Sample records for inforum lift model

  1. The Inforum LIFT Model

    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,1Stocks Nov-14Total DeliveredPrincipalNumberAugust7,Biofuels:Inforum

  2. Semantic Lifting of Business Process models Mario Lezoche1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Semantic Lifting of Business Process models Mario Lezoche1 , Antonio De Nicola1 , Tania Di Mascio1, Italy tania@ing.univaq.it Abstract. Business Process modeling is constantly acquiring attention in modern enterprises. Today, BP editor tools support modelers in building correct diagrams only from

  3. Virtual Electrodes Mechanisms Predictions with a Current-Lifted Monodomain Model

    E-Print Network [OSTI]

    Boyer, Edmond

    Virtual Electrodes Mechanisms Predictions with a Current-Lifted Monodomain Model Yves Coudi`ere1 cost. The source term is derived from a lifting principle ap- plied to the resolution, and an excitation part, that remains unchanged. Equivalently, we make a lifting of the stimula- tion functions

  4. Stochastic modeling of lift and drag dynamics under turbulent conditions

    E-Print Network [OSTI]

    Peinke, Joachim

    measurement. The model is being developed with the aim to integrate it into a general wind energy converter dynamics, drag dynamics. 1 Introduction Wind energy converters (WECs) are permanently exposed to turbulent.peinke@forwind.de in every second, which imposes different risks. The dynamical nature of the wind has a significant impact

  5. Handicapped car lifting seat

    E-Print Network [OSTI]

    Schoenmakers, Sean A

    2005-01-01T23:59:59.000Z

    Currently there is a lack of assistance in automobile usage for the older people of our society. In an attempt to combat this problem, this thesis designs and builds a working conceptual model of a handicapped car lifting ...

  6. Distributed delay model for density wave dynamics in gas lifted wells Laure Sin`egre, Nicolas Petit

    E-Print Network [OSTI]

    Distributed delay model for density wave dynamics in gas lifted wells Laure Sin`egre, Nicolas Petit in the tubing D. dynamical choking is used to stabilise the density wave instability. In this paper, we propose instabilities cause production losses. One of these instabilities, referred to as the "density-wave

  7. aircraft lift estonia: Topics by E-print Network

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

    we describe lifted inference algorithms that determine symmetries and automatically lift the probabilistic model to speedup inference. In particular, we describe approximate...

  8. Testing and modeling of compressors for low-lift cooling applications

    E-Print Network [OSTI]

    Willingham, Ryan Alexander

    2009-01-01T23:59:59.000Z

    In this thesis, an inverter-driven variable speed scroll compressor is tested on a de-superheater test stand to determine its performance in areas of low-lift and low compressor speed. The goal is to adapt this test stand ...

  9. Lift Forces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9 5Let us count theLienertLift Forces in Bubbly

  10. An artificial intelligence approach to model-based gas lift troubleshooting

    E-Print Network [OSTI]

    Ortiz-Volcan, Jose Luis

    1990-01-01T23:59:59.000Z

    to Dr. A. Khachatryan who spent a great deal of time discussing with me important issues about AI. I also wish to thank to Dr. S. Wong from ARCO Oil and Gas Company, part of the field data as well as multiphase flow calculations from the Prudhoe Bay... Oriente (Venezuela) Chair of Advisory Committee: Dr. R. A. Startzman The ability to identify gas lift equipment problems in a well is particularly important when determining the performance of the well. One of the most common type of malfunctions...

  11. Simulating flame lift-off characteristics of diesel and biodiesel fuels using detailed chemical-kinetic mechanisms and LES turbulence model.

    SciTech Connect (OSTI)

    Som, S; Longman, D. E.; Luo, Z; Plomer, M; Lu, T; Senecal, P.K.; Pomraning, E (Energy Systems); (Univ. of Connecticut); (CONVERGENT Science)

    2012-01-01T23:59:59.000Z

    Combustion in direct-injection diesel engines occurs in a lifted, turbulent diffusion flame mode. Numerous studies indicate that the combustion and emissions in such engines are strongly influenced by the lifted flame characteristics, which are in turn determined by fuel and air mixing in the upstream region of the lifted flame, and consequently by the liquid breakup and spray development processes. From a numerical standpoint, these spray combustion processes depend heavily on the choice of underlying spray, combustion, and turbulence models. The present numerical study investigates the influence of different chemical kinetic mechanisms for diesel and biodiesel fuels, as well as Reynolds-averaged Navier-Stokes (RANS) and large eddy simulation (LES) turbulence models on predicting flame lift-off lengths (LOLs) and ignition delays. Specifically, two chemical kinetic mechanisms for n-heptane (NHPT) and three for biodiesel surrogates are investigated. In addition, the RNG k-{epsilon} (RANS) model is compared to the Smagorinsky based LES turbulence model. Using adaptive grid resolution, minimum grid sizes of 250 {micro}m and 125 {micro}m were obtained for the RANS and LES cases respectively. Validations of these models were performed against experimental data from Sandia National Laboratories in a constant volume combustion chamber. Ignition delay and flame lift-off validations were performed at different ambient temperature conditions. The LES model predicts lower ignition delays and qualitatively better flame structures compared to the RNG k-{epsilon} model. The use of realistic chemistry and a ternary surrogate mixture, which consists of methyl decanoate, methyl 9-decenoate, and NHPT, results in better predicted LOLs and ignition delays. For diesel fuel though, only marginal improvements are observed by using larger size mechanisms. However, these improved predictions come at a significant increase in computational cost.

  12. SWPF Crane Lift Operation

    SciTech Connect (OSTI)

    None

    2010-01-01T23:59:59.000Z

    A multiple vview shot of the SWPF crane lift operation at the Savannah River Site. Funded by the Recovery Act.

  13. Hoisting and Rigging: Lift Planning and Control for Ordinary Lifts

    E-Print Network [OSTI]

    Wechsler, Risa H.

    Plan # Hoisting and Rigging: Lift Planning and Control for Ordinary Lifts Department or Group Plan planning and control elements for ordinary lifts. For additional lift plan examples, or to compare an ordinary lift planning to planning considerations for critical or production lifts see DOE-STD-1090

  14. CASING-HEADING PHENOMENON IN GAS-LIFTED WELL AS A LIMIT CYCLE OF A

    E-Print Network [OSTI]

    phenomenon occurring on gas- lift artificially lifted well. This behavior is well represented by a 2D model: Process Control, Dynamic Systems, Limit Cycles, Switching System, Gas-Lifted Well. 1. INTRODUCTIONCASING-HEADING PHENOMENON IN GAS-LIFTED WELL AS A LIMIT CYCLE OF A 2D MODEL WITH SWITCHES Laure Sin

  15. Wind tower service lift

    DOE Patents [OSTI]

    Oliphant, David; Quilter, Jared; Andersen, Todd; Conroy, Thomas

    2011-09-13T23:59:59.000Z

    An apparatus used for maintaining a wind tower structure wherein the wind tower structure may have a plurality of legs and may be configured to support a wind turbine above the ground in a better position to interface with winds. The lift structure may be configured for carrying objects and have a guide system and drive system for mechanically communicating with a primary cable, rail or other first elongate member attached to the wind tower structure. The drive system and guide system may transmit forces that move the lift relative to the cable and thereby relative to the wind tower structure. A control interface may be included for controlling the amount and direction of the power into the guide system and drive system thereby causing the guide system and drive system to move the lift relative to said first elongate member such that said lift moves relative to said wind tower structure.

  16. Hoisting & Rigging Lift Plan

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

    Plan Stanford Synchrotron Radiation Laboratory May 16, 2005 SSRL-HRLP-000-R0 Page 3 of 3 Guidelines for Generating a Rigging Sketch The lift plan required a rigging sketch or...

  17. FREIGHT CONTAINER LIFTING STANDARD

    SciTech Connect (OSTI)

    POWERS DJ; SCOTT MA; MACKEY TC

    2010-01-13T23:59:59.000Z

    This standard details the correct methods of lifting and handling Series 1 freight containers following ISO-3874 and ISO-1496. The changes within RPP-40736 will allow better reading comprehension, as well as correcting editorial errors.

  18. Product Sheet Wall Mount Lift

    E-Print Network [OSTI]

    Saskatchewan, University of

    Product Sheet Wall Mount Lift Ergotron® Neo-FlexTM 870-05-061, rev. 12/11/07 www. Less effort. Feel the difference. Add greater range of movement to your LCD display or TV with the Neo-Flex Wall Mount Lift! CF patented lift-and-pivot motion technology adjusts with a light touch. Raise

  19. Lifting WALKSAT-based Local Search Algorithms for MAP Inference Somdeb Sarkhel

    E-Print Network [OSTI]

    Gogate, Vibhav

    Lifting WALKSAT-based Local Search Algorithms for MAP Inference Somdeb Sarkhel Computer Science in probabilistic graphical models, and lift it to the first-order level, yielding a powerful algorithm for MAP inference in Markov logic net- works (MLNs). Lifted MaxWalkSAT is based on the obser- vation that if the MLN

  20. artificial lifts: Topics by E-print Network

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

    Page Last Page Topic Index 1 An artificial intelligence approach to model-based gas lift troubleshooting Texas A&M University - TxSpace Summary: AN ARTIFICIAL INTELLIGENCE...

  1. A new finite element lifting surface technique

    E-Print Network [OSTI]

    Kocurek, James David

    1973-01-01T23:59:59.000Z

    ~ ~ ~ ~ ~ ~ ~ ~ ~ 34 VITA 39 vi LIST OF FIGURES Figure Page 1. Planar Panel Idealization 13 2. Vortex-Box Lifting Surface Model 14 3. Vortex-Box Trailing Wake Model 4. Spanwise Distribution Of Circulation, Planar Wing 5. Chordwise Distribution Of Circulation... coordinate ? ~ circulation strength, ft /sec 2 p ~ freestream density, slugs/ft 3 o a portion of S and W velocity potential, ft /sec 2 Subscripts a, b, c points in Cartesian space i, g indicies n ~ direction normal to a surface x, y, z with respect...

  2. High-Temperature-High-Volume Lifting for Enhanced Geothermal...

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

    High-Temperature-High-Volume Lifting for Enhanced Geothermal Systems High-Temperature-High-Volume Lifting for Enhanced Geothermal Systems High-Temperature-High-Volume Lifting for...

  3. Development of a Low-Lift Chiller Controller and Simplified Precooling Control Algorithm - Final Report

    SciTech Connect (OSTI)

    Gayeski, N.; Armstrong, Peter; Alvira, M.; Gagne, J.; Katipamula, Srinivas

    2011-11-30T23:59:59.000Z

    KGS Buildings LLC (KGS) and Pacific Northwest National Laboratory (PNNL) have developed a simplified control algorithm and prototype low-lift chiller controller suitable for model-predictive control in a demonstration project of low-lift cooling. Low-lift cooling is a highly efficient cooling strategy conceived to enable low or net-zero energy buildings. A low-lift cooling system consists of a high efficiency low-lift chiller, radiant cooling, thermal storage, and model-predictive control to pre-cool thermal storage overnight on an optimal cooling rate trajectory. We call the properly integrated and controlled combination of these elements a low-lift cooling system (LLCS). This document is the final report for that project.

  4. Analyzing the Redesign of a Distributed Lift System in UPPAAL

    E-Print Network [OSTI]

    Fokkink, Wan

    each lift has its own micro controller. This system has been designed and implemented by a small Dutch a system meets its requirements. In a formal model of a real-life system, details irrelevant to the requirements under scrutiny can be abstracted away. With the formal model at hand, one is able to reason about

  5. Generalised Eisenhart lift of the Toda chain

    SciTech Connect (OSTI)

    Cariglia, Marco, E-mail: marco@iceb.ufop.br [DEFIS, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, 35400-000 Ouro Preto, MG (Brazil)] [DEFIS, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, 35400-000 Ouro Preto, MG (Brazil); Gibbons, Gary, E-mail: g.w.gibbons@damtp.cam.ac.uk [DAMTP, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)] [DAMTP, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)

    2014-02-15T23:59:59.000Z

    The Toda chain of nearest neighbour interacting particles on a line can be described both in terms of geodesic motion on a manifold with one extra dimension, the Eisenhart lift, or in terms of geodesic motion in a symmetric space with several extra dimensions. We examine the relationship between these two realisations and discover that the symmetric space is a generalised, multi-particle Eisenhart lift of the original problem that reduces to the standard Eisenhart lift. Such generalised Eisenhart lift acts as an inverse Kaluza-Klein reduction, promoting coupling constants to momenta in higher dimension. In particular, isometries of the generalised lift metric correspond to energy preserving transformations that mix coordinates and coupling constants. A by-product of the analysis is that the lift of the Toda Lax pair can be used to construct higher rank Killing tensors for both the standard and generalised lift metrics.

  6. Normalized Lift: An Energy Interpretation of the Lift Coefficient Simplifies Comparisons of the Lifting Ability of Rotating and Flapping Surfaces

    E-Print Network [OSTI]

    Burgers, Phillip; Alexander, David E.

    2012-05-21T23:59:59.000Z

    coefficient of a fixed wing slightly differently, as the work exerted by the wing on the surrounding flow field (L/?·S), compared against the total kinetic energy required for generating said lift, ½v2. This reinterpreted coefficient, the normalized lift...

  7. Lifted Linear Programming Martin Mladenov Babak Ahmadi Kristian Kersting

    E-Print Network [OSTI]

    Kersting, Kristian

    Lifted Linear Programming Martin Mladenov Babak Ahmadi Kristian Kersting Knowledge Discovery Lifted inference approaches have rendered large, previously intractable probabilistic in- ference- tuitively, given a linear program (LP), we em- ploy a lifted variant of Gaussian belief propa- gation (Ga

  8. Lifting Metamodels to Ontologies: A Step to the Semantic Integration of

    E-Print Network [OSTI]

    Hochreiter, Sepp

    Lifting Metamodels to Ontologies: A Step to the Semantic Integration of Modeling Languages1 Gerti of Technology {gerti|kargl|kramler|wimmer}@big.tuwien.ac.at 2 Information Systems Group, Johannes Kepler

  9. aerodynamic lift: Topics by E-print Network

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

    USING A VISCOUS ADJOINT-BASED METHOD Engineering Websites Summary: of high-lift system configurations. Improve take-off and landing performance of high-lift systems...

  10. Cooling molten salt reactors using “gas-lift

    SciTech Connect (OSTI)

    Zitek, Pavel, E-mail: zitek@kke.zcu.cz, E-mail: klimko@kke.zcu.cz; Valenta, Vaclav, E-mail: zitek@kke.zcu.cz, E-mail: klimko@kke.zcu.cz; Klimko, Marek, E-mail: zitek@kke.zcu.cz, E-mail: klimko@kke.zcu.cz [University of West Bohemia in Pilsen, Univerzitní 8, 306 14 Pilsen (Czech Republic)

    2014-08-06T23:59:59.000Z

    This study briefly describes the selection of a type of two-phase flow, suitable for intensifying the natural flow of nuclear reactors with liquid fuel - cooling mixture molten salts and the description of a “Two-phase flow demonstrator” (TFD) used for experimental study of the “gas-lift” system and its influence on the support of natural convection. The measuring device and the application of the TDF device is described. The work serves as a model system for “gas-lift” (replacing the classic pump in the primary circuit) for high temperature MSR planned for hydrogen production. An experimental facility was proposed on the basis of which is currently being built an experimental loop containing the generator, separator bubbles and necessary accessories. This loop will model the removal of gaseous fission products and tritium. The cleaning of the fuel mixture of fluoride salts eliminates problems from Xenon poisoning in classical reactors.

  11. Evolution of curvature invariants and lifting integrability

    E-Print Network [OSTI]

    Kamp, Peter H. van der

    Evolution of curvature invariants and lifting integrability Elizabeth L. Mansfield and Peter H. van. These define the curvature and evolution invariants that are associated to curves moving in the given geometry. The syzygy between the curvature and evolution invariants is obtained as a zero curvature relation

  12. New Crystal Structures Lift Fog around Protein Folding

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

    New Crystal Structures Lift Fog around Protein Folding New Crystal Structures Lift Fog around Protein Folding Print Wednesday, 25 July 2012 00:00 Nature's proteins set a high bar...

  13. Design of an electronically-actuated gas lift safety valve

    E-Print Network [OSTI]

    Yu, Changkuan, S.M. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    Gas lift valves are widely used in oil production fields to pump recycled gas and nitrogen into the production tubing, to sustain production by aerating the oil and lifting it to the ground or sea surface. Today's industry ...

