub 3} and its decomposition products was performed with first-principles methods. A phenomenological model including electron counting contributions is developed based on calculated DFT energies and is used to identify low-energy structures. These predictions are checked with additional DFT calculations. The equilibrium phase diagrams are found to contain structures that violate the electron counting rule. Densities of states for these structures indicate n-type conductivity, consistent with available experimental results.

  13. Long-term mortality profile of heavily-exposed lead smelter workers

    SciTech Connect (OSTI)

    McMichael, A.J. (South Australian Health Commission, Adelaide); Johnson, H.M.

    1982-05-01T23:59:59.000Z

    Of 241 male smelter workers diagnosed as having lead poisoning during 1928 to 1959, 140 are known to have subsequently died. Their cause-of-death profile has been compared with that of 695 other male decedents (predominantly nonoffice production workers) from the same smelter and with that of the Australian male population. Age-standarized proportional mortality analysis shows a substantial excess in the numbers of deaths from chronic renal disease and cerebral hemorrhage, particularly prior to 1965. A moderate excess was also apparent for the other smelter workers. In recent years, these mortality excesses in lead-exposed workers have largely dissipated.

  14. Cast Stone Oxidation Front Evaluation: Preliminary Results For Samples Exposed To Moist Air

    SciTech Connect (OSTI)

    Langton, C. A.; Almond, P. M.

    2013-11-26T23:59:59.000Z

    The rate of oxidation is important to the long-term performance of reducing salt waste forms because the solubility of some contaminants, e.g., technetium, is a function of oxidation state. TcO{sub 4}{sup ?} in the salt solution is reduced to Tc(IV) and has been shown to react with ingredients in the waste form to precipitate low solubility sulfide and/or oxide phases. Upon exposure to oxygen, the compounds containing Tc(IV) oxidize to the pertechnetate ion, Tc(VII)O{sub 4}{sup ?}, which is very soluble. Consequently the rate of technetium oxidation front advancement into a monolith and the technetium leaching profile as a function of depth from an exposed surface are important to waste form performance and ground water concentration predictions. An approach for measuring contaminant oxidation rate (effective contaminant specific oxidation rate) based on leaching of select contaminants of concern is described in this report. In addition, the relationship between reduction capacity and contaminant oxidation is addressed. Chromate (Cr(VI) was used as a non-radioactive surrogate for pertechnetate, Tc(VII), in Cast Stone samples prepared with 5 M Simulant. Cast Stone spiked with pertechnetate was also prepared and tested. Depth discrete subsamples spiked with Cr were cut from Cast Stone exposed to Savannah River Site (SRS) outdoor ambient temperature fluctuations and moist air. Depth discrete subsamples spiked with Tc-99 were cut from Cast Stone exposed to laboratory ambient temperature fluctuations and moist air. Similar conditions are expected to be encountered in the Cast Stone curing container. The leachability of Cr and Tc-99 and the reduction capacities, measured by the Angus-Glasser method, were determined for each subsample as a function of depth from the exposed surface. The results obtained to date were focused on continued method development and are preliminary and apply to the sample composition and curing / exposure conditions described in this report. The Cr oxidation front (depth to which soluble Cr was detected) for the Cast Stone sample exposed for 68 days to ambient outdoor temperatures and humid air (total age of sample was 131 days) was determined to be about 35 mm below the top sample surface exposed. The Tc oxidation front, depth at which Tc was insoluble, was not determined. Interpretation of the results indicates that the oxidation front is at least 38 mm below the exposed surface. The sample used for this measurement was exposed to ambient laboratory conditions and humid air for 50 days. The total age of the sample was 98 days. Technetium appears to be more easily oxidized than Cr in the Cast Stone matrix. The oxidized forms of Tc and Cr are soluble and therefore leachable. Longer exposure times are required for both the Cr and Tc spiked samples to better interpret the rate of oxidation. Tc spiked subsamples need to be taken further from the exposed surface to better define and interpret the leachable Tc profile. Finally Tc(VII) reduction to Tc(IV) appears to occur relatively fast. Results demonstrated that about 95 percent of the Tc(VII) was reduced to Tc(IV) during the setting and very early stage setting for a Cast Stone sample cured 10 days. Additional testing at longer curing times is required to determine whether additional time is required to reduce 100 % of the Tc(VII) in Cast Stone or whether the Tc loading exceeded the ability of the waste form to reduce 100 % of the Tc(VII). Additional testing is required for samples cured for longer times. Depth discrete subsampling in a nitrogen glove box is also required to determine whether the 5 percent Tc extracted from the subsamples was the result of the sampling process which took place in air. Reduction capacity measurements (per the Angus-Glasser method) performed on depth discrete samples could not be correlated with the amount of chromium or technetium leached from the depth discrete subsamples or with the oxidation front inferred from soluble chromium and technetium (i.e., effective Cr and Tc oxidation fronts). Residual reduction capacity

  15. Aspects of glycine metabolism in juvenile white shrimp (Penaeus setiferus, L.) acutely exposed to hypersaline conditions

    E-Print Network [OSTI]

    Koenig, Michael L

    1981-01-01T23:59:59.000Z

    Penaeus set1ferus. D1stribution of tr1t1um label (adminis- te ed a~sll-gtycfne and gh-p oline) hetwe the FAA and macromolecular pools of abdom1nal muscle. . . . . . . . . . . . . . . . . . . . . 27 Penaeus set1ferus. Di str1but1on of C label (admin 1s... th1s an1mal is exposed to a hypersaline environment. Two meta- bol1c pathways by which the glycine levels might be increased have been investigated. The poss1b1lity that catabolism of a specif1c protein may contribute to the increased glyc1ne...

  16. The Mount Perkins block, northwestern Arizona: An exposed cross section of an evolving, preextensional to synextensional magmatic system

    E-Print Network [OSTI]

    Faulds, James E.; Feuerbach, Daniel L.; Reagan, Mark K.; Metcalf, Rodney V.; Gans, Phil; Walker, J. Douglas

    1995-08-10T23:59:59.000Z

    The steeply tilted Mount Perkins block, northwestern Arizona, exposes a cross section of a magmatic system that evolved through the onset of regional extension. New 40Ar/39Ar ages of variably tilted (0–90°) volcanic strata ...

  17. The effect of humidity on the collection efficiencies of two monitoring methods when exposed to a mixture of organic solvents

    E-Print Network [OSTI]

    Rushlow, Lori Ann

    1989-01-01T23:59:59.000Z

    of contaminant and a set humidity level for a two-hour period. The relative humidity levels generated were approximately 10, 50 and 804. Immediately following this two hour period, the samplers were exposed to a predetermined mixture of acetone and toluene... efficiency when exposed to higher humidities than nonoxygenated hydrocarbons, such as toluene, or are there another factors that account for acetone having a larger decrease in collection efficiency? Statistical Analysis The results were entered...

  18. Corrosion evaluation of weldments exposed in TVA and Rocketdyne AFB (Atmospheric Fluid-Bed) Combustors

    SciTech Connect (OSTI)

    Wang, D.Y.; Natesan, K.

    1989-09-01T23:59:59.000Z

    A number of experimental iron-, nickel-, and cobalt-based weldment materials were exposed in TVA 20MW and Rocketdyne Atmospheric Fluid-bed Combustors at 849{degree}C for 1261 h and 871{degree}C for 1000 h, respectively. The post-exposure analyses were conducted in Argonne National Laboratory. All specimens experienced different degrees of internal oxidation/sulfidation. Among eight filler materials, Marathon 25/35R and Haynes 188 showed the least corrosion attack, which was less than 0.5 mmpy. The high nickel content in the weldment turned out to be unfavorable for the corrosion resistance in AFBC environment. The differences in the coal/bed chemistry induced different corrosion behavior in materials exposed in TVA and Rocketdyne systems. Calcium sulfate deposit on the specimens showed significant effects on the internal oxidation/sulfidation of the alloys. The results of this study would supplement the material database, in particular weldment performance, and aid in materials selection for atmospheric fluidized bed combustor applications. 10 refs., 13 figs., 4 tabs.

  19. Corrosion behavior of technetium waste forms exposed to various aqueous environments

    SciTech Connect (OSTI)

    Kolman, David Gary [Los Alamos National Laboratory; Jarvinen, Gordon [Los Alamos National Laboratory; Mausolf, Edward [UNIV OF NEVADA; Czerwinski, Ken [UNIV OF NEVADA; Poineau, Frederic [UNIV OF NEVADA

    2009-01-01T23:59:59.000Z

    Technetium is a long-lived beta emitter produced in high yields from uranium as a waste product in spent nuclear fuel and has a high degree of environmental mobility as pertechnetate. It has been proposed that Tc be immobilized into various metallic waste forms to prevent Tc mobility while producing a material that can withstand corrosion exposed to various aqueous medias to prevent the leachability of Tc to the environment over long periods of time. This study investigates the corrosion behavior of Tc and Tc alloyed with 316 stainless steel and Zr exposed to a variety of aqueous media. To date, there is little investigative work related to Tc corrosion behavior and less related to potential Tc containing waste forms. Results indicate that immobilizing Tc into stainless steel-zirconium alloys can be a promising technique to store Tc for long periods of time while reducing the need to separately store used nuclear fuel cladding. Initial results indicate that metallic Tc and its alloys actively corrode in all media. We present preliminary corrosion rates of 100% Tc, 10% Tc - 90% SS{sub 85%}Zr{sub 15%}, and 2% Tc - 98% SS{sub 85%}Zr{sub 15%} in varying concentrations of nitric acid and pH 10 NaOH using the resistance polarization method while observing the trend that higher concentrations of Tc alloyed to the sample tested lowers the corrosion rate of the proposed waste package.

  20. Search for Maximal Flavor Violating Scalars in Same-Charge Lepton Pairs in pp-bar Collisions at sqrt[s]=1.96 TeV

    E-Print Network [OSTI]

    Miles, Christopher J.

    Models of maximal flavor violation (MxFV) in elementary particle physics may contain at least one new scalar SU(2) doublet field ?FV=(?[superscript 0],?[superscript +]) that couples the first and third generation quarks ...

  1. Maximizing the usage of renewable energy will reduce our reliance on dwindling natural resources and environmental pollution. Batteries are an important enabling technology for renewable energy, portable

    E-Print Network [OSTI]

    Tsymbal, Evgeny Y.

    Maximizing the usage of renewable energy will reduce our reliance on dwindling natural resources and environmental pollution. Batteries are an important enabling technology for renewable energy, portable electronics, and modern transportation systems such as hybrid electric vehicles. However, limitation

  2. Corrosion of austenitic and ferritic-martensitic steels exposed to supercritical carbon dioxide

    SciTech Connect (OSTI)

    Tan, Lizhen [ORNL; Anderson, Mark [University of Wisconsin, Madison; Taylor, D [Bechtel Marine Propulsion Corporation; Allen, Todd R. [University of Wisconsin, Madison

    2011-01-01T23:59:59.000Z

    Supercritical carbon dioxide (S-CO{sub 2}) is a potential coolant for advanced nuclear reactors. The corrosion behavior of austenitic steels (alloys 800H and AL-6XN) and ferritic-martensitic (FM) steels (F91 and HCM12A) exposed to S-CO{sub 2} at 650 C and 20.7 MPa is presented in this work. Oxidation was identified as the primary corrosion phenomenon. Alloy 800H had oxidation resistance superior to AL-6XN. The FM steels were less corrosion resistant than the austenitic steels, which developed thick oxide scales that tended to exfoliate. Detailed microstructure characterization suggests the effect of alloying elements such as Al, Mo, Cr, and Ni on the oxidation of the steels.

  3. Generalization of the Brodsky-Lepage-Mackenzie optimization within the $\\{?\\}$-expansion and the Principle of Maximal Conformality

    E-Print Network [OSTI]

    A. L. Kataev; S. V. Mikhailov

    2015-01-11T23:59:59.000Z

    We discuss generalizations of the BLM optimization procedure for renormalization group invariant quantities. In this respect, we discuss in detail the features and construction of the $\\{\\beta\\}$--expansion representation instead of the standard perturbative series with regards to the Adler $D$-function and Bjorken polarized sum rules obtained in order of ${\\cal O}(\\alpha_s^4)$. Based on the $\\{\\beta\\}$--expansion we analyse different schemes of optimization, including the corrected Principle of Maximal Conformality, numerically illustrating their results. We suggest our scheme for the series optimization and apply it to both the above quantities.

  4. Deuterium Depth Profile in Neutron-Irradiated Tungsten Exposed to Plasma

    SciTech Connect (OSTI)

    Masashi Shimada; G. Cao; Y. Hatano; T. Oda; Y. Oya; M. Hara; P. Calderoni

    2011-05-01T23:59:59.000Z

    The effect of radiation damage has been mainly simulated using high-energy ion bombardment. The ions, however, are limited in range to only a few microns into the surface. Hence, some uncertainty remains about the increase of trapping at radiation damage produced by 14 MeV fusion neutrons, which penetrate much farther into the bulk material. With the Japan-US joint research project: Tritium, Irradiations, and Thermofluids for America and Nippon (TITAN), the tungsten samples (99.99 % pure from A.L.M.T., 6mm in diameter, 0.2mm in thickness) were irradiated to high flux neutrons at 50 C and to 0.025 dpa in the High Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory (ORNL). Subsequently, the neutron-irradiated tungsten samples were exposed to a high-flux deuterium plasma (ion flux: 1021-1022 m-2s-1, ion fluence: 1025-1026 m-2) in the Tritium Plasma Experiment (TPE) at the Idaho National Laboratory (INL). First results of deuterium retention in neutron-irradiated tungsten exposed in TPE have been reported previously. This paper presents the latest results in our on-going work of deuterium depth profiling in neutron-irradiated tungsten via nuclear reaction analysis. The experimental data is compared with the result from non neutron-irradiated tungsten, and is analyzed with the Tritium Migration Analysis Program (TMAP) to elucidate the hydrogen isotope behavior such as retention and depth distribution in neutron-irradiated and non neutron-irradiated tungsten.

  5. Rapid electron exchange between surface-exposed bacterial cytochromes and Fe(III) minerals

    SciTech Connect (OSTI)

    White, Gaye F.; Shi, Zhi; Shi, Liang; Wang, Zheming; Dohnalkova, Alice; Marshall, Matthew J.; Fredrickson, Jim K.; Zachara, John M.; Butt, Julea N.; Richardson, David; Clarke, Thomas A.

    2013-04-16T23:59:59.000Z

    The mineral respiring bacterium Shewanella oneidensis uses a protein complex, MtrCAB, composed of two decaheme cytochromes brought together inside a transmembrane porin to transport electrons across the outer membrane to a variety of mineral-based electron acceptors. A proteoliposome system that contains methyl viologen as an internalised electron carrier has been used to investigate how the topology of the MtrCAB complex relates to its ability to transport electrons across a lipid bilayer to externally-located Fe(III) oxides. With MtrA facing the interior and MtrC exposed on the outer surface of the phospholipid bilayer, direct electron transfer from the interior through MtrCAB to solid-phase Fe(III) oxides was demonstrated. The observed rates of conduction through the protein complex were 2 to 3 orders of magnitude higher than that observed in whole cells, demonstrating that direct electron exchange between MtrCAB and Fe(III) oxides is efficient enough to support in-vivo, anaerobic, solid phase iron respiration.

  6. Pulmonary function and respiratory symptoms of school children exposed to ambient air pollution

    SciTech Connect (OSTI)

    Kim, Yoon Shin; Ko, Ung Ring [Hanyang Univ., Seoul (Korea, Republic of)

    1996-12-31T23:59:59.000Z

    This study was undertaken to evaluate the health effect of air pollution on pulmonary function and respiratory symptoms of Korean school children between 7 and 10 years of age during November 1995-January 1996. A standard respiratory symptom questionnaire was administered and spirometry was performed to examine pulmonary function of 121 children in an urban polluted area, Seoul, and of 119 children in non-polluted area, Sokcho, respectively. There was significant difference in the level of pulmonary function [forced expiratory volume in second (FEV{sub 1.0}) and forced vital capacity (FVC)] between exposed groups to polluted area and non-polluted area. Parental smoking was significantly related to respiratory symptoms of cough, phlegm, and the level of pulmonary function. The observed changes in FEV{sub 1.0} and FVC seemed to relate to home cooking fuel, not to respiratory symptoms. The additional longitudinal work that carefully monitors ambient and indoor air pollution and health effects data should be conducted to confirm these results.

  7. Static corrosion of construction materials exposed to superphosphoric acid made from various sources of phosphate rock

    SciTech Connect (OSTI)

    Nguyen, D.T.; McDonald, C.L.; McGill, K.E.

    1994-10-01T23:59:59.000Z

    Corrosion tests were performed with various construction materials, such as carbon steel, cast iron, stainless steels, nickel and nickel-based alloys, copper and its alloys, aluminum alloy, zirconium alloy, and tantalum, exposed to wet-process superphosphoric acids (approximately 70% P{sub 2}O{sub 5}) from all the suppliers in the United States and to a technical-grade (55% P{sub 2}O{sub 5}) acid made by the electric furnace process. The study was conducted in response to reports from pipe-reactor users of excessive corrosion by superphosphoric acids and electric furnace acid. Test temperatures were ambient (approximately 21{degrees}C or 70{degrees}F), 66{degrees}C (150{degrees}F), and 93{degrees}C (200{degrees}F). Test results showed that temperature was a significant factor in acid corrosivity. Electric furnace acid was more corrosive than the superphosphoric acids. Carbon steel, cast iron, and aluminum alloy were not resistant to either the superphosphoric acids or the electric furnace acid. Nickel-chromium (Ni-Cr) and nickel-molybdenum (Ni-Mo) based alloys and tantalum exhibited adequate corrosion resistance in the superphosphoric acids and the electric furnace acid. Stainless steels performed well in all test acids at all test temperatures with some exceptions in the electric furnace acid at 93{degrees}C. Zirconium alloy, copper and its alloys, pure nickel, and Monel 400 provided adequate corrosion resistance to all test acids at ambient temperature only.

  8. Interactions of mobile helium clusters with surfaces and grain boundaries of plasma-exposed tungsten

    SciTech Connect (OSTI)

    Hu, Lin; Maroudas, Dimitrios, E-mail: maroudas@ecs.umass.edu [Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003-9303 (United States); Hammond, Karl D.; Wirth, Brian D. [Department of Nuclear Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States)

    2014-05-07T23:59:59.000Z

    We report results of atomistic computations for the interactions of small mobile helium clusters (He{sub n}) with free surfaces and grain boundaries (GBs) in tungsten toward development of continuum drift-diffusion-reaction models for the dynamics of mobile helium clusters in plasma-exposed tungsten. Molecular-statics (MS) simulations based on reliable many-body interatomic potentials are carried out for He{sub n} (1???n???7) clusters near sinks to obtain the potential energy profiles of the He{sub n} clusters as a function of the clusters' center-of-mass distance from a sink. Sinks investigated include surfaces, GBs, and regions in the vicinity of junctions where GBs intersect free surfaces. Elastic interaction potentials based on elastic inclusion theory provide an excellent description of the MS results for the cluster-sink interactions. The key parameter in the elastic models is the sink segregation strength, which is found to increase with increasing cluster size. Such cluster-sink interactions are responsible for the migration of small helium clusters by drift and for helium segregation on surfaces and grain boundaries in tungsten. Such helium segregation on sinks is observed in large-scale molecular-dynamics simulations of helium aggregation in model polycrystalline tungsten at 933?K upon helium implantation.

  9. Low-temperature hot corrosion of turbine materials exposed to the effluent from an experimental PFBC

    SciTech Connect (OSTI)

    McCarron, R.L.; Bropst, R.P.

    1984-06-01T23:59:59.000Z

    The General Electric Company, under contract to the Department of Energy, is conducting a long-term materials test at the G.E. Malta Pressurized Fluidized-Bed Combustor (PFBC) test facility. The primary objective of the test program is to determine the corrosion resistance of candidate gas turbine vane and blade base alloys and protective coating systems in the effluent from a pressurized fluidized bed coal combustor for extended periods of time up to 10,000 hours. The rig consists of a coal/dolomite feed system, combustor, three stages of cyclone cleanup, and two material test sections. Heat is extracted by an in-bed water-cooled heat exchanger. The first low-velocity test section (LVTS) contains 180 pin specimens, 60 of which are air cooled. The second high-velocity test section (HVTS) consists of 24 airfoils arranged in 4 cascades. Results discussed here are based upon specimens exposed in the low velocity test section to hot combustion gases at temperatures of 788-816 C uncooled and 593-704 C using air cooled hollow pins. Base alloys, coatings, and claddings selected for exposure in the test are listed and discussed. 1 figure, 3 tables.

  10. Voltage/Pitch Control for Maximization and Regulation of Active/Reactive Powers in Wind Turbines with Uncertainties

    E-Print Network [OSTI]

    Guo, Yi; Jiang, John N; Tang, Choon Yik; Ramakumar, Rama G

    2010-01-01T23:59:59.000Z

    This paper addresses the problem of controlling a variable-speed wind turbine with a Doubly Fed Induction Generator (DFIG), modeled as an electromechanically-coupled nonlinear system with rotor voltages and blade pitch angle as its inputs, active and reactive powers as its outputs, and most of the aerodynamic and mechanical parameters as its uncertainties. Using a blend of linear and nonlinear control strategies (including feedback linearization, pole placement, uncertainty estimation, and gradient-based potential function minimization) as well as time-scale separation in the dynamics, we develop a controller that is capable of maximizing the active power in the Maximum Power Tracking (MPT) mode, regulating the active power in the Power Regulation (PR) mode, seamlessly switching between the two modes, and simultaneously adjusting the reactive power to achieve a desired power factor. The controller consists of four cascaded components, uses realistic feedback signals, and operates without knowledge of the C_p-...

  11. Stability of Proton and Maximally Symmetric Minimal Unification Model for Basic Forces and Building Blocks of Matter

    E-Print Network [OSTI]

    Yue-Liang Wu

    2007-01-17T23:59:59.000Z

    With the hypothesis that all independent degrees of freedom of basic building blocks should be treated equally on the same footing and correlated by a possible maximal symmetry, we arrive at an 4-dimensional space-time unification model. In this model the basic building blocks are Majorana fermions in the spinor representation of 14-dimensional quantum space-time with a gauge symmetry $G = SO(1,3)\\times SU(32)\\times U(1)_A \\times SU(3)_F$. The model leads to new physics including mirror particles of the standard model. It enables us to issue some fundamental questions that include: why our living space-time is 4-dimensional, why parity is not conserved in our world, how is the stability of proton, what is the origin of CP violation and what can be the dark matter.

  12. Correlations between Hurst Exponent and maximal Lyapunov Exponent for some low-dimensional discrete conservative dynamical systems

    E-Print Network [OSTI]

    Tarnopolski, Mariusz

    2015-01-01T23:59:59.000Z

    The Chirikov standard map and the 2D Froeschl\\'e map are investigated. The Hurst Exponent (HE) and maximal Lyapunov Exponent (mLE) plots in a mixed parameter-initial condition space are calculated for a few thousand values. It is found that for both maps the HE distribution follows extremely well the mLE distribution in this space. The correlations are 0.95 and 0.88 for the Chirikov and 2D Froeschl\\'e maps, respectively. Despite the statistical distributions differ significantly between the maps, they have common properties, hence a universal relation is speculated to underly this correlation. As the numerical calculation of the HE is more time-consuming, a machine learning procedure is performed and the HE distributions are reproduced based on several values of the mLE. A perfect agreement is found, which allows to investigate statistical properties of HE distributions based on easier to compute mLE values.

  13. Coal fly ash basins as an attractive nuisance to birds: Parental provisioning exposes nestlings to harmful trace elements

    E-Print Network [OSTI]

    Hopkins, William A.

    inhabiting settling impoundments receiving slurried ash from a coal-fired power plant located on the U. SCoal fly ash basins as an attractive nuisance to birds: Parental provisioning exposes nestlings Keywords: Coal fly ash basin Common Grackle Contaminants Quiscalus quiscala Selenium a b s t r a c t Birds

  14. Liver antioxidant and plasmatic immune responses in juvenile1 golden grey mullet (Liza aurata) exposed to dispersed crude oil2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ) exposed to dispersed crude oil2 3 Thomas Milinkovitch1* , Awa Ndiaye2 , Wilfried Sanchez2 , Stéphane Le ; CD : Chemically Dispersed oil ; D : Dispersant solution ; MD : Mechanically Dispersed oil; WSF application is an oil spill response technique. To evaluate the environmental31 cost of this operation

  15. Protein Adducts of 1,4-Benzoquinone and Benzene Oxide among Smokers and Nonsmokers Exposed to Benzene in China1

    E-Print Network [OSTI]

    California at Berkeley, University of

    Protein Adducts of 1,4-Benzoquinone and Benzene Oxide among Smokers and Nonsmokers Exposed to Benzene in China1 Karen Yeowell-O'Connell, Nathaniel Rothman, Suramya Waidyanatha, Martyn T. Smith [W. E. B.] Abstract Hemoglobin (Hb) and albumin (Alb) adducts of the benzene metabolites benzene

  16. The effects of ethylenediurea and sodium erythorbate on photosynthetic function of ozone-exposed loblolly pine seedlings

    E-Print Network [OSTI]

    Kuehler, Eric Anthony

    1995-01-01T23:59:59.000Z

    -top chambers in east Texas for one growing season beginning in April 1994 while being exposed to either sub-ambient (CF), approximate ambient (NF), 1.5Y,, 2.OX, or 2.5X ambient ozone levels. Net photosynthesis (A), stomatal conductance (g), and chloroplast...

  17. Carcinogenesis and Inflammatory Effects of Plutonium-Nitrate Retention in an Exposed Nuclear Worker and Beagle Dogs.

    SciTech Connect (OSTI)

    Nielsen, Christopher E.; Wang, Xihai; Robinson, Robert J.; Brooks, Antone L.; Lovaglio, Jamie A.; Patton, Kristin M.; McComish, Stacey; Tolmachev, Sergei Y.; Morgan, William F.

    2014-01-01T23:59:59.000Z

    The genetic and inflammatory response pathways elicited following plutonium exposure in archival lung tissue of an occupationally exposed human and experimentally exposed beagle dogs were investigated. These pathways include: tissue injury, apoptosis and gene expression modifications related to carcinogenesis and inflammation. In order to determine which pathways are involved, multiple lung samples from a plutonium exposed worker (Case 0269), a human control (Case 0385), and plutonium exposed beagle dogs were examined using histological staining and immunohistochemistry. Examinations were performed to identify target tissues at risk of radiation-induced fibrosis, inflammation, and carcinogenesis. Case 0269 showed interstitial fibrosis in peripheral and subpleural regions of the lung, but no pulmonary tumors. In contrast, the dogs with similar and higher doses showed pulmonary tumors primarily in brochiolo-alveolar, peripheral and subpleural alveolar regions. The TUNEL assay showed slight elevation of apoptosis in tracheal mucosa, tumor cells, and nuclear debris was present in the inflammatory regions of alveoli and lymph nodes of both the human and the dogs. The expression of apoptosis and a number of chemokine/cytokine genes was slightly but not significantly elevated in protein or gene levels compared to that of the control samples. In the beagles, mucous production was increased in the airway epithelial goblet cells and glands of trachea, and a number of chemokine/cytokine genes showed positive immunoreactivity. This analysis of archival tissue from an accidentally exposed worker and in a large animal model provides valuable information on the effects of long-term retention of plutonium in the respiratory tract and the histological evaluation study may impact mechanistic studies of radiation carcinogenesis.

