Sample records for age square footage

  1. Y-12 Lease Summary Address* (Description) Square Footage Lease...

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

    Y-12 Lease Summary Address* (Description) Square Footage Lease Term Expiration Date Onsite Leases 602 Scarboro Rd (New Hope Center) 137,758 square feet Five years 05042012 301...

  2. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    "Not in metropolitan or micropolitan" "statistical area",26.2,4.1,4.7,23.8,7.3,7.2,24.3 "Climate Region4" "Very ColdCold",3.7,2.9,2.8,4.8,3.3,3.3,4.3 "Mixed-Humid",5.7,2,2,4,3.2,...

  3. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    in metropolitan or micropolitan" "statistical area",36.3,7.6,8.2,37.4,13.5,12.1,21.2 "Climate Region4" "Very ColdCold",4.4,1.9,1.9,4,2.1,2.4,5.2 "Mixed-Humid",7.1,4.4,3.9,4.7,...

  4. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    "Not in metropolitan or micropolitan" "statistical area",22,3.3,2.8,5.4,3.4,2.9,5.3 "Climate Region4" "Very ColdCold",109,1.5,1.2,1,1.4,1.4,2.2 "Mixed-Humid",4.1,2.1,2.5,3.2,...

  5. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    "Not in metropolitan or micropolitan" "statistical area",14.8,3.4,3.3,6.1,3.9,3.5,5.6 "Climate Region4" "Very ColdCold",2.6,1.6,1.7,2.6,2,2.1,2.9 "Mixed-Humid",3.4,1.8,1.9,2.4,...

  6. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    "Not in metropolitan or micropolitan" "statistical area",14.3,3.3,3.2,5.5,4.2,3.9,5.4 "Climate Region4" "Very ColdCold",2.7,1.6,1.8,2.8,2,2.2,3.1 "Mixed-Humid",3.9,1.9,2.1,2.5,...

  7. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    "Not in metropolitan or micropolitan" "statistical area",27.1,5.5,5.4,9.8,9.5,9.2,13.6 "Climate Region4" "Very ColdCold",3,2.4,2.6,3.5,2.8,3,3.8 "Mixed-Humid",11,3.7,3.5,4.3,3.9...

  8. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    in metropolitan or micropolitan" "statistical area",33.1,20.9,20.6,69.5,11.4,10.9,52.9 "Climate Region4" "Very ColdCold",9.4,4.6,4.5,7.1,7,7.1,7.7 "Mixed-Humid",0,0,0,0,0,0,0...

  9. ,"Housing Units1","Average Square Footage Per Housing Unit",...

    U.S. Energy Information Administration (EIA) Indexed Site

    "Not in metropolitan or micropolitan" "statistical area",26.5,7.2,6.5,19.8,6.8,6.1,20.5 "Climate Region4" "Very ColdCold",11.7,4.1,4.2,17.5,6.6,6.6,19.5 "Mixed-Humid",11.4,4.1,4,...

  10. Table 1a. Effective, Occupied, and Vacant Square Footage, 1992

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial ConsumersThousandCubic Feet) DecadeV49 155 181 1773 January 1993

  11. BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010...

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

    40' - June 3 2010 (1 of 4) BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010 (1 of 4) Addthis Description Footage of the BP Oil Spill Duration 0:15...

  12. BP Oil Spill Footage (High Def) - Top Hat Procedure at 4850'...

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

    Top Hat Procedure at 4850' - June 3 2010 (4 of 4) BP Oil Spill Footage (High Def) - Top Hat Procedure at 4850' - June 3 2010 (4 of 4) Addthis Description Footage of the BP Oil...

  13. BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010...

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

    3 of 4) BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (3 of 4) Addthis Description Footage of the BP Oil Spill Duration 0:19...

  14. BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010...

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

    2 of 4) BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (2 of 4) Addthis Description Footage of the BP Oil Spill Duration 0:13...

  15. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o J0

  16. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o J01

  17. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o J012

  18. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o

  19. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o4

  20. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o45

  1. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o456

  2. ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home8* j o n p o4569

  3. Footage Drilled for Crude Oil and Natural Gas Wells

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for On-Highway4,1,50022,3,,,,6,1,9,1,50022,3,,,,6,1,Decade Year-0 Year-1InformationDieselAnnualFORMPageValuesFootage Drilled for

  4. Effective Occupied and Vacant Square Footage in Commercial Buildigs in 1992

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at1,066,688 760,877SouthwestWisconsinStatement 1Decade

  5. The orbit of the Chelyabinsk event impactor as reconstructed from amateur and public footage

    E-Print Network [OSTI]

    Zuluaga, Jorge I; Geens, Stefan

    2013-01-01T23:59:59.000Z

    A ballistic reconstruction of a meteoroid orbit can be made if enough information is available about its trajectory inside the atmosphere. A few methods have been devised in the past and used in several cases to trace back the origin of small impactors. On February 15, 2013, a medium-sized meteoroid hit the atmosphere in the Chelyabinsk region of Russia, causing damage in several large cities. The incident, the largest registered since the Tunguska event, was witnessed by many thousands and recorded by hundreds of amateur and public video recording systems. The amount and quality of the information gathered by those systems is sufficient to attempt a reconstruction of the trajectory of the impactor body in the atmosphere, and from this the orbit of the body with respect to the Sun. Using amateur and public footage taken in four different places close to the event, we have determined precisely the properties of the entrance trajectory and the orbit of the Chelyabinsk event impactor. We found that the object en...

  6. Do it yourself lighting power survey: lighting power audit for use with the Massachusetts type watts per square foot method of calculating a building's lighting power budget

    SciTech Connect (OSTI)

    Not Available

    1980-06-01T23:59:59.000Z

    Advantages of the self-audit approach to energy conservation are presented. These are that it is cheaper to do it yourself; the employees become part of the corporate conservation effect; and no one knows the building and its needs better than the occupant. Steps described in the lighting survey procedure are: (1) divide the building into categories; (2) determine the total square footage for each category; (3) assign a power allowance for each category; (4) multiply the total square footage for each category by the respective power allowances; (5) add the budget sub-totals for each category to determine total building budget; and (6) walk through the building room-by-room and calculate the connected lighting load fixture-by-fixture. Some worksheets are provided. (MCW)

  7. 851 S.W. Sixth Avenue, Suite 1100 Steve Crow 503-222-5161 Portland, Oregon 97204-1348 Executive Director 800-452-5161

    E-Print Network [OSTI]

    ( Single, Multi, Manuf.) ­­ Square footage of existing commercial buildingsSquare footage of existing commercial buildings ­­ Square footage of new commercial buildingsSquare footage of new commercial buildings. This includes estimating the number of buildings and the amount of electricity using equipment that can

  8. Copley Square : realizing its full potential

    E-Print Network [OSTI]

    Haque, Reaz

    1984-01-01T23:59:59.000Z

    The objective of this study is to form a basis for realizing the full potential of Copley Square, and also to establish an approach to the issues of preservation and revitalization of historic urban squares. The objective ...

  9. An algorithm for recognising the exterior square of a matrix Keywords: matrix, exterior square, algorithm

    E-Print Network [OSTI]

    Greenhill, Catherine

    vector space, with respect to a canonical basis, is called the exterior square of X. Note that all vectorAn algorithm for recognising the exterior square of a matrix Keywords: matrix, exterior square the exterior square of a matrix. The approach involves manipulation of the equations which relate the entries

  10. B-Roll Footage | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 Russian NuclearandJune 17,Agenda Agenda Agenda425,15,September 29,TheofInsulatedB

  11. Asymptotics for GARCH Squared Residual Correlations

    E-Print Network [OSTI]

    Kokoszka, Piotr

    Asymptotics for GARCH Squared Residual Correlations Istv'an Berkes \\Lambda A. R'enyi Institute a GARCH(p; q) model. Denoting by ?? r n (k); k ?? 1; these autocorrelations computed from a realization words and phrases: GARCH(p; q) sequence, quasi--maximum likelihood esti­ mator, squared residuals

  12. Policy Iteration / Optimistic Policy Iteration Least-Squares Policy Iteration Experiments Least Squares Policy Iteration

    E-Print Network [OSTI]

    Scherrer, Bruno

    Policy Iteration / Optimistic Policy Iteration Least-Squares Policy Iteration Experiments Least Squares Policy Iteration Bias-Variance Trade-o in Control Problems Christophe Thiéry and Bruno Scherrer/27 #12; Policy Iteration / Optimistic Policy Iteration Least-Squares Policy Iteration Experiments Markov

  13. Elmo bumpy square plasma confinement device

    DOE Patents [OSTI]

    Owen, L.W.

    1985-01-01T23:59:59.000Z

    The invention is an Elmo bumpy type plasma confinement device having a polygonal configuration of closed magnet field lines for improved plasma confinement. In the preferred embodiment, the device is of a square configuration which is referred to as an Elmo bumpy square (EBS). The EBS is formed by four linear magnetic mirror sections each comprising a plurality of axisymmetric assemblies connected in series and linked by 90/sup 0/ sections of a high magnetic field toroidal solenoid type field generating coils. These coils provide corner confinement with a minimum of radial dispersion of the confined plasma to minimize the detrimental effects of the toroidal curvature of the magnetic field. Each corner is formed by a plurality of circular or elliptical coils aligned about the corner radius to provide maximum continuity in the closing of the magnetic field lines about the square configuration confining the plasma within a vacuum vessel located within the various coils forming the square configuration confinement geometry.

  14. Quantum Latin squares and unitary error bases

    E-Print Network [OSTI]

    Benjamin Musto; Jamie Vicary

    2015-04-10T23:59:59.000Z

    In this paper we introduce quantum Latin squares, combinatorial quantum objects which generalize classical Latin squares, and investigate their applications in quantum computer science. Our main results are on applications to unitary error bases (UEBs), basic structures in quantum information which lie at the heart of procedures such as teleportation, dense coding and error correction. We present a new method for constructing a UEB from a quantum Latin square equipped with extra data. Developing construction techniques for UEBs has been a major activity in quantum computation, with three primary methods proposed: shift-and-multiply, Hadamard, and algebraic. We show that our new approach simultaneously generalizes the shift-and-multiply and Hadamard methods. Furthermore, we explicitly construct a UEB using our technique which we prove cannot be obtained from any of these existing methods.

  15. The Group of symmetries of a square There are eight symmetries of a square

    E-Print Network [OSTI]

    Smith, Karen E.

    The Group of symmetries of a square There are eight symmetries of a square: e = no motion r1) a product of two of its subgroups? 5. How many different (non-isomorphic) groups of order eight can you) a = reflection over anti-diagonal (the line y = -x) Complete the Cayley Table for the dihedral group D4: e r1 r2

  16. Toward a Unique UnderstandingToward a Unique Understanding Washington SquareWashington Square

    E-Print Network [OSTI]

    Hung, I-Kuai

    ;LagniappeLagniappe 1837 Map of Nacogdoches1837 Map of Nacogdoches 1846 Map of Nacogdoches1846 Map #12;The Sanborn MapsThe Sanborn Maps #12;Georeferenced RepresentationGeoreferenced Representation #12 excavations atbelow from the 1979 excavations at Washington Square.Washington Square. #12;The GridThe Grid #12

  17. ROBOT CALIBRATION USING LEAST-SQUARES AND

    E-Print Network [OSTI]

    Flanagan, Randy

    ROBOT CALIBRATION USING LEAST-SQUARES AND P OLAR-DEC OMP O SITION FILTERING Gregory Ioannldes 1 This paper reports the experimental results of a novel method to calibrate geometric errors of multi of the Yaskawa Motoman Robot was calibrated. The measurements of the Cartesian coordinates of points were

  18. SAN JOSE STATE UNIVERSITY ONE WASHINGTON SQUARE

    E-Print Network [OSTI]

    Gleixner, Stacy

    Public Safety Funding). RESOLVED That the San José State University (SJSU) commend the CSU BoardSAN JOSE STATE UNIVERSITY ONE WASHINGTON SQUARE SAN JOSE, CA 95192 SS-F12-2, Sense of the Senate Resolution, Urging that California Voters Become Well Informed About the Current State of Funding

  19. Robust Least Square Semidefinite Programming with Applications

    E-Print Network [OSTI]

    2013-07-14T23:59:59.000Z

    Jul 13, 2013 ... In this paper, we consider a least square semidefinite programming problem .... and handling uncertainty, and has natural statistical interpretation. On .... of the paper, we use B(X, r) ? Sn to denote the closed ball centered at X...

  20. David Hume Tower George Square, Edinburgh

    E-Print Network [OSTI]

    Edinburgh, University of

    David Hume Tower George Square, Edinburgh EH8 9JX 0131 650 8295 http://www.ed.ac.uk/maps THE UNIVERSITY OF EDINBURGH DAVID HUME TOWER A GUIDE TO ACCESS AND FACILITIES #12;If you require this document the evacuation arrangements". #12;Disabled Access Guide for David Hume Tower Introduction DAVID HUME TOWER

  1. INVERSE-SQUARE LAW TESTS 1 TESTS OF THE GRAVITATIONAL

    E-Print Network [OSTI]

    Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

    INVERSE-SQUARE LAW TESTS 1 TESTS OF THE GRAVITATIONAL INVERSE-SQUARE LAW E.G.Adelberger, B-1560 KEYWORDS: gravitation, experimental tests of inverse-square law, quantum gravity, extra dimensions ABSTRACT: We review recent experimental tests of the gravitational inverse-square law, and the wide variety

  2. Hybrid least squares multivariate spectral analysis methods

    DOE Patents [OSTI]

    Haaland, David M. (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    A set of hybrid least squares multivariate spectral analysis methods in which spectral shapes of components or effects not present in the original calibration step are added in a following estimation or calibration step to improve the accuracy of the estimation of the amount of the original components in the sampled mixture. The "hybrid" method herein means a combination of an initial classical least squares analysis calibration step with subsequent analysis by an inverse multivariate analysis method. A "spectral shape" herein means normally the spectral shape of a non-calibrated chemical component in the sample mixture but can also mean the spectral shapes of other sources of spectral variation, including temperature drift, shifts between spectrometers, spectrometer drift, etc. The "shape" can be continuous, discontinuous, or even discrete points illustrative of the particular effect.

  3. The Spanish Square Kilometre Array White Book

    E-Print Network [OSTI]

    Pulido, J A Acosta; Alberdi, A; Alcolea, J; Alfaro, E J; Alonso-Herrero, A; Anglada, G; Arnalte-Mur, P; Ascasibar, Y; Ascaso, B; Azulay, R; Bachiller, R; Baez-Rubio, A; Battaner, E; Blasco, J; Brook, C B; Bujarrabal, V; Busquet, G; Caballero-Garcia, M D; Carrasco-Gonzalez, C; Casares, J; Castro-Tirado, A J; Colina, L; Colomer, F; de Gregorio-Monsalvo, I; del Olmo, A; Desmurs, J-F; Diego, J M; Dominguez-Tenreiro, R; Estalella, R; Fernandez-Soto, A; Florido, E; Font, J; Font, J A; Fuente, A; Garcia-Burillo, S; Garcia-Benito, R; Garcia-Lorenzo, B; de Paz, A Gil; Girart, J M; Goicoechea, J R; Gomez, J F; Gonzalez-Garcia, M; Gonzalez-Martin, O; Gonzalez-Serrano, J I; Gorgas, J; Gorosabel, J; Guijarro, A; Guirado, J C; Hernandez-Garcia, L; Hernandez-Monteagudo, C; Herranz, D; Herrero-Illana, R; Hu, Y-D; Huelamo, N; Huertas-Company, M; Iglesias-Paramo, J; Jeong, S; Jimenez-Serra, I; Knapen, J H; Lineros, R A; Lisenfeld, U; Marcaide, J M; Marquez, I; Marti, J; Marti, J M; Martinez-Gonzalez, E; Martin-Pintado, J; Marti-Vidal, I; Masegosa, J; Mayen-Gijon, J M; Mezcua, M; Mimica, S/ Migliari P; Moldon, J; Morata, O; Negueruela, I; Oates, S R; Osorio, M; Palau, A; Paredes, J M; Perea, J; Perez-Gonzalez, P G; Perez-Montero, E; Perez-Torres, M A; Perucho, M; Planelles, S; Pons, J A; Prieto, A; Quilis, V; Ramirez-Moreta, P; Almeida, C Ramos; Rea, N; Ribo, M; Rioja, M J; Espinosa, J M Rodriguez; Ros, E; Rubio-Martin, J A; Ruiz-Granados, B; Sabater, J; Sanchez, M A P; Usero, A; Verdes-Montenegro, L; Vidal-Garcia, A; Vielva, P; Vilchez, J; Zhang, B-B

    2015-01-01T23:59:59.000Z

    The Square Kilometre Array (SKA) is called to revolutionise essentially all areas of Astrophysics. With a collecting area of about a square kilometre, the SKA will be a transformational instrument, and its scientific potential will go beyond the interests of astronomers. Its technological challenges and huge cost requires a multinational effort, and Europe has recognised this by putting the SKA on the roadmap of the European Strategy Forum for Research Infrastructures (ESFRI). The Spanish SKA White Book is the result of the coordinated effort of 119 astronomers from 40 different research centers. The book shows the enormous scientific interest of the Spanish astronomical community in the SKA and warrants an optimum scientific exploitation of the SKA by Spanish researchers, if Spain enters the SKA project.

  4. Square Engineering Pvt Ltd | 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 directedAnnualProperty Edit with formSoutheastern IL Elec Coop, IncSouthwesternSparkSpringSquare Engineering

  5. 1Machine Learning, to appear. Least-Squares Independence Regression

    E-Print Network [OSTI]

    Sugiyama, Masashi

    1Machine Learning, to appear. Least-Squares Independence Regression for Non-Linear Causal Inference of Technology, Japan. sesejun@cs.titech.ac.jp Abstract The discovery of non-linear causal relationship under Causal inference, Non-Linear, Non-Gaussian, Squared-loss mutual information, Least-Squares Independence

  6. Augmented Classical Least Squares Multivariate Spectral Analysis

    DOE Patents [OSTI]

    Haaland, David M. (Albuquerque, NM); Melgaard, David K. (Albuquerque, NM)

    2005-07-26T23:59:59.000Z

    A method of multivariate spectral analysis, termed augmented classical least squares (ACLS), provides an improved CLS calibration model when unmodeled sources of spectral variation are contained in a calibration sample set. The ACLS methods use information derived from component or spectral residuals during the CLS calibration to provide an improved calibration-augmented CLS model. The ACLS methods are based on CLS so that they retain the qualitative benefits of CLS, yet they have the flexibility of PLS and other hybrid techniques in that they can define a prediction model even with unmodeled sources of spectral variation that are not explicitly included in the calibration model. The unmodeled sources of spectral variation may be unknown constituents, constituents with unknown concentrations, nonlinear responses, non-uniform and correlated errors, or other sources of spectral variation that are present in the calibration sample spectra. Also, since the various ACLS methods are based on CLS, they can incorporate the new prediction-augmented CLS (PACLS) method of updating the prediction model for new sources of spectral variation contained in the prediction sample set without having to return to the calibration process. The ACLS methods can also be applied to alternating least squares models. The ACLS methods can be applied to all types of multivariate data.

  7. Augmented Classical Least Squares Multivariate Spectral Analysis

    DOE Patents [OSTI]

    Haaland, David M. (Albuquerque, NM); Melgaard, David K. (Albuquerque, NM)

    2005-01-11T23:59:59.000Z

    A method of multivariate spectral analysis, termed augmented classical least squares (ACLS), provides an improved CLS calibration model when unmodeled sources of spectral variation are contained in a calibration sample set. The ACLS methods use information derived from component or spectral residuals during the CLS calibration to provide an improved calibration-augmented CLS model. The ACLS methods are based on CLS so that they retain the qualitative benefits of CLS, yet they have the flexibility of PLS and other hybrid techniques in that they can define a prediction model even with unmodeled sources of spectral variation that are not explicitly included in the calibration model. The unmodeled sources of spectral variation may be unknown constituents, constituents with unknown concentrations, nonlinear responses, non-uniform and correlated errors, or other sources of spectral variation that are present in the calibration sample spectra. Also, since the various ACLS methods are based on CLS, they can incorporate the new prediction-augmented CLS (PACLS) method of updating the prediction model for new sources of spectral variation contained in the prediction sample set without having to return to the calibration process. The ACLS methods can also be applied to alternating least squares models. The ACLS methods can be applied to all types of multivariate data.

  8. Augmented classical least squares multivariate spectral analysis

    DOE Patents [OSTI]

    Haaland, David M.; Melgaard, David K.

    2004-02-03T23:59:59.000Z

    A method of multivariate spectral analysis, termed augmented classical least squares (ACLS), provides an improved CLS calibration model when unmodeled sources of spectral variation are contained in a calibration sample set. The ACLS methods use information derived from component or spectral residuals during the CLS calibration to provide an improved calibration-augmented CLS model. The ACLS methods are based on CLS so that they retain the qualitative benefits of CLS, yet they have the flexibility of PLS and other hybrid techniques in that they can define a prediction model even with unmodeled sources of spectral variation that are not explicitly included in the calibration model. The unmodeled sources of spectral variation may be unknown constituents, constituents with unknown concentrations, nonlinear responses, non-uniform and correlated errors, or other sources of spectral variation that are present in the calibration sample spectra. Also, since the various ACLS methods are based on CLS, they can incorporate the new prediction-augmented CLS (PACLS) method of updating the prediction model for new sources of spectral variation contained in the prediction sample set without having to return to the calibration process. The ACLS methods can also be applied to alternating least squares models. The ACLS methods can be applied to all types of multivariate data.

  9. Hybrid least squares multivariate spectral analysis methods

    DOE Patents [OSTI]

    Haaland, David M.

    2004-03-23T23:59:59.000Z

    A set of hybrid least squares multivariate spectral analysis methods in which spectral shapes of components or effects not present in the original calibration step are added in a following prediction or calibration step to improve the accuracy of the estimation of the amount of the original components in the sampled mixture. The hybrid method herein means a combination of an initial calibration step with subsequent analysis by an inverse multivariate analysis method. A spectral shape herein means normally the spectral shape of a non-calibrated chemical component in the sample mixture but can also mean the spectral shapes of other sources of spectral variation, including temperature drift, shifts between spectrometers, spectrometer drift, etc. The shape can be continuous, discontinuous, or even discrete points illustrative of the particular effect.

  10. Classical least squares multivariate spectral analysis

    DOE Patents [OSTI]

    Haaland, David M. (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    An improved classical least squares multivariate spectral analysis method that adds spectral shapes describing non-calibrated components and system effects (other than baseline corrections) present in the analyzed mixture to the prediction phase of the method. These improvements decrease or eliminate many of the restrictions to the CLS-type methods and greatly extend their capabilities, accuracy, and precision. One new application of PACLS includes the ability to accurately predict unknown sample concentrations when new unmodeled spectral components are present in the unknown samples. Other applications of PACLS include the incorporation of spectrometer drift into the quantitative multivariate model and the maintenance of a calibration on a drifting spectrometer. Finally, the ability of PACLS to transfer a multivariate model between spectrometers is demonstrated.

  11. 2-D weighted least-squares phase unwrapping

    DOE Patents [OSTI]

    Ghiglia, Dennis C. (Placitas, NM); Romero, Louis A. (Albuquerque, NM)

    1995-01-01T23:59:59.000Z

    Weighted values of interferometric signals are unwrapped by determining the least squares solution of phase unwrapping for unweighted values of the interferometric signals; and then determining the least squares solution of phase unwrapping for weighted values of the interferometric signals by preconditioned conjugate gradient methods using the unweighted solutions as preconditioning values. An output is provided that is representative of the least squares solution of phase unwrapping for weighted values of the interferometric signals.

  12. ON LEAST SQUARES EUCLIDEAN DISTANCE MATRIX APPROXIMATION AND COMPLETION

    E-Print Network [OSTI]

    in biological or engineering applications, including molecular structure analysis, protein folding problem. distance geometry, least squares approximation, matrix completion, molecular structure, protein folding

  13. LEAST-SQUARES FINITE ELEMENT METHODS FOR OPTIMALITY SYSTEMS ARISING

    E-Print Network [OSTI]

    Bochev, Pavel

    LEAST-SQUARES FINITE ELEMENT METHODS FOR OPTIMALITY SYSTEMS ARISING IN OPTIMIZATION AND CONTROL control problems for systems governed by linear, elliptic partial differential equations is considered modern least-squares finite element methods for the solution of the optimality systems. The matrix equa

  14. Extended Kalman Filter Using a Kernel Recursive Least Squares Observer

    E-Print Network [OSTI]

    Slatton, Clint

    Extended Kalman Filter Using a Kernel Recursive Least Squares Observer Pingping Zhu, Badong Chen estimation problem combining the extended Kalman filter (EKF) with a kernel recursive least squares (KRLS Kalman filter, EKF and KRLS algorithms. Results demonstrate that the performance of the EKF

  15. JITTER COMPENSATION IN SAMPLING VIA POLYNOMIAL LEAST SQUARES ESTIMATION

    E-Print Network [OSTI]

    Goyal, Vivek K

    JITTER COMPENSATION IN SAMPLING VIA POLYNOMIAL LEAST SQUARES ESTIMATION Daniel S. Weller and Vivek Science Email: {dweller, vgoyal}@mit.edu ABSTRACT Sampling error due to jitter, or noise in the sample independent jitter and additive noise, as an alternative to the linear least squares (LLS) estimator. After

  16. Random Disease on the Square Grid J ozsef Balogh

    E-Print Network [OSTI]

    Balogh, Jozsef

    a disease process. The initial configuration is called contagious or successful if the corresponding) squares in a contagious configuration. The solution of the initial exercise is the following: Fact. [Folklore] G(n) = n. Proof. If we paint the squares of a diagonal black, it will be a contagious

  17. The distribution of prime numbers on the square root spiral

    E-Print Network [OSTI]

    Harry K. Hahn; Robert Sachs

    2008-01-09T23:59:59.000Z

    Prime Numbers clearly accumulate on defined spiral graphs,which run through the Square Root Spiral. These spiral graphs can be assigned to different spiral-systems, in which all spiral-graphs have the same direction of rotation and the same -second difference- between the numbers, which lie on these spiral-graphs. A mathematical analysis shows, that these spiral graphs are caused exclusively by quadratic polynomials. For example the well known Euler Polynomial x2+x+41 appears on the Square Root Spiral in the form of three spiral-graphs, which are defined by three different quadratic polynomials. All natural numbers,divisible by a certain prime factor, also lie on defined spiral graphs on the Square Root Spiral (or Spiral of Theodorus, or Wurzelspirale). And the Square Numbers 4, 9, 16, 25, 36 even form a highly three-symmetrical system of three spiral graphs, which divides the square root spiral into three equal areas. Fibonacci number sequences also play a part in the structure of the Square Root Spiral. With the help of the Number-Spiral, described by Mr. Robert Sachs, a comparison can be drawn between the Square Root Spiral and the Ulam Spiral. The shown sections of his study of the number spiral contain diagrams, which are related to my analysis results, especially in regards to the distribution of prime numbers.

  18. Optimal and efficient semi-Latin squares Leonard H. Soicher

    E-Print Network [OSTI]

    Soicher, Leonard H.

    Optimal and efficient semi-Latin squares Leonard H. Soicher School of Mathematical Sciences, Queen permutation, a column permutation, Email address: L.H.Soicher@qmul.ac.uk (Leonard H. Soicher) Preprint

  19. An improved method for weighted least squares IIR filter design

    E-Print Network [OSTI]

    Davila-Pazmino, Javier

    1999-01-01T23:59:59.000Z

    Recently, a new method for IIR weighted least squares filter design has been proposed. In this method, the problem of approximating a desired frequency response using a rational function is solved using an iterative approach. After studying...

  20. Community, space, and performance : a public stage in Central Square

    E-Print Network [OSTI]

    De Sola, David Theodore

    1995-01-01T23:59:59.000Z

    In this thesis I strive to explore the question, "what is good architecture?" through the design of a facility for formal and informal musical and theatrical performance. The site for this project is in Central Square, ...

  1. Jitter compensation in sampling via polynomial least squares estimation

    E-Print Network [OSTI]

    Weller, Daniel Stuart

    Sampling error due to jitter, or noise in the sample times, affects the precision of analog-to-digital converters in a significant, nonlinear fashion. In this paper, a polynomial least squares (PLS) estimator is derived ...

  2. Lumenhaus Shows Off Solar in Times Square | Department of Energy

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

    West Potomac Park in Washington, D.C. Virginia Tech's Lumenhaus - a net-zero energy, solar-powered, 650-square-foot home - made a stop in New York on its tour, right in the...

  3. EFFICIENT ALGORITHMS FOR SOLUTION OF REGULARIZED TOTAL LEAST SQUARES

    E-Print Network [OSTI]

    Renaut, Rosemary

    EFFICIENT ALGORITHMS FOR SOLUTION OF REGULARIZED TOTAL LEAST SQUARES ROSEMARY A. RENAUT AND HONGBIN-1804 (renaut@asu.edu, hb guo@asu.edu). 457 #12;458 ROSEMARY A. RENAUT AND HONGBIN GUO Here denotes the 2-norm

  4. Tests of the Gravitational Inverse-Square Law

    E-Print Network [OSTI]

    E. G. Adelberger; B. R. Heckel; A. E. Nelson

    2003-07-22T23:59:59.000Z

    We review recent experimental tests of the gravitational inverse-square law and the wide variety of theoretical considerations that suggest the law may break down in experimentally accessible regions.

  5. Footage Drilled for Crude Oil and Natural Gas Wells

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17 3400, U.S.MajorMarkets EnergyConsumption5ValuesJune

  6. U.S. uranium drilling in footage, 2004-13

    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 Spin TransitionProgram | Department Home >Area:DepartmentSecurity

  7. PAGE I OF __ pAGES STANDARD ~M 135

    E-Print Network [OSTI]

    Rathbun, Julie A.

    th concurrence of MSC Records Management Technicia~ -- - -- 2. SQUARE FEET OF SPACE CLEARED 3. Fl. (Signature) - - 10, TITLE 11. DATE' Records Management Technici~n 7/23/70 12. BOX NUMBERS FRC ONLYPAGE I OF __ pAGES STANDARD ~M 135 RECORbJ TRANSMITTAL TO BE COMPI , AT FEDERAL RECORDS CENTER JULY

  8. A Least-Squares Transport Equation Compatible with Voids

    SciTech Connect (OSTI)

    Jon Hansen; Jacob Peterson; Jim Morel; Jean Ragusa; Yaqi Wang

    2014-09-01T23:59:59.000Z

    Standard second-order self-adjoint forms of the transport equation, such as the evenparity, odd-parity, and self-adjoint angular flux equation, cannot be used in voids. Perhaps more important, they experience numerical convergence difficulties in near-voids. Here we present a new form of a second-order self-adjoint transport equation that has an advantage relative to standard forms in that it can be used in voids or near-voids. Our equation is closely related to the standard least-squares form of the transport equation with both equations being applicable in a void and having a nonconservative analytic form. However, unlike the standard least-squares form of the transport equation, our least-squares equation is compatible with source iteration. It has been found that the standard least-squares form of the transport equation with a linear-continuous finite-element spatial discretization has difficulty in the thick diffusion limit. Here we extensively test the 1D slab-geometry version of our scheme with respect to void solutions, spatial convergence rate, and the intermediate and thick diffusion limits. We also define an effective diffusion synthetic acceleration scheme for our discretization. Our conclusion is that our least-squares Sn formulation represents an excellent alternative to existing second-order Sn transport formulations

  9. Organic light-emitting diodes from homoleptic square planar complexes

    DOE Patents [OSTI]

    Omary, Mohammad A

    2013-11-12T23:59:59.000Z

    Homoleptic square planar complexes [M(N.LAMBDA.N).sub.2], wherein two identical N.LAMBDA.N bidentate anionic ligands are coordinated to the M(II) metal center, including bidentate square planar complexes of triazolates, possess optical and electrical properties that make them useful for a wide variety of optical and electrical devices and applications. In particular, the complexes are useful for obtaining white or monochromatic organic light-emitting diodes ("OLEDs"). Improved white organic light emitting diode ("WOLED") designs have improved efficacy and/or color stability at high brightness in single- or two-emitter white or monochrome OLEDs that utilize homoleptic square planar complexes, including bis[3,5-bis(2-pyridyl)-1,2,4-triazolato]platinum(II) ("Pt(ptp).sub.2").

  10. Store House : unpacking the American dream

    E-Print Network [OSTI]

    Barker, Kyle (Kyle Lawrence)

    2014-01-01T23:59:59.000Z

    Since 1950 the average US home has grown from 1100 square feet to over 2600 square feet. During this same period the average family size shrunk by a person, meaning that per capita residential square footage has more than ...

  11. Majority-vote model with heterogeneous agents on square lattice

    E-Print Network [OSTI]

    Lima, F W S

    2013-01-01T23:59:59.000Z

    We study a nonequilibrium model with up-down symmetry and a noise parameter $q$ known as majority-vote model of M.J. Oliveira 1992 with heterogeneous agents on square lattice. By Monte Carlo simulations and finite-size scaling relations the critical exponents $\\beta/\

  12. Rectilinear Glass-Cut Dissections of Rectangles to Squares

    E-Print Network [OSTI]

    Urrutia, Jorge

    Rectilinear Glass-Cut Dissections of Rectangles to Squares Jurek Czyzowicz§ czyzowic is made using only rectilinear glass-cuts, i.e., vertical or horizontal straight-line cuts separating pieces into two. 1 Introduction A glass-cut of a rectangle is a cut by a straight-line segment

  13. Subspace Segmentation with A Minimal Squared Frobenius Norm Representation

    E-Print Network [OSTI]

    Yu, Yizhou

    Minimal Squared Frobenius Norm Representa- tion (MSFNR). MSFNR performs data clustering by solving benchmark [9]. However, LRR in- volves nuclear norm1 minimization. Solving LRR re- quires computing multiple Representation (MSFNR). It employs convex optimization to perform subspace clustering. The method minimizes

  14. Proton root-mean-square radii and electron scattering

    E-Print Network [OSTI]

    Ingo Sick; Dirk Trautmann

    2014-07-07T23:59:59.000Z

    The standard procedure of extracting the proton root-mean-square radii from models for the Sachs form factors $G_e (q)$ and $G_m (q)$ fitted to elastic electron-proton scattering data %has a serious flaw. is more uncertain than traditionally assumed. The extrapolation of $G(q)$, from the region $q_{min} reliable $rms$-radii be determined.

  15. Fast Bootstrap for Least-square Support Vector Machines

    E-Print Network [OSTI]

    Verleysen, Michel

    Fast Bootstrap for Least-square Support Vector Machines A. Lendasse1 , G. Simon2 , V. Wertz3 , M, CESAME, 4 av. G. Lematre B-1348 Louvain-la-Neuve, Belgium, wertz@auto.ucl.ac.be. Abstract. The Bootstrap of the Bootstrap implies a high computational load. In this paper we present a simple procedure to obtain a fast

  16. CONTRACTION AND SUM OF SQUARES ANALYSIS OF HCCI ENGINES

    E-Print Network [OSTI]

    Shaver, Gregory M.

    CONTRACTION AND SUM OF SQUARES ANALYSIS OF HCCI ENGINES Gregory M. Shaver , Aleksandar Koji´c , J ignition (HCCI), requires not only precise valve control but also a combustion control strategy, HCCI has no specific event that initiates combustion. Since exhaust gas is re-inducted from

  17. An Efficient SquareRoot Algorithm for BLAST Babak Hassibi

    E-Print Network [OSTI]

    Hassibi, Babak

    antennas, BLAST first decodes the ``strongest'' signal, then cancels the effect of this strongest transmitAn Efficient SquareRoot Algorithm for BLAST Babak Hassibi Mathematics of Communications ResearchTime (BLAST) is a scheme for transmitting information over a richscattering wireless environment using

  18. Aging of gaseous detectors

    SciTech Connect (OSTI)

    Va'Vra, J.

    1990-03-01T23:59:59.000Z

    This paper makes an overview of developments in the wire chamber aging field since the wire chamber aging workshop held at the Lawrence Berkeley Laboratory, Berkeley, California on January 16--17, 1986. The author discusses new techniques to analyze the gas impurities and the wire aging products, wire nonaging'' in clean systems, wire aging in systems containing various impurities, various examples of problems which can prime'' surfaces prior to the occurrence of the aging, and some recent aging experience with the SSC micro-straw tubes.'' 35 refs., 10 figs., 2 tabs.