  14. Failure Mode and Sensitivity Analysis of Gas Lift Valves

    E-Print Network [OSTI]

    Gilbertson, Eric W.

    Gas-lifted oil wells are susceptible to failure through malfunction of gas lift valves. This is a growing concern as offshore wells are drilled thousands of meters below the ocean floor in extreme temperature and pressure ...

  15. Design of a Thermally-Actuated Gas Lift Safety Valve

    E-Print Network [OSTI]

    Gilbertson, Eric W.

    Gas-lifted oil wells are susceptible to failure through malfunction of gas lift valve assemblies (GLV). One failure mode occurs when the GLV check valve fails and product passes into the well annulus, potentially reaching ...

  16. Lift-off dynamics in a simple jumping robot

    E-Print Network [OSTI]

    Jeffrey Aguilar; Alex Lesov; Kurt Wiesenfeld; Daniel I. Goldman

    2012-08-30T23:59:59.000Z

    We study vertical jumping in a simple robot comprising an actuated mass-spring arrangement. The actuator frequency and phase are systematically varied to find optimal performance. Optimal jumps occur above and below (but not at) the robot's resonant frequency $f_0$. Two distinct jumping modes emerge: a simple jump which is optimal above $f_0$ is achievable with a squat maneuver, and a peculiar stutter jump which is optimal below $f_0$ is generated with a counter-movement. A simple dynamical model reveals how optimal lift-off results from non-resonant transient dynamics.

  17. Lifted First-Order Belief Propagation Parag Singla Pedro Domingos

    E-Print Network [OSTI]

    Prasad, Sanjiva

    applied to very small artificial problems. In this paper we propose the first lifted version of a scalable). (Limited lifted aspects are present in some earlier systems, like Pfeffer et al.'s (1999) SPOOK.) PooleLifted First-Order Belief Propagation Parag Singla Pedro Domingos Department of Computer Science

  18. Control of a Hydraulically-Powered, Differential Lift Project Proposal

    E-Print Network [OSTI]

    Control of a Hydraulically-Powered, Differential Lift Project Proposal Written by Thomas Johnson ME6401: Linear Control Submitted to Dr. Wayne Book 9/11/06 #12;A hydraulically-powered, differential lift representation of a differential lift can be viewed in Figure 1. Figure 1. Hydraulically-powered, differential

  19. university-logo Explicit Liftings of Conjugacy Classes in Reductive

    E-Print Network [OSTI]

    Nevins, Monica

    university-logo Explicit Liftings of Conjugacy Classes in Reductive Groups Joshua Lansky Jeffrey December 8, 2013 Lansky (American University) Explicit Liftings CMS Winter Meeting 1 / 18 #12;university-logo (American University) Explicit Liftings CMS Winter Meeting 2 / 18 #12;university-logo Outline 1 Introduction

  20. Predicting instabilities in gas-lifted wells simulation Laure Sin`egre, Nicolas Petit

    E-Print Network [OSTI]

    of instabilities occurring in practical applications of gas-lifted oil wells. The model underlying our analysis the drilling pipe (casing, point B) and the production pipe (tubing, point D) where it enters. Oil produced explained. The best identified instability is the "casing-heading". It consists of a succession of pressure

  1. High-Temperature-High-Volume Lifting for Enhanced Geothermal...

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

    Separate DOE effort on cable technology * Full support and involvement of GE Artificial Lift business * Remainder of 2013 focused on: * Subscale system fabrication completion *...

  2. High-Temperature-High-Volume Lifting for Enhanced Geothermal Systems

    Broader source: Energy.gov [DOE]

    Project objective: Advance the technology for well fluids lifting systems to meet the foreseeable pressure; temperature; and longevity needs of the Enhanced Geothermal Systems (EGS) industry.

  3. High-Temperature-High-Volume Lifting For Enhanced Geothermal...

    Open Energy Info (EERE)

    include high-temperature drive system materials, journal and thrust bearings, and corrosion and erosion-resistant lifting pump components. Finally, in Phase 3, the overall...

  4. New Crystal Structures Lift Fog around Protein Folding

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

    New Crystal Structures Lift Fog around Protein Folding Print Nature's proteins set a high bar for nanotechnology. Macromolecules forged from peptide chains of amino acids, these...

  5. Accident Investigation of the February 7, 2013, Scissor Lift...

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

    caused when a scissor lift tipped over in Brine Tank-14 (WHT-14) at the Strategic Petroleum Reserve, West Hackberry, Louisiana, site on February 7, 2013. The Board's...

  6. The Inhomogeneous Structure of Water at Ambient Conditions

    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 InstagramStructureProposedPAGESafetyTed5,AuditTheImpactInforum LIFT Model

  7. The Initiation of Bacterial DNA Replication

    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 InstagramStructureProposedPAGESafetyTed5,AuditTheImpactInforum LIFT ModelThe

  8. The Initiation of Bacterial DNA Replication

    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 InstagramStructureProposedPAGESafetyTed5,AuditTheImpactInforum LIFT ModelTheThe

  9. LBNL/ Fall Protection Requirements for Boom Lift 2010 Requirements for boom lift operations is to tether an adjustable 6' lanyard to 3ft

    E-Print Network [OSTI]

    Eisen, Michael

    LBNL/ Fall Protection Requirements for Boom Lift 2010 Requirements for boom lift operations. LBNL best practices requirements for boom lift Operations is to tether an adjustable 6' lanyard to 3ft protection system in required when anchor points are present in lift. It is LBNL best practices requirements

  10. Lifting Integrity Constraints in Binary Aggregation Umberto Grandi

    E-Print Network [OSTI]

    Endriss, Ulle

    Lifting Integrity Constraints in Binary Aggregation Umberto Grandi and Ulle Endriss Institute language and we explore the question of whether or not a given aggregation procedure will lift a given, this discipline has received increasing attention in Artificial Intelligence (AI), as testified by a large number

  11. UF{sub 6} cylinder lifting equipment enhancements

    SciTech Connect (OSTI)

    Hortel, J.M. [Martin Marietta Energy Systems, Inc., Piketon, OH (United States)

    1991-12-31T23:59:59.000Z

    This paper presents numerous enhancements that have been made to the Portsmouth lifting equipment to ensure the safe handling of cylinders containing liquid uranium hexafluoride (UF{sub 6}). The basic approach has been to provide redundancy to all components of the lift path so that any one component failure would not cause the load to drop or cause any undesirable movement.

  12. Fuel effects on flame lift-off under diesel conditions

    SciTech Connect (OSTI)

    Persson, Helena; Andersson, Oeivind; Egnell, Rolf [Lund University (Sweden). Dept. of Energy Sciences

    2011-01-15T23:59:59.000Z

    An apparent relation between the lift-off length under diesel conditions and the ignition quality of a fuel has previously been reported. To cast light on the underlying mechanism, the current study aims to separate flame lift-off effects of the chemical ignition delay from those of other fuel properties under diesel conditions. Flame lift-off was measured in an optical diesel engine by high-speed video imaging of OH-chemiluminescence. Fuel and ambient-gas properties were varied during the experiment. Only a weak correlation was found between ignition delay and lift-off length. The data indicate that this correlation is due to a common, stronger correlation with the ambient oxygen concentration. The chemical ignition delay and the fuel type had similar, weak effects on the lift-off length. A recently proposed mechanism for lift-off stabilization was used to interpret the results. It assumes that reactants approaching the lift-off position of the jet are mixed with high-temperature products found along the edges of the flame, which trigger autoignition. In this picture, the fuel effect is most likely due to differences in the amount of mixing with high-temperature products that is required for autoignition. In the current experiment, all lift-off effects seem to arise from variations in the reactant and product temperatures, induced by fuel and ambient properties. (author)

  13. Computing Symmetrized Weight Enumerators for Lifted Quadratic Residue Codes

    E-Print Network [OSTI]

    Duursma, Iwan M.

    Computing Symmetrized Weight Enumerators for Lifted Quadratic Residue Codes I. M. Duursma Dept for the computation of structural parameters for ring-linear codes. This article therefore presents a method to eÃ?ciently compute weight enumerators of linear codes over primary integer residue rings. For the lifted QR-codes

  14. Artificial Lift Systems Market is expected to reach USD 19,806...

    Open Energy Info (EERE)

    Full TOC at http:www.transparencymarketresearch.comartificial-lift-system-market.html Products segments analyzed in this study include electrical submersible pump, rod lift,...

  15. Prediction of Face-Lift Outcomes Using the Preoperative Supine Test

    E-Print Network [OSTI]

    Hsu, Charles; Gruber, Ronald P.; Dosanjh, Amarjit

    2009-01-01T23:59:59.000Z

    7 INNOVATIVE TECHNIQUES Prediction of Face-Lift OutcomesFace-lift Á Meloplasty Á Prediction Á Rhytidectomy Patientstest to give patients a prediction of their appearance after

  16. Service network design optimization for Army Aviation lift planning

    E-Print Network [OSTI]

    Mogensen, Matthew D. (Matthew David)

    2014-01-01T23:59:59.000Z

    The need for optimized aviation lift planning is becoming increasingly important as the United States and her allies participate in the Global War on Terror (GWOT). As part of a comprehensive effort, our nation's fighting ...

  17. Flight test measurements and theoretical lift prediction for flow energizers

    E-Print Network [OSTI]

    Pradhan, Amit Aravind

    1986-01-01T23:59:59.000Z

    OF SCIENCE May 1986 Major Subject: Aerospace Engineering FLIGHT TEST MEASUREMENTS AND THEORETICAL LIFT PREDICTION FOR FLOW ENERGIZERS A Thesis by AHIT ARAVIND PRADHAN Approved as to style and content by: Donald T. Mard (Chairman of Committee...) Howard L. Chevalier (Member) Garng H. Huang (Member) gg~j(EC( C, Clogs' Malter E. Haisler (Head of Department) Hay 1986 ABSTRACT Flight Test Measurements and Theoretical Lift prediction for Flow Energizers. (May 1986) Amit Aravind Pradhan, B...

  18. Next Story > SC DMV lifting drivers' suspensions this week

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    The State Next Story > SC DMV lifting drivers' suspensions this week Researcher: Zombie fads peak COLUMBIA, S.C. -- Zombies seem to be everywhere these days. In the popular TV series "The Walking Dead at the University of California at Davis. Lauro said she keeps track of zombie movies, TV shows and video games

  19. Complex gas/lift gathering system project in Nigeria

    SciTech Connect (OSTI)

    Not Available

    1981-08-01T23:59:59.000Z

    Installing a gas lift and gathering system in Nigeria's Makaraba oil field proved a complex task because of the swampy site conditions and the influence of the tides on the water depths. All work required floating equipment, including a specially made lay barge and amphibious swamp buggies. The numerous well-head connections and link-ups further complicated the job.

  20. Lifting Rationality Assumptions in Binary Aggregation Umberto Grandi and Ulle Endriss

    E-Print Network [OSTI]

    Endriss, Ulle

    Lifting Rationality Assumptions in Binary Aggregation Umberto Grandi and Ulle Endriss Institute aggregation procedure will lift the rationality assumptions from the in- dividual to the collective level, i an axiomatic characterisation of the class of aggregation proce- dures that will lift all rationality

  1. Control structure design for stabilizing unstable gas-lift oil wells

    E-Print Network [OSTI]

    Skogestad, Sigurd

    Control structure design for stabilizing unstable gas-lift oil wells Esmaeil Jahanshahi, Sigurd valve is the recommended solution to prevent casing-heading instability in gas-lifted oil wells. Focus to be effective to stabilize this system. Keywords: Oil production, two-phase flow, gas-lift, controllability, H

  2. Gas-lift technology applied to dewatering of coalbed methane wells in the black warrior basin

    SciTech Connect (OSTI)

    Johnson, K.J.; Coats, A. (Otis Engineering Corp., Dallas, TX (United States)); Marinello, S.A. (Colorado School of Mines, Golden, CO (United States))

    1992-11-01T23:59:59.000Z

    Coalbed methane (CBM) wells are usually dewatered with sucker rod or progressive cavity pumps to reduce wellbore water levels, although not without problems. This paper describes high-volume artificial-lift technology that incorporates specifically designed gas-lift methods to dewater Black Warrior CBM wells. Gas lift provides improved well maintenance and production optimization by the use of conventional wireline service methods.

  3. Lifting task design associate: a knowledge-based system

    E-Print Network [OSTI]

    Brooks, Susan Elaine

    1993-01-01T23:59:59.000Z

    sophisticated systems to aid in radar operations (Newquist, 1991). The first successful system is considered to be MYCIN This system was developed in the early 1970's to assist medical professionals in the diagnosis of hepatitis and meningitis (Hochron, 1990...LIFTING TASK DESIGN ASSOCIATE: A KNOWLEDGE-BASED SYSTEM A Thesis by Susan Elaine Brooks Submitted to the Oflice of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...

  4. Complex gas/lift gathering system project in Nigeria

    SciTech Connect (OSTI)

    Not Available

    1981-08-01T23:59:59.000Z

    A new gas lift and gathering system is located in the Makaraba oil field, Nigeria. It connects 12 wellheads to a flow station by a series of 6-in. pipelines and one 16-in. trunk-line. The complexity of the project was due to the swampy site conditions which necessitated all work being conducted with floating plant, including a specially made laybarge and amphibious swamp buggies.

  5. High-lift chemical heat pump technologies for industrial processes

    SciTech Connect (OSTI)

    Olszewski, M.; Zaltash, A.

    1995-03-01T23:59:59.000Z

    Traditionally industrial heat pumps (IHPs) have found applications on a process specific basis with reject heat from a process being upgraded and returned to the process. The IHP must be carefully integrated into a process since improper placement may result in an uneconomic application. Industry has emphasized a process integration approach to the design and operation of their plants. Heat pump applications have adopted this approach and the area of applicability was extended by utilizing a process integrated approach where reject heat from one process is upgraded and then used as input for another process. The DOE IHP Program has extended the process integration approach of heat pump application with a plant utility emphasis. In this design philosophy, reject heat from a process is upgraded to plant utility conditions and fed into the plant distribution system. This approach has the advantage that reject heat from any pr@s can be used as input and the output can be used at any location within the plant. Thus the approach can be easily integrated into existing industrial applications and all reject heat streams are potential targets of opportunity. The plant utility approach can not be implemented without having heat pumps with high-lift capabilities (on the order of 65{degree}C). Current heat pumps have only about half the lift capability required. Thus the current emphasis for the DOE IHP Program is the development of high lift chemical heat pumps that can deliver heat more economically to higher heat delivery temperatures. This is achieved with innovative cooling (refrigeration) and heating technologies which are based on advanced cycles and advanced working fluids or a combination of both. This paper details the plan to develop economically competitive, environmentally acceptable heat pump technologies that are capable of providing the delivery temperature and lift required to supply industrial plant utility-grade process heating and/or cooling.

  6. Advanced wind turbine with lift cancelling aileron for shutdown

    DOE Patents [OSTI]

    Coleman, Clint (Warren, VT); Juengst, Theresa M. (Warren, VT); Zuteck, Michael D. (Kemah, TX)

    1996-06-18T23:59:59.000Z

    An advanced aileron configuration for wind turbine rotors featuring an independent, lift generating aileron connected to the rotor blade. The aileron has an airfoil profile which is inverted relative to the airfoil profile of the main section of the rotor blade. The inverted airfoil profile of the aileron allows the aileron to be used for strong positive control of the rotation of the rotor while deflected to angles within a control range of angles. The aileron functions as a separate, lift generating body when deflected to angles within a shutdown range of angles, generating lift with a component acting in the direction opposite the direction of rotation of the rotor. Thus, the aileron can be used to shut down rotation of the rotor. The profile of the aileron further allows the center of rotation to be located within the envelope of the aileron, at or near the centers of pressure and mass of the aileron. The location of the center of rotation optimizes aerodynamically and gyroscopically induced hinge moments and provides a fail safe configuration.

  7. DOE Fuel Cell Technologies Office Record 14010: Industry Deployed Fuel Cell Powered Lift Trucks

    Broader source: Energy.gov [DOE]

    This program record from the U.S. Department of Energy's Fuel Cell Technologies Office provides information about fuel cell powered lift trucks deployed by industry.

  8. Adaptive Detached Eddy Simulation of a High Lift Wing with Active...

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

    and slat support). Adaptive Detached Eddy Simulation of a High Lift Wing with Active Flow Control PI Name: Kenneth Jansen PI Email: jansenke@colorado.edu Institution:...