  18. Response of TLD-albedo and nuclear track dosimeters exposed to plutonium sources

    SciTech Connect (OSTI)

    Brackenbush, L.W.; Baumgartner, W.V.; Fix, J.J.

    1991-12-01T23:59:59.000Z

    Neutron dosimetry has been extensively studied at Hanford since the mid-1940s. At the present time, Hanford contractors use thermoluminescent dosimeter (TLD)-albedo dosimeters to record the neutron dose equivalent received by workers. The energy dependence of the TLD-albedo dosimeter has been recognized and documented since introduced at Hanford in 1964 and numerous studies have helped assure the accuracy of dosimeters. With the recent change in Hanford's mission, there has been a significant decrease in the handling of plutonium tetrafluoride, and an increase in the handling of plutonium metal and plutonium oxide sources. This study was initiated to document the performance of the current Hanford TLD-albedo dosimeter under the low scatter conditions of the calibration laboratory and under the high scatter conditions in the work place under carefully controlled conditions at the Plutonium Finishing Plant (PFP). The neutron fields at the PFP facility were measured using a variety of instruments, including a multisphere spectrometer, tissue equivalent proportional counters, and specially calibrated rem meters. Various algorithms were used to evaluate the TLD-albedo dosimeters, and the results are given in this report. Using current algorithms, the dose equivalents evaluated for bare sources and sources with less than 2.5 cm (1 in.) of acrylic plastic shielding in high scatter conditions typical of glove box operations are reasonably accurate. Recently developed CR-39 track etch dosimeters (TEDs) were also exposed in the calibration laboratory and at the PFP. The results indicate that the TED dosimeters are quite accurate for both bare and moderated neutron sources. Until personnel dosimeter is available that incorporates a direct measure of the neutron dose to a person, technical uncertainties in the accuracy of the recorded data will continue.

  19. Response of TLD-albedo and nuclear track dosimeters exposed to plutonium sources

    SciTech Connect (OSTI)

    Brackenbush, L.W.; Baumgartner, W.V.; Fix, J.J.

    1991-12-01T23:59:59.000Z

    Neutron dosimetry has been extensively studied at Hanford since the mid-1940s. At the present time, Hanford contractors use thermoluminescent dosimeter (TLD)-albedo dosimeters to record the neutron dose equivalent received by workers. The energy dependence of the TLD-albedo dosimeter has been recognized and documented since introduced at Hanford in 1964 and numerous studies have helped assure the accuracy of dosimeters. With the recent change in Hanford`s mission, there has been a significant decrease in the handling of plutonium tetrafluoride, and an increase in the handling of plutonium metal and plutonium oxide sources. This study was initiated to document the performance of the current Hanford TLD-albedo dosimeter under the low scatter conditions of the calibration laboratory and under the high scatter conditions in the work place under carefully controlled conditions at the Plutonium Finishing Plant (PFP). The neutron fields at the PFP facility were measured using a variety of instruments, including a multisphere spectrometer, tissue equivalent proportional counters, and specially calibrated rem meters. Various algorithms were used to evaluate the TLD-albedo dosimeters, and the results are given in this report. Using current algorithms, the dose equivalents evaluated for bare sources and sources with less than 2.5 cm (1 in.) of acrylic plastic shielding in high scatter conditions typical of glove box operations are reasonably accurate. Recently developed CR-39 track etch dosimeters (TEDs) were also exposed in the calibration laboratory and at the PFP. The results indicate that the TED dosimeters are quite accurate for both bare and moderated neutron sources. Until personnel dosimeter is available that incorporates a direct measure of the neutron dose to a person, technical uncertainties in the accuracy of the recorded data will continue.

  20. Hematological findings in neotropical fish Hoplias malabaricus exposed to subchronic and dietary doses of methylmercury, inorganic lead, and tributyltin chloride

    SciTech Connect (OSTI)

    Oliveira Ribeiro, C.A. [Departamento de Biologia Celular, Universidade Federal do Parana, CP. 19031, CEP: 81.531-990 Curitiba, PR (Brazil)]. E-mail: ciro@ufpr.br; Filipak Neto, F. [Departamento de Biologia Celular, Universidade Federal do Parana, CP. 19031, CEP: 81.531-990 Curitiba, PR (Brazil); Mela, M. [Departamento de Biologia Celular, Universidade Federal do Parana, CP. 19031, CEP: 81.531-990 Curitiba, PR (Brazil); Silva, P.H. [Departamento de Patologia Medica, Universidade Federal do Parana, CP. 19031, CEP: 81.531-990 Curitiba, PR (Brazil); Randi, M.A.F. [Departamento de Patologia Medica, Universidade Federal do Parana, CP. 19031, CEP: 81.531-990 Curitiba, PR (Brazil); Rabitto, I.S. [Departamento de Biologia Celular, Universidade Federal do Parana, CP. 19031, CEP: 81.531-990 Curitiba, PR (Brazil); Alves Costa, J.R.M. [Departamento de Biologia Celular, Universidade Federal do Parana, CP. 19031, CEP: 81.531-990 Curitiba, PR (Brazil); Pelletier, E. [Institut des Sciences de la Mer de Rimouski, Universite du Quebec a Rimouski, 310 allee des Ursulines, Rimouski, Quebec, G5L 3A1 (Canada)

    2006-05-15T23:59:59.000Z

    Hematological indices are gaining general acceptance as valuable tools in monitoring various aspects the health of fish exposed to contaminants. In this work some effects of methyl mercury (MeHg), inorganic lead (Pb{sup 2+}), and tributyltin (TBT) in a tropical fish species were evaluated by hematological methods after a trophic exposition at a subchronic level. Forty-two mature individuals of the freshwater top predator fish Hoplias malabaricus were exposed to trophic doses (each 5 days) of MeHg (0.075 {mu}g g{sup -1}), Pb{sup 2+} (21 {mu}g g{sup -1}), and TBT (0.3 {mu}g g{sup -1}) using young fish Astyanax sp. as prey vehicle. After 14 successive doses over 70 days, blood was sampled from exposed and control groups to evaluate hematological effects of metals on erythrocytes, total leukocytes and differential leukocytes counts, hematocrit, hemoglobin concentration, and red blood cell indices mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC). Transmission electron microscopy and image analysis of erythrocytes were also used to investigate some morphometric parameters. Results show no significant effects in MCH and MCHC for all tested metals, but differences were found in erythrocytes, hemoglobin, hematocrit, MCV, and white blood cells counts. The number of leukocytes was increased in the presence of MeHg, suggesting effects on the immune system. Also the MCV increased in individuals exposed to MeHg. No ultrastructural damages were observed in red blood cells but the image analysis using light microscopy revealed differences in area, elongation, and roundness of erythrocytes from individuals exposed to Pb{sup 2+} and TBT but not in the group exposed to MeHg. The present work shows that changes in hematological and blood indices could highlight some barely detectable metal effects in fish after laboratory exposure to contaminated food, but their application in field biomonitoring using H. malabaricus will need more detailed studies and a careful consideration of environmental parameters.

  1. Responses of juvenile sea bass, Dicentrarchus labrax, exposed to acute concentrations of crude oil, as assessed by molecular and physiological biomarkers

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Responses of juvenile sea bass, Dicentrarchus labrax, exposed to acute concentrations of crude oil In the present study, juvenile sea bass were exposed for 48 and 96 h to an Arabian light crude oil to assess i) the short term effects of crude oil exposure by the measurement of several molecular biomarkers

  2. Hematotoxicity in Workers Exposed to Low Levels of Benzene Qing Lan1,*, Luoping Zhang2,*, Guilan Li3, Roel Vermeulen1, Rona S. Weinberg4, Mustafa

    E-Print Network [OSTI]

    California at Berkeley, University of

    Hematotoxicity in Workers Exposed to Low Levels of Benzene Qing Lan1,*, Luoping Zhang2,*, Guilan Li for Cancer Research, NCI, NIH, DHHS, Bethesda, MD 20892, USA. Abstract Benzene is known to have toxic effects million (ppm) remains uncertain. In a study of 250 workers exposed to benzene, white blood cell

  3. Analysis of HLA-DP association with beryllium disease susceptibility in pooled exposed populations

    SciTech Connect (OSTI)

    Cesare Saltini, Massimo Amicosante

    2009-12-19T23:59:59.000Z

    Berylliosis or Chronic Beryllium Disease is a chronic granulomatous disorder primarily involving the lung associated with the exposition to low doses of Beryllium (Be) in the workplace. Berylliosis risk has been associated with the presence of a glutamate at position 69 of the HLA-DP beta chain (HLA-DPbetaGlu69) that is expressed in about 97% of disease cases and in 27% of the unaffected Be-exposed controls (p<0.0001) (Richeldi et al. Science 1993; 262: 242-244.12). Since this first observation of an immunogenetic association between berylliosis and HLA-DPbetaGlu69 a number of studies have confirmed the role of this marker as the primary gene of susceptibility of berylliosis (Richeldi et al Am J Ind Med. 1997; 32:337-40; Wang et al J. Immunol. 1999; 163: 1647-53; Saltini et al Eur Respir J. 2001 18:677-84; Rossman et al Am J Respir Crit Care Med. 2002 165:788-94). Moreover, a structure/function interaction between HLA-DP molecules carrying Glu69 and beryllium in driving and developing the immune response against beryllium itself has been observed as: (1) Be-specific T-cells clones obtained from berylliosis patients recognize beryllium as antigen only when presented in the context of the HLA-DP{beta}Glu69 molecules but not in the context of HLA-DP allelic variants carrying Lys69 (Lombardi G et al. J Immunol 2001; 166: 3549-3555), and (2) beryllium presents an affinity for the HLA-DP2, carrying the berylliosis marker of susceptibility HLA-DPGlu69, from 40 to 100 times higher that the HLA-DP molecule carrying Lys69 (Amicosante M. et al Hum. Immunol. 2001; 62: 686-93). However, although the immunogenetic studies performed have been addressed a number of different questions about the genetic association between berylliosis and/or beryllium sensitization, exposure levels to beryllium and HLA markers, a number of questions are still open in the field mainly due to the limitation imposed by the low number of subjects carrying berylliosis or beryllium sensitization enrolled in each immunogenetic study. In this context, the populations of the study already performed in this field by the University of Modena and Rome (by Prof. C. Saltini) and the University of Pennsylvania (by Prof. M. Rossman) have been evaluated by using similar HLA molecular typing methodologies and that both populations have now been followed up for a period of 4 to 7 years. The general objective of this study has to generate a larger data base comprising the two population with which analyze gene disease association with greater statistical power and ascertain the effect of lesser common gener variants which may be missed when analyzing associations on small populations. In particular addressing the role suggested in previous study such as: (1) the role of HLA-DP rare alleles and polymorphisms, and (2) the role of the HLA markers in disease progression from sensitization. The two populations from the already published studies (Saltini et al Eur Respir J. 2001 18:677-84; Rossman et al Am J Respir Crit Care Med. 2002 165:788-94) present similar aspects about: ethnicity, type and length of exposure to Be dust, a broadly similar association between beryllium related abnormalities and HLA. The two population have been pooled and evaluated using common criteria of diagnosis (Sensitized subject: at least 2 positive BeLPT tests each with 2 positive wells; CBD-affected subject: identification of well formed non-caseating granulomas on biopsy), follow up and HLA typing technique (complete HLA-DRB, DQB, DPB high resolution typing using amplification with sequence specific primers or sequence based typing). The two populations included 137 subjects with Beryllium hypersensitized (BH) and 155 Be-exposed controls. Inclusion criteria were met by one hundred and six subjects with Be-hypersensitivity of whom 55 were affected by CBD (age 52 {+-} 11 years; 50 caucasians, 2 African-Americans 2 Hispanics and 1 Asian; 46 males and 9 females; mean duration of Be-exposure 15 {+-} 9 years) and 51 showed Be-sensitization without lung granulomas detected by trans-bronchial biopsy (ag

  4. MEMS packaging with etching and thinning of lid wafer to form lids and expose device wafer bond pads

    DOE Patents [OSTI]

    Chanchani, Rajen; Nordquist, Christopher; Olsson, Roy H; Peterson, Tracy C; Shul, Randy J; Ahlers, Catalina; Plut, Thomas A; Patrizi, Gary A

    2013-12-03T23:59:59.000Z

    In wafer-level packaging of microelectromechanical (MEMS) devices a lid wafer is bonded to a MEMS wafer in a predermined aligned relationship. Portions of the lid wafer are removed to separate the lid wafer into lid portions that respectively correspond in alignment with MEMS devices on the MEMS wafer, and to expose areas of the MEMS wafer that respectively contain sets of bond pads respectively coupled to the MEMS devices.

  5. Genotoxicity and apoptosis in Drosophila melanogaster exposed to benzene, toluene and xylene: Attenuation by quercetin and curcumin

    SciTech Connect (OSTI)

    Singh, Mahendra P. [Embryotoxicology Section, Indian Institute of Toxicology Research (CSIR), Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (India); Mishra, M.; Sharma, A.; Shukla, A.K. [Embryotoxicology Section, Indian Institute of Toxicology Research (CSIR), Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (India); Council of Scientific and Industrial Research (CSIR), New Delhi (India); Mudiam, M.K.R.; Patel, D.K. [Analytical Chemistry Section, Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh (India); Council of Scientific and Industrial Research (CSIR), New Delhi (India); Ram, K. Ravi [Embryotoxicology Section, Indian Institute of Toxicology Research (CSIR), Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (India); Council of Scientific and Industrial Research (CSIR), New Delhi (India); Chowdhuri, D. Kar, E-mail: dkarchowdhuri@rediffmail.com [Embryotoxicology Section, Indian Institute of Toxicology Research (CSIR), Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh (India); Council of Scientific and Industrial Research (CSIR), New Delhi (India)

    2011-05-15T23:59:59.000Z

    Monocyclic aromatic hydrocarbons (MAHs) such as benzene, toluene and xylene are being extensively used for various industrial and household purposes. Exposure to these hydrocarbons, occupationally or non-occupationally, is harmful to organisms including human. Several studies tested for toxicity of benzene, toluene and xylene, and interestingly, only a few studies looked into the attenuation. We used Drosophila model to test the genotoxic and apoptotic potential of these compounds and subsequently evaluated the efficiency of two phytochemicals, namely, quercetin and curcumin in attenuating test chemical induced toxicity. We exposed third instar larvae of wild type Drosophila melanogaster (Oregon R{sup +}) to 1.0-100.0 mM benzene, toluene or xylene, individually, for 12, 24 and 48 h and examined their apoptotic and genotoxic potential. We observed significantly (P < 0.001) increased apoptotic markers and genotoxicity in a concentration- and time-dependent manner in organisms exposed to benzene, toluene or xylene. We also observed significantly (P < 0.001) increased cytochrome P450 activity in larvae exposed to test chemicals and this was significantly reduced in the presence of 3',4'-dimethoxyflavone, a known Aryl hydrocarbon receptor (AhR) blocker. Interestingly, we observed a significant reduction in cytochrome P450 activity, GST levels, oxidative stress parameters, genotoxic and apoptotic endpoints when organisms were exposed simultaneously to test chemical along with quercetin or curcumin. The study further suggests the suitability of D. melanogaster as an alternate animal model for toxicological studies involving benzene, toluene and xylene and its potential in studying the protective role(s) of phytochemicals.

  6. Maxim > App Notes > BATTERY MANAGEMENT INTERFACE CIRCUITS Keywords: USB, USB Charger, Li+ USB charger, Lithium Ion USB charger, NiMH USB charger, USB battery

    E-Print Network [OSTI]

    Allen, Jont

    charger, Lithium Ion USB charger, NiMH USB charger, USB battery charger, charging batteries from USB, and cabling. An overview of nickel metal hydride (NiMH) and lithium battery technologies, charging methodsMaxim > App Notes > BATTERY MANAGEMENT INTERFACE CIRCUITS Keywords: USB, USB Charger, Li+ USB

  7. IN 2013 IEEE 56TH GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM'2013), ATLANTA, USA, DECEMBER 2013 1 Maximizing Energy-Efficiency in Multi-Relay

    E-Print Network [OSTI]

    the downlink (DL) EE maximization (EEM) problem in a multi-user, multi-relay, orthogonal frequency division]. However, these works have not solved the EEM problem, which has only recently become the center of attention in the community. In fact, the EEM problem can be viewed as an example of multi- objective

  8. Constructal multi-scale package of vertical channels with natural convection and maximal heat transfer density. CONSTRUCTAL DESIGN: THE GENERATION OF MULTI-SCALE HEAT

    E-Print Network [OSTI]

    Kihm, IconKenneth David

    transfer density. CONSTRUCTAL DESIGN: THE GENERATION OF MULTI-SCALE HEAT AND FLUID FLOW STRUCTURES-scale structures in natural convection with the objective of maximizing the heat transfer density, or the heat transfer rate per unit of volume§ . The flow volume is filled with vertical equidistant heated blades

  9. Pulmonary function and symptoms of Nigerian workers exposed to carbon black in dry cell battery and tire factories

    SciTech Connect (OSTI)

    Oleru, U.G.; Elegbeleye, O.O.; Enu, C.C.; Olumide, Y.M.

    1983-02-01T23:59:59.000Z

    The pulmonary function and symptoms of 125 workers exposed to carbon black in dry cell battery and tire manufacturing plants were investigated. There was no significant difference in the pulmonary function of the subjects in the two plants. There was good agreement in the symptoms reported in the two different factories: cough with phlegm production, tiredness, chest pain, catarrh, headache, and skin irritation. The symptoms also corroborate those reported in the few studies on the pulmonary effects of carbon black. The suspended particulate levels in the dry cell battery plant ranged from 25 to 34 mg/m/sup 3/ and the subjects with the highest probable exposure level had the most impaired pulmonary function. The pulmonary function of the exposed subjects was significantly lower than that of a control, nonindustrially exposed population. The drop in the lung function from the expected value per year of age was relatively constant for all the study subgroups but the drop per year of duration of employment was more severe in the earlier years of employment. This study has underscored the need for occupational health regulations in the industries of developing countries.

  10. Batch Strategies for Maximizing

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

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

  11. Batch Strategies for Maximizing

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

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

  12. EE Maximization Tool

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEA :Work with E=mc2 - What's the Speed of

  13. Maximizing Storage Rate and Capacity and Insuring the Environmental Integrity of Carbon Dioxide Sequestration in Geological Reservoirs

    SciTech Connect (OSTI)

    L.A. Davis; A.L. Graham; H.W. Parker; J.R. Abbott; M.S. Ingber; A.A. Mammoli; L.A. Mondy; Quanxin Guo; Ahmed Abou-Sayed

    2005-12-07T23:59:59.000Z

    Maximizing Storage Rate and Capacity and Insuring the Environmental Integrity of Carbon Dioxide Sequestration in Geological Formations The U.S. and other countries may enter into an agreement that will require a significant reduction in CO2 emissions in the medium to long term. In order to achieve such goals without drastic reductions in fossil fuel usage, CO2 must be removed from the atmosphere and be stored in acceptable reservoirs. The research outlined in this proposal deals with developing a methodology to determine the suitability of a particular geologic formation for the long-term storage of CO2 and technologies for the economical transfer and storage of CO2 in these formations. A novel well-logging technique using nuclear-magnetic resonance (NMR) will be developed to characterize the geologic formation including the integrity and quality of the reservoir seal (cap rock). Well-logging using NMR does not require coring, and hence, can be performed much more quickly and efficiently. The key element in the economical transfer and storage of the CO2 is hydraulic fracturing the formation to achieve greater lateral spreads and higher throughputs of CO2. Transport, compression, and drilling represent the main costs in CO2 sequestration. The combination of well-logging and hydraulic fracturing has the potential of minimizing these costs. It is possible through hydraulic fracturing to reduce the number of injection wells by an order of magnitude. Many issues will be addressed as part of the proposed research to maximize the storage rate and capacity and insure the environmental integrity of CO2 sequestration in geological formations. First, correlations between formation properties and NMR relaxation times will be firmly established. A detailed experimental program will be conducted to determine these correlations. Second, improved hydraulic fracturing models will be developed which are suitable for CO2 sequestration as opposed to enhanced oil recovery (EOR). Although models that simulate the fracturing process exist, they can be significantly improved by extending the models to account for nonsymmetric, nonplanar fractures, coupling the models to more realistic reservoir simulators, and implementing advanced multiphase flow models for the transport of proppant. Third, it may be possible to deviate from current hydraulic fracturing technology by using different proppants (possibly waste materials that need to be disposed of, e.g., asbestos) combined with different hydraulic fracturing carrier fluids (possibly supercritical CO2 itself). Because current technology is mainly aimed at enhanced oil recovery, it may not be ideally suited for the injection and storage of CO2. Finally, advanced concepts such as increasing the injectivity of the fractured geologic formations through acidization with carbonated water will be investigated. Saline formations are located through most of the continental United States. Generally, where saline formations are scarce, oil and gas reservoirs and coal beds abound. By developing the technology outlined here, it will be possible to remove CO2 at the source (power plants, industry) and inject it directly into nearby geological formations, without releasing it into the atmosphere. The goal of the proposed research is to develop a technology capable of sequestering CO2 in geologic formations at a cost of US $10 per ton.

  14. Expectation-maximization algorithms for learning a finite mixture of univariate survival time distributions from partially specified class values

    SciTech Connect (OSTI)

    Lee, Youngrok [Ames Laboratory

    2013-05-15T23:59:59.000Z

    Heterogeneity exists on a data set when samples from di#11;erent classes are merged into the data set. Finite mixture models can be used to represent a survival time distribution on heterogeneous patient group by the proportions of each class and by the survival time distribution within each class as well. The heterogeneous data set cannot be explicitly decomposed to homogeneous subgroups unless all the samples are precisely labeled by their origin classes; such impossibility of decomposition is a barrier to overcome for estimating #12;nite mixture models. The expectation-maximization (EM) algorithm has been used to obtain maximum likelihood estimates of #12;nite mixture models by soft-decomposition of heterogeneous samples without labels for a subset or the entire set of data. In medical surveillance databases we can find partially labeled data, that is, while not completely unlabeled there is only imprecise information about class values. In this study we propose new EM algorithms that take advantages of using such partial labels, and thus incorporate more information than traditional EM algorithms. We particularly propose four variants of the EM algorithm named EM-OCML, EM-PCML, EM-HCML and EM-CPCML, each of which assumes a specific mechanism of missing class values. We conducted a simulation study on exponential survival trees with five classes and showed that the advantages of incorporating substantial amount of partially labeled data can be highly signi#12;cant. We also showed model selection based on AIC values fairly works to select the best proposed algorithm on each specific data set. A case study on a real-world data set of gastric cancer provided by Surveillance, Epidemiology and End Results (SEER) program showed a superiority of EM-CPCML to not only the other proposed EM algorithms but also conventional supervised, unsupervised and semi-supervised learning algorithms.

  15. Fallout: The experiences of a medical team in the care of a Marshallese population accidentally exposed to fallout radiation

    SciTech Connect (OSTI)

    Conard, R.A.

    1991-01-01T23:59:59.000Z

    This report presents an historical account of the experiences of the Brookhaven Medical team in the examination and treatment of the Marshallese people following their accidental exposure to radioactive fallout in 1954. This is the first time that a population has been heavily exposed to radioactive fallout, and even though this was a tragic mishap, the medical findings have provided valuable information for other accidents involving fallout such as the recent reactor accident at Chernobyl. Particularly important has been the unexpected importance of radioactive iodine in the fallout in producing thyroid abnormalities.

  16. Fallout: The experiences of a medical team in the care of a Marshallese population accidentally exposed to fallout radiation

    SciTech Connect (OSTI)

    Conard, R.A.

    1991-12-31T23:59:59.000Z

    This report presents an historical account of the experiences of the Brookhaven Medical team in the examination and treatment of the Marshallese people following their accidental exposure to radioactive fallout in 1954. This is the first time that a population has been heavily exposed to radioactive fallout, and even though this was a tragic mishap, the medical findings have provided valuable information for other accidents involving fallout such as the recent reactor accident at Chernobyl. Particularly important has been the unexpected importance of radioactive iodine in the fallout in producing thyroid abnormalities.

  17. Fallout: The experiences of a medical team in the care of a Marshallese population accidently exposed to fallout radiation

    SciTech Connect (OSTI)

    Conard, R.A.

    1992-09-01T23:59:59.000Z

    This report presents an historical account of the experiences of the Brookhaven Medical Team in the examination and treatment of the Marshallese people following their accidental exposure to radioactive fallout in 1954. This is the first time that a population has been heavily exposed to radioactive fallout, and even though this was a tragic mishap, the medical findings have provided valuable information for other accidents involving fallout such as the recent reactor accident at Chernobyl. Noteworthy has been the unexpected importance of radioactive iodine in the fallout in producing thyroid abnormalities.

  18. Efficient quantum circuits for perfect and controlled teleportation of n-qubit non-maximally entangled states of generalized Bell-type

    E-Print Network [OSTI]

    Anirban Pathak; Anindita Banerjee

    2010-06-05T23:59:59.000Z

    An efficient and economical scheme is proposed for the perfect quantum teleportation of n-qubit non-maximally entangled state of generalized Bell-type. A Bell state is used as the quantum channel in the proposed scheme. It is also shown that the controlled teleportation of this n-qubit state can be achieved by using a GHZ state or a GHZ-like state as quantum channel. The proposed schemes are economical because for the perfect and controlled teleportation of n-qubit non-maximally entangled state of generalized Bell-type we only need a Bell state and a tripartite entangled state respectively. It is also established that there exists a family of 12 orthogonal tripartite GHZ-like states which can be used as quantum channel for controlled teleportation. The proposed protocols are critically compared with the existing protocols.

  19. The Role of Peer Deviance and Social Support in the Development of Symptoms of Internalizing Disorders among Youth Exposed to Hurricane Georges

    E-Print Network [OSTI]

    Schwartz, Sonia Lynne

    2011-04-26T23:59:59.000Z

    Adolescents exposed to hurricanes may be at risk to develop symptoms of internalizing disorders. The impact of hurricane exposure on peer systems may contribute to the emergence of symptoms of internalizing disorders. This study examined...