  19. Three-state majority-vote model on square lattice

    E-Print Network [OSTI]

    Lima, F W S

    2011-01-01T23:59:59.000Z

    Here, the model of non-equilibrium model with two states ($-1,+1$) and a noise $q$ on simple square lattices proposed for M.J. Oliveira (1992) following the conjecture of up-down symmetry of Grinstein and colleagues (1985) is studied and generalized. This model is well-known, today, as Majority-Vote Model. They showed, through Monte Carlo simulations, that their obtained results fall into the universality class of the equilibrium Ising model on a square lattice. In this work, we generalize the Majority-Vote Model for a version with three states, now including the zero state, ($-1,0,+1$) in two dimensions. Using Monte Carlo simulations, we showed that our model falls into the universality class of the spin-1 ($-1,0,+1$) and spin-1/2 Ising model and also agree with Majority-Vote Model proposed for M.J. Oliveira (1992) . The exponents ratio obtained for our model was $\\gamma/\

  20. The 160 Square Degree ROSAT Survey - Revised Catalog & Cluster Evolution

    E-Print Network [OSTI]

    Mullis, C; Quintana, H; Vikhlinin, A; Henry, P; Gioia, I; Hornstrup, A; Forman, W; Jones, C; Mullis, Christopher; Namara, Brian Mc; Quintana, Hernan; Vikhlinin, Alexey; Henry, Patrick; Gioia, Isabella; Hornstrup, Allan; Forman, William; Jones, Christine

    2003-01-01T23:59:59.000Z

    We have constructed a large, statistically complete sample of galaxy clusters serendipitously detected as extended X-ray sources in 647 ROSAT PSPC pointed observations. The survey covers 158 square degrees with a median sample flux limit of 1.2 x 10^-13 erg cm^-2 s^-1 (0.5-2.0 keV). Our sample consists of 201 clusters of galaxies characterized by a median redshift of z=0.25 and a maximum of z=1.26. With 22 clusters at z > 0.5, the 160 Square Degree ROSAT Survey is the largest high-redshift sample of X-ray-selected clusters published to date. Here we describe the revised sample which features spectroscopic redshifts for 99.5% of the clusters and discuss the implications for evolution in the cluster abundance.

  1. Optimization of the geometrical stability in square ring laser gyroscopes

    E-Print Network [OSTI]

    R. Santagata; A. Beghi; J. Belfi; N. Beverini; D. Cuccato; A. Di Virgilio; A. Ortolan; A. Porzio; S. Solimeno

    2014-11-12T23:59:59.000Z

    Ultra sensitive ring laser gyroscopes are regarded as potential detectors of the general relativistic frame-dragging effect due to the rotation of the Earth: the project name is GINGER (Gyroscopes IN GEneral Relativity), a ground-based triaxial array of ring lasers aiming at measuring the Earth rotation rate with an accuracy of 10^-14 rad/s. Such ambitious goal is now within reach as large area ring lasers are very close to the necessary sensitivity and stability. However, demanding constraints on the geometrical stability of the laser optical path inside the ring cavity are required. Thus we have started a detailed study of the geometry of an optical cavity, in order to find a control strategy for its geometry which could meet the specifications of the GINGER project. As the cavity perimeter has a stationary point for the square configuration, we identify a set of transformations on the mirror positions which allows us to adjust the laser beam steering to the shape of a square. We show that the geometrical stability of a square cavity strongly increases by implementing a suitable system to measure the mirror distances, and that the geometry stabilization can be achieved by measuring the absolute lengths of the two diagonals and the perimeter of the ring.

  2. A square root analog to digital converter to optimally convert photonic signals for computed tomography

    E-Print Network [OSTI]

    Bieniosek, Matthew (Matthew F.)

    2010-01-01T23:59:59.000Z

    The arrival of photons at a given location is a Poisson process with an associated shot noise which rises with the square root of the number of photons received. An analog-to-digital converter (ADC) with a square root ...

  3. Parallel Variable Distribution for Total Least Squares Hongbin Guo1, and Rosemary A. Renaut1

    E-Print Network [OSTI]

    Renaut, Rosemary

    Parallel Variable Distribution for Total Least Squares Hongbin Guo1, and Rosemary A. Renaut1 1 Variable Distribution for Total Least Squares Hongbin Guo1, and Rosemary A. Renaut1 1Department

  4. Control and Optimization of Vapor Compression Cycles Using Recursive Least Squares Estimation

    E-Print Network [OSTI]

    Rani, Avinash

    2012-10-19T23:59:59.000Z

    ....................................................................................................... 22 Data Acquisition .............................................................................................. 25 III DYNAMIC ANALYSIS OF WATER CHILLER SYSTEM ........................ 26 System Identification Theory... ......................................................................... 26 Frequency Response of Experimental System. ............................................ 31 IV RECURSIVE LEAST SQUARES THEORY ................................................ 34 Application of Recursive Least Squares Algorithm...

  5. Positive Scattering Cross Sections using Constrained Least Squares

    SciTech Connect (OSTI)

    Dahl, J.A.; Ganapol, B.D.; Morel, J.E.

    1999-09-27T23:59:59.000Z

    A method which creates a positive Legendre expansion from truncated Legendre cross section libraries is presented. The cross section moments of order two and greater are modified by a constrained least squares algorithm, subject to the constraints that the zeroth and first moments remain constant, and that the standard discrete ordinate scattering matrix is positive. A method using the maximum entropy representation of the cross section which reduces the error of these modified moments is also presented. These methods are implemented in PARTISN, and numerical results from a transport calculation using highly anisotropic scattering cross sections with the exponential discontinuous spatial scheme is presented.

  6. 15 Squares mod p Fix a prime p.

    E-Print Network [OSTI]

    Ramakrishnan, Dinakar

    15 Squares mod p Fix a prime p. Basic question: Given a, how can we determine if #b # Z such that a # b 2 (mod p)? Trivial case if p|a, take b # 0. So from now on take (a, p) = 1. p=3 p=5 p=7 x x 2 x x 2 x x 2 1 1 1 1 1 1 2 1 2 1 2 4 3 1 4 2 1=4 1 5 4 6 1 1 # d p 1, 4 as mod 5 1, 2, 4 as mod p 2

  7. 15 Squares mod p Fix a prime p.

    E-Print Network [OSTI]

    Ramakrishnan, Dinakar

    15 Squares mod p Fix a prime p. Basic question: Given a, how can we determine if b Z such that a b2 (mod p)? Trivial case if p|a, take b 0. So from now on take (a, p) = 1. p=3 p=5 p=7 x x2 x x2 x x2 1 1 1 1 1 1 2 1 2 -1 2 4 3 -1 4 2 -1=4 1 5 4 6 1 1 dp 1, 4 as mod 5 1, 2, 4 as mod p 2 2, 3 3

  8. A Least-Squares Transport Equation Compatible with Voids

    E-Print Network [OSTI]

    Hansen, Jon

    2014-04-22T23:59:59.000Z

    . DERIVATION OF EQUATION Let us begin the derivation of our least-squares equation with the first-order monoenergetic transport equation, L? = S? + q 4pi = ?s?+ q 4pi = Q , (2.1) where ? (n/cm2-s-str) is the angular flux, ? (n/cm2-s) is the scalar flux defined... by ? = ? 4pi ? d?, q (n/cm 3-s) is the distributed source, and L is the streaming plus removal operator, L = ?? ? ?? ? + ?t , (2.2) S is the scattering operator, S = ?s 4pi ? 4pi d? , (2.3) ?t (cm?1) denotes the macroscopic total cross section and ?s...

  9. Numerical solution of the linear least squares problem for splines

    E-Print Network [OSTI]

    Vonderhaar, Thomas Jerome

    1975-01-01T23:59:59.000Z

    ) Ci?. . &: , i ~ '(8'??. (Member) (Member) May 1975 ABSTRACT Numerical Solution of the Linear Least Squares Problem for Splines. (May 1975) Thomas Jerome Vonderhaar B. A. , Lewis University Chairman of Advisory Committee: Dr. Philip W. Smith... in the preparation of this thesis. I would also like to thank Dr. C. K. Chui and Dr. R. D. Larsen for serving on my committee. My sincere gratitude goes to Myra McWatt for her understanding and moral support during the completion of this paper. TABLE OF CONTENTS...

  10. aqp4 square arrays: Topics by E-print Network

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

    the Dark Ages and the Epoch of Reionization, (2) Galaxy Evolution, Cosmology, and Dark Energy, (3) The Origin and Evolution of Cosmic Magnetism, (4) Strong Field Tests of Gravity...

  11. An algorithm for recognising the exterior square of a Catherine Greenhill

    E-Print Network [OSTI]

    Greenhill, Catherine

    the motivating case of multisets of eigenvalues of matrices. 1 Introduction The exterior square of a vector space of X on the exterior square of the underlying vector space. This relationship is fully determinedAn algorithm for recognising the exterior square of a multiset Catherine Greenhill School

  12. A maximum entropy-least squares estimator for elastic origin-destination trip matrix estimation

    E-Print Network [OSTI]

    Kockelman, Kara M.

    A maximum entropy-least squares estimator for elastic origin- destination trip matrix estimation propose a combined maximum entropy-least squares (ME-LS) estimator, by which O- D flows are distributed-destination trip table; elastic demand; maximum entropy; least squares; subnetwork analysis; convex combination

  13. Faraday rotation data analysis with least-squares elliptical fitting

    SciTech Connect (OSTI)

    White, Adam D.; McHale, G. Brent; Goerz, David A.; Speer, Ron D. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

    2010-10-15T23:59:59.000Z

    A method of analyzing Faraday rotation data from pulsed magnetic field measurements is described. The method uses direct least-squares elliptical fitting to measured data. The least-squares fit conic parameters are used to rotate, translate, and rescale the measured data. Interpretation of the transformed data provides improved accuracy and time-resolution characteristics compared with many existing methods of analyzing Faraday rotation data. The method is especially useful when linear birefringence is present at the input or output of the sensing medium, or when the relative angle of the polarizers used in analysis is not aligned with precision; under these circumstances the method is shown to return the analytically correct input signal. The method may be pertinent to other applications where analysis of Lissajous figures is required, such as the velocity interferometer system for any reflector (VISAR) diagnostics. The entire algorithm is fully automated and requires no user interaction. An example of algorithm execution is shown, using data from a fiber-based Faraday rotation sensor on a capacitive discharge experiment.

  14. Square Turing patterns in reaction-diffusion systems with coupled layers

    SciTech Connect (OSTI)

    Li, Jing [State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871 (China)] [State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871 (China); Wang, Hongli, E-mail: hlwang@pku.edu.cn, E-mail: qi@pku.edu.cn [State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871 (China) [State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871 (China); Center for Quantitative Biology, Peking University, Beijing 100871 (China); Ouyang, Qi, E-mail: hlwang@pku.edu.cn, E-mail: qi@pku.edu.cn [State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871 (China) [State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing 100871 (China); Center for Quantitative Biology, Peking University, Beijing 100871 (China); The Peking-Tsinghua Center for Life Sciences, Beijing 100871 (China)

    2014-06-15T23:59:59.000Z

    Square Turing patterns are usually unstable in reaction-diffusion systems and are rarely observed in corresponding experiments and simulations. We report here an example of spontaneous formation of square Turing patterns with the Lengyel-Epstein model of two coupled layers. The squares are found to be a result of the resonance between two supercritical Turing modes with an appropriate ratio. Besides, the spatiotemporal resonance of Turing modes resembles to the mode-locking phenomenon. Analysis of the general amplitude equations for square patterns reveals that the fixed point corresponding to square Turing patterns is stationary when the parameters adopt appropriate values.

  15. Parylene C Aging Studies.

    SciTech Connect (OSTI)

    Achyuthan, Komandoor; Sawyer, Patricia Sue.; Mata, Guillermo Adrian; White II, Gregory Von; Bernstein, Robert

    2014-09-01T23:59:59.000Z

    Parylene C is used in a device because of its conformable deposition and other advantages. Techniques to study Parylene C aging were developed, and %22lessons learned%22 that could be utilized for future studies are the result of this initial study. Differential Scanning Calorimetry yielded temperature ranges for Parylene C aging as well as post-deposition treatment. Post-deposition techniques are suggested to improve Parylene C performance. Sample preparation was critical to aging regimen. Short-term (~40 days) aging experiments with free standing and ceramic-supported Parylene C films highlighted %22lessons learned%22 which stressed further investigations in order to refine sample preparation (film thickness, single sided uniform coating, machine versus laser cutting, annealing time, temperature) and testing issues (%22necking%22) for robust accelerated aging of Parylene C.

  16. COOEE bitumen: chemical aging

    E-Print Network [OSTI]

    Lemarchand, Claire A; Dyre, Jeppe C; Hansen, Jesper S

    2013-01-01T23:59:59.000Z

    We study chemical aging in "COOEE bitumen" using molecular dynamic simulations. The model bitumen is composed of four realistic molecule types: saturated hydrocarbon, resinous oil, resin, and asphaltene. The aging reaction is modelled by the chemical reaction: "2 resins $\\rightarrow$ 1 asphaltene". Molecular dynamic simulations of four bitumen compositions, obtained by a repeated application of the aging reaction, are performed. The stress autocorrelation function, the fluid structure, the rotational dynamics of the plane aromatic molecules, and the diffusivity of each molecule, are determined for the four different compositions. The aging reaction causes a significant dynamics slowdown, which is correlated to the aggregation of asphaltene molecules in larger and dynamically slower nanoaggregates. Finally, a detailed description of the role of each molecule types in the aggregation and aging processes is given.

  17. Quantum root-mean-square error and measurement uncertainty relations

    E-Print Network [OSTI]

    Paul Busch; Pekka Lahti; Reinhard F Werner

    2014-10-10T23:59:59.000Z

    Recent years have witnessed a controversy over Heisenberg's famous error-disturbance relation. Here we resolve the conflict by way of an analysis of the possible conceptualizations of measurement error and disturbance in quantum mechanics. We discuss two approaches to adapting the classic notion of root-mean-square error to quantum measurements. One is based on the concept of noise operator; its natural operational content is that of a mean deviation of the values of two observables measured jointly, and thus its applicability is limited to cases where such joint measurements are available. The second error measure quantifies the differences between two probability distributions obtained in separate runs of measurements and is of unrestricted applicability. We show that there are no nontrivial unconditional joint-measurement bounds for {\\em state-dependent} errors in the conceptual framework discussed here, while Heisenberg-type measurement uncertainty relations for {\\em state-independent} errors have been proven.

  18. Least Squares Shadowing sensitivity analysis of chaotic limit cycle oscillations

    SciTech Connect (OSTI)

    Wang, Qiqi, E-mail: qiqi@mit.edu; Hu, Rui, E-mail: hurui@mit.edu; Blonigan, Patrick, E-mail: blonigan@mit.edu

    2014-06-15T23:59:59.000Z

    The adjoint method, among other sensitivity analysis methods, can fail in chaotic dynamical systems. The result from these methods can be too large, often by orders of magnitude, when the result is the derivative of a long time averaged quantity. This failure is known to be caused by ill-conditioned initial value problems. This paper overcomes this failure by replacing the initial value problem with the well-conditioned least squares shadowing (LSS) problem. The LSS problem is then linearized in our sensitivity analysis algorithm, which computes a derivative that converges to the derivative of the infinitely long time average. We demonstrate our algorithm in several dynamical systems exhibiting both periodic and chaotic oscillations.

  19. The ordered distribution of natural numbers on the square root spiral

    E-Print Network [OSTI]

    Harry K. Hahn; Kay Schoenberger

    2007-12-13T23:59:59.000Z

    Natural numbers divisible by the same prime factor lie on defined spiral graphs which are running through the Square Root Spiral (also named as the Spiral of Theodorus or Wurzel Spirale or Einstein Spiral). Prime Numbers also clearly accumulate on such spiral graphs. And the square numbers 4, 9, 16, 25, 36,... form a highly three-symmetrical system of three spiral graphs, which divides the square-root-spiral into three equal areas. A mathematical analysis shows that these spiral graphs are defined by quadratic polynomials. Fibonacci number sequences also play a part in the structure of the Square Root Spiral. Fibonacci Numbers divide the Square Root Spiral into areas and angle sectors with constant proportions. These proportions are linked to the golden mean (or golden section), which behaves as a self-avoiding-walk-constant in the lattice-like structure of the square root spiral.

  20. (522)revision:2004-09-14modified:2005-06-17 BOREL SETS WITH LARGE SQUARES

    E-Print Network [OSTI]

    Shelah, Saharon

    (522)revision:2004-09-14modified:2005-06-17 BOREL SETS WITH LARGE SQUARES SAHARON SHELAH Abstract;(522)revision:2004-09-14modified:2005-06-17 2 SAHARON SHELAH but no µ+-square. Lastly (in 1.15) assuming MA one is #12;(522)revision:2004-09-14modified:2005-06-17 BOREL SETS WITH LARGE SQUARES 3 ()1

  1. Science With The Australian Square Kilometre Array Pathfinder

    E-Print Network [OSTI]

    Simon Johnston

    2007-11-14T23:59:59.000Z

    The future of cm and m-wave astronomy lies with the Square Kilometre Array (SKA), a telescope under development by a consortium of 17 countries that will be 50 times more sensitive than any existing radio facility. Most of the key science for the SKA will be addressed through large-area imaging of the Universe at frequencies from a few hundred MHz to a few GHz. The Australian SKA Pathfinder (ASKAP) is a technology demonstrator aimed in the mid-frequency range, and achieves instantaneous wide-area imaging through the development and deployment of phased-array feed systems on parabolic reflectors. The large field-of-view makes ASKAP an unprecedented synoptic telescope that will make substantial advances in SKA key science. ASKAP will be located at the Murchison Radio Observatory in inland Western Australia, one of the most radio-quiet locations on the Earth and one of two sites selected by the international community as a potential location for the SKA. In this paper, we outline an ambitious science program for ASKAP, examining key science such as understanding the evolution, formation and population of galaxies including our own, understanding the magnetic Universe, revealing the transient radio sky and searching for gravitational waves.

  2. Measuring the Neutron's Mean Square Charge Radius Using Neutron Interferometry

    E-Print Network [OSTI]

    F. E. Wietfeldt; M. Huber; T. C. Black; H. Kaiser; M. Arif; D. L. Jacobson; S. A. Werner

    2005-09-14T23:59:59.000Z

    The neutron is electrically neutral, but its substructure consists of charged quarks so it may have an internal charge distribution. In fact it is known to have a negative mean square charge radius (MSCR), the second moment of the radial charge density. In other words the neutron has a positive core and negative skin. In the first Born approximation the neutron MSCR can be simply related to the neutron-electron scattering length b_ne. In the past this important quantity has been extracted from the energy dependence of the total transmission cross-section of neutrons on high-Z targets, a very difficult and complicated process. A few years ago S.A. Werner proposed a novel approach to measuring b_ne from the neutron's dynamical phase shift in a perfect crystal close to the Bragg condition. We are conducting an experiment based on this method at the NIST neutron interferometer which may lead to a five-fold improvement in precision of b_ne and hence the neutron MSCR.

  3. The Square Kilometre Array: A new probe of cosmic magnetism

    E-Print Network [OSTI]

    Bryan M. Gaensler

    2006-03-02T23:59:59.000Z

    Magnetic fields are a fundamental part of many astrophysical phenomena, but the evolution, structure and origin of magnetic fields are still unresolved problems in physics and astrophysics. When and how were the first fields generated? Are present-day magnetic fields the result of standard dynamo action, or do they represent rapid or recent field amplification through other processes? What role do magnetic fields play in turbulence, cosmic ray acceleration and structure formation? I explain how the Square Kilometre Array (SKA), a next-generation radio telescope, can deliver stunning new data-sets that will address these currently unanswered issues. The foundation for these experiments will be an all-sky survey of rotation measures, in which Faraday rotation toward >10^7 background sources will provide a dense grid for probing magnetism in the Milky Way, nearby galaxies, and in distant galaxies, clusters and protogalaxies. Using these data, we can map out the evolution of magnetized structures from redshifts z > 3 to the present, can distinguish between different origins for seed magnetic fields in galaxies, and can develop a detailed model of the magnetic field geometry of the intergalactic medium and of the overall Universe. In addition, the SKA will certainly discover new magnetic phenomena beyond what we can currently predict or imagine.

  4. Attractive Inverse Square Potential, U(1) Gauge, and Winding Transitions

    E-Print Network [OSTI]

    Cristiano Nisoli; Alan. R. Bishop

    2014-10-18T23:59:59.000Z

    The inverse square potential arises in a variety of different quantum phenomena, yet notoriously it must be handled with care: it suffers from pathologies rooted in the mathematical foundations of quantum mechanics. We show that its recently studied conformality-breaking corresponds to an infinitely smooth winding-unwinding topological transition for the {\\it classical} statistical mechanics of a one-dimensional system: this describes the the tangling/untangling of floppy polymers under a biasing torque. When the ratio between torque and temperature exceeds a critical value the polymer undergoes tangled oscillations, with an extensive winding number. At lower torque or higher temperature the winding number per unit length is zero. Approaching criticality, the correlation length of the order parameter---the extensive winding number---follows a Kosterlitz-Thouless type law. The model is described by the Wilson line of a (0+1) $U(1)$ gauge theory, and applies to the tangling/untangling of floppy polymers and to the winding/diffusing kinetics in diffusion-convection-reactions.

  5. New Age Teaching: Beyond Didactics

    E-Print Network [OSTI]

    Vlaovic, Peter D; McDougall, Elspeth M

    2006-01-01T23:59:59.000Z

    Age Teaching: Beyond Didactics TheScientificWorldJOURNAL (New age teaching: beyond didactics. TSW Urology 1, 7585.New Age Teaching: Beyond Didactics Peter D. Vlaovic and

  6. Finding a Minimally Informative Dirichlet Prior Distribution Using Least Squares

    SciTech Connect (OSTI)

    Dana Kelly; Corwin Atwood

    2011-03-01T23:59:59.000Z

    In a Bayesian framework, the Dirichlet distribution is the conjugate distribution to the multinomial likelihood function, and so the analyst is required to develop a Dirichlet prior that incorporates available information. However, as it is a multiparameter distribution, choosing the Dirichlet parameters is less straight-forward than choosing a prior distribution for a single parameter, such as p in the binomial distribution. In particular, one may wish to incorporate limited information into the prior, resulting in a minimally informative prior distribution that is responsive to updates with sparse data. In the case of binomial p or Poisson, the principle of maximum entropy can be employed to obtain a so-called constrained noninformative prior. However, even in the case of p, such a distribution cannot be written down in closed form, and so an approximate beta distribution is used in the case of p. In the case of the multinomial model with parametric constraints, the approach of maximum entropy does not appear tractable. This paper presents an alternative approach, based on constrained minimization of a least-squares objective function, which leads to a minimally informative Dirichlet prior distribution. The alpha-factor model for common-cause failure, which is widely used in the United States, is the motivation for this approach, and is used to illustrate the method. In this approach to modeling common-cause failure, the alpha-factors, which are the parameters in the underlying multinomial aleatory model for common-cause failure, must be estimated from data that is often quite sparse, because common-cause failures tend to be rare, especially failures of more than two or three components, and so a prior distribution that is responsive to updates with sparse data is needed.

  7. Finding A Minimally Informative Dirichlet Prior Using Least Squares

    SciTech Connect (OSTI)

    Dana Kelly

    2011-03-01T23:59:59.000Z

    In a Bayesian framework, the Dirichlet distribution is the conjugate distribution to the multinomial likelihood function, and so the analyst is required to develop a Dirichlet prior that incorporates available information. However, as it is a multiparameter distribution, choosing the Dirichlet parameters is less straightforward than choosing a prior distribution for a single parameter, such as p in the binomial distribution. In particular, one may wish to incorporate limited information into the prior, resulting in a minimally informative prior distribution that is responsive to updates with sparse data. In the case of binomial p or Poisson \\lambda, the principle of maximum entropy can be employed to obtain a so-called constrained noninformative prior. However, even in the case of p, such a distribution cannot be written down in the form of a standard distribution (e.g., beta, gamma), and so a beta distribution is used as an approximation in the case of p. In the case of the multinomial model with parametric constraints, the approach of maximum entropy does not appear tractable. This paper presents an alternative approach, based on constrained minimization of a least-squares objective function, which leads to a minimally informative Dirichlet prior distribution. The alpha-factor model for common-cause failure, which is widely used in the United States, is the motivation for this approach, and is used to illustrate the method. In this approach to modeling common-cause failure, the alpha-factors, which are the parameters in the underlying multinomial model for common-cause failure, must be estimated from data that are often quite sparse, because common-cause failures tend to be rare, especially failures of more than two or three components, and so a prior distribution that is responsive to updates with sparse data is needed.

  8. Aging in community

    E-Print Network [OSTI]

    Fay, Justin (Justin Thomas)

    2008-01-01T23:59:59.000Z

    Baby Boomers are on the brink of retirement. According to U.S. Census Bureau projections, the number of people aged 65 and over will more than double in the coming decades, growing from 35 million in 2000 to 72 million in ...

  9. Recursive Total Least Squares: An Alternative to the Discrete Kalman Filter

    E-Print Network [OSTI]

    Boley, Daniel

    Recursive Total Least Squares: An Alternative to the Discrete Kalman Filter Daniel L. Boley The discrete Kalman lter, which is becoming a common tool for reducing uncertainty in robot navigation, su ers total least squares estimator (RTLS) as an alternative to the Kalman lter, and compare

  10. Recursive Total Least Squares: An Alternative to Using the Discrete Kalman

    E-Print Network [OSTI]

    Boley, Daniel

    Recursive Total Least Squares: An Alternative to Using the Discrete Kalman Filter in Robot to ob- tain the best estimate of the robot position. The discrete Kalman filter, com- monly used the Kalman filter. To this end, we propose the use of a Recursive Total Least Squares Filter. This filter

  11. Higher-Order Partial Least Squares (HOPLS): A Generalized Multi-Linear Regression Method

    E-Print Network [OSTI]

    Cichocki, Andrzej

    1 Higher-Order Partial Least Squares (HOPLS): A Generalized Multi-Linear Regression Method Qibin Regression (PLSR) - a multivariate method which, in contrast to Multiple Linear Regression (MLR. A standard way to optimize the model parameters is the Non- linear Iterative Partial Least Squares (NIPALS

  12. EXPERIMENTAL STUDY OF AXISYMMETRIC INSTABILITY OF INVERSE DEE AND SQUARE TOKAMAK EQUILIBRIA

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    EXPERIMENTAL STUDY OF AXISYMMETRIC INSTABILITY OF INVERSE DEE AND SQUARE TOKAMAK EQUILIBRIA COO Study ofAxi.symmetric !nsta bUity of Inverse Dee and Square Tokamak Equilibria B. Lipschultz, S as a function of time in a tokamak with a 4-null poloidal d ivertor. Inverse dee equilibria are observed

  13. Efficient and Robust Non-Rigid Least-Squares Rectification of Medical Images

    E-Print Network [OSTI]

    Orchard, Jeffery J.

    imaging, robust statistics, least-squares. 1 Introduction Advances in medical imaging techniques haveEfficient and Robust Non-Rigid Least-Squares Rectification of Medical Images A. Wong Department of the major problems facing medical imaging is the presence of geometric distortions inherent in an imaging

  14. SKA SA -SQUARE KILOMETRE ARRAY PROJECT TENDER SKA ROACH03/ 012014

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    SKA SA - SQUARE KILOMETRE ARRAY PROJECT TENDER SKA ROACH03/ 012014 DESIGN, MANUFACTURE, SUPPLY AND DELIVERY OF 300 ROACH3 LRUs TENDER NOTICE The South African Square Kilometre Array (SKA) project, which, manufacture, supply and delivery of 300 ROACH3 LRUs to the Cape Town SKA offices. The scope of services

  15. The power and in uence in some Youden squares and secret sharing

    E-Print Network [OSTI]

    Seberry, Jennifer

    The power and in uence in some Youden squares and secret sharing Lakoa Fitina, Kenneth G Russell subsets of critical sets of some Youden squares in the context of secret sharing schemes. A subset C is inaccessible to subsets of a critical set C of Y , called the strongbox of C, may be thought to contain secret

  16. PROGRESS ON A NEW EXPERIMENTAL TEST OF THE GRAVITATIONAL INVERSE-SQUARE LAW

    E-Print Network [OSTI]

    Newman, Riley D.

    1 PROGRESS ON A NEW EXPERIMENTAL TEST OF THE GRAVITATIONAL INVERSE-SQUARE LAW R.M. BONICALZI, P from an oscillating torsion-pendulum experiment searching for gravitational inverse square law Relativity, i.e. Newton's Law of Universal Gravitation. The experiment reported here is designed

  17. Time-independent square patterns in surface-tension-driven Benard convection

    E-Print Network [OSTI]

    Texas at Austin. University of

    Time-independent square patterns in surface-tension-driven Benard convection Michael F. Schatza The transition between hexagonal and square patterns is investigated in laboratory experiments on surface-tension, the transition from hexagons to other patterns was unexplored for the surface-tension-driven regime of Be

  18. Square Kilometre Array: a concept design for Phase 1

    E-Print Network [OSTI]

    Garrett, M A; Deboer, D R; Jonas, J L; Rawlings, S; Schilizzi, R T

    2010-01-01T23:59:59.000Z

    The SKA at mid and low frequencies will be constructed in two distinct phases, the first being a subset of the second. This document defines the main scientific goals and baseline technical concept for the SKA Phase 1 (SKA_1). The major science goals for SKA_1 will be to study the history and role of neutral Hydrogen in the Universe from the dark ages to the present-day, and to employ pulsars as probes of fundamental physics. The baseline technical concept of SKA_1 will include a sparse aperture array operating at frequencies up to 450 MHz, and an array of dishes, initially operating at frequencies up to 3 GHz but capable of 10 GHz in terms of antenna surface accuracy. An associated Advanced Instrumentation Program (AIP) allows further development of new technologies currently under investigation. Construction will take place in 2016-2019 at a total capital cost of 350M\\texteuro, including an element for contingency. The cost estimates of the SKA_1 telescope are now the subject of a more detailed and thorough...

  19. EYE SQUARE GMBH | SCHLESISCHE STR. 29-30 | D-10997 BERLIN | FON +49 30 69 81 44-0 | FAX +49 30 69 81 44-10 | WWW.EYE-SQUARE.COM Stellenangebot

    E-Print Network [OSTI]

    Berlin,Technische Universität

    EYE SQUARE GMBH | SCHLESISCHE STR. 29-30 | D-10997 BERLIN | FON +49 30 69 81 44-0 | FAX +49 30 69 81 44-10 | WWW.EYE-SQUARE.COM Stellenangebot Wer wir sind eye square ist einer der weltweit führenden Bewerbung mit Anschreiben, Lebenslauf und Zeugnissen (als ein pdf-Dokument, max. 2 MB) an: jobs@eye

  20. Pendulum with a square-wave modulated length Eugene I. Butikov

    E-Print Network [OSTI]

    Butikov, Eugene

    active optimal control of pumping and damping is analyzed. Phase locking between the drive: parametric resonance, autoresonance, phase locking, bifurcations, instabil- ity ranges 1 Introduction. Petersburg, Russia Abstract Parametric excitation of a rigid planar pendulum caused by a square

  1. The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies

    E-Print Network [OSTI]

    Goeke, Robert F.

    The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the mid-west of Western Australia, a ...

  2. Predicting Turbulence using Partial Least Squares Regression and an Artificial Neural Network

    E-Print Network [OSTI]

    Lakshmanan, Valliappa

    Predicting Turbulence using Partial Least Squares Regression and an Artificial Neural Network in the dataset. Then, the transformed data are pre- sented to a neural network whose output node has a sigmoid

  3. Hydrothermal syntheses, structures and magnetic properties of two transition metal coordination polymers with a square

    E-Print Network [OSTI]

    Gao, Song

    ; Square grid structure; 1,4-Naphthalenedicarb- oxylic acid 1. Introduction In recent years, great.1. Measurements Elemental analyses were performed with an Elemen- tar Vario EL analyzer. The IR spectrum

  4. Load Forecasting using Fixed-Size Least Squares Support Vector Machines

    E-Print Network [OSTI]

    -SVM formulation, on the other hand, solves a linear sys- tem in dual space under a least-squares cost function [13 series comes from a local low voltage substation in Belgium and it contains 28,000 hourly values

  5. Risk Bounds for Regularized Least-squares Algorithm with Operator-valued kernels

    E-Print Network [OSTI]

    Vito, Ernesto De

    2005-05-16T23:59:59.000Z

    We show that recent results in [3] on risk bounds for regularized least-squares on reproducing kernel Hilbert spaces can be straightforwardly extended to the vector-valued regression setting. We first briefly introduce ...

  6. Photon electroproduction from hydrogen at backward angles and momentum transfer squared of $Q^{2}=1.0Gev^{2}$

    E-Print Network [OSTI]

    Laveissire, G; Jaminion, S; Jutier, C; Todor, L; Di Salvo, R; Van Hoorebeke, L; Alexa, L C; Anderson, B D; Aniol, K A; Arundell, K; Audit, G; Auerbach, L; Baker, F T; Baylac, M; Berthot, J; Bertin, P Y; Bertozzi, W; Bimbot, L; Bglin, W; Brash, E J; Breton, V; Breuer, H; Burtin, E; Calarco, J R; Cardman, L S; Cavata, C; Chang, C C; Chen, J P; Chudakov, E; Cisbani, E; Dale, D S; De Jager, C W; De Leo, R; Deur, A; D'Hose, N; Dodge, G E; Domingo, John J; Elouadrhiri, L; Epstein, M B; Ewell, L A; Finn, J M; Fissum, K G; Fonvieille, H; Fournier, G; Frois, B; Frullani, S; Furget, C; Gao, H; Gao, J; Garibaldi, F; Gasparian, A; Gilad, S; Gilman, R; Glamazdin, A; Glashausser, C; Gmez, J; Gorbenko, V; Grenier, P; Guichon, P A M; Hansen, J O; Holmes, R; Holtrop, M; Howell, C; Huber, G M; Hyde-Wright, C E; Incerti, S; Iodice, M; Jardillier, J; Jones, M K; Kahl, W; Kamalov, S; Kato, S; Katramatou, A T; Kelly, J J; Kerhoas, S; Ketikyan, A; Khayat, M; Kino, K; Kox, S; Kramer, L H; Kumar, K S; Kumbartzki, G; Kuss, M; Leone, A; Le Rose, J J; Liang, M; Lindgren, R A; Liyanage, N K; Lolos, G J; Lourie, R W; Madey, R; Maeda, K; Malov, S; Manley, D M; Marchand, C; Marchand, D; Margaziotis, D J; Markowitz, P; Marroncle, J; Martino, J; McCormick, K; McIntyre, J; Mehrabyan, S S; Merchez, F; Meziani, Z E; Michaels, R; Miller, G W; Mougey, J Y; Nanda, S K; Neyret, D; Offermann, E; Papandreou, Z; Perdrisat, C F; Perrino, R; Petratos, G G; Platchkov, S; Pomatsalyuk, R I; Prout, D L; Punjabi, V A; Pussieux, T; Qumner, G; Ransome, R D; Ravel, O; Real, J S; Renard, F; Roblin, Y; Rowntree, D; Rutledge, G; Rutt, P M; Saha, A; Sait, T; Sarty, A J; Serdarevic, A; Smith, T; Smirnov, G; Soldi, K; Sorokin, P; Souder, P A; Suleiman, R; Templon, J A; Terasawa, T; Tiator, L; Tieulent, R; Tomasi-Gustafsson, E; Tsubota, H; Ueno, H; Ulmer, P E; Urciuoli, G M; Van De Vyver, R; Van, R L J; der Meer; Vernin, P; Vlahovic, B; Voskanyan, H; Voutier, E; Watson, J W; Weinstein, L B; Wijesooriya, K; Wilson, R; Wojtsekhowski, B B; Zainea, D G; Zhang, W M; Zhao, J; Zhou, Z L

    2004-01-01T23:59:59.000Z

    Photon electroproduction from hydrogen at backward angles and momentum transfer squared of $Q^{2}=1.0Gev^{2}$

  7. Turbulent heat transfer and friction in a square channel with discrete rib turbulators

    E-Print Network [OSTI]

    McMillin, Robert Dale

    1989-01-01T23:59:59.000Z

    TURBULENT HEAT TRANSFER AND FRICTION IN A SQUARE CHANNEL WITH DISCRETE RIB TURBULATORS A Thesis by ROBERT DALE iXIGMILLIN Subniitted to the Office of Graduate Studies of Texas AK. M L niversrty in partial fulfillment of the requirements... for the degree of MASTER OF SGIE IGE Deceinber 1989 Major Subject' Mechanical Engineering TURBULENT HEAT TRANSFER AND FRICTION IN A SQUARE CHANNEL WITH DISCRETE RIB TURBULATORS A Thesrs by ROBERT DALE MCMILLI'V Approverl as to style and content...