  9. Fuel Cell-Powered Lift Truck Fleet Deployment Projects Final Technical Report May 2014

    SciTech Connect (OSTI)

    Klingler, James J [GENCO Infrastructure Solutions, Inc.] [GENCO Infrastructure Solutions, Inc.

    2014-05-06T23:59:59.000Z

    The overall objectives of this project were to evaluate the performance, operability and safety of fork lift trucks powered by fuel cells in large distribution centers. This was accomplished by replacing the batteries in over 350 lift trucks with fuel cells at five distribution centers operated by GENCO. The annual cost savings of lift trucks powered by fuel cell power units was between $2,400 and $5,300 per truck compared to battery powered lift trucks, excluding DOE contributions. The greatest savings were in fueling labor costs where a fuel cell powered lift truck could be fueled in a few minutes per day compared to over an hour for battery powered lift trucks which required removal and replacement of batteries. Lift truck operators where generally very satisfied with the performance of the fuel cell power units, primarily because there was no reduction in power over the duration of a shift as experienced with battery powered lift trucks. The operators also appreciated the fast and easy fueling compared to the effort and potential risk of injury associated with switching heavy batteries in and out of lift trucks. There were no safety issues with the fueling or operation of the fuel cells. Although maintenance costs for the fuel cells were higher than for batteries, these costs are expected to decrease significantly in the next generation of fuel cells, making them even more cost effective.

  10. FoP: Never-ending face recognition and data lifting. Julien Subercaze

    E-Print Network [OSTI]

    Boyer, Edmond

    Services; I.2.6 [Artificial in- telligence]: Learning--Learning Keywords face recognition, data liftingFoP: Never-ending face recognition and data lifting. Julien Subercaze Université de Saint.gravier@univ-st-etienne.fr ABSTRACT In this demonstration, we present Faces of Politics (FoP), a face detection system from pictures

  11. Can We Distinguish Biological Motions of Virtual Humans? Perceptual Study With Captured Motions of Weight Lifting.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Information Systems-- Animations ­ Artificial, augmented, and virtual realities Keywords: Human Motions of Weight Lifting. Ludovic Hoyet IRISA - INRIA Bunraku Team, Rennes Franck Multon Mouvement Sport Sant of Edinburgh Figure 1: Subject lifting a 6kg dumbbell: video of a real motion (up) and corresponding captured

  12. Effect of Flexural and Torsional Wing Flexibility on Lift Generation in Hoverfly Flight

    E-Print Network [OSTI]

    Wood, Robert

    SYMPOSIUM Effect of Flexural and Torsional Wing Flexibility on Lift Generation in Hoverfly Flight of the artificial wing is comparable to that of the natural wing. To emulate the torsional flexibility at the wing of attack. Maximum lift was achieved when the stiffness of the hinge was similar to that of a hoverfly

  13. Vehicle Dispatching Problem at the Container Terminal with Tandem Lift Quay Cranes 

    E-Print Network [OSTI]

    Xing, Yao

    2013-07-09T23:59:59.000Z

    , the tandem lift operations bring new challenges to the vehicle dispatching at terminals and this has become a big issue in the application of tandem lift QCs. The vehicle dispatching at terminals is to enhance the QCs’ productivities by coordinating the QCs...

  14. Vehicle Dispatching Problem at the Container Terminal with Tandem Lift Quay Cranes

    E-Print Network [OSTI]

    Xing, Yao

    2013-07-09T23:59:59.000Z

    , the tandem lift operations bring new challenges to the vehicle dispatching at terminals and this has become a big issue in the application of tandem lift QCs. The vehicle dispatching at terminals is to enhance the QCs’ productivities by coordinating the QCs...

  15. Construction of thin shell architectural forms by the lift-shape process

    E-Print Network [OSTI]

    Marsh, James Hyde

    1963-01-01T23:59:59.000Z

    Laboratories, Incorporated, sponsored the investigation of the potentials of the Lift-Shape system. The purpose of this thesis is to present the results of the construction of a fifty foot span parabolic dome of revolution built by the Lift-Shape process...

  16. Cracked lifting lug welds on ten-ton UF{sub 6} cylinders

    SciTech Connect (OSTI)

    Dorning, R.E. [Martin Marietta Energy Systems, Inc., Piketon, OH (United States)

    1991-12-31T23:59:59.000Z

    Ten-ton, Type 48X, UF{sub 6} cylinders are used at the Portsmouth Gaseous Diffusion Plant to withdraw enriched uranium hexafluoride from the cascade, transfer enriched uranium hexafluoride to customer cylinders, and feed enriched product to the cascade. To accomplish these activities, the cylinders are lifted by cranes and straddle carriers which engage the cylinder lifting lugs. In August of 1988, weld cracks on two lifting lugs were discovered during preparation to lift a cylinder. The cylinder was rejected and tagged out, and an investigating committee formed to determine the cause of cracking and recommend remedial actions. Further investigation revealed the problem may be general to this class of cylinder in this use cycle. This paper discusses the actions taken at the Portsmouth site to deal with the cracked lifting lug weld problem. The actions include inspection activities, interim corrective actions, metallurgical evaluation of cracked welds, weld repairs, and current monitoring/inspection program.

  17. The design of a control architecture for a heavy-lift precision manipulator for use in contact with the environment

    E-Print Network [OSTI]

    Becker, William T. (William Theodore Leroy)

    2006-01-01T23:59:59.000Z

    Robotic manipulators can be used to enhance the strength and dexterity of a human user. This thesis considers the design of a controller for a heavy-lift manipulator for lifting and inserting payloads onto aircraft on the ...

  18. Decision Matrix Screening Tool to Identify the Best Artificial Lift Method for Liquid-loaded Gas Wells

    E-Print Network [OSTI]

    Soponsakulkaew, Nitsupon

    2010-10-12T23:59:59.000Z

    Liquid loading is a serious problem in gas wells. Many proven artificial lift methods have been used to alleviate this problem. However, a complete workflow to determine the most suitable artificial lift method for given well conditions does...

  19. Gas lift valve failure mode analysis and the design of a thermally-actuated positive-locking safety valve

    E-Print Network [OSTI]

    Gilbertson, Eric (Eric W.)

    2010-01-01T23:59:59.000Z

    Gas-lifted oil wells are susceptible to failure through malfunction of gas lift valves. This is a growing concern as offshore wells are drilled thousands of meters below the ocean floor in extreme temperature and pressure ...

  20. Self-actuating mechanical grapple for lifting and handling objects

    DOE Patents [OSTI]

    Hovis, Gregory L. (North Augusta, SC); Etheredge, Jr., Carl T. (Tuscaloosa, AL)

    2001-01-01T23:59:59.000Z

    A self-actuating mechanical grapple for lifting and handling an object includes a support housing with upper and lower portions and defining an internal recess. The lower portion of the housing includes a bottom opening which communicates with the recess. Preferably, two or three grapple jaws are provided, the first end portions of which are connected to the housing and the second end portions thereof remain free for engaging an object. The grapple jaws are pivotable between open and closed positions. An actuator member is slidably positioned in the recess for opening and closing the jaws, and includes a cam portion in operative engagement with the first end portions of the jaws in a manner to pivot the jaws when the actuator member moves axially relative to the housing. The actuator member includes a rotatable member with at least one contact member. A locking member or logic ring includes grooves defining open and closed positions of the jaws and is fixedly mounted to the internal surface of the housing and cooperates with the rotatable member. A plunger member is axially movable in the housing for contacting an object and includes at least one stud member for immovably engaging the contact member.

  1. Advanced wind turbine with lift-destroying aileron for shutdown

    DOE Patents [OSTI]

    Coleman, Clint (Warren, VT); Juengst, Theresa M. (Warren, VT); Zuteck, Michael D. (Kemah, TX)

    1996-06-18T23:59:59.000Z

    An advanced aileron configuration for wind turbine rotors featuring an aileron with a bottom surface that slopes upwardly at an angle toward the nose region of the aileron. The aileron rotates about a center of rotation which is located within the envelope of the aileron, but does not protrude substantially into the air flowing past the aileron while the aileron is deflected to angles within a control range of angles. This allows for strong positive control of the rotation of the rotor. When the aileron is rotated to angles within a shutdown range of deflection angles, lift-destroying, turbulence-producing cross-flow of air through a flow gap, and turbulence created by the aileron, create sufficient drag to stop rotation of the rotor assembly. The profile of the aileron further allows the center of rotation to be located within the envelope of the aileron, at or near the centers of pressure and mass of the aileron. The location of the center of rotation optimizes aerodynamically and gyroscopically induced hinge moments and provides a fail safe configuration.

  2. aircraft by type of lift: Topics by E-print Network

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

    automatically lift-off from the substrate. We because of cost reduction on satellite system level due to reduced starting weight of the rocket 10 ASDJournal (2010), Vol. 2, No....

  3. Analysis of crane and lifting accidents in North America from 2004 to 2010

    E-Print Network [OSTI]

    King, Ray Addison

    2012-01-01T23:59:59.000Z

    Cranes are the fundamental machinery used during lifting operations, and are crucial to the construction industry. Several key construction processes would be impossible without cranes and the benefits they provide. Cranes ...

  4. Case Study - The Challenge: Saving Energy at a Sewage Lift Station...

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

    With a total implementation cost of 16,000, the project yielded a simple payback of 5.4 years. Case Study - The Challenge: Saving Energy at a Sewage Lift Station Through Pump...

  5. Investigation into the discrepancies between computational fluid dynamics lift predictions and experimental results

    E-Print Network [OSTI]

    Fairman, Randall S. (Randall Scott), 1967-

    2002-01-01T23:59:59.000Z

    An analysis of current computational fluid dynamics capabilities in predicting mean lift forces for two dimensional foils is conducted. It is shown that both integral boundary layer theory and Reynolds Averaged Navier ...

  6. Designing sustainable heavy lift launch vehicle architectures adaptability, lock-in, and system evolution

    E-Print Network [OSTI]

    Silver, Matthew Robin

    2005-01-01T23:59:59.000Z

    Long term human space exploration depends on the development of a sustainable heavy lift launch vehicle (HLLV). But what exactly is sustainability in the context of launch systems and how can it addressed in the design ...

  7. Design and construction of a practical and portable household lifting-aid for the physically impaired

    E-Print Network [OSTI]

    Sanz, Gregory L. B

    2008-01-01T23:59:59.000Z

    TV's to mini-fridges, the design of a hand operated lift, to be lightweight and easily disassembled, 200 lbs max. Interviews were conducted and observations were made in order to determine various tasks that proved ...

  8. High-precision position control of a heavy-lift manipulator in a dynamic environment

    E-Print Network [OSTI]

    Garretson, Justin R. (Justin Richard)

    2005-01-01T23:59:59.000Z

    This thesis considers the control of a heavy-lift serial manipulator operating on the deck of a large ocean vessel. This application presents a unique challenge for high- precision control because the system must contend ...

  9. Solitary lift : redesigning the base and tilter modules to meet customer needs

    E-Print Network [OSTI]

    Vasquez, Elliot B. (Elliot Benjamin), 1982-

    2004-01-01T23:59:59.000Z

    A theoretical investigation towards the redesign of the base and the tilting module of the Solitary Lift prototype improved the machine with a weight reduction of 5.731bs. Besides lighter weight, the other criteria used ...

  10. An investigation of symmetry in upper extremity strength during sagittal plane lifting tasks

    E-Print Network [OSTI]

    Key, Wendy Ross

    1994-01-01T23:59:59.000Z

    438. 76 461. 61 S. D. 26. 73 29. 60 18. 40 25. 03 103. 42 86. 07 Note: Data collected at a rate of 50 Hz. 52 APPENDIX I LIFTING TESTS DATA 53 LIFTING TESTS DATA (N) STOOP LIFT Left Ri ht SQUAT LIFT Left Ri ht Sub'ect Trial Av . S. D. Av . S.... D. Av . S. D. Av . S. D 2 137. 89 1. 97 118. 05 5. 30 162. 09 7. 77 148. 83 10. 75 3 113. 11 5. 56 97. 01 5. 14 120. 05 3. 83 130. 33 3. 72 4 143. 98 11. 16 134. 55 5. 78 119. 56 5. 77 129. 57 4. 50 2 134. 06 13. 08 88. 69 10. 18 135. 31 9. 04...

  11. Predictive pre-cooling control for low lift radiant cooling using building thermal mass

    E-Print Network [OSTI]

    Gayeski, Nicholas (Nicholas Thomas)

    2010-01-01T23:59:59.000Z

    Low lift cooling systems (LLCS) hold the potential for significant energy savings relative to conventional cooling systems. An LLCS is a cooling system which leverages existing HVAC technologies to provide low energy cooling ...

  12. Fuel Properties to Enable Lifted-Flame Combustion

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

    Roles & Responsibilities Advanced Model Development Project Management ModelingOptimization Fuel Identification & Property Testing Engine Demonstration Spray Characterization...

  13. USING A CONTAINMENT VESSEL LIFTING APPARATUS FOR REMOTE OPERATIONS OF SHIPPING PACKAGES

    SciTech Connect (OSTI)

    Loftin, Bradley [Savannah River National Laboratory; Koenig, Richard [Savannah River National Laboratory

    2013-08-08T23:59:59.000Z

    The 9977 and the 9975 shipping packages are used in various nuclear facilities within the Department of Energy. These shipping packages are often loaded in designated areas with designs using overhead cranes or A-frames with lifting winches. However, there are cases where loading operations must be performed in remote locations where these facility infrastructures do not exist. For these locations, a lifting apparatus has been designed to lift the containment vessels partially out of the package for unloading operations to take place. Additionally, the apparatus allows for loading and closure of the containment vessel and subsequent pre-shipment testing. This paper will address the design of the apparatus and the challenges associated with the design, and it will describe the use of the apparatus.

  14. The Eisenhart lift: a didactical introduction of modern geometrical concepts from Hamiltonian dynamics

    E-Print Network [OSTI]

    Marco Cariglia; Filipe Kelmer Alves

    2015-03-02T23:59:59.000Z

    This work originates from part of a final year undergraduate research project on the Eisenhart lift for Hamiltonian systems. The Eisenhart lift is a procedure to describe trajectories of a classical natural Hamiltonian system as geodesics in an enlarged space. We point out that it can be easily obtained from basic principles of Hamiltonian dynamics, and as such it represents a useful didactical way to introduce graduate students to several modern concepts of geometry applied to physics: curved spaces, both Riemannian and Lorentzian, conformal transformations, geometrisation of interactions and extra dimensions, geometrisation of dynamical symmetries. For all these concepts the Eisenhart lift can be used as a theoretical tool that provides easily achievable examples, with the added benefit of also being a topic of current research with several applications, among which the study of dynamical systems and non-relativistic holography.

  15. The Eisenhart lift: a didactical introduction of modern geometrical concepts from Hamiltonian dynamics

    E-Print Network [OSTI]

    Cariglia, Marco

    2015-01-01T23:59:59.000Z

    This work originates from part of a final year undergraduate research project on the Eisenhart lift for Hamiltonian systems. The Eisenhart lift is a procedure to describe trajectories of a classical natural Hamiltonian system as geodesics in an enlarged space. We point out that it can be easily obtained from basic principles of Hamiltonian dynamics, and as such it represents a useful didactical way to introduce graduate students to several modern concepts of geometry applied to physics: curved spaces, both Riemannian and Lorentzian, conformal transformations, geometrisation of interactions and extra dimensions, geometrisation of dynamical symmetries. For all these concepts the Eisenhart lift can be used as a theoretical tool that provides easily achievable examples, with the added benefit of also being a topic of current research with several applications, among which the study of dynamical systems and non-relativistic holography.

  16. Lift and down-gradient shear-induced diffusion in Red Blood Cell suspensions

    E-Print Network [OSTI]

    Xavier Grandchamp; Gwennou Coupier; Aparna Srivastav; Christophe Minetti; Thomas Podgorski

    2013-02-24T23:59:59.000Z

    The distribution of Red Blood Cells in a confined channel flow is inhomogeneous and shows a marked depletion near the walls due to a competition between migration away from the walls and shear-induced diffusion resulting from interactions between particles. We investigated the lift of RBCs in a shear flow near a wall and measured a significant lift velocity despite the tumbling motion of cells. We also provide values for the collective and anisotropic shear-induced diffusion of a cloud of RBCs, both in the direction of shear and in the direction of vorticity. A generic down-gradient subdiffusion characterized by an exponent 1/3 is highlighted.

  17. Observer Design for Gas Lifted Oil Wells Ole Morten Aamo, Gisle Otto Eikrem, Hardy Siahaan, and Bjarne Foss

    E-Print Network [OSTI]

    Foss, Bjarne A.