  20. Integration of the predictions of two models with dose measurements in a1 case study of children exposed to the emissions of a lead smelter2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    exposed to the emissions of a lead smelter2 Abstract3 The predictions of two source-to-dose models lead smelter. Both5 models were built up from several sub-models linked together and run using Monte

  1. Evaluation of the serum catalase and myeloperoxidase activities in chronic arsenic-exposed individuals and concomitant cytogenetic damage

    SciTech Connect (OSTI)

    Banerjee, Mayukh; Banerjee, Nilanjana; Ghosh, Pritha [Molecular and Human Genetics Division, Indian Institute of Chemical Biology, Kolkata (India); Das, Jayanta K. [Department of Dermatology, West Bank Hospital, Howrah (India); Basu, Santanu [Department of General Medicine, Sri Aurobindo Seva Kendra, Kolkata (India); Sarkar, Ajoy K. [Peerless Hospital and B.K Roy Research Centre, Kolkata (India); States, J. Christopher, E-mail: jcstates@louisville.ed [Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY (United States); Center for Environmental Genomics and Integrative Biology, University of Louisville, Louisville, KY (United States); Giri, Ashok K., E-mail: akgiri15@yahoo.co [Molecular and Human Genetics Division, Indian Institute of Chemical Biology, Kolkata (India)

    2010-11-15T23:59:59.000Z

    Chronic arsenic exposure through contaminated drinking water is a major environmental health issue. Chronic arsenic exposure is known to exert its toxic effects by a variety of mechanisms, of which generation of reactive oxygen species (ROS) is one of the most important. A high level of ROS, in turn, leads to DNA damage that might ultimately culminate in cancer. In order to keep the level of ROS in balance, an array of enzymes is present, of which catalase (CAT) and myeloperoxidase (MPO) are important members. Hence, in this study, we determined the activities of these two enzymes in the sera and chromosomal aberrations (CA) in peripheral blood lymphocytes in individuals exposed and unexposed to arsenic in drinking water. Arsenic in drinking water and in urine was used as a measure of exposure. Our results show that individuals chronically exposed to arsenic have significantly higher CAT and MPO activities and higher incidence of CA. We found moderate positive correlations between CAT and MPO activities, induction of CA and arsenic in urine and water. These results indicate that chronic arsenic exposure causes higher CAT and MPO activities in serum that correlates with induction of genetic damage. We conclude that the serum levels of these enzymes might be used as biomarkers of early arsenic exposure induced disease much before the classical dermatological symptoms of arsenicosis begin to appear.

  2. High-temperature-oxidation-induced ordered structure in Inconel 939 superalloy exposed to oxy-combustion environments

    SciTech Connect (OSTI)

    Zhu, Jingxi; Wise, Adam; Nuhfer, Thomas; Holcomb, Gordon R.; Jablonski, Paul D.; Sridhar, Seetharaman; Laughlin, David E.

    2013-04-20T23:59:59.000Z

    In the integrated oxy-fuel combustion and turbine power generation system, turbine alloys are exposed to high temperature and an atmosphere comprised of steam, CO2 and O2. While surface and internal oxidation of the alloy takes place, the microstructure in the subsurface region also changes due to oxidation that results in the loss of the strengthening precipitates. In an earlier study of the oxidation of Inconel 939 Ni-based superalloy exposed to oxy-fuel combustion environment for up to 1000 hours, a high-temperature-oxidation-induced phase transformation in the sub-surface region was noticed and a two-phase region formed at the expense of strengthening ?' phase. While one of the two phases was identified as the Ni-matrix (? solid solution, face-center-cubic) phase, the other product phase remained unidentified. In this study, the crystal structure of the unknown phase and its orientation relationship with the parent Ni-matrix phase was investigated through electron diffraction and high-resolution transmission electron microscopy. It was determined that the crystal structure of the unknown phase could be modeled as a ternary derivative of the ordered ?-Ni3Ti phase (D024) structure with lattice parameters of a = 0.5092 nm and c = 0.8336 nm, ? = 90º, ? = 90º and ? = 120º.

  3. AIR AND RADON PATHWAY MODELING FOR THE F-AREA TANK FARM

    SciTech Connect (OSTI)

    Dixon, K; Mark Phifer, M

    2007-09-17T23:59:59.000Z

    The F-Area Tank Farm (FTF) is located within F-Area in the General Separations Area (GSA) of the Savannah River Site (SRS) as seen in Figure 1. The GSA contains the F and H Area Separations Facilities, the S-Area Defense Waste Processing Facility, the Z-Area Saltstone Facility, and the E-Area Low-Level Waste Disposal Facilities. The FTF is a nearly rectangular shaped area and comprises approximately 20 acres, which is bounded by SRS coordinates N 76,604.5 to N 77,560.0 and E 52,435.0 to E 53,369.0. SRS is in the process of preparing a Performance Assessment (PA) to support FTF closure. As part of the PA process, an analysis was conducted to evaluate the potential magnitude of gaseous release of radionuclides from the FTF over the 100-year institutional control period and 10,000-year post-closure compliance period. Specifically, an air and radon pathways analysis has been conducted to estimate the flux of volatile radionuclides and radon at the ground surface due to residual waste remaining in the tanks following closure. This analysis was used as the basis to estimate the dose to the maximally exposed individual (MEI) for the air pathway per Curie (Ci) of each radionuclide remaining in the combined FTF waste tanks. For the air pathway analysis, several gaseous radionuclides were considered. These included carbon-14 (C-14), chlorine-36 (Cl-36), iodine-129 (I-129), selenium-79 (Se-79), antimony-125 (Sb-125), tin-126 (Sn-126), tritium (H-3), and technetium-99 (Tc-99). The dose to the MEI was estimated at the SRS Boundary during the 100 year institutional control period. For the 10,000 year post closure compliance period, the dose to the MEI was estimated at the 100 m compliance point. For the radon pathway analysis, five parent radionuclides and their progeny were analyzed. These parent radionuclides included uranium-238 (U-238), plutonium-238 (Pu-238), uranium-234 (U-234), thorium-230 (Th-230), and radium-226 (Ra-226). The peak flux of radon-222 due to each parent radionuclide was estimated for the simulation period of 10,100 years.

  4. Cardiovascular changes in unanesthetized and ketamine-anesthetized Sprague-Dawley rats exposed to 2. 8-GHz radiofrequency radiation

    SciTech Connect (OSTI)

    Jauchem, J.R.; Frei, M.R. (United States Air Force School of Aerospace Medicine, Brooks Air Force Base, TX (USA))

    1991-01-01T23:59:59.000Z

    Sprague-Dawley rats were exposed to 2.8-GHz radiofrequency radiation, first while unanesthetized and then while anesthetized with ketamine (150 mg/kg.I.M.). Irradiation at a power density of 60 mW/cm2 (whole-body average specific absorption rate of approximately 14 W/kg) was conducted for sufficient duration to increase colonic temperature from 38.5 to 39.5 degrees C. The time required for the temperature increase was significantly longer in the anesthetized state. During irradiation, heart rate increased significantly both with and without anesthesia, while mean arterial blood pressure increased only when the rats were unanesthetized. The heart rate increase in the anesthetized state contrasts with a lack of change in a previous study of Fischer rats. This difference between anesthetized Sprague-Dawley and Fischer rats should be considered when comparing cardiovascular data obtained from these two strains of rats.

  5. Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Final Report

    SciTech Connect (OSTI)

    Hardage, Bob A; DeAngelo, Michael V; Ermolaeva, Elena; Hardage, Bob A; Remington, Randy; Sava, Diana; Wagner, Donald; Wei, Shuijion

    2013-02-28T23:59:59.000Z

    The objective of our research was to develop and demonstrate seismic data-acquisition and data-processing technologies that allow geothermal prospects below high-velocity rock outcrops to be evaluated. To do this, we acquired a 3-component seismic test line across an area of exposed high-velocity rocks in Brewster County, Texas, where there is high heat flow and surface conditions mimic those found at numerous geothermal prospects. Seismic contractors have not succeeded in creating good-quality seismic data in this area for companies who have acquired data for oil and gas exploitation purposes. Our test profile traversed an area where high-velocity rocks and low-velocity sediment were exposed on the surface in alternating patterns that repeated along the test line. We verified that these surface conditions cause non-ending reverberations of Love waves, Rayleigh waves, and shallow critical refractions to travel across the earth surface between the boundaries of the fast-velocity and slow-velocity material exposed on the surface. These reverberating surface waves form the high level of noise in this area that does not allow reflections from deep interfaces to be seen and utilized. Our data-acquisition method of deploying a box array of closely spaced geophones allowed us to recognize and evaluate these surface-wave noise modes regardless of the azimuth direction to the surface anomaly that backscattered the waves and caused them to return to the test-line profile. With this knowledge of the surface-wave noise, we were able to process these test-line data to create P-P and SH-SH images that were superior to those produced by a skilled seismic data-processing contractor. Compared to the P-P data acquired along the test line, the SH-SH data provided a better detection of faults and could be used to trace these faults upward to the boundaries of exposed surface rocks. We expanded our comparison of the relative value of S-wave and P-wave seismic data for geothermal applications by inserting into this report a small part of the interpretation we have done with 3C3D data across Wister geothermal field in the Imperial Valley of California. This interpretation shows that P-SV data reveal faults (and by inference, also fractures) that cannot be easily, or confidently, seen with P-P data, and that the combination of P-P and P-SV data allows VP/VS velocity ratios to be estimated across a targeted reservoir interval to show where an interval has more sandstone (the preferred reservoir facies). The conclusion reached from this investigation is that S-wave seismic technology can be invaluable to geothermal operators. Thus we developed a strong interest in understanding the direct-S modes produced by vertical-force sources, particularly vertical vibrators, because if it can be demonstrated that direct-S modes produced by vertical-force sources can be used as effectively as the direct-S modes produced by horizontal-force sources, geothermal operators can acquire direct-S data across many more prospect areas than can be done with horizontal-force sources, which presently are limited to horizontal vibrators. We include some of our preliminary work in evaluating direct-S modes produced by vertical-force sources.

  6. Examinations of Oxidation and Sulfidation of Grain Boundaries in Alloy 600 Exposed to Simulated Pressurized Water Reactor Primary Water

    SciTech Connect (OSTI)

    Schreiber, Daniel K.; Olszta, Matthew J.; Saxey, David W.; Kruska, Karen; Moore, K. L.; Lozano-Perez, Sergio; Bruemmer, Stephen M.

    2013-06-01T23:59:59.000Z

    High-resolution characterizations of intergranular attack in alloy 600 (Ni-17Cr-9Fe) exposed to 325 °C simulated pressurized water reactor (PWR) primary water have been conducted using a combination of scanning electron microscopy, NanoSIMS, analytical transmission electron microscopy and atom probe tomography. The intergranular attack exhibited a two-stage microstructure that consisted of continuous corrosion/oxidation to a depth of ~200 nm from the surface followed by discrete Cr-rich sulfides to a further depth of ~500 nm. The continuous oxidation region contained primarily nanocrystalline MO-structure oxide particles and ended at Ni-rich, Cr-depleted grain boundaries with spaced CrS precipitates. Three-dimensional characterization of the sulfidized region using site-specific atom probe tomography revealed extraordinary grain boundary composition changes, including total depletion of Cr across a several nm wide dealloyed zone as a result of grain boundary migration.

  7. Evaluation of the effect of organic pro-degradant concentration in polypropylene exposed to the natural ageing

    SciTech Connect (OSTI)

    Montagna, L. S., E-mail: larissambiental@yahoo.com.br, E-mail: andrecatto@terra.com.br, E-mail: katiandry@hotmail.com, E-mail: mmcforte@hotmail.com, E-mail: ruth.santana@ufrgs.br; Catto, A. L., E-mail: larissambiental@yahoo.com.br, E-mail: andrecatto@terra.com.br, E-mail: katiandry@hotmail.com, E-mail: mmcforte@hotmail.com, E-mail: ruth.santana@ufrgs.br; Rossini, K., E-mail: larissambiental@yahoo.com.br, E-mail: andrecatto@terra.com.br, E-mail: katiandry@hotmail.com, E-mail: mmcforte@hotmail.com, E-mail: ruth.santana@ufrgs.br; Forte, M. M. C., E-mail: larissambiental@yahoo.com.br, E-mail: andrecatto@terra.com.br, E-mail: katiandry@hotmail.com, E-mail: mmcforte@hotmail.com, E-mail: ruth.santana@ufrgs.br; Santana, R. M. C., E-mail: larissambiental@yahoo.com.br, E-mail: andrecatto@terra.com.br, E-mail: katiandry@hotmail.com, E-mail: mmcforte@hotmail.com, E-mail: ruth.santana@ufrgs.br [Engineering School/Laboratory of Polymeric Materials, Federal University of Rio Grande do Sul, Porto Alegre (Brazil)

    2014-05-15T23:59:59.000Z

    The production and consumption of plastics in the last decade has recorded a remarkable increase in the scientific and industrial interest in environmentally degradable polymer (EDPs). Polymers wastes are deposited improperly, such as dumps, landfills, rivers and seas, causing a serious problem by the accumulation in the environment. The abiotic processes, like the photodegradation, are the most efficient occurring in the open environmental, where the polymers undergo degradation from the action of sunlight that result from direct exposure to solar radiation, however depend of the type of chemical ageing, which is the principal component of climatic ageing. The subject of this work is to study the influence of concentration of organic pro-degradant (1, 2 and 3 % w/w) in the polypropylene (PP) exposed in natural ageing. PP samples with and without the additive were processed in plates square form, obtained by thermal compression molding (TCM) using a press at 200°C under 2 tons for 5 min, and then were exposed at natural ageing during 120 days. The presence of organic additive influenced on PP degradability, this fact was assessed by changes in the thermal and morphology properties of the samples after 120 days of natural ageing. Scanning Electronic Microscopy (SEM) results of the morphological surface of the modified PP samples showed greater degradation photochemical oxidative when compared to neat PP, due to increase of rugosity and formation of microvoids. PP samples with different pro-degradant concentration under natural ageing presented a degree of crystallinity, obtained by Differential Scanning Calorimeter (DSC) increases in comparing the neat PP.

  8. Thermo-mechanical study of bare 48Y UF6 containers exposed to the regulatory fire environment.

    SciTech Connect (OSTI)

    Ammerman, Douglas James; Lopez, Carlos; Morrow, Charles; Korbmacher, Tim (Urenco Enrichment Co. Ltd., Gronau, Germany); Charette, Marc-Andre (Cameco Corporation, Port Hope, ON, Canada)

    2010-11-01T23:59:59.000Z

    Most of the regulatory agencies world-wide require that containers used for the transportation of natural UF6 and depleted UF6 must survive a fully-engulfing fire environment for 30 minutes as described in 10CFR71 and in TS-R-1. The primary objective of this project is to examine the thermo-mechanical performance of 48Y transportation cylinders when exposed to the regulatory hypothetical fire environment without the thermal protection that is currently used for shipments in those countries where required. Several studies have been performed in which UF6 cylinders have been analyzed to determine if the thermal protection currently used on UF6 cylinders of type 48Y is necessary for transport. However, none of them could clearly confirm neither the survival nor the failure of the 48Y cylinder when exposed to the regulatory fire environment without the additional thermal protection. A consortium of five companies that move UF6 is interested in determining if 48Y cylinders can be shipped without the thermal protection that is currently used. Sandia National Laboratories has outlined a comprehensive testing and analysis project to determine if these shipping cylinders are capable of withstanding the regulatory thermal environment without additional thermal protection. Sandia-developed coupled physics codes will be used for the analyses that are planned. A series of destructive and non-destructive tests will be performed to acquire the necessary material and behavior information to benchmark the models and to answer the question about the ability of these containers to survive the fire environment. Both the testing and the analysis phases of this project will consider the state of UF6 under thermal and pressure loads as well as the weakening of the steel container due to the thermal load. Experiments with UF6 are also planned to collect temperature- and pressure-dependent thermophysical properties of this material.

  9. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Maximizing Thermal Efficiency and

    E-Print Network [OSTI]

    and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Maximizing Thermal Efficiency energy management (AHEM), and energy storage systems, scientists uncover solutions for cost vehicle energy storage components and systems. Addressing Industry Challenges Industry seeks performance

  10. Elevated levels of plasma Big endothelin-1 and its relation to hypertension and skin lesions in individuals exposed to arsenic

    SciTech Connect (OSTI)

    Hossain, Ekhtear; Islam, Khairul; Yeasmin, Fouzia [Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205 (Bangladesh)] [Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205 (Bangladesh); Karim, Md. Rezaul [Department of Applied Nutrition and Food Technology, Islamic University, Kushtia-7003 (Bangladesh)] [Department of Applied Nutrition and Food Technology, Islamic University, Kushtia-7003 (Bangladesh); Rahman, Mashiur; Agarwal, Smita; Hossain, Shakhawoat; Aziz, Abdul; Al Mamun, Abdullah; Sheikh, Afzal; Haque, Abedul; Hossain, M. Tofazzal [Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205 (Bangladesh)] [Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205 (Bangladesh); Hossain, Mostaque [Department of Medicine, Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders (BIRDEM), Dhaka (Bangladesh)] [Department of Medicine, Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders (BIRDEM), Dhaka (Bangladesh); Haris, Parvez I. [Faculty of Health and Life Sciences, De Montfort University, Leicester, LE1 9BH (United Kingdom)] [Faculty of Health and Life Sciences, De Montfort University, Leicester, LE1 9BH (United Kingdom); Ikemura, Noriaki; Inoue, Kiyoshi; Miyataka, Hideki; Himeno, Seiichiro [Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770–8514 (Japan)] [Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770–8514 (Japan); Hossain, Khaled, E-mail: khossain69@yahoo.com [Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205 (Bangladesh)] [Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205 (Bangladesh)

    2012-03-01T23:59:59.000Z

    Chronic arsenic (As) exposure affects the endothelial system causing several diseases. Big endothelin-1 (Big ET-1), the biological precursor of endothelin-1 (ET-1) is a more accurate indicator of the degree of activation of the endothelial system. Effect of As exposure on the plasma Big ET-1 levels and its physiological implications have not yet been documented. We evaluated plasma Big ET-1 levels and their relation to hypertension and skin lesions in As exposed individuals in Bangladesh. A total of 304 study subjects from the As-endemic and non-endemic areas in Bangladesh were recruited for this study. As concentrations in water, hair and nails were measured by Inductively Coupled Plasma Mass Spectroscopy (ICP-MS). The plasma Big ET-1 levels were measured using a one-step sandwich enzyme immunoassay kit. Significant increase in Big ET-1 levels were observed with the increasing concentrations of As in drinking water, hair and nails. Further, before and after adjusting with different covariates, plasma Big ET-1 levels were found to be significantly associated with the water, hair and nail As concentrations of the study subjects. Big ET-1 levels were also higher in the higher exposure groups compared to the lowest (reference) group. Interestingly, we observed that Big ET-1 levels were significantly higher in the hypertensive and skin lesion groups compared to the normotensive and without skin lesion counterpart, respectively of the study subjects in As-endemic areas. Thus, this study demonstrated a novel dose–response relationship between As exposure and plasma Big ET-1 levels indicating the possible involvement of plasma Big ET-1 levels in As-induced hypertension and skin lesions. -- Highlights: ? Plasma Big ET-1 is an indicator of endothelial damage. ? Plasma Big ET-1 level increases dose-dependently in arsenic exposed individuals. ? Study subjects in arsenic-endemic areas with hypertension have elevated Big ET-1 levels. ? Study subjects with arsenic-induced skin lesions show elevated plasma Big ET-1 levels. ? Arsenic-induced hypertension and skin lesions may be linked to plasma Big ET-1 levels.

  11. Grouped exposed metal heaters

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, MY); Watkins, Ronnie Wade (Cypress, TX)

    2010-11-09T23:59:59.000Z

    A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

  12. Grouped exposed metal heaters

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, ML); Watkins, Ronnie Wade (Cypress, TX)

    2012-07-31T23:59:59.000Z

    A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

  13. Discontinuous phase formation and selective attack of SiC materials exposed to low oxygen partial pressure environments

    SciTech Connect (OSTI)

    Butt, D.P. [Los Alamos National Lab., NM (United States); Tressler, R.E.; Spear, K.E. [Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering

    1993-09-01T23:59:59.000Z

    Three SiC materials were exposed to gas mixtures containing N{sub 2}, H{sub 2}, and CO at 1000-1300C, 1-740 torr for a few to 1000 h. Kinetic and thermodynamic studies indicate that CO is the predominant oxidizing species. A variety of corrosion processes were observed, including surface and internal pit formation, needle growth, grain boundary attack, and attack of impurities and surrounding material. In the case of a siliconized SiC, impurities such as Ca, Al, and Fe diffused rapidly through the Si matrix forming complex calcium aluminosilicates on the surface, leaving behind internal voids. Evaluation of the mechanical properties, including fractography, revealed a variety of degradative phenomena. Efforts to identify causes of pit formation suggested that the overall process was complex. Pits formed during attack of grain boundaries and regions containing transition metal impurities. Studies of single crystals showed preferential attack near impurities and crystalline defects, indicating that damaged crystals or certain crystal orientations in the polycrystalline materials are susceptible to attack. In addition, under some conditions where pit formation was observed, the strength of certain materials increased apparently due to flaw healing. It is suggested that flaws can heal in the absence of mechanical stress due to their high surface energy. However, second phases observed within partially healed surface cracks suggest impurities also contribute to the flaw healing processes.

  14. Multi-criteria analysis of the mechanism of degradation of Portland cement based mortars exposed to external sulphate attack

    SciTech Connect (OSTI)

    El-Hachem, R.; Roziere, E.; Grondin, F.; Loukili, A., E-mail: ahmed.loukili@ec-nantes.fr

    2012-10-15T23:59:59.000Z

    This work aims to contribute to the design of durable concrete structures exposed to external sulphate attacks (ESA). Following a preliminary study aimed at designing a representative test, the present paper suggests a study on the effect of the water-to-cement (w/c) ratio and the cement composition in order to understand the degradation mechanisms. Length and mass measurements were registered continuously, leached calcium and hydroxide ions were also quantified. In parallel, scanning electron microscopy observations as well as X-ray microtomography were realised at different times to identify the formed products and the crack morphology. Test results provide information on the basic aspects of the degradation mechanism, such as the main role of leaching and diffusion in the sulphate attack process. The mortar composition with a low w/c ratio leads to a better resistance to sulphate attack because the microstructure is less permeable. Reducing the C{sub 3}A content results in a macro-cracking decrease but it does not prevent expansion, which suggests the contribution of other expansive products, such as gypsum, in damage due to ESA. The observation of the cracks network in the microstructure helps to understand the micro-mechanisms of the degradation process.

  15. Periodiek der E.T.S.V. Scintilla Jaargang30|Nummer3|Mei2012

    E-Print Network [OSTI]

    -P-Project Stage Duitsland Minor TN CERN LaseLasergamen LED-bord Bitcoin Hoofdartikel Liquavista Reportage #12 anonieme betaalmethode die de hele wereldeconomie op zijn kop zet: Bitcoin. Ook het langverwachte tweede Pres Nieuws uit het vakgebied Onderwijs op de tocht Mid-P-Project `12 Bitcoin CERN: Groot speelgoed

  16. VIDEO SEMANTIC CONCEPT DETECTION VIA ASSOCIATIVE CLASSIFICATION Lin Lin, Mei-Ling Shyu, Guy Ravitz

    E-Print Network [OSTI]

    Chen, Shu-Ching

    a framework that discovered three semantic con- cepts from news TV broadcast using traditional associative one is to use other evaluation criteria such as lift, cov- erage, leverage, and conviction [1

  17. Monodisperse Lanthanide Oxysulfide Nanocrystals Fei Zhao, Mei Yuan, Wen Zhang, and Song Gao*

    E-Print Network [OSTI]

    Gao, Song

    , oxygen storage, and medical imaging radiation detectors.2 More recently, many efforts were stimulated size- and shape-dependent properties and their self-assembly potential for device and biomedical, and self-arrangement of the Eu2O2S nanostructures were characterized by transmission electron microscopy

  18. The passivation of pyrrhotite by surface coating Mei-Fang Cai a

    E-Print Network [OSTI]

    Belzile, Nelson

    or reduction of sulphide mineralÕs oxidation is the crucial stage in the improvement of metal extraction) 1. Introduction The acid mine drainage (AMD), due to the oxidation of sulphide minerals; Mycroft et al., 1995). Amongst the sulphide minerals, pyrite and pyrrhotite are the most abundant

  19. Protective Wrapper Development: A Case Study Tom Anderson, Mei Feng, Steve Riddle, Alexander Romanovsky

    E-Print Network [OSTI]

    Newcastle upon Tyne, University of

    appropriate recovery actions. This paper presents results of a case study in protective wrapper development, using a Simulink model of a steam boiler system together with an OTS PID (Proportional, Integral tolerance techniques proceed by employing redundant software in some form; for example, recovery blocks, N

  20. 1.63 Advanced Environmental Fluid Mechanics Instructor: C. C. Mei, 2001

    E-Print Network [OSTI]

    Entekhabi, Dara

    617 253 2994 March 10, 2004 3-7-oscill-BL.tex 3.8 Oscillatory Boundary Layers 3.8.1 Stokes problem Near the solid bottom under a wave there is a boundary layer. Let the outside flow have the tangential that (3.8.7) is satisfied. The boundary layer thickness is = 2 (3.8.11) 3.8.2 Induced Streaming

  1. 1.63 J/2.21J Fluid Dynamics Instructor: C. C. Mei,

    E-Print Network [OSTI]

    Entekhabi, Dara

    February 25, 2007 3-9-oscill-BL.tex 3.9 Oscillatory Boundary Layers 3.9.1 Stokes problem Near the solid bottom under a wave there is a boundary layer. Let the outside flow have the tangential velocity u = U.9.4) Substituting (3.9.4) into the boundary layer equations and separate terms of different orders, we get

  2. SURVEILLANCEROOSTER TENTAMENS MEI/JUNI /JULI 2014 INVIGILATION SCHEDULE EXAMS MAY/JUNE /JULY 2014

    E-Print Network [OSTI]

    Emmerich, Michael

    . Cannella Dr. M.M. Bonsangue Databases 3-6-2014 10.00-13.00 B2 +B3 B. Karasneh + R. Carvalho Dr. M. Emmerich.00-13.00 B2 R. Cachucho Dr. M. Emmerich Logica ( Retake) 8-7-2014 10.00-13.00 B2 Cannella Dr. M.M. Bonsangue.00-13.00 Den Haag Dr. M. Emmerich/Abdel Dr. M. Emmerich Computersystemen en telematica 6-6-2014 14.00-17.00 Den

  3. Vertical Concentric Tube Ground Couoled Heat Exchangers V. C. Mei and S. K. Fischer*

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    to extract heat from or reject heat to the environment. The majority of heat pumps use ambient air of the air. Ground water is a better heat source/sink for heat pump application (due to its superior thermal exchangers for use in heat-pump applications is described. The experimental apparatus consists

  4. Automatic Chinese Food Identification and Quantity Estimation Mei-Yun Chen

    E-Print Network [OSTI]

    Ouhyoung, Ming

    is proposed for certain food, while transparent food ingredients such as pure water and cooked rice, meat/beans, milk, and fruit. In this paper, we target to identify food categories and to estimate

  5. Caty Meis talks about SULI and Goldwater Scholarship | 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMForms About Batteriesmetal-organic frameworks |A photo ofMay

  6. Registration-SSRL School 2007 on Hard X-ray Scattering: Techniques in MEIS

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection Technical s o Freiberg and Sondershausen (September 10May 15-17 SLAC

  7. A Methodology for Exposing Process Risk in Emergent System VICTOR R. BASILI, University of Maryland at College Park and the Fraunhofer

    E-Print Network [OSTI]

    Basili, Victor R.