  8. PIV flow measurements for heat transfer characterization in two-pass square channels with smooth and 90 ribbed walls

    E-Print Network [OSTI]

    Kihm, IconKenneth David

    -pass square channel with a smooth wall and a 90 rib-roughened wall. Detailed averaged velocity distributions enhancements for both smooth and ribbed wall two-pass square channels. The rib-induced flow turbulence distribution in two-pass square channels with smooth and 90 ribbed walls. Han and Zhang [3] studied the effect

  9. Establishing Design Requirements for Energy

    Broader source: Energy.gov [DOE]

    Programming defines details about the project, including square footage, types of building space, and use. The team should make decisions to define the energy needs of the building. Beyond...

  10. Representation of thermal energy in the design process

    E-Print Network [OSTI]

    Roth, Shaun

    1995-01-01T23:59:59.000Z

    The goal of thermal design is to go beyond the comfort zone. In spatial design architects don't just look up square footage requirements and then draw a rectangle that satisfies the givens. There must be an interpretation. ...

  11. Relative Ages of Globular Clusters

    E-Print Network [OSTI]

    Thomas H. Puzia

    2002-10-18T23:59:59.000Z

    Ages of extragalactic globular clusters can provide valuable insights into the formation and evolution of galaxies. In this contribution the photometric methods of age dating old globular cluster systems are summarised. The spectroscopic approach is reviewed with an emphasis of the right choice of age diagnostics. We present a new method of quantifying the relatively best age-sensitive spectroscopic index given the quality of a data set and a certain theoretical stellar synthesis model. The relatively best diagnostic plot is constructed from the set of Lick indices and used to age date globular clusters in several early-type galaxies which are part of a large spectroscopic survey of extragalactic globular cluster systems. We find that, independently of host galaxy, metal-poor ([Fe/H] 8 Gyr) and coeval. Metal-rich clusters show a wide range of ages from ~15 down to a few Gyr.

  12. Nonresidential buildings energy consumption survey: 1979 consumption and expenditures. Part 2. Steam, fuel oil, LPG, and all fuels

    SciTech Connect (OSTI)

    Patinkin, L.

    1983-12-01T23:59:59.000Z

    This report presents data on square footage and on total energy consumption and expenditures for commercial buildings in the contiguous United States. Also included are detailed consumption and expenditures tables for fuel oil or kerosene, liquid petroleum gas (LPG), and purchased steam. Commercial buildings include all nonresidential buildings with the exception of those where industrial activities occupy more of the total square footage than any other type of activity. 7 figures, 23 tables.

  13. AGING FACILITY WORKER DOSE ASSESSMENT

    SciTech Connect (OSTI)

    R.L. Thacker

    2005-03-24T23:59:59.000Z

    The purpose of this calculation is to estimate radiation doses received by personnel working in the Aging Facility performing operations to transfer aging casks to the aging pads for thermal and logistical management, stage empty aging casks, and retrieve aging casks from the aging pads for further processing in other site facilities. Doses received by workers due to aging cask surveillance and maintenance operations are also included. The specific scope of work contained in this calculation covers both collective doses and individual worker group doses on an annual basis, and includes the contributions due to external and internal radiation from normal operation. There are no Category 1 event sequences associated with the Aging Facility (BSC 2004 [DIRS 167268], Section 7.2.1). The results of this calculation will be used to support the design of the Aging Facility and to provide occupational dose estimates for the License Application. The calculations contained in this document were developed by Environmental and Nuclear Engineering of the Design and Engineering Organization and are intended solely for the use of the Design and Engineering Organization in its work regarding facility operation. Yucca Mountain Project personnel from the Environmental and Nuclear Engineering should be consulted before use of the calculations for purposes other than those stated herein or use by individuals other than authorized personnel in Environmental and Nuclear Engineering.

  14. Blind teen-age students' expectations Focus: school-age

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Blind teen-age students' expectations Focus: school-age Topic: What are the changing demands disabled pupils, inclusion increased significantly, particularly in high schools. Blind learners, who used. For this lecture, I will present a few blind students' opinions, which will help building the items for the case

  15. Peculiarities of squaring method applied to construct solutions of the Dirac, Majorana, and Weyl equations

    E-Print Network [OSTI]

    O. V. Veko; V. M. Red'kov

    2015-01-25T23:59:59.000Z

    It is shown that the known method to solve the Dirac equation by means of the squaring method, when relying on the scalar function of the form \\Phi = e^{-i\\epsilon t} e^{ik_{1} x} e^{ik_{2} y} \\sin (kz + \\alpha) leads to a 4-dimensional space of the Dirac solutions. It is shown that so constructed basis is equivalent to the space of the Dirac states relied on the use of quantum numbers k_{1}, k_{2}, \\pm k and helicity operator; linear transformations relating these two spaces are found. Application of the squaring method substantially depends on the choice of representation for the Dirac matrices, some features of this are considered. Peculiarities of applying the squaring method in Majorana representation are investigated as well. The constructed bases are relevant to describe the Casimir effect for Dirac and Weyl fields in the domain restricted by two planes.

  16. More on the Asymmetric Infinite Square Well: Energy Eigenstates with Zero Curvature

    E-Print Network [OSTI]

    L. P. Gilbert; M. Belloni; M. A. Doncheski; R. W. Robinett

    2005-12-19T23:59:59.000Z

    We extend the standard treatment of the asymmetric infinite square well to include solutions that have zero curvature over part of the well. This type of solution, both within the specific context of the asymmetric infinite square well and within the broader context of bound states of arbitrary piecewise-constant potential energy functions, is not often discussed as part of quantum mechanics texts at any level. We begin by outlining the general mathematical condition in one-dimensional time-independent quantum mechanics for a bound-state wave function to have zero curvature over an extended region of space and still be a valid wave function. We then briefly review the standard asymmetric infinite square well solutions, focusing on zero-curvature solutions as represented by energy eigenstates in position and momentum space.

  17. Design Evolution Study - Aging Options

    SciTech Connect (OSTI)

    P. McDaniel

    2002-04-05T23:59:59.000Z

    The purpose of this study is to identify options and issues for aging commercial spent nuclear fuel received for disposal at the Yucca Mountain Mined Geologic Repository. Some early shipments of commercial spent nuclear fuel to the repository may be received with high-heat-output (younger) fuel assemblies that will need to be managed to meet thermal goals for emplacement. The capability to age as much as 40,000 metric tons of heavy metal of commercial spent nuclear he1 would provide more flexibility in the design to manage this younger fuel and to decouple waste receipt and waste emplacement. The following potential aging location options are evaluated: (1) Surface aging at four locations near the North Portal; (2) Subsurface aging in the permanent emplacement drifts; and (3) Subsurface aging in a new subsurface area. The following aging container options are evaluated: (1) Complete Waste Package; (2) Stainless Steel inner liner of the waste package; (3) Dual Purpose Canisters; (4) Multi-Purpose Canisters; and (5) New disposable canister for uncanistered commercial spent nuclear fuel. Each option is compared to a ''Base Case,'' which is the expected normal waste packaging process without aging. A Value Engineering approach is used to score each option against nine technical criteria and rank the options. Open issues with each of the options and suggested future actions are also presented. Costs for aging containers and aging locations are evaluated separately. Capital costs are developed for direct costs and distributable field costs. To the extent practical, unit costs are presented. Indirect costs, operating costs, and total system life cycle costs will be evaluated outside of this study. Three recommendations for aging commercial spent nuclear fuel--subsurface, surface, and combined surface and subsurface are presented for further review in the overall design re-evaluation effort. Options that were evaluated but not recommended are: subsurface aging in a new subsurface area (high cost); surface aging in the complete waste package (risk to the waste package and impact on the Waste Handling Facility); and aging in the stainless steel liner (impact on the waste package design and new high risk operations added to the waste packaging process). The selection of a design basis for aging will be made in conjunction with the other design re-evaluation studies.

  18. Vector meson dominance and deep inelastic scattering at low and medium Q squared

    E-Print Network [OSTI]

    Edgar Bugaev; Boris Mangazeev

    2014-07-09T23:59:59.000Z

    We argued that deep inelastic scattering (DIS) at small values of Q squared is an essentially nonperturbative process and can be described, partially at least, by the vector meson dominance (VMD) model. We showed by the straightforward calculation that VMD model alone can successfully explain data on structure functions of DIS in a broad interval of x (5e-2 - 1e-4) for the region Q squared < 1 GeV squared. For a description of data at larger Q squared we used the two-component (VMD + perturbative QCD) approach. We showed that these two components can be separated if VMD is used in the aligned jet version. We took into account, in calculations of VMD component of structure functions, the excited states of the rho-meson and nondiagonal transitions between different members of the rho-meson family. Amplitudes of these transitions were obtained using a formalism of the light-front Bethe-Salpeter equation and the method of diffraction-scattering eigenstates. The perturbative QCD component was calculated using a framework of the colour dipole model with the dipole cross section having a Regge-type energy dependence. We presented results of the detailed comparison of our predictions with experimental data for structure functions of the nucleon. We obtained also approximate predictions for the structure functions in the region of very small x, up to 1e-9, and showed that nonperturbative component at such values of x is still relatively large and must be taken into account if Q squared is about few GeV squared or less.

  19. Advanced Online Flux Mapping of CANDU PHWR by Least-Squares Method

    SciTech Connect (OSTI)

    Hong, In Seob [Seoul National University (Korea, Republic of); Kim, Chang Hyo [Seoul National University (Korea, Republic of); Suk, Ho Chun [Korea Atomic Energy Research Institute (Korea, Republic of)

    2005-07-15T23:59:59.000Z

    A least-squares method that solves both the core neutronics design equations and the in-core detector response equations on the least-squares principle is presented as a new advanced online flux-mapping method for CANada Deuterium Uranium (CANDU) pressurized heavy water reactors (PHWRs). The effectiveness of the new flux-mapping method is examined in terms of online flux-mapping calculations with numerically simulated true flux distribution and detector signals and those with the actual core-follow data for the Wolsong CANDU PHWRs in Korea. The effects of core neutronics models as well as the detector failures and uncertainties of measured detector signals on the effectiveness of the least-squares flux-mapping calculations are also examined.The following results are obtained. The least-squares method predicts the flux distribution in better agreement with the simulated true flux distribution than the standard core neutronics calculations by the finite difference method (FDM) computer code without using the detector signals. The adoption of the nonlinear nodal method based on the unified nodal method formulation instead of the FDM results in a significant improvement in prediction accuracy of the flux-mapping calculations. The detector signals estimated from the least-squares flux-mapping calculations are much closer to the measured detector signals than those from the flux synthesis method (FSM), the current online flux-mapping method for CANDU reactors. The effect of detector failures is relatively small so that the plant can tolerate up to 25% of detector failures without seriously affecting the plant operation. The detector signal uncertainties aggravate accuracy of the flux-mapping calculations, yet the effects of signal uncertainties of the order of 1% standard deviation can be tolerable without seriously degrading the prediction accuracy of the least-squares method. The least-squares method is disadvantageous because it requires longer CPU time than the existing FSM. Considering ever-increasing computer speed and the improved operational safety margin of CANDU reactors gained by accurate flux-mapping calculations, however, it is concluded that the least-squares method presents an effective alternative to the existing flux-mapping method for CANDU reactors.

  20. Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale

    E-Print Network [OSTI]

    D. J. Kapner; T. S. Cook; E. G. Adelberger; J. H. Gundlach; B. R. Heckel; C. D. Hoyle; H. E. Swanson

    2006-11-14T23:59:59.000Z

    We conducted three torsion-balance experiments to test the gravitational inverse-square law at separations between 9.53 mm and 55 micrometers, probing distances less than the dark-energy length scale $\\lambda_{\\rm d}=\\sqrt[4]{\\hbar c/\\rho_{\\rm d}}\\approx 85 \\mu$m. We find with 95% confidence that the inverse-square law holds ($|\\alpha| \\leq 1$) down to a length scale $\\lambda = 56 \\mu$m and that an extra dimension must have a size $R \\leq 44 \\mu$m.

  1. aging society aging: Topics by E-print Network

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

    3 Age CiteSeer Summary: Success in school can be a positive counterweight to the abuse, neglect, separation, and impermanence experienced by the more than 400,000 U.S....

  2. Kinetic theory for dilute cohesive granular gases with a square well potential

    E-Print Network [OSTI]

    Satoshi Takada; Kuniyasu Saitoh; Hisao Hayakawa

    2015-06-15T23:59:59.000Z

    We develop the kinetic theory of dilute cohesive granular gases in which the attractive part is described by a square well potential. We derive the hydrodynamic equations from the kinetic theory with the microscopic expressions for the dissipation rate and the transport coefficients. We check the validity of our theory by performing the direct simulation Monte Carlo.

  3. * 2048 by 2048 pixel format * 13.5 mm square pixels

    E-Print Network [OSTI]

    FEATURES * 2048 by 2048 pixel format * 13.5 mm square pixels * Image area 27.6 x 27.6 mm * Back protection * Very low noise output amplifiers * Dual responsivity output amplifiers * Gated dump drain of the CCD42 family of CCD sensors has full-frame architecture. Back illumination technology, in combination

  4. WCOM'2009/MATH Defeng Sun/NUS 1 A Proximal Point Method for Matrix Least Squares

    E-Print Network [OSTI]

    Sun, Defeng

    WCOM'2009/MATH Defeng Sun/NUS 1 ' & $ % A Proximal Point Method for Matrix Least Squares Problem with Nuclear Norm Regularization Defeng Sun Department of Mathematics National University of Singapore May 2, 2009 Joint work with Kaifeng Jiang and Kim Chuan Toh #12;WCOM'2009/MATH Defeng Sun/NUS 2 ' & $ % Let Sn

  5. Nanjing, July 26, 2008 Defeng Sun 1 Calibrating Least Squares Covariance Matrix Problems

    E-Print Network [OSTI]

    Sun, Defeng

    Nanjing, July 26, 2008 Defeng Sun 1 ' & $ % Calibrating Least Squares Covariance Matrix Problems with Equality and Inequality Constraints Defeng Sun Department of Mathematics National University of Singapore to Professor Bingsheng He #12;Nanjing, July 26, 2008 Defeng Sun 2 ' & $ % Let Sn be the set of all real

  6. A Generalized Formula for Converting Chi-Square Tests to Effect Sizes for Meta-Analysis

    E-Print Network [OSTI]

    Rosenberg, Michael S.

    A Generalized Formula for Converting Chi-Square Tests to Effect Sizes for Meta-Analysis Michael S Sciences, Arizona State University, Tempe, Arizona, United States of America Abstract The common formula of the effect size. A corrected formula is provided. Citation: Rosenberg MS (2010) A Generalized Formula

  7. Circular and Square Concrete Columns Externally Confined by CFRP Composite: Experimental

    E-Print Network [OSTI]

    Boyer, Edmond

    testing of the FRP composite. In existing models for FRP-confined concrete, it is commonly assumedChapter 6 Circular and Square Concrete Columns Externally Confined by CFRP Composite: Experimental limited. This field remains in its developmental stages and more testing and analysis are needed

  8. Bulk, surface and corner free energy series for the chromatic polynomial on the square and triangular

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Bulk, surface and corner free energy series for the chromatic polynomial on the square, surface and corner free energies of the chromatic polynomial. This extends the existing series expression for the bulk free energy (to order q-40 ), and we are able to conjecture exact product formulae

  9. Canonical Correlation Analysis for Multilabel Classification: A Least-Squares Formulation,

    E-Print Network [OSTI]

    Ye, Jieping

    --Canonical Correlation Analysis (CCA) is a well-known technique for finding the correlations between two sets1 Canonical Correlation Analysis for Multilabel Classification: A Least-Squares Formulation, Extensions, and Analysis Liang Sun, Shuiwang Ji, Student Member, IEEE, and Jieping Ye, Member, IEEE Abstract

  10. Least Squares Linear Discriminant Analysis Jieping Ye jieping.ye@asu.edu

    E-Print Network [OSTI]

    Liu, Huan

    Analysis (LDA) is a well-known method for dimensionality reduc- tion and classification. LDA in the binaryLeast Squares Linear Discriminant Analysis Jieping Ye jieping.ye@asu.edu Department of Computer stud- ies have shown certain relationship between multivariate linear regression and LDA for the multi

  11. Speech enhancement using a minimum mean-square error short-time spectral modulation magnitude estimator

    E-Print Network [OSTI]

    Speech enhancement using a minimum mean-square error short-time spectral modulation magnitude In this paper we investigate the enhancement of speech by applying MMSE short-time spectral magnitude estimation on the quality of enhanced speech, and find that this method works better with speech uncertainty. Finally we

  12. Levy path integral approach to the solution of the fractional Schrdinger equation with infinite square well

    E-Print Network [OSTI]

    Dong Jianping

    2013-01-14T23:59:59.000Z

    The solution to the fractional Schr\\"odinger equation with infinite square well is obtained in this paper, by use of the L\\'evy path integral approach. We obtain the even and odd parity wave functions of this problem, which are in accordance with those given by Laskin in [Chaos 10 (2000), 780--790].

  13. Radio Number for Square of Cycles Daphne Der-Fen Liu

    E-Print Network [OSTI]

    Liu, Daphne Der-Fen

    Radio Number for Square of Cycles Daphne Der-Fen Liu Melanie Xie Department of Mathematics and v. A radio labelling for G is a function f that assigns to each vertex a non- negative integer. The span of f is the difference of the maximum and the minimum labels assigned. The radio number of G

  14. 7. Biharmonic equation The biharmonic equation is the \\square of the Laplace equation",

    E-Print Network [OSTI]

    Trefethen, Nick

    .824 kHz Fig. 1: Chladni gures for a square plate The eigenvalues and eigenfunctions of the biharmonic of such a plate. The physicist and astronomer Ernst Chladni (1756{1827) carried out a famous series of ex in various modes. The resulting patterns are known as Chladni gures and some results from an experiment

  15. Gene Feature Extraction Using T-Test Statistics and Kernel Partial Least Squares

    E-Print Network [OSTI]

    Kwok, James Tin-Yau

    Gene Feature Extraction Using T-Test Statistics and Kernel Partial Least Squares Shutao Li1 , Chen Clear Water Bay, Hong Kong shutao li@yahoo.com.cn, lc337199@sina.com, jamesk@cs.ust.hk Abstract. In this paper, we propose a gene extraction method by us- ing two standard feature extraction methods, namely

  16. SD-Squared: On the Association Between Semantic Dementia and Surface Dyslexia

    E-Print Network [OSTI]

    Plaut, David C.

    SD-Squared: On the Association Between Semantic Dementia and Surface Dyslexia Anna M. Woollams, which compromises semantic knowledge, should be accompanied by surface dyslexia, a frequency of semantic degradation and the severity of surface dyslexia. The authors evaluated these claims

  17. All proper normal extensions of S5{square have the polynomial size model property

    E-Print Network [OSTI]

    Amsterdam, University of

    All proper normal extensions of S5{square have the polynomial size model property Nick extensions of the bi-modal system S5 2 have the poly-size model property. In fact, every normal proper extension L of S5 2 is complete with respect to a class of #12;nite frames FL . To each such class

  18. Predicting Turbulence Using Partial Least Squares Regression and an Artificial Neural Network

    E-Print Network [OSTI]

    Lakshmanan, Valliappa

    Predicting Turbulence Using Partial Least Squares Regression and an Artificial Neural Network #12;Neural Network Neural Network Architecture 6 inputs (the 6 transformed components) 1 output (0 Lakshmanan et. al (OU/NSSL) PLS and NN 8th Conf. on AI, Atlanta, GA 9 / 15 #12;Neural Network Validation

  19. "Least Squares Fitting" Using Artificial Neural Networks YARON DANON and MARK J. EMBRECHTS

    E-Print Network [OSTI]

    Danon, Yaron

    "Least Squares Fitting" Using Artificial Neural Networks YARON DANON and MARK J. EMBRECHTS process changes the internal parameters (weights) of the network such that the neural net can represent a backpropagation fit to various continuous functions will be presented, showing properties of neural network fitted

  20. FIRST-ORDER SYSTEM LEAST SQUARES (FOSLS) FOR GEOMETRICALLY NONLINEAR ELASTICITY

    E-Print Network [OSTI]

    McCormick, Steve

    and a consti- tutive equation. The equilibrium equation and associated boundary conditions relate a balance of nonlinearity into the equations of elasticity. The constitutive equation, or material law as it is sometimes-squares (FOSLS) method to approximate the solution to the equations of geometrically nonlinear elasticity in two

  1. 1128 volume 27 number 12 december 2009 nature biotechnology square meter per day of algae containing

    E-Print Network [OSTI]

    Cai, Long

    1128 volume 27 number 12 december 2009 nature biotechnology square meter per day of algae, such as triglycerides from algae or cellulosic biomass from higher plants, as feedstocks for biofuel production. The algal program sought to develop high-oil-content algae that grow at very fast rates. In our report

  2. Transport of bubbles in square microchannels Thomas Cubaud and Chih-Ming Ho

    E-Print Network [OSTI]

    Cubaud, Thomas

    for portable microfluidic devices where two-phase flow is involved such as in a microdirect methanol fuel cell- cal, petroleum, and power generation industries (such as nuclear power plants and micro-fuel cellsTransport of bubbles in square microchannels Thomas Cubaud and Chih-Ming Ho Mechanical

  3. Penalized Weighted Least-Squares Approach for Low-Dose X-Ray Computed Tomography

    E-Print Network [OSTI]

    Penalized Weighted Least-Squares Approach for Low-Dose X- Ray Computed Tomography Jing Wang*1, noise-resolution tradeoff, ROC curve. 1. INTRODUCTION Low-dose X-ray computed tomography (CT) imaging Military Medical University, Xi'an, Shaanxi 710032, China ABSTRACT The noise of low-dose computed

  4. Use of Least Means Squares Filter in Control of Optical Beam Jitter

    E-Print Network [OSTI]

    Use of Least Means Squares Filter in Control of Optical Beam Jitter R. Joseph Watkins U.S. Naval 93943 DOI: 10.2514/1.26778 Meeting optical beam jitter requirements is becoming a challenging problem for several space programs. A laser beam jitter control test bed has been developed at the Naval Postgraduate

  5. A new quasi-Monte Carlo technique based on nonnegative least squares and

    E-Print Network [OSTI]

    De Marchi, Stefano

    A new quasi-Monte Carlo technique based on nonnegative least squares and approximate Fekete points Claudia Bittantea , Stefano De Marchia, , Alvise Sommarivaa aUniversity of Padova, Department of the quasi-Monte Carlo method. The method, simple in its formulation, be- comes computationally inefficient

  6. Application of Least Squares MPE technique in the reduced order modeling of electrical circuits

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    fast analysis of the circuit designs and reduce the manufacturing cost and time. Typical dimensions models [12]. Due to the growing complexities in circuit designs, linear models are often inadequateApplication of Least Squares MPE technique in the reduced order modeling of electrical circuits

  7. Particle Physics Implications of a Recent Test of the Gravitational Inverse Square Law

    E-Print Network [OSTI]

    E. G. Adelberger; B. R. Heckel; S. Hoedl; C. D. Hoyle; D. J. Kapner; A. Upadhye

    2007-02-07T23:59:59.000Z

    We use data from our recent search for violations of the gravitational inverse-square law to constrain dilaton, radion and chameleon exchange forces as well as arbitrary vector or scalar interactions. We test the interpretation of the PVLAS effect and a conjectured ``fat graviton'' scenario and constrain the $\\gamma_5$ couplings of pseuodscalar bosons and arbitrary power-law interactions.

  8. Inertial Particle Dispersion in the Lagrangian Wake of a Square Cylinder

    E-Print Network [OSTI]

    Jacobs, Gustaaf "Guus"

    in Fluent at a Reynolds number of 150 ensuring a periodic Karman street in the cylinder's wake. The traces, inertial particle transport and entrainment in the vortex-dominated wake of a square cylinder placed between large coherent vortex structures. With increased blockage, transport barriers form of the walls

  9. An assessment of least squares finite element models with applications to problems in heat transfer and solid mechanics

    E-Print Network [OSTI]

    Pratt, Brittan Sheldon

    2008-10-10T23:59:59.000Z

    the residual. The least squares method is a technique that deter- mines ?j such that the integral of the square of the residual is a minimum. The integral of the square of the residual as given by I(?j) = integraldisplay L 0 R2 dx (1.4) 3 which is called... the least squares functional. The necessary condition for a minimum of I is that its first derivative with respect to ?1, ?2, , ?n is zero: 0 = ?I(?j) ? ?I?? i = 2 integraldisplay L 0 R ?R?? i dx, for i= 1,2,,n (1.5) C. Present Study The primary...

  10. For further information or photos/b-roll footage of timber tracking systems, contact

    E-Print Network [OSTI]

    RELEASE ON 23 MARCH 2007 Effort to Fight Illegal Logging Intensifies as China's New Interest In Africa a sophisticated procurement system that allows its member companies, like leading home improvement retailers B community rights and protect biodiversity. "Tropical forest devastation by illegal logging is a complex

  11. Hanford F Reactor Inspection B-roll footage | Department of 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 Power AdministrationField8,Dist.NewofGeothermal848 UnlimitedIntegrated DisposalWaste

  12. U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory and

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial602 1,397 125 Q 69 0.11 0.09 0.01Reports RailNatural6

  13. U.S. Footage Drilled for Crude Oil Developmental Wells (Thousand Feet)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S. Coalbedavailable6:Developmental Wells

  14. U.S. Footage Drilled for Crude Oil Exploratory Wells (Thousand Feet)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S. Coalbedavailable6:Developmental Wells Wells

  15. U.S. Footage Drilled for Crude Oil Exploratory and Developmental Wells

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S. Coalbedavailable6:Developmental Wells

  16. U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Developmental

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S. Coalbedavailable6:Developmental WellsWells

  17. U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory Wells

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S. Coalbedavailable6:Developmental

  18. U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory and

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S. Coalbedavailable6:DevelopmentalDevelopmental

  19. U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory and

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

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

  20. U.S. Footage Drilled for Dry Developmental Wells (Thousand Feet)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S.Developmental Wells (Thousand Feet) U.S.

  1. U.S. Footage Drilled for Dry Exploratory Wells (Thousand Feet)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S.Developmental Wells (Thousand Feet) U.S. Wells

  2. U.S. Footage Drilled for Dry Exploratory and Developmental Wells (Thousand

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S.Developmental Wells (Thousand Feet) U.S.

  3. U.S. Footage Drilled for Natural Gas Developmental Wells (Thousand Feet)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S.Developmental Wells (Thousand Feet)

  4. U.S. Footage Drilled for Natural Gas Exploratory Wells (Thousand Feet)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S.Developmental Wells (Thousand Feet) Wells

  5. U.S. Footage Drilled for Natural Gas Exploratory and Developmental Wells

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion Cubic Feet) U.S.Developmental Wells (Thousand Feet)

  6. Cell Senescence: Aging and Cancer

    ScienceCinema (OSTI)

    Campisi, Judith

    2013-05-29T23:59:59.000Z

    Scientists have identified a molecular cause behind the ravages of old age and in doing so have also shown how a natural process for fighting cancer in younger persons can actually promote cancer in older individuals.

  7. Understory vegetation 3 years after implementing uneven-aged silviculture in a shortleaf pine-oak stand. Forest Service research paper

    SciTech Connect (OSTI)

    Shelton, M.G.; Murphy, P.A.

    1997-09-01T23:59:59.000Z

    The effects of retaining overstory hardwoods on understory vegetation were determined after implementing uneven-aged silviculture using single-tree selection in a shortleaf pin-oak stand (Pinus echinata Mill. and Quercus spp.) in the Ouachita Mountains. Treatments were the following hardwood basal areas (square feet per acre) and spatial arrangement: 0, 15-grouped, 15 scattered, 30-scattered, and untreated control.

  8. Malcolm Guite Poets in Age

    E-Print Network [OSTI]

    Robertson, Stephen

    Malcolm Guite Poets in Age or A Study of Reading Habits At first I used to wish that I were Keats passing bell is rung. But now I need the poets who grew old And wore the bottoms of their trousers rolled of pure gold. I need the poets now, who match my age, Like Coleridge I could become a sage, And I bet I

  9. THE AGE OF PLASTIC INGENUITY + RESPONSIBILITY

    E-Print Network [OSTI]

    Mathis, Wayne N.

    THE AGE OF PLASTIC INGENUITY + RESPONSIBILITY An Interdisciplinary Symposium Stone Age, Bronze Age, Iron Age...and now the Age of Plastic. The Smithsonian Institution is leveraging its collections--arguably the world's greatest repository of plastic material culture--to investigate the significance of plastic, its

  10. DOI 10.1007/s10994-013-5423-y Least-squares independence regression for non-linear

    E-Print Network [OSTI]

    Kaski, Samuel

    Mach Learn DOI 10.1007/s10994-013-5423-y Least-squares independence regression for non-linear 2011 / Accepted: 9 November 2013 The Author(s) 2013 Abstract The discovery of non-linear causal method. Keywords Causal inference Non-linear Non-Gaussian Squared-loss mutual information Least

  11. Speech Enhancement of Spectral Magnitude Bin Trajectories using Gaussian Mixture-Model based Minimum Mean-Square Error Estimators

    E-Print Network [OSTI]

    Speech Enhancement of Spectral Magnitude Bin Trajectories using Gaussian Mixture-Model based mean-square error es- timators have been applied to speech enhancement in the tem- poral, transform (e estimator for 8 kHz telephone-quality speech. Index Terms: Speech enhancement, minimum mean-square er- ror

  12. The distribution of natural numbers divisible by 2,3,5,11,13 and 17 on the Square Root Spiral

    E-Print Network [OSTI]

    Harry K. Hahn

    2008-01-29T23:59:59.000Z

    The natural numbers divisible by the Prime Factors 2, 3, 5, 11, 13 and 17 lie on defined spiral graphs, which run through the Square Root Spiral. A mathematical analysis shows, that these spiral graphs are defined by specific quadratic polynomials. Basically all natural number which are divisible by the same prime factor lie on such spiral graphs. And these spiral graphs can be assigned to a certain number of Spiral Graph Systems, which have a defined spatial orientation to each other. This document represents a supplementation to my detailed introduction study to the Square Root Spiral, and it contains the missing diagrams and analyses, showing the distribution of the natural numbers divisible by 2, 3, 5, 11, 13 and 17 on the Square Root Spiral. My introduction study to the Square Root Spiral can be found in the arxiv-archive. The title of this study : The ordered distribution of the natural numbers on the Square Root Spiral.

  13. Method for exploiting bias in factor analysis using constrained alternating least squares algorithms

    DOE Patents [OSTI]

    Keenan, Michael R. (Albuquerque, NM)

    2008-12-30T23:59:59.000Z

    Bias plays an important role in factor analysis and is often implicitly made use of, for example, to constrain solutions to factors that conform to physical reality. However, when components are collinear, a large range of solutions may exist that satisfy the basic constraints and fit the data equally well. In such cases, the introduction of mathematical bias through the application of constraints may select solutions that are less than optimal. The biased alternating least squares algorithm of the present invention can offset mathematical bias introduced by constraints in the standard alternating least squares analysis to achieve factor solutions that are most consistent with physical reality. In addition, these methods can be used to explicitly exploit bias to provide alternative views and provide additional insights into spectral data sets.

  14. Square Kilometer Array Telescope - Precision Reference Frequency Synchronisation via 1f-2f Dissemination

    E-Print Network [OSTI]

    Wang, B; Gao, C; Bai, Y; Dong, J W; Wang, L J

    2015-01-01T23:59:59.000Z

    The Square Kilometer Array (SKA) is an international effort to build the world's largest radio telescope, with one square kilometer collecting area. Besides its ambitious scientific objectives, such as probing the cosmic dawn and cradle of life, SKA also demands several revolutionary technological breakthroughs, with ultra-high precision synchronisation of the frequency references for thousands of antennas being one of them. In this report, aimed at applications to SKA, we demonstrate a frequency reference synchronization and dissemination scheme with the phase noise compensation function placed at the client site. Hence, one central hub can be linked to a large number of client sites, forming a star-shaped topology. As a performance test, the 100 MHz reference signal from a Hydrogen maser clock is disseminated and recovered at two remote sites. Phase noise characteristics of the recovered reference frequency signal coincides with that of the hydrogen-maser source and satisfies SKA requirement.

  15. Pragmatic SAE procedure in the Schrodinger equation for the inverse-square-like potentials

    E-Print Network [OSTI]

    Nadareishvili, Teimuraz

    2012-01-01T23:59:59.000Z

    The Self-Adjoint Extension in the Schrodinger equation for potentials behaved as an attractive inverse square at the origin is critically reviewed. Original results are also presented. It is shown that the additional non-regular solutions must be retained for definite interval of parameters, which requires a necessity of performing a Self-Adjoint Extension (SAE) procedure of radial Hamiltonian.The Pragmatic approach is used and some of its consequences are considered for wide class of transitive potentials. Our consideration is based on the established earlier by us a boundary condition for the radial wave function and the corresponding consequences are derived. Various relevant applications are presented as well. They are: inverse square potential in the Schrodinger equation is solved when the additional non-regular solution is retained. Valence electron model and the Klein-Gordon equation with the Coulomb potential is considered and the hydrino -like levels are discussed.

  16. Pragmatic SAE procedure in the Schrodinger equation for the inverse-square-like potentials

    E-Print Network [OSTI]

    Teimuraz Nadareishvili; Anzor Khelashvili

    2012-10-14T23:59:59.000Z

    The Self-Adjoint Extension in the Schrodinger equation for potentials behaved as an attractive inverse square at the origin is critically reviewed. Original results are also presented. It is shown that the additional non-regular solutions must be retained for definite interval of parameters, which requires a necessity of performing a Self-Adjoint Extension (SAE) procedure of radial Hamiltonian.The Pragmatic approach is used and some of its consequences are considered for wide class of transitive potentials. Our consideration is based on the established earlier by us a boundary condition for the radial wave function and the corresponding consequences are derived. Various relevant applications are presented as well. They are: inverse square potential in the Schrodinger equation is solved when the additional non-regular solution is retained. Valence electron model and the Klein-Gordon equation with the Coulomb potential is considered and the hydrino -like levels are discussed.

  17. t s + t w m 2D Square Mesh with Wraparound

    E-Print Network [OSTI]

    Zhang, Jun

    t s + t w m 2D Square Mesh with Wraparound: 3.5 AlltoAll Personalized Communication 0 1 2 3 4 7 5 of the messages t s 3.5 AlltoAll Personalized Communication the alltoall broadcast on a hypercube 3.5 AlltoAll Personalized Communication ( t s + 1 2 t w ) mp ( p 1 ) 3.5.2. Cut

  18. Domain wall displacement in Py square ring for single nanometric magnetic bead detection

    E-Print Network [OSTI]

    Vavassori, P; Gobbi, M; Donolato, M; Cantoni, M; Bertacco, R

    2008-01-01T23:59:59.000Z

    A new approach based on the domain wall displacement in confined ferromagnetic nanostructures for attracting and sensing a single nanometric magnetic particles is presented. We modeled and experimentally demonstrated the viability of the approach using an anisotropic magnetoresistance device made by a micron-size square ring of Permalloy designed for application in magnetic storage. This detection concept can be suitable to biomolecular recognition, and in particular to single molecule detection.