    Observer Design for Gas Lifted Oil Wells Ole Morten Aamo, Gisle Otto Eikrem, Hardy Siahaan flow systems is an area of increasing interest for the oil and gas industry. Oil wells with highly related to oil and gas wells exist, and in this study, unstable gas lifted wells will be the area

  18. Abstract--This paper describes a motion generation method for dynamic lifting by a humanoid robot. The proposed

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    in Fig. 1(b). If useful skills of the humans using preliminary motion can be applied to robotAbstract--This paper describes a motion generation method for dynamic lifting by a humanoid robot to facilitate the lifting movement. In particular, the idea is to perform a preliminary motion in order

  19. Onset of water stress, hysteresis in plant conductance, and hydraulic lift: Scaling soil water dynamics

    E-Print Network [OSTI]

    Katul, Gabriel

    for harvesting most of the soil water, which then flows within the plant vascular system up to the leaves where have been proposed and used [Li et al., 1999; Vrugt et al., 2001]. Usually, water extraction by rootsOnset of water stress, hysteresis in plant conductance, and hydraulic lift: Scaling soil water

  20. From The Boston Globe, February 22, 2008 Dance troupe is game for some heavy lifting

    E-Print Network [OSTI]

    Machery, Edouard

    From The Boston Globe, February 22, 2008 Dance troupe is game for some heavy lifting From left and uses heavy steel pieces as props? A game-show story? Who are these people? "Ideally, we're a mix beyond the industry, but steel is part of the soul of the town. . . . When the metal is molten and hot

  1. 090109-038 1 Abstract Air filled salvage lift bags have been a problem and

    E-Print Network [OSTI]

    Wood, Stephen L.

    to aid in the recovery of sunken vessels and heavy objects from the ocean depths has been around are of the open bottom type that are commonly used in the marine salvage industry today. Despite their usefulness) presented in this paper eliminates the salvage lift bag danger for the marine industry. The automated purge

  2. Decision matrix for liquid loading in gas wells for cost/benefit analyses of lifting options

    E-Print Network [OSTI]

    Park, Han-Young

    2008-10-10T23:59:59.000Z

    consists of a decision algorithm built around a decision tree. Unlike other data mining techniques, decision trees quickly allow for subdividing large initial datasets into successively smaller sets by a series of decision rules. The rules are based... Page 4.1 Introduction ........................................................................... 41 4.2 Decision Tree & Preliminary Screening [Round 1].............. 43 4.3 Technical Evaluation of Lifting Options [Round 2...

  3. air-lift bioreactor system: Topics by E-print Network

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

    air-lift bioreactor system 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 A new bioreactor system for...

  4. LiFTinG: Lightweight Freerider-Tracking in Gossip Rachid Guerraoui

    E-Print Network [OSTI]

    Guerraoui, Rachid

    by simulations and PlanetLab experiments. In a 300-node system, where a stream of 674 kbps is broadcast, LiFTinGLiFTinG: Lightweight Freerider-Tracking in Gossip Rachid Guerraoui EPFL rachid.guerraoui@epfl.ch K IIT Guwahati swagatika@iitg.ernet.in Abstract This paper presents LiFTinG, the first protocol

  5. Futurrex NR9-3000PY Lift-Off Ph iPhotoresist

    E-Print Network [OSTI]

    . The following SEM image is of NR9-3000PY geared for thicker lift-off applications at approximately 5µm thickness9-3000PY 3 thi k3 µm thickness Spin Coat at 3000 rpm Post Coat Bake 120°C / 60 s eorcopy ASML / 80 i

  6. FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS

    E-Print Network [OSTI]

    Guerrini, Carla

    FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS #3; September discrete wavelet transform or two band subband filtering with finite filters can be decomposed of the wavelet or subband filters into elementary matrices. That such a factorization is possible is well

  7. FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS \\Lambda

    E-Print Network [OSTI]

    Kutil, Rade

    FACTORING WAVELET TRANSFORMS INTO LIFTING STEPS INGRID DAUBECHIES y AND WIM SWELDENS \\Lambda any discrete wavelet transform or two band subband filtering with finite filters can be decomposed structures. This decomposition corresponds to a factorization of the polyphase matrix of the wavelet

  8. Autoignited laminar lifted flames of propane in coflow jets with tribrachial edge and mild combustion

    SciTech Connect (OSTI)

    Choi, B.C.; Kim, K.N.; Chung, S.H. [School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-744 (Korea)

    2009-02-15T23:59:59.000Z

    Characteristics of laminar lifted flames have been investigated experimentally by varying the initial temperature of coflow air over 800 K in the non-premixed jets of propane diluted with nitrogen. The result showed that the lifted flame with the initial temperature below 860 K maintained the typical tribrachial structure at the leading edge, which was stabilized by the balance mechanism between the propagation speed of tribrachial flame and the local flow velocity. For the temperature above 860 K, the flame was autoignited without having any external ignition source. The autoignited lifted flames were categorized in two regimes. In the case with tribrachial edge structure, the liftoff height increased nonlinearly with jet velocity. Especially, for the critical condition near blowout, the lifted flame showed a repetitive behavior of extinction and reignition. In such a case, the autoignition was controlled by the non-adiabatic ignition delay time considering heat loss such that the autoignition height was correlated with the square of the adiabatic ignition delay time. In the case with mild combustion regime at excessively diluted conditions, the liftoff height increased linearly with jet velocity and was correlated well with the square of the adiabatic ignition delay time. (author)

  9. Cost-Effective Integration of Efficient Low-Lift Baseload Cooling Equipment: FY08 Final Report

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Armstrong, P. R.; Wang, Weimin; Fernandez, Nicholas; Cho, Heejin; Goetzler, W.; Burgos, J.; Radhakrishnan, R.; Ahlfeldt, C.

    2010-01-31T23:59:59.000Z

    Documentation of a study to investigate one heating, ventilation and air conditioning (HVAC) system option, low-lift cooling, which offers potentially exemplary HVAC energy performance relative to American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) Standard 90.1-2004.

  10. The effect of sound on the lift of an airfoil

    E-Print Network [OSTI]

    Kitowski, John Victor

    1962-01-01T23:59:59.000Z

    which was mounted near the inlet of the test section and by previous tunnel calibration data. Smoke Generation +oke was generated by vaporizing kerosene under slight pressure. The heat necessary for vaporization was obtained by use of a resistance... it was introduced into the free stream through a number of equally spaced nozzles. The smoke rake was located in the settling chamber of the tunnel. No apparent difficulty with kerosene condensate depositing on the model was encountered. Model A NACA 23015...

  11. Development of High-Efficiency Low-Lift Vapor Compression System - Final Report

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Armstrong, Peter; Wang, Weimin; Fernandez, Nicholas; Cho, Heejin; Goetzler, W.; Burgos, J.; Radhakrishnan, R.; Ahlfeldt, C.

    2010-03-31T23:59:59.000Z

    PNNL, with cofunding from the Bonneville Power Administration (BPA) and Building Technologies Program, conducted a research and development activity targeted at addressing the energy efficiency goals targeted in the BPA roadmap. PNNL investigated an integrated heating, ventilation and air conditioning (HVAC) system option referred to as the low-lift cooling system that potentially offers an increase in HVAC energy performance relative to ASHRAE Standard 90.1-2004.

  12. [hal-00529816, v2] On optimizing over lift-and-project closures

    E-Print Network [OSTI]

    Bonami, Pierre

    2010-10-27T23:59:59.000Z

    Oct 27, 2010 ... Page 1 ... lift-and-project cuts from the initial formulation of a mixed integer linear pro ..... Now the last quantity is non-negative since u ? 0, A?x?b, ?T x>?0 ...... procedure such as ours could be used, and what issues should be dealt with. ... branch-and-cut algorithm (we don't use dynamic search since it is ...

  13. Algorithm 2: p-adic Lifting with Rational Reconstruction Input: Matrix A Qnn

    E-Print Network [OSTI]

    Algorithm 2: p-adic Lifting with Rational Reconstruction Input: Matrix A Qn×n [z], vector B Qn [z in A and B. 2. Pick a prime p which splits m(z) and find all roots r1, . . . , rd of m(z) mod p. 3. Set k := 1, error := B and compute A-1 (ri) mod p for i = 1, 2, . . . , d. If A(rj) is not invertible (mod p

  14. The Effects of Recharge, Agricultural Pumping and Municipal Pumping on Springflow and Pumping Lifts Within the Edwards Aquifer

    E-Print Network [OSTI]

    McCarl, Bruce A.

    The Effects of Recharge, Agricultural Pumping and Municipal Pumping on Springflow and Pumping Lifts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 The Effects of Recharge and Pumping Over Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 The Effects of Agricultural Pumping, Municipal Pumping and Recharge on Comal Springflow

  15. Lift producing device exhibiting low drag and reduced ventilation potential and method for producing the same

    DOE Patents [OSTI]

    Caldwell, Richard A. (115 Wimico Dr., Indian Harbour Beach, FL 32937)

    1991-01-01T23:59:59.000Z

    A lift producing device is disclosed which is adapted to be connected to a vehicle to provide lift to the vehicle when the vehicle is moved relative to a first fluid medium having a first density and viscosity and being in contact with a second fluid medium adjacent the vehicle. The second fluid medium has a second fluid density which is different from the first fluid density. The lift producing device comprises opposed first and second major surfaces joined at a longitudinally extending leading edge and at a longitudinally extending trailing edge, with at least a portion of the longitudinally extending leading edge being spaced from the longitudinally extending trailing edge by a predetermined mean chord length. When the vehicle is moved relative to the first fluid medium at a velocity within a range of predetermined velocities, with each of the velocities having a direction inclined from a plane extending through the leading edge and the trailing edge within a predetermined angular range, a region of high pressure is generated in the first fluid medium adjacent the first major surface and a region of low pressure is generated in the first fluid medium adjacent the second major surface. The lift producing device has a cross-sectional shape which will generate a pressure distribution around the device when the vehicle is moved relative to the first fluid medium at a velocity within the range of predetermined velocities such that the first fluid medium exhibits attached laminar flow along the device for a portion of the predetermined mean chord length from the leading edge to the trailing edge and will neither form a laminar separation bubble adjacent the second major surface of the device, nor exhibit turbulent separation adjacent the second major surface for substantially all of the predetermined mean chord length from the leading edge to the trailing edge. The portion along which attached laminar flow is maintained is the longest portion which will still fulfill the flow separation requirements. A method for producing the foil is also disclosed.

  16. Method of lift-off patterning thin films in situ employing phase change resists

    DOE Patents [OSTI]

    Bahlke, Matthias Erhard; Baldo, Marc A; Mendoza, Hiroshi Antonio

    2014-09-23T23:59:59.000Z

    Method for making a patterned thin film of an organic semiconductor. The method includes condensing a resist gas into a solid film onto a substrate cooled to a temperature below the condensation point of the resist gas. The condensed solid film is heated selectively with a patterned stamp to cause local direct sublimation from solid to vapor of selected portions of the solid film thereby creating a patterned resist film. An organic semiconductor film is coated on the patterned resist film and the patterned resist film is heated to cause it to sublime away and to lift off because of the phase change.

  17. Embedded Model Predictive Control for an Electric Submersible Pump on a Programmable Logic Controller*

    E-Print Network [OSTI]

    Johansen, Tor Arne

    Pumps (ESP) can be in- stalled in oil wells to create artificial lift, in order to increase recovery system knowledge is assumed. In [12], [13], a model of an ESP-lifted well is developed, the control and stability, while the MPC controller improves the performance of the overall multivari- able system

  18. 1. Introduction A challenging problem for Artificial Intelligence (AI) is the modeling and application of

    E-Print Network [OSTI]

    McLaren, Bruce Martin

    1 1. Introduction A challenging problem for Artificial Intelligence (AI) is the modeling. On January 28, 1986, the Space Shuttle Challenger was scheduled for lift-off. The evening before the launch temperature predicted for lift-off. Technical evidence was inconclusive, but there appeared

  19. Proposal for the award of a blanket purchase contract for the replacement and maintenance of lifts giving access to the LHC underground areas

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    Proposal for the award of a blanket purchase contract for the replacement and maintenance of lifts giving access to the LHC underground areas

  20. "Dedicated To The Continued Education, Training and Demonstration of PEM Fuel Cell Powered Lift Trucks In Real-World Applications."

    SciTech Connect (OSTI)

    Dever, Thomas J.

    2011-11-29T23:59:59.000Z

    The project objective was to further assist in the commercialization of fuel cell and H2 technology by building further upon the successful fuel cell lift truck deployments that were executed by LiftOne in 2007, with longer deployments of this technology in real-world applications. We involved facilities management, operators, maintenance personnel, safety groups, and Authorities Having Jurisdiction. LiftOne strived to educate a broad group from many areas of industry and the community as to the benefits of this technology. Included were First Responders from the local areas. We conducted month long deployments with end-users to validate the value proposition and the market requirements for fuel cell powered lift trucks. Management, lift truck operators, Authorities Having Jurisdiction and the general public experienced 'hands on' fuel cell experience in the material handling applications. We partnered with Hydrogenics in the execution of the deployment segment of the program. Air Products supplied the compressed H2 gas and the mobile fueler. Data from the Fuel Cell Power Packs and the mobile fueler was sent to the DOE and NREL as required. Also, LiftOne conducted the H2 Education Seminars on a rotating basis at their locations for lift trucks users and for other selected segments of the community over the project's 36 month duration. Executive Summary The technology employed during the deployments program was not new, as the equipment had been used in several previous demos and early adoptions within the material handling industry. This was the case with the new HyPx Series PEM - Fuel Cell Power Packs used, which had been demo'd before during the 2007 Greater Columbia Fuel Cell Challenge. The Air Products HF-150 Fueler was used outdoors during the deployments and had similarly been used for many previous demo programs. The methods used centered on providing this technology as the power for electric sit-down lift trucks at high profile companies operating large fleets. As a long-standing lift truck dealership, LiftOne was able to introduce the fuel cells to such companies in the demanding applications. Accomplishments vs Objectives: We were successful in respect to the stated objectives. The Education Segment's H2 Education Sessions were able to introduce fuel cell technology to many companies and reached the intended broad audience. Also, demos of the lift truck at the sessions as well as the conferences; expos and area events provided great additional exposure. The Deployments were successful in allowing the 6 participating companies to test the 2 fuel cell powered lift trucks in their demanding applications. One of the 6 sites (BMW) eventually adopted over 80 fuel cells from Plug Power. LiftOne was one of the 3 fuel cell demonstrators at BMW for this trial and played a major role in helping to prove the viability and efficiency of this alternative form of energy for BMW. The other 5 companies that participated in the project's deployments were encouraged by the trials and while not converting over to fuel cell power at this time, expressed the desire to revisit acquisition scenarios in the near future as the cost of fuel cells and infrastructure continue to improve. The Education sessions began in March of 2009 at the 7 LiftOne Branches and continued throughout the duration of the project. Attendees came from a large base of lift truck users in North Carolina, South Carolina and Virginia. The sessions were free and invitations were sent out to potential users and companies with intrigue. In addition to the Education content at the sessions (which was offered in a 'H2 101' format), LiftOne was able to demonstrate a working fuel cell powered lift truck, which proved to be a big draw with the 'hands on' experience. LiftOne also demo'd the fuel cell lift trucks at many conferences, expos, professional association meetings, trade shows and 'Green' events in major cities region including Charlotte, Greenville, and Columbia. Such events allowed for H2 Education Material to be presented, and recruit attendees for future sessi

  1. Lift, drag and flow-field measurements around a small ornithopter

    SciTech Connect (OSTI)

    Balakumar, B J [Los Alamos National Laboratory; Chavez - Alarcon, Ramiro [NMSU; Shu, Fangjun [NMSU

    2011-01-12T23:59:59.000Z

    The aerodynamics of a flight-worthy, radio controlled ornithopter is investigated using a combination of Particle-Image Velocimetry (PIV), load cell measurements, and high-speed photography of smoke visualizations. The lift and thrust forces of the ornithopter are measured at various flow speeds, flapping frequencies and angles of attack to characterize the flight performance. These direct force measurements are then compared with forces estimated using control volume analysis on PIV data. High-speed photography of smoke streaks is used to visualize the evolution of leading edge vortices, and to qualitatively infer the effect of wing deformation on the net downwash. Vortical structures in the wake are compared to previous studies on root flapping, and direct measurements of flapping efficiency are used to argue that the current ornithopter operates sub-optimally in converting the input energy into propulsive work.