    A Methodology for Exposing Process Risk in Emergent System Properties VICTOR R. BASILI, University System Properties. ACM Trans. on Soft. Eng. Method. X, X, XXXX. DOI = 10.1145/0000000.0000000 http. The purpose of this paper is to define a risk measurement methodology for emergent system properties that does

  8. Ozone uptake by citrus trees exposed to a range of ozone concentrations Silvano Fares a,b,*, Jeong-Hoo Park a

    E-Print Network [OSTI]

    Goldstein, Allen

    Ozone uptake by citrus trees exposed to a range of ozone concentrations Silvano Fares a,b,*, Jeong Received in revised form 26 May 2010 Accepted 2 June 2010 Keywords: Ozone fluxes Citrus Tropospheric ozone climates. In the summer, orchards in California experience high levels of tropospheric ozone, formed

  9. Hazard Communication (Worker Right to Know) As a UW employee, you have the right to know about hazards to which you may be exposed as part

    E-Print Network [OSTI]

    Wilcock, William

    Hazard Communication (Worker Right to Know) As a UW employee, you have the right to know about hazards to which you may be exposed as part of your work assignment. The University's Hazard Communication the hazard communication training you need? A combination of hazard communication training resources

  10. availability in two different treatment implementations: (1) from seedlings exposed to 360, 550, and 700 mu mol mol(-1) CO2 in a

    E-Print Network [OSTI]

    , and 700 mu mol mol(-1) CO2 in a glasshouse; and (2) from intact adults exposed to 360 and 550 mu mol mol(-1) CO2 at the Nevada Desert FACE (Free Air CO2 Enrichment) Facility. FACE and glasshouse wed-watered Larrea significantly down- regulated photosynthesis at elevated CO2, reducing maximum photosynthetic rate

  11. Corrosion of 304 Stainless Steel Exposed To Nitric Acid -Chloride Environments D.G. Kolman, D.K. Ford, D.P. Butt, and T.O. Nelson

    E-Print Network [OSTI]

    Corrosion of 304 Stainless Steel Exposed To Nitric Acid - Chloride Environments D.G. Kolman, D.K. Ford, D.P. Butt, and T.O. Nelson Materials Corrosion and Environmental Effects Laboratory Los AlamosCl, and temperature on the general corrosion behavior of 304 stainless steel (SS), electrochemical studies were

  12. Carbon-Nitrogen Place Exchange on NO Exposed -Mo2C Mohamed Siaj, Carl Maltais, El Mamoune Zahidi, Hicham Oudghiri-Hassani,

    E-Print Network [OSTI]

    Carbon-Nitrogen Place Exchange on NO Exposed -Mo2C Mohamed Siaj, Carl Maltais, El Mamoune Zahidi used to investigate the interplay between atomic nitrogen, carbon, and oxygen in the 400-1250 K region was used to show that atomic nitrogen displaces interstitial carbon onto the carbide surface. Thermal

  13. Notice of construction work in tank farm waste transfer pit 244-TX double contained receiver-tank

    SciTech Connect (OSTI)

    HILL, J.S.

    1999-07-14T23:59:59.000Z

    The following description and any attachments and references are provided to the Washington State Department of Health (WDOH), Division of Radiation Protection, Air Emissions & Defense Waste Section as a notice of construction (NOC) in accordance with Washington Administrative Code (WAC) 246-247, Radiation Protection - Air Emissions. WAC 246-247-060, ''Applications, registration, and licensing'', states ''This section describes the information requirements for approval to construct, modify, and operate an emission unit. Any NOC requires the submittal of information listed in Appendix A,'' Appendix A (WAC 246-247-1 10) lists the requirements that must be addressed. Additionally, the following description, attachments, and references are provided to the U.S. Environmental Protection Agency (EPA) as an NOC, in accordance with Title 40 Code of Federal Regulations (CFR), Part 61, ''National Emission Standards for Hazardous Air Pollutants.'' The information required for submittal to the EPA is specified in 40 CFR 61.07. The potential emissions from this activity are estimated to provide less than 0.1 milliredyear total effective dose equivalent to the hypothetical offsite maximally exposed individual, and commencement is needed within a short time. Therefore, this application also is intended to provide notification of the anticipated date of initial startup in accordance with the requirement listed in 40 CFR 61.09(a)(1), and it is requested that approval of this application also will constitute EPA acceptance of this initial startup notification. Written notification of the actual date of initial startup, in accordance with the requirement listed in 40 CFR 61.09(a)(2), will be provided later. The activities described in this NOC are estimated to provide a potential offsite (unabated) total effective dose equivalent (TEDE) to the hypothetical maximally exposed individual (MEI) of 2.36 E-02 millirem per year.

  14. Air pathway effects of nuclear materials production at the Hanford Site, 1983 to 1992

    SciTech Connect (OSTI)

    Patton, G.W.; Cooper, A.T.

    1993-10-01T23:59:59.000Z

    This report describes the air pathway effects of Hanford Site operations from 1983 to 1992 on the local environment by summarizing the air concentrations of selected radionuclides at both onsite and offsite locations, comparing trends in environment concentrations to changing facility emissions, and briefly describing trends in the radiological dose to the hypothetical maximally exposed member of the public. The years 1983 to 1992 represent the last Hanford Site plutonium production campaign, and this report deals mainly with the air pathway effects from the 200 Areas, in which the major contributors to radiological emissions were located. An additional purpose for report was to review the environmental data for a long period of time to provide insight not available in an annual report format. The sampling and analytical systems used by the Surface Environmental Surveillance Project (SESP) to collect air samples during the period of this report were sufficiently sensitive to observe locally elevated concentrations of selected radionuclides near onsite source of emission as well as observing elevated levels, compared to distant locations, of some radionuclides at the down wind perimeter. The US DOE Derived Concentration Guides (DCGs) for airborne radionuclides were not exceeded for any air sample collected during 1983 to 1992, with annual average concentrations of all radionuclides at the downwind perimeter being considerably below the DCG values. Air emissions at the Hanford Site during the period of this report were dominated by releases from the PUREX Plant, with {sup 85}Kr being the major release on a curie basis and {sup 129}I being the major release on a radiological dose basis. The estimated potential radiological dose from Hanford Site point source emissions to the hypothetical maximally exposed individual (MEI) ranged from 0. 02 to 0.22 mrem/yr (effective dose equivalent), which is well below the DOE radiation limit to the public of 100 mrem/yr.

  15. Compatibility Study for Plastic, Elastomeric, and Metallic Fueling Infrastructure Materials Exposed to Aggressive Formulations of Ethanol-blended Gasoline

    SciTech Connect (OSTI)

    Kass, Michael D [ORNL; Pawel, Steven J [ORNL; Theiss, Timothy J [ORNL; Janke, Christopher James [ORNL

    2012-07-01T23:59:59.000Z

    In 2008 Oak Ridge National Laboratory began a series of experiments to evaluate the compatibility of fueling infrastructure materials with intermediate levels of ethanol-blended gasoline. Initially, the focus was elastomers, metals, and sealants, and the test fuels were Fuel C, CE10a, CE17a and CE25a. The results of these studies were published in 2010. Follow-on studies were performed with an emphasis on plastic (thermoplastic and thermoset) materials used in underground storage and dispenser systems. These materials were exposed to test fuels of Fuel C and CE25a. Upon completion of this effort, it was felt that additional compatibility data with higher ethanol blends was needed and another round of experimentation was performed on elastomers, metals, and plastics with CE50a and CE85a test fuels. Compatibility of polymers typically relates to the solubility of the solid polymer with a solvent. It can also mean susceptibility to chemical attack, but the polymers and test fuels evaluated in this study are not considered to be chemically reactive with each other. Solubility in polymers is typically assessed by measuring the volume swell of the polymer exposed to the solvent of interest. Elastomers are a class of polymers that are predominantly used as seals, and most o-ring and seal manufacturers provide compatibility tables of their products with various solvents including ethanol, toluene, and isooctane, which are components of aggressive oxygenated gasoline as described by the Society of Automotive Engineers (SAE) J1681. These tables include a ranking based on the level of volume swell in the elastomer associated with exposure to a particular solvent. Swell is usually accompanied by a decrease in hardness (softening) that also affects performance. For seal applications, shrinkage of the elastomer upon drying is also a critical parameter since a contraction of volume can conceivably enable leakage to occur. Shrinkage is also indicative of the removal of one or more components of the elastomers (by the solvent). This extraction of additives can negatively change the properties of the elastomer, leading to reduced performance and durability. For a seal application, some level of volume swell is acceptable, since the expansion will serve to maintain a seal. However, the acceptable level of swell is dependent on the particular application of the elastomer product. It is known that excessive swell can lead to unacceptable extrusion of the elastomer beyond the sealed interface, where it becomes susceptible to damage. Also, since high swell is indicative of high solubility, there is a heightened potential for fluid to seep through the seal and into the environment. Plastics, on the other hand, are used primarily in structural applications, such as solid components, including piping and fluid containment. Volume change, especially in a rigid system, will create internal stresses that may negatively affect performance. In order to better understand and predict the compatibility for a given polymer type and fuel composition, an analysis based on Hansen solubility theory was performed for each plastic and elastomer material. From this study, the solubility distance was calculated for each polymer material and test fuel combination. Using the calculated solubility distance, the ethanol concentration associated with peak swell and overall extent of swell can be predicted for each polymer. The bulk of the material discussion centers on the plastic materials, and their compatibility with Fuel C, CE25a, CE50a, and CE85a. The next section of this paper focuses on the elastomer compatibility with the higher ethanol concentrations with comparison to results obtained previously for the lower ethanol levels. The elastomers were identical to those used in the earlier study. Hansen solubility theory is also applied to the elastomers to provide added interpretation of the results. The final section summarizes the performance of the metal coupons.

  16. Differential transcriptional regulation of IL-8 expression by human airway epithelial cells exposed to diesel exhaust particles

    SciTech Connect (OSTI)

    Tal, Tamara L. [Curriculum in Toxicology, University of North Carolina, Chapel Hill (United States); Simmons, Steven O. [Integrated Systems Toxicology, National Health and Environmental Effects Research Laboratory, U.S. EPA (United States); Silbajoris, Robert; Dailey, Lisa [Environmental and Public Health, National Health and Environmental Effects Research Laboratory, U.S. EPA (United States); Cho, Seung-Hyun [Air Pollution Prevention Control Division, National Risk Management Research Laboratory, U.S. EPA (United States); Research Participation Program, Oak Ridge Institute for Science and Education, Oak Ridge (United States); Ramabhadran, Ram [Curriculum in Toxicology, University of North Carolina, Chapel Hill (United States); Integrated Systems Toxicology, National Health and Environmental Effects Research Laboratory, U.S. EPA (United States); Linak, William [Air Pollution Prevention Control Division, National Risk Management Research Laboratory, U.S. EPA (United States); Reed, William; Bromberg, Philip A. [Center for Environmental Medicine, Asthma, and Lung Biology, University of North Carolina, Chapel Hill (United States); Samet, James M., E-mail: samet.james@epa.go [Curriculum in Toxicology, University of North Carolina, Chapel Hill (United States); Environmental and Public Health, National Health and Environmental Effects Research Laboratory, U.S. EPA (United States)

    2010-02-15T23:59:59.000Z

    Exposure to diesel exhaust particles (DEP) induces inflammatory signaling characterized by MAP kinase-mediated activation of NFkB and AP-1 in vitro and in bronchial biopsies obtained from human subjects exposed to DEP. NFkB and AP-1 activation results in the upregulation of genes involved in promoting inflammation in airway epithelial cells, a principal target of inhaled DEP. IL-8 is a proinflammatory chemokine expressed by the airway epithelium in response to environmental pollutants. The mechanism by which DEP exposure induces IL-8 expression is not well understood. In the current study, we sought to determine whether DEP with varying organic content induces IL-8 expression in lung epithelial cells, as well as, to develop a method to rapidly evaluate the upstream mechanism(s) by which DEP induces IL-8 expression. Exposure to DEP with varying organic content differentially induced IL-8 expression and IL-8 promoter activity human airway epithelial cells. Mutational analysis of the IL-8 promoter was also performed using recombinant human cell lines expressing reporters linked to the mutated promoters. Treatment with a low organic-containing DEP stimulated IL-8 expression by a mechanism that is predominantly NFkB-dependent. In contrast, exposure to high organic-containing DEP induced IL-8 expression independently of NFkB through a mechanism that requires AP-1 activity. Our study reveals that exposure to DEP of varying organic content induces proinflammatory gene expression through multiple specific mechanisms in human airway epithelial cells. The approaches used in the present study demonstrate the utility of a promoter-reporter assay ensemble for identifying transcriptional pathways activated by pollutant exposure.

  17. Carbonation of Clay Minerals Exposed to scCO2/Water at 200 degrees and 250 degrees C

    SciTech Connect (OSTI)

    Sugama, T.; Ecker, L.; Gill, S.; Butcher, T. (BNL); Bour, D. (AltaRock Energy, Inc.)

    2010-11-01T23:59:59.000Z

    To clarify the mechanisms of carbonation of clay minerals, such as bentonite, kaolinite, and soft clay, we exposed them to supercritical carbon dioxide (scCO2)/water at temperatures of 200 and 250 C and pressures of 1500 and 2000 psi for 72- and 107-hours. Bentonite, comprising three crystalline phases, montmorillonite (MMT), anorthoclase-type albite, and quartz was susceptible to reactions with ionic carbonic acid yielded by the interactions between scCO2 and water, particularly MMT and anorthoclase-type albite phases. For MMT, the cation-exchangeable ions, such as Na+ and Ca2+, present in its basal interplanar space, were replaced by proton, H+, from ionic carbonic acid; thereafter, the cations leaching from MMT directly reacted with CO32- as a counter ion of H+ to form carbonate compounds. Such in-situ carbonation process in basal space caused the shrinkage and breakage of the spacing structure within MMT. In contrast, the wet carbonation of anorthoclase-type albite, categorized as rock minerals, entailed the formation of three amorphous by-products, such as carbonates, kaolinite-like compounds, and silicon dioxide. Together, these two different carbonations caused the disintegration and corruption of bentonite. Kaolinite clay containing the amorphous carbonates and silicon dioxide was inert to wet carbonation. We noted only a gain in weight due to its water uptake, suggesting that kaolinite-like by-products generated by the wet carbonation of rock minerals might remain unchanged even during extended exposure. Soft clay consisting of two crystalline phases, dolomite and silicon dioxide, also was unaltered by wet carbonation, despite the uptake of water.

  18. A Reply to "Comment on 'Big Bang Nucleosynthesis and Active-Sterile Neutrino Mixing: Evidence for Maximal $?_?\\leftrightarrow?_?$ Mixing in Super Kamiokande?'"

    E-Print Network [OSTI]

    Xiangdong Shi; George M. Fuller

    1998-12-17T23:59:59.000Z

    In the paper "Big Bang Nucleosynthesis and Active-Sterile Neutrino Mixing: Evidence for Maximal Muon-Neutrino/Sterile-Neutrino Mixing in Super Kamiokande" (astro-ph/9810075), we suggested that to evade the Big Bang Nucleosynthesis exclusion of the muon neutrino to sterile neutrino oscillation explanation of the Super Kamiokande data, the tau neutrino must have a mass over about 15 eV and it must mix with a lighter sterile neutrino. A stable tau neutrino with this mass is inconsistent with cosmological structure formation. In a comment on our paper (astro-ph/9811067), Foot and Volkas argued that our result is incorrect and that the required tau neutrino mass should be much lower. Here we back up our original result with a more detailed calculation. We show that the argument of Foot and Volkas is invalid, most likely due to an insufficient energy resolution in the low energy part of the neutrino spectrum.

  19. Long-Term Outcomes After Maximal Surgical Resection and Intraoperative Electron Radiotherapy for Locoregionally Recurrent or Locoregionally Advanced Primary Renal Cell Carcinoma

    SciTech Connect (OSTI)

    Hallemeier, Christopher L. [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States); Choo, Richard, E-mail: choo.c@mayo.edu [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States); Davis, Brian J.; Pisansky, Thomas M. [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States); Gunderson, Leonard L. [Department of Radiation Oncology, Mayo Clinic, Scottsdale, AZ (United States); Leibovich, Bradley C. [Department of Urology, Mayo Clinic, Rochester, MN (United States); Haddock, Michael G. [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States)

    2012-04-01T23:59:59.000Z

    Purpose: To report outcomes of a multimodality therapy combining maximal surgical resection and intraoperative electron radiotherapy (IOERT) for patients with locoregionally (LR) recurrent renal cell carcinoma (RCC) after radical nephrectomy or LR advanced primary RCC. Methods and Materials: From 1989 through 2005, a total of 22 patients with LR recurrent (n = 19) or LR advanced primary (n = 3) RCC were treated with this multimodality approach. The median patient age was 63 years (range 46-78). Twenty-one patients (95%) received perioperative external beam radiotherapy (EBRT) with a median dose of 4,500 cGy (range, 4,140-5,500). Surgical resection was R0 (negative margins) in 5 patients (23%) and R1 (residual microscopic disease) in 17 patients (77%). The median IOERT dose delivered was 1,250 cGy (range, 1,000-2,000). Overall survival (OS) and disease-free survival (DFS) and relapse patterns were estimated using the Kaplan-Meier method. Results: The median follow-up for surviving patients was 9.9 years (range, 3.6-20 years). The OS and DFS at 1, 5, and 10 years were 91%, 40%, and 35% and 64%, 31%, and 31%, respectively. Central recurrence (within the IOERT field), LR relapse (tumor bed or regional lymph nodes), and distant metastases at 5 years were 9%, 27%, and 64%, respectively. Mortality within 30 days of surgery and IOERT was 0%. Five patients (23%) experienced acute or late National Cancer Institute Common Toxicity Criteria (NCI-CTCAE) Version 4 Grade 3 to 5 toxicities. Conclusions: In patients with LR recurrent or LR advanced primary RCC, a multimodality approach of perioperative EBRT, maximal surgical resection, and IOERT yielded encouraging results. This regimen warrants further investigation.

  20. Sensor placement algorithm development to maximize the efficiency of acid gas removal unit for integrated gasification combined cycle (IGCC) power plant with CO{sub 2} capture

    SciTech Connect (OSTI)

    Paul, P.; Bhattacharyya, D.; Turton, R.; Zitney, S.

    2012-01-01T23:59:59.000Z

    Future integrated gasification combined cycle (IGCC) power plants with CO{sub 2} capture will face stricter operational and environmental constraints. Accurate values of relevant states/outputs/disturbances are needed to satisfy these constraints and to maximize the operational efficiency. Unfortunately, a number of these process variables cannot be measured while a number of them can be measured, but have low precision, reliability, or signal-to-noise ratio. In this work, a sensor placement (SP) algorithm is developed for optimal selection of sensor location, number, and type that can maximize the plant efficiency and result in a desired precision of the relevant measured/unmeasured states. In this work, an SP algorithm is developed for an selective, dual-stage Selexol-based acid gas removal (AGR) unit for an IGCC plant with pre-combustion CO{sub 2} capture. A comprehensive nonlinear dynamic model of the AGR unit is developed in Aspen Plus Dynamics® (APD) and used to generate a linear state-space model that is used in the SP algorithm. The SP algorithm is developed with the assumption that an optimal Kalman filter will be implemented in the plant for state and disturbance estimation. The algorithm is developed assuming steady-state Kalman filtering and steady-state operation of the plant. The control system is considered to operate based on the estimated states and thereby, captures the effects of the SP algorithm on the overall plant efficiency. The optimization problem is solved by Genetic Algorithm (GA) considering both linear and nonlinear equality and inequality constraints. Due to the very large number of candidate sets available for sensor placement and because of the long time that it takes to solve the constrained optimization problem that includes more than 1000 states, solution of this problem is computationally expensive. For reducing the computation time, parallel computing is performed using the Distributed Computing Server (DCS®) and the Parallel Computing® toolbox from Mathworks®. In this presentation, we will share our experience in setting up parallel computing using GA in the MATLAB® environment and present the overall approach for achieving higher computational efficiency in this framework.

  1. Sensor placement algorithm development to maximize the efficiency of acid gas removal unit for integrated gasifiction combined sycle (IGCC) power plant with CO2 capture

    SciTech Connect (OSTI)

    Paul, P.; Bhattacharyya, D.; Turton, R.; Zitney, S.

    2012-01-01T23:59:59.000Z

    Future integrated gasification combined cycle (IGCC) power plants with CO{sub 2} capture will face stricter operational and environmental constraints. Accurate values of relevant states/outputs/disturbances are needed to satisfy these constraints and to maximize the operational efficiency. Unfortunately, a number of these process variables cannot be measured while a number of them can be measured, but have low precision, reliability, or signal-to-noise ratio. In this work, a sensor placement (SP) algorithm is developed for optimal selection of sensor location, number, and type that can maximize the plant efficiency and result in a desired precision of the relevant measured/unmeasured states. In this work, an SP algorithm is developed for an selective, dual-stage Selexol-based acid gas removal (AGR) unit for an IGCC plant with pre-combustion CO{sub 2} capture. A comprehensive nonlinear dynamic model of the AGR unit is developed in Aspen Plus Dynamics® (APD) and used to generate a linear state-space model that is used in the SP algorithm. The SP algorithm is developed with the assumption that an optimal Kalman filter will be implemented in the plant for state and disturbance estimation. The algorithm is developed assuming steady-state Kalman filtering and steady-state operation of the plant. The control system is considered to operate based on the estimated states and thereby, captures the effects of the SP algorithm on the overall plant efficiency. The optimization problem is solved by Genetic Algorithm (GA) considering both linear and nonlinear equality and inequality constraints. Due to the very large number of candidate sets available for sensor placement and because of the long time that it takes to solve the constrained optimization problem that includes more than 1000 states, solution of this problem is computationally expensive. For reducing the computation time, parallel computing is performed using the Distributed Computing Server (DCS®) and the Parallel Computing® toolbox from Mathworks®. In this presentation, we will share our experience in setting up parallel computing using GA in the MATLAB® environment and present the overall approach for achieving higher computational efficiency in this framework.

  2. Metabolic Engineering of Light and Dark Biochemical Pathways in Wild-Type and Mutant Strains of Synechocystis PCC 6803 for Maximal, 24-Hour Production of Hydrogen Gas

    SciTech Connect (OSTI)

    Ely, Roger L.; Chaplen, Frank W.R.

    2014-03-11T23:59:59.000Z

    This project used the cyanobacterial species Synechocystis PCC 6803 to pursue two lines of inquiry, with each line addressing one of the two main factors affecting hydrogen (H2) production in Synechocystis PCC 6803: NADPH availability and O2 sensitivity. H2 production in Synechocystis PCC 6803 requires a very high NADPH:NADP+ ratio, that is, the NADP pool must be highly reduced, which can be problematic because several metabolic pathways potentially can act to raise or lower NADPH levels. Also, though the [NiFe]-hydrogenase in PCC 6803 is constitutively expressed, it is reversibly inactivated at very low O2 concentrations. Largely because of this O2 sensitivity and the requirement for high NADPH levels, a major portion of overall H2 production occurs under anoxic conditions in the dark, supported by breakdown of glycogen or other organic substrates accumulated during photosynthesis. Also, other factors, such as N or S limitation, pH changes, presence of other substances, or deletion of particular respiratory components, can affect light or dark H2 production. Therefore, in the first line of inquiry, under a number of culture conditions with wild type (WT) Synechocystis PCC 6803 cells and a mutant with impaired type I NADPH-dehydrogenase (NDH-1) function, we used H2 production profiling and metabolic flux analysis, with and without specific inhibitors, to examine systematically the pathways involved in light and dark H2 production. Results from this work provided rational bases for metabolic engineering to maximize photobiological H2 production on a 24-hour basis. In the second line of inquiry, we used site-directed mutagenesis to create mutants with hydrogenase enzymes exhibiting greater O2 tolerance. The research addressed the following four tasks: 1. Evaluate the effects of various culture conditions (N, S, or P limitation; light/dark; pH; exogenous organic carbon) on H2 production profiles of WT cells and an NDH-1 mutant; 2. Conduct metabolic flux analyses for enhanced H2 production profiles using selected culture conditions and inhibitors of specific pathways in WT cells and an NDH-1 mutant; 3. Create Synechocystis PCC 6803 mutant strains with modified hydrogenases exhibiting increased O2 tolerance and greater H2 production; and 4. Integrate enhanced hydrogenase mutants and culture and metabolic factor studies to maximize 24-hour H2 production.

  3. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research.

    E-Print Network [OSTI]

    Agnarsson, Ingi

    in the common goal of maximizing access to critical research. Darwin's bark spider: giant prey in giant orb webs societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site holder. #12;Darwin's bark spider: giant prey in giant orb webs (Caerostris darwini, Araneae: Araneidae

  4. Quantum System Identification Maxim Raginsky

    E-Print Network [OSTI]

    Raginsky, Maxim

    density operators. We a1.w present a quantita- tive analysis (if the wow-case perfonnnncc of these s

  5. Opinion Maximization in Social Networks

    E-Print Network [OSTI]

    Terzi, Evimaria

    global warming Wednesday, July 24, 13 #12;prevent global warming Wednesday, July 24, 13 #12;prevent global warming reduce military spending Wednesday, July 24, 13 #12;prevent global warming reduce military spending Wednesday, July 24, 13 #12;prevent global warming reduce military spending fight poverty Wednesday

  6. The holography of F -maximization

    E-Print Network [OSTI]

    Freedman, Daniel Z.

    We find new supersymmetric backgrounds of N = 8 gauged supergravity in four Euclidean dimensions that are dual to deformations of ABJM theory on S 3. The deformations encode the most general choice of U(1) R symmetry used ...

  7. Is the beta phase maximal?

    E-Print Network [OSTI]

    Ferrandis, Javier

    2008-01-01T23:59:59.000Z

    55, 2935 (1985). [20] M. Battaglia and L. Gibbons, [arXiv:B 592, 1 (2004). [13] M. Battaglia et al. , [arXiv:hep-

  8. Grain boundary depletion and migration during selective oxidation of Cr in a Ni-5Cr binary alloy exposed to high-temperature hydrogenated water

    SciTech Connect (OSTI)

    Schreiber, Daniel K.; Olszta, Matthew J.; Bruemmer, Stephen M.