  19. Coherent and generalized intelligent states for infinite square well potential and nonlinear oscillators

    E-Print Network [OSTI]

    A. H. El Kinani; M. Daoud

    2003-12-13T23:59:59.000Z

    This article is an illustration of the construction of coherent and generalized intelligent states which has been recently proposed by us for an arbitrary quantum system $[ 1] $. We treat the quantum system submitted to the infinite square well potential and the nonlinear oscillators. By means of the analytical representation of the coherent states \\`{a} la Gazeau-Klauder and those \\`{a} la Klauder-Perelomov, we derive the generalized intelligent states in analytical ways.

  20. Complete Set of Inner Products for a Discrete PT-symmetric Square-well Hamiltonian

    E-Print Network [OSTI]

    Miloslav Znojil

    2009-11-02T23:59:59.000Z

    A discrete $N-$point Runge-Kutta version $H^{(N)}({\\lambda})$ of one of the simplest non-Hermitian square-well Hamiltonians with real spectrum is studied. A complete set of its possible hermitizations (i.e., of the eligible metrics $\\Theta^{(N)}({\\lambda})$ defining its non-equivalent physical Hilbert spaces of states) is constructed, in closed form, for any coupling ${\\lambda}\\in (-1,1)$ and any matrix dimension $N$.

  1. On F-Squares and their Critical Sets L F Fitina, Jennifer Seberry

    E-Print Network [OSTI]

    Seberry, Jennifer

    (F ) will denote the size of a critical set. We denote by scr(F (n; #11; 0 ; #11; 1 ; : : : ; #11; v 1 )) the size; : : : ; 1; n i)) where there are i zeroes satis#12;es scr(F (n; 1; : : : ; n i)) #20; scr(F (n; 1; : : : ; 1; n i + 1)) #20; scr(F (n; 1; 1; : : : ; 1)) = scs(n): Critical sets of latin squares were #12;rst

  2. Fast Combinatorial Algorithm for the Solution of Linearly Constrained Least Squares Problems

    DOE Patents [OSTI]

    Van Benthem, Mark H. (Middletown, DE); Keenan, Michael R. (Albuquerque, NM)

    2008-11-11T23:59:59.000Z

    A fast combinatorial algorithm can significantly reduce the computational burden when solving general equality and inequality constrained least squares problems with large numbers of observation vectors. The combinatorial algorithm provides a mathematically rigorous solution and operates at great speed by reorganizing the calculations to take advantage of the combinatorial nature of the problems to be solved. The combinatorial algorithm exploits the structure that exists in large-scale problems in order to minimize the number of arithmetic operations required to obtain a solution.

  3. Semi-flexible interacting self-avoiding trails on the square lattice

    E-Print Network [OSTI]

    A Bedini; A L Owczarek; T Prellberg

    2012-10-30T23:59:59.000Z

    Self-avoiding walks self-interacting via nearest neighbours (ISAW) and self-avoiding trails interacting via multiply-visited sites (ISAT) are two models of the polymer collapse transition of a polymer in dilute solution. On the square lattice it has been established numerically that the collapse transition of each model lies in a different universality class. It has been shown that by adding stiffness to the ISAW model a second low temperature phase eventuates and a more complicated phase diagram ensues with three types of transition that meet at a multi-critical point. For large enough stiffness the collapse transition becomes first-order. Interestingly, a phase diagram of a similar structure has been seen to occur in an extended ISAT model on the triangular lattice without stiffness. It is therefore of interest to see the effect of adding stiffness to the ISAT model. We have studied by computer simulation a generalised model of self-interacting self-avoiding trails on the square lattice with a stiffness parameter added. Intriguingly, we find that stiffness does not change the order of the collapse transition for ISAT on the square lattice for a very wide range of stiffness weights. While at the lengths considered there are clear bimodal distributions for very large stiffness, our numerical evidence strongly suggests that these are simply finite-size effects associated with a crossover to a first-order phase transition at infinite stiffness.

  4. Sum--of--squares results for polynomials related to the Bessis--Moussa--Villani conjecture

    E-Print Network [OSTI]

    Benoit Collins; Kenneth J. Dykema; Francisco Torres-Ayala

    2010-03-27T23:59:59.000Z

    We show that the polynomial S_{m,k}(A,B), that is the sum of all words in noncommuting variables A and B having length m and exactly k letters equal to B, is not equal to a sum of commutators and Hermitian squares in the algebra R where X^2=A and Y^2=B, for all even values of m and k with 6 Bessis--Moussa--Villani conjecture, which asks whether the trace of S_{m,k}(A,B)) is nonnegative for all positive semidefinite matrices A and B. These results eliminate the possibility of using "descent + sum-of-squares" to prove the BMV conjecture. We also show that S_{m,4}(A,B) is equal to a sum of commutators and Hermitian squares in R when m is even and not a multiple of 4, which implies that the trace of S_{m,4}(A,B) is nonnegative for all Hermitian matrices A and B, for these values of m.

  5. Transportation, Aging and Disposal Canister System Performance...

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

    This document provides specifications for selected system components of the Transportation, Aging and Disposal (TAD) canister-based system. Transportation, Aging and Disposal...

  6. June 17, 2013 Symposium on Aging

    E-Print Network [OSTI]

    Church, George M.

    to forestall and treat diseases of aging such as diabetes, cancer, Alzheimer's and heart disease. Today

  7. advanced grandparental age: Topics by E-print Network

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

    In most animals, advancing age is accompanied by the deteriorative process of aging (senescence). Aging is the main cause of severe illness and death in humans aging is...

  8. advancing paternal age: Topics by E-print Network

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

    In most animals, advancing age is accompanied by the deteriorative process of aging (senescence). Aging is the main cause of severe illness and death in humans aging is...

  9. advanced paternal age: Topics by E-print Network

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

    In most animals, advancing age is accompanied by the deteriorative process of aging (senescence). Aging is the main cause of severe illness and death in humans aging is...

  10. Chelation: A Fundamental Mechanism of Action of AGE Inhibitors...

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

    Mechanism of Action of AGE Inhibitors, AGE Breakers, and Other Inhibitors of Diabetes Complications. Chelation: A Fundamental Mechanism of Action of AGE Inhibitors, AGE...

  11. SPARSE REPRESENTATIONS WITH DATA FIDELITY TERM VIA AN ITERATIVELY REWEIGHTED LEAST SQUARES ALGORITHM

    SciTech Connect (OSTI)

    WOHLBERG, BRENDT [Los Alamos National Laboratory; RODRIGUEZ, PAUL [Los Alamos National Laboratory

    2007-01-08T23:59:59.000Z

    Basis Pursuit and Basis Pursuit Denoising, well established techniques for computing sparse representations, minimize an {ell}{sup 2} data fidelity term subject to an {ell}{sup 1} sparsity constraint or regularization term on the solution by mapping the problem to a linear or quadratic program. Basis Pursuit Denoising with an {ell}{sup 1} data fidelity term has recently been proposed, also implemented via a mapping to a linear program. They introduce an alternative approach via an iteratively Reweighted Least Squares algorithm, providing greater flexibility in the choice of data fidelity term norm, and computational advantages in certain circumstances.

  12. FREQFIT: Computer program which performs numerical regression and statistical chi-squared goodness of fit analysis

    SciTech Connect (OSTI)

    Hofland, G.S.; Barton, C.C.

    1990-10-01T23:59:59.000Z

    The computer program FREQFIT is designed to perform regression and statistical chi-squared goodness of fit analysis on one-dimensional or two-dimensional data. The program features an interactive user dialogue, numerous help messages, an option for screen or line printer output, and the flexibility to use practically any commercially available graphics package to create plots of the program`s results. FREQFIT is written in Microsoft QuickBASIC, for IBM-PC compatible computers. A listing of the QuickBASIC source code for the FREQFIT program, a user manual, and sample input data, output, and plots are included. 6 refs., 1 fig.

  13. Lower bound on the mean square displacement of particles in the hard disk model

    E-Print Network [OSTI]

    Thomas Richthammer

    2015-04-30T23:59:59.000Z

    The hard disk model is a 2D Gibbsian process of particles interacting via pure hard core repulsion. At high particle density the model is believed to show orientational order, however, it is known not to exhibit positional order. Here we investigate to what extent particle positions may fluctuate. We consider a finite volume version of the model in a box of dimensions $2n \\times 2n$ with arbitrary boundary configuration,and we show that the mean square displacement of particles near the center of the box is bounded from below by $c \\log n$. The result generalizes to a large class of models with fairly arbitrary interaction.

  14. Sum--of--squares results for polynomials related to the Bessis--Moussa--Villani conjecture

    E-Print Network [OSTI]

    Collins, Benoit; Torres-Ayala, Francisco

    2009-01-01T23:59:59.000Z

    We show that the polynomial S_{m,k}(A,B), that is the sum of all words in noncommuting variables A and B having length m and exactly k letters equal to B, is not equal to a sum of commutators and Hermitian squares in the algebra R where X^2=A and Y^2=B, for all even values of m and k with 6 when m is even and not a multiple of 4, which implies that the trace of S_{m,4}(A,B) is nonnegative for all Hermitian matrices A and B, for these values of m.

  15. Heat transfer and pressure drop in square duct with two opposite repeated rib-roughened walls

    E-Print Network [OSTI]

    Lei, Chiang-Kuo

    1983-01-01T23:59:59.000Z

    were on ribbed sur- faces. All thermocouples were constructed of 0. 05 cm copper-constantant wire. Five pressure taps along the test section were used for the static pressure drop measurements across the test duct. Three were on the smooth surface...HEAT TRANSFER AND PRESSURE DROP IN SQUARE DUCT WITH TWO OPPOSITE REPEATED RIB-ROUGHENED WALLS A Thesis CHIANG-KUO LEI Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER...

  16. ODEs, Homework #3 1. Suppose A, B are constant square matrices such that etA

    E-Print Network [OSTI]

    Karageorgis, Paschalis

    ODEs, Homework #3 Solutions 1. Suppose A, B are constant square matrices such that etA etB = et identity with respect to t, we find that etA etB = et(A+B) = AetA etB + etA BetB = (A + B)et(A+B) . Differentiating once again, we now get A2 etA etB + AetA BetB + AetA BetB + etA B2 etB = (A + B)2 et(A+B) so we

  17. Sub-mm tests of the gravitational inverse-square law

    E-Print Network [OSTI]

    E. G. Adelberger

    2002-02-02T23:59:59.000Z

    Sub-mm tests of the gravitational inverse-square law are interesting from several quite different perspectives. This paper discusses work by the Eot-Wash group performed since the publication of our initial result in February 2001. We find no evidence for short-range Yukawa interactions. Our results provide an upper limit of 200 micrometers on the size of the largest ``extra'' dimension, and for the unification scenario with 2 large extra dimensions, set an upper limit of 150 micrometers on the size of those dimensions.

  18. Least-squares variational principles and the finite element method: theory, formulations, and models for solid and fluid mechanics

    E-Print Network [OSTI]

    Pontaza, Juan Pablo

    2004-09-30T23:59:59.000Z

    We consider the application of least-squares variational principles and the finite element method to the numerical solution of boundary value problems arising in the fields of solidand fluidmechanics.For manyof these ...

  19. Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at [square root] s=7??TeV

    E-Print Network [OSTI]

    Alver, Burak Han

    The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy ET? [E subscript Tau superscript gamma] in pp collisions at ?s=7??[square ...

  20. Dijet Azimuthal Decorrelations in pp Collisions at ?s=7? [square root of s=7]?TeV

    E-Print Network [OSTI]

    Alver, Burak Han

    Measurements of dijet azimuthal decorrelations in pp collisions at ?s=7??[square root of s=7] TeV using the CMS detector at the CERN LHC are presented. The analysis is based on an inclusive dijet event sample corresponding ...

  1. Pion femtoscopy in p?+?p collisions at ?s=200 [square root of s = 200] GeV

    E-Print Network [OSTI]

    Balewski, Jan T.

    The STAR Collaboration at the BNL Relativistic Heavy Ion Collider has measured two-pion correlation functions from p+p collisions at ?s=200 [square root of s = 200] GeV. Spatial scales are extracted via a femtoscopic ...

  2. Welding tritium aged stainless steel

    SciTech Connect (OSTI)

    Kanne, W.R. Jr.

    1993-04-01T23:59:59.000Z

    Stainless steels exposed to tritium become unweldable by conventional methods due to He buildup within the metal matrix. With longer service lives expected for new weapon systems, and service life extensions of older systems, methods for welding/repair on tritium-exposed material will become important. Results are reported that indicate that both solid-state resistance welding and low-heat gas metal arc overlay welding are promising methods for repair or modification of tritium-aged stainless steel.

  3. Heat Transfer and Pressure Drop Measurement for Square Channels with V-shape Ribs at High Reynolds Numbers

    E-Print Network [OSTI]

    Alkhamis, Nawaf Yahya

    2010-10-12T23:59:59.000Z

    HEAT TRANSFER AND PRESSURE DROP MEASUREMENT FOR SQUARE CHANNELS WITH V-SHAPE RIBS AT HIGH REYNOLDS NUMBERS A Thesis by NAWAF YAHYA ALKHAMIS Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2009 Major Subject: Mechanical Engineering HEAT TRANSFER AND PRESSURE DROP MEASUREMENT FOR SQUARE CHANNELS WITH V-SHAPE RIBS AT HIGH REYNOLDS NUMBERS A Thesis...

  4. Finding elementary formulas for theta functions associated to even sums of squares

    E-Print Network [OSTI]

    Varma, Ila

    2011-01-01T23:59:59.000Z

    This article discusses the classical problem of how to calculate $r_n(m)$, the number of ways to represent an integer $m$ by a sum of $n$ squares from a computational efficiency viewpoint. Although this problem has been studied in great detail, there are very few formulas given for the purpose of computing $r_n(m)$ quickly. More precisely, for fixed $n$, we want a formula for $r_n(m)$ that computes in log-polynomial time (with respect to $m$) when the prime factorization of $m$ is given. Restricting to even $n$, we can view $\\theta_n(q)$, the theta function associated to sums of $n$ squares, as a modular form of weight $n/2$ on $\\Gamma_1(4)$. In particular, we show that for only a small finite list of $n$ can $\\theta_n$ be written as a linear combination consisting entirely of Eisenstein series and cusp forms with complex multiplication. These are the only $n$ that give rise to "elementary" formulas for $r_n(m)$, i.e. formulas such that for a prime $p$, $r_n(p)$ can be calculated in $\\cO(\\log(p))$-time. Viewi...

  5. Augmented heat transfer in square channels with parallel, crossed, and V-shaped angled ribs

    SciTech Connect (OSTI)

    Han, J.C.; Zhang, Y.M. (Texas A and M Univ., College Station (United States)); Lee, C.P. (General Electric Co., Cincinnati, OH (United States))

    1991-08-01T23:59:59.000Z

    The effect of the rib angle orientation on the local heat transfer distributions and pressure drop in a square channel with two opposite in-line ribbed walls was investigated for Reynolds numbers from 15,000 to 90,000. The square channel composed of ten isolated copper sections has a length-to-hydraulic diameter ratio of 20; the rib height-to-hydraulic diameter ratio is 0.0625; the rib pitch-to-height ratio equals 10. Nine rib configurations were studied: 90 deg rib, 60 and 45 deg parallel ribs, 60 and 45 deg crossed ribs, 60 and 45 deg V-shaped ribs, and 60 and 45 deg {Lambda}-shaped ribs. The results show that the 60 deg (or 45 deg) V-shaped rib performs better than the 60 deg (or 45 deg) parallel rib and, subsequently, better than the 60 deg (or 45 deg) crossed rib and the 90 deg rib. The V-shaped rib produces the highest heat transfer augmentation, while the {Lambda}-shaped rib generates the greatest pressure drop. The crossed rib has the lowest heat transfer enhancement and the smallest pressure drop penalty.

  6. Solar-energy-system performance evaluation, Cathedral Square, Burlington, Vermont, July-December 1981

    SciTech Connect (OSTI)

    Welch, K.M.

    1981-01-01T23:59:59.000Z

    The Cathedral Square solar site is a 10-story multiunit apartment building in Vermont. Its active solar energy system is designed to supply 51% of the hot water load, and consists of 1798 square feet of flat plate collectors, 2699-gallon water tank in an enclosed mechanical room on the roof, and two auxiliary natural gas boilers to supply hot water to immersed heat exchanger in an auxiliary storage tank. The measured solar fraction was only 28%, not 51%, which, it is concluded, is an unreasonable expectation. Other performance data include the solar savings ratio, conventional fuel savings, system performance factor, and solar system coefficient of performance. Monthly performance data are given for the solar system overall, and for the collector, storage, and hot water subsystems. Also included are insolation data, typical storage fluid temperatures, domestic hot water consumption, and solar heat exchangers inlet/outlet temperatures, and typical domestic hot water subsystem temperatures. In addition, the system operating sequence and solar energy utilization are given. Appended are a system description, performance evaluation techniques, long-term weather data. (LEW)

  7. The Infinite Square Well with a Point Interaction: A Discussion on the Different Parametrizations

    E-Print Network [OSTI]

    Manuel Gadella; M. ngeles Garca-Ferrero; Sergio Gonzlez-Martn; Flix H. Maldonado-Villamizar

    2015-02-10T23:59:59.000Z

    The construction of Dirac delta type potentials has been achieved with the use of the theory of self adjoint extensions of non-self adjoint formally Hermitian (symmetric) operators. The application of this formalism to investigate the possible self adjoint extensions of the one dimensional kinematic operator $K=-d^2/dx^2$ on the infinite square well potential is quite illustrative and has been given elsewhere. This requires the definition and use of four independent real parameters, which relate the boundary values of the wave functions at the walls. By means of a different approach, that fixes matching conditions at the origin for the wave functions, it is possible to define a perturbation of the type $a\\delta(x)+b\\delta'(x)$, thus depending on two parameters, on the infinite square well. The objective of this paper is to investigate whether these two approaches are compatible in the sense that perturbations like $a\\delta(x)+b\\delta'(x)$ can be fixed and determined using the first approach.

  8. Aging phenomena in polystyrene thin films

    E-Print Network [OSTI]

    Koji Fukao; Hiroki Koizumi

    2008-01-05T23:59:59.000Z

    The aging behavior is investigated for thin films of atactic polystyrene through measurements of complex electric capacitance. During isothermal aging process the real part of the electric capacitance increases with aging time, while the imaginary part decreases with aging time. This result suggests that the aging time dependence of the real and imaginary parts are mainly associated with change in thickness and dielectric permittivity, respectively. In thin films, the thickness depends on thermal history of aging even above the glass transition. Memory and `rejuvenation' effects are also observed in the thin films.

  9. Aging of Pentaerythritol Tetranitrate (PETN)

    SciTech Connect (OSTI)

    Foltz, M F

    2009-04-22T23:59:59.000Z

    Pentaerythritol tetranitrate (PETN) is a relatively sensitive explosive used in many electroexplosive devices as well as in medicine. Of primary interest to LLNL is its use in items such as exploding bridgewire (EBW) detonators and exploding bridge foil initiators (EFI). In these devices the crystalline powder is pressed into a granular, low-density compact that can be initiated by an exploding wire or foil. The long-term stability of this pressed compact is of interest to weapon stockpile lifetime prediction studies. Key points about potential aging mechanisms can be summarized as follows: (1) There are a number of factors that can contribute to PETN instability. These include particle size, polymorphic phase transitions, crystal structure, impurities, moisture, occlusions, chemical incompatibility and biological (microorganism) action. of these factors the most important for long-term aging of high surface area powders used in detonators appears to be that of particle size growth. (2) There is a great deal of literature on the thermal degradation kinetics of PETN, unfortunately much of it with little bearing on ambient temperature aging during long-term storage. PETN is very stable with respect to thermal decomposition. Low-temperature thermal studies have not revealed evidence of chemical degradation products in archived PETN. Data extrapolated to 30 C predicts a half-life of 12 million years. (3) Moisture seems to lower the activation energy for and accelerate the decomposition of PETN. (4) External drivers affecting stability include temperature, moisture, radiation fields, and stress, while internal drivers include residual solvents, and impurities. Temperature affects kinetic processes of crystal growth such as adsorption, desorption, and diffusion rates of molecules on the surface of PETN crystals. A low-level radiation field may induce unexpected changes in the chemical makeup of PETN and its homologue impurities. Stress at high pressure points caused by crystalline surface irregularities may cause a decrease in surface area over time due to smoothing of contact points and sintering. PETN has been found to contain a number of impurities, including homologues, pentaerythryl ethers with a mixture of hydroxyl and nitrate functional groups, and organic salts, that can alter its physical and chemical properties. (5) The processes of sublimation/recrystallization and surface diffusion are important processes that can cause changes in PETN crystal morphology, particle size distribution and specific surface area. Sublimation feeds a process called Ostwald ripening, which involves the spontaneous growth of larger crystals from those of smaller size. This process proceeds with age regardless of storage conditions unless the crystals are treated to retard growth. The coarsening mechanisms include Ostwald ripening, 'sintering', and surface diffusion. The latter has not been experimentally observed, but a molecular modeling approach has attempted to investigate this phenomenon theoretically. (6) Threshold test fire, particle size distribution, specific surface area, thermal analysis, chemical analysis, powder compact specific surface area and density are approaches that have been used in the attempt to assess changes attributable to aging of PETN, with varying results. The biggest problem lies in the aging mechanism itself, which likely influences small changes in morphology, both internal and external, and particle size distribution changes on a scale too small to reliably monitor. Other aspects, such as subtle changes in density profiles within pressed powder compacts, may be beyond the capability of current technology to assess. Crystal growth significant enough to affect the PETN particle size distribution is expected to impact detonator performance. (7) Factors relevant to stabilizing particle size growth include crystal morphology, powder surface area and particle size distribution; crystal density and internal defects; and powder compact density and density gradients.

  10. SNF AGING SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    L.L. Swanson

    2005-04-06T23:59:59.000Z

    The purpose of this system description document (SDD) is to establish requirements that drive the design of the spent nuclear fuel (SNF) aging system and associated bases, which will allow the design effort to proceed. This SDD will be revised at strategic points as the design matures. This SDD identifies the requirements and describes the system design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This SDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This SDD is part of an iterative design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD follows the design with regard to the description of the system. The description provided in the SDD reflects the current results of the design process. Throughout this SDD, the term aging cask applies to vertical site-specific casks and to horizontal aging modules. The term overpack is a vertical site-specific cask that contains a dual-purpose canister (DPC) or a disposable canister. Functional and operational requirements applicable to this system were obtained from ''Project Functional and Operational Requirements'' (F&OR) (Curry 2004 [DIRS 170557]). Other requirements that support the design process were taken from documents such as ''Project Design Criteria Document'' (PDC) (BSC 2004 [DES 171599]), ''Site Fire Hazards Analyses'' (BSC 2005 [DIRS 172174]), and ''Nuclear Safety Design Bases for License Application'' (BSC 2005 [DIRS 171512]). The documents address requirements in the ''Project Requirements Document'' (PRD) (Canori and Leitner 2003 [DIRS 166275]). This SDD includes several appendices. Appendix A is a Glossary; Appendix B is a list of key system charts, diagrams, drawings, lists and additional supporting information; and Appendix C is a list of procedures that will be used to operate the system.

  11. Accelerated Aging of Roofing Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The Future of1 AAccelerated aging of roofing surfaces Hugo Destaillats, Ph.D.

  12. Neurobiology of Aging xxx (2006) xxxxxx Age-related changes in brain activation during

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    Neurobiology of Aging xxx (2006) xxxxxx Age-related changes in brain activation during a delayed. / Neurobiology of Aging xxx (2006) xxxxxx impairment in several different memory variables [78], including WM [9

  13. Optical pattern recognition architecture implementing the mean-square error correlation algorithm

    DOE Patents [OSTI]

    Molley, Perry A. (Albuquerque, NM)

    1991-01-01T23:59:59.000Z

    An optical architecture implementing the mean-square error correlation algorithm, MSE=.SIGMA.[I-R].sup.2 for discriminating the presence of a reference image R in an input image scene I by computing the mean-square-error between a time-varying reference image signal s.sub.1 (t) and a time-varying input image signal s.sub.2 (t) includes a laser diode light source which is temporally modulated by a double-sideband suppressed-carrier source modulation signal I.sub.1 (t) having the form I.sub.1 (t)=A.sub.1 [1+.sqroot.2m.sub.1 s.sub.1 (t)cos (2.pi.f.sub.o t)] and the modulated light output from the laser diode source is diffracted by an acousto-optic deflector. The resultant intensity of the +1 diffracted order from the acousto-optic device is given by: I.sub.2 (t)=A.sub.2 [+2m.sub.2.sup.2 s.sub.2.sup.2 (t)-2.sqroot.2m.sub.2 (t) cos (2.pi.f.sub.o t] The time integration of the two signals I.sub.1 (t) and I.sub.2 (t) on the CCD deflector plane produces the result R(.tau.) of the mean-square error having the form: R(.tau.)=A.sub.1 A.sub.2 {[T]+[2m.sub.2.sup.2.multidot..intg.s.sub.2.sup.2 (t-.tau.)dt]-[2m.sub.1 m.sub.2 cos (2.tau.f.sub.o .tau.).multidot..intg.s.sub.1 (t)s.sub.2 (t-.tau.)dt]} where: s.sub.1 (t) is the signal input to the diode modulation source: s.sub.2 (t) is the signal input to the AOD modulation source; A.sub.1 is the light intensity; A.sub.2 is the diffraction efficiency; m.sub.1 and m.sub.2 are constants that determine the signal-to-bias ratio; f.sub.o is the frequency offset between the oscillator at f.sub.c and the modulation at f.sub.c +f.sub.o ; and a.sub.o and a.sub.1 are constant chosen to bias the diode source and the acousto-optic deflector into their respective linear operating regions so that the diode source exhibits a linear intensity characteristic and the AOD exhibits a linear amplitude characteristic.

  14. Chloride Depletion in Aged Sea Salt Particles

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

    Chloride Depletion in Aged Sea Salt Particles Chloride Depletion in Aged Sea Salt Particles Print Wednesday, 06 February 2013 00:00 Particles or aerosols can be directly released...

  15. Dark Energy in the Dark Ages

    E-Print Network [OSTI]

    Linder, Eric V.

    2009-01-01T23:59:59.000Z

    LBNL- 61876 Dark Energy in the Dark Ages Eric V. LinderUniversity of California. Dark Energy in the Dark Ages Eric2008) Non-negligible dark energy density at high redshifts

  16. Utah Commission on Aging June 6, 2007

    E-Print Network [OSTI]

    Tipple, Brett

    Institutions Norma Matheson Chair Anne Peterson University of Utah Mayor JoAnn Seghini Midvale City Sara to the Commission for consideration. Aging SMART: Denise Brooks distributed Aging SMART Sourcebook. Website is up

  17. age randomised controlled: Topics by E-print Network

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

    98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

  18. aged rat erectile: Topics by E-print Network

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

    98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

  19. age factors: Topics by E-print Network

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

    98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

  20. aged interleukin-18 deficient: Topics by E-print Network

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

    98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

  1. age stratigraphic relationships: Topics by E-print Network

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

    98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

  2. 6, 39453963, 2006 Methanol inside aged

    E-Print Network [OSTI]

    ACPD 6, 39453963, 2006 Methanol inside aged tropical biomass burning plumes G. Dufour et al. Title Chemistry and Physics Discussions First space-borne measurements of methanol inside aged tropical biomass. Dufour (gaelle.dufour@lmd.polytechnique.fr) 3945 #12;ACPD 6, 39453963, 2006 Methanol inside aged

  3. Least Squares Temporal Difference Actor-Critic Methods with Applications to Robot Motion Control

    E-Print Network [OSTI]

    Estanjini, Reza Moazzez; Lahijanian, Morteza; Wang, Jing; Belta, Calin A; Paschalidis, Ioannis Ch

    2011-01-01T23:59:59.000Z

    We consider the problem of finding a control policy for a Markov Decision Process (MDP) to maximize the probability of reaching some states while avoiding some other states. This problem is motivated by applications in robotics, where such problems naturally arise when probabilistic models of robot motion are required to satisfy temporal logic task specifications. We transform this problem into a Stochastic Shortest Path (SSP) problem and develop a new approximate dynamic programming algorithm to solve it. This algorithm is of the actor-critic type and uses a least-square temporal difference learning method. It operates on sample paths of the system and optimizes the policy within a pre-specified class parameterized by a parsimonious set of parameters. We show its convergence to a policy corresponding to a stationary point in the parameters' space. Simulation results confirm the effectiveness of the proposed solution.

  4. Quantum chaos of a kicked particle in a 1D infinite square potential well

    E-Print Network [OSTI]

    Baowen Li; Jie Liu; Yan Gu; Bambi Hu

    1999-03-03T23:59:59.000Z

    We study quantum chaos in a non-KAM system, i.e. a kicked particle in a one-dimensional infinite square potential well. Within the perturbative regime the classical phase space displays stochastic web structures, and the diffusion coefficient D in the regime increases with the perturbative strength K giving a scaling $D \\propto K^{2.5}$, and in the large K regime D goes as K^2. Quantum mechanically, we observe that the level spacing statistics of the quasi eigenenergies changes from Poisson to Wigner distribution as the kick strength increases. The quasi eigenstates show power-law localization in the small K region, which become extended one at large K. Possible experimental realization of this model is also discussed.

  5. Multivariate analysis of remote LIBS spectra using partial least squares, principal component analysis, and related techniques

    SciTech Connect (OSTI)

    Clegg, Samuel M [Los Alamos National Laboratory; Barefield, James E [Los Alamos National Laboratory; Wiens, Roger C [Los Alamos National Laboratory; Sklute, Elizabeth [MT HOLYOKE COLLEGE; Dyare, Melinda D [MT HOLYOKE COLLEGE

    2008-01-01T23:59:59.000Z

    Quantitative analysis with LIBS traditionally employs calibration curves that are complicated by the chemical matrix effects. These chemical matrix effects influence the LIBS plasma and the ratio of elemental composition to elemental emission line intensity. Consequently, LIBS calibration typically requires a priori knowledge of the unknown, in order for a series of calibration standards similar to the unknown to be employed. In this paper, three new Multivariate Analysis (MV A) techniques are employed to analyze the LIBS spectra of 18 disparate igneous and highly-metamorphosed rock samples. Partial Least Squares (PLS) analysis is used to generate a calibration model from which unknown samples can be analyzed. Principal Components Analysis (PCA) and Soft Independent Modeling of Class Analogy (SIMCA) are employed to generate a model and predict the rock type of the samples. These MV A techniques appear to exploit the matrix effects associated with the chemistries of these 18 samples.

  6. Tube vibration in industrial-size test heat exchanger (90/sup 0/ square layout)

    SciTech Connect (OSTI)

    Halle, H.; Wambsganss, M.W.

    1983-02-01T23:59:59.000Z

    Tube vibrations in heat exchangers are being systematically investigated in a series of tests performed with an industrial-size test exchanger. Results from waterflow tests of eleven different tube bundles, in six- and eight-crosspass configurations on a 90/sup 0/ square layout with a pitch-to-diameter ratio of 1.25 are reported. The test cases include full tube bundles, no-tubes-in-window bundles, finned tube bundles, and proposed field and design fixes. The testing focused on identification of the lowest critical flowrate to initiate fluidelastic instability (large amplitude tube motion) and the location within the bundle of the tubes which first experience instability. The test results are tabulated to permit comparison with results obtained from previous tests with a 30/sup 0/ triangular layout tube bundle. Instability criteria are evaluated preliminarily. Pressure drop data are also generated and reported.

  7. Classical systems can be contextual too: Analogue of the Mermin-Peres square

    E-Print Network [OSTI]

    Pawel Blasiak

    2015-02-25T23:59:59.000Z

    Contextuality lays at the heart of quantum mechanics. In the prevailing opinion it is considered as a signature of 'quantumness' that classical theories lack. However, this assertion is only partially justified. Although contextuality is certainly true of quantum mechanics, it cannot be taken by itself as discriminating against classical theories. Here we consider a representative example of contextual behaviour, the so-called Mermin-Peres square, and present a discrete toy model of a bipartite system which reproduces the pattern of quantum predictions that leads to contradiction with the assumption of non-contextuality. This illustrates that quantum-like contextual effects have their analogues within classical models with epistemic constraints such as limited information gain and measurement disturbance.

  8. Nonzero Mean Squared Momentum of Quarks in the Non-Perturbative QCD Vacuum

    E-Print Network [OSTI]

    Li-Juan Zhou; Leonard S. Kisslinger; Wei-xing Ma

    2010-04-21T23:59:59.000Z

    The non-local vacuum condensates of QCD describe the distributions of quarks and gluons in the non-perturbative QCD vacuum. Physically, this means that vacuum quarks and gluons have nonzero mean-squared momentum, called virtuality. In this paper we study the quark virtuality which is given by the ratio of the local quark-gluon mixed vacuum condensate to the quark local vacuum condensate. The two vacuum condensates are obtained by solving Dyson-Schwinger Equations of a fully dressed quark propagator with an effective gluon propagator. Using our calculated condensates, we obtain the virtuality of quarks in the QCD vacuum state. Our numerical predictions differ from the other theoretical model calculations such as QCD sum rules, Lattice QCD and instanton models.

  9. Constraints on Light Pseudoscalars Implied by Tests of the Gravitational Inverse-Square Law

    E-Print Network [OSTI]

    Ephraim Fischbach; Dennis E. Krause

    1999-06-03T23:59:59.000Z

    The exchange of light pseudoscalars between fermions leads to a spin-independent potential in order g^4, where g is the Yukawa pseudoscalar-fermion coupling constant. This potential gives rise to detectable violations of both the weak equivalence principle (WEP) and the gravitational inverse-square law (ISL), even if g is quite small. We show that when previously derived WEP constraints are combined with those arisingfrom ISL tests, a direct experimental limit on the Yukawa coupling of light pseudoscalars to neutrons can be inferred for the first time (g_n^2/4pi < 1.6 \\times 10^-7), along with a new (and significantly improved) limit on the coupling of light pseudoscalars to protons.

  10. Heat transfer and friction in a square channel with one-wall or two-wall rib turbulators

    E-Print Network [OSTI]

    Huang, Jie Joy

    1991-01-01T23:59:59.000Z

    HEAT TRANSFER AND FRICTION IN A SQUARE CHANNEL WITH ONE-WAIL OR TWO-WAII RIB TURBULATORS A Thesis by JIE JOY HUANG Submitted to the Office of Graduate Studies of Texas A8rM University in partial fulfillment of the requirements for the degree... of Commit tee) D. Rhode (Member) . A. Hassan (Member) I W. Bradley (Head of Department) December 1991 ABSTRACT Heat Transfer and Friction in a Square Channel with One-Wall or Two-Wall Rib Turbulators. (December 1991) Jie Joy Huang, B. S...

  11. A calculation of the inductance of 3-phase buses comprised of square tubular conductors with 120-degree-angle spacing

    E-Print Network [OSTI]

    Zuch, Howard Weller

    1959-01-01T23:59:59.000Z

    LIBRARY A g M COLLEGE OF TEXAS A CALCULATION OF THE INDUCI'ANCE OF 3 ? PHASE BUSES COh6$ ISED OF SqUARE TUBULAR CONDUCTORS WITH 120-DEGREE-ANGLE S PAC ING A Thesis By Howard Wailer Zuch Submitted to ths Graduate School of the Agricultural... and Mechanical College of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE January 1959 Major Subject: Electrical Engineering A CAICULAT ION OF THE IMDUCTANCL' OF 3-PIIASI BUSES COMPR ISED OF SQUARE TUBULAR CONDUCTORS...

  12. aged korean adults: Topics by E-print Network

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

    AGING & SOCIETY Engineering Websites Summary: DEPARTMENT OF HEALTH, AGING & SOCIETY Monthly Speaker Series Dr. Ellen B. Ryan DATE TIME ROOM Department of Health, Aging, &...

  13. Characterization of Field-Aged Exhaust Gas Recirculation Cooler...

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

    Field-Aged Exhaust Gas Recirculation Cooler Deposits Characterization of Field-Aged Exhaust Gas Recirculation Cooler Deposits Characterized field-aged exhaust gas recirculation...

  14. Local Land-Use Controls and Aging-Friendliness

    E-Print Network [OSTI]

    Rosenthal, Larry A.