  2. Epitaxial lift-off of quantum dot enhanced GaAs single junction solar cells

    SciTech Connect (OSTI)

    Bennett, Mitchell F.; Bittner, Zachary S.; Forbes, David V.; Hubbard, Seth M., E-mail: smhsps@rit.edu [Rochester Institute of Technology, Rochester, New York 14623 (United States); Rao Tatavarti, Sudersena; Wibowo, Andree; Pan, Noren; Chern, Kevin [MicroLink Devices, Inc., Niles, Illinois 60714 (United States)] [MicroLink Devices, Inc., Niles, Illinois 60714 (United States); Phillip Ahrenkiel, S. [South Dakota School of Mines and Technology, Rapid City, South Dakota 57701 (United States)] [South Dakota School of Mines and Technology, Rapid City, South Dakota 57701 (United States)

    2013-11-18T23:59:59.000Z

    InAs/GaAs strain-balanced quantum dot (QD) n-i-p solar cells were fabricated by epitaxial lift-off (ELO), creating thin and flexible devices that exhibit an enhanced sub-GaAs bandgap current collection extending into the near infrared. Materials and optical analysis indicates that QD quality after ELO processing is preserved, which is supported by transmission electron microscopy images of the QD superlattice post-ELO. Spectral responsivity measurements depict a broadband resonant cavity enhancement past the GaAs bandedge, which is due to the thinning of the device. Integrated external quantum efficiency shows a QD contribution to the short circuit current density of 0.23?mA/cm{sup 2}.

  3. 126 USDA Forest Service Proceedings RMRS-P-50. 2007 Comparing Cold-Stored and Freshly Lifted

    E-Print Network [OSTI]

    are lifted from December to March and temporarily placed in cold storage (2 °C [36 °F]) for 10 to 14 days to this transplanting problem. In this study, cold storage was investigated to increase dormancy status of seedlings

  4. NDT&E International 40 (2007) 555565 Lift-off effect in high-frequency eddy current conductivity spectroscopy

    E-Print Network [OSTI]

    Nagy, Peter B.

    2007-01-01T23:59:59.000Z

    NDT&E International 40 (2007) 555­565 Lift-off effect in high-frequency eddy current conductivity online 12 June 2007 Abstract Precision eddy current measurements have been shown to be capable, the eddy current inspection frequency has to be as high as 50­80 MHz. Unfortunately, spurious self

  5. Lifting from Earth Marshall is NASA's designated developer and integrator of launch systems. The Center has the engineering capabilities

    E-Print Network [OSTI]

    Waliser, Duane E.

    Lifting from Earth Marshall is NASA's designated developer and integrator of launch systems travel evolves, Marshall will play a major role in delivering the systems and technology needed for the next generation of space launch vehicles. Living and Working in Space Marshall supports work

  6. Patterning of indium tin oxide by projection photoablation and lift-off process for fabrication of flat-panel displays

    E-Print Network [OSTI]

    Jain, Kanti

    Patterning of indium tin oxide by projection photoablation and lift-off process for fabrication online 25 June 2007 Indium tin oxide ITO , an important material used as a transparent conductive oxide in such fabrication. Therefore, innovations in patterning tech- nology, especially for materials such as indium tin

  7. 4/27/12 nsf.gov -National Science Foundation (NSF) News -Can Nature's Beauty Lift Citizens From Poverty?... 1/3www.nsf.gov/news/news_summ.jsp?cntn_id=124002&org=NSF&from=news

    E-Print Network [OSTI]

    4/27/12 nsf.gov - National Science Foundation (NSF) News - Can Nature's Beauty Lift Citizens From Science Foundation (NSF) News - Can Nature's Beauty Lift Citizens From Poverty?... 2/3www Mathematics Nanoscience People & Society Physics Press Release 12076 Can Nature's Beauty Lift Citizens

  8. Stabilization of turbulent lifted jet flames assisted by pulsed high voltage discharge

    SciTech Connect (OSTI)

    Criner, K.; Cessou, A.; Louiche, J.; Vervisch, P. [CORIA UMR 6614 CNRS-Universite et INSA de Rouen, University of Rouen, 76801 Saint Etienne du Rouvray (France)

    2006-01-01T23:59:59.000Z

    To reduce fuel consumption or the pollutant emissions of combustion (furnaces, aircraft engines, turbo-reactors, etc.), attempts are made to obtain lean mixture combustion regimes. These lead to poor stability of the flame. Thus, it is particularly interesting to find new systems providing more flexibility in aiding flame stabilization than the usual processes (bluff-body, stabilizer, quarl, swirl, etc.). The objective is to enlarge the stability domain of flames while offering flexibility at a low energy cost. Evidence is presented that the stabilization of a turbulent partially premixed flame of more than 10 kW can be enhanced by pulsed high-voltage discharges with power consumption less than 0.1% of the power of the flame. The originality of this work is to demonstrate that very effective stabilization of turbulent flames is obtained when high-voltage pulses with very short rise times are used (a decrease by 300% in terms of liftoff height for a given exit jet velocity can be reached) and to provide measurements of minimum liftoff height obtained with discharge over a large range of the stability domain of the lifted jet flame.

  9. Cost-Effective Integration of Efficient Low-Lift Base Load Cooling Equipment

    SciTech Connect (OSTI)

    Jiang, Wei; Winiarski, David W.; Katipamula, Srinivas; Armstrong, Peter R.

    2008-01-14T23:59:59.000Z

    The long-term goal of DOE’s Commercial Buildings Integration subprogram is to develop cost-effective technologies and building practices that will enable the design and construction of net Zero Energy Buildings — commercial buildings that produce as much energy as they use on an annual basis — by 2025. To support this long-term goal, DOE further called for — as part of its FY07 Statement of Needs — the development by 2010 of “five cost-effective design technology option sets using highly efficient component technologies, integrated controls, improved construction practices, streamlined commissioning, maintenance and operating procedures that will make new and existing commercial buildings durable, healthy and safe for occupants.” In response, PNNL proposed and DOE funded a scoping study investigation of one such technology option set, low-lift cooling, that offers potentially exemplary HVAC energy performance relative to ASHRAE Standard 90.1-2004. The primary purpose of the scoping study was to estimate the national technical energy savings potential of this TOS.

  10. State-space modeling and optimal control of ship motions in a seastate

    E-Print Network [OSTI]

    Ulusoy, Talha

    2006-01-01T23:59:59.000Z

    In this thesis, a new state-space model and motion control algorithm are developed from first principles for the improvement of the seakeeping performance of high-speed vessels equipped with lifting appendages that are ...

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

    E-Print Network [OSTI]

    Cortner, James D.

    1996-01-01T23:59:59.000Z

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

  12. A wind turbine blade is ready to be lifted into place at the Windy Point Wind Farm in the Columbia River Gorge. Photo: C. Bruce Forster

    E-Print Network [OSTI]

    A wind turbine blade is ready to be lifted into place at the Windy Point Wind Farm in the Columbia with juvenile bypass systems to keep the smolts out of the turbines. But given the gravity of the [salmon

  13. Published in Proceedings of the InForum'99 Conference Collaborative Management Environment

    E-Print Network [OSTI]

    Potok, Thomas E.

    the Department of Energy (DOE). The initial results of the system usage are very positive. To date, information technologies, the system fulfills an important role as a cost-efficient enterprise information system to do so, for U.S. Government Purposes. maintenance of traditional enterprise information systems

  14. American Recovery & Reinvestment Act: Fuel Cell Hybrid Power Packs and Hydrogen Refueling for Lift Trucks

    SciTech Connect (OSTI)

    Block, Gus

    2011-07-31T23:59:59.000Z

    HEB Grocery Company, Inc. (H-E-B) is a privately-held supermarket chain with 310 stores throughout Texas and northern Mexico. H-E-B converted 14 of its lift reach trucks to fuel cell power using Nuvera Fuel Cells’ PowerEdge™ units to verify the value proposition and environmental benefits associated with the technology. Issues associated with the increasing power requirements of the distribution center operation, along with high ambient temperature in the summer and other operating conditions (such as air quality and floor surface condition), surfaced opportunities for improving Nuvera’s PowerEdge fuel cell system design in high-throughput forklift environments. The project included on-site generation of hydrogen from a steam methane reformer, called PowerTap™ manufactured by Nuvera. The hydrogen was generated, compressed and stored in equipment located outside H-E-B’s facility, and provided to the forklifts by hydrogen dispensers located in high forklift traffic areas. The PowerEdge fuel cell units logged over 25,300 operating hours over the course of the two-year project period. The PowerTap hydrogen generator produced more than 11,100 kg of hydrogen over the same period. Hydrogen availability at the pump was 99.9%. H-E-B management has determined that fuel cell forklifts help alleviate several issues in its distribution centers, including truck operator downtime associated with battery changing, truck and battery maintenance costs, and reduction of grid electricity usage. Data collected from this initial installation demonstrated a 10% productivity improvement, which enabled H-E-B to make economic decisions on expanding the fleet of PowerEdge and PowerTap units in the fleet, which it plans to undertake upon successful demonstration of the new PowerEdge reach truck product. H-E-B has also expressed interst in other uses of hydrogen produced on site in the future, such as for APUs used in tractor trailers and refrigerated transport trucks in its fleet.

  15. The Initiation of Bacterial DNA Replication

    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 InstagramStructureProposedPAGESafetyTed5,AuditTheImpactInforum LIFT

  16. Summary To determine the effects of lifting time and stor-age on water-stress resistance of nursery-grown white spruce

    E-Print Network [OSTI]

    Macdonald, Ellen

    results in reduced water- stress resistance because of a lack of reserves for osmotic adjustment and newSummary To determine the effects of lifting time and stor- age on water-stress resistance in January 1992. The seedlings were placed in nutrient solution and subjected to ­1.1 or ­2.7 MPa water

  17. Analyzing pressure and temperature data from smart plungers to optimize lift cycles

    E-Print Network [OSTI]

    Chava, Gopi Krishna

    2009-05-15T23:59:59.000Z

    additional data available in the form of pressure and temperature from new technology like smart plunger. The model is based on fundamental principles of mass conservation and pressure balance, and uses the smart plunger data as input. The implementation...

  18. Rev: 29 March 2011 Aerial Lift Operator Job Performance Measure (TQ-AERIAL-P)

    E-Print Network [OSTI]

    Ohta, Shigemi

    . Approximate total observation hours: ______. Administer the JPM. Equipment Qualifications Aerial Platform Manufacturer: _______________________________ Model: _____________ Maximum Capacity: ______ Note: Qualification successfully demonstrated. Type Propulsion Elevating Mechanism Qualification CodesANSI/SIA Standard Aerial

  19. Empirical Modeling of a Rolling-Piston Compressor Heat Pump for Predictive Control in Low-Lift Cooling

    E-Print Network [OSTI]

    Gayeski, Nicholas

    Inverter-driven variable-capacity air conditioners, heat pumps, and chillers can provide energy-efficient cooling, particularly at part-load capacity. Varying the capacity of vapor compression systems enables operation at ...

  20. Well Integrity Diagnostics for Sustained Casing Pressure and Faulty Gas-Lift Valve Based on Pressure Transient Modeling

    E-Print Network [OSTI]

    Rocha-Valadez, Tony

    2014-10-20T23:59:59.000Z

    A problem frequently present in the oil and gas industry is the difficulty of measuring well integrity parameters; particularly, for high-pressure high-temperature wells. For this reason, many relevant parameters, indicators of the integrity...

  1. Two-dimensional, subsonic, flowfield analysis for arbitrary boundaries with lifting bodies

    E-Print Network [OSTI]

    Noack, Ralph Wayne

    1981-01-01T23:59:59.000Z

    and negative circula- tion strengths, respect1vely INTRODUCTION The use of a wind tunnel to measure the aerodynam1c properties of a two-d1mens 1onal airfoil yields results which differ from those ob- ta1ned 1n free air. For inviscid flow these d1fferences... in that the freestream or the "1nf1nity" condit1ons must be determ1ned in close proxim1ty to the airfoil (Figure I). Since it 1s desirable to test at Reynolds numbers approximat1ng f11ght conditions, the trend has been to increase the model size. For a f1xed wind...

  2. 3D Rigid Body Impact Burial Prediction Model

    E-Print Network [OSTI]

    Chu, Peter C.

    -fixed coordinate (E-coordinate) · cylinder's main-axis following coordinate (M-coordinate) · hydrodynamic force-Coordiante Hydrodynamic forces (drag and lift) are easily calculated. #12;Moment of Momentum Equations #12;Interfacial;Experiment · Hydrodynamic Model Development · Behavior of Falling Cylinder in Water Column (Chaotic

  3. LANL access restrictions lifted

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your Home as ReadyAppointedKyungmin Ham, Ph.D.access restrictions

  4. Chapter 15 - PERSONNEL LIFTING

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C oCNMSStaffCeriumfor the 20122-1 November4.05.0 -

  5. InGaP/GaAs Inverted Dual Junction Solar Cells For CPV Applications Using Metal-Backed Epitaxial Lift-Off

    SciTech Connect (OSTI)

    Bauhuis, Gerard J.; Mulder, Peter; Haverkamp, Erik J.; Schermer, John J. [Applied Materials Science, IMM, Radboud University Nijmegen, Toernooiveld 1, 625 ED Nijmegen (Netherlands); Nash, Lee J.; Fulgoni, Dominic J. F.; Ballard, Ian M.; Duggan, Geoffrey [Circadian Solar Ltd, One Sovereign Court, Sir William Lyons Road, Coventry, CV4 7EZ (United Kingdom)

    2010-10-14T23:59:59.000Z

    The epitaxial lift-off (ELO) technique has been combined with inverted III-V PV cell epitaxial growth with the aim of employing thin film PV cells in HCPV systems. In a stepwise approach to the realization of an inverted triple junction on a MELO platform we have first grown a GaAs single junction PV cell to establish the basic layer release process and cell processing steps followed by the growth, fabrication and test of an inverted InGaP/GaAs dual junction structure.

  6. Laser lift-off technique for freestanding GaN substrate using an In droplet formed by thermal decomposition of GaInN and its application to light-emitting diodes

    SciTech Connect (OSTI)

    Iida, Daisuke, E-mail: dft0tfi16@meijo-u.ac.jp; Kawai, Syunsuke; Ema, Nobuaki; Tsuchiya, Takayoshi; Iwaya, Motoaki; Takeuchi, Tetsuya; Kamiyama, Satoshi [Faculty of Science and Technology, Meijo University, Nagoya 468-8502 (Japan); Akasaki, Isamu [Faculty of Science and Technology, Meijo University, Nagoya 468-8502 (Japan); Akasaki Research Center, Nagoya University, Nagoya 464-8603 (Japan)

    2014-08-18T23:59:59.000Z

    We developed a laser lift-off technique for a freestanding GaN substrate using an In droplet formed by thermal decomposition of GaInN. A combination of an In droplet formed by thermal decomposition of GaInN during growth and a pulsed second-harmonic neodymium-doped yttrium aluminum garnet laser (??=?532?nm) realized the lift-off GaN substrate. After laser lift-off of the GaN substrate, it was used to achieve 380?nm ultraviolet light-emitting diodes with light output enhanced 1.7-fold. In this way, the light extraction can be improved by removing the GaN substrate.

  7. Three-Dimensional Hydrodynamic Model for Prediction of Falling Cylinder Through Water Column

    E-Print Network [OSTI]

    Chu, Peter C.

    1 1 Three-Dimensional Hydrodynamic Model for Prediction of Falling Cylinder Through Water Column-coordinate), cylinder's main-axis following coordinate (M-coordinate), and hydrodynamic force following coordinate (F-coordinate system. The hydrodynamic forces (such as the drag and lift forces) and their moments are easily computed

  8. Sub-Lithographic Patterning Technology for Nanowire Model Catalysts and DNA Label-Free Hybridization Detection

    E-Print Network [OSTI]

    Bokor, Jeffrey

    Sub-Lithographic Patterning Technology for Nanowire Model Catalysts and DNA Label were used as a mold in nanoimprint lithography and lift-off patterning of sub-30nm platinum nanowires a label-free tool for DNA hybridization detection based on measuring capacitance changes in the gap

  9. 20 Int. J. Engineering Systems Modelling and Simulation, Vol. 1, No. 1, 2008 Copyright 2008 Inderscience Enterprises Ltd.