    2014-10-15T23:59:59.000Z

    High-resolution microscopy of a high-purity Ni-5Cr alloy exposed to 360°C hydrogenated water reveals intergranular selective oxidation of Cr accompanied by local Cr depletion and diffusion-induced grain boundary migration (DIGM). The corrosion-product oxide consists of a porous, interconnected network of Cr2O3 platelets with no further O ingress into the metal ahead. Extensive grain boundary depletion of Cr (to <0.05at.%) is observed typically 20–100 nm wide as a result of DIGM and reaching depths of many micrometers beyond the oxidation front.

  9. Transcriptome analysis of the human T lymphocyte cell line Jurkat and human peripheral blood mononuclear cells exposed to deoxynivalenol (DON): New mechanistic insights

    SciTech Connect (OSTI)

    Katika, Madhumohan R. [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands) [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands); Department of Health Risk Analysis and Toxicology, Maastricht University (Netherlands); Netherlands Toxicogenomics Centre (Netherlands)] [Netherlands; Hendriksen, Peter J.M. [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands) [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands); Netherlands Toxicogenomics Centre (Netherlands)] [Netherlands; Shao, Jia [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands) [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands); Department of Health Risk Analysis and Toxicology, Maastricht University (Netherlands); Netherlands Toxicogenomics Centre (Netherlands)] [Netherlands; Loveren, Henk van [Department of Health Risk Analysis and Toxicology, Maastricht University (Netherlands) [Department of Health Risk Analysis and Toxicology, Maastricht University (Netherlands); National Institute for Public Health and the Environment (RIVM), Bilthoven (Netherlands); Netherlands Toxicogenomics Centre (Netherlands)] [Netherlands; Peijnenburg, Ad, E-mail: ad.peijnenburg@wur.nl [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands) [RIKILT-Institute of Food Safety, Wageningen University and Research Centre, Wageningen (Netherlands); Netherlands Toxicogenomics Centre (Netherlands)] [Netherlands

    2012-10-01T23:59:59.000Z

    Deoxynivalenol (DON) or vomitoxin is a commonly encountered type-B trichothecene mycotoxin, produced by Fusarium species predominantly found in cereals and grains. DON is known to exert toxic effects on the gastrointestinal, reproductive and neuroendocrine systems, and particularly on the immune system. Depending on dose and exposure time, it can either stimulate or suppress immune function. The main objective of this study was to obtain a deeper insight into DON-induced effects on lymphoid cells. For this, we exposed the human T-lymphocyte cell line Jurkat and human peripheral blood mononuclear cells (PBMCs) to various concentrations of DON for various times and examined gene expression changes by DNA microarray analysis. Jurkat cells were exposed to 0.25 and 0.5 ?M DON for 3, 6 and 24 h. Biological interpretation of the microarray data indicated that DON affects various processes in these cells: It upregulates genes involved in ribosome structure and function, RNA/protein synthesis and processing, endoplasmic reticulum (ER) stress, calcium-mediated signaling, mitochondrial function, oxidative stress, the NFAT and NF-?B/TNF-? pathways, T cell activation and apoptosis. The effects of DON on the expression of genes involved in ER stress, NFAT activation and apoptosis were confirmed by qRT-PCR. Other biochemical experiments confirmed that DON activates calcium-dependent proteins such as calcineurin and M-calpain that are known to be involved in T cell activation and apoptosis. Induction of T cell activation was also confirmed by demonstrating that DON activates NFATC1 and induces its translocation from the cytoplasm to the nucleus. For the gene expression profiling of PBMCs, cells were exposed to 2 and 4 ?M DON for 6 and 24 h. Comparison of the Jurkat microarray data with those obtained with PBMCs showed that most of the processes affected by DON in the Jurkat cell line were also affected in the PBMCs. -- Highlights: ? The human T cell line Jurkat and human PBMCs were exposed to DON. ? Whole-genome microarray experiments were performed. ? Microarray data indicates that DON affects ribosome and RNA/protein synthesis. ? DON treatment induces ER stress, calcium mediated signaling, NFAT and NF-?B. ? Exposure to DON induces T cell activation, oxidative stress and apoptosis.

  10. The effect of thymosin on the survival of CBA/J mice exposed to lethal and acute doses of ionizing radiation

    E-Print Network [OSTI]

    Huchton, Roger Lynn

    1978-01-01T23:59:59.000Z

    and after 875 R whole-body X-radiatron to two groups of 15 mice. Control groups recexved equivalent amounts of sterile saline in corresponding treatment regimens. Though a slight decrease zn the mean time-to-death for the thymosin-in7ected au. ce... was noted, the difference in the mean time-to-deaths for the two groups was not significantly different. For the second investigation, two groups of 18 mice were exposed to 700 R whole-body X-radiation. Daily subcutaneous injections of thymosrn were...

  11. SU(3) Gauge Family Symmetry and Prediction for the Lepton-Flavor Mixing and Neutrino Masses with Maximal Spontaneous CP Violation

    E-Print Network [OSTI]

    Yue-Liang Wu

    2012-07-12T23:59:59.000Z

    A model for the lepton-flavor mixing and CP violation is proposed based on the SU$_F$(3) gauge family symmetry and the Majorana feature of neutrinos. A consistent prediction for the lepton-flavor mixing and masses is shown to be resulted from the appropriate vacuum structure of SU$_F$(3) gauge symmetry breaking. By choosing the SU$_F$(3) gauge fixing condition to possess a residual $Z_2$ symmetry and requiring the vacuum structure of spontaneous symmetry breaking to have approximate global U(1) family symmetries, we obtain naturally the tri-bimaximal mixing matrix and largely degenerate neutrino masses in the neutrino sector and the small mixing matrix in the charged-lepton sector. With a simple ansatz that all the smallness due to the approximate global U(1) family symmetries is characterized by a single Wolfenstein parameter $\\lambda \\simeq 0.22$, and the charged-lepton mixing matrix has a similar hierarchy structure as the CKM quark mixing matrix, we arrive at a consistent prediction for the MNSP lepton-flavor mixing with a maximal spontaneous CP violation: $\\delta =\\pi/2$, $\\sin^2\\theta_{13} \\simeq 1/2\\lambda^2 \\simeq 0.024$ ($\\sin^22\\theta_{13} \\simeq 0.094$), $\\sin^2\\theta_{12} \\simeq 1/3{3}(1 - 2\\lambda^3) \\simeq 0.326$ and $\\sin^2\\theta_{23} \\simeq 1/2(1 - \\lambda^2) \\simeq 0.48$, which agree well with the current experimental data. The CP-violating Jarlskog-invariant is obtained to be $J_{CP} \\simeq 1/6\\lambda(1-\\lambda^2/2-\\lambda^3)\\sin\\delta \\simeq 0.035$, which is detectable in next generation neutrino experiment. The largely degenerate neutrino masses with the normal hierarchy and inverse hierarchy are discussed and found be at the order $m_{\

  12. Experimental simulation of crevice corrosion of a functionally graded composite system of F91 and Fe-12Cr-2Si exposed to high-temperature lead-bismuth eutectic coolant

    E-Print Network [OSTI]

    Ferry, Sara Elizabeth

    2011-01-01T23:59:59.000Z

    In a system in which metal corrosion is of concern to its long-term structural integrity, crevice corrosion can be a significant cause of damage. Small crevices in a metal exposed to a working fluid (such as a reactor's ...

  13. Subsurface characterization of an oxidation-induced phase transformation and twinning in nickel-based superalloy exposed to oxy-combustion environments

    SciTech Connect (OSTI)

    Zhu, Jingxi; Holcomb, Gordon R.; Jablonski, Paul D.; Wise, Adam; Li, Jia; Laughlin, David E.; Sridhar, Seetharaman

    2012-07-30T23:59:59.000Z

    In the integration of oxy-fuel combustion to turbine power generation system, turbine alloys are exposed to high temperature and an atmosphere comprised of steam, CO{sub 2} and O{sub 2}. While surface and internal oxidation of the alloy takes place, the microstructure in the subsurface region also changes due to oxidation. In this study, bare metal coupons of Ni-base superalloys were exposed in oxy-fuel combustion environment for up to 1000 h and the oxidation-related microstructures were examined. Phase transformation occurred in the subsurface region in Ni-based superalloy and led to twinning. The transformation product phases were analyzed through thermodynamic equilibrium calculations and various electron microscopy techniques, including scanning electron microscopy (SEM), orientation imaging microscopy (OIM) and transmission electron microscopy (TEM). The mechanism by which the phase transformation and the formation of the microstructure occurred was also discussed. The possible effects of the product phases on the performance of the alloy in service were discussed.

  14. Color measurements on marble and limestone briquettes exposed to outdoor environment in the Eastern United States. Volume I: Results of exposure 1984-1990

    SciTech Connect (OSTI)

    Reimann, K.J.

    1994-04-01T23:59:59.000Z

    In a long-term program that began in 1984, limestone and marble briquettes have been exposed to both anthropogenic acid deposition and natural weathering at four field sites in the eastern United States. Similar tests began at an Ohio site in 1986. Effects of exposure on the briquettes and other materials at the sites are evaluated periodically by several federal agencies cooperating in the National Acid Precipitation Assessment Program (NAPAP). One of the primary contributions of Argonne National Laboratory to the NAPAP has been the measurement of tristimulus color change on samples exposed to the environment. Results from the first six years indicate a yellowing of the marble and a darkening of limestone on both the skyward and groundward surfaces of fresh and preexposed briquettes. The relationship between discoloration and exposure period appears to be linear. Discoloration rates as a function of a cumulative exposure time are almost constant for marble and slightly decreasing for limestone Dark spots on groundward surfaces were measured with tristimulus color equipment prior to chemical analysis to determine if a correlation exists between darkening (change in reflectance) and SO{sub 4} concentration. Taking exposure time into consideration, and assuming that the airborne concentration of dark particles, which cause darkening, is proportional to airborne SO{sub 2} concentration, one can establish a linear relationship between exposure time, darkening, and SO{sub 2} concentration. The program is continuing so that additional data can be obtained.

  15. Microdistribution and Long-Term Retention of 239Pu (NO3)4 in the Respiratory Tracts of an Acutely Exposed Plutonium Worker and Experimental Beagle Dogs

    SciTech Connect (OSTI)

    Nielsen, Christopher E.; Wilson, Dulaney A.; Brooks, Antone L.; McCord, Stacey; Dagle, Gerald E.; James, Anthony C.; Tolmachev, Sergei Y.; Thrall, Brian D.; Morgan, William F.

    2012-11-01T23:59:59.000Z

    The long-term retention of inhaled soluble forms of plutonium raises concerns as to the potential health effects in persons working in nuclear energy or the nuclear weapons program. The distributions of long-term retained inhaled plutonium-nitrate [239Pu (NO3)4] deposited in the lungs of an accidentally exposed nuclear worker (Human Case 0269) and in the lungs of experimentally exposed beagle dogs with varying initial lung depositions were determined via autoradiographs of selected histological lung, lymph node, trachea, and nasal turbinate tissue sections. These studies showed that both the human and dogs had a non-uniform distribution of plutonium throughout the lung tissue. Fibrotic scar tissue effectively encapsulated a portion of the plutonium and prevented its clearance from the body or translocation to other tissues and diminished dose to organ parenchyma. Alpha radiation activity from deposited plutonium in Human Case 0269 was observed primarily along the sub-pleural regions while no alpha activity was seen in the tracheobronchial lymph nodes of this individual. However, relatively high activity levels in the tracheobronchial lymph nodes of the beagles indicated the lymphatic system was effective in clearing deposited plutonium from the lung tissues. In both the human case and beagle dogs, the appearance of retained plutonium within the respiratory tract was inconsistent with current biokinetic models of clearance for soluble forms of plutonium. Bound plutonium can have a marked effect on the dose to the lungs and subsequent radiation exposure has the potential increase in cancer risk.

  16. Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin)

    SciTech Connect (OSTI)

    Andrew G. Cole; George B. Asquith; Jose I. Guzman; Mark D. Barton; Mohammad A. Malik; Shirley P. Dutton; Sigrid J. Clift

    1998-04-01T23:59:59.000Z

    The objective of this Class III project is to demonstrate that detailed reservoir characterization of clastic reservoirs in basinal sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost-effective way to recover more of the original oil in place by strategic infill-well placement and geologically based enhanced oil recovery. The study focused on the Ford Geraldine unit, which produces from the upper Bell Canyon Formation (Ramsey sandstone). Reservoirs in this and other Delaware Mountain Group fields have low producibility (average recovery <14 percent of the original oil in place) because of a high degree of vertical and lateral heterogeneity caused by depositional processes and post-depositional diagenetic modification. Outcrop analogs were studied to better interpret the depositional processes that formed the reservoirs at the Ford Geraldine unit and to determine the dimensions of reservoir sandstone bodies. Facies relationships and bedding architecture within a single genetic unit exposed in outcrop in Culberson County, Texas, suggest that the sandstones were deposited in a system of channels and levees with attached lobes that initially prograded basinward, aggraded, and then turned around and stepped back toward the shelf. Channel sandstones are 10 to 60 ft thick and 300 to 3,000 ft wide. The flanking levees have a wedge-shaped geometry and are composed of interbedded sandstone and siltstone; thickness varies from 3 to 20 ft and length from several hundred to several thousands of feet. The lobe sandstones are broad lens-shaped bodies; thicknesses range up to 30 ft with aspect ratios (width/thickness) of 100 to 10,000. Lobe sandstones may be interstratified with laminated siltstones.

  17. Radioactive Air Emission Notice of Construction (NOC) for Plutonium Finishing Plant (PFP) Project W-460 Plutonium Stabilization and Handling

    SciTech Connect (OSTI)

    JANSKY, M.T.

    2000-05-01T23:59:59.000Z

    The following description and any attachments and references are provided to the Washington State Department of Health (WDOH), Division of Radiation Protection, Air Emissions & Defense Waste Section as a notice of construction (NOC) in accordance with Washington Administrative Code (WAC) 246-247, Radiation Protection-Air Emissions. The WAC 246-247-060, ''Applications, registration, and licensing'', states ''This section describes the information requirements for approval to construct, modify, and operate an emission unit. Any NOC requires the submittal of information listed in Appendix A.'' Additionally, the following description, attachments, and references are provided to the US Environmental Protection Agency (EPA) as an NOC, in accordance with Title 40 Code of Federal Regulations (CFR), Part 61, ''National Emission Standards for Hazardous Air Pollutants''. The information required for submittal to the EPA is specified in 40 CFR 61.07. The potential emissions from this activity are estimated to provide greater than 0.1 millirem year total effective dose equivalent (TEDE) to the hypothetical offsite maximally exposed individual (MEI) and commencement is needed within a short time. Therefore, this application also is intended to provide notification of the anticipated date of initial startup in accordance with the requirement listed in 40 CFR 61.09(a)(1), and it is requested that approval of this application also constitutes EPA acceptance of this initial startup notification. Written notification of the actual date of initial startup, in accordance with the requirement listed in 40 CFR 61.09(a)(2), will be provided later. This NOC covers the activities associated with the construction and operation activities involving stabilization and/or repackaging of plutonium in the 2736-ZB Building. A new exhaust stack will be built and operated at the 2736-ZB Building to handle the effluents associated with the operation of the stabilization and repackaging process. Figures provided are based on preliminary design. For the activities covered under this NOC, the unabated and abated TEDE to the hypothetical MEI is 1.67 E-03 and 8.34 E-01 millirem per year, respectively.

  18. SITE SPECIFIC REFERENCE PERSON PARAMETERS AND DERIVED CONCENTRATION STANDARDS FOR THE SAVANNAH RIVER SITE

    SciTech Connect (OSTI)

    Jannik, T.

    2013-03-14T23:59:59.000Z

    The purpose of this report is twofold. The first is to develop a set of behavioral parameters for a reference person specific for the Savannah River Site (SRS) such that the parameters can be used to determine dose to members of the public in compliance with Department of Energy (DOE) Order 458.1 “Radiation Protection of the Public and the Environment.” A reference person is a hypothetical, gender and age aggregation of human physical and physiological characteristics arrived at by international consensus for the purpose of standardizing radiation dose calculations. DOE O 458.1 states that compliance with the annual dose limit of 100 mrem (1 mSv) to a member of the public may be demonstrated by calculating the dose to the maximally exposed individual (MEI) or to a representative person. Historically, for dose compliance, SRS has used the MEI concept, which uses adult dose coefficients and adult male usage parameters. Beginning with the 2012 annual site environmental report, SRS will be using the representative person concept for dose compliance. The dose to a representative person will be based on 1) the SRS-specific reference person usage parameters at the 95th percentile of appropriate national or regional data, which are documented in this report, 2) the reference person (gender and age averaged) ingestion and inhalation dose coefficients provided in DOE Derived Concentration Technical Standard (DOE-STD-1196-2011), and 3) the external dose coefficients provided in the DC_PAK3 toolbox. The second purpose of this report is to develop SRS-specific derived concentration standards (DCSs) for all applicable food ingestion pathways, ground shine, and water submersion. The DCS is the concentration of a particular radionuclide in water, in air, or on the ground that results in a member of the public receiving 100 mrem (1 mSv) effective dose following continuous exposure for one year. In DOE-STD-1196-2011, DCSs were developed for the ingestion of water, inhalation of air and submersion in air pathways, only. These DCSs are required by DOE O 458.1 to be used at all DOE sites in the design and conduct of radiological environmental protection programs. In this report, DCSs for the following additional pathways were considered and documented: ingestion of meat, dairy, grains, produce (fruits and vegetables), seafood, submersion in water and ground shine. These additional DCSs were developed using the same methods as in DOE-STD-1196-2011 and will be used at SRS, where appropriate, as screening and reference values.

  19. A Novel and Cost Effective Approach to the Decommissioning and Decontamination of Legacy Glove Boxes - Minimizing TRU Waste and Maximizing LLW Waste - 13634

    SciTech Connect (OSTI)

    Pancake, Daniel; Rock, Cynthia M.; Creed, Richard [Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439 (United States)] [Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439 (United States); Donohoue, Tom; Martin, E. Ray; Mason, John A. [ANTECH Corporation 9050 Marshall Court, Westminster, CO, 80031 (United States)] [ANTECH Corporation 9050 Marshall Court, Westminster, CO, 80031 (United States); Norton, Christopher J.; Crosby, Daniel [Environmental Alternatives, Inc., 149 Emerald Street, Suite R, Keene, NH 03431 (United States)] [Environmental Alternatives, Inc., 149 Emerald Street, Suite R, Keene, NH 03431 (United States); Nachtman, Thomas J. [InstaCote, Inc., 160 C. Lavoy Road, Erie, MI, 48133 (United States)] [InstaCote, Inc., 160 C. Lavoy Road, Erie, MI, 48133 (United States)

    2013-07-01T23:59:59.000Z

    This paper describes the process of decommissioning two gloveboxes at the Argonne National Laboratory (ANL) that were employed for work with plutonium and other radioactive materials. The decommissioning process involved an initial phase of clearing tools and materials from the glove boxes and disconnecting them from the laboratory infrastructure. The removed materials, assessed as Transuranic (TRU) waste, were packaged into 55 gallon (200 litre) drums and prepared for ultimate disposal at the Waste Isolation Pilot Plant (WIPP) at Carlsbad New Mexico. The boxes were then sampled to determine the radioactive contents by means of smears that were counted with alpha and beta detectors to determine the residual surface contamination, especially in terms of alpha particle emitters that are an indicator of TRU activity. Paint chip samples were also collected and sent for laboratory analysis in order to ascertain the radioactive contamination contributing to the TRU activity as a fixed contamination. The investigations predicted that it may be feasible to reduce the residual surface contamination and render the glovebox structure low level waste (LLW) for disposal. In order to reduce the TRU activity a comprehensive decontamination process was initiated using chemical compounds that are particularly effective for lifting and dissolving radionuclides that adhere to the inner surfaces of the gloveboxes. The result of the decontamination process was a reduction in the TRU surface activity on the inner surfaces of the gloveboxes by four orders of magnitude in terms of disintegrations per unit area (DPA). The next phase of the process involved a comprehensive assay of the gloveboxes using a combination of passive neutron and gamma ray scintillation detectors and a shielded and collimated high purity Germanium (HPGe) gamma ray detector. The HPGe detector was used to obtain gamma ray spectra for a variety of measurement positions within the glovebox. The spectra were used to determine the TRU content of the boxes by assessing the activity of Am-241 (59 keV) and Pu-241 (414 keV). Using the data generated it was possible for qualified subject matter experts (SME) to assess that the gloveboxes could be consigned for disposition as LLW and not as TRU. Once this determination was assessed and accepted the gloveboxes were prepared for final disposition to the Nevada National Security Site (NNSS) - formerly the Nevada Test Site (NTS). This preparation involved fixing any remaining radioactive contamination within the gloveboxes by filling them with a foam compound, prior to transportation. Once the remaining contamination was fixed the gloveboxes were removed from the laboratory and prepared for transported by road to NNSS. This successful glovebox decontamination and decommissioning process illustrates the means by which TRU waste generation has been minimized, LLW generation has been maximized, and risk has been effectively managed. The process minimizes the volume of TRU waste and reduced the decommissioning time with significant cost savings as the result. (authors)

  20. Detonation-wave technique for on-load deposit removal from surfaces exposed to fouling; Part 1: Experimental investigation and development of the method

    SciTech Connect (OSTI)

    Hanjalic, K. (Univ. of Erlangen-Nuernberg (Germany). Lehrstuhl fuer Stroemungsmechanik); Smajevic, I. (Univ. of Sarajevo, Bosnia (Yugoslavia))

    1994-01-01T23:59:59.000Z

    The paper presents a description and results of the experimental research, development, and full-scale testing of a new technique for cleaning gas-swept surfaces exposed to fouling, such as found in boilers, furnaces, heat exchangers, reactors, and gas ducts, by means of detonation waves. Part 1 describes the principles and reports on experimental investigations and optimization of the technique. Part 2 reports on several years of experience in applying the technique in full-scale operation in two large coal-fired boilers. Experiments involved detailed measurements of the pressure wave characteristics at a laboratory-scale model of a boiler furnace at a range of operating conditions and produced necessary information for optimum design and operation of the detonation wave generator. The investigation enabled a close insight into the detonation and shock wave generation, their behavior during propagation through the connecting ducts, and attenuation in the inner space of the model furnace. A good indication has also been obtained of the wave impact and effects on deposit-removal from different packages of tube bundles, which were placed in the model boiler in order to mimic boiler heating surfaces.

  1. Low Dose Radiation Response Curves, Networks and Pathways in Human Lymphoblastoid Cells Exposed from 1 to 10 cGy of Acute Gamma Radiation

    SciTech Connect (OSTI)

    Wyrobek, A. J.; Manohar, C. F.; Nelson, D. O.; Furtado, M. R.; Bhattacharya, M. S.; Marchetti, F.; Coleman, M.A.

    2011-04-18T23:59:59.000Z

    We investigated the low dose dependency of the transcriptional response of human cells to characterize the shape and biological functions associated with the dose response curve and to identify common and conserved functions of low dose expressed genes across cells and tissues. Human lymphoblastoid (HL) cells from two unrelated individuals were exposed to graded doses of radiation spanning the range of 1-10 cGy were analyzed by transcriptome profiling, qPCR and bioinformatics, in comparison to sham irradiated samples. A set of {approx}80 genes showed consistent responses in both cell lines; these genes were associated with homeostasis mechanisms (e.g., membrane signaling, molecule transport), subcellular locations (e.g., Golgi, and endoplasmic reticulum), and involved diverse signal transduction pathways. The majority of radiation-modulated genes had plateau-like responses across 1-10 cGy, some with suggestive evidence that transcription was modulated at doses below 1 cGy. MYC, FOS and TP53 were the major network nodes of the low-dose response in HL cells. Comparison our low dose expression findings in HL cells with those of prior studies in mouse brain after whole body exposure, in human keratinocyte cultures, and in endothelial cells cultures, indicates that certain components of the low dose radiation response are broadly conserved across cell types and tissues, independent of proliferation status.

  2. Studying the protein expression in human B lymphoblastoid cells exposed to 1.8-GHz (GSM) radiofrequency radiation (RFR) with protein microarray

    SciTech Connect (OSTI)

    Zhijian, Chen [Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, Zhejiang (China) [Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, Zhejiang (China); Institute of Environmental Health, Medical College, Zhejiang University, Hangzhou 310058, Zhejiang (China); Xiaoxue, Li [Institute of Environmental Health, Medical College, Zhejiang University, Hangzhou 310058, Zhejiang (China)] [Institute of Environmental Health, Medical College, Zhejiang University, Hangzhou 310058, Zhejiang (China); Wei, Zheng [Zhejiang International Travel Healthcare Center, 230 Zhonghezhong Road, Hangzhou 310003 (China)] [Zhejiang International Travel Healthcare Center, 230 Zhonghezhong Road, Hangzhou 310003 (China); Yezhen, Lu; Jianlin, Lou; Deqiang, Lu; Shijie, Chen; Lifen, Jin [Institute of Environmental Health, Medical College, Zhejiang University, Hangzhou 310058, Zhejiang (China)] [Institute of Environmental Health, Medical College, Zhejiang University, Hangzhou 310058, Zhejiang (China); Jiliang, He, E-mail: he_jiliang@hotmail.com [Institute of Environmental Health, Medical College, Zhejiang University, Hangzhou 310058, Zhejiang (China)] [Institute of Environmental Health, Medical College, Zhejiang University, Hangzhou 310058, Zhejiang (China)

    2013-03-29T23:59:59.000Z

    Highlights: ? Protein microarray shows the differential expression of 27 proteins induced by RFR. ? RPA32 related to DNA repair is down-regulated in Western blot. ? p73 related to cell genome stability and apoptosis is up-regulated in Western blot. -- Abstract: In the present study, the protein microarray was used to investigate the protein expression in human B-cell lymphoblastoid cells intermittently exposed to 1.8-GHz GSM radiofrequency radiation (RFR) at the specific absorption rate (SAR) of 2.0 W/kg for 24 h. The differential expression of 27 proteins was found, which were related to DNA damage repair, apoptosis, oncogenesis, cell cycle and proliferation (ratio >1.5-fold, P < 0.05). The results validated with Western blot assay indicated that the expression of RPA32 was significantly down-regulated (P < 0.05) while the expression of p73 was significantly up-regulated in RFR exposure group (P < 0.05). Because of the crucial roles of those proteins in DNA repair and cell apoptosis, the results of present investigation may explain the biological effects of RFR on DNA damage/repair and cell apoptosis.

  3. Low dose radiation hypersensitivity and clustered DNA damages in human fibroblasts exposed to low dose and dose rate protons or 137CS y-rays

    SciTech Connect (OSTI)

    Bennett P. V.; Bennett, P.V.; Keszenman, D.J.; Johnson, A.M.; Sutherland, B.M.; Wilson, P.F.