    2009-01-01T23:59:59.000Z

    A. 2001. Aging and Smart Growth: Building Aging-Sensitivebuilding such product exclusively, or predominantly, because it creates homogenous-age zones, defeats smart-

  15. Aging behavior and lifetime modeling for polycarbonate

    SciTech Connect (OSTI)

    Kahlen, S. [Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, Leoben 8700 (Austria); Wallner, G.M. [Institute of Materials Science and Testing of Plastics, University of Leoben, Franz-Josef Strasse 18, Leoben 8700 (Austria); Lang, R.W. [Institute for Polymeric Materials and Testing, University of Linz, Altenbergerstrasse 69, Linz 4040 (Austria)

    2010-05-15T23:59:59.000Z

    In this paper, polycarbonate (PC) as a material candidate for solar absorber applications is investigated as to the aging behavior at different temperatures in air and water. The aging conditioning was performed in air in the temperature range from 120 to 140 C and in water between 70 and 95 C. Tensile tests were performed on unaged and aged PC film specimens at ambient temperature using strain-to-break values as a performance indicator for the degree of aging. For PC the effect of aging was found to strongly depend on the aging conditions. Activation energy based lifetime prediction models according to various methods described in the literature were applied. The activation energies and corresponding lifetime predictions for the temperature range from 40 to 60 C in water and from 90 to 110 C in air derived from these models are compared and interpreted as to their practical relevance. (author)

  16. The 160 Square Degree ROSAT Survey: the Revised Catalog of 201 Clusters with Spectroscopic Redshifts

    E-Print Network [OSTI]

    Mullis, C R; Quintana, H; Vikhlinin, A; Henry, J P; Gioia, I M; Hornstrup, A; Forman, W; Jones, C

    2003-01-01T23:59:59.000Z

    We present the revised catalog of galaxy clusters detected as extended X-ray sources in the 160 Square Degree ROSAT Survey, including spectroscopic redshifts and X-ray luminosities for 200 of the 201 members. The median redshift is z~0.25 and the median X-ray luminosity is 4.2e+43 erg/s/h50^2 (0.5-2.0 keV). This is the largest high-redshift sample of X-ray selected clusters published to date. There are 73 objects at z>0.3 and 22 objects at z>0.5 drawn from a statistically complete flux-limited survey with a median object flux of 1.4d-13 erg/cm^2/s. We describe the optical follow-up of these clusters with an emphasis on our spectroscopy which has yielded 155 cluster redshifts, 110 of which are presented here for the first time. These measurements combined with 45 from the literature and other sources provide near-complete spectroscopic coverage for our survey. We discuss the final optical identifications for the extended X-ray sources in the survey region and compare our results to similar X-ray cluster search...

  17. Development of an analytic core flow approximation for a square duct in an oblique magnetic field

    SciTech Connect (OSTI)

    Morley, N.B.; Tillack, M.S.; Abdou, M.A.

    1991-03-01T23:59:59.000Z

    The core flow approximation for liquid metal (LM), magnetohydrodynamic (MHD) duct flow is a method that ignores the contributions of viscous forces in the fluid. For a fully developed, steady state flow situation, this approximation leaves the magnetic forces to be balanced only by the pressure gradient and results in a greatly simplified momentum equation. The velocity field predicted by the core flow equations is obtained much more easily than that described by the full solution, which usually requires a numerical approach. For this reason it is desirable to use the core flow method for flow situations in which viscosity has little effect. Developed here is an analytic core flow solution for a square duct in an obliquely incident magnetic field which omits any special treatment of boundary layers. This solution is compared to the full solution method developed in the code MH2D and a parametric comparison is performed. This general analytic approach can be expanded to consider rectangular ducts or walls of different thickness and electrical conductivity. The latter, however, will greatly complicate the equations presented here.

  18. THE MADISON SQUARE GARDEN DISPERSION STUDY (MSG05) METEOROLOGICAL DATA DESCRIPTION.

    SciTech Connect (OSTI)

    REYNOLDS, R.M.

    2006-10-01T23:59:59.000Z

    MSG05 was a study of atmospheric transport and dispersion in the deep urban canyons of Midtown New York City, in the area of Madison Square Garden. This downtown area is considered to be a prime target for terrorist activities, and has one of the largest commuter populations in the world. Little is known about air flow and hazardous gas dispersion in such scenarios, since previous urban field experiments have focused on small to medium sized cities with much smaller street canyons. On March 10 and 14, 2005, a series of Perfluorocarbon Tracer (PFT) tracers were released and tracked with about 30 sampling stations at radial distances of about 0.2 and 0.4 km, with vertical profiles near a 250 m tall building (One Penn Plaza). Meteorological stations collected wind data in the MSG vicinity, at street level and rooftop level. MSG05 is expected to provide useful information on rapid vertical dispersion will assist in planning for more extensive studies. This data release is being made available to a restricted group of key scientists who have worked on the project. Part of the QA program involves feedback from scientists and modelers who are working on this study. This document describes the meteorological component of the project. The file organization and metadata are detailed so that a researcher can work with the data sets.

  19. Detailed heat transfer distributions in two-pass smooth and turbulated square channels with bleed holes

    SciTech Connect (OSTI)

    Ekkad, S.V.; Huang, Y.; Han, J.C. [Texas A and M Univ., College Station, TX (United States)

    1996-12-31T23:59:59.000Z

    Modern gas turbine blades have internal serpentine passage for providing effective cooling. Rib turbulators are added periodically on the cooling passage surface to enhance heat transfer. Some of the cooling air is ejected out through bleed (or film) holes for external blade film cooling. The presence of periodic rib turbulators and bleed holes creates strong axial and spanwise variations in the heat transfer distributions on the passage surface. Detailed heat transfer coefficient distributions are presented in this study for a two-pass square channel with a 180{degree} turn. One wall of the channel has periodically placed bleed holes. Four different configurations of 90{degree} parallel, 60{degree} parallel, 60{degree} V ribs, and 60{degree} inverted V ribs are studied in conjunction with the effect of bleed holes on the same wall. The surface is coated with a thin layer of thermochromic liquid crystals and a transient test is run to obtain the detailed heat transfer distributions. The 60{degree} parallel, 60{degree} V, and 60{degree} inverted ribbed channels produce similar levels of heat transfer enhancement in the first pass. However, the 60{degree} inverted V ribbed channel produces higher enhancement in the second pass. Regional averaged heat transfer results indicate that a test surface with bleed holes provides similar heat transfer enhancement as that for a test surface without bleed holes although 20--25% of the inlet mass flow exits through the bleed holes.

  20. Self-avoiding trails with nearest neighbour interactions on the square lattice

    E-Print Network [OSTI]

    A. Bedini; A. L. Owczarek; T. Prellberg

    2012-10-26T23:59:59.000Z

    Self-avoiding walks and self-avoiding trails, two models of a polymer coil in dilute solution, have been shown to be governed by the same universality class. On the other hand, self-avoiding walks interacting via nearest-neighbour contacts (ISAW) and self-avoiding trails interacting via multiply-visited sites (ISAT) are two models of the coil-globule, or collapse transition of a polymer in dilute solution. On the square lattice it has been established numerically that the collapse transition of each model lies in a different universality class. The models differ in two substantial ways. They differ in the types of subsets of random walk configurations utilised (site self-avoidance versus bond self-avoidance) and in the type of attractive interaction. It is therefore of some interest to consider self-avoiding trails interacting via nearest neighbour attraction (INNSAT) in order to ascertain the source for the difference in the collapse universality class. Using the flatPERM algorithm, we have performed computer simulations of this model. We present numerical evidence that the singularity in the free energy of INNSAT at the collapse transition has a similar exponent to that of the ISAW model rather than the ISAT model. This would indicate that the type of interaction used in ISAW and ISAT is the source of the difference in universality class.

  1. Simulated Stochastic Approximation Annealing for Global Optimization with a Square-Root Cooling Schedule

    SciTech Connect (OSTI)

    Liang, Faming; Cheng, Yichen; Lin, Guang

    2014-06-13T23:59:59.000Z

    Simulated annealing has been widely used in the solution of optimization problems. As known by many researchers, the global optima cannot be guaranteed to be located by simulated annealing unless a logarithmic cooling schedule is used. However, the logarithmic cooling schedule is so slow that no one can afford to have such a long CPU time. This paper proposes a new stochastic optimization algorithm, the so-called simulated stochastic approximation annealing algorithm, which is a combination of simulated annealing and the stochastic approximation Monte Carlo algorithm. Under the framework of stochastic approximation Markov chain Monte Carlo, it is shown that the new algorithm can work with a cooling schedule in which the temperature can decrease much faster than in the logarithmic cooling schedule, e.g., a square-root cooling schedule, while guaranteeing the global optima to be reached when the temperature tends to zero. The new algorithm has been tested on a few benchmark optimization problems, including feed-forward neural network training and protein-folding. The numerical results indicate that the new algorithm can significantly outperform simulated annealing and other competitors.

  2. Widespread occurrence of the inverse square distribution in social sciences and taxonomy Guido Caldarelli,1,2

    E-Print Network [OSTI]

    Caldarelli, Guido

    Widespread occurrence of the inverse square distribution in social sciences and taxonomy GuidoRevE.69.035101 PACS number s : 89.75.Fb, 89.75.Hc, 05.40. a, 05.65. b Taxonomy is one of the major

  3. Inclusive Electroweak measurements in the muon channel with pp collisions at [the square root of] s=7 TeV

    E-Print Network [OSTI]

    Harris, Philip Coleman

    2011-01-01T23:59:59.000Z

    In this thesis, we perform the measurement of the production of W and Z bosons in proton-proton collisions at [the square root of]s = 7 TeV with the Large Hadron Collider (LHC). In the LHC, W and Z bosons are produced at ...

  4. Distributed multichannel speech enhancement with minimum mean-square error short-time spectral amplitude, log-spectral

    E-Print Network [OSTI]

    Johnson, Michael T.

    Distributed multichannel speech enhancement with minimum mean-square error short-time spectral Keywords: Acoustic arrays Speech enhancement Amplitude estimation Phase estimation Parameter estimation a b on the development and implementation of speech enhancement algorithms. Whereas the current state-of-the-art methods

  5. Recursive least squares with forgetting for online estimation of vehicle mass and road grade: theory and experiments

    E-Print Network [OSTI]

    Peng, Huei

    mass and road grade are important in automation of heavy duty vehicles, vehicle following manoeuvresRecursive least squares with forgetting for online estimation of vehicle mass and road grade, University of Michigan, G008 Lay Auto Lab, 1231 Beal Ave., Ann Arbor, MI 48109, USA Good estimates of vehicle

  6. 898 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 36, NO. 3, MAY 1998 Least Squares Subspace Projection Approach to

    E-Print Network [OSTI]

    Chang, Chein-I

    be thought of as a priori OSP. In order to evaluate these three approaches, their associated least squares) analysis. All results are demonstrated by computer simulations and Airborne Visible/Infrared Imaging classifier (TSC). I. INTRODUCTION THE ADVENT of high spatial resolution airborne and satellite sensors

  7. Reprint from RSC Advances, 4, 14962 (2014) Formation and dynamics of partially wetting droplets in square microchannels

    E-Print Network [OSTI]

    Cubaud, Thomas

    are generated by focusing water in a continuous phase of silicone oil using square microchannels. The shape and stability of the lubricating film between droplets and channel walls permit the classification of typical water hydrology,1-3 oil recovery,4-8 water-oil filtration,9-11 and fuel cells.12 Examples of basic flow

  8. 3D Least Squares Velocity from 3D Doppler Radial X. Chen, J.L. Barron, R.E. Mercer

    E-Print Network [OSTI]

    Barron, John

    neighbourhoods to compute local 3D velocity. Radial velocity (measured by the Doppler effect) is the component3D Least Squares Velocity from 3D Doppler Radial Velocity X. Chen, J.L. Barron, R.E. Mercer Dept. Radial velocity can be used to predict the motion of storms in sequences of Doppler radar datasets

  9. Materials Research in the Information Age

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

    Materials Research in the Information Age Accelerating Advanced Material Development NERSC Science Gateway a 'Google of Material Properties' October 31, 2011 | Tags: Materials...

  10. age reconsidering ovarian: Topics by E-print Network

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

    age-length key to estimate age Environmental Sciences and Ecology Websites Summary: Optimal sampling design for using the age-length key to estimate age composition of a fish...

  11. New age constraints on the Middle Stone Age occupations of Kharga Oasis, Western Desert, Egypt

    E-Print Network [OSTI]

    Asmerom, Yemane

    New age constraints on the Middle Stone Age occupations of Kharga Oasis, Western Desert, Egypt rocks, or tufas, exposed along the flanks of the Libyan Plateau near Kharga Oasis, Western Desert, Egypt

  12. Statistical CT noise reduction with multiscale decomposition and penalized weighted least squares in the projection domain

    SciTech Connect (OSTI)

    Tang Shaojie; Tang Xiangyang [Imaging and Medical Physics, Department of Radiology and Imaging Sciences, Emory University School of Medicine, 1701 Uppergate Dr., C-5018, Atlanta, Georgia 30322 (United States); School of Automation, Xi'an University of Posts and Telecommunications, Xi'an, Shaanxi 710121 (China); Imaging and Medical Physics, Department of Radiology and Imaging Sciences, Emory University School of Medicine, 1701 Uppergate Dr., C-5018, Atlanta, Georgia 30322 (United States)

    2012-09-15T23:59:59.000Z

    Purposes: The suppression of noise in x-ray computed tomography (CT) imaging is of clinical relevance for diagnostic image quality and the potential for radiation dose saving. Toward this purpose, statistical noise reduction methods in either the image or projection domain have been proposed, which employ a multiscale decomposition to enhance the performance of noise suppression while maintaining image sharpness. Recognizing the advantages of noise suppression in the projection domain, the authors propose a projection domain multiscale penalized weighted least squares (PWLS) method, in which the angular sampling rate is explicitly taken into consideration to account for the possible variation of interview sampling rate in advanced clinical or preclinical applications. Methods: The projection domain multiscale PWLS method is derived by converting an isotropic diffusion partial differential equation in the image domain into the projection domain, wherein a multiscale decomposition is carried out. With adoption of the Markov random field or soft thresholding objective function, the projection domain multiscale PWLS method deals with noise at each scale. To compensate for the degradation in image sharpness caused by the projection domain multiscale PWLS method, an edge enhancement is carried out following the noise reduction. The performance of the proposed method is experimentally evaluated and verified using the projection data simulated by computer and acquired by a CT scanner. Results: The preliminary results show that the proposed projection domain multiscale PWLS method outperforms the projection domain single-scale PWLS method and the image domain multiscale anisotropic diffusion method in noise reduction. In addition, the proposed method can preserve image sharpness very well while the occurrence of 'salt-and-pepper' noise and mosaic artifacts can be avoided. Conclusions: Since the interview sampling rate is taken into account in the projection domain multiscale decomposition, the proposed method is anticipated to be useful in advanced clinical and preclinical applications where the interview sampling rate varies.

  13. Neurobiology of Aging 32 (2011) 669679 Age-related trends in saccade characteristics among the elderly

    E-Print Network [OSTI]

    Munoz, Douglas Perry

    2011-01-01T23:59:59.000Z

    Neurobiology of Aging 32 (2011) 669679 Age-related trends in saccade characteristics among of Psychology, Queen's University, Kingston, Ontario, Canada e CIHR Group in Sensory-Motor Systems, Queen in reaction time also correlated positively with age in both saccade tasks. Voluntary saccade control

  14. SMART-X, "Square Meter, Arcsecond Resolution X-ray Telescope" A. Vikhlinina, P. Reida, H. Tananbauma, D. A. Schwartza, W. R. Formana, C. Jonesa, J. Bookbindera,

    E-Print Network [OSTI]

    SMART-X, "Square Meter, Arcsecond Resolution X-ray Telescope" A. Vikhlinina, P. Reida, HJohn Hopkins University, 3400 North Charles Street Baltimore, MD 21211 ABSTRACT SMART-X is a mission concept microcalorimeter, 22 FOV imager, and high-throughput gratings. 1. OVERVIEW We describe the Square Meter Arcsecond

  15. Local heat transfer in rotating smooth and ribbed two-pass square channels with three channel orientations

    SciTech Connect (OSTI)

    Dutta, S. [Univ. of South Carolina, Columbia, SC (United States); Han, J.C. [Texas A& M Univ., College Station, TX (United States)

    1996-08-01T23:59:59.000Z

    This paper presents experimental heat transfer results in a two-pass square channel with smooth and ribbed surfaces. The ribs are placed in a staggered half-V fashion with the rotation orthogonal to the channel axis. The channel orientation varies with respect to the rotation plane. A change in the channel orientation about the rotating frame causes a change in the secondary flow structure and associated flow and turbulence distribution. Consequently, the heat transfer coefficient from the individual surfaces of the two-pass square channel changes. The effects of rotation number on local Nusselt number ratio distributions are presented. Heat transfer coefficients with ribbed surfaces show different characteristics in rotation number dependency from those with smooth surfaces. Results show that staggered half-V ribs mostly have higher heat transfer coefficients than those with 90 and 60 deg continuous ribs. 16 refs., 10 figs.

  16. Robust parallel iterative solvers for linear and least-squares problems, Final Technical Report

    SciTech Connect (OSTI)

    Saad, Yousef

    2014-01-16T23:59:59.000Z

    The primary goal of this project is to study and develop robust iterative methods for solving linear systems of equations and least squares systems. The focus of the Minnesota team is on algorithms development, robustness issues, and on tests and validation of the methods on realistic problems. 1. The project begun with an investigation on how to practically update a preconditioner obtained from an ILU-type factorization, when the coefficient matrix changes. 2. We investigated strategies to improve robustness in parallel preconditioners in a specific case of a PDE with discontinuous coefficients. 3. We explored ways to adapt standard preconditioners for solving linear systems arising from the Helmholtz equation. These are often difficult linear systems to solve by iterative methods. 4. We have also worked on purely theoretical issues related to the analysis of Krylov subspace methods for linear systems. 5. We developed an effective strategy for performing ILU factorizations for the case when the matrix is highly indefinite. The strategy uses shifting in some optimal way. The method was extended to the solution of Helmholtz equations by using complex shifts, yielding very good results in many cases. 6. We addressed the difficult problem of preconditioning sparse systems of equations on GPUs. 7. A by-product of the above work is a software package consisting of an iterative solver library for GPUs based on CUDA. This was made publicly available. It was the first such library that offers complete iterative solvers for GPUs. 8. We considered another form of ILU which blends coarsening techniques from Multigrid with algebraic multilevel methods. 9. We have released a new version on our parallel solver - called pARMS [new version is version 3]. As part of this we have tested the code in complex settings - including the solution of Maxwell and Helmholtz equations and for a problem of crystal growth.10. As an application of polynomial preconditioning we considered the problem of evaluating f(A)v which arises in statistical sampling. 11. As an application to the methods we developed, we tackled the problem of computing the diagonal of the inverse of a matrix. This arises in statistical applications as well as in many applications in physics. We explored probing methods as well as domain-decomposition type methods. 12. A collaboration with researchers from Toulouse, France, considered the important problem of computing the Schur complement in a domain-decomposition approach. 13. We explored new ways of preconditioning linear systems, based on low-rank approximations.

  17. Effects of the Inverse Square Potential on Nucleon-Nucleon Elastic Scattering in the Bethe-Salpeter Equation

    E-Print Network [OSTI]

    Kinpara, Susumu

    2015-01-01T23:59:59.000Z

    Bethe-Salpeter equation is applied to nucleon-nucleon elastic scattering at the intermediate energy. The differential cross section and the polarization are calculated in terms of the phase shift analysis method using the two-body potential derived from the Bethe-Salpeter equation. The lowest-order Born approximation for the K-matrix is corrected by including the inverse square part of the potential.

  18. BMUS PROGRAMME Each small square box represents 0.5 unit. The shaded areas are the core

    E-Print Network [OSTI]

    Sheldon, Nathan D.

    BMUS PROGRAMME Each small square box represents 0.5 unit. The shaded areas are the core component of each year. The optional component can be made up of 0.5 units or whole units of Intermediate (I unit) Core 1102 (1 unit) Core 1103 (0.5 unit) Core 1104 (0.5 unit) Core 1105 (0.5 unit) Core 1106 (0.5

  19. Inverse Square Law of Gravitation in (2+1)-Dimensional Space-Time as a Consequence of Casimir Energy

    E-Print Network [OSTI]

    H. H. Soleng

    1993-10-04T23:59:59.000Z

    The gravitational effect of vacuum polarization in space exterior to a particle in (2+1)-dimensional Einstein theory is investigated. In the weak field limit this gravitational field corresponds to an inverse square law of gravitational attraction, even though the gravitational mass of the quantum vacuum is negative. The paradox is resolved by considering a particle of finite extension and taking into account the vacuum polarization in its interior.

  20. June 18, 2012 Symposium on Aging

    E-Print Network [OSTI]

    Church, George M.

    , anemia, muscular dystrophy, and diabetes. The reasons for accelerating research into the molecular diseases of aging such as diabetes, cancer, Alzheimer's and heart disease. Today's attendees come not only

  1. HYGROTHERMAL AGING OF POLYIMIDE MATRIX COMPOSITE LAMINATES

    E-Print Network [OSTI]

    Nairn, John A.

    . The time to initiate water-induced microcracks, tm, (in minutes), was log .t T m = + 3423 1 35 (1) #12-ply laminates and supplied to us by the Boeing Company. For hygrothermal aging experiments, a series

  2. Aging of polymeric composites : a literature review

    E-Print Network [OSTI]

    Trevio-Garrido, Margie N

    2013-01-01T23:59:59.000Z

    Due to their increased use in today's society, an extensive survey was undertaken in this report to condense what's been, thus far, discovered as to the effects of aging on polymeric composites. Special emphasis was placed ...

  3. Age determination of 15 old to intermediate-age small Magellanic cloud star clusters

    SciTech Connect (OSTI)

    Parisi, M. C.; Clari, J. J.; Piatti, A. E. [Observatorio Astronmico, Universidad Nacional de Crdoba, Laprida 854, Crdoba, CP 5000 (Argentina); Geisler, D.; Leiton, R. [Departamento de Astronoma, Universidad de Concepcin, Casilla 160-C, Concepcin (Chile); Carraro, G. [European Southern Observatory, Casilla 19001, Santiago de Chile (Chile); Costa, E. [Universidad de Chile, Casilla 36-D, Santiago de Chile (Chile); Grocholski, A. J. [Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Tower Drive, Baton Rouge, LA 70803-4001 (United States); Sarajedini, A., E-mail: celeste@oac.uncor.edu, E-mail: claria@oac.uncor.edu, E-mail: andres@oac.uncor.edu, E-mail: dgeisler@astro-udec.cl, E-mail: roger.leiton@astro-udec.cl, E-mail: gcarraro@eso.org, E-mail: costa@das.uchile.cl, E-mail: grocholski@phys.lsu.edu, E-mail: ata@astro.ufl.edu [Department of Astronomy, University of Florida, P.O. Box 112055, Gainesville, FL 32611 (United States)

    2014-04-01T23:59:59.000Z

    We present color-magnitude diagrams in the V and I bands for 15 star clusters in the Small Magellanic Cloud (SMC) based on data taken with the Very Large Telescope (VLT, Chile). We selected these clusters from our previous work, wherein we derived cluster radial velocities and metallicities from calcium II infrared triplet (CaT) spectra also taken with the VLT. We discovered that the ages of six of our clusters have been appreciably underestimated by previous studies, which used comparatively small telescopes, graphically illustrating the need for large apertures to obtain reliable ages of old and intermediate-age SMC star clusters. In particular, three of these clusters, L4, L6, and L110, turn out to be among the oldest SMC clusters known, with ages of 7.9 1.1, 8.7 1.2, and 7.6 1.0 Gyr, respectively, helping to fill a possible 'SMC cluster age gap'. Using the current ages and metallicities from Parisi et al., we analyze the age distribution, age gradient, and age-metallicity relation (AMR) of a sample of SMC clusters measured homogeneously. There is a suggestion of bimodality in the age distribution but it does not show a constant slope for the first 4 Gyr, and we find no evidence for an age gradient. Due to the improved ages of our cluster sample, we find that our AMR is now better represented in the intermediate/old period than we had derived in Parisi et al., where we simply took ages available in the literature. Additionally, clusters younger than ?4 Gyr now show better agreement with the bursting model of Pagel and Tautvaiien?, but we confirm that this model is not a good representation of the AMR during the intermediate/old period. A more complicated model is needed to explain the SMC chemical evolution in that period.

  4. Fatigue and Creep Crack Propagation behaviour of Alloy 617 in the Annealed and Aged Conditions

    SciTech Connect (OSTI)

    Julian K. Benz; Richard N. Wright

    2013-10-01T23:59:59.000Z

    The crack propagation behaviour of Alloy 617 was studied under various conditions. Elevated temperature fatigue and creep-fatigue crack growth experiments were conducted at 650 and 800 degrees C under constant stress intensity (triangle K) conditions and triangular or trapezoidal waveforms at various frequencies on as-received, aged, and carburized material. Environmental conditions included both laboratory air and characteristic VHTR impure helium. As-received Alloy 617 displayed an increase in the crack growth rate (da/dN) as the frequency was decreased in air which indicated a time-dependent contribution component in fatigue crack propagation. Material aged at 650C did not display any influence on the fatigue crack growth rates nor the increasing trend of crack growth rate with decreasing frequency even though significant microstructural evolution, including y (Ni3Al) after short times, occurred during aging. In contrast, carburized Alloy 617 showed an increase in crack growth rates at all frequencies tested compared to the material in the standard annealed condition. Crack growth studies under quasi-constant K (i.e. creep) conditions were also completed at 650 degrees C and a stress intensity of K = 40 MPa9 (square root)m. The results indicate that crack growth is primarily intergranular and increased creep crack growth rates exist in the impure helium environment when compared to the results in laboratory air. Furthermore, the propagation rates (da/dt) continually increased for the duration of the creep crack growth either due to material aging or evolution of a crack tip creep zone. Finally, fatigue crack propagation tests at 800 degrees C on annealed Alloy 617 indicated that crack propagation rates were higher in air than impure helium at the largest frequencies and lowest stress intensities. The rates in helium, however, eventually surpass the rates in air as the frequency is reduced and the stress intensity is decreased which was not observed at 650 degrees C.

  5. Globular Cluster Ages and Stromgren CCD Photometry

    E-Print Network [OSTI]

    Frank Grundahl

    1999-09-23T23:59:59.000Z

    Stromgren uvby CCD photometry can be used in a variety of ways to constrain the absolute and relative ages of globular clusters. The reddening corrected (v-y, c1) diagram offers the means to derive ages that are completely independent of distance. Very precise differential ages for clusters of the same chemical composition may also be determined from such 2-color plots, or from measurements of the magnitude difference, Delta_u, between the subgiant and horizontal branches on the $u-y, u$ plane (where both of these features are flat and well-defined, even for clusters like M13 that have extremely blue HBs on the (B-V, V) diagram). Based on high-quality photometry we find that: (1) M92 is 15 Gyr old, (2) M3 and M13 differ in age by < 1 Gyr, and (3) NGC 288, NGC 362, and NGC 1851 are coeval to within ~1.5 Gyr. These results strongly suggest that age cannot be the only ``second parameter''. Finally, we suggest that the observed variations in c1 among giant branch stars in all the metal-poor clusters that we have studied so far are likely due to star-to-star C and N abundance variations, and potentially indicate that most (if not all) globular clusters have ``primordial'' variations in at least these elements.

  6. Restructuring and aging in a capillary suspension

    E-Print Network [OSTI]

    Erin Koos; Wolfgang Kannowade; Norbert Willenbacher

    2014-10-16T23:59:59.000Z

    The rheological properties of capillary suspensions, suspensions with small amounts of an added immiscible fluid, are dramatically altered with the addition of the secondary fluid. We investigate a capillary suspension to determine how the network ages and restructures at rest and under applied external shear deformation. The present work uses calcium carbonate suspended in silicone oil (11 % solids) with added water as a model system. Aging of capillary suspensions and their response to applied oscillatory shear is distinctly different from particulate gels dominated by the van der Waals forces. The suspensions dominated by the capillary force are very sensitive to oscillatory flow, with the linear viscoelastic regime ending at a deformation of only 0.1 % and demonstrating power-law aging behavior. This aging persists for long times at low deformations or for shorter times with a sudden decrease in the strength at higher deformations. This aging behavior suggests that the network is able to rearrange and even rupture. This same sensitivity is not demonstrated in shear flow where very high shear rates are required to rupture the agglomerates returning the apparent viscosity of capillary suspensions to the same viscosity as for the pure vdW suspension. A transitional region is also present at intermediate water contents wherein the material response depends very strongly on the type, strength, and duration of the external forcing.

  7. adult age groups: Topics by E-print Network

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

    young (aged 18-35) adults and 10 older (aged 60-80) adults were tested. There was a... James, Vairi A. W. 2009-07-03 16 The Influence of Self-Perceptions of Aging on Older Adults'...

  8. Effects of Age on Meiosis in Budding Yeast

    E-Print Network [OSTI]

    Boselli, Monica

    In humans, the frequency with which meiotic chromosome mis-segregation occurs increases with age. Whether age-dependent meiotic defects occur in other organisms is unknown. Here, we examine the effects of replicative aging ...

  9. aged osteoporotic vertebral: Topics by E-print Network

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

    TEXAS 1 VERTEBRATE PALEONTOLOGY OF THE SOUTHERN HIGH PLAINS CiteSeer Summary: Texas Panhandle cover an area of approximately 50,000 square miles. That portion lying south of the...

  10. On the generalization of linear least mean squares estimation to quantum systems with non-commutative outputs

    E-Print Network [OSTI]

    Nina H. Amini; Zibo Miao; Yu Pan; Matthew R. James; Hideo Mabuchi

    2015-01-19T23:59:59.000Z

    The purpose of this paper is to study the problem of generalizing the Belavkin-Kalman filter to the case where the classical measurement signal is replaced by a fully quantum non-commutative output signal. We formulate a least mean squares estimation problem that involves a non-commutative system as the filter processing the non-commutative output signal. We solve this estimation problem within the framework of non-commutative probability. Also, we find the necessary and sufficient conditions which make these non-commutative estimators physically realizable.

  11. WASHINGTON SQUARE HALL 118 ONE WASHINGTON SQUARE

    E-Print Network [OSTI]

    Su, Xiao

    Impact Assessment Rachel O'Malley Concentration in Environmental Restoration and Resource Management: (408) 924-5477 ENVIRONMENTAL-STUDIES@SJSU.EDU WWW.SJSU.EDU/ENVS SJSU DEPARTMENT OF ENVIRONMENTAL Mulvaney, Rachel O'Malley, and Will Russell BACHELOR OF SCIENCE IN ENVIRONMENTAL STUDIES Bachelor

  12. age horizontal branch: Topics by E-print Network

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

    Stars as an Age Indicator Astrophysics (arXiv) Summary: Surface temperature distribution of horizontal-branch (HB) stars is very sensitive to age in old stellar systems,...

  13. aging female sencar: Topics by E-print Network

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

    should increase with age after puberty. To test this, we examined age Pierce, Graham 57 Perception of Conspecific Female Pheromone Stimulates Female Calling in an Arctiid Moth,...

  14. age estimation: Topics by E-print Network

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

    face Wiskott, Laurenz 7 OPTIMUM ALWCATION FOR ESTIMATING AGE COMPOSITION USING AGE-LENGTH KEY Environmental Sciences and Ecology Websites Summary: OPTIMUM ALWCATION FOR...

  15. Diagnostic and Prognostic Analysis of Battery Performance & Aging...

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

    and Prognostic Analysis of Battery Performance & Aging based on Kinetic and Thermodynamic Principles Diagnostic and Prognostic Analysis of Battery Performance & Aging based on...

  16. american children ages: Topics by E-print Network

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

    july 2004 Age-Specific Demography in Plantago: Uncovering Roach,. Deborah 17 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

  17. THYROID HORMONE REVERSES AGING-INDUCED MYOCARDIAL FATTY ACID...

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

    occurs during aging in humans and mice and may contribute to development of heart failure. Aging also impairs myocardial fatty acid oxidation, causing increased...

  18. aging aircraft nondestructive: Topics by E-print Network

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

    at Early Ages An Experimental and Numerical Analysis by Dr for Nondestructive Testing of Cement-Based Materials at Early Ages - An Experi- mental and Numerical Analysis...

  19. aging tumor growth: Topics by E-print Network

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

    1983), provide valuable data on the age 85 AGE AND GROWTH OF SKIPJACK TUNA, KATSUWONUS PELAMIS, AND YELLOWFIN TUNA, THUNNUS ALBACARES, AS INDICATED Environmental Sciences and...

  20. age site south: Topics by E-print Network

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

    The Ohio Department of Aging, The Aging Network, The Ohio State University, The United States Department of Agriculture and County Commissioners Cooperating. Engineering Websites...

  1. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--II: ANALOG AND DIGITAL SIGNAL PROCESSING, VOL. 46, NO. 8, AUGUST 1999 1035 An Improved Weighted Least-Squares Design

    E-Print Network [OSTI]

    Lu, Wu-Sheng

    , AUGUST 1999 1035 An Improved Weighted Least-Squares Design for Variable Fractional Delay FIR Filters Wu, University of Victoria, Victoria, BC, Canada V8W 3P6. T.-B. Deng is with the Department of Information

  2. Inclusive jet and dijet production in polarized proton-proton collisions at [the square root of sigma] =200 GeV at RHIC

    E-Print Network [OSTI]

    Sakuma, Tai

    2010-01-01T23:59:59.000Z

    The inclusive jet cross section, the dijet cross section, and the dijet longitudinal double spin asymmetry ALL in polarized proton-proton collisions at [square root of sigma] = 200 GeV are measured with a data sample of ...

  3. Nonlinear Analysis of Beams Using Least-Squares Finite Element Models Based on the Euler-Bernoulli and Timoshenko Beam Theories

    E-Print Network [OSTI]

    Raut, Ameeta A.

    2010-07-14T23:59:59.000Z

    ..... 6 2.3 Summary............................................................................................ 8 3. THEORETICAL FORMULATION OF EBT AND TBT ............................ 9 3.1 Background... ......................................................... 30 5.4 Summary............................................................................................. 31 6. LEAST-SQUARES THEORY & FORMULATION .................................... 32 6.1 Introduction...

  4. Nonlinear Analysis of Beams Using Least-Squares Finite Element Models Based on the Euler-Bernoulli and Timoshenko Beam Theories

    E-Print Network [OSTI]

    Raut, Ameeta A.

    2010-07-14T23:59:59.000Z

    ..... 6 2.3 Summary............................................................................................ 8 3. THEORETICAL FORMULATION OF EBT AND TBT ............................ 9 3.1 Background... ......................................................... 30 5.4 Summary............................................................................................. 31 6. LEAST-SQUARES THEORY & FORMULATION .................................... 32 6.1 Introduction...

  5. Lawn chairs in Times Square : an analysis of the Pilot Streets Program and the provisional project approach for New York City's Green Light in Midtown project

    E-Print Network [OSTI]

    Taylor, Alexis (Alexis Abreu)

    2011-01-01T23:59:59.000Z

    In 2009 the New York City Department of Transportation (NYC DOT) initiated a Pilot Streets Program that called for the temporary closure of Broadway between 47th and 42nd Streets to all vehicular traffic. With Times Square ...

  6. Aging assessment for active fire protection systems

    SciTech Connect (OSTI)

    Ross, S.B. [Science and Engineering Associates, Inc. (United States); Nowlen, S.P.; Tanaka, T. [Sandia National Labs., Albuquerque, NM (United States)

    1995-06-01T23:59:59.000Z

    This study assessed the impact of aging on the performance and reliability of active fire protection systems including both fixed fire suppression and fixed fire detection systems. The experience base shows that most nuclear power plants have an aggressive maintenance and testing program and are finding degraded fire protection system components before a failure occurs. Also, from the data reviewed it is clear that the risk impact of fire protection system aging is low. However, it is assumed that a more aggressive maintenance and testing program involving preventive diagnostics may reduce the risk impact even further.

  7. Coronal Temperature as an Age Indicator

    E-Print Network [OSTI]

    Hwankyung Sung; M. S. Bessell; Hugues Sana

    2008-03-26T23:59:59.000Z

    The X-ray spectra of late type stars can generally be well fitted by a two temperature component model of the corona. We fnd that the temperature of both components are strong functions of stellar age, although the temperature of the hotter plasma in the corona shows a larger scatter and is probably affected by the activity of stars, such as flares. We confirm the power-law decay of the temperature of the hot plasma, but the temperature of the cool component decays linearly with log (age).