    E-Print Network [OSTI]

    Wang, Lian-Ping

    on technology developments including Downhole Testing, Artificial Lift, Flow Control, and Completion Accessories20 Int. J. Engineering Systems Modelling and Simulation, Vol. 1, No. 1, 2008 Copyright © 2008 simulation of viscous flow in a wavy pipe using the lattice Boltzmann approach', Int. J. Engineering Systems

  10. Attrition and abrasion models for oil shale process modeling

    SciTech Connect (OSTI)

    Aldis, D.F.

    1991-10-25T23:59:59.000Z

    As oil shale is processed, fine particles, much smaller than the original shale are created. This process is called attrition or more accurately abrasion. In this paper, models of abrasion are presented for oil shale being processed in several unit operations. Two of these unit operations, a fluidized bed and a lift pipe are used in the Lawrence Livermore National Laboratory Hot-Recycle-Solid (HRS) process being developed for the above ground processing of oil shale. In two reports, studies were conducted on the attrition of oil shale in unit operations which are used in the HRS process. Carley reported results for attrition in a lift pipe for oil shale which had been pre-processed either by retorting or by retorting then burning. The second paper, by Taylor and Beavers, reported results for a fluidized bed processing of oil shale. Taylor and Beavers studied raw, retorted, and shale which had been retorted and then burned. In this paper, empirical models are derived, from the experimental studies conducted on oil shale for the process occurring in the HRS process. The derived models are presented along with comparisons with experimental results.

  11. Numerical simulation of the flow field and the lifting forces in the bristle tip region of a brush seal

    E-Print Network [OSTI]

    Phung, Anh Ngoc

    1995-01-01T23:59:59.000Z

    The complicated fluid flow at the tip of a typical bristle within a brush seal is simulated. A numerical model is developed to compute the three-dimensional details in the bristle tip region. Experimental and numerical leakage data are correlated...

  12. Enhancement of current collection in epitaxial lift-off InAs/GaAs quantum dot thin film solar cell and concentrated photovoltaic study

    SciTech Connect (OSTI)

    Sogabe, Tomah, E-mail: sogabe@mbe.rcast.u-tokyo.ac.jp; Shoji, Yasushi; Tamayo, Efrain; Okada, Yoshitaka [Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8504 (Japan); Mulder, Peter; Schermer, John [Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen (Netherlands)

    2014-09-15T23:59:59.000Z

    We report the fabrication of a thin film InAs/GaAs quantum dot solar cell (QD cell) by applying epitaxial lift-off (ELO) approach to the GaAs substrate. We confirmed significant current collection enhancement (?0.91?mA/cm{sup 2}) in the ELO-InAs QD cell within the wavelength range of 700?nm–900?nm when compared to the ELO-GaAs control cell. This is almost six times of the sub-GaAs bandgap current collection (?0.16?mA/cm{sup 2}) from the wavelength range of 900?nm and beyond, we also confirmed the ELO induced resonance cavity effect was able to increase the solar cell efficiency by increasing both the short circuit current and open voltage. The electric field intensity of the resonance cavity formed in the ELO film between the Au back reflector and the GaAs front contact layer was analyzed in detail by finite-differential time-domain (FDTD) simulation. We found that the calculated current collection enhancement within the wavelength range of 700?nm–900?nm was strongly influenced by the size and shape of InAs QD. In addition, we performed concentrated light photovoltaic study and analyzed the effect of intermediate states on the open voltage under varied concentrated light intensity for the ELO-InAs QD cell.

  13. Better Nonlinear Models from Noisy Data: Attractors with Maximum Likelihood

    E-Print Network [OSTI]

    Patrick E. McSharry; Leonard A. Smith

    1999-11-30T23:59:59.000Z

    A new approach to nonlinear modelling is presented which, by incorporating the global behaviour of the model, lifts shortcomings of both least squares and total least squares parameter estimates. Although ubiquitous in practice, a least squares approach is fundamentally flawed in that it assumes independent, normally distributed (IND) forecast errors: nonlinear models will not yield IND errors even if the noise is IND. A new cost function is obtained via the maximum likelihood principle; superior results are illustrated both for small data sets and infinitely long data streams.

  14. A unified approach to asphaltene precipitation: Laboratory measurement and modeling

    SciTech Connect (OSTI)

    MacMillan, D.J.; Tackett, J.E. Jr.; Jessee, M.A.; Monger-McClure, T.G.

    1995-11-01T23:59:59.000Z

    A unified approach to evaluating asphaltene precipitation based on laboratory measurement and modeling is presented. This approach used an organic deposition cell for measuring asphaltene drop out onset conditions. Asphaltene precipitation was detected by changes in optical fluorescence, electrical conductance, and visual observation. A series of experiments measured the effects of changing pressure, temperature and composition on asphaltene precipitation. A fully-compositional V-L-S mathematical model completed the analysis by matching the experimental results. The model was then used to forecast asphaltene precipitation under a variety of production scenarios including response to gas-lift operations, and to evaluate the possible location of a tar-mat.

  15. Hoisting & Rigging Lift Plan

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

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

  16. IN-FORUM http://www.in-forum.com/articles/index.cfm?id=98107§ion=Opinion 1 of 2 7/20/2005 2:44 PM

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    Archive Company Site Ethics Code E-Mail Index InfoGuide Newspapers in Education Public Notices Resources) as if it is the gospel truth. Pimentel's studies have been routinely discredited by officials from the Departments

  17. Near wake models for the hydrodynamics forces on a cylinder in periodic flow

    SciTech Connect (OSTI)

    Sibetheros, I.A.; Medeiros, E.F. [Univ. of Texas, Austin, TX (United States); Miksad, R.W. [Univ. of Virginia, Charlottesville, VA (United States). School of Engineering and Applied Science

    1995-12-31T23:59:59.000Z

    The relationship between hydrodynamic forces and the reversing near wake flow field around a cylinder in oscillatory farfield flow was experimentally investigated. A computer controlled pressurized water tunnel was employed to generate a planar harmonic flow past a stationary cylinder of Keulegan-Carpenter numbers (KC) in the inertia-drag flow regime and at subcritical Reynolds numbers (Re). Streamwise (u-) and cross-stream (v-) velocities near the cylinder and u-velocities at the far flow field were measured using a three-component LDV system. Inline and lift forces on the cylinder were measured using a very sensitive six-component load cell. A modal phase averaging technique was applied to the velocity data to estimate averaged velocity cycles that distinguish between positive and negative flow modes. A positive (negative) flow mode signifies dominant vortex shedding and motion occurring from the top (bottom) of the cylinder, respectively. The force measurements were likewise phase averaged into positive and negative mode force cycles. u- and v-velocity profiles for KC = 10, 15, and 20, based on modal phase averages of velocity measurements, were used to estimate averaged wake u- and v-velocities. These wake velocities were used in the place of the undisturbed farfield u-velocity as inputs to Morison`s equation for the inline force, and to the quasi-steady model for the lift force. It was found that, for KC = 15 a significant improvement in the prediction of lift force was achieved using the wake-based lift force model, whereas a smaller improvement in the inline force prediction was obtained from the wake-based Morison`s equation.

  18. Model building with the non-supersymmetric heterotic SO(16)xSO(16) string

    E-Print Network [OSTI]

    Stefan Groot Nibbelink

    2015-02-12T23:59:59.000Z

    In this talk we review recent investigations of the non-supersymmetric heterotic SO(16)xSO(16) string on orbifolds and smooth Calabi-Yaus. Using such supersymmetry preserving backgrounds allows one to re-employ commonly known model building techniques. We will argue that tachyons do not appear on smooth Calabi-Yaus to leading order in alpha' and g_s. Twisted tachyons may arise on singular orbifolds, where some of these approximations break down. However, they get lifted in full blow-up. Finally, we show that model searches is viable by identifying over 12,000 of SM-like models on various orbifold geometries.

  19. Model building with the non-supersymmetric heterotic SO(16)xSO(16) string

    E-Print Network [OSTI]

    Nibbelink, Stefan Groot

    2015-01-01T23:59:59.000Z

    In this talk we review recent investigations of the non-supersymmetric heterotic SO(16)xSO(16) string on orbifolds and smooth Calabi-Yaus. Using such supersymmetry preserving backgrounds allows one to re-employ commonly known model building techniques. We will argue that tachyons do not appear on smooth Calabi-Yaus to leading order in alpha' and g_s. Twisted tachyons may arise on singular orbifolds, where some of these approximations break down. However, they get lifted in full blow-up. Finally, we show that model searches is viable by identifying over 12,000 of SM-like models on various orbifold geometries.

  20. Innovative approach to modeling accident response of Gravel Gerties

    SciTech Connect (OSTI)

    Kramer, M.; McClure, P.; Sullivan, H.

    1997-08-01T23:59:59.000Z

    Recent safety analyses at nuclear explosive facilities have renewed interest in the accident phenomenology associated with explosions in nuclear explosive cells, which are commonly referred to as {open_quotes}Gravel Gerties.{close_quotes} The cells are used for the assembly and disassembly of nuclear explosives and are located in the Device Assembly Facility (DAF) at the Nevada Test Site (NTS) and at the Pantex facility. The cells are designed to mitigate the release of special nuclear material to the environment in the event of a detonation of high explosive within the Gravel Gertie. Although there are some subtle differences between the cells of DAF and Pantex, their general design, geometry, and configuration are similar. The cells consist of a round room approximately 10.4 m in diameter and 5.2 m high enclosed by 0.3-m-thick concrete. Each cell has a wire-rope cantenary roof overlain with gravel. The gravel is approximately 6.9 m deep at the center of the roof and decreases toward the outer edge of the cell. The cell is connected to a corridor and subsequent rooms through an interlocking blast door. In the event of a accidental explosion involving significant amounts of high explosive, the roof structure is lifted by the force of the explosion, the supporting cables break, the gravel is lifted by the blast (resulting in rapid venting of the cell), and the gravel roof collapses, filling the cell. The lifting and subsequent collapse of the gravel, which acts much like a piston, is very challenging to model.

  1. Stochastic model for aerodynamic force dynamics on wind turbine blades in unsteady wind inflow

    E-Print Network [OSTI]

    Luhur, Muhammad Ramzan; Kühn, Martin; Wächter, Matthias

    2015-01-01T23:59:59.000Z

    The paper presents a stochastic approach to estimate the aerodynamic forces with local dynamics on wind turbine blades in unsteady wind inflow. This is done by integrating a stochastic model of lift and drag dynamics for an airfoil into the aerodynamic simulation software AeroDyn. The model is added as an alternative to the static table lookup approach in blade element momentum (BEM) wake model used by AeroDyn. The stochastic forces are obtained for a rotor blade element using full field turbulence simulated wind data input and compared with the classical BEM and dynamic stall models for identical conditions. The comparison shows that the stochastic model generates additional extended dynamic response in terms of local force fluctuations. Further, the comparison of statistics between the classical BEM, dynamic stall and stochastic models' results in terms of their increment probability density functions gives consistent results.

  2. Physical Building Information Modeling for Solar Building Design and Simulation- Annual Report 2012

    E-Print Network [OSTI]

    Yan, W.; Haberl, J.; Clayton, M.; Jeong, W.; Kim, J.; Kota, S.; Alcocer, J.; Dixit, M.

    2012-01-01T23:59:59.000Z

    . 6 Figure 6. Radiance rendering of the wall. c) BIM to BiPV We developed a Building Integrated Photovoltaic (BiPV) prototype in a BIM platform (Autodesk Revit) to calculate solar position and determine the amount of solar insolation from given... as the weather file. ? The room is lifted up from the earth, so the floor slab is not attached to the ground. ? This one room model consists of a roof, a floor, and four walls. ? No windows and doors are installed. ? All building components are made up of a...

  3. Technical documentation of HGSYSTEM/UF{sub 6} model

    SciTech Connect (OSTI)

    Hanna, S.R.; Chang, J.C.; Zhang, J.X. [Earth Technology Corp., Concord, MA (United States)

    1996-01-01T23:59:59.000Z

    MMES has been directed to upgrade the safety analyses for the gaseous diffusion plants at Paducah KY and Piketon OH. These will require assessment of consequences of accidental releases of UF{sub 6} to the atmosphere at these plants. The HGSYSTEM model has been chosen as the basis for evaluating UF{sub 6} releases; it includes dispersion algorithms for dense gases and treats the chemistry and thermodynamics of HF, a major product of the reaction of UF{sub 6} with water vapor in air. Objective of this project was to incorporate additional capability into HGSYSTEM: UF{sub 6} chemistry and thermodynamics, plume lift-off algorithms, and wet and dry deposition. The HGSYSTEM modules are discussed. The hybrid HGSYSTEM/UF{sub 6} model has been evaluated in three ways.

  4. Distributed Averaging Via Lifted Markov Chains

    E-Print Network [OSTI]

    Jung, Kyomin

    Motivated by applications of distributed linear estimation, distributed control, and distributed optimization, we consider the question of designing linear iterative algorithms for computing the average of numbers in a ...

  5. ight the blues with behaviors that lift

    E-Print Network [OSTI]

    Kim, Duck O.

    a problem from growing into a crisis. If you're hesitant, remember that professional counselors help you't view smoking pot (marijuana) as "normal" or a "rite of passage." When teens are using pot while

  6. ight the blues with behaviors that lift

    E-Print Network [OSTI]

    Alpay, S. Pamir

    a problem from growing into a crisis. If you're hesitant, remember that professional counselors help you-679-2877 or 800-852-4392 #12;Y our teen may tell you "everybody's doing it," but don't view smoking pot (marijuana

  7. OpenEI Community - Artificial Lift Systems

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcernsCompany Oil and GasOff the GridHome All

  8. Artificial Lift Technology | GE Global Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWPAlumni AlumniFederal FacilityAprilAreAroundArthur P.

  9. Artificial Lift Systems | OpenEI Community

    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 andsoftware andSolarResearch

  10. Stochastic modeling of random roughness in shock scattering problems: theory and simulations

    SciTech Connect (OSTI)

    Lin, Guang; Su, Chau-Hsing; Karniadakis, George E.

    2008-08-01T23:59:59.000Z

    Random rougness is omnipresent in engineering applications and may often affect performance in unexpected way. Here, we employ synergistically stochastic simulations and second-order stochastic perturbation analysis to study supersonic flow past a wedge with random rough surface. The roughness (of length $d$) starting at the wedge apex is modeled as stochastic process (with zero mean and correlation length $A$) obtained from a new stochastic differential equation. A multi-element probabilistic collocation method (ME-PCM) based on {\\em sparse grids} is employed to solve the stochastic Euler equations while a WENO scheme is used to discretize the equations in two spatial dimensions. The perturbation analysis is used to verify the stochastic simulations and to provide insight for small values of $A$, where stochastic simulations become prohibitively expensive. % We show that the random roughness enhances the lift and drag forces on the wedge beyond the rough region, and this enhancement is proportional to $(d/A)^2$. The effects become more pronounced as the Mach number increases. These results can be used in designing smart rough skins for airfoils for maxiumum lift enhancement at a minimum drag penalty.

  11. Nonlocal extension of the dispersive-optical-model to describe data below the Fermi energy

    E-Print Network [OSTI]

    Dickhoff, W H; Waldecker, S J; Charity, R J; Sobotka, L G

    2010-01-01T23:59:59.000Z

    Present applications of the dispersive-optical-model analysis are restricted by the use of a local but energy-dependent version of the generalized Hartree-Fock potential. This restriction is lifted by the introduction of a corresponding nonlocal potential without explicit energy dependence. Such a strategy allows for a complete determination of the nucleon propagator below the Fermi energy with access to the expectation value of one-body operators (like the charge density), the one-body density matrix with associated natural orbits, and complete spectral functions for removal strength. The present formulation of the dispersive optical model (DOM) therefore allows the use of elastic electron-scattering data in determining its parameters. Application to ${}^{40}$Ca demonstrates that a fit to the charge radius leads to too much charge near the origin using the conventional assumptions of the functional form of the DOM. A corresponding incomplete description of high-momentum components is identified, suggesting t...

  12. Time integration for diffuse interface models for two-phase flow

    SciTech Connect (OSTI)

    Aland, Sebastian, E-mail: sebastian.aland@tu-dresden.de

    2014-04-01T23:59:59.000Z

    We propose a variant of the ?-scheme for diffuse interface models for two-phase flow, together with three new linearization techniques for the surface tension. These involve either additional stabilizing force terms, or a fully implicit coupling of the Navier–Stokes and Cahn–Hilliard equation. In the common case that the equations for interface and flow are coupled explicitly, we find a time step restriction which is very different to other two-phase flow models and in particular is independent of the grid size. We also show that the proposed stabilization techniques can lift this time step restriction. Even more pronounced is the performance of the proposed fully implicit scheme which is stable for arbitrarily large time steps. We demonstrate in a Taylor-flow application that this superior coupling between flow and interface equation can decrease the computation time by several orders of magnitude.