    2013-05-14T23:59:59.000Z

    Effective radioprotection for human space travelers hinges upon understanding the individual properties of charged particles. A significant fraction of particle radiation astronauts will encounter in space exploratory missions will come from high energy protons in galactic cosmic radiation (GCR) and/or possible exposures to lower energy proton flux from solar particle events (SPEs). These potential exposures present major concerns for NASA and others, in planning and executing long term space exploratory missions. We recently reported cell survival and transformation (acquisition of anchorage-independent growth in soft agar) frequencies in apparently normal NFF-28 primary human fibroblasts exposed to 0-30 cGy of 50MeV, 100MeV (SPE-like), or 1000 MeV (GCR-like) monoenergetic protons. These were modeled after 1989 SPE energies at an SPE-like low dose-rate (LDR) of 1.65 cGy/min or high dose rate (HDR) of 33.3 cGy/min delivered at the NASA Space Radiation Laboratory (NSRL) at BNL.

  4. DATABASE CLUSTERING AND DATA WAREHOUSING MeiLing Shyu, ShuChing Chen, and R. L. Kashyap

    E-Print Network [OSTI]

    Chen, Shu-Ching

    process leads to a better federation of data warehouses and reduces the cost of query processing extraction, data ar­ chaeology, data dredging, data analysis, etc. carry a similar or slightly different

  5. DATABASE CLUSTERING AND DATA WAREHOUSING Mei-Ling Shyu, Shu-Ching Chen, and R. L. Kashyap

    E-Print Network [OSTI]

    Chen, Shu-Ching

    process leads to a better federation of data warehouses and reduces the cost of query processing in databases, knowledge mining from databases, knowledge extraction, data ar- chaeology, data dredging, data

  6. Off-resonant transient birefringence in liquids Minhaeng Cho, Mei Du, Norbert F. Scherer,a) and Graham FL Fleming

    E-Print Network [OSTI]

    Mukamel, Shaul

    ) technique reveal the liquid responses with respect to a step- like perturbation generated by a sudden change signal is related to the step- response function of the solvent. The pulse response and the step response relevant for the birefringence signal in terms of a convolution of the tensorial polarizability response

  7. Protein Folding Dynamics via Quantification of Kinematic Energy Landscape Sema Kachalo, Hsiao-Mei Lu, and Jie Liang*

    E-Print Network [OSTI]

    Dai, Yang

    Protein Folding Dynamics via Quantification of Kinematic Energy Landscape Se¨ma Kachalo, Hsiao of protein folding has been studied ex- tensively [1,2]. A remarkable observation is that protein folding that protein folding rates are largely determined by the topology of their native structure [3]. Theoretical

  8. 19USDA Forest Service Gen.Tech.Rep. PSW-GTR-166. 1998. A variety of vascular plant species exhibit typical foliar injury symptoms when exposed to ambient ozone, making

    E-Print Network [OSTI]

    Standiford, Richard B.

    exhibit typical foliar injury symptoms when exposed to ambient ozone, making them useful as bioindicators ozone monitors are not available. Bioindicators are often introduced plant species known as sentinels. They are known to be sensitive to ozone and will respond rapidly if they are given special care to ensure ozone

  9. Comparative DNA microarray analysis of human monocyte derived dendritic cells and MUTZ-3 cells exposed to the moderate skin sensitizer cinnamaldehyde

    SciTech Connect (OSTI)

    Python, Francois [Experimental Product Safety, Procter and Gamble Co., Cosmital SA, Marly (Switzerland); Goebel, Carsten [Product Safety, Human Safety Assessment, Procter and Gamble Service GmbH, Darmstadt (Germany); Aeby, Pierre [Experimental Product Safety, Procter and Gamble Co., Cosmital SA, Marly (Switzerland)], E-mail: pierre_aeby@bluewin.ch

    2009-09-15T23:59:59.000Z

    The number of studies involved in the development of in vitro skin sensitization tests has increased since the adoption of the EU 7th amendment to the cosmetics directive proposing to ban animal testing for cosmetic ingredients by 2013. Several studies have recently demonstrated that sensitizers induce a relevant up-regulation of activation markers such as CD86, CD54, IL-8 or IL-1{beta} in human myeloid cell lines (e.g., U937, MUTZ-3, THP-1) or in human peripheral blood monocyte-derived dendritic cells (PBMDCs). The present study aimed at the identification of new dendritic cell activation markers in order to further improve the in vitro evaluation of the sensitizing potential of chemicals. We have compared the gene expression profiles of PBMDCs and the human cell line MUTZ-3 after a 24-h exposure to the moderate sensitizer cinnamaldehyde. A list of 80 genes modulated in both cell types was obtained and a set of candidate marker genes was selected for further analysis. Cells were exposed to selected sensitizers and non-sensitizers for 24 h and gene expression was analyzed by quantitative real-time reverse transcriptase-polymerase chain reaction. Results indicated that PIR, TRIM16 and two Nrf2-regulated genes, CES1 and NQO1, are modulated by most sensitizers. Up-regulation of these genes could also be observed in our recently published DC-activation test with U937 cells. Due to their role in DC activation, these new genes may help to further refine the in vitro approaches for the screening of the sensitizing properties of a chemical.

  10. Chemical alteration of limestone and marble samples exposed to acid rain and weathering in the eastern United States, 1984--1988

    SciTech Connect (OSTI)

    Reimann, K.J.

    1991-06-01T23:59:59.000Z

    In a long-term program that began in 1984, limestone and marble briquettes have been exposed to both anthropogenic acid deposition and natural weathering of four field sites in the eastern United States. Similar tests began at an Ohio site in 1986. Effects of exposure on the briquettes and other materials at the sites are evaluated periodically by several federal agencies cooperating in the National Acid Precipitation Assessment Program (NAPAP). A primary contribution of Argonne National Laboratory to the NAPAP has been chemical analysis to determine changes in the samples caused by exposure to the environment. Wet chemical analysis was used to detect sulfates, nitrates, fluorides, chlorides, and a series of metal cations in sequential layers of stone removed from the briquettes after field exposure. Results from the first four years of the program indicate that rinsing by rain keeps skyward-facing stone relatively clean of reaction products, especially sulfate, the most abundant product. On groundward-facing samples, sulfate concentrations increased linearly with exposure time, and values were proportional to atmospheric SO{sub 2} concentrations at the site. Sulfate concentrations in groundward samples were much higher in limestone than in marble, because of the greater porosity of the limestone. A steep sulfate gradient was seen in both sample types from the surface to the interior. On skyward surfaces, material losses per rain event due to complete dissolution of accumulated sulfates were approximately equal to concentrations measured in runoff. Preexposed limestone samples had sulfate accumulations deep in their interiors, while fresh, unexposed limestone did not. No substantial changes in cation accumulations wee detected in either limestone or marble.

  11. Integration of the predictions of two models with dose measurements in a case study of children exposed to the emissions of a lead smelter

    SciTech Connect (OSTI)

    Bonnard, R.; McKone, T.E.

    2009-03-01T23:59:59.000Z

    The predictions of two source-to-dose models are systematically evaluated with observed data collected in a village polluted by a currently operating secondary lead smelter. Both models were built up from several sub-models linked together and run using Monte-Carlo simulation, to calculate the distribution children's blood lead levels attributable to the emissions from the facility. The first model system is composed of the CalTOX model linked to a recoded version of the IEUBK model. This system provides the distribution of the media-specific lead concentrations (air, soil, fruit, vegetables and blood) in the whole area investigated. The second model consists of a statistical model to estimate the lead deposition on the ground, a modified version of the model HHRAP and the same recoded version of the IEUBK model. This system provides an estimate of the concentration of exposure of specific individuals living in the study area. The predictions of the first model system were improved in terms of accuracy and precision by performing a sensitivity analysis and using field data to correct the default value provided for the leaf wet density. However, in this case study, the first model system tends to overestimate the exposure due to exposed vegetables. The second model was tested for nine children with contrasting exposure conditions. It managed to capture the blood levels for eight of them. In the last case, the exposure of the child by pathways not considered in the model may explain the failure of the model. The interest of this integrated model is to provide outputs with lower variance than the first model system, but at the moment further tests are necessary to conclude about its accuracy.

  12. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 5. Accidental Releases

    SciTech Connect (OSTI)

    Peterson, S

    2007-08-15T23:59:59.000Z

    Over the course of fifty-three years, LLNL had six acute releases of tritiated hydrogen gas (HT) and one acute release of tritiated water vapor (HTO) that were too large relative to the annual releases to be included as part of the annual releases from normal operations detailed in Parts 3 and 4 of the Tritium Dose Reconstruction (TDR). Sandia National Laboratories/California (SNL/CA) had one such release of HT and one of HTO. Doses to the maximally exposed individual (MEI) for these accidents have been modeled using an equation derived from the time-dependent tritium model, UFOTRI, and parameter values based on expert judgment. All of these acute releases are described in this report. Doses that could not have been exceeded from the large HT releases of 1965 and 1970 were calculated to be 43 {micro}Sv (4.3 mrem) and 120 {micro}Sv (12 mrem) to an adult, respectively. Two published sets of dose predictions for the accidental HT release in 1970 are compared with the dose predictions of this TDR. The highest predicted dose was for an acute release of HTO in 1954. For this release, the dose that could not have been exceeded was estimated to have been 2 mSv (200 mrem), although, because of the high uncertainty about the predictions, the likely dose may have been as low as 360 {micro}Sv (36 mrem) or less. The estimated maximum exposures from the accidental releases were such that no adverse health effects would be expected. Appendix A lists all accidents and large routine puff releases that have occurred at LLNL and SNL/CA between 1953 and 2005. Appendix B describes the processes unique to tritium that must be modeled after an acute release, some of the time-dependent tritium models being used today, and the results of tests of these models.

  13. Radioactive air emissions notice of construction for installation and operation of a waste retrieval system and tanks 241-AP-102 and 241-AP-104 project

    SciTech Connect (OSTI)

    DEXTER, M.L.

    1999-11-15T23:59:59.000Z

    This document serves as a notice of construction (NOC) pursuant to the requirements of Washington Administrative Code (WAC) 246 247-060, and as a request for approval to modify pursuant to 40 Code of Federal Regulations (CFR) 61 07 for the installation and operation of one waste retrieval system in the 24 1 AP-102 Tank and one waste retrieval system in the 241 AP 104 Tank Pursuant to 40 CFR 61 09 (a)( 1) this application is also intended to provide anticipated initial start up notification Its is requested that EPA approval of this application will also constitute EPA acceptance of the initial start up notification Project W 211 Initial Tank Retrieval Systems (ITRS) is scoped to install a waste retrieval system in the following double-shell tanks 241-AP 102-AP 104 AN 102, AN 103, AN-104, AN 105, AY 102 AZ 102 and SY-102 between now and the year 2011. Because of the extended installation schedules and unknowns about specific activities/designs at each tank, it was decided to submit NOCs as that information became available This NOC covers the installation and operation of a waste retrieval system in tanks 241 AP-102 and 241 AP 104 Generally this includes removal of existing equipment installation of new equipment and construction of new ancillary equipment and buildings Tanks 241 AP 102 and 241 AP 104 will provide waste feed for immobilization into a low activity waste (LAW) product (i.e. glass logs) The total effective dose equivalent (TEDE) to the offsite maximally exposed individual (MEI) from the construction activities is 0 045 millirem per year The unabated TEDE to the offsite ME1 from operation of the mixer pumps is 0 042 millirem per year.

  14. Radioactive air emissions notice of construction 241-ER-311 catch tank

    SciTech Connect (OSTI)

    HILL, J.S.

    1999-11-01T23:59:59.000Z

    The following description, attachments and references are provided to the Washington State Department of Health (WDOH), Division of Radiation Protection, Air Emissions & Defense Waste Section as a notice of construction (NOC) in accordance with the Washington Administrative Code (WAC) 246-247, Radiation Protection - Air Emissions. The WAC 246-247-060, ''Applications, registration and licensing,'' states ''This section describes the information requirements for approval to construct, modify, and operate an emission unit. Any NOC requires the submittal of the information listed in Appendix A,'' Appendix A (WAC 246-247-110) lists the requirements that must be addressed. Additionally, the following description, attachments and references are provided to the U.S. Environmental Protection Agency (EPA) as an NOC, in accordance with Title 40, Code of Federal Regulations (CFR), Part 6 1, ''National Emission Standards for Hazardous Air Pollutants.'' The information required for submittal to the EPA is specified in 40 CFR 61.07. The potential emissions from this activity are estimated to provide less than 0.1 millirem/year total effective dose equivalent (TEDE) to the hypothetical offsite maximally exposed individual (MEI), and commencement is needed within a short time frame. Therefore, this application is also intended to provide notification of the anticipated date of initial startup in accordance with the requirement listed in 40 CFR 61.09(a)(l), and it is requested that approval of this application will also constitute EPA acceptance of this 40 CFR 61.09(a)(l) notification. Written notification of the actual date of initial startup, in accordance with the requirement listed in 40 CFR 61.09(a)(2) will be provided later.

  15. Notice of Construction for the Magnesium Hydroxide Precipitation Process at the Plutonium Finishing Plant (PFP)

    SciTech Connect (OSTI)

    JANSKY, M.T.

    1999-12-01T23:59:59.000Z

    The following description and any attachments and references are provided to the Washington State Department of Health (WDOH), Division of Radiation Protection, Air Emissions & Defense Waste (WAC) 246-247, Radiation Protection-Air Emissions. The WAC 246-247-060, ''Applications, registration, and licensing'', states ''This section describes the information requirements for approval to construct, modify, and operate an emission unit. Any NOC requires the submittal of information listed in Appendix A.'' Appendix A (WAC 246-247-1 10) lists the requirements that must be addressed. Additionally, the following description, attachments and references are provided to the US Environmental Protection Agency (EPA) as an NOC, in accordance with Title 40, Code of Federal Regulations (CFR), Part 61, ''National Emission Standards for Hazardous Air Pollutants.'' The information required for submittal to the EPA is specified in 40 CFR 61.07. The potential emissions from this activity are estimated to provide greater than 0.1 millirem per year total effective dose equivalent (TEDE) to the hypothetical offsite maximally exposed individual (MEI), and commencement is needed within a short time. Therefore, this application also is intended to provide notification of the anticipated date of initial startup in accordance with the requirement listed in 40 CFR 61.09(a)(1), and it is requested that approval of this application also will constitute EPA acceptance of this initial startup notification. Written notification of the actual date of initial startup, in accordance with the requirement listed in 40 CFR 61.09(a)(2) will be provided at a later date. This NOC covers the activities associated with the Construction and operation activities involving the magnesium hydroxide precipitation process of plutonium solutions within the Plutonium Finishing Plant (PFP).

  16. Notice of construction for tank waste remediation system vadose zone characterization

    SciTech Connect (OSTI)

    HILL, J.S.

    1999-05-04T23:59:59.000Z

    The following description and any attachments and references are provided to the Washington State Department of Health (WDOH), Division of Radiation Protection, Air Emissions & Defense Waste Section as a notice of constriction (NOC) in accordance with Washington Administrative Code (WAC) 246-247, Radiation Protection - Air Emissions. The WAC 246-247-060, ''Applications, registration, and licensing'', states ''This section describes the information requirements for approval to construct, modify, and operate an emission unit. Any NOC requires the submittal of information listed in Appendix A.'' Appendix A (WAC 246-247-1 10) lists the requirements that must be addressed. Additionally, the following description, attachments and references are provided to the U.S. Environmental Protection Agency (EPA) as an NOC, in accordance with Title 40 Code of Federal Regulations (CFR), Part 61, ''National Emission Standards for Hazardous Air Pollutants.'' The information required for submittal to the EPA is specified in 40 CFR 61.07. The potential emissions from this activity are estimated to provide less than 0.1 millirem/year total effective dose equivalent (TEDE) to the hypothetical offsite maximally exposed individual (MEI), and commencement is needed within a short time frame. Therefore, this application is also intended to provide notification of the anticipated date of initial startup in accordance with the requirement listed in 40 CFR 61.09(a)(1), and it is requested that approval of this application will also constitute EPA acceptance of this initial start-up notification. Written notification of the actual date of initial startup, in accordance with the requirement listed in 40 CFR 61.09(a)(2) will be provided at a later date. This NOC covers the activities associated with vadose zone characterization within the Single-Shell Tank Farms located in the 200-East and 200-West Areas of the Hanford Site. Vadose zone characterization activities include the drilling and sampling of soil from the surface to the depth of groundwater.

  17. Maximizing electrical activation of ion-implanted Si in In0.53Ga0.47As A. G. Lind, N. G. Rudawski, N. J. Vito, C. Hatem, M. C. Ridgway, R. Hengstebeck, B. R. Yates, and K. S. Jones

    E-Print Network [OSTI]

    Florida, University of

    Maximizing electrical activation of ion-implanted Si in In0.53Ga0.47As A. G. Lind, N. G. Rudawski. Lind,1,a) N. G. Rudawski,2 N. J. Vito,1 C. Hatem,3 M. C. Ridgway,4 R. Hengstebeck,5 B. R. Yates,1 and K

  18. Maximizing available spectrum for cognitive radios

    E-Print Network [OSTI]

    Mishra, Shridhar Mubaraq

    2009-01-01T23:59:59.000Z

    of the primary and secondary users is key for such anof the primary and secondary users is key for such anof the primary and secondary users is key for such an

  19. Maximizing (Productivity and Efficiency) in Contemporary Agriculture

    E-Print Network [OSTI]

    Fixen, Paul

    2009-01-01T23:59:59.000Z

    Paris, France. Dupont. 2009. Agriculture is up to globalFAO. 2008. State of Food and Agriculture (page 62).Food and Agriculture Organization of the United Nations.

  20. Maximizing the enzymic saccharification of corn stover

    E-Print Network [OSTI]

    Kaar, William Edward

    1996-01-01T23:59:59.000Z

    /g i3-glucosidase (Novozyme 188) and 5 FPU/g cellulase (Spezyme-CP) were added The flasks were then cultured in an incubated shaker (50 'C, 100 rpm, Amerex Instruments ' All enzyme loadings given as activity units per gram of dry biomass. Orbital...

  1. Iterative Estimation Maximization for Stochastic Linear Programs ...

    E-Print Network [OSTI]

    2009-03-26T23:59:59.000Z

    Pu Huang. IBM T.J.Watson Research Center ... samples, which makes it extreme efficient for real-world, large-scale problems. ... problem using an S&P 500 data set. ..... 1 Consumer Discretionary. 80. 2 Consumer Staples. 41. 3 Energy. 39.

  2. 1. RELEVANCE / OBJECTIVE Maximizing Photosynthetic Efficiencies

    E-Print Network [OSTI]

    apply directly to green alga hydrogen- production, biomass accumulation, and carbon sequestration efforts. Other branches of the DOE (carbon sequestration ) benefited from this work (see 4A, Technology of the DOE, a large-scale, carbon sequestration pilot program with green algae. Mera Pharma is currently

  3. Live Streaming with Gossip Maxime Monod

    E-Print Network [OSTI]

    Guerraoui, Rachid

    ;2 TV ordinaire: tout en HD Live streaming Une source produit du contenu multimédia (un flux) n clients (n large) broadcasting diffusion ... ... ... IP TV, Web TV, P2P TV, ... vs 192K requêtes/jour 78K que le premier #12;·Gossip++Environment contraint ·HEAPEnvironnement hétérogène ·LiFT

  4. SUPPLY-SIDE OPTIMIZATION : MAXIMIZING ABSORPTIVE RATES

    E-Print Network [OSTI]

    Jumars, Pete

    and Piglet walked home thoughtfully together in the golden evening, and for a long time they were silent The World of Pooh INTRODUCTION The complexities of feeding behavior extend far beyond the simple priorities source of the material and energy for this escalation in heterotrophs with digestive tracts is absorption

  5. THE MAXIMAL EXPECTED LIFETIME OF BROWNIAN MOTION ...

    E-Print Network [OSTI]

    2010-06-17T23:59:59.000Z

    Pitman (Advanced Publishing Program), Boston, Mass.-London. [2] R. Ba˜nuelos, 2009 Four unknown constants. Oberwolfach Report 06, workshop on'Low ...

  6. Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle...

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

    Besides their energy security and environmental benefits, many alternative fuels such as biodiesel, ethanol, and natural gas have unique chemical properties that offer advantages...

  7. Know how to maximize maintenance spending

    SciTech Connect (OSTI)

    Carrino, A.J.; Jones, R.B.; Platt, W.E.; Tiffany, E.D. [Solomon Associates (United States)

    2009-07-15T23:59:59.000Z

    Solomon has developed a methodology to determine a large optimum point where availability meets maintenance spending for Powder River Basin (PRB) coal-fired units. Using a database of sufficient size and composition across various operating ranges, Solomon generated an algorithm that predicts the relationship between maintenance spending and availability. Coupling this generalized algorithm with a unit-specific market-loss curve determines the optimum spending for a facility. The article presents the results of the analysis, how this methodology can be applied to develop optimum operating and financial targets for specific units and markets and a process to achieve those targets. It also describes how this methodology can be used for other types of fossil-fired technologies and future enhancements to the analysis. 5 figs.

  8. The smallest refrigerators can reach maximal efficiency

    E-Print Network [OSTI]

    Paul Skrzypczyk; Nicolas Brunner; Noah Linden; Sandu Popescu

    2011-12-02T23:59:59.000Z

    We investigate whether size imposes a fundamental constraint on the efficiency of small thermal machines. We analyse in detail a model of a small self-contained refrigerator consisting of three qubits. We show analytically that this system can reach the Carnot efficiency, thus demonstrating that there exists no complementarity between size and efficiency.

  9. Identifying Energy Systems that Maximize Cogeneration Savings 

    E-Print Network [OSTI]

    Ahner, D. J.

    1988-01-01T23:59:59.000Z

    energy eff1c1ency n1. 1s a From equat10ns (3) - (7). max1mum energy funct10n of the power heat rate HR c 1 for th1s value, V, 1s atta1ned when: technology conf1gurat10n. Other conf1gurat10ns may result 1n FC1h1 ~ FCuHR u ~~ (7) 1ndependence between... rate technolog1es and 1s a funct10n of the s1ze and akw1 at s1te 1 conf1gurat10n of the cogen plant. The process steam heat rate HR p 1' depends on the process Independent systems have the des1gn and steam cond1t10n requ1red. operat1ng capab111ty...

  10. Sandia National Laboratories: maximizing device performance

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

    and minimize environmental effects. The CEC array optimization framework was applied to Cobscook Bay, Maine, the first deployment site of the Ocean Renewable Power Company's...

  11. Maximizing available spectrum for cognitive radios

    E-Print Network [OSTI]

    Mishra, Shridhar Mubaraq

    2009-01-01T23:59:59.000Z

    Voronoi regions of the transmission towers for TV channelthe KCNS transmission from Sutro tower. Assume channel 40 isprimary transmission if we are beyond that tower’s no-talk

  12. Dynamic Network Utility Maximization with Delivery Contracts

    E-Print Network [OSTI]

    2007-09-30T23:59:59.000Z

    Sep 30, 2007 ... We briefly describe a heuristic, based on model predictive control, ... In the most common case, the route of a flow will be a path, from a source ...

  13. Maximizing the enzymic saccharification of corn stover 

    E-Print Network [OSTI]

    Kaar, William Edward

    1996-01-01T23:59:59.000Z

    ; thus, biomass has considerable potential as a fermentation feedstock. Corn stover represents an especially important resource because it is the single largest source of agricultural residue in the United States. The best method to obtain fermentable...

  14. Logarithmic Singularities and Maximally Supersymmetric Amplitudes

    E-Print Network [OSTI]

    Zvi Bern; Enrico Herrmann; Sean Litsey; James Stankowicz; Jaroslav Trnka

    2014-12-30T23:59:59.000Z

    The dual formulation of planar N = 4 super-Yang-Mills scattering amplitudes makes manifest that the integrand has only logarithmic singularities and no poles at infinity. Recently, Arkani-Hamed, Bourjaily, Cachazo and Trnka conjectured the same singularity properties hold to all loop orders in the nonplanar sector as well. Here we conjecture that to all loop orders these constraints give us the key analytic information contained in dual conformal symmetry. We also conjecture that to all loop orders, while N = 8 supergravity has poles at infinity, at least at four points it has only logarithmic singularities at finite locations. We provide nontrivial evidence for these conjectures. For the three-loop four-point N = 4 super-Yang-Mills amplitude, we explicitly construct a complete basis of diagram integrands that has only logarithmic singularities and no poles at infinity. We then express the complete amplitude in terms of the basis diagrams, with the coefficients determined by unitarity. We also give examples at three loops showing how to make the logarithmic singularity properties manifest via dlog forms. We give additional evidence at four and five loops supporting the nonplanar logarithmic singularity conjecture. Furthermore, we present a variety of examples illustrating that these constraints are more restrictive than dual conformal symmetry. Our investigations show that the singularity structures of planar and nonplanar amplitudes in N = 4 super-Yang-Mills are strikingly similar. While it is not clear how to extend either dual conformal symmetry or a dual formulation to the nonplanar sector, these results suggest that related concepts might exist and await discovery. Finally, we describe the singularity structure of N = 8 supergravity at three loops and beyond.

  15. Maximizing dose reductions with cardiac CT

    E-Print Network [OSTI]

    Budoff, Matthew J.

    2009-01-01T23:59:59.000Z

    when heart rates are [60 bpm or when heart rate variabilitya heart rate dependent fashion as follows: 30–39 bpm, 175 mspadding; 40–49 bpm, 150 ms padding; 50– 59 bpm, 125 ms

  16. WEIGHTED NORM INEQUALITIES FOR FRACTIONAL MAXIMAL ...

    E-Print Network [OSTI]

    2013-11-19T23:59:59.000Z

    establish a slightly stronger version of this inequality with the use of a novel extension of ... we obtain the sharp inequality of Lacey, Moen, Pérez and Torres. 1.

  17. Maximizing expected utility over a knapsack constraint

    E-Print Network [OSTI]

    2014-08-11T23:59:59.000Z

    f(t)=1 ? e??t for ? > 0, and power utility f(t) = tp for 0 true stochastic problem of similar relative error.