  8. Aging assessment of reactor instrumentation and protection system components. Aging-related operating experiences

    SciTech Connect (OSTI)

    Gehl, A.C.; Hagen, E.W. [Oak Ridge National Lab., TN (United States)

    1992-07-01T23:59:59.000Z

    A study of the aging-related operating experiences throughout a five-year period (1984--1988) of six generic instrumentation modules (indicators, sensors, controllers, transmitters, annunciators, and recorders) was performed as a part of the Nuclear Plant Aging Research Program. The effects of aging from operational and environmental stressors were characterized from results depicted in Licensee Event Reports (LERs). The data are graphically displayed as frequency of events per plant year for operating plant ages from 1 to 28 years to determine aging-related failure trend patterns. Three main conclusions were drawn from this study: (1) Instrumentation and control (I&C) modules make a modest contribution to safety-significant events: 17% of LERs issued during 1984--1988 dealt with malfunctions of the six I&C modules studied, and 28% of the LERs dealing with these I&C module malfunctions were aging related (other studies show a range 25--50%); (2) Of the six modules studied, indicators, sensors, and controllers account for the bulk (83%) of aging-related failures; and (3) Infant mortality appears to be the dominant aging-related failure mode for most I&C module categories (with the exception of annunciators and recorders, which appear to fail randomly).

  9. Effect of non-ageing and ageing ceria nanoparticles suspensions on fresh water micro-algae

    E-Print Network [OSTI]

    Boyer, Edmond

    Effect of non-ageing and ageing ceria nanoparticles suspensions on fresh water micro-algae Manier nanoparticle (nCeO2) suspensions, towards freshwater micro-algae assessing the effect nCeO2 suspensions microscopy (TEM). In addition, the interaction between NPs and algae were investigated using flow

  10. Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale D. J. Kapner,* T. S. Cook, E. G. Adelberger, J. H. Gundlach, B. R. Heckel, C. D. Hoyle, and H. E. Swanson

    E-Print Network [OSTI]

    Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

    Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale D. J. Kapner,* T-balance experiments to test the gravitational inverse-square law at separations between 9.53 mm and 55 m, probing of the gravitational inverse-square law we report in this Letter. Our tests were made with a substantially upgraded ver

  11. 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 200C 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.

  12. FORUM REVIEW ARTICLE Alternative Perspectives on Aging

    E-Print Network [OSTI]

    Gems, David

    mechanisms at the heart of the aging process are a long-standing mystery. An influential theory has that limit lifespan (4, 5). We will first briefly outline the crisis in the oxidative damage theory, then de, the nematode Caenorhabditis elegans. The Oxidative Damage Theory in Crisis Many studies that have used C

  13. Characterizing mechanical effects of aging damage

    SciTech Connect (OSTI)

    Sewell, T.D.; Chen, S.P.; Schoonover, J.R.; Trent, B.C.; Howe, P.M.; Hjelm, R.P.; Browning, R.V.

    1998-12-01T23:59:59.000Z

    This is the final report of a two-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The goal was to develop and apply several different experimental and theoretical/computational tools to better understand physical and chemical aging phenomena in plastic-bonded high explosives, and to develop a methodology for predicting the likely effects of aging on the mechanical properties of the composite based on input from these fundamental studies. Initial comparisons were done for spectra of fresh and aged Esane, as well as PBX-9501, and the authors found differences in the carbonyl region of the spectrum, which possibly reflect differences in hydrogen bonding due to aging phenomena. The micromechanical model of composites was extended to study various volume fractions of HMX with binders. The results showed that, as the binder fraction increases, there is a decrease in the maximum stress that can be supported but an increase in the percent strain at final fracture. A more realistic microstructural model was obtained through the use of a phase field model. Using this model, the authors have studied the microstructural evolution as a function of the grain boundary energy vs. misorientation relationship. The initial results indicate that there are some changes in the grain growth rate when the grain-boundary energy dependence on the angle is not constant. They also find that solute tends to segregate at the grain boundary and slows the grain growth kinetics.

  14. Bitcoin and the Age of Bespoke Silicon

    E-Print Network [OSTI]

    Wang, Deli

    Bitcoin and the Age of Bespoke Silicon Michael B. Taylor Associate Professor University of California, San Diego #12;This Talk Introduction An Overview of the Bitcoin Cryptocurrency Bitcoin's Computing Evolution Bespoke Silicon #12;Interesting Facts about Bitcoin The most successful digital

  15. Thermal aging of nitroplasticized Estane 5703

    SciTech Connect (OSTI)

    Orler, E. B. (E. Bruce); Wrobleski, Debra A.; Cooke, D. W. (D. Wayne); Bennett, B. L. (Bryan L.); Smith, M. E. (Mark E.); Jahan, M. S. (M. Shan)

    2002-01-01T23:59:59.000Z

    In support of the Lifetime Prediction modeling effort, we have been investigating the aging processes that could impact the lifetime of PBX 9501. PBX 9501 is composed of 95% HMX and 5% polymeric binder. The polymeric binder is composed of 50% nitroplasticizer (NP) and 50% Estane{reg_sign} 5703 with a small quantity of stabilizer. Estane{reg_sign} 5703 is a segmented poly(ester urethane) with mechanical properties derived from phase separation of hard and soft segments along the polymer backbone. Since the binder has a significant effect on the composite mechanical properties, it is essential to know how the binder changes with time. Typically, polymer lifetime predictions are determined from extrapolation of properties after the material has been exposed to elevated temperatures and/or reactive environments for varying periods of time. For multiphase polymers, this accelerated aging methodology is very difficult to interpret since elevated temperatures alter the physical structure of the polymer, as well as, accelerate the chemical degradation reactions. Accelerated aging studies of nitroplasticized Estane have shown an increase in the molecular weight. The increase in molecular weight is most likely due to polymer chain branching reactions that eventually leads to formation an insoluble cross-linked gel. The decreased chain mobility caused by branching may also affect phase separation, which in turn, may change the mechanical properties. In this paper we report results of thermal aging studies on the properties, morphology and chemistry of nitroplasticized Estane.

  16. Eligibility: Cancer Survivor ages 35-75

    E-Print Network [OSTI]

    Walter, Peter

    Eligibility: · Cancer Survivor ages 35-75 · Patient has completed treatment within last two years for non-metastic solid tumor · Patient's cancer is currently considered stable or in remission · At least. Please contact Missy Buchanan 415-353-7019 for more information. Helen Diller Family Comprehensive Cancer

  17. Aging and Place: Building Health Promotion into

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    Aging and Place: Building Health Promotion into Long-Term Care IHRP Brownbag May 21, 2013 Naoko-being in social contexts. To improve quality of services by building health promotion into long-term care. #12 U.S. 3. Building health promotion into long-term care Why important? Challenges

  18. Utah Commission on Aging June 16, 2009

    E-Print Network [OSTI]

    Tipple, Brett

    is focusing on fall prevention, end of life care, and elder abuse issues, all of which fall under the auspices Cherie Brunker Health Care Shauna O'Neil Area Agencies on Aging Robert Archuleta Ethnic Minorities Helen-Michele Church Department of Human Services Kent Alderman Legal Profession Gary Kelso Long-Term Care Jo

  19. Dark matter vs. modifications of the gravitational inverse-square law. Results from planetary motion in the solar system

    E-Print Network [OSTI]

    M. Sereno; Ph. Jetzer

    2006-06-08T23:59:59.000Z

    Dark matter or modifications of the Newtonian inverse-square law in the solar-system are studied with accurate planetary astrometric data. From extra-perihelion precession and possible changes in the third Kepler's law, we get an upper limit on the local dark matter density, rho_{DM} gravitational acceleration are really small. We examined the MOND interpolating function mu in the regime of strong gravity. Gradually varying mu suggested by fits of rotation curves are excluded, whereas the standard form mu(x)= x/(1+x^2)^{1/2} is still compatible with data. In combination with constraints from galactic rotation curves and theoretical considerations on the external field effect, the absence of any significant deviation from inverse square attraction in the solar system makes the range of acceptable interpolating functions significantly narrow. Future radio ranging observations of outer planets with an accuracy of few tenths of a meter could either give positive evidence of dark matter or disprove modifications of gravity.

  20. Finite element solution of multi-scale transport problems using the least squares based bubble function enrichment

    E-Print Network [OSTI]

    A. Yazdani; V. Nassehi

    2011-01-10T23:59:59.000Z

    This paper presents an optimum technique based on the least squares method for the derivation of the bubble functions to enrich the standard linear finite elements employed in the formulation of Galerkin weighted-residual statements. The element-level linear shape functions are enhanced with supplementary polynomial bubble functions with undetermined coefficients. The best least squares minimization of the residual functional obtained from the insertion of these trial functions into model equations results in an algebraic system of equations whose solution provides the unknown coefficients in terms of element-level nodal values. The normal finite element procedures for the construction of stiffness matrices may then be followed with no extra degree of freedom incurred as a result of such enrichment. The performance of the proposed method has been tested on a number of benchmark linear transport equations with the results compared against the exact and standard linear element solutions. It has been observed that low order bubble enriched elements produce more accurate approximations than the standard linear elements with no extra computational cost despite employing relatively crude mesh. However, for the solution of strongly convection or reaction dominated problems significantly higher order enrichments as well as extra mesh refinements will be required.

  1. The 2006 Harvard / Paul F. Glenn Symposium on Aging

    E-Print Network [OSTI]

    Church, George M.

    diseases of aging, such as diabetes, cancer, Alzheimer's and heart disease. A recent study1 concluded

  2. Summary of Environmental Performance at Harvard Greenhouse Gas Emissions from Harvard University

    E-Print Network [OSTI]

    and renewable energy purchases and on-site generation have not been made. 0 50 100 150 200 250 300 2006 2007 Campus (including any growth in square footage or usage). The data in the table indicate a 7% decline Buildings 18% All Buildings 7% 257 Harvard University Fact Book 2011-12: Environmental Performance 1 #12

  3. Search the Blog: Top 10 Green Building Trends for 2010

    E-Print Network [OSTI]

    Calculation 9. Net Zero Buildings 10. Energy-Efficient/Sustainable Building Education Let's discuss a few additional square footage into ammenities and details that give the home a richer feel. Net zero buildings, electrical outlets, lack of insulation, etc.). On top of supreme air sealing and insulating, net zero homes

  4. C.S. MOTT CENTER FOR HUMAN GROWTH AND DEVELOPMENT Annual Report 2012

    E-Print Network [OSTI]

    Finley Jr., Russell L.

    of the Perinatal Research Branch; the PRB occupies about a quarter of Mott net square footage and contributes Study to Evaluate the Efficacy and Safety of Belimumab (HGS1006) in Adult Subjects of Black Race with Systemic Lupus Erythematosus (SLE) (Internal Medicine, Josephine P. Dhar - PI); Phase I, Safety

  5. Texas Tech University Energy Savings Program April 2006 Update

    E-Print Network [OSTI]

    Zhuang, Yu

    for operation and maintenance. New initiatives will continue to be collected and shared with appropriate vehicle energy reduction goal. A. Energy Goals 1. Campus Energy Use Energy units are converted to mmbtu to allow to current energy costs and campus square footage. Utility Goal Actual % Change Est. Savings Electricity 0

  6. Texas Tech University Energy Savings Program July 2006 Update

    E-Print Network [OSTI]

    Gelfond, Michael

    for operation and maintenance. New initiatives will continue to be collected and shared with appropriate vehicle energy reduction goal. A. Energy Goals 1. Campus Energy Use Energy units are converted to mmbtu to allow to current energy costs and campus square footage. Utility FY05 Actual % Change Est. Savings Electricity

  7. Texas Tech University Energy Savings Program October 2013 Update Page 1 of 4 Texas Tech University Energy Savings Program

    E-Print Network [OSTI]

    Gelfond, Michael

    time period from the previous year normalized to current energy costs and campus square footage. During to FY12. Cogeneration steam, provided at no cost to the university by a local utility company its consumption of gasoline by 2,888 gallons or 1.2% compared to FY12. Table III: Historical

  8. Preliminary Study of Advanced Diagnostic Prescreening Methods

    E-Print Network [OSTI]

    Landman, D. S.; Haberl, J. S.

    1996-01-01T23:59:59.000Z

    by the gross square footage of the building. Basically, this is similar to taking the peak reading for each month as utilities do for their bills. However, the highest monthly peak is selected for the annual peak. In the case of Galveston (OES, WMS, PES, MES...

  9. Renovation $$ Collections Non-Library Tenant Pollak Library Space Plan

    E-Print Network [OSTI]

    de Lijser, Peter

    percent of assignable square footage (ASF) of library space was dedicated to print materials and shelving Floor North (PLN-1) (see attached map) Proposed Relocations/Removals Approximately 75% of shelving converted to group study or office space. Open areas where shelving used to be are suitable for more soft

  10. AGES: THE AGN AND GALAXY EVOLUTION SURVEY

    SciTech Connect (OSTI)

    Kochanek, C. S. [Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210 (United States); Eisenstein, D. J.; Caldwell, N.; Jones, C.; Murray, S. S.; Forman, W. R.; Green, P. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Cool, R. J. [Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544 (United States); Assef, R. J.; Eisenhardt, P.; Stern, D. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Jannuzi, B. T.; Dey, A. [NOAO, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Brown, M. J. I. [School of Physics, Monash University, Clayton, Victoria 3800 (Australia); Gonzalez, A. H. [Department of Astronomy, Bryant Space Science Center, University of Florida, Gainesville, FL 32611 (United States)

    2012-05-01T23:59:59.000Z

    The AGN and Galaxy Evolution Survey (AGES) is a redshift survey covering, in its standard fields, 7.7 deg{sup 2} of the Booetes field of the NOAO Deep Wide-Field Survey. The final sample consists of 23,745 redshifts. There are well-defined galaxy samples in 10 bands (the B{sub W} , R, I, J, K, IRAC 3.6, 4.5, 5.8, and 8.0 {mu}m, and MIPS 24 {mu}m bands) to a limiting magnitude of I < 20 mag for spectroscopy. For these galaxies, we obtained 18,163 redshifts from a sample of 35,200 galaxies, where random sparse sampling was used to define statistically complete sub-samples in all 10 photometric bands. The median galaxy redshift is 0.31, and 90% of the redshifts are in the range 0.085 < z < 0.66. Active galactic nuclei (AGNs) were selected as radio, X-ray, IRAC mid-IR, and MIPS 24 {mu}m sources to fainter limiting magnitudes (I < 22.5 mag for point sources). Redshifts were obtained for 4764 quasars and galaxies with AGN signatures, with 2926, 1718, 605, 119, and 13 above redshifts of 0.5, 1, 2, 3, and 4, respectively. We detail all the AGES selection procedures and present the complete spectroscopic redshift catalogs and spectral energy distribution decompositions. Photometric redshift estimates are provided for all sources in the AGES samples.

  11. Age-dependent decay in the landscape

    SciTech Connect (OSTI)

    Winitzki, Sergei [Department of Physics, University of Heidelberg (Germany)

    2008-03-15T23:59:59.000Z

    The picture of the 'multiverse' arising in diverse cosmological scenarios involves transitions between metastable vacuum states. It was pointed out by Krauss and Dent that the transition rates decrease at very late times, leading to a dependence of the transition probability between vacua on the age of each vacuum region. I investigate the implications of this non-Markovian, age-dependent decay on the global structure of the spacetime in landscape scenarios. I show that the fractal dimension of the eternally inflating domain is precisely equal to 3, instead of being slightly below 3, which is the case in scenarios with purely Markovian, age-independent decay. I develop a complete description of a non-Markovian landscape in terms of a nonlocal master equation. Using this description I demonstrate by an explicit calculation that, under some technical assumptions about the landscape, the probabilistic predictions of our position in the landscape are essentially unchanged, regardless of the measure used to extract these predictions. I briefly discuss the physical plausibility of realizing non-Markovian vacuum decay in cosmology in view of the possible decoherence of the metastable quantum state.

  12. Bulk, surface and corner free energy series for the chromatic polynomial on the square and triangular lattices

    E-Print Network [OSTI]

    Jesper Lykke Jacobsen

    2010-06-11T23:59:59.000Z

    We present an efficient algorithm for computing the partition function of the q-colouring problem (chromatic polynomial) on regular two-dimensional lattice strips. Our construction involves writing the transfer matrix as a product of sparse matrices, each of dimension ~ 3^m, where m is the number of lattice spacings across the strip. As a specific application, we obtain the large-q series of the bulk, surface and corner free energies of the chromatic polynomial. This extends the existing series for the square lattice by 32 terms, to order q^{-79}. On the triangular lattice, we verify Baxter's analytical expression for the bulk free energy (to order q^{-40}), and we are able to conjecture exact product formulae for the surface and corner free energies.

  13. Superconducting epitaxial thin films of CeNi{sub x}Bi{sub 2} with a bismuth square net structure

    SciTech Connect (OSTI)

    Buckow, Alexander; Kupka, Katharina; Retzlaff, Reiner; Kurian, Jose; Alff, Lambert [Institute of Materials Science, Technische Universitaet Darmstadt, 64287 Darmstadt (Germany)

    2012-10-15T23:59:59.000Z

    We have grown highly epitaxial and phase pure thin films of the arsenic-free pnictide compound CeNi{sub x}Bi{sub 2} on (100) MgO substrates by reactive molecular beam epitaxy (RMBE). X-ray diffraction and reflection high-energy electron diffraction of the films confirm the ZrCuSiAs structure with a Bi square net layer. Superconductivity was observed in magnetization and resistivity measurements for x= 0.75 to 0.93 in these CeNi{sub x}Bi{sub 2} thin films with the highest critical temperature of 4.05 K and a resistive transition width of 0.1 K for x= 0.86. Our results indicate that thin film deposition by RMBE provides a tool to synthesize high-quality pnictide superconductors of the novel 112 type.

  14. Width dependent transition of quantized spin-wave modes in Ni{sub 80}Fe{sub 20} square nanorings

    SciTech Connect (OSTI)

    Banerjee, Chandrima; Saha, Susmita; Barman, Saswati; Barman, Anjan, E-mail: abarman@bose.res.in [Thematic Unit of Excellence on Nanodevice Technology, Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700098 (India); Rousseau, Olivier [CEMS-RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Otani, YoshiChika [CEMS-RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)

    2014-10-28T23:59:59.000Z

    We investigated optically induced ultrafast magnetization dynamics in square shaped Ni{sub 80}Fe{sub 20} nanorings with varying ring width. Rich spin-wave spectra are observed whose frequencies showed a strong dependence on the ring width. Micromagnetic simulations showed different types of spin-wave modes, which are quantized upto very high quantization number. In the case of widest ring, the spin-wave mode spectrum shows quantized modes along the applied field direction, which is similar to the mode spectrum of an antidot array. As the ring width decreases, additional quantization in the azimuthal direction appears causing mixed modes. In the narrowest ring, the spin-waves exhibit quantization solely in azimuthal direction. The different quantization is attributed to the variation in the internal field distribution for different ring width as obtained from micromagnetic analysis and supported by magnetic force microscopy.

  15. Heilougjiang adopts measures to strengthen land management-each square millimeter of land is utterly cherished and rationally used

    SciTech Connect (OSTI)

    Tan Peiquan; Liu, Y.

    1983-07-30T23:59:59.000Z

    This article reports on how a Chinese province with a large area of land and a small population has adopted a series of measures to strengthen land management, to stop the illegal occupying of land, and to protect land resources. Investigations of land resources and of the state of land use, as well as soil surveys, have been launched in order to determine the rights of land ownership and use. Many counties and cities have experimented with dividing farm areas into districts and comprehensive land planning, established land files, trained key personnel in land management skills, and have launched scientific land research. Illegal occupation, waste and destruction of land have risen with the increase in population and construction. Per capita cultivated acreage has declined to 4.1 mu. An effort has been made to reach the people in urban and rural areas with this message: ''Cherish every square millimeter of land utterly and use it rationally''.

  16. Inflection points of microcanonical entropy: Monte Carlo simulation of q state Potts model on a finite square lattice

    SciTech Connect (OSTI)

    Praveen, E., E-mail: svmstaya@gmail.com; Satyanarayana, S. V. M., E-mail: svmstaya@gmail.com [Department of Physics, Pondicherry University, Puducherry-605014 (India)

    2014-04-24T23:59:59.000Z

    Traditional definition of phase transition involves an infinitely large system in thermodynamic limit. Finite systems such as biological proteins exhibit cooperative behavior similar to phase transitions. We employ recently discovered analysis of inflection points of microcanonical entropy to estimate the transition temperature of the phase transition in q state Potts model on a finite two dimensional square lattice for q=3 (second order) and q=8 (first order). The difference of energy density of states (DOS) ? ln g(E) = ln g(E+ ?E) ?ln g(E) exhibits a point of inflexion at a value corresponding to inverse transition temperature. This feature is common to systems exhibiting both first as well as second order transitions. While the difference of DOS registers a monotonic variation around the point of inflexion for systems exhibiting second order transition, it has an S-shape with a minimum and maximum around the point of inflexion for the case of first order transition.

  17. On the seismic age of the Sun

    E-Print Network [OSTI]

    G. Houdek; D. O. Gough

    2007-10-03T23:59:59.000Z

    We use low-degree acoustic modes obtained by the BiSON to estimate the main-sequence age $t_\\odot$ of the Sun. The calibration is accomplished by linearizing the deviations from a standard solar model the seismic frequencies of which are close to those of the Sun. Formally, we obtain the preliminary value $t_\\odot=4.68\\pm0.02 $Gy, coupled with an initial heavy-element abundance $Z=0.0169\\pm0.0005$. The quoted standard errors, which are not independent, are upper bounds implied under the assumption that the standard errors in the observed frequencies are independent.

  18. Asian Age Enterprise Ltd | 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 in Carbon Capture andsoftwareAsian Age Enterprise Ltd Place:

  19. Age Dating of Mixed SNM--Preliminary Investigations

    SciTech Connect (OSTI)

    Yuan, D., Guss, P. P., Yfantis, E., Klingensmith, A., Emer, D.

    2011-12-01T23:59:59.000Z

    Recently we investigated the nuclear forensics problem of age determination for mixed special nuclear material (SNM). Through limited computational mixing experiments and interactive age analysis, it was observed that age dating results are generally affected by the mixing of samples with different assays or even by small radioactive material contamination. The mixing and contamination can be detected through interactive age analysis, a function provided by the Decay Interaction, Visualization and Analysis (DIVA) software developed by NSTec. It is observed that for mixed SNM with two components, the age estimators typically fall into two distinct clusters on the time axis. This suggests that averaging or other simple statistical methods may not always be suitable for age dating SNM mixtures. Instead, an interactive age analysis would be more suitable for age determination of material components of such SNM mixtures. This work was supported by the National Center for Nuclear Security (NCNS).

  20. Model NOx storage systems: Storage capacity and thermal aging...

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

    Model NOx storage systems: Storage capacity and thermal aging of BaOtheta- Al2O3NiAl(100). Model NOx storage systems: Storage capacity and thermal aging of BaOtheta- Al2O3...

  1. aged primary coolant: Topics by E-print Network

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

    problem.(1,2 with a variety of functions that often span the different hypotheses of aging.(2) It is unsurprising senescence, is a primary mechanism of organismal aging.(9-13)...

  2. Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded II Asphalt Pavements Effect of Aging Simulations Concluding Remarks #12;3 Objectives Develop) Correspondence Principle based formulation Application: Asphalt concrete pavements (Part II) #12;4 Asphalt

  3. Exercise training modulates apoptotic signaling in the aging rat heart

    E-Print Network [OSTI]

    Kwak, Hyo Bum

    2005-11-01T23:59:59.000Z

    Aging is characterized by a progressive decline in cardiac function. A critical contributor to the age-related impairment in heart function is the loss of cardiac myocytes through ??apoptosis??, or programmed cell death. A dramatic increase...

  4. Microstructural Features in Aged Erbium Tritide Foils

    SciTech Connect (OSTI)

    Gelles, David S.; Brewer, L. N.; Kotula, Paul G.; Cowgill, Donald F.; Busick, C. C.; Snow, C. S.

    2008-01-01T23:59:59.000Z

    Aged erbium tritide foil specimens are found to contain five distinctly different microstructural features. The general structure was of large columnar grains of ErT2. But on a fine scale, precipitates believed to be erbium oxy-tritides and helium bubbles could be identified. The precipitate size was in the range of ~10 nm and the bubbles were of an unusual planar shape on {111} planes with an invariant thickness of ~1 nm and a diameter on the order of 10 nm. Also, an outer layer containing no fine precipitate structure and only a few helium bubbles was present on foils. This layer is best described as a denuded zone which probably grew during aging in air. Finally, large embedded Er2O3 particles were found at low density and non-uniformly distributed, but sometimes extending through the thickness of the foil. A failure mechanism allowing the helium to escape is suggested by observed cracking between bubbles closer to end of life.

  5. Monazite Th-Pb age depth profiling

    SciTech Connect (OSTI)

    Grove, M.; Harrison, T.M. [Univ. of California, Los Angeles, CA (United States)] [Univ. of California, Los Angeles, CA (United States)

    1999-06-01T23:59:59.000Z

    The significant capabilities of the ion microprobe for thermochronometric investigations of geologic materials remain largely unexploited. Whereas {sup 208}Pb/{sup 232}Th spot analysis allows {approximately} 10-mm-scale imaging of Pb loss profiles or overgrowths in sectioned monazite grains, the spatial resolution offered by depth profiling into the surface region of natural crystals is more than two orders of magnitude higher. The authors document here the ability of the high-resolution ion microprobe to detect {sup 208}Pb/{sup 232}Th age differences of < 1 m.y. with better than 0.05 {micro}m depth resolution in the outer micron of Tertiary monazites from the hanging wall of the Himalayan Main Central thrust. Age gradients on this scale are inaccessible to ion microprobe spot analysis or conventional thermal ionization mass spectrometry. Interpretation of the near-surface {sup 208}Pb distributions with available monazite Pb diffusion data illustrates the potential of the approach for recovering continuous, high-temperature thermal history information not previously available.

  6. The 2008 Harvard / Paul F. Glenn Symposium on Aging

    E-Print Network [OSTI]

    Church, George M.

    of aging such as diabetes, cancer, Alzheimer's and heart disease. Thus, a major goal in the coming years

  7. The 2007 Harvard / Paul F. Glenn Symposium on Aging

    E-Print Network [OSTI]

    Church, George M.

    are regulated, leading to novel medicines to forestall and treat diseases of aging such as diabetes, cancer

  8. The 2009 Harvard / Paul F. Glenn Symposium on Aging

    E-Print Network [OSTI]

    Church, George M.

    of aging such as diabetes, cancer, Alzheimer's and heart disease. Thus, a major goal in the coming years

  9. Characterization of thermal aging of duplex stainless steel by SQUID

    SciTech Connect (OSTI)

    Isobe, Y.; Kamimura, A.; Aoki, K.; Nakayasu, F. [Nuclear Fuel Industries, Ltd., Osaka (Japan)

    1995-08-01T23:59:59.000Z

    Thermal aging is a growing concern for long-term-aged duplex stainless steel piping in nuclear power plants. Superconducting QUantum Interference Device (SQUID) was used for the detection of thermal aging of SUS329 rolled duplex stainless steel and SCS16 cast duplex stainless steel. It was found that the SQUID output signal pattern in the presence of AC magnetic field applied to the specimen was sensitive to the changes in electromagnetic properties due to thermal aging.

  10. aged wild-type littermates: Topics by E-print Network

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

    98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

  11. aged 6-12 diagnosed: Topics by E-print Network

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

    98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

  12. FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL

    E-Print Network [OSTI]

    L'Ecuyer, Pierre

    1 FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL Pierre L'Ecuyer, Benoit Martin, controlled by a replacement rule based on age thresholds. We show how to estimate the expected cost­ generative simulation, maintenance models, age replacement policies. #12; 2 L'ECUYER, MARTIN, AND V ' AZQUEZ

  13. FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL

    E-Print Network [OSTI]

    Vázquez-Abad, Felisa J.

    FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL Pierre L'Ecuyer, Benoit Martin, controlled by a replacement rule based on age thresholds. We show how to estimate the expected cost­ generative simulation, maintenance models, age replacement policies. #12; L'ECUYER, MARTIN, AND V ' AZQUEZ

  14. Market Square SW MONTGOMERY

    E-Print Network [OSTI]

    I-405 To26W est SWPARKAVE Hoffmann Hall SW MARKET SW10th SW11th SW12th Parking Structure 3 Market Hall Blackstone Smith Memorial Student Union Cramer Hall Lincoln Hall SW MARKET SW CLAY SW CLAY Montgomery West Heating Plant SW COLUMBIA SW COLUMBIA Fourth Ave Building N S E W Urban Center Peter W. Stott

  15. LOGISTIC FUNCTION PROFILE FIT: A least-squares program for fitting interface profiles to an extended logistic function

    SciTech Connect (OSTI)

    Kirchhoff, William H. [Surface and Microanalysis Science Division, National Institute of Standards and Technology, 100 Bureau Drive, Stop 8370, Gaithersburg, Maryland 20899-8370 (United States)

    2012-09-15T23:59:59.000Z

    The extended logistic function provides a physically reasonable description of interfaces such as depth profiles or line scans of surface topological or compositional features. It describes these interfaces with the minimum number of parameters, namely, position, width, and asymmetry. Logistic Function Profile Fit (LFPF) is a robust, least-squares fitting program in which the nonlinear extended logistic function is linearized by a Taylor series expansion (equivalent to a Newton-Raphson approach) with no apparent introduction of bias in the analysis. The program provides reliable confidence limits for the parameters when systematic errors are minimal and provides a display of the residuals from the fit for the detection of systematic errors. The program will aid researchers in applying ASTM E1636-10, 'Standard practice for analytically describing sputter-depth-profile and linescan-profile data by an extended logistic function,' and may also prove useful in applying ISO 18516: 2006, 'Surface chemical analysis-Auger electron spectroscopy and x-ray photoelectron spectroscopy-determination of lateral resolution.' Examples are given of LFPF fits to a secondary ion mass spectrometry depth profile, an Auger surface line scan, and synthetic data generated to exhibit known systematic errors for examining the significance of such errors to the extrapolation of partial profiles.

  16. Evaluation of weld porosity in laser beam seam welds: optimizing continuous wave and square wave modulated processes.

    SciTech Connect (OSTI)

    Ellison, Chad M. (Honeywell FM& T, Kansas City, MO); Perricone, Matthew; Faraone, Kevin M. (Honeywell FM& T, Kansas City, MO); Roach, Robert Allen; Norris, Jerome T.

    2007-02-01T23:59:59.000Z

    Nd:YAG laser joining is a high energy density (HED) process that can produce high-speed, low-heat input welds with a high depth-to-width aspect ratio. This is optimized by formation of a ''keyhole'' in the weld pool resulting from high vapor pressures associated with laser interaction with the metallic substrate. It is generally accepted that pores form in HED welds due to the instability and frequent collapse of the keyhole. In order to maintain an open keyhole, weld pool forces must be balanced such that vapor pressure and weld pool inertia forces are in equilibrium. Travel speed and laser beam power largely control the way these forces are balanced, as well as welding mode (Continuous Wave or Square Wave) and shielding gas type. A study into the phenomenon of weld pool porosity in 304L stainless steel was conducted to better understand and predict how welding parameters impact the weld pool dynamics that lead to pore formation. This work is intended to aid in development and verification of a finite element computer model of weld pool fluid flow dynamics being developed in parallel efforts and assist in weld development activities for the W76 and future RRW programs.

  17. Semiclassical analysis of low and zero energy scattering for one dimensional Schrdinger operators with inverse square potentials

    E-Print Network [OSTI]

    Ovidiu Costin; Wilhelm Schlag; Wolfgang Staubach; Saleh Tanveer

    2008-04-16T23:59:59.000Z

    This paper studies the scattering matrix $\\Sigma(E;\\hbar)$ of the problem \\[ -\\hbar^2 \\psi''(x) + V(x) \\psi(x) = E\\psi(x) \\] for positive potentials $V\\in C^\\infty(\\R)$ with inverse square behavior as $x\\to\\pm\\infty$. It is shown that each entry takes the form $\\Sigma_{ij}(E;\\hbar)=\\Sigma_{ij}^{(0)}(E;\\hbar)(1+\\hbar \\sigma_{ij}(E;\\hbar))$ where $\\Sigma_{ij}^{(0)}(E;\\hbar)$ is the WKB approximation relative to the {\\em modified potential} $V(x)+\\frac{\\hbar^2}{4} \\la x\\ra^{-2}$ and the correction terms $\\sigma_{ij}$ satisfy $|\\partial_E^k \\sigma_{ij}(E;\\hbar)| \\le C_k E^{-k}$ for all $k\\ge0$ and uniformly in $(E,\\hbar)\\in (0,E_0)\\times (0,\\hbar_0)$ where $E_0,\\hbar_0$ are small constants. This asymptotic behavior is not universal: if $-\\hbar^2\\partial_x^2 + V$ has a {\\em zero energy resonance}, then $\\Sigma(E;\\hbar)$ exhibits different asymptotic behavior as $E\\to0$. The resonant case is excluded here due to $V>0$.

  18. Imprints of deviations from the gravitational inverse-square law on the power spectrum of mass fluctuations

    E-Print Network [OSTI]

    M. Sereno; J. A. Peacock

    2006-05-19T23:59:59.000Z

    Deviations from the gravitational inverse-square law would imprint scale-dependent features on the power spectrum of mass density fluctuations. We model such deviations as a Yukawa-like contribution to the gravitational potential and discuss the growth function in a mixed dark matter model with adiabatic initial conditions. Evolution of perturbations is considered in general non-flat cosmological models with a cosmological constant, and an analytical approximation for the growth function is provided. The coupling between baryons and cold dark matter across recombination is negligibly affected by modified gravity physics if the proper cutoff length of the long-range Yukawa-like force is > 10 h^{-1} Mpc. Enhancement of gravity affects the subsequent evolution, boosting large-scale power in a way that resembles the effect of a lower matter density. This phenomenon is almost perfectly degenerate in power-spectrum shape with the effect of a background of massive neutrinos. Back-reaction on density growth from a modified cosmic expansion rate should however also affect the normalization of the power spectrum, with a shape distortion similar to the case of a non-modified background.

  19. 26.1 / M. Doshi 26.1: Low-Frequency Square-Wave Drive for Large Screen LCD-TV

    E-Print Network [OSTI]

    with accurate current control and regulation. The most common electronic ballasts, based on high frequency LCC and removes many of the drawbacks associated with a high frequency drive, including energy loss through26.1 / M. Doshi 26.1: Low-Frequency Square-Wave Drive for Large Screen LCD-TV Backlighting Systems

  20. Search for rare events in [the square root of sigma nu nu] = 200 GeV Au+Au PHOBOS data

    E-Print Network [OSTI]

    Mott, Alexander (Alexander Robert)

    2009-01-01T23:59:59.000Z

    In this analysis, we set an upper bound on the rate of rare events: events whose dN/dn distribution deviates more than statistically from the ensemble average dN/dn distribution for s [the square root of sigma nu nu] = 200 ...

  1. Area and Volume Problems 1. Given the formula for the area of a square, derive the formula for the area of a rectangle

    E-Print Network [OSTI]

    Lee, Carl

    Area and Volume Problems 1. Given the formula for the area of a square, derive the formula for the area of a rectangle of dimensions a and b. 2. Given the formula for the area of a rectangle, derive the formula for the area of a parallelogram of base b and height h. 3. Use calculus to derive the formula

  2. W cross section measurement in the electron channel in pp collisions at [the square root of sigma]= 7 TeV

    E-Print Network [OSTI]

    Everaerts, Pieter Bruno Bart

    2011-01-01T23:59:59.000Z

    From March until November 2010 the Compact Muon Solenoid 36 pb-1 of pp collisions at [the square root of sigma]= 7 TeV. One of the first precision Model that can be performed with this data is the measurement cross section ...