  13. Improving the transition modelling in hidden Markov models for ECG segmentation

    E-Print Network [OSTI]

    Verleysen, Michel

    to important variations. Therefore, we propose to use two methods which attempt to lift the limitations of both F.R.I.A. grant. ESANN'2009 proceedings, European Symposium on Artificial Neural Networks - Advances

  14. Breaking the symmetries of the bulb model in two-dimensional self-induced supernova neutrino flavor conversions

    E-Print Network [OSTI]

    Mirizzi, Alessandro

    2015-01-01T23:59:59.000Z

    Self-induced flavor conversions of supernova (SN) neutrinos have been characterized in the spherically symmetric "bulb model", reducing the neutrino evolution to a one dimensional problem along a radial direction. We lift this assumption, presenting a two-dimensional model where neutrinos are launched from a spherical neutrino-sphere with many zenithal angles and two azimuthal angles. We also assume that self-induced conversions are not suppressed by large matter effects. In this situation we find that self-interacting neutrinos spontaneously break axial and spherical symmetries. As a result the flavor content and the lepton number of the neutrino gas would acquire seizable direction-dependent variations, breaking the coherent behavior found in the spherically symmetric case. This finding would suggest that the previous results of the self-induced flavor evolution obtained in one-dimensional models should be critically re-examined.

  15. Detailed comparative study and a mechanistic model of resuspension of spherical particles from rough and smooth surfaces

    E-Print Network [OSTI]

    Shnapp, Ron

    2014-01-01T23:59:59.000Z

    Resuspension of solid particles by a tornado-like vortex from surfaces of different roughness is studied using a three-dimensional particle tracking velocimetry (3D-PTV) method. By utilizing the three-dimensional information on particle positions, velocities and accelerations before, during and after the resuspension (lift-off) event, we demonstrate that the resuspension efficiency is significantly higher from the rough surface, and propose a mechanistic model of this peculiar effect. The results indicate that for all Reynolds numbers tested, the resuspension rate, as well as particle velocities and accelerations, are higher over the rough surface, as compared to the smooth counterpart. The results and the model can help to improve modeling and analysis of resuspension rates in engineering and environmental applications.

  16. abelian two-higgs model: Topics by E-print Network

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

    the quadratic corrections to scalar masses and lifting the mass of the lightest Higgs boson. A strong source of CP violation emerges from the scalar potential. The cutoff...

  17. An integrated model supporting histological and biometric responses as predictive biomarkers of fish health status

    SciTech Connect (OSTI)

    Torres Junior, Audalio Rebelo [Department of Oceanography and Limnology, Federal University of Maranhão (Brazil); Sousa, Débora Batista Pinheiro [Postgraduate Program of Aquatic Resources and Fishery (PPGRAP/UEMA), State University of Maranhão (Brazil); Neta, Raimunda Nonata Fortes Carvalho [Department of Chemistry and Biology, State University of Maranhão (Brazil)

    2014-10-06T23:59:59.000Z

    In this work, an experimental system of histological (branchial lesions) biomarkers and biometric data in catfish (Sciades herzbergii) was modeled. The fish were sampled along known pollution areas (S1) and from environmental protect areas (S2) in São Marcos' Bay, Brazil. Gills were fixed in 10% formalin and usual histological techniques were used in the first gill arch right. The lesions were observed by light microscopy. There were no histopathological changes in animals captured at reference site (S1). However, in the catfish collected in the potentially contaminated area (S2) was observed several branchial lesions, such as lifting of the lamellar epithelium, fusion of some secondary lamellae, hypertrophy of epithelial cells and lamellar aneurysm. The analysis using the biometric data showed significant differences, being highest in fish analyzed in the reference area. This approach revealed spatial differences related with biometric patterns and morphological modifications of catfish.

  18. Queuing models System dynamics models

    E-Print Network [OSTI]

    Glushko, Robert J.

    models Value chain models Business Model / Organizational Perspective Process Perspective Information#12;#12;#12;#12;Queuing models System dynamics models #12;#12;#12;#12;Blueprint or touchpoint

  19. Modeling the Mobile Oil Recovery Problem as a Multiobjective ...

    E-Print Network [OSTI]

    2008-06-30T23:59:59.000Z

    of the oil wells are pumped using artificial lift systems. One such ... system. The unit starts its tour at the depot, then it pumps several wells before returning to the

  20. Discrete-Time Block Models for Transmission Line Channels: Static and Doubly Selective Cases

    E-Print Network [OSTI]

    Galli, Stefano

    2011-01-01T23:59:59.000Z

    Most methodologies for modeling Transmission Line (TL) based channels define the input-output relationship in the frequency domain (FD) and handle the TL resorting to a two-port network (2PN) formalism. These techniques have not yet been formally mapped into a discrete-time (DT) block model, which is useful to simulate and estimate the channel response as well as to design optimal precoding strategies. TL methods also fall short when they are applied to Time Varying (TV) systems, such as the power line channel. The objective of this paper is to establish if and how one can introduce a DT block model for the Power Line Channel. We prove that it is possible to use Lifting and Trailing Zeros (L&TZ) techniques to derive a DT block model that maps the TL-based input-output description directly in the time domain (TD) block channel model. More specifically, we find an interesting relationship between the elements of an ABCD matrix, defined in the FD, and filtering kernels that allow an elegant representation of...

  1. HGSYSTEMUF6. Model for Simulating Dispersion due to Atmospheric Release of UF6

    SciTech Connect (OSTI)

    Hanna, G [George Mason University, (United States); Chang, J.C. [Earthtech, Inc., (United States); Zhang, J.X. [BlazeTech Corporation, (United States); Bloom, S.G. [Lockheed Martin Energy Systems, Oak Ridge, TN (United States); Goode, W.D. Jr [Bechtel Jacobs Company, Oak Ridge, TN (United States); Lombardi, D.A. [JBF Associates, (United States); Yambert, M.W. [LMERC, Oak Ridge, TN (United States)

    1998-08-01T23:59:59.000Z

    HGSYSTEMUF6 is a suite of models designed for use in estimating consequences associated with accidental, atmospheric release of Uranium Hexafluoride (UF6) and its reaction products, namely Hydrogen Fluoride (HF), and other non-reactive contaminants which are either negatively, neutrally, or positively buoyant. It is based on HGSYSTEM Version 3.0 of Shell Research LTD., and contains specific algorithms for the treatment of UF6 chemistry and thermodynamics. HGSYSTEMUF6 contains algorithms for the treatment of dense gases, dry and wet deposition, effects due to the presence of buildings (canyon and wake), plume lift-off, and the effects of complex terrain. The models components of the suite include (1) AEROPLUME/RK, used to model near-field dispersion from pressurized two-phase jet releases of UF6 and its reaction products, (2) HEGADAS/UF6 for simulating dense, ground based release of UF6, (3) PGPLUME for simulation of passive, neutrally buoyant plumes (4) UF6Mixer for modeling warm, potentially reactive, ground-level releases of UF6 from buildings, and (5) WAKE, used to model elevated and ground-level releases into building wake cavities of non-reactive plumes that are either neutrally or positively buoyant.

  2. A TRIANGULATED CATEGORY WITHOUT MODELS FERNANDO MURO

    E-Print Network [OSTI]

    ;; )); we describe conditions on r, or rather on a lift of r to the translation cohomol- ogy group H 3 (A generally, the tri- angulated homotopy category of a stable S-category S, in the sense of [TV04, 7

  3. Lifecycle Model

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

    1997-05-21T23:59:59.000Z

    This chapter describes the lifecycle model used for the Departmental software engineering methodology.

  4. aktivnykh zon rossijskikh: Topics by E-print Network

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

    balance and torque. Computer simulated models Meeden, Lisa A. 3 Duurzaamheid in de lift: traplopen Naar verluid gebruikt de gemiddelde lift in Nederland zo'n 4.800 Biology and...

  5. aktivnykh zon yadernykh: Topics by E-print Network

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

    balance and torque. Computer simulated models Meeden, Lisa A. 3 Duurzaamheid in de lift: traplopen Naar verluid gebruikt de gemiddelde lift in Nederland zo'n 4.800 Biology and...

  6. Accounting for Finite-Size Effects in Simulations of Disperse Particle-Laden Flows

    E-Print Network [OSTI]

    Mahesh, Krishnan

    flowfield: a) gravitational settling, b) fluidization by a gaseous jet, and c) fluidization by lift phase is modeled through drag and lift laws [Crowe et al. (1998)]. Several simulations of particle

  7. Heavy lift crane/derrick barge stability analysis

    E-Print Network [OSTI]

    Loesch, Robert Morrison

    1988-01-01T23:59:59.000Z

    "weather windows" exist and where offshore structure owners and their designers are installing heavier modular packages. It is the U. S. Coast Guard's responsibility to ensure the safety of all personnel operating aboard U. S. flag vessels. Current I'. S.../A = Vessel Sway/vvave amplitdue SWL/A = Load Sway/wave amplitude HL/A = Load Heave/wave amplitude SUL/A = Load Surge/wave amplitude 35 inch diameter), but it does show that water being shipped over the stern is a very important safety problem. Vessel...

  8. Evaluation of liquid lift approach to dual gradient

    E-Print Network [OSTI]

    Okafor, Ugochukwu Nnamdi

    2009-05-15T23:59:59.000Z

    ............................................... 4 2.2 Dual Gradient Drilling Method.............................................. 5 2.3 Methods of Achieving Dual Gradient Drilling ...................... 9 2.3.1 Subsea Mudlift Drilling... ................................................... 9 2.5 Schematic diagram of a modified subsea mudlift system .......................... 11 2.6 Hollow glass-spheres dual gradient drilling system................................... 13 2.7 A typical offshore drilling rig modified...

  9. Evaluation of liquid lift approach to dual gradient drilling

    E-Print Network [OSTI]

    Okafor, Ugochukwu Nnamdi

    2008-10-10T23:59:59.000Z

    ............................................... 4 2.2 Dual Gradient Drilling Method.............................................. 5 2.3 Methods of Achieving Dual Gradient Drilling ...................... 9 2.3.1 Subsea Mudlift Drilling... ................................................... 9 2.5 Schematic diagram of a modified subsea mudlift system .......................... 11 2.6 Hollow glass-spheres dual gradient drilling system................................... 13 2.7 A typical offshore drilling rig modified...

  10. Propeller blade stress estimates using lifting line theory

    E-Print Network [OSTI]

    Epps, Brenden P.

    OpenProp, an open-source computational tool for the design and analysis of propellers and horizontal-axis turbines, is extended to provide estimates of normal stresses in the blades for both on- and off-design operating ...

  11. Axiomatic design of a manually powered wheelchair lift mechanism

    E-Print Network [OSTI]

    DiGenova, Kevin (Kevin J.)

    2007-01-01T23:59:59.000Z

    The objective of this research is to create an inexpensive mechanism which gives wheelchair users the ability to adjust the vertical height of their chair while seated. There are currently 1.5 million manual wheelchair ...

  12. High-Temperature-High-Volume Lifting for Enhanced Geothermal...

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

    Turnquist GE Global Research High Temperature Tools and Sensors, Down-hole Pumps and Drilling May 19, 2010 This presentation does not contain any proprietary confidential, or...

  13. artificial lift system: Topics by E-print Network

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

    263 Effective Temperature in an Interacting Vertex System: Theory and Experiment on Artificial Spin Ice Computer Technologies and Information Sciences Websites Summary:...

  14. Branch-and-Lift Algorithm for Global Optimal Control

    E-Print Network [OSTI]

    2013-07-23T23:59:59.000Z

    example in controlling a car or a robot in the presence of obstacles, a local solver will typically fail to determine whether passing a given obstacle on the right or ...

  15. Solving Lift-and-Project Relaxations of Binary Integer Programs

    E-Print Network [OSTI]

    2004-06-07T23:59:59.000Z

    Jun 7, 2004 ... issues is how to obtain a “good” description of the convex hull of integer solutions

  16. Rod Pumping, Gas Well Dewatering and Gas Lift

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

    treat the well. Another item is a downhole sucker rod pump that sets new efficiency standards. Finally, there is a diverter downhole separator, for use in wells where one...

  17. A Matrix-lifting Semidefinite Relaxation for the Quadratic Assignment ...

    E-Print Network [OSTI]

    Yichuan Ding

    2006-10-27T23:59:59.000Z

    Oct 27, 2006 ... Abstract: The quadratic assignment problem (\\QAP) is arguably one of the hardest ... Category 1: Linear, Cone and Semidefinite Programming ...

  18. Experimental analysis of the mechanics of reverse circulation air lift

    E-Print Network [OSTI]

    Zeineddine, Talal Ibrahim

    1980-01-01T23:59:59.000Z

    . In these sites, 72, 90, 96 and 120-inch diameter holes were drilled. Also, with the advent of oil shale extraction and coal gasifica- tion, additional medium to large diameter shafts will be drilled. In order to achieve the United States energy self...

  19. Abdominal vacuum lift as an aid to diagnosing abdominal adhesions

    E-Print Network [OSTI]

    Strauss, Julius (Julius Y.)

    2006-01-01T23:59:59.000Z

    The internal organs are designed to move freely and slide over one another during normal body movement. The abdominal organs, however, have a tendency to adhere to the abdominal cavity (peritoneum) and other abdominal ...

  20. On the difference between bridge rules and lifting axioms

    E-Print Network [OSTI]

    Bouquet, Paolo

    (Italy) 2ITC-IRST ­ Istituto per la Ricerca Scientifica e Tecnologica Via Sommarive ­ 38050 Trento (Italy) bouquet@cs.unitn.it serafini@itc.it Abstract. In a previous paper, we proposed a first formal 1 is that holds in the context 2, from the point of view of 1. Similar interpretation can be given

  1. New Crystal Structures Lift Fog around Protein Folding

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

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

  2. Lifting system and apparatus for constructing wind turbine towers

    DOE Patents [OSTI]

    Livingston, Tracy; Schrader, Terry; Goldhardt, James; Lott, James

    2011-02-01T23:59:59.000Z

    The disclosed invention is utilized for mounting a wind turbine and blade assembly on the upper end of a wind turbine tower. The invention generally includes a frame or truss that is pivotally secured to the top bay assembly of the tower. A transverse beam is connected to the frame or truss and extends fore of the tower when the frame or truss is in a first position and generally above the tower when in a second position. When in the first position, a wind turbine or blade assembly can be hoisted to the top of the tower. The wind turbine or blade assembly is then moved into position for mounting to the tower as the frame or truss is pivoted to a second position. When the turbine and blade assembly are secured to the tower, the frame or truss is disconnected from the tower and lowered to the ground.

  3. LIFTS OF CONVEX SETS AND CONE FACTORIZATIONS 1 ...

    E-Print Network [OSTI]

    2011-11-13T23:59:59.000Z

    Nov 13, 2011 ... When the cones live in a family, our results lead to the definition ...... Systems, Massachusetts Institute of Technology, 77 Massachusetts.

  4. New Crystal Structures Lift Fog around Protein Folding

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011R - 445 CU - 2 3New Crystal Structures

  5. New Crystal Structures Lift Fog around Protein Folding

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011R - 445 CU - 2 3New Crystal

  6. New Crystal Structures Lift Fog around Protein Folding

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011R - 445 CU - 2 3New CrystalNew Crystal

  7. New Crystal Structures Lift Fog around Protein Folding

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011R - 445 CU - 2 3New CrystalNew

  8. OpenEI Community - Artificial Lift Systems Market

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcernsCompany Oil and GasOff the GridHome All

  9. High-Temperature-High-Volume Lifting For Enhanced Geothermal Systems

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtel Jump to: navigation, search Name:HidraliaWellsDownhole Tools Jump

  10. High-Temperature-High-Volume Lifting for Enhanced Geothermal Systems |

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

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

  11. Artificial Lift Systems Market | OpenEI Community

    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 andsoftware andSolarResearch Corporation

  12. Ventilation Model

    SciTech Connect (OSTI)

    H. Yang

    1999-11-04T23:59:59.000Z

    The purpose of this analysis and model report (AMR) for the Ventilation Model is to analyze the effects of pre-closure continuous ventilation in the Engineered Barrier System (EBS) emplacement drifts and provide heat removal data to support EBS design. It will also provide input data (initial conditions, and time varying boundary conditions) for the EBS post-closure performance assessment and the EBS Water Distribution and Removal Process Model. The objective of the analysis is to develop, describe, and apply calculation methods and models that can be used to predict thermal conditions within emplacement drifts under forced ventilation during the pre-closure period. The scope of this analysis includes: (1) Provide a general description of effects and heat transfer process of emplacement drift ventilation. (2) Develop a modeling approach to simulate the impacts of pre-closure ventilation on the thermal conditions in emplacement drifts. (3) Identify and document inputs to be used for modeling emplacement ventilation. (4) Perform calculations of temperatures and heat removal in the emplacement drift. (5) Address general considerations of the effect of water/moisture removal by ventilation on the repository thermal conditions. The numerical modeling in this document will be limited to heat-only modeling and calculations. Only a preliminary assessment of the heat/moisture ventilation effects and modeling method will be performed in this revision. Modeling of moisture effects on heat removal and emplacement drift temperature may be performed in the future.