  18. Defining Conditions for Maximizing Bioreduction of Uranium

    SciTech Connect (OSTI)

    David C. White; Aaron D. Peacock; Yun-Juan Chang; Roland Geyer; Philip E. Long; Jonathan D. Istok; Amanda N.; R. Todd Anderson; Dora Ogles

    2004-03-17T23:59:59.000Z

    Correlations between modifying electron donor and acceptor accessibility, the in-situ microbial community, and bioreduction of Uranium at the FRC and UMTRA research sites indicated that significant modifications in the rate, amount and by inference the potential stability of immobilized Uranium are feasible in these environments. The in-situ microbial community at these sites was assessed with a combination of lipid and real-time molecular techniques providing quantitative insights of effects of electron donor and manipulations. Increased (9mM in 2003 vs 3mM 2002) donor amendment at the Old Rifle site resulted in the stimulation of anaerobic conditions downgradient of the injection gallery. Biomass within the test plot increased relative to the control well at 17 feet. Q-PCR specific for IRB/SRB showed increased copy numbers within the test plot and was the highest at the injection gallery. Q-PCR specific for Geobacter sp. showed increased copy numbers within the test plot but further downgradient from the injection gallery than the SRB/IRB. DNA and Lipid analysis confirm changes in the microbial community structure due to donor addition. See also the PNNL (Long) and UMASS (Anderson) posters for more information about this site.

  19. Maximizing dose reductions with cardiac CT

    E-Print Network [OSTI]

    Budoff, Matthew J.

    2009-01-01T23:59:59.000Z

    for current scanners). The bowtie ?lter allows for smallerless photons. Thus, the bowtie ?lter allows less X-rays outsee #4 above). The bowtie ?lter allows more photons to go

  20. Teleporting Noncommuting Qubits Require Maximal Entanglement

    E-Print Network [OSTI]

    Sibasish Ghosh; Guruprasad Kar; Anirban Roy; Debasis Sarkar; Ujjwal Sen

    2000-12-21T23:59:59.000Z

    Very recently, it was shown by Ghosh, Kar, Roy and Sen (\\emph{Entanglement vs. Noncommutativity in Teleportation}, quant-ph/0010012) that if it is \\emph{a priori} known that the state to be teleported is from a commuting set of qubits, a separable channel is sufficient. We show that 1 ebit of entanglement is a necessary resource to teleport a qubit even when it is known to be one of two noncommuting states.

  1. Maximizing available spectrum for cognitive radios

    E-Print Network [OSTI]

    Mishra, Shridhar Mubaraq

    2009-01-01T23:59:59.000Z

    chart of the Federal Communications Commission (FCC). Allbands,” Federal Communications Commission, Tech. Rep. 03-authority (the Federal Communications Commission (FCC) in

  2. "Dedicated to Maximizing Planetary Sample Science

    E-Print Network [OSTI]

    Rathbun, Julie A.

    that evaluated sample mass with regards to previous Apollo Program surface activity, scientific productivity and environmentally sensitive samples. (2) This geological sample mass exceeds that of the Apollo 17 mission by only that of the Apollo Program to demonstrate we have progressed beyond Apollo. (3) Using the Apollo sample containers

  3. Method of making maximally dispersed heterogeneous catalysts

    DOE Patents [OSTI]

    Jennison, Dwight R. (Albuquerque, NM)

    2005-11-15T23:59:59.000Z

    A method of making a catalyst with monolayer or sub-monolayer metal by controlling the wetting characteristics on the support surface and increasing the adhesion between the catalytic metal and an oxide layer. There are two methods that have been demonstrated by experiment and supported by theory. In the first method, which is useful for noble metals as well as others, a negatively-charged species is introduced to the surface of a support in sub-ML coverage. The layer-by-layer growth of metal deposited onto the oxide surface is promoted because the adhesion strength of the metal-oxide interface is increased. This method can also be used to achieve nanoislands of metal upon sub-ML deposition. The negatively-charged species can either be deposited onto the oxide surface or a compound can be deposited that dissociates on, or reacts with, the surface to form the negatively-charged species. The deposited metal adatoms can thereby bond laterally to the negatively-charged species as well as vertically to the oxide surface. Thus the negatively-charged species serve as anchors for the metal. In the second method, a chemical reaction that occurs when most metals are deposited on a fully hydroxylated oxide surface is used to create cationic metal species that bind strongly both to the substrate and to metallic metal atoms. These are incorporated into the top layer of the substrate and bind strongly both to the substrate and to metallic metal atoms. In this case, these oxidized metal atoms serve as the anchors. Here, as in the previous method, nanoislands of catalytic metal can be achieved to increase catalytic activity, or monolayers or bilayers of reactive metal can also be made.

  4. Maximizing the Potential of Renewable Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighand Retrievals from a NewCuneo Matthew Cuneoand Renewable Energy,Naval

  5. Maximizing the Potential of Renewable Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighand Retrievals from a NewCuneo Matthew Cuneoand Renewable

  6. SPECIAL ANALYSIS AIR PATHWAY MODELING OF E-AREA LOW-LEVEL WASTE FACILITY

    SciTech Connect (OSTI)

    Hiergesell, R.; Taylor, G.

    2011-08-30T23:59:59.000Z

    This Special Analysis (SA) was initiated to address a concern expressed by the Department of Energy's Low Level Waste Disposal Facility Federal Review Group (LFRG) Review Team during their review of the 2008 E-Area Performance Assessment (PA) (WSRC, 2008). Their concern was the potential for overlapping of atmospheric plumes, emanating from the soil surface above SRS LLW disposal facilities within the E-Area, to contribute to the dose received by a member of the public during the Institutional Control (IC) period. The implication of this concern was that the dose to the maximally-exposed individual (MEI) located at the SRS boundary might be underestimated during this time interval. To address this concern a re-analysis of the atmospheric pathway releases from E-Area was required. In the process of developing a new atmospheric release model (ARM) capable of addressing the LFRG plume overlap concern, it became obvious that new and better atmospheric pathway disposal limits should be developed for each of the E-Area disposal facilities using the new ARM. The scope of the SA was therefore expanded to include the generation of these new limits. The initial work conducted in this SA was to develop a new ARM using the GoldSim{reg_sign} program (GTG, 2009). The model simulates the subsurface vapor diffusion of volatile radionuclides as they release from E-Area disposal facility waste zones and migrate to the land surface. In the process of this work, many new features, including several new physical and chemical transport mechanisms, were incorporated into the model. One of the most important improvements was to incorporate a mechanism to partition volatile contaminants across the water-air interface within the partially saturated pore space of the engineered and natural materials through which vapor phase transport occurs. A second mechanism that was equally important was to incorporate a maximum concentration of 1.9E-07 Ci/m{sup 3} of {sup 14}CO{sub 2} in the air-filled pores of cementitious materials. The ARM also combines the individual transport models constructed for each E-Area disposal facility into a single model, and was ultimately used to analyze the LFRG concern regarding the potential for atmospheric plume overlap at the SRS boundary during the IC period. To evaluate the plume overlap issue, a conservative approach was adopted whereby the MEI at the SRS boundary was exposed to the releases from all E-Area disposal facilities simultaneously. This is equivalent to a 100% overlap of all atmospheric plumes emanating from E-Area. Should the dose received from this level of atmospheric plume overlap still fall below the permissible exposure level of 10 mrem/yr, then the LFRG concern would be alleviated. The structuring of the ARM enables this evaluation to be easily performed. During the IC period, the peak of the 'total plume overlap dose' was computed to be 1.9E-05 mrem/yr, which is five orders of magnitude lower than the 10 mrem/yr PA performance objective for the atmospheric release pathway. The main conclusion of this study is that for atmospheric releases from the E-Area disposal facilities, plume overlap does not cause the total dose to the MEI at the SRS boundary during the IC to exceed the Performance Assessment (PA) performance objective. Additionally, the potential for plume overlap was assessed in the post-Institutional Control period. Atmospheric plume overlap is less likely to occur during this period but conceivably could occur if the prevailing wind direction shifted so as to pass directly over all EArea disposal facilities and transport airborne radionuclides to the MEI at the 100 m point of compliance (POC). This concern was also demonstrated of little concern, as the maximum plume overlap dose was found to be 1.45E+00 mrem/yr (or {approx}15% of the performance measure) during this period and under these unlikely conditions.

  7. Role of genetic polymorphisms of CYP1A1, CYP3A5, CYP2C9, CYP2D6, and PON1 in the modulation of DNA damage in workers occupationally exposed to organophosphate pesticides

    SciTech Connect (OSTI)

    Singh, Satyender [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India)] [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India); Kumar, Vivek [Environmental Biochemistry and Molecular Biology laboratory, Department of Biochemistry, University College of Medical Sciences and GTB Hospital, University of Delhi, Dilshad Garden, Delhi-110095 (India)] [Environmental Biochemistry and Molecular Biology laboratory, Department of Biochemistry, University College of Medical Sciences and GTB Hospital, University of Delhi, Dilshad Garden, Delhi-110095 (India); Vashisht, Kapil; Singh, Priyanka [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India)] [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India); Banerjee, Basu Dev, E-mail: banerjeebd@hotmail.com [Environmental Biochemistry and Molecular Biology laboratory, Department of Biochemistry, University College of Medical Sciences and GTB Hospital, University of Delhi, Dilshad Garden, Delhi-110095 (India); Rautela, Rajender Singh; Grover, Shyam Sunder; Rawat, Devendra Singh; Pasha, Syed Tazeen [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India)] [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India); Jain, Sudhir Kumar [Centre for Epidemiology and Parasitic Diseases, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India)] [Centre for Epidemiology and Parasitic Diseases, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India); Rai, Arvind [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India)] [Division of Biochemistry and Biotechnology, National Centre for Disease Control 22, Sham Nath Marg, Delhi-110054 (India)

    2011-11-15T23:59:59.000Z

    Organophosphate pesticides (OPs) are primarily metabolized by several xenobiotic metabolizing enzymes (XMEs). Very few studies have explored genetic polymorphisms of XMEs and their association with DNA damage in pesticide-exposed workers. The present study was designed to determine the role of genetic polymorphisms of CYP1A1, CYP3A5, CYP2C9, CYP2D6, and PON1 in the modulation of DNA damage in workers occupationally exposed to OPs. We examined 284 subjects including 150 workers occupationally exposed to OPs and 134 normal healthy controls. The DNA damage was evaluated using the alkaline comet assay and genotyping was done using PCR-RFLP. The results revealed that the PONase activity toward paraoxonase and AChE activity was found significantly lowered in workers as compared to control subjects (p < 0.001). Workers showed significantly higher DNA damage compared to control subjects (14.37 {+-} 2.15 vs. 6.24 {+-} 1.37 tail% DNA, p < 0.001). Further, the workers with CYP2D6*3 PM and PON1 (QQ and MM) genotypes were found to have significantly higher DNA damage when compared to other genotypes (p < 0.05). In addition, significant increase in DNA damage was also observed in workers with concomitant presence of certain CYP2D6 and PON1 (Q192R and L55M) genotypes which need further extensive studies. In conclusion, the results indicate that the PON1 and CYP2D6 genotypes can modulate DNA damage elicited by some OPs possibly through gene-environment interactions. -- Highlights: Black-Right-Pointing-Pointer Role of CYP1A1, CYP3A5, CYP2C, CYP2D6 and PON1 genotypes on DNA damage. Black-Right-Pointing-Pointer Workers exposed to some OPs demonstrated increased DNA damage. Black-Right-Pointing-Pointer CYP2D6 *3 PM and PON1 (Q192R and L55M) genotypes are associated with DNA damage. Black-Right-Pointing-Pointer Concomitant presence of certain CYP2D6 and PON1 genotypes can increase DNA damage.

  8. 12/05/12 11:10Meteorieten uit Antarctica naar Belgi -HLN.be Page 1 of 3http://www.hln.be/hln/nl/961/Wetenschap/article/detail/1355091/2011/11/29/Meteorieten-uit-Antarctica-naar-Belgie.dhtml

    E-Print Network [OSTI]

    Claeys, Philippe

    Stakingsaanzegging treinbestuurders voor 22 mei Wilders: "Rutte slaat als een wildebras om zich heen" Droog maar

  9. One Packaging Technique of Exposed MEMS Sensors

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

    Gate drive Phase I Accomplishment -Modeling An inverter is interfaced with: * A large battery bank for energy storage. * An AC system. A Hawker Genesis battery (13Ah, 12V) and...

  10. Exterior Exposed Ductwork: Delivery Effectiveness and Efficiency*

    E-Print Network [OSTI]

    temperature environments, such as on a roof during cooling conditions, the supply air can experience%(with a supply side effectiveness of 78% and return effectiveness of 92%). This is due to the losses of 89% (with a supply side effectiveness of 90% and return effectiveness of 99%), reducing the average

  11. PENELOPE: Weaving Threads to Expose Atomicity Violations

    E-Print Network [OSTI]

    Parthasarathy, Madhusudan

    , our technique is to algorithmically mine from the execution a small set of alternate schedules prior specific permission and/or a fee. FSE-18, November 7­11, 2010, Santa Fe, New Mexico, USA and re-run for days together. This methodology is highly unsystematic and does not seem to exploit

  12. Facially exposed cones are not always nice

    E-Print Network [OSTI]

    2013-05-23T23:59:59.000Z

    May 23, 2013 ... A better understanding of the relation of facial exposedness and niceness may give ...... International Series in Operations Research & Manage-.

  13. One Packaging Technique of Exposed MEMS Sensors

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

    National Nuclear Security Administration, under contract DE-AC04-94AL85000. Acknowledgement Acknowledgement * This project is sponsored by the Energy Storage Program, U.S....

  14. Magnetic monopole field exposed by electrons

    E-Print Network [OSTI]

    Béché, A; Van Tendeloo, G; Verbeeck, J

    2013-01-01T23:59:59.000Z

    Magnetic monopoles have provided a rich field of study, leading to a wide area of research in particle physics, solid state physics, ultra-cold gases, superconductors, cosmology, and gauge theory. So far, no true magnetic monopoles were found experimentally. Using the Aharonov-Bohm effect, one of the central results of quantum physics, shows however, that an effective monopole field can be produced. Understanding the effects of such a monopole field on its surroundings is crucial to its observation and provides a better grasp of fundamental physical theory. We realize the diffraction of fast electrons at a magnetic monopole field generated by a nanoscopic magnetized ferromagnetic needle. Previous studies have been limited to theoretical semiclassical optical calculations of the motion of electrons in such a monopole field. Solid state systems like the recently studied 'spin ice' provide a constrained system to study similar fields, but make it impossible to separate the monopole from the material. Free space ...

  15. National Emission Standards for Hazardous Air Pollutants Calendar Year 2005

    SciTech Connect (OSTI)

    Bechtel Nevada

    2006-06-01T23:59:59.000Z

    The Nevada Test Site (NTS) is operated by the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO). From 1951 through 1992, the NTS was operated as the nation’s site for nuclear weapons testing. The release of man-made radionuclides from the NTS as a result of testing activities has been monitored since the first decade of atmospheric testing. After 1962, when nuclear tests were conducted only underground, the radiation exposure to the public surrounding the NTS was greatly reduced. After the 1992 moratorium on nuclear testing, radiation monitoring on the NTS focused on detecting airborne radionuclides that are resuspended into the air (e.g., by winds, dust-devils) along with historically-contaminated soils on the NTS. To protect the public from harmful levels of man-made radiation, the Clean Air Act, National Emission Standards for Hazardous Air Pollutants (NESHAP) (40 Code of Federal Regulations 61 Subpart H) limits the release of radioactivity from a U. S. Department of Energy (DOE) facility (e.g., the NTS) to 10 millirem per year (mrem/yr) effective dose equivalent (EDE) to any member of the public. This is the dose limit established for someone living off of the NTS for inhaling radioactive particles that may be carried by wind off of the NTS. This limit assumes that members of the public surrounding the NTS may also inhale “background levels” or radioactive particles unrelated to NTS activities that come from naturally-occurring elements in the environment (e.g., radon gas from the earth or natural building materials) or from other man-made sources (e.g., cigarette smoke). The U. S. Environmental Protection Agency (EPA) requires DOE facilities (e.g., the NTS) to demonstrate compliance with the NESHAP dose limit by annually estimating the dose to a hypothetical member of the public, referred to as the maximally exposed individual (MEI), or the member of the public who resides within an 80-kilometer (50-mile) radius of the facility who would experience the highest annual dose. This dose to a hypothetical person living close to the NTS cannot exceed 10 mrem/yr. C.1 This report has been produced annually for the EPA Region IX, and for the state of Nevada since 1992 and documents that the estimated EDE to the MEI has been, and continues to be, well below the NESHAP dose limit. The report format and level of technical detail has been dictated by the EPA and DOE Headquarters over the years. It is read and evaluated for NESHAP compliance by federal and state regulators. Each section and appendix presents technical information (e.g., NTS emission source estimates, onsite air sampling data, air transport model input parameters, dose calculation methodology, etc.), which supports the annual dose assessment conclusions. In 2005, as in all previous years for which this report has been produced, the estimated dose to the public from inhalation of radiological emissions from current and past NTS activities is shown to be well below the 10 mrem/yr dose limit. This was demonstrated by air sampling data collected onsite at each of six EPA-approved “critical receptor” stations on the NTS. The sum of measured EDEs from the four stations at the NTS boundaries is 2.5 mrem/yr. This dose is 25 percent of the allowed NESHAP dose limit. Because the nearest member of the public resides approximately 20 kilometers (12 miles) from the NTS boundary, this individual receives only a small fraction of this dose. NESHAP compliance does not require DOE facilities to estimate annual inhalation dose from non-DOE activities. Therefore, this report does not estimate public radiation doses from any other sources or activities (e.g., naturally-occurring radon, global fallout).

  16. 1e PERIODE 2e PERIODE 3e PERIODE 4e PERIODE Zomer maand Sept Okt Nov Dec Jan Feb Mrt Apr Mei Juni Juli/Aug

    E-Print Network [OSTI]

    . Contact: M.Bruggink@tudelft.nl Blackboard organization van SEC Je hebt je nog niet ingeschreven in de

  17. On Tuning the Microarchitecture of an HPS Implementation of the VAX James E. Wilson, Steve Melvin, Michael Shebanow, Wen-mei Hwu, and Yale N. Patt

    E-Print Network [OSTI]

    Melvin, Stephen

    On Tuning the Microarchitecture of an HPS Implementation of the VAX James E. Wilson, Steve Melvin into the use of HPS as a microarchitecture for the VAX. In this paper, we describe our first full simulation of the microVAX subset, and report the results of varying (i.e. tuning) certain important parameters. 1

  18. Adaptive Cache Management for Energy-efficient GPU Computing Xuhao Chen, Li-Wen Chang, Christopher I. Rodrigues, Jie Lv, Zhiying Wang and Wen-Mei Hwu

    E-Print Network [OSTI]

    Hwu, Wen-mei W.

    Adaptive Cache Management for Energy-efficient GPU Computing Xuhao Chen, Li-Wen Chang, Christopher hierarchy design, which limits system performance and energy-efficiency. The massive amount of memory throttling, respectively. Keywords-GPGPU; cache management; bypass; warp throt- tling I. INTRODUCTION Energy-efficiency

  19. Functional dissection of homeodomain transcription factors HoxA9 and Meis1 in myeloid leukemia : their epigenetic regulation and their downstream targets

    E-Print Network [OSTI]

    Wang, Gang

    2006-01-01T23:59:59.000Z

    inhibitors for the downstream mediator proteins such as FLT3regulation and their downstream targets A dissertationthe leukemia-associated downstream target genes underlines

  20. Special Analysis: Atmospheric Dose Resulting from the Release of C14 from Reactor Moderator Deionizers in a Disposal Environment

    SciTech Connect (OSTI)

    Hiergesell, Robert A.; Swingle, Robert F.

    2005-08-18T23:59:59.000Z

    The proposed action of disposing of 52 moderator deionizer vessels within the ILV was evaluated in this SA. In particular, a detailed analysis of the release of {sup 14}C via the atmospheric pathway was conducted for these vessels since the major concern has been the nearly 20 Ci of {sup 14}C that is associated with each vessel. The more rigorous evaluation of the atmospheric pathway for {sup 14}C included incorporation of new information about the chemical availability of {sup 14}C when disposed in a grout/cement encapsulation environment, as will be the case in the ILV. This information was utilized to establish the source term for a 1-D numerical model to simulate the diffusion of {sup 14}CO{sub 2} from the ILV Waste Zone to the land surface. The results indicate a peak surface emanation rate from the entire ILV of 1.42E-08 Ci/yr with an associated dose of only 3.83E-05 mrem/yr to the Maximally Exposed Individual (MEI) at 100m. The fact that the atmospheric pathway exposure for {sup 14}C is controlled by chemical solubility limits for {sup 14}C between the solid waste, pore water and pore vapor within the disposal environment rather than the absolute inventory suggests that the establishment of specific facility limits is inappropriate. With the relaxation of the atmospheric pathway restriction, the groundwater pathway becomes the more restrictive in terms of disposing {sup 14}C or {sup 14}C{sub KB} within the ILV. Since the resin-based {sup 14}C of the 52 moderator deionizer vessels is highly similar to the {sup 14}C{sub KB} waste form, the inventory from the 52 deionizer vessels is compared against the groundwater limits for that waste form. The small groundwater pathway fraction (1.14E-05) calculated for the proposed inventory of the 52 moderator deionizer vessels indicates that the proposed action will have an insignificant impact with respect to possible exposures via the groundwater pathway. This investigation recommends that there be no ILV Atmospheric pathway limit for {sup 14}C and {sup 14}C{sub KB}. Further, in the absence of an Atmospheric pathway limit it was determined that there are no other applicable ILV limits (Groundwater or Intruder pathway) that would be impacted in any significant fashion should the waste package be disposed within the ILV. Thus, it is concluded that the disposal of 52 moderator deionizer vessels can easily be accommodated within the ILV.

  1. Radioactive Air Emission Notice of Construction for (NOC) Plutonium Finishing Plant (PFP) Project W-460 Plutonium Stabilization and Handling

    SciTech Connect (OSTI)

    JANSKY, M.T.

    2000-03-01T23:59:59.000Z

    The following description and any attachments and references are provided to the Washington State Department of Health (WDOH), Division of Radiation Protection, Air Emissions & Defense Waste Section as a notice of construction (NOC) in accordance with Washington Administrative Code (WAC) 246-247, Radiation Protection-Air Emissions. The WAC 246-247-060, ''Applications, registration, and licensing'', states ''This section describes the information requirements for approval to construct, modify, and operate an emission unit. Any NOC requires the submittal of information listed in Appendix A,'' Appendix A (WAC 246-247-1 IO) lists the requirements that must be addressed. Additionally, the following description, attachments, and references are provided to the U.S. Environmental Protection Agency (EPA) as an NOC, in accordance with Title 40 Code of Federal Regulations (CFR), Part 61, ''National Emission Standards for Hazardous Air Pollutants.'' The information required for submittal to the EPA is specified in 40 CFR 61.07. The potential emissions from this activity are estimated to provide greater than 0.1 millirem year total effective dose equivalent (TEDE) to the hypothetical offsite maximally exposed individual (MEI) and commencement is needed within a short time. Therefore, this application also is intended to provide notification of the anticipated date of initial startup in accordance with the requirement listed in 40 CFR 61.09(a)(1), and it is requested that approval of this application also constitutes EPA acceptance of this initial startup notification. Written notification of the actual date of initial startup, in accordance with the requirement listed in 40 CFR 61.09(a)(2), will be provided later. This NOC covers the activities associated with the construction and operation activities involving stabilization and/or repackaging of plutonium in the 2736-ZB Building. An operations support trailer will be installed in the proximity of the 2736-ZB Building. A new exhaust stack will be built and operated at the 2736-ZB Building to handle the effluents associated with the operation of the stabilization and repackaging process. Figures provided are based on preliminary design.

  2. Notice of Construction for Tank Waste Remediation System Vadose Zone Characterization

    SciTech Connect (OSTI)

    HILL, J.S.

    2000-04-20T23:59:59.000Z

    The following description and any attachments and references are provided to the Washington State Department of Health (WDOH), Division of Radiation Protection, Air Emissions and Defense Waste Section as a notice of construction (NOC) in accordance with Washington Administrative Code (WAC) 246-247, Radiation Protection-Air Emissions. The WAC 246-247-060, ''Applications, registration, and licensing'', states ''This section describes the information requirements for approval to construct, modify, and operate an emission unit. Any NOC requires the submittal of information listed in Appendix A.'' Appendix A (WAC 246-247-1 10) lists the requirements that must be addressed. The original NOC was submitted in May of 1999 as DOm-99-34. Additionally, the following description, attachments and references are provided to the U.S. Environmental Protection Agency (EPA) as an NOC, in accordance with Title 40 Code of Federal Regulations (CFR), Part 61, ''National Emission Standards for Hazardous Air Pollutants.'' The information required for submittal to the EPA is specified in 40 CFR 61.07. The potential emissions from this activity are estimated to provide less than 0.1 milliredyear total effective dose equivalent (TEDE) to the hypothetical offsite maximally exposed individual (MEI), and commencement is needed within a short time frame. Therefore, this application is also intended to provide notification of the anticipated date of initial start-up in accordance with the requirement listed in 40 CFR 61.09(a)(1), and it is requested that approval of this application will also constitute EPA acceptance of this initial start-up notification. Written notification of the actual date of initial startup, in accordance with the requirement listed in 40 CFR 61.09(a)(2) will be provided at a later date. This NOC covers the activities associated with vadose zone characterization within the Single-Shell Tank Farms located in the 200-East and 200-West Areas of the Hanford Site. Vadose zone characterization activities include the drilling and sampling of soil from the surface to the depth of groundwater. Boreholes that are drilled to groundwater will be extended into the aquifer a sufficient distance to enable a groundwater sample to be collected. Under extenuating circumstances it may be prudent to complete these characterization boreholes as groundwater monitoring wells.

  3. Publications: Recurrence Relations Based on Minimization and Maximization (with

    E-Print Network [OSTI]

    Prasad, Sanjiva

    of approximating travelling salesman tours and minimum spanning trees, (with G. Das and M. Smid), Algorithmica and minimum spanning trees, 1996 (with G. Das and M. Smid), Proc. of FST & TCS, India, LNCS Springer Spanning Trees of Directed Graphs, (with H. Ramesh), to appear in Algorithmica. 1 #12; #15; EÃ?ciently

  4. Recommendations for Maximizing Battery Life in Photovoltaic Systems...

    Energy Savers [EERE]

    Testing Results DOE-HDBK-1084-95 SunShot Home About Concentrating Solar Power Photovoltaics Systems Integration Soft Costs Technology to Market Success Stories Financial...

  5. Maximizing the throughput of large ad hoc wireless networks

    E-Print Network [OSTI]

    Hua, Y; Huang, Y; Garcia-Luna-Aceves, J J

    2006-01-01T23:59:59.000Z

    multi-input, single-output (MISO) protocol. During eachthe maximum throughput of the MISO protocol, in bits-meters/s/ Hz/node, is C MISO = (n ? 1) A log 2 1 + 2n P T ? h

  6. New Mexico: Solar Glare Hazard Analysis Tool Maximizes Energy...

    Office of Environmental Management (EM)

    National Laboratories developed the Solar Glare Hazard Analysis Tool (SGHAT), a free Web-based tool that can quickly calculate potential visual hazards from proposed solar...