  3. South Africa is shortlisted to host a major scientific facility -the Square Kilometre Array (SKA). The SKA is a next-generation radio telescope

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    South Africa is shortlisted to host a major scientific facility - the Square Kilometre Array (SKA instrument in a radio-quiet area in the arid Karoo region of South Africa's Northern Cape Province. Further the fron- tiers of science and technology, South Africa's SKA project attracts the brightest and most

  4. Proton-? [Proton - lambda] correlations in central Pb + Pb collisions at ?sNN [square root of s subscript NN] =17.3 GeV

    E-Print Network [OSTI]

    Roland, Christof E.

    The momentum correlation between protons and ? [lambda] particles emitted from central Pb+Pb collisions at ?sNN=17.3 [square root of s subscript NN = 17.3] GeV was studied by the NA49 experiment at the CERN Super Proton ...

  5. Measurement of the B+ [B superscript +] Production Cross Section in pp Collisions at ?s=7??[square root of s = 7] TeV

    E-Print Network [OSTI]

    Alver, Burak Han

    Measurements of the total and differential cross sections d?/dpTB [d delta / d p superscript B subscript T] and d?/dyB [d delta / d y superscript B] for B+ [B superscript +] mesons produced in pp collisions at ?s=7?[square ...

  6. Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at [square root of] s=7??TeV

    E-Print Network [OSTI]

    Alver, Burak Han

    A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at ?s=7??[square root of s=7] TeV, is described. The data sample of the ...

  7. Ageing of Natural Rubber under Stress

    E-Print Network [OSTI]

    S. M. Clarke; F. Elias; E. M. Terentjev

    2000-05-04T23:59:59.000Z

    We report a dynamical-mechanical study of stress relaxation at small deformation in a natural (polyisoprene) rubber well above its glass transition temperature Tg. We find that an almost complete relaxation of stress takes place over very long periods of time, even though the elastic network integrity is fully retained. The relaxation rate and the long-time equilibrium modulus are sensitive functions of temperature which do not follow time-temperature superposition. Many characteristic features of non-ergodic ageing response are apparent at both short and very long times. We interpret the observed behaviour in terms of the properties of rubber crosslinks, capable of isomerisation under stress, and relate the results to recent models of soft glassy rheology.

  8. Dark Energy in the Dark Ages

    E-Print Network [OSTI]

    Eric V. Linder

    2006-04-11T23:59:59.000Z

    Non-negligible dark energy density at high redshifts would indicate dark energy physics distinct from a cosmological constant or ``reasonable'' canonical scalar fields. Such dark energy can be constrained tightly through investigation of the growth of structure, with limits of \\la2% of total energy density at z\\gg1 for many models. Intermediate dark energy can have effects distinct from its energy density; the dark ages acceleration can be constrained to last less than 5% of a Hubble e-fold time, exacerbating the coincidence problem. Both the total linear growth, or equivalently \\sigma_8, and the shape and evolution of the nonlinear mass power spectrum for zenergy behavior over the entire range z=0-1100.

  9. Emerging nondestructive inspection methods for aging aircraft

    SciTech Connect (OSTI)

    Beattie, A; Dahlke, L; Gieske, J [and others

    1994-01-01T23:59:59.000Z

    This report identifies and describes emerging nondestructive inspection (NDI) methods that can potentially be used to inspect commercial transport and commuter aircraft for structural damage. The nine categories of emerging NDI techniques are: acoustic emission, x-ray computed tomography, backscatter radiation, reverse geometry x-ray, advanced electromagnetics, including magnetooptic imaging and advanced eddy current techniques, coherent optics, advanced ultrasonics, advanced visual, and infrared thermography. The physical principles, generalized performance characteristics, and typical applications associated with each method are described. In addition, aircraft inspection applications are discussed along with the associated technical considerations. Finally, the status of each technique is presented, with a discussion on when it may be available for use in actual aircraft maintenance programs. It should be noted that this is a companion document to DOT/FAA/CT-91/5, Current Nondestructive Inspection Methods for Aging Aircraft.

  10. Aging management guideline for commercial nuclear power plants - heat exchangers

    SciTech Connect (OSTI)

    Booker, S.; Lehnert, D.; Daavettila, N.; Palop, E.

    1994-06-01T23:59:59.000Z

    This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in commercial nuclear power plant heat exchangers important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

  11. Age discrimination protection is not limited to seniors

    SciTech Connect (OSTI)

    Ossi, G.J. [Vennable, LLP (United States)

    2005-12-15T23:59:59.000Z

    The average age of a coal miner in the USA today is over 50. The Age Discrimination in Employment Act of 1967 (ADEA) protects individuals over 40 years of age from employment discrimination based on age. Under ADEA it is unlawful to discriminate based on an employee's age when hiring, firing, promoting, demoting, laying-off, compensating, assigning or training an employee. The author advocates that, although ADEA can be complicated, the best rule is simply to treat older workers the same as younger workers. Advice is given on considering waivers of ADEA claims.

  12. Local heat transfer distribution in a square channel with 90 continuous, 90 saw tooth profiled and 60 broken ribs

    SciTech Connect (OSTI)

    Gupta, Abhishek; SriHarsha, V.; Prabhu, S.V.; Vedula, R.P. [Department of Mechanical Engineering, IIT Bombay, Powai, Mumbai 400 076 (India)

    2008-02-15T23:59:59.000Z

    Internal channel cooling is employed in advanced gas turbines blade to allow high inlet temperatures so as to achieve high thrust/weight ratios and low specific fuel consumption. The objective of the present study is to measure the local heat transfer distributions in a double wall ribbed square channel with 90 continuous, 90 saw tooth profiled and 60 V-broken ribs. Comparison is made between the 90 continuous ribs (P/e = 7 and 10 for a e/D = 0.15) and 90 saw tooth profiled rib configurations (P/e = 7 for an e/D = 0.15) for the same rib height to the hydraulic diameter ratio (e/D). The effect of pitch to rib height ratio (P/e = 7.5,10 and 12) of 60 V-broken ribbed channel with a constant rib height to hydraulic diameter ratio (e/D) of 0.0625 on the local heat transfer distribution is studied. The Reynolds number based on duct hydraulic diameter is ranging from 10,000 to 30,000. A thin stainless steel foil of 0.05 mm thickness is used as heater and infrared thermography technique is used to obtain the local temperature distribution on the surface. The images are captured in the periodically fully developed region of the channel. It is observed that the heat transfer augmentations in the channel with 90 saw tooth profiled ribs are comparable with those of 90 continuous ribs. The enhancements caused by 60 V-broken ribs are higher than those of 90 continuous ribs. The effect of pitch to the rib height ratio (P/e) is not significant for channel with 60 V-broken ribs for a given rib height to hydraulic diameter ratio (e/D = 0.0625). (author)

  13. Magnetic properties of the S=1/2 square lattice antiferromagnet CuF2(H2O)2(pyz)

    SciTech Connect (OSTI)

    Wang, Cuihuan [ORNL; Lumsden, Mark D [ORNL; Fishman, Randy Scott [ORNL; Ehlers, Georg [ORNL; Hong, Tao [ORNL; Tian, Wei [ORNL; Cao, Huibo [ORNL; Podlesnyak, Andrey A [ORNL; Dunmars, C [Argonne National Laboratory (ANL); Schlueter, J. A. [Argonne National Laboratory (ANL); Manson, J. L. [Eastern Washington University; Christianson, Andrew D [ORNL

    2012-01-01T23:59:59.000Z

    We have performed elastic and inelastic neutron scattering experiments on single crystal samples of the coordination polymer compound CuF{sub 2}(H{sub 2}O){sub 2}(pyz) (pyz = pyrazine) to study the magnetic structure and excitations. The elastic neutron diffraction measurements indicate a collinear antiferromagnetic structure with moments oriented along the [0.7 0 1] real-space direction and an ordered moment of 0.60 {+-} 0.03 {micro}B/Cu. This value is significantly smaller than the single-ion magnetic moment, reflecting the presence of strong quantum fluctuations. The spin wave dispersion from magnetic zone center to the zone boundary points (0.5 1.5 0) and (0.5 0 1.5) can be described by a two-dimensional Heisenberg model with a nearest-neighbor magnetic exchange constant J{sub 2D} = 0.934 {+-} 0.0025 meV. The interlayer interaction J{sub perp} in this compound is less than 1.5% of J{sub 2D}. The spin excitation energy at the (0.5 0.5 0.5) zone boundary point is reduced when compared to the (0.5 1 0.5) zone boundary point by {approx}10.3% {+-} 1.4%. This zone boundary dispersion is consistent with quantum Monte Carlo and series expansion calculations for the S=1/2 Heisenberg square lattice antiferromagnet, which include corrections for quantum fluctuations to linear spin wave theory.

  14. Aging and weathering of cool roofing membranes

    SciTech Connect (OSTI)

    Akbari, Hashem; Berhe, Asmeret A.; Levinson, Ronnen; Graveline,Stanley; Foley, Kevin; Delgado, Ana H.; Paroli, Ralph M.

    2005-08-23T23:59:59.000Z

    Aging and weathering can reduce the solar reflectance of cool roofing materials. This paper summarizes laboratory measurements of the solar spectral reflectance of unweathered, weathered, and cleaned samples collected from single-ply roofing membranes at various sites across the United States. Fifteen samples were examined in each of the following six conditions: unweathered; weathered; weathered and brushed; weathered, brushed and then rinsed with water; weathered, brushed, rinsed with water, and then washed with soap and water; and weathered, brushed, rinsed with water, washed with soap and water, and then washed with an algaecide. Another 25 samples from 25 roofs across the United States and Canada were measured in their unweathered state, weathered, and weathered and wiped. We document reduction in reflectivity resulted from various soiling mechanisms and provide data on the effectiveness of various cleaning approaches. Results indicate that although the majority of samples after being washed with detergent could be brought to within 90% of their unweathered reflectivity, in some instances an algaecide was required to restore this level of reflectivity.

  15. LIGA microsystems aging : evaluation and mitigation.

    SciTech Connect (OSTI)

    Cadden, Charles H.; Yang, Nancy Y. C.; San Marchi, Christopher W.

    2003-12-01T23:59:59.000Z

    The deployment of LIGA structures in DP applications requires a thorough understanding of potential long term physical and chemical changes that may occur during service. While these components are generally fabricated from simple metallic systems such as copper, nickel and nickel alloys, the electroplating process used to form them creates microstructural features which differ from those found in conventional (e.g. ingot metallurgy) processing of such materials. Physical changes in non-equilibrium microstructures may occur due to long term exposure to temperatures sufficient to permit atomic and vacancy mobility. Chemical changes, particularly at the surfaces of LIGA parts, may occur in the presence of gaseous chemical species (e.g. water vapor, HE off-gassing compounds) and contact with other metallic structures. In this study, we have characterized the baseline microstructure of several nickel-based materials that are used to fabricate LIGA structures. Solute content and distribution was found to have a major effect on the electroplated microstructures. Microstructural features were correlated to measurements of hardness and tensile strength. Dormancy testing was conducted on one of the baseline compositions, nickel-sulfamate. Groups of specimens were exposed to controlled thermal cycles; subsequent examinations compared properties of 'aged' specimens to the baseline conditions. Results of our testing indicate that exposure to ambient temperatures (-54 C to 71 C) do not result in microstructural changes that might be expected to significantly effect mechanical performance. Additionally, no localized changes in surface appearance were found as a result of contact between electroplated parts.

  16. Chelation: A Fundamental Mechanism of Action of AGE Inhibitors, AGE Breakers, and Other Inhibitors of Diabetes Complications

    SciTech Connect (OSTI)

    Nagai, Rhoji; Murray, David B.; Metz, Thomas O.; Baynes, John

    2012-03-01T23:59:59.000Z

    Advanced glycation or glycoxidation end-products (AGE) increase in tissue proteins with age, and their rate of accumulation is increased in diabetes, nephropathy and inflammatory diseases. AGE inhibitors include a range of compounds that are proposed to act by trapping carbonyl and dicarbonyl intermediates in AGE formation. However, some among the newer generation of AGE inhibitors lack reactive functional groups that would trap reaction intermediates, indicating an alternative mechanism of action. We propose that AGE inhibitors function primarily as chelators, inhibiting metal-catalyzed oxidation reactions. The AGE-inhibitory activity of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers is also consistent with their chelating activity. Finally, compounds described as AGE breakers, or their hydrolysis products, also have strong chelating activity, suggesting that these compounds also act through their chelating activity. We conclude that chelation is the common, and perhaps the primary, mechanism of action of AGE inhibitors and breakers, and that chronic, mild chelation therapy should prove useful in treatment of diabetes and age-related diseases characterized by oxidative stress, inflammation and increased chemical modification of tissue proteins by advanced glycoxidation and lipoxidation end-products.

  17. Spectro-Microscopic Measurements of Carbonaceous Aerosol Aging...

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

    of Carbonaceous Aerosol Aging in Central California. Abstract: Carbonaceous aerosols are responsible for large uncertainties in climate models, degraded visibility, and...

  18. aging colloidal glass: Topics by E-print Network

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

    Matter (arXiv) Summary: We use confocal microscopy to directly visualize the dynamics of aging colloidal glasses. We prepare a colloidal suspension at high density, a...

  19. aged patients usefulness: Topics by E-print Network

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

    (6-month old, 12-month old, and adult) based on auditory event-related potentials Reilly, James P. 34 USING OBJECTIVE CRITERIA AND MULTIPLE REGRESSION MODELS FOR AGE...

  20. accelerated aging studies: Topics by E-print Network

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

    the nominal one, increasing background and pile-up event probability. This requires detector performances which are currently under study in intensive R&D activities. Aging is...

  1. age spectrum epidemiology: Topics by E-print Network

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

    of a young supernova. We associate this break with the phenomenon of synchrotron aging of radiating electrons. From the break in the spectrum we calculate the magnetic field...

  2. aging aircraft wiring: Topics by E-print Network

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

    energy of the particle detected. Nevertheless, many factors can contribute to detector aging effects which are visible in a loss of gain caused by deposition of contaminants on...

  3. age xenocrystic zircons: Topics by E-print Network

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

    zircon age populations suggest that deposition of the extensive 1 km-thick clastic sequence at the base of the cover succession commenced in latest Neoproterozoic and terminated...

  4. age experimental analysis: Topics by E-print Network

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

    Websites Summary: , by improving the seismic hazard evaluation using probabilistic seismic hazard assessment (PSHA) methodsSeismic vulnerability assessment to slight dam- age...

  5. age mexican children: Topics by E-print Network

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

    surface area, and thickness measures were obtained. Anxiety symptoms were 18 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

  6. age children group: Topics by E-print Network

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

    surface area, and thickness measures were obtained. Anxiety symptoms were 22 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

  7. aged children hbsc: Topics by E-print Network

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

    surface area, and thickness measures were obtained. Anxiety symptoms were 13 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

  8. age children preliminary: Topics by E-print Network

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

    surface area, and thickness measures were obtained. Anxiety symptoms were 17 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

  9. Aging Impairs Myocardial Fatty Acid and Ketone Oxidation and...

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

    that aging modifies substrate utilization and alters insulin sensitivity in mouse heart when provided multiple substrates. In vivo cardiac function was measured with...

  10. age metamorphic history: Topics by E-print Network

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

    (TRFs) shorten predictably with age in a particular tissue Vleck, Carol 11 Thermal and Impact History of the H Chondrite Parent Asteroid during Metamorphism: Constraints from...

  11. Schistosomiasis models with density dependence and age of ...

    E-Print Network [OSTI]

    2002-04-08T23:59:59.000Z

    type of validation concerning the new features being added and the extent to ... an age structure in the class of infected snails, since their cercarial production.

  12. age tumor size: Topics by E-print Network

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

    alternate body arches, fin cartilage 422 AGE AND GROWTH OF SKIPJACK TUNA, KATSUWONUS PELAMIS, AND YELLOWFIN TUNA, THUNNUS ALBACARES, AS INDICATED Environmental Sciences and...

  13. Influence of Aging and Environment on Nanoparticle Chemistry...

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

    of cerium in cerium oxide nanoparticles is studied in detail. The influence of synthesis medium, aging time and local environment on the oxidation state switching, between +3 and...

  14. Bacteria and the Aging and Longevity of Caenorhabditis elegans

    E-Print Network [OSTI]

    Kim, Dennis H.

    The molecular genetic analysis of longevity of Caenorhabditis elegans has yielded fundamental insights into evolutionarily conserved pathways and processes governing the physiology of aging. Recent studies suggest that ...

  15. aged adults: Topics by E-print Network

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

    The "Aging in Place" project strives to delay taking that first step away from the family home. Through the careful placement of technological support we believe older...

  16. Notes on Groundwater Age in Forward and Inverse Modeling

    E-Print Network [OSTI]

    Ginn, Timothy R.; Haeri, Hanieh; Massoudieh, Arash; Foglia, Laura

    2009-01-01T23:59:59.000Z

    from radiocarbon dating of groundwater and numerical ?ow andReply to Comment on groundwater age, life expectancy andanalysis of regional groundwater ?ow. 2. Effect of water-

  17. age care managers: Topics by E-print Network

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

    2 Managing Prosperity: Estate and Retirement Planning for All Ages Planning for Long-Term Health Care Computer Technologies and Information Sciences Websites Summary: 15 million by...

  18. Attitudes to ageing : a systematic review of attitudes to ageing and mental health, and a cross-sectional analysis of attitudes to ageing and quality of life in older adults

    E-Print Network [OSTI]

    Long, Sarah Charlotte May

    2014-07-01T23:59:59.000Z

    This thesis portfolio examines attitudes to ageing in older adults, and explores the impact that attitudes to ageing have on mental health status and quality of life. Attitudes to ageing are becoming more widely measured ...

  19. Theoretical foundation for measuring the groundwater age distribution.

    SciTech Connect (OSTI)

    Gardner, William Payton; Arnold, Bill Walter

    2014-01-01T23:59:59.000Z

    In this study, we use PFLOTRAN, a highly scalable, parallel, flow and reactive transport code to simulate the concentrations of 3H, 3He, CFC-11, CFC-12, CFC-113, SF6, 39Ar, 81Kr, 4He and themean groundwater age in heterogeneous fields on grids with an excess of 10 million nodes. We utilize this computational platform to simulate the concentration of multiple tracers in high-resolution, heterogeneous 2-D and 3-D domains, and calculate tracer-derived ages. Tracer-derived ages show systematic biases toward younger ages when the groundwater age distribution contains water older than the maximum tracer age. The deviation of the tracer-derived age distribution from the true groundwater age distribution increases with increasing heterogeneity of the system. However, the effect of heterogeneity is diminished as the mean travel time gets closer the tracer age limit. Age distributions in 3-D domains differ significantly from 2-D domains. 3D simulations show decreased mean age, and less variance in age distribution for identical heterogeneity statistics. High-performance computing allows for investigation of tracer and groundwater age systematics in high-resolution domains, providing a platform for understanding and utilizing environmental tracer and groundwater age information in heterogeneous 3-D systems. Groundwater environmental tracers can provide important constraints for the calibration of groundwater flow models. Direct simulation of environmental tracer concentrations in models has the additional advantage of avoiding assumptions associated with using calculated groundwater age values. This study quantifies model uncertainty reduction resulting from the addition of environmental tracer concentration data. The analysis uses a synthetic heterogeneous aquifer and the calibration of a flow and transport model using the pilot point method. Results indicate a significant reduction in the uncertainty in permeability with the addition of environmental tracer data, relative to the use of hydraulic measurements alone. Anthropogenic tracers and their decay products, such as CFC11, 3H, and 3He, provide significant constraint oninput permeability values in the model. Tracer data for 39Ar provide even more complete information on the heterogeneity of permeability and variability in the flow system than the anthropogenic tracers, leading to greater parameter uncertainty reduction.

  20. Living and Dying Abroad: Aspects of Egyptian Cultural Identity in Late Bronze Age and Early Iron Age Canaan

    E-Print Network [OSTI]

    Pierce, Krystal Victoria Lords

    2013-01-01T23:59:59.000Z

    74 lamps, one biconical strainer-spouted jug, one pyxis, 25Age pottery like the biconical strainer- spouted jug and theand bronze juglet, strainer, lamp, and deep hemispherical

  1. THE ROLE OF AGING AND ONCE-THROUGH-COOLED POWER

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION THE ROLE OF AGING AND ONCE-THROUGH-COOLED POWER PLANTS IN CALIFORNIA Nyberg, Darryl Metz, Connie Leni. 2009. The Role of Aging and Once-Through-Cooled Power Plants .......................................9 The Performance of Once-Through-Cooled Power Plants 2002

  2. AGEING NORTH AMERICAN LANDBIRDS BY MOLT LIMITS AND PLUMAGE CRITERIA

    E-Print Network [OSTI]

    DeSante, David F.

    TO THE IDENTIFICATION GUIDE TO NORTH AMERICAN BIRDS, PART I Dan Froehlich Slate Creek Press #12;AGEING NORTH AMERICAN TO NORTH AMERICAN BIRDS, PART I Dan Froehlich Slate Creek Press Bolinas, California #12;Ageing North by David F. DeSante, Peter Pyle, and Nicole Michel for Slate Creek Press, P.O. Box 219, Bolinas, California

  3. Communicating Coastal Risk Analysis in an Age of Climate Change

    E-Print Network [OSTI]

    Communicating Coastal Risk Analysis in an Age of Climate Change TR-11-04 Brian Blanton, John Mc in an Age of Climate Change Brian Blanton, John McGee, Oleg Kapeljushnik Renaissance Computing Institute of climate change complicates matters further. An immersive visualization environment integrating data from

  4. aging materials: Topics by E-print Network

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

    aging materials 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 Ageing and Rheology in Soft Materials...

  5. Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded Verification Concluding Remarks Part II (Companion presentation) Asphalt Pavements Effect of Aging: Asphalt concrete pavements (Part II) E1 E2 E3 Eh 1 2 3 h #12;Graded Finite Elements Graded Elements

  6. Revised isotopic (40 Ar) age for the lamproite volcano of

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Revised isotopic (40 Ar/39 Ar) age for the lamproite volcano of Cabezos Negros, Fortuna Basin (lamproites) of the Fortuna Basin in southeast Spain. This age is significantly older than earlier reported K. Because the volcanic rocks are intercalated in the stratigraphic sequence of the Fortuna Basin directly

  7. International Trade in Natural Gas: Golden Age of LNG?

    E-Print Network [OSTI]

    Gabrieli, John

    International Trade in Natural Gas: Golden Age of LNG? Yichen Du and Sergey Paltsev Report No. 271;1 International Trade in Natural Gas: Golden Age of LNG? Yichen Du* and Sergey Paltsev* Abstract The introduction of liquefied natural gas (LNG) as an option for international trade has created a market for natural gas where

  8. Czech Archaeologists in Uzbekistan Discover Bronze Age Irrigation System

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Czech Archaeologists in Uzbekistan Discover Bronze Age Irrigation System Compiled 20.11.2014 16 they discovered was settlements dating back to the Iron and Bronze Ages, including a well-preserved irrigation system. The Paschurt Valley is located in the south of Uzbekistan, a country which has become

  9. Lading of the Late Bronze Age ship at Uluburun

    E-Print Network [OSTI]

    Lin, Shih-Han Samuel

    2012-08-29T23:59:59.000Z

    clear indication of a Late Bronze Age site. This find was of considerable interest as very little is known about seafaring, long distance trade, and ship construction during the Late Bronze Age, except for a glimpse provided by the Cape Gelidonya...

  10. Aging management guideline for commercial nuclear power plants-pumps

    SciTech Connect (OSTI)

    Booker, S.; Katz, D.; Daavettila, N.; Lehnert, D. [MDC-Ogden Environmental and Energy Services, Southfield, MI (United States)

    1994-03-01T23:59:59.000Z

    This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in BWR and PWR commercial nuclear power plant pumps important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

  11. EVOLUTION OF AGING AND LATE LIFE Casandra L. Rauser, Laurence D. Mueller,

    E-Print Network [OSTI]

    Rose, Michael R.

    551 18 EVOLUTION OF AGING AND LATE LIFE Casandra L. Rauser, Laurence D. Mueller, Michael Travisano of Aging Specific Population Genetic Hypotheses for Aging THE ROLE OF EXPERIMENTAL EVOLUTION IN TESTING HAMILTONIAN THEORIES OF AGING Laboratory Evolution of Aging Experimental Population Genetics of Aging

  12. An assessment of fire vulnerability for aged electrical relays

    SciTech Connect (OSTI)

    Vigil, R.A. [Sandia National Labs., Albuquerque, NM (United States)]|[Science and Engineering Associates, Inc., Albuquerque, NM (United States); Nowlen, S.P. [Sandia National Labs., Albuquerque, NM (United States)

    1995-03-01T23:59:59.000Z

    There has been some concern that, as nuclear power plants age, protective measures taken to control and minimize the impact of fire may become ineffective, or significantly less effective, and hence result in an increased fire risk. One objective of the Fire Vulnerability of Aged Electrical Components Program is to assess the effects of aging and service wear on the fire vulnerability of electrical equipment. An increased fire vulnerability of components may lead to an overall increase in fire risk to the plant. Because of their widespread use in various electrical safety systems, electromechanical relays were chosen to be the initial components for evaluation. This test program assessed the impact of operational and thermal aging on the vulnerability of these relays to fire-induced damage. Only thermal effects of a fire were examined in this test program. The impact of smoke, corrosive materials, or fire suppression effects on relay performance were not addressed in this test program. The purpose of this test program was to assess whether the fire vulnerability of electrical relays increased with aging. The sequence followed for the test program was to: identify specific relay types, develop three fire scenarios, artificially age several relays, test the unaged and aged relays in the fire exposure scenarios, and compare the results. The relays tested were Agastat GPI, General Electric (GE) HMA, HGA, and HFA. At least two relays of each type were artificially aged and at least two relays of each type were new. Relays were operationally aged by cycling the relay under rated load for 2,000 operations. These relays were then thermally aged for 60 days with their coil energized.

  13. PIXE, Micro-PIXE and RBS Analysis of Thermal Aged Rubber Material : On The Additives Behaviour Versus Aging Time

    E-Print Network [OSTI]

    Boyer, Edmond

    PIXE, Micro-PIXE and RBS Analysis of Thermal Aged Rubber Material : On The Additives Behaviour Villeurbanne Cedex-France. ABSTRACT PIXE, micro-PIXE and RBS techniques were employed to monitor the behaviour of the rubber material itself. Keywords : PIXE, micro-PIXE, RBS, Rubber, Thermal Aging, Segregation, Additives

  14. Invariance of Structure in an Aging Colloidal Glass

    E-Print Network [OSTI]

    Gianguido C. Cianci; Rachel E. Courtland; Eric R. Weeks

    2005-11-11T23:59:59.000Z

    We study concentrated colloidal suspensions, a model system which has a glass transition. The non-equilibrium nature of the glassy state is most clearly highlighted by aging -- the dependence of the system's properties on the time elapsed since vitrification. Fast laser scanning confocal microscopy allows us to image a colloidal glass and track the particles in three dimensions. We analyze the static structure in terms of tetrahedral packing. We find that while the aging of the suspension clearly affects its dynamics, none of the geometrical quantities associated with tetrahedra change with age.

  15. From chi-squared to Bayesian model comparison and Levy expansions of Bose-Einstein correlations in e+e- reactions

    E-Print Network [OSTI]

    Michiel B. De Kock; Hans C. Eggers; Tams Csrg?

    2012-06-08T23:59:59.000Z

    The usual chi-squared method of fit quality assessment is a special case of the more general method of Bayesian model comparison which involves integrals of the likelihood and prior over all possible values of all parameters. We introduce new parametrisations based on systematic expansions around the stretched exponential or Fourier-transformed L\\'evy source distribution, and utilise the increased discriminating power of the Bayesian approach to evaluate the relative probability of these models to be true representations of a recently measured Bose-Einstein correlation data in e+e- annihilations at LEP.

  16. Two-dimensional equations of the surface harmonics method for solving problems of spatial neutron kinetics in square-lattice reactors

    SciTech Connect (OSTI)

    Boyarinov, V. F., E-mail: boyarinov@dhtp.kiae.ru; Kondrushin, A. E., E-mail: kondrushin@yahoo.com; Fomichenko, P. A. [National Research Center Kurchatov Institute (Russian Federation)

    2014-12-15T23:59:59.000Z

    Two-dimensional time-dependent finite-difference equations of the surface harmonics method (SHM) for the description of the neutron transport are derived for square-lattice reactors. These equations are implemented in the SUHAM-TD code. Verification of the derived equations and the developed code are performed by the example of known test problems, and the potential and efficiency of the SHM as applied to the solution of the time-dependent neutron transport equation in the diffusion approximation in two-dimensional geometry are demonstrated. These results show the substantial advantage of SHM over direct finite-difference modeling in computational costs.

  17. Power Challenges of Large Scale Research Infrastructures: the Square Kilometer Array and Solar Energy Integration; Towards a zero-carbon footprint next generation telescope

    E-Print Network [OSTI]

    Barbosa, Domingos; Ruiz, Valeriano; Silva, Manuel; Verdes-Montenegro, Lourdes; Santander-Vela, Juande; Maia, Dalmiro; Antn, Sonia; van Ardenne, Arnold; Vetter, Matthias; Kramer, Michael; Keller, Reinhard; Pereira, Nuno; Silva, Vitor

    2012-01-01T23:59:59.000Z

    The Square Kilometer Array (SKA) will be the largest Global science project of the next two decades. It will encompass a sensor network dedicated to radioastronomy, covering two continents. It will be constructed in remote areas of South Africa and Australia, spreading over 3000Km, in high solar irradiance latitudes. Solar Power supply is therefore an option to power supply the SKA and contribute to a zero carbon footprint next generation telescope. Here we outline the major characteristics of the SKA and some innovation approaches on thermal solar energy Integration with SKA prototypes.

  18. Low-rank approximations for large stationary covariance matrices, as used in the Bayesian and generalized-least-squares analysis of pulsar-timing data

    E-Print Network [OSTI]

    Rutger van Haasteren; Michele Vallisneri

    2014-07-24T23:59:59.000Z

    Many data-analysis problems involve large dense matrices that describe the covariance of stationary noise processes; the computational cost of inverting these matrices, or equivalently of solving linear systems that contain them, is often a practical limit for the analysis. We describe two general, practical, and accurate methods to approximate stationary covariance matrices as low-rank matrix products featuring carefully chosen spectral components. These methods can be used to greatly accelerate data-analysis methods in many contexts, such as the Bayesian and generalized-least-squares analysis of pulsar-timing residuals.

  19. The Effects of Ageing on Memory and Thinking

    E-Print Network [OSTI]

    Ford, Amanda

    2007-01-01T23:59:59.000Z

    The main aim of the present study is to examine the effects of ageing on memory and thinking by examining verbal fluency performance. More specifically looking at the differences between older and younger people, to ...

  20. Solar System impact rates measured from lunar spherule ages

    E-Print Network [OSTI]

    Muller, Richard A.

    . The samples were irradiated with fast neutrons for 100 hours at the Oregon State University Reactor. Each measured using a MAP 215-C noble gas mass spectrometer. Spherule ages were determined using the 40 Ar/39 Ar

  1. ageing seed pools: Topics by E-print Network

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

    of the methods, expense, and logistics of sample collection. The ability to inventory wild populations would be greatly expanded if pooled adult age-class data (e.g.,...

  2. Multisensory integration of social information in adult aging

    E-Print Network [OSTI]

    Hunter, Edyta Monika

    2011-01-01T23:59:59.000Z

    Efficient navigation of our social world depends on the generation, interpretation and combination of social signals within different sensory systems. However, the influence of adult aging on cross-modal integration of emotional stimuli remains...

  3. age infant sex: Topics by E-print Network

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

    old, 12-month old, and adult) based on auditory event-related potentials Reilly, James P. 13 RESEARCH ARTICLE Open Access Sex-related differences and age of peak Physics...

  4. advancing age potential: Topics by E-print Network

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

    old, 12-month old, and adult) based on auditory event-related potentials Reilly, James P. 10 Paradoxical down?regulation of p16 INK4a mRNA with advancing age in Acute...

  5. aging degradation study: Topics by E-print Network

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

    detector performances which are currently under study in intensive R&D activities. Aging is one of the key issues for a high-luminosity LHC application. For this reason, we...

  6. ageing electronic systems: Topics by E-print Network

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

    of the relative merits of competing file system designs. In addition to describing our aging tools, we demonstrate their use by applying them to evaluate two enhancements to the...

  7. aging decreases expression: Topics by E-print Network

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

    interacting sensory stimuli... Duncan, Nikki 2013-03-13 35 Analysis of Telomere Length in the Aged mdx Diaphragm with and without Transgenic IGF-I Expression CiteSeer...

  8. Maximum Entry and Mandatory Separation Ages for Certain Security Employees

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

    2001-10-11T23:59:59.000Z

    The Policy in response to government-wide Office of Personnel Management regulations regarding establishment of mandatory retirement ages for employees in certain security related positions. Superseded by DOE P 310.1 Admin Chg 1, 12-1-11.

  9. Enzyme Structure Provides Insights into Cancer and Aging

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

    Enzyme Structure Provides Insights into Cancer and Aging Print XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair mechanism...

  10. administration normative aging: Topics by E-print Network

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

    U.S:pr.aoa.dhhs.govaoastatsaging21demography.html . Administration on Aging. 1999. Profile of Older Americans: 1999. U.S. Department:pr.aoa.dhhs.govaoastatsprofile...

  11. Health, Ageing and Ethnicity: A Retrospective and Prospects

    E-Print Network [OSTI]

    Health, Ageing and Ethnicity: A Retrospective and Prospects Naina Patel, PhD. Dr. Patel called Minority Elderly Care (MEC) under the EC 5th Framework Research Programme. Formerly the UK

  12. Cognitive training in schizophrenia: golden age or wild west?

    E-Print Network [OSTI]

    Vinogradov, Sophia

    2013-01-01T23:59:59.000Z

    Golden Age or Wild West? Sophia Vinogradov, Melissa Fisher,Address correspondence to Sophia Vinogradov, M.D. , 116AFrancisco, CA 94121; E-mail: sophia. vinogradov@ucsf.edu.

  13. System to estimate ages and redshifts for radio galaxies

    E-Print Network [OSTI]

    O. V. Verkhodanov; A. I. Kopylov; N. V. Verkhodanova; O. P. Zhelenkova; V. N. Chernenkov; Yu. N. Parijskij; N. S. Soboleva; A. V. Temirova

    2001-12-06T23:59:59.000Z

    The system allowing a user to operate with simulated curves of spectral energy distribution (SED) and to estimate ages and redshifts by photometric data at server {\\bf sed.sao.ru} is described.

  14. Figure 2. Stratigraphic Summary of Ages, Names and Rock Types...

    Gasoline and Diesel Fuel Update (EIA)

    2. Stratigraphic Summary of Ages, Names and Rock Types in the ANWR 1002 and Coastal Plain Area of the Alaska North Slope. Potentially Productive Reservoirs and Plays Assessed by...

  15. r Journalof Geology LATE ARCHEAN ZIRCON AGES 419

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    sows t at t e popu a Ion 0 zIrcons in the banded granulite Ch Zr I, which record ages 238UfO6Pb at 2622

  16. arabian iron age: Topics by E-print Network

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

    iron deficiency should be the goal of nutritional intervention programs. In the United States, approximately 5 % of children from 1-5 years of age suffer from iron deficiency...

  17. ageing study bhas: Topics by E-print Network

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

    Growing-Stock Study at Age 401 William W. Oliver2 Abstract in the southwestern United States (Oliver and Ryker 1990). Throughout this vast area ponderosa pine is one of the most...

  18. aging study bhas: Topics by E-print Network

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

    Growing-Stock Study at Age 401 William W. Oliver2 Abstract in the southwestern United States (Oliver and Ryker 1990). Throughout this vast area ponderosa pine is one of the most...

  19. The Age of the Galaxy from Thorium Cosmochronometry

    E-Print Network [OSTI]

    C. Sneden; J. J. Cowan

    2000-08-11T23:59:59.000Z

    The long-lived radioactive element thorium can potentially provide a simple and direct clock to determine the age of our Galaxy. Spectroscopic investigations of thorium in metal-poor stars have yielded some promising initial results. We discuss the major observational and theoretical limitations in thorium cosmochronometry, and point out the ways in which the implied Galactic ages from thorium abundances can be made more accurate.