  7. Maximizing Combustion Efficiency Through Selection of Optimum CO Control Levels

    E-Print Network [OSTI]

    McGowan, G. F.; Ketchum, R. L.

    With the increased emphasis on improved combustion control and the availability of accurate and reliable multi-parameter combustion instrumentation, an analytical technique is needed to supplant the previous incomplete assumptions and misleading...

  8. Bandwidth utilization maximization of scientific RF communication systems

    SciTech Connect (OSTI)

    Rey, D. [Sandia National Lab., Albuquerque, NM (United States); Ryan, W. [New Mexico State Univ., Las Cruces, NM (United States); Ross, M.

    1997-01-01T23:59:59.000Z

    A method for more efficiently utilizing the frequency bandwidth allocated for data transmission is presented. Current space and range communication systems use modulation and coding schemes that transmit 0.5 to 1.0 bits per second per Hertz of radio frequency bandwidth. The goal in this LDRD project is to increase the bandwidth utilization by employing advanced digital communications techniques. This is done with little or no increase in the transmit power which is usually very limited on airborne systems. Teaming with New Mexico State University, an implementation of trellis coded modulation (TCM), a coding and modulation scheme pioneered by Ungerboeck, was developed for this application and simulated on a computer. TCM provides a means for reliably transmitting data while simultaneously increasing bandwidth efficiency. The penalty is increased receiver complexity. In particular, the trellis decoder requires high-speed, application-specific digital signal processing (DSP) chips. A system solution based on the QualComm Viterbi decoder and the Graychip DSP receiver chips is presented.

  9. A collision detection approach for maximizing the material utilization

    E-Print Network [OSTI]

    2014-09-16T23:59:59.000Z

    Sep 16, 2014 ... It has the shape of a standard nonlinear problem, yet, it needs some ...... tion or the use of the computational power of graphic cards may speed ...

  10. Maximizing Crosstalk-Induced Slowdown During Path Delay Test

    E-Print Network [OSTI]

    Gope, Dibakar

    2012-10-19T23:59:59.000Z

    in path delay for c5315 .................................................................... 57 Figure 11 Increase in path delay for c2670 .................................................................... 60 Figure 12 Increase in path delay for c... for critical paths considering single aggressor crosstalk effect with due consideration to the timing alignment and direction. This method has similar CPU efficiency to that of [17] and [18]. However, they did not take into account the possible impact...

  11. Optimizing potential energy functions for maximal intrinsic hyperpolarizability

    SciTech Connect (OSTI)

    Zhou Juefei; Szafruga, Urszula B.; Kuzyk, Mark G. [Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814 (United States); Watkins, David S. [Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814 (United States); Department of Mathematics, Washington State University, Pullman, Washington 99164-3113 (United States)

    2007-11-15T23:59:59.000Z

    We use numerical optimization to study the properties of (1) the class of one-dimensional potential energy functions and (2) systems of point nuclei in two dimensions that yield the largest intrinsic hyperpolarizabilities, which we find to be within 30% of the fundamental limit. In all cases, we use a one-electron model. It is found that a broad range of optimized potentials, each of very different character, yield the same intrinsic hyperpolarizability ceiling of 0.709. Furthermore, all optimized potential energy functions share common features such as (1) the value of the normalized transition dipole moment to the dominant state, which forces the hyperpolarizability to be dominated by only two excited states and (2) the energy ratio between the two dominant states. All optimized potentials are found to obey the three-level ansatz to within about 1%. Many of these potential energy functions may be implementable in multiple quantum well structures. The subset of potentials with undulations reaffirm that modulation of conjugation may be an approach for making better organic molecules, though there appear to be many others. Additionally, our results suggest that one-dimensional molecules may have larger diagonal intrinsic hyperpolarizability {beta}{sub xxx}{sup int} than higher-dimensional systems.

  12. Exergy Optimized Wastewater Heat Recovery: Minimizing Losses and Maximizing Performance 

    E-Print Network [OSTI]

    Meggers, F.

    2008-01-01T23:59:59.000Z

    output to minimize the temperature lift required by a heat pump. This would create an integrated low exergy space and water heating system. The project theory is a part of the IEA ECBCS Annex 49, and also collaboration has been setup with Geberit AG...

  13. Maximizing the value of education for university undergraduate research fellows 

    E-Print Network [OSTI]

    Tilley, Aaron Benjamin

    2013-02-22T23:59:59.000Z

    Educating and preparing the leaders of tomorrow for the challenges they will face is the most important job of teachers today. It is up to those who pass laws and make decisions regarding how this task will be carried out ...

  14. Spherical codes, maximal local packing density, and the golden ratio

    E-Print Network [OSTI]

    A. B. Hopkins; F. H. Stillinger; S. Torquato

    2010-03-18T23:59:59.000Z

    The densest local packing (DLP) problem in d-dimensional Euclidean space Rd involves the placement of N nonoverlapping spheres of unit diameter near an additional fixed unit-diameter sphere such that the greatest distance from the center of the fixed sphere to the centers of any of the N surrounding spheres is minimized. Solutions to the DLP problem are relevant to the realizability of pair correlation functions for packings of nonoverlapping spheres and might prove useful in improving upon the best known upper bounds on the maximum packing fraction of sphere packings in dimensions greater than three. The optimal spherical code problem in Rd involves the placement of the centers of N nonoverlapping spheres of unit diameter onto the surface of a sphere of radius R such that R is minimized. It is proved that in any dimension, all solutions between unity and the golden ratio to the optimal spherical code problem for N spheres are also solutions to the corresponding DLP problem. It follows that for any packing of nonoverlapping spheres of unit diameter, a spherical region of radius less than or equal to the golden ratio centered on an arbitrary sphere center cannot enclose a number of sphere centers greater than one more than the number that can be placed on the region's surface.

  15. Biophysics of Large Molecules Instructor: Maxim Frank-Kamenetskii

    E-Print Network [OSTI]

    Vajda, Sandor

    , graphene, polyethylene, polyacethylene, natural and arificial chromophores and fluorophores, proteins, DNA

  16. Exergy Optimized Wastewater Heat Recovery: Minimizing Losses and Maximizing Performance

    E-Print Network [OSTI]

    Meggers, F.

    Renewable Energies Laboratories (NREL). The data was produced from the engine based on daily usage profiles for showers, bathes, sinks, laundry, and dishwashers end-uses (Hendron, 2007). Random usage data was generated at 6-minute intervals for each end... Renewable Energies Laboratories (NREL). The data was produced from the engine based on daily usage profiles for showers, bathes, sinks, laundry, and dishwashers end-uses (Hendron, 2007). Random usage data was generated at 6-minute intervals for each end...

  17. EMSL Strategic Plan to Maximize Scientific Impact of the Radiochemistr...

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

    lagging indicators. In these cases, secondary metrics that are more leading or real-time indicators are also proposed to help manage performance against the primary metrics. ...

  18. Maximizing Efficiency of Solar-Powered Systems by Load Matching

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    energy. However, solar powered sys- tems must also consider the output level of the solar panel for power be counterproductive. Another problem that is of particular importance to solar pan- els is load matching. Solar panels is around 0.7­1.2, solar panels have a much larger Ri value as a function of the solar output and current

  19. Leveraging Intelligent Vehicle Technologies to Maximize Fuel Economy (Presentation)

    SciTech Connect (OSTI)

    Gonder, J.

    2011-11-01T23:59:59.000Z

    Advancements in vehicle electronics, along with communication and sensing technologies, have led to a growing number of intelligent vehicle applications. Example systems include those for advanced driver information, route planning and prediction, driver assistance, and crash avoidance. The National Renewable Energy Laboratory is exploring ways to leverage intelligent vehicle systems to achieve fuel savings. This presentation discusses several potential applications, such as providing intelligent feedback to drivers on specific ways to improve their driving efficiency, and using information about upcoming driving to optimize electrified vehicle control strategies for maximum energy efficiency and battery life. The talk also covers the potential of Advanced Driver Assistance Systems (ADAS) and related technologies to deliver significant fuel savings in addition to providing safety and convenience benefits.

  20. Periodic Levinson-Durbin algorithm for entropy maximization

    E-Print Network [OSTI]

    . This result holds in the multivariate case as well. Lambert-Lacroix [13] gen- eralised this result to pc applications, Serpedin et al [17] for a comprehensive bibliography, and Hin- drayanto et al [9] for state space Preprint submitted to Computational Statistics & Data Analysis April 15, 2011 #12;entropy solution

  1. Maximizing Combustion Efficiency Through Selection of Optimum CO Control Levels 

    E-Print Network [OSTI]

    McGowan, G. F.; Ketchum, R. L.

    1985-01-01T23:59:59.000Z

    , this condition is an exaggerated condition which is not realistic for most applications. In some cases, boiler controls may have to be cleaned up to provide the desired level of precision in actual fuel/air ratio. Other concerns often mentioned with regard... in the Chemical Process Industries. Reprint from ISA '81 PMCD; Instrumentation in Steam Turbines and Generators. 5) John Reason, When It Pays to Monitor Flue Gas CO, Power, August,? 1981. 6) J.P. Spanbauer, How Advanced Boiler Control Saves Energy. TAPPI...

  2. Maximizing a class of submodular utility functions with constraints

    E-Print Network [OSTI]

    2014-12-30T23:59:59.000Z

    Dec 30, 2014 ... School of Industrial & Systems Engineering, ...... disable multithreading, heuristics

  3. Maximal Lifetime Scheduling for Sensor Surveillance Systems with

    E-Print Network [OSTI]

    Jia, Xiaohua

    .Givenasetoftargetsandsensors and a base station (BS) in an area, the sensors are used to watch (or monitor) the targets and collect sensed

  4. Visibility maximization with unmanned aerial vehicles in complex environments

    E-Print Network [OSTI]

    Lee, Kenneth (Kenneth King Ho)

    2010-01-01T23:59:59.000Z

    Unmanned aerial vehicles are used extensively in persistent surveillance, search and track, border patrol, and environment monitoring applications. Each of these applications requires the obtainment of information using a ...

  5. Terrell L. Strayhorn, Ph.D. Maximizing First-Year

    E-Print Network [OSTI]

    Jones, Michelle

    are over 25 Their lived realities, then, include: Family responsibilities Work schedules Competing demands (and priorities) Financial pressures Oftentimes, commuting to campus Serious "choices" due.e., retention, attainment) and other trends: - Consistent national survey data suggested that students were

  6. Runtime Support For Maximizing Performance on Multicore Systems

    E-Print Network [OSTI]

    Pusukuri, Kishore Kumar

    2012-01-01T23:59:59.000Z

    SPEC OMP; SPEC JBB2005 ; kmeans and pca from Phoenix . TheOMP [11]; and five programs kmeans (KM), pca (PCA), matrix-

  7. EMSL Strategic Plan to Maximize Scientific Impact of

    E-Print Network [OSTI]

    problems, improved approaches for carbon capture and sequestration, efficient and large-scale biomass

  8. Waterflood control system for maximizing total oil recovery

    DOE Patents [OSTI]

    Patzek, Tadeusz Wiktor; Silin, Dimitriy Borisovic; De, Asoke Kumar

    2005-06-07T23:59:59.000Z

    A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed injection goal coupled with the historical times, pressures, and volume of injected fluid at a single well. In this control method, the historical data is used to derive two major flow components: the transitional component, where cumulative injection volume is scaled as the square root of time, and a steady-state breakthrough component, which scales linearly with respect to time. These components provide diagnostic information and allow for the prevention of rapid fracture growth and associated massive water break through that is an important part of a successful waterflood, thereby extending the life of both injection and associated production wells in waterflood secondary oil recovery operations.

  9. Online Data Gathering for Maximizing Network Lifetime in Sensor Networks

    E-Print Network [OSTI]

    Liang, Weifa

    database, sensornet query optimization. Ç 1 INTRODUCTION RECENT advances in microelectronic technology have, IEEE, and Yuzhen Liu Abstract--Energy-constrained sensor networks have been deployed widely sensors have significant power constraints (battery life), energy efficient methods must be employed

  10. Revenue Maximization Using Adaptive Resource Provisioning in Cloud Computing Environments

    E-Print Network [OSTI]

    Buyya, Rajkumar

    . For example, Amazon EC2 offers three types of compute services (i.e., on-demand, spot and reserved

  11. Maximizing the throughput of large ad hoc wireless networks

    E-Print Network [OSTI]

    Hua, Yingbo; Huang, Yi; J, Garcia-Luna-Aceves J

    2006-01-01T23:59:59.000Z

    The transport capacity of wireless networks over fadingimprovement of ad hoc wireless networks using directionalThe capacity of wireless networks,” IEEE Trans. Inform.

  12. Energy Minimization and Observability Maximization in Multi-Hop Wireless

    E-Print Network [OSTI]

    Boyer, Edmond

    , wildfires, air, soil or river pollution, sound or vibration monitoring ...) or complex industrial processes consider the main environmental issue of monitoring air pollution. Some approaches have been proposed backgrounds on air pollution modelling and monitoring. Section 3 is dedicated to the formulation

  13. Data Quality Maximization in Sensor Networks With a Mobile Sink

    E-Print Network [OSTI]

    Liang, Weifa

    faster than the others [3]. Such unbal- anced energy consumption among sensors will compromise}@cs.anu.edu.au Tim Wark Autonomous Systems Laboratory CSIRO ICT Centre Brisbane, Australia Tim.Wark@csiro.au Abstract nodes, allocate them to gateways subject to gateway quotas, and devise an energy-efficient routing

  14. Maximizing the value of education for university undergraduate research fellows

    E-Print Network [OSTI]

    Tilley, Aaron Benjamin

    2013-02-22T23:59:59.000Z

    . It is understood that funding is necessary, however the debate rages over how much and irom whom. In order to test the magnitude of funding's effects, it is integral to not examine a state's total funds. This wouid be ineffective since a larger state would... variables rates using five multivariate linear regressions. Education Fundin The primary goal of this research was to examine school funding. Funding for schools is one of the most politically charged subjects when brought up for debate...

  15. Maximizing Crosstalk-Induced Slowdown During Path Delay Test 

    E-Print Network [OSTI]

    Gope, Dibakar

    2012-10-19T23:59:59.000Z

    Capacitive crosstalk between adjacent signal wires in integrated circuits may lead to noise or a speedup or slowdown in signal transitions. These in turn may lead to circuit failure or reduced operating speed. This thesis ...

  16. EMSL Strategic Plan to Maximize Scientific Impact of the Quiet...

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

    science areas as well, including the design and performance optimization of catalysts for biofuel production and energy storage materials. 2.1 Contributions to Atmospheric Aerosol...

  17. Regular graphs maximize the variability of random neural networks

    E-Print Network [OSTI]

    Gilles Wainrib; Mathieu Galtier

    2014-12-17T23:59:59.000Z

    In this work we study the dynamics of systems composed of numerous interacting elements interconnected through a random weighted directed graph, such as models of random neural networks. We develop an original theoretical approach based on a combination of a classical mean-field theory originally developed in the context of dynamical spin-glass models, and the heterogeneous mean-field theory developed to study epidemic propagation on graphs. Our main result is that, surprisingly, increasing the variance of the in-degree distribution does not result in a more variable dynamical behavior, but on the contrary that the most variable behaviors are obtained in the regular graph setting. We further study how the dynamical complexity of the attractors is influenced by the statistical properties of the in-degree distribution.

  18. Efficient buffer design algorithms for production line profit maximization

    E-Print Network [OSTI]

    Shi, Chuan, Ph. D. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    A production line is a manufacturing system where machines are connected in series and separated by buffers. The inclusion of buffers increases the average production rate of the line by limiting the propagation of ...

  19. Charge-order-maximized momentum-dependent superconductivity

    E-Print Network [OSTI]

    Loss, Daniel

    and Technology, Okayama University, Okayama, Okayama 700-8530, Japan 4 Institute for Plasma Research, Bhat

  20. Orthogonal Forward Regression based on Directly Maximizing Model Generalization Capability

    E-Print Network [OSTI]

    Chen, Sheng

    for costly model evaluation. Index Terms -- orthogonal forward regression, structure identification, cross struc- ture construction process as a cost function in order to op- timize the model generalization introduces a construction algorithm for sparse kernel modelling using the leave-one-out test score also known

  1. Cryogenic expander/recompressor control for maximizing liquids production

    SciTech Connect (OSTI)

    Batson, B.W.

    1999-07-01T23:59:59.000Z

    In this paper a new method is described to control cryogenic expander/recompressor units to improve natural gas liquid production. This method employs the antisurge valve associated with the recompressor to load the expander without increasing the flow through it. This method can be applied to continuous control or speed limiting control. A crucial aspect of this method of control is the interaction of the two control loops--expander inlet nozzle control and antisurge valve control. These loops are highly coupled, requiring loop decoupling to assure stable control.

  2. Processor Shadowing: Maximizing Expected Throughput in Fault-Tolerant Systems

    E-Print Network [OSTI]

    Coffman Jr., E. G.

    such losses in accrued running time when at least two processors are available, itcan be decided at any time, then the job must be restarted from the beginning. In order not to risk the loss of running time accumulated running time is to be run on a finite set of processors; each processor is subject to failure but only

  3. THE HOCHSCHILD COHOMOLOGY RING OF REGULAR MAXIMAL PRIMITIVE QUOTIENTS OF

    E-Print Network [OSTI]

    Soergel, Wolfgang

    -algebra A we mean just the ring HHo(A) = Ext oA Aopp(A, A) of self-extensions of A considered as an A k Aopp

  4. California: SunShot-Supported Technology Maximizes Taxpayer's...

    Energy Savers [EERE]

    (SETO) focuses on achieving the goals of the SunShot Initiative, which seeks to make solar energy cost-competitive with other forms of electricity by the end of the decade....

  5. Liquidus temperature limited waste loading maximization for vitrified HLW

    SciTech Connect (OSTI)

    Hrma, P.; Vienna, J.D.; Schweiger, M.J. [Pacific Northwest National Lab., Richland, WA (United States)

    1996-12-31T23:59:59.000Z

    Liquidus temperature often limits the loading of vitrified high-level waste in the glass. For spinel primary crystallization phase, the maximum achievable waste loading is determined analytically using first-order models, and then calculated for a Hanford nominal blend waste. The results show that the glass volume can be reduced if the glass melting temperature is not constrained and no restrictions are imposed on minimum B{sub 2}O{sub 3} and U{sub 2}O concentrations in the glass.

  6. COMPUTING MAXIMAL SUBGROUPS AND WYCKOFF POSITIONS OF SPACE GROUPS

    E-Print Network [OSTI]

    Gähler, Franz

    of GAP also contains the complete list of all 3­ and 4­dimensional space groups, as well as the lists of any given space group, independently of its dimension. In practice, their efficiency is good enough in the computational group theory system GAP and use existing standard functions of GAP as well as some simple

  7. EMSL Strategic Plan to Maximize Scientific Impact of HRMAC

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

    rapid and cost-effective resolution of environmental problems, improved approaches for carbon capture and sequestration, efficient and large-scale biomass conversion processes,...

  8. Profit Maximizing Mechanisms for the Extended Multicasting Game1

    E-Print Network [OSTI]

    of selected nodes minus the sum of values of selected edges (this is the efficiency/surplus of the solution

  9. How do we move forward? Maximize impact of available

    E-Print Network [OSTI]

    Minnesota, University of

    and sustainable investment. #12;CIMS Objectives · Given the funding reality, advance cost effective strategies to regional & local priorities · Greater transparency and collaboration in MnDOT's investment planning for information exchanges and coordination · An opportunity to collaborate around lower cost, high benefit

  10. Unitizing worker expertise and maximizing the brain reward centers

    SciTech Connect (OSTI)

    Martinez, Anthony Bert [Los Alamos National Laboratory

    2010-01-01T23:59:59.000Z

    People are experts when it comes to the work they do; unfortunately their expertise is not utilized as frequently as it could be. More opportunities need to be provided that allow people to participate in the design of their work including: accident investigations, job planning, and process improvements. Many employers use some form of job hazard analysis process to identify and document hazards and controls, but the front line worker is rarely involved. This presentation will show the core principles supporting employee involvement, provide examples where workers had brilliant ideas but no one listened, and provide examples where workers were given the opportunity to use their expertise to improve occupational safety. According to Abraham Maslow's Hierarch of Needs model, one essential human need is to be innovative and solve problems. Advances in brain science have proven, through functional magnetic resonance imaging (fMRI) studies, the brain reward pathway is activated when people are recognized for their intellectual contributions. As people contribute their expertise to improve occupational safety more frequently they will feel a sense of gratification. In addition, safety professionals will have more time to spend on strategic planning of emerging occupational safety issues. One effect of the current global recession is that SH&E professionals are asked to do more with less. Therefore, to be successful it is essential that SH&E professionals incorporate worker expertise in job planning. This will be illustrated in the presentation through an example where a worker had the answer to a difficult decision on appropriate personal protective equipment for a job but no one asked the worker for his idea during the job planning phase. Fortunately the worker was eventually consulted and his recommendation for the appropriate personal protective equipment for the job was implemented before work began. The goal of this presentation is to expand the awareness and knowledge of SH&E professionals on the benefits and opportunities for leveraging brain science. This will include an overview of the components of the brain reward pathway and the biological mechanisms that make workers feel a sense of gratification when they contribute their ideas toward improving occupational safety. On-the-job examples where it is hypothesized that the brain reward pathway was activated in workers will be provided. Finally, the presentation will include a model illustrating the importance of empowering workers to participate in occupational safety programs. SH&E professionals can use this model to maintain a robust safety and health program with limited resources. The model will also help SH&E professionals prepare for challenges in the SH&E fields by showing them how to allocate more time for strategic planning of emerging issues. Many recent best selling business books such as Wikinomics, Crowdsourcing, and Sway, illustrate how the benefit of harnessing the collective knowledge of employees is a key to company success. Companies like Google and Pixar have mastered the ability to capture empFoyee knowledge in terms of technology. Why should occupational safety be any different? Workers know how to improve safety in their workplace. SH&E professionals can harness this collective safety knowledge just as top companies do with technology, and workers will feel grateful for contributing.

  11. Optimization Online - On the complexity of maximizing the minimum ...

    E-Print Network [OSTI]

    Mikael Fallgren

    2010-01-18T23:59:59.000Z

    Jan 18, 2010 ... Citation: Report number: TRITA 8, Address: Department of Mathematics, Royal Institute of Technology, SE-100 44 Stockholm, Sweden, ...

  12. Finite state automata resulting from temporal information maximization

    E-Print Network [OSTI]

    Wennekers, Thomas

    ,2,3 and Nihat Ay3,4,5 1 Centre for Theoretical and Computational Neuroscience University of Plymouth, Plymouth

  13. Quasi-Dense Reconstruction from Image Maxime LHUILLIER Long QUAN

    E-Print Network [OSTI]

    Quan, Long

    Science Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong SAR Abstract. This paper proposes a quasi-dense reconstruction from un- calibrated sequence. The main innovation calibration or position information. Unfortunately, most modeling and visualization applications need dense

  14. Runtime Support For Maximizing Performance on Multicore Systems

    E-Print Network [OSTI]

    Pusukuri, Kishore Kumar

    2012-01-01T23:59:59.000Z

    execution techniques for smt mul- tiprocessor architectures,scheduling on smp-cmp-smt multiprocessors, in Proceedings ofcode for quad-core SMT multiprocessor architectures. The

  15. Maximal Covering Location Problems on networks with regional ...

    E-Print Network [OSTI]

    2014-09-18T23:59:59.000Z

    variables yf and za to indicate respectively whether a facility at f is open, and whether a ..... some i ? {1,...,p}, ei = (ai,bi) such that one of the following conditions.

  16. Study of maximizing acoustic energy coupling to salt

    E-Print Network [OSTI]

    Hwang, Yng-Jou

    1979-01-01T23:59:59.000Z

    CHAPTER I INTRODUCTION Statement of the Problem The knowledge of the geologic discontinuities in the salt which lie in front of a mining face is a great value for both economic and safety reasons. This knowledge can be obtained by core drilling... at the transducer/ coupling media and coupling media/salt boundaries can be considered as being separate and mutually independent. The coupling problem would then be treated by evaluating the normal incidence reflection coefficients at the transducer/ coupling...

  17. Waterflood control system for maximizing total oil recovery

    DOE Patents [OSTI]

    Patzek, Tadeusz Wiktor (Oakland, CA); Silin, Dimitriy Borisovich (Pleasant Hill, CA); De, Asoke Kumar (San Jose, CA)

    2007-07-24T23:59:59.000Z

    A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed injection goal coupled with the historical times, pressures, and volume of injected fluid at a single well. In this control method, the historical data is used to derive two major flow components: the transitional component, where cumulative injection volume is scaled as the square root of time, and a steady-state breakthrough component, which scales linearly with respect to time. These components provide diagnostic information and allow for the prevention of rapid fracture growth and associated massive water break through that is an important part of a successful waterflood, thereby extending the life of both injection and associated production wells in waterflood secondary oil recovery operations.

  18. Maximizing the life cycle of plastics. Final report

    SciTech Connect (OSTI)

    Hawkins, W. L.

    1980-02-01T23:59:59.000Z

    The Plastics Research Institute has conducted a coordinated research program designed to extend the useful life of plastics. Since feedstock for practically all synthetic plastics is derived from fossil fuel, every effort should be made to obtain the maximum useful life from these materials. Eventually, plastic scrap may be used as a fuel supplement, but this disposal route should be followed only after the scrap is no longer reusable in its polymeric form. The extent to which plastic scrap will be recovered and reused will be affected by the economic situation as well as the available supply of fossil fuel. The Institute's program was conducted at five major universities. Dedicated faculty members were assembled into a research team and met frequently with members of the Institute's Board of Trustees to review progress of the program. The research was conducted by graduate students in partial fulfillment of degree requirements. Summaries are presented of the following research projects: Improved Stabilization; Separation of Mixed Plastic Scrap; Compatibilizing Agents for Mixed Plastic Scrap; Controlled Degradation of Plastic Scrap; and Determination of Compatibility.

  19. Dynamic programming applied to maximizing traffic flow in parallel systems

    E-Print Network [OSTI]

    Anderson, Gerald Lee

    1967-01-01T23:59:59.000Z

    Solution of the problem The Triple-Route Model 33 CHAPTER I INTRODUCTION The control of traffic flow and congestion in freeway systems is a matter of increasing importance at a time when it. has become evident that it is impossible to construct... enough urban highway- to satisfy all of the traffic demand. It is necessary to seek ways to make more efficient u. e of existing freeways. Nattleworth (1, 2) and others (3, 4, 5, 6) have discussed various aspects of the control of freeway systems...

  20. Biologically engineering nanostructures to maximize energy, electron, and ion transport

    E-Print Network [OSTI]

    Park, Heechul

    2014-01-01T23:59:59.000Z

    Human intellectual desire inspires recent research to expand to interdisciplinary areas across biology, chemistry, and physics. Interdisciplinary research in unexplored areas is challenging, but holds great promise to ...