  20. VOLUME 86, NUMBER 8 P H Y S I C A L R E V I E W L E T T E R S 19 FEBRUARY 2001 Submillimeter Test of the Gravitational Inverse-Square Law

    E-Print Network [OSTI]

    of the Gravitational Inverse-Square Law: A Search for "Large" Extra Dimensions C. D. Hoyle, U. Schmidt, B. R. Heckel, E-dimensional theories that predict new effects, we tested the gravitational 1 r2 law at separations ranging down to 218 ranges l 0.1 mm [11]. This Letter reports results of a test of gravitational inverse-square law at length

  1. Accident sequence precursor events with age-related contributors

    SciTech Connect (OSTI)

    Murphy, G.A.; Kohn, W.E.

    1995-12-31T23:59:59.000Z

    The Accident Sequence Precursor (ASP) Program at ORNL analyzed about 14.000 Licensee Event Reports (LERs) filed by US nuclear power plants 1987--1993. There were 193 events identified as precursors to potential severe core accident sequences. These are reported in G/CR-4674. Volumes 7 through 20. Under the NRC Nuclear Plant Aging Research program, the authors evaluated these events to determine the extent to which component aging played a role. Events were selected that involved age-related equipment degradation that initiated an event or contributed to an event sequence. For the 7-year period, ORNL identified 36 events that involved aging degradation as a contributor to an ASP event. Except for 1992, the percentage of age-related events within the total number of ASP events over the 7-year period ({approximately}19%) appears fairly consistent up to 1991. No correlation between plant ape and number of precursor events was found. A summary list of the age-related events is presented in the report.

  2. Effect of component aging on PWR control rod drive systems

    SciTech Connect (OSTI)

    Grove, E.; Gunther, W.; Sullivan, K.

    1992-01-01T23:59:59.000Z

    An aging assessment of PWR control rod drive (CRD) systems has been completed as part of the US NRC Nuclear Plant Aging Research (NPAR) Program. The design, construction, maintenance, and operation of the Babcock Wilcox (B W), Combustion Engineering (CE), and Westinghouse (W) systems were evaluated to determine the potential for degradation as each system ages. Operating experience data were evaluated to identify the predominant failure modes, causes, and effects. This, coupled with an assessment of the materials of construction and operating environment, demonstrate that each design is subject to degradation, which if left unchecked, could affect its safety function as the plant ages. An industry survey, conducted with the assistance of EPRI and NUMARC, identified current CRD system maintenance and inspection practices. The results of this survey indicate that some plants have performed system modifications, replaced components, or augmented existing preventive maintenance practices in response to system aging. The survey results also supported the operating experience data, which concluded that the timely replacement of degraded components, prior to failure, was not always possible using existing condition monitoring techniques. The recommendations presented in this study also include a discussion of more advanced monitoring techniques, which provide trendable results capable of detecting aging.

  3. Effect of component aging on PWR control rod drive systems

    SciTech Connect (OSTI)

    Grove, E.; Gunther, W.; Sullivan, K.

    1992-06-01T23:59:59.000Z

    An aging assessment of PWR control rod drive (CRD) systems has been completed as part of the US NRC Nuclear Plant Aging Research (NPAR) Program. The design, construction, maintenance, and operation of the Babcock & Wilcox (B & W), Combustion Engineering (CE), and Westinghouse (W) systems were evaluated to determine the potential for degradation as each system ages. Operating experience data were evaluated to identify the predominant failure modes, causes, and effects. This, coupled with an assessment of the materials of construction and operating environment, demonstrate that each design is subject to degradation, which if left unchecked, could affect its safety function as the plant ages. An industry survey, conducted with the assistance of EPRI and NUMARC, identified current CRD system maintenance and inspection practices. The results of this survey indicate that some plants have performed system modifications, replaced components, or augmented existing preventive maintenance practices in response to system aging. The survey results also supported the operating experience data, which concluded that the timely replacement of degraded components, prior to failure, was not always possible using existing condition monitoring techniques. The recommendations presented in this study also include a discussion of more advanced monitoring techniques, which provide trendable results capable of detecting aging.

  4. Evidence of aging effects on certain safety-related components

    SciTech Connect (OSTI)

    Magleby, H.L.; Atwood, C.L.; MacDonald, P.E.; Edson, J.L.; Bramwell, D.L. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)

    1996-01-01T23:59:59.000Z

    In response to interest shown by the Nuclear Energy Agency (NEA), Principal Working Group I (PWG- 1) of the Committee on the Safety of Nuclear Installations (CSNI) conducted a generic study on the effects of aging of active components in nuclear power plants. (This focus on active components is consistent with PWG-l`s mandate; passive components are primarily within the mandate of PWG-3.) Representatives from France, Sweden, Finland, Japan, the United States, and the United Kingdom participated in the study by submitting reports documenting aging studies performed in their countries. This report consists of summaries of those reports, along with a comparison of the various statistical analysis methods used in the studies. The studies indicate that with some exceptions, active components generally do not present a significant aging problem in nuclear power plants. Design criteria and effective preventative maintenance programs, including timely replacement of components, are effective in mitigating potential aging problems. However, aging studies (such as qualitative and statistical analyses of failure modes and maintenance data) are an important part of efforts to identify and solve potential aging problems. Solving these problems typically includes such strategies as replacing suspect components with improved components, and implementing improved maintenance programs.

  5. Aging study of boiling water reactor high pressure injection systems

    SciTech Connect (OSTI)

    Conley, D.A.; Edson, J.L.; Fineman, C.F. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)

    1995-03-01T23:59:59.000Z

    The purpose of high pressure injection systems is to maintain an adequate coolant level in reactor pressure vessels, so that the fuel cladding temperature does not exceed 1,200{degrees}C (2,200{degrees}F), and to permit plant shutdown during a variety of design basis loss-of-coolant accidents. This report presents the results of a study on aging performed for high pressure injection systems of boiling water reactor plants in the United States. The purpose of the study was to identify and evaluate the effects of aging and the effectiveness of testing and maintenance in detecting and mitigating aging degradation. Guidelines from the United States Nuclear Regulatory Commission`s Nuclear Plant Aging Research Program were used in performing the aging study. Review and analysis of the failures reported in databases such as Nuclear Power Experience, Licensee Event Reports, and the Nuclear Plant Reliability Data System, along with plant-specific maintenance records databases, are included in this report to provide the information required to identify aging stressors, failure modes, and failure causes. Several probabilistic risk assessments were reviewed to identify risk-significant components in high pressure injection systems. Testing, maintenance, specific safety issues, and codes and standards are also discussed.

  6. Age characteristics in a multidecadal Arctic sea ice simulation

    SciTech Connect (OSTI)

    Hunke, Elizabeth C [Los Alamos National Laboratory; Bitz, Cecllia M [UNIV. OF WASHINGTON

    2008-01-01T23:59:59.000Z

    Results from adding a tracer for age of sea ice to a sophisticated sea ice model that is widely used for climate studies are presented. The consistent simulation of ice age, dynamics, and thermodynamics in the model shows explicitly that the loss of Arctic perennial ice has accelerated in the past three decades, as has been seen in satellite-derived observations. Our model shows that the September ice age average across the Northern Hemisphere varies from about 5 to 8 years, and the ice is much younger (about 2--3 years) in late winter because of the expansion of first-year ice. We find seasonal ice on average comprises about 5% of the total ice area in September, but as much as 1.34 x 10{sup 6} km{sup 2} survives in some years. Our simulated ice age in the late 1980s and early 1990s declined markedly in agreement with other studies. After this period of decline, the ice age began to recover, but in the final years of the simulation very little young ice remains after the melt season, a strong indication that the age of the pack will again decline in the future as older ice classes fail to be replenished. The Arctic ice pack has fluctuated between older and younger ice types over the past 30 years, while ice area, thickness, and volume all declined over the same period, with an apparent acceleration in the last decade.

  7. OCEAN VOLCANO CAUGHT ON FILM Footage of a volcanic eruption nearly 1,200 metres under the sea was unveiled on 17 December at a meeting of

    E-Print Network [OSTI]

    Rosenberg, Noah

    that lava has been caught flowing on the deep sea floor. Jason, the remotely operated vehicle that took `knowledge innovation communities' (KICs). The scheme is meant to foster greater research collaboration Solar going public: Solyndra, a photovoltaics manufacturer based in Fremont, California, filed

  8. A research tool for long-term and continuous analysis of fish assemblage in coral-reefs using underwater camera footage

    E-Print Network [OSTI]

    Fisher, Bob

    A research tool for long-term and continuous analysis of fish assemblage in coral-reefs using a better understanding of a complex environment such as a coral reef, collecting data for long-term monitoring of these environments is essential. Long-term monitoring of a coral reef environment can however

  9. Bronze metallurgy in Iron Age central Europe : a metallurgical study of Early Iron Age bronzes from Sti?na, Slovenia.

    E-Print Network [OSTI]

    Cooney, Elizabeth Myers

    2007-01-01T23:59:59.000Z

    The Early Iron Age (750-450 BCE) marks a time in the European Alpine Region in which cultural ideologies surrounding bronze objects and bronze production were changing. Iron was becoming the preferred material from which ...

  10. Adapting Dry Cask Storage for Aging at a Geologic Repository

    SciTech Connect (OSTI)

    C. Sanders; D. Kimball

    2005-08-02T23:59:59.000Z

    A Spent Nuclear Fuel (SNF) Aging System is a crucial part of operations at the proposed Yucca Mountain repository in the United States. Incoming commercial SNF that does not meet thermal limits for emplacement will be aged on outdoor pads. U.S. Department of Energy SNF will also be managed using the Aging System. Proposed site-specific designs for the Aging System are closely based upon designs for existing dry cask storage (DCS) systems. This paper evaluates the applicability of existing DCS systems for use in the SNF Aging System at Yucca Mountain. The most important difference between existing DCS facilities and the Yucca Mountain facility is the required capacity. Existing DCS facilities typically have less than 50 casks. The current design for the aging pad at Yucca Mountain calls for a capacity of over 2,000 casks (20,000 MTHM) [1]. This unprecedented number of casks poses some unique problems. The response of DCS systems to off-normal and accident conditions needs to be re-evaluated for multiple storage casks. Dose calculations become more complicated, since doses from multiple or very long arrays of casks can dramatically increase the total boundary dose. For occupational doses, the geometry of the cask arrays and the order of loading casks must be carefully considered in order to meet ALARA goals during cask retrieval. Due to the large area of the aging pad, skyshine must also be included when calculating public and worker doses. The expected length of aging will also necessitate some design adjustments. Under 10 CFR 72.236, DCS systems are initially certified for a period of 20 years [2]. Although the Yucca Mountain facility is not intended to be a storage facility under 10 CFR 72, the operational life of the SNF Aging System is 50 years [1]. Any cask system selected for use in aging will have to be qualified to this design lifetime. These considerations are examined, and a summary is provided of the adaptations that must be made in order to use DCS technologies successfully at a geologic repository.

  11. GABAergic systems in a model of age-related cognitive impairment

    E-Print Network [OSTI]

    LaSarge, Candi Lynn

    2012-07-16T23:59:59.000Z

    cohort of young and aged rats was characterized in an odor discrimination task. Similar to aged rat water maze performance, some aged rats performed odor learning discrimination problems on par with the young cohort (i.e. aged-unimpaired) and some aged...

  12. Fracture toughness test results of thermal aged reactor vessel materials

    SciTech Connect (OSTI)

    DeVan, M.J.; Lowe, A.L. Jr. [B and W Nuclear Technologies Inc., Lynchburg, VA (United States). Nuclear Engineering Dept.; Hall, J.B. [Babcock and Wilcox Co., Alliance, OH (United States)

    1996-12-31T23:59:59.000Z

    Thermal-aged surveillance materials consisting of Sa-533, Grade B, Class 1 plate material; SA-508, Class 2 forging material; and 2 Mn-Mo-Ni/Linde 80 weld metals were removed from two commercial reactor pressure vessels. The material from the first reactor vessel received a thermal exposure of approximately 103,000 hours at 282 C, while the material from the second reactor vessel received a thermal exposure of approximately 93,000 hours at 282 C. Tensile and 1/2 T compact fracture toughness specimens were fabricated from these materials and tested. In addition, to examine the effects of annealing, selected thermal-aged and unaged specimens were annealed at 454 C (850 F) and tested. Varying responses in the fracture toughness properties were observed for all materials after exposure to the thermal-aging temperature. The base metal plate had an observed decrease in J-values after its respective aging exposure, while no significant difference in the J-values were observed for the Linde 80 weld metals. No significant difference was seen in the J-data for the aged/annealed materials, but because of the small number of test specimens available, no conclusion could be determined for the response to annealing.

  13. The impact of minimum age of employment regulation on child labor and schooling

    E-Print Network [OSTI]

    Edmonds, Eric V

    Promoting minimum age of employment regulation has been a centerpiece in child labor policy for the last 15 years. If enforced, minimum age regulation would change the age profile of paid child employment. Using micro-data ...

  14. Hydraulic limitation not declining nitrogen availability causes the age-related photosynthetic decline in loblolly

    E-Print Network [OSTI]

    DeLucia, Evan H.

    Hydraulic limitation not declining nitrogen availability causes the age-related photosynthetic capacity and thus decreases GPP with increasing age; and (2) hydraulic limitations increasingly induce conservative with age. We conclude that hydraulic limitation increasingly limits the photosyn- thetic rates

  15. Environmental and age effects on methylation changes in human brain and blood cells

    E-Print Network [OSTI]

    Giguzinsky, Orit

    2014-01-01T23:59:59.000Z

    Previous studies have shown that DNA methylation may 1 e associated with disease, aging, the rate of aging and genetics. In this thesis, age is accurately predicted from DNA methylation in brain and blood tissues using two ...

  16. Generalized Einstein Relation in an aging colloidal glass

    E-Print Network [OSTI]

    Brengre Abou; Franois Gallet; Pascal Monceau; Nolle Pottier

    2007-05-29T23:59:59.000Z

    We present an experimental and theoretical investigation of the Generalized Einstein Relation (GER), a particular form of a fluctuation-dissipation relation, in an out-of-equilibrium visco-elastic fluid. Micrometer beads, used as thermometers, are immersed in an aging colloidal glass to provide both fluctuation and dissipation measurements. The deviations from the Generalized Einstein Relation are derived as a function of frequency and aging time. The observed deviations from GER are interpreted as directly related to the change in the glass relaxation times with aging time. In our scenario, deviations are observed in the regime where the observation time scale is of the order of a characteristic relaxation time of the glass.

  17. Organic tanks safety program FY96 waste aging studies

    SciTech Connect (OSTI)

    Camaioni, D.M.; Samuels, W.D.; Linehan, J.C.; Clauss, S.A.; Sharma, A.K.; Wahl, K.L.; Campbell, J.A.

    1996-10-01T23:59:59.000Z

    Uranium and plutonium production at the Hanford Site produced large quantities of radioactive by-products and contaminated process chemicals, which are stored in underground tanks awaiting treatment and disposal. Having been made strongly alkaline and then subjected to successive water evaporation campaigns to increase storage capacity, the wastes now exist in the physical forms of salt cakes, metal oxide sludges, and partially saturated aqueous brine solutions. The tanks that contain organic process chemicals mixed with nitrate/nitrite salt wastes may be at risk for fuel- nitrate combustion accidents. The purpose of the Waste Aging Task is to elucidate how chemical and radiological processes will have aged or degraded the organic compounds stored in the tanks. Ultimately, the task seeks to develop quantitative measures of how aging changes the energetic properties of the wastes. This information will directly support efforts to evaluate the hazard as well as to develop potential control and mitigation strategies.

  18. Aging management of containment structures in nuclear power plants

    SciTech Connect (OSTI)

    Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States); Ellingwood, B.R. [The Johns Hopkins Univ., Baltimore, MD (United States); Graves, H.L. III; Norris, W.E. [US Nuclear Regulatory Commission, Washington, DC (United States)

    1994-12-31T23:59:59.000Z

    Research is being conducted by ORNL under US Nuclear Regulatory Commission (USNRC) sponsorship to address aging management of nuclear power plant containment and other safety-related structures. Documentation is being prepared to provide the USNRC with potential structural safety issues and acceptance criteria for use in continued service evaluations of nuclear power plants. Accomplishments include development of a Structural Materials Information Center containing data and information on the time variation of 144 material properties under the influence of pertinent environmental stressors or aging factors, evaluation of models for potential concrete containment degradation factors, development of a procedure to identify critical structures and degradation factors important to aging management, evaluations of nondestructive evaluation techniques. assessments of European and North American repair practices for concrete, review of parameters affecting corrosion of metals embedded in concrete, and development of methodologies for making current condition assessments and service life predictions of new or existing reinforced concrete structures in nuclear power plants.

  19. Aging of steel containments and liners in nuclear power plants

    SciTech Connect (OSTI)

    Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States). Engineering Technology Div.; Ellingwood, B. [Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Civil Engineering; Norris, W.E. [Nuclear Regulatory Commission, Washington, DC (United States). Office of Nuclear Regulatory Research

    1998-01-01T23:59:59.000Z

    Aging of the containment pressure boundary in light water reactor plants is being addressed to understand the significant factors relating occurrence of corrosion efficacy of inspection and structural capacity reduction of steel containments and liners of concrete containments. and to make recommendations on use of risk models in regulatory decisions. Current regulatory in-service inspection requirements are reviewed and a summary of containment related degradation experience is presented. Current and emerging nondestructive examination techniques and a degradation assessment methodology for characterizing and quantifying the amount of damage present are described. Quantitative tools for condition assessment of aging structures using time dependent structural reliability analysis methods are summarized. Such methods provide a framework for addressing the uncertainties attendant to aging in the decision process. Results of this research provide a means for establishing current and estimating future structural capacity margins of containments, and to address the significance of incidences of reported containment degradation.

  20. Age correlation of petroleum of unknown source using biological markers

    SciTech Connect (OSTI)

    Moldowan, J.M.; Jacobson, S.R.; Lee, C.Y. (Chevron Oil Field Research Co., Richmond, CA (USA)); Huizinga, B.J. (Chevron Overseas Petroleum, Inc., San Ramon, CA (USA))

    1990-05-01T23:59:59.000Z

    Determination of age constraints on petroleums from unknown sources provides a means of choosing among possible source rock candidates, predicting migration scenarios for oil, and determining the timing of its emplacement in the reservoir. A number of parameters used to assign such age constraints to petroleum have been suggested by geochemists. However, any constraining marker, regardless of age, may not be found in a particular facies because the parent organisms are absent in those sediments. Thus, the presence of a specific age correlation marker may be significant whereas its absence may not. The authors have investigated two markers for their age-correlation significance. Oleanane, a marker related to pentacyclic triterpanes in flowering plants (angiosperms) occurs in many Late Cretaceous or younger rocks and oils, even though angiosperm fossils are known in older rocks. A survey of a sequence of middle to upper Cretaceous rocks from Wyoming provides an example of a Late Cretaceous age for the onset of oleanane. However, a level of uncertainty exists for older Cretaceous rocks where a trace component with many similarities to oleanane (which could in fact be oleanane) can occur. C{sub 30}-steranes (24-n-propylcholestanes) have been used as a widely occurring marker for marine organic input to petroleum. A recent report postulates the origin of C{sub 30}-steranes from marine Sarcinochrysidales order of Chrysophycase (golden brown algae). Although the fossil record of these algae has not been recorded, their sample base indicates that C{sub 30} steranes, and therefore their parent organisms, originate in the Middle Ordovician.

  1. Research is needed to assess the unique nutrition and wellness needs of aging Californians

    E-Print Network [OSTI]

    Blackburn, Mary L.; Gillogly, Barbara; Hauselt, Peggy

    2010-01-01T23:59:59.000Z

    the development of osteoporosis. Aging and nutrient intakeschronic diseases such as osteoporosis (Wallace 2005). Ma rinanemia, and calcium and osteoporosis; but the role of aging

  2. Aging Aircraft NDI Development and Demonstration Center (AANC): An overview

    SciTech Connect (OSTI)

    Walter, P.L.

    1991-01-01T23:59:59.000Z

    A major center with emphasis on validation of nondestructive inspection techniques for aging aircraft, the Aging Aircraft NDI Development and Demonstration Center (AANC), has been funded by the FAA at Sandia National Laboratories. The Center has been assigned specific tasks in developing techniques for the nondestructive inspection of static engine parts, assessing inspection reliability (POD experiments), developing test beds for nondestructive inspection validation, maintaining a FAA library of characterized aircraft structural test specimens, and leasing a hangar to house a high flight cycle transport aircraft for use as a full scale test bed. 3 refs.

  3. Aging of concrete structures in nuclear power plants

    SciTech Connect (OSTI)

    Naus, D.J.; Pland, C.B. (Oak Ridge National Lab., TN (USA)); Arndt, E.G. (Nuclear Regulatory Commission, Washington, DC (USA))

    1991-01-01T23:59:59.000Z

    The Structural Aging (SAG) Program, sponsored by the US Nuclear Regulatory Commission (USNRC) and conducted by the Oak Ridge National Laboratory (ORNL), had the overall objective of providing the USNRC with an improved basis for evaluating nuclear power plant structures for continued service. The program consists of three technical tasks: materials property data base, structural component assessment/repair technology, and quantitative methodology for continued service determinations. Major accomplishments under the SAG Program during the first two years of its planned five-year duration have included: development of a Structural Materials Information Center and formulation of a Structural Aging Assessment Methodology for Concrete Structures in Nuclear Power Plants. 9 refs.

  4. Determination of age in forensic dentistry from cemental incremental lines

    E-Print Network [OSTI]

    Sousa, Eliane Marques Duarte de

    1987-01-01T23:59:59.000Z

    DETERMINATION OF AGE IN FORENSIC DENTISTRY FROM CEMENTAL INCREMENTAL LINES Thes' s by ELIANE MARJUES DLARTE DF SOUSA Submitted to the Graduate College of Texas A?M Univer ity ' n r. srt' al f"lf' llment of the requirements for the degree... of MASTEP OF S IENCE December 1987 Major Subject: Veterinary Anatomy DETERMINATION OF AGE IN FORENSIC DENTISTRy FROM CEMENTAL INCREMENTAL LINES A Thesis by ELIANE MARQUES DUARTE DE SOUSA Approved as to style and content by: eorge G. Stott (Chairman...

  5. Tenderness, flavor, and yield assessments of dry-aged beef

    E-Print Network [OSTI]

    Laster, Megan Ann

    2009-05-15T23:59:59.000Z

    , vacuum packaged, and imediately frozen. These steaks served as the baseline for tendernes and flavor asesments. The remaining subprimals (n=288) (6 replications x 2 grade groups x 3 subprimals x 4 aging periods x 2 aging treatments) were randomly 7... and reweighed (out of bag weight). In order for a purge loss value to be calculated, vacuum package bags then were washed, dried, and weighed. Using the band saw, ribeye rolls were cut into 2.54 cm-thick Bef Ribeye Steaks Lip-On BI (U.P.C. #1197) (refered...

  6. Space-Age Ceramics Get Their Toughest Test

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9MorganYouofSolvingexplore2 Space andSpace-AgeSpace-Age

  7. Space-Age Ceramics Get Their Toughest Test

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3Biology|Solar windMarchSpace-Age CeramicsSpace-Age

  8. Stability of critical bubble in stretched fluid of square-gradient density-functional model with triple-parabolic free energy

    E-Print Network [OSTI]

    Masao Iwamatsu; Yutaka Okabe

    2010-06-11T23:59:59.000Z

    The square-gradient density-functional model with triple-parabolic free energy, that was used previously to study the homogeneous bubble nucleation [J. Chem. Phys. 129, 104508 (2008)], is used to study the stability of the critical bubble nucleated within the bulk under-saturated stretched fluid. The stability of the bubble is studied by solving the Schr\\"odinger equation for the fluctuation. The negative eigenvalue corresponds to the unstable growing mode of the fluctuation. Our results show that there is only one negative eigenvalue whose eigenfunction represents the fluctuation that corresponds to the isotropically growing or shrinking nucleus. In particular, this negative eigenvalue survives up to the spinodal point. Therefore the critical bubble is not fractal or ramified near the spinodal.

  9. The influence of bond-rigidity and cluster diffusion on the self-diffusion of hard spheres with square-well interaction

    E-Print Network [OSTI]

    Sujin Babu; Jean Christophe Gimel; Taco Nicolai; C. De Michele

    2007-11-02T23:59:59.000Z

    Hard spheres interacting through a square-well potential were simulated using two different methods: Brownian Cluster Dynamics (BCD) and Event Driven Brownian Dynamics (EDBD). The structure of the equilibrium states obtained by both methods were compared and found to be almost the identical. Self diffusion coefficients ($D$) were determined as a function of the interaction strength. The same values were found using BCD or EDBD. Contrary the EDBD, BCD allows one to study the effect of bond rigidity and hydrodynamic interaction within the clusters. When the bonds are flexible the effect of attraction on $D$ is relatively weak compared to systems with rigid bonds. $D$ increases first with increasing attraction strength, and then decreases for stronger interaction. Introducing intra-cluster hydrodynamic interaction weakly increases $D$ for a given interaction strength. Introducing bond rigidity causes a strong decrease of $D$ which no longer shows a maximum as function of the attraction strength.

  10. Constraints on the range lambda of Yukawa-like modifications to the Newtonian inverse-square law of gravitation from Solar System planetary motions

    E-Print Network [OSTI]

    Lorenzo Iorio

    2007-09-25T23:59:59.000Z

    In this paper we use the latest corrections to the Newton-Einstein secular perihelion rates of some planets of the Solar System, phenomenologically estimated with the EPM2004 ephemerides by the Russian astronomer E.V. Pitjeva, to put severe constraints on the range parameter lambda characterizing the Yukawa-like modifications of the Newtonian inverse-square law of gravitation. It turns out that the range cannot exceed about one tenth of an Astronomical Unit. We assumed neither equivalence principle violating effects nor spatial variations of $\\alpha$ and $\\lambda$. This finding may have important consequences on all the modified theories of gravity involving Yukawa-type terms with range parameters much larger than the Solar System size. However, caution is advised since we, currently have at our disposal only the periehlion extra-rates estimated by Pitjeva: if and when other groups will estimate their own corrections to the secular motion of perihelia, more robust and firm tests may be conducted.

  11. Benchmarking and Data Analysis

    E-Print Network [OSTI]

    Williams, K.

    2014-01-01T23:59:59.000Z

    Portfolio Manager ESL-KT-14-11-14 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Data Collection Captured ? Utility usage and cost ? Building square footage ? Work orders Uncaptured ? Undocumented work ? Mechanical failures... 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Great data leads to great decisions ESL-KT-14-11-14 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Resources Energy Star Portfolio Manager http...

  12. T u f t s U n i v e r s i t y F a c t B o o k 2 0 1 0 2 0 1 1 FACT BOOK 2010-2011

    E-Print Network [OSTI]

    Dennett, Daniel

    Total Areas by Room Type 151 Energy Emissions 152 Solid Waste Data 152 Buildings and Square FootageT u f t s U n i v e r s i t y F a c t B o o k 2 0 1 0 2 0 1 1 FACT BOOK 2010-2011 #12;T u f t s U n Update 145 Residential Housing 146 Special Programs in Residence 147 Classrooms by Building & Usage 149

  13. Women in management: gender, age and working lives

    E-Print Network [OSTI]

    Jyrkinen, Marjut; McKie, Linda

    The project reported in this briefing paper explored how age and gender inter-weave and impact on the working and home lives of women managers working in two EU member states, namely Finland and Scotland. The proportion of women in middle...

  14. Aging of Alloy 617 at 650 and 750 Degrees C

    SciTech Connect (OSTI)

    Julian Benz; Thomas Lillo; Richard Wright

    2013-01-01T23:59:59.000Z

    Alloy 617 has been selected as the primary candidate for heat exchanger applications in advanced reactors. For the VHTR this application could require extended service up to a reactor outlet temperature of 950C. A key hurdle to using this alloy in the VHTR heat exchanger application is qualifying the alloy for Section III of the ASME Boiler and Pressure Vessel Code. In order to Code qualify the material it is necessary to characterize the influence of long term aging on the mechanical behavior. Alloy 617 has been aged at 650 and 750C for times up to 5300 hours. The microstructure after aging has been characterized using optical and transmission electron microscopies. It has been determined that in addition to carbides, a significant volume fraction of ? phase (Ni3Al) is formed at these temperatures. The ? does not contribute significantly to changing the tensile or impact properties of the aged material. It does, however, appear to increase creep resistance and impede creep crack growth.

  15. age toolmaking technology: Topics by E-print Network

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

    age toolmaking technology 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 Privacy, Technology, and...

  16. Brain surgery breathes new life into aging plants

    SciTech Connect (OSTI)

    Makansi, J. [Pearl Street Inc. (United States)

    2006-04-15T23:59:59.000Z

    Unlike managing the human aging process, extending the life of a power plant often includes brain surgery, modernizing its control and automation system. Lately, such retrofits range from wholesale replacing of existing controls to the addition of specific control elements that help optimize performance. Pending revisions to safety codes and cybersecurity issues also need to be considered. 4 figs.

  17. Bitcoin and The Age of Bespoke Silicon Michael Bedford Taylor

    E-Print Network [OSTI]

    Wang, Deli

    Bitcoin and The Age of Bespoke Silicon Michael Bedford Taylor University of California, San Diego ABSTRACT Recently, the Bitcoin cryptocurrency has been an interna- tional sensation. This paper tells the story of Bitcoin hard- ware: how a group of early-adopters self-organized and fi- nanced the creation

  18. Social relationships, sleep quality, and interleukin-6 in aging women

    E-Print Network [OSTI]

    Patel, Aniruddh D.

    focus on sleep quality and its interactions with social engagement in predicting reduced plasma IL-6 of social engagement, sleep quality, and plasma levels of interleukin-6 (IL-6) in a sample of aging women (n samples were obtained for analysis of plasma levels of IL-6. Regarding subjective assessment, poorer sleep

  19. Original article Age-related changes in apparent digestibility

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Original article Age-related changes in apparent digestibility in growing kittens E. Jean HARPER kitten to digest protein, fat, carbohydrate, dry-matter and energy were assessed. Kittens were divided access to food. Apparent digestibility of the two diets, and kitten bodyweights were measured over a 24

  20. aging test results: Topics by E-print Network

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

    test results 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 Testing intermediate-age stellar evolution...

  1. accelerated aging test: Topics by E-print Network

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

    accelerated aging test 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 Powerline Conductor Accelerated...

  2. accelerated ageing test: Topics by E-print Network

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

    ageing test 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 Powerline Conductor Accelerated Testing...

  3. Aging and Top-Down Attentional Control in Visual Search

    E-Print Network [OSTI]

    McShea, Daniel W.

    systems that bias the gating of this featural information to later processing stages such as objectApril 2010 Aging and Top-Down Attentional Control in Visual Search Project Leads David J. Madden Security (DHS) to be able to assess and maintain this skill set in those employed as baggage screeners

  4. Age of Neoproterozoic Bilatarian Body and Trace Fossils, White

    E-Print Network [OSTI]

    J. L. Kirschvink3 A uranium-lead zircon age for a volcanic ash interstratified with fossil seawater. The terminal Neoproterozoic interval is char- acterized by a period of supercontinent amal- gamation and dispersal (1, 2), low-latitude glaciations (3, 4), chemical perturbations of seawater (5

  5. Age-validation of a leopard shark (Triakis semifasciata)

    E-Print Network [OSTI]

    with oxytetracycline hydrochloride (OTC), tagged on the dorsal fin with yellow plastic livestock rototags, and released194 Age-validation of a leopard shark (Triakis semifasciata) recaptured after 20 years Susan E sharks were from a group of 948 leopard sharks tagged and released off Hunters Point (3744N lat., 122

  6. absorber materials aging: Topics by E-print Network

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

    absorber materials aging 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 Characterization of porous...

  7. Age-Related Changes in Task Related Functional Network Connectivity

    E-Print Network [OSTI]

    the information load [2,3,4], retention interval [5,6] and response time duration [7,8]. Results from fMRI studies-serving these processes have been elucidated with experimental manipulations that vary task demands by altering with these alterations in task demands [9]. Advancing age is associated with decreased performance on verbal working

  8. argentina age stratigraphic: Topics by E-print Network

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

    argentina age stratigraphic 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 Contribution of GIS and...

  9. EARLY-AGE CRACKING REVIEW: MECHANISMS, MATERIAL PROPERTIES,

    E-Print Network [OSTI]

    Bentz, Dale P.

    ://cementbarriers.org/ and Savannah River National Laboratory website: http://srnl.doe.gov #12;Early-Age Cracking Review: Mechanisms Commission (NRC), the National Institute of Standards and Technology (NIST), the Savannah River National of work performed in part under that contract. This report was prepared in support of the Savannah River

  10. Anoxygenic photosynthesis modulated Proterozoic oxygen and sustained Earth's middle age

    E-Print Network [OSTI]

    Macalady, Jenn

    Anoxygenic photosynthesis modulated Proterozoic oxygen and sustained Earth's middle age D. T photosynthesis to overall primary production would have influ- enced oceanic redox and the Proterozoic O2 budget time in Earth's history, complete dominance of oxygenic photosynthesis in the oceans. This paved

  11. Desorption Kinetics for Field-Aged Polycyclic Aromatic Hydrocarbons

    E-Print Network [OSTI]

    Rockne, Karl J.

    Harbor Estuary. Desorption kinetics for PAHs with a log octanol- water partition coefficient greater than This study considers desorption kinetics for 12 field-aged polycyclic aromatic hydrocarbons (PAHs) desorbing 6 were well- described by a one-domain diffusion model that assumes that PAHs are initially

  12. Reviving the Free Public Scientific Library in the Digital Age?

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Reviving the Free Public Scientific Library in the Digital Age? The EuDML project Thierry Bouche for- ward has been achieved during the course of the European Digital Math- ematics Library (Eu during the course of the European Digital Mathematics Library (EuDML) project which got initial funding

  13. Reviving the Free Public Scientific Library in the Digital Age?

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Reviving the Free Public Scientific Library in the Digital Age? The EuDML project Thierry Bouche- ward has been achieved during the course of the European Digital Math- ematics Library (EuDML) project during the course of the European Digital Mathematics Library (EuDML) project which got initial funding

  14. Retail Shelf-life Characteristics of Dry-aged Beef

    E-Print Network [OSTI]

    Ulbrich, Carson

    2010-07-14T23:59:59.000Z

    counts, lactic acid bacteria, and yeast and mold counts. Surface discoloration (P = 0.007) and fat discoloration (P < 0.0001) of steaks increased as aging period and retail steak shelf-life day increased. Also, off-odor development increased (P < 0...

  15. The Age-Redshift Relation for Standard Cosmology

    E-Print Network [OSTI]

    R. C. Thomas; R. Kantowski

    2000-08-10T23:59:59.000Z

    We present compact, analytic expressions for the age-redshift relation $\\tau(z)$ for standard Friedmann-Lema\\^ \\itre-Robertson-Walker (FLRW) cosmology. The new expressions are given in terms of incomplete Legendre elliptic integrals and evaluate much faster than by direct numerical integration.

  16. A 4D geometrical modeling of a material aging

    E-Print Network [OSTI]

    A. Chudnovsky; S. Preston

    2006-04-16T23:59:59.000Z

    4-dim intrinsic (material) Riemannian metric $G$ of the material 4-D space-time continuum $P$ is utilized as the characteristic of the aging processes developing in the material. Manifested through variation of basic material characteristics such as density, moduli of elasticity, yield stress, strength, and toughness., the aging process is modeled as the evolution of the metric $G$ (most importantly of its time component $G_{00}$) of the material space-time $P$ embedded into 4-D Newtonian space-time with Euclidean metric.\\par The evolutional equation for metric $G$ is derived by the classical variational approach. Construction of a Lagrangian for an aging elastic media and the derivation of a system of coupled elastostatic and aging equations constitute the central part of the work. The external and internal balance laws associated with symmetries of material and physical space-time geometries are briefly reviewed from a new viewpoint presented in the paper. Examples of the stress relaxation and creep of a homogeneous rod, cold drawing, and chemical degradation in a tubing are discussed.

  17. aging mouse brain: Topics by E-print Network

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

    aging mouse brain 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 Construction of Anatomically Correct...

  18. aging brain relevance: Topics by E-print Network

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

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

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  20. ageing human brain: Topics by E-print Network

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

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