  13. Load-Dependent and Precedence-Based Models for Pickup and ...

    E-Print Network [OSTI]

    2014-06-06T23:59:59.000Z

    Jun 6, 2014 ... Combining the Scaled Flow System with the Aggregated Flow System ..... These inequalities can be interpreted as the SOP cuts (25) lifted in the load .... extending set V by artificial source and target nodes, and defining A =.

  14. MITRADASMPANICKER 6 Transplantation of neuronal cells in animal models of neurological damage

    E-Print Network [OSTI]

    Udgaonkar, Jayant B.

    in moths. Science, 315, 863-866. The hawk moth, Manduca sexta, feeding while hovering over an artificial-wing flight of airplanes. From these studies, we were able to show that the high lift generated by flapping

  15. Ventilation Model

    SciTech Connect (OSTI)

    V. Chipman

    2002-10-05T23:59:59.000Z

    The purpose of the Ventilation Model is to simulate the heat transfer processes in and around waste emplacement drifts during periods of forced ventilation. The model evaluates the effects of emplacement drift ventilation on the thermal conditions in the emplacement drifts and surrounding rock mass, and calculates the heat removal by ventilation as a measure of the viability of ventilation to delay the onset of peak repository temperature and reduce its magnitude. The heat removal by ventilation is temporally and spatially dependent, and is expressed as the fraction of heat carried away by the ventilation air compared to the fraction of heat produced by radionuclide decay. One minus the heat removal is called the wall heat fraction, or the remaining amount of heat that is transferred via conduction to the surrounding rock mass. Downstream models, such as the ''Multiscale Thermohydrologic Model'' (BSC 2001), use the wall heat fractions as outputted from the Ventilation Model to initialize their post-closure analyses. The Ventilation Model report was initially developed to analyze the effects of preclosure continuous ventilation in the Engineered Barrier System (EBS) emplacement drifts, and to provide heat removal data to support EBS design. Revision 00 of the Ventilation Model included documentation of the modeling results from the ANSYS-based heat transfer model. The purposes of Revision 01 of the Ventilation Model are: (1) To validate the conceptual model for preclosure ventilation of emplacement drifts and verify its numerical application in accordance with new procedural requirements as outlined in AP-SIII-10Q, Models (Section 7.0). (2) To satisfy technical issues posed in KTI agreement RDTME 3.14 (Reamer and Williams 2001a). Specifically to demonstrate, with respect to the ANSYS ventilation model, the adequacy of the discretization (Section 6.2.3.1), and the downstream applicability of the model results (i.e. wall heat fractions) to initialize post-closure thermal models (Section 6.6). (3) To satisfy the remainder of KTI agreement TEF 2.07 (Reamer and Williams 2001b). Specifically to provide the results of post-test ANSYS modeling of the Atlas Facility forced convection tests (Section 7.1.2). This portion of the model report also serves as a validation exercise per AP-SIII.10Q, Models, for the ANSYS ventilation model. (4) To further satisfy KTI agreements RDTME 3.01 and 3.14 (Reamer and Williams 2001a) by providing the source documentation referred to in the KTI Letter Report, ''Effect of Forced Ventilation on Thermal-Hydrologic Conditions in the Engineered Barrier System and Near Field Environment'' (Williams 2002). Specifically to provide the results of the MULTIFLUX model which simulates the coupled processes of heat and mass transfer in and around waste emplacement drifts during periods of forced ventilation. This portion of the model report is presented as an Alternative Conceptual Model with a numerical application, and also provides corroborative results used for model validation purposes (Section 6.3 and 6.4).

  16. OSPREY Model

    SciTech Connect (OSTI)

    Veronica J. Rutledge

    2013-01-01T23:59:59.000Z

    The absence of industrial scale nuclear fuel reprocessing in the U.S. has precluded the necessary driver for developing the advanced simulation capability now prevalent in so many other countries. Thus, it is essential to model complex series of unit operations to simulate, understand, and predict inherent transient behavior and feedback loops. A capability of accurately simulating the dynamic behavior of advanced fuel cycle separation processes will provide substantial cost savings and many technical benefits. The specific fuel cycle separation process discussed in this report is the off-gas treatment system. The off-gas separation consists of a series of scrubbers and adsorption beds to capture constituents of interest. Dynamic models are being developed to simulate each unit operation involved so each unit operation can be used as a stand-alone model and in series with multiple others. Currently, an adsorption model has been developed within Multi-physics Object Oriented Simulation Environment (MOOSE) developed at the Idaho National Laboratory (INL). Off-gas Separation and REcoverY (OSPREY) models the adsorption of off-gas constituents for dispersed plug flow in a packed bed under non-isothermal and non-isobaric conditions. Inputs to the model include gas, sorbent, and column properties, equilibrium and kinetic data, and inlet conditions. The simulation outputs component concentrations along the column length as a function of time from which breakthrough data is obtained. The breakthrough data can be used to determine bed capacity, which in turn can be used to size columns. It also outputs temperature along the column length as a function of time and pressure drop along the column length. Experimental data and parameters were input into the adsorption model to develop models specific for krypton adsorption. The same can be done for iodine, xenon, and tritium. The model will be validated with experimental breakthrough curves. Customers will be given access to OSPREY to used and evaluate the model.

  17. Sandia Energy - Systems Modeling

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

    Simulation Model Energy, Power & Water Simulation Model SunCity Model Water, Energy and Carbon Sequestration Model Gila Basin-Az Water Settlement Model Electrical Grid Storage...

  18. Modeling Quality Information within Business Process Models

    E-Print Network [OSTI]

    Paech, Barbara

    Modeling Quality Information within Business Process Models Robert Heinrich, Alexander Kappe. Business process models are a useful means to document information about structure and behavior literature and tool survey on modeling quality information within business process models. Keywords: Business

  19. Modeling Arcs

    SciTech Connect (OSTI)

    Insepov, Z.; Norem, J. [Argonne National Lab, Argonne, IL 60439 (United States); Vetizer, S.; Mahalingam, S. [Tech-X Corp., Boulder, CO (United States)

    2011-12-23T23:59:59.000Z

    Although vacuum arcs were first identified over 110 years ago, they are not yet well understood. We have since developed a model of breakdown and gradient limits that tries to explain, in a self-consistent way: arc triggering, plasma initiation, plasma evolution, surface damage and gradient limits. We use simple PIC codes for modeling plasmas, molecular dynamics for modeling surface breakdown, and surface damage, and mesoscale surface thermodynamics and finite element electrostatic codes for to evaluate surface properties. Since any given experiment seems to have more variables than data points, we have tried to consider a wide variety of arcing (rf structures, e beam welding, laser ablation, etc.) to help constrain the problem, and concentrate on common mechanisms. While the mechanisms can be comparatively simple, modeling can be challenging.

  20. Programming models

    SciTech Connect (OSTI)

    Daniel, David J [Los Alamos National Laboratory; Mc Pherson, Allen [Los Alamos National Laboratory; Thorp, John R [Los Alamos National Laboratory; Barrett, Richard [SNL; Clay, Robert [SNL; De Supinski, Bronis [LLNL; Dube, Evi [LLNL; Heroux, Mike [SNL; Janssen, Curtis [SNL; Langer, Steve [LLNL; Laros, Jim [SNL

    2011-01-14T23:59:59.000Z

    A programming model is a set of software technologies that support the expression of algorithms and provide applications with an abstract representation of the capabilities of the underlying hardware architecture. The primary goals are productivity, portability and performance.

  1. LEDCOM Model

    Broader source: Energy.gov [DOE]

    Zip file containing the LEDCOM model as an excel worksheet, the backend database, and an operating information document. Extract all files to the same local directory on your computer.

  2. Model systems This year's model

    E-Print Network [OSTI]

    Raines, Ronald T.

    @biochem.wisc.edu RTR received ScB degrees in chemistry and biology from the Massachusetts Institute of Technology that initially inspired the chemical simplification. In such cases, the later stages of model studies can seem

  3. ISDAC Modeling

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

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

  4. A Decade of Progress in Constraint Modelling and Reformulation

    E-Print Network [OSTI]

    St Andrews, University of

    and Automation Alan M Frisch Artificial Intelligence Group Dept of Computer Science University ofYork 1 #12 Languages: Direct Systems · Inherited from GAMS and MGG mathematical programming languages. Later AMPL to be specified separately. This is used to specify instances. t = 12 1. Base Case: 2. Parameterise: 3. Lift: 10

  5. Main Rotor Swashplate Test Stand Design Model and System Overview

    E-Print Network [OSTI]

    Almor, Amit

    on the aircraft due to reaction forces generated by rotor blade lift which varies with rotor speed and blade angle of the modified stand: Rotating Components Drivetrain o Variable speed AC Motor o Double cardan input driveshaft, and more closely mimic the operational kinematics of a swashplate which is installed on an aircraft

  6. Modelling osteomyelitis

    E-Print Network [OSTI]

    Liò, Pietro; Paoletti, Nicola; Moni, Mohammad A; Atwell, Kathryn; Merelli, Emanuela; Viceconti, Marco

    2012-09-07T23:59:59.000Z

    13 of 14 12. Paoletti N, Lio P, Merelli E, Viceconti M: Multi-level Computational Modeling and Quantitative Analysis of Bone Remodeling. IEEE/ACM Transactions on Computational Biology and Bioinformatics 2012, 99(PrePrints). 13. Geris L, Vander Sloten...

  7. Criticality Model

    SciTech Connect (OSTI)

    A. Alsaed

    2004-09-14T23:59:59.000Z

    The ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003) presents the methodology for evaluating potential criticality situations in the monitored geologic repository. As stated in the referenced Topical Report, the detailed methodology for performing the disposal criticality analyses will be documented in model reports. Many of the models developed in support of the Topical Report differ from the definition of models as given in the Office of Civilian Radioactive Waste Management procedure AP-SIII.10Q, ''Models'', in that they are procedural, rather than mathematical. These model reports document the detailed methodology necessary to implement the approach presented in the Disposal Criticality Analysis Methodology Topical Report and provide calculations utilizing the methodology. Thus, the governing procedure for this type of report is AP-3.12Q, ''Design Calculations and Analyses''. The ''Criticality Model'' is of this latter type, providing a process evaluating the criticality potential of in-package and external configurations. The purpose of this analysis is to layout the process for calculating the criticality potential for various in-package and external configurations and to calculate lower-bound tolerance limit (LBTL) values and determine range of applicability (ROA) parameters. The LBTL calculations and the ROA determinations are performed using selected benchmark experiments that are applicable to various waste forms and various in-package and external configurations. The waste forms considered in this calculation are pressurized water reactor (PWR), boiling water reactor (BWR), Fast Flux Test Facility (FFTF), Training Research Isotope General Atomic (TRIGA), Enrico Fermi, Shippingport pressurized water reactor, Shippingport light water breeder reactor (LWBR), N-Reactor, Melt and Dilute, and Fort Saint Vrain Reactor spent nuclear fuel (SNF). The scope of this analysis is to document the criticality computational method. The criticality computational method will be used for evaluating the criticality potential of configurations of fissionable materials (in-package and external to the waste package) within the repository at Yucca Mountain, Nevada for all waste packages/waste forms. The criticality computational method is also applicable to preclosure configurations. The criticality computational method is a component of the methodology presented in ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). How the criticality computational method fits in the overall disposal criticality analysis methodology is illustrated in Figure 1 (YMP 2003, Figure 3). This calculation will not provide direct input to the total system performance assessment for license application. It is to be used as necessary to determine the criticality potential of configuration classes as determined by the configuration probability analysis of the configuration generator model (BSC 2003a).

  8. Sandia National Laboratories: Modeling

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

    Mark Boslough Featured in NOVA Special about the Chelyabinsk Meteor On April 3, 2013, in Capabilities, Computational Modeling & Simulation, Modeling, Modeling, Modeling & Analysis,...

  9. Effects of primary breakup modeling on spray and combustion characteristics of compression ignition engines

    SciTech Connect (OSTI)

    Som, S.; Aggarwal, S.K. [Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607 (United States)

    2010-06-15T23:59:59.000Z

    Injector flow dynamics and primary breakup processes are known to play a pivotal role in determining combustion and emissions in diesel engines. In the present study, we examine the effects of primary breakup modeling on the spray and combustion characteristics under diesel engine conditions. The commonly used KH model, which considers the aerodynamically induced breakup based on the Kelvin-Helmholtz instability, is modified to include the effects of cavitation and turbulence generated inside the injector. The KH model and the new (KH-ACT) model are extensively evaluated by performing 3-D time-dependent simulations with detailed chemistry under diesel engine conditions. Results indicate that the inclusion of cavitation and turbulence enhances primary breakup, leading to smaller droplet sizes, decrease in liquid penetration, and increase in the radial dispersion of spray. Predictions are compared with measurements for non-evaporating and evaporating sprays, as well as with flame measurements. While both the models are able to reproduce the experimentally observed global spray and combustion characteristics, predictions using the KH-ACT model exhibit closer agreement with measurements in terms of liquid penetration, cone angle, spray axial velocity, and liquid mass distribution for non-evaporating sprays. Similarly, the KH-ACT model leads to better agreement with respect to the liquid length and vapor penetration distance for evaporating sprays, and with respect to the flame lift-off location for combusting sprays. The improved agreement is attributed to the ability of the new model to account for the effects of turbulence and cavitation generated inside the injector, which enhance the primary breakup. Results further indicate that the combustion under diesel engine conditions is characterized by a double-flame structure with a rich premixed reaction zone near the flame stabilization region and a non-premixed reaction zone further downstream. This flame structure is consistent with the Dec's model for diesel engine combustion (Dec, 1997), and well captured by a newly developed flame index based on the scalar product of CO and O{sub 2} mass fraction gradients. (author)

  10. Translating Model Simulators to Analysis Models

    E-Print Network [OSTI]

    de Lara, Juan

    Translating Model Simulators to Analysis Models Juan de Lara1 and Hans Vangheluwe2 1 Polytechnic generation of model-to-model transformations given a description of the operational semantics of the source of operational triple graph grammar rules that transform the static information (initial model) and the dynamics

  11. Graphical models, causal inference, and econometric models

    E-Print Network [OSTI]

    Spirtes, Peter

    Graphical models, causal inference, and econometric models Peter Spirtes Abstract A graphical model modeling has historical ties to causal modeling in econometrics and other social sciences, there have been isolated from the econometric tradition. In this paper I will describe a number of recent developments

  12. Modelling intonational structure using hidden markov models

    E-Print Network [OSTI]

    Wright, Helen; Taylor, Paul A

    1997-01-01T23:59:59.000Z

    A method is introduced for using hidden Markov models (HMMs) to model intonational structure. HMMs are probabilistic and can capture the variability in structure which previous finite state network models lack. We show ...

  13. Modeling Traffic Flow Emissions

    E-Print Network [OSTI]

    Cappiello, Alessandra

    2002-09-17T23:59:59.000Z

    The main topic of this thesis is the development of light-duty vehicle dynamic emission models and their integration with dynamic traffic models. Combined, these models

  14. Hydrologic Modeling Capabilities

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

    Management Programs has both experience and technical knowledge to use and develop Earth systems models. Hydrological Modeling Models are simplified representations of...

  15. artificial intelligence based: Topics by E-print Network

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

    Introduction Qu, Rong 14 An artificial intelligence approach to model-based gas lift troubleshooting Texas A&M University - TxSpace Summary: AN ARTIFICIAL INTELLIGENCE...

  16. I&C Modeling in SPAR Models

    SciTech Connect (OSTI)

    John A. Schroeder

    2012-06-01T23:59:59.000Z

    The Standardized Plant Analysis Risk (SPAR) models for the U.S. commercial nuclear power plants currently have very limited instrumentation and control (I&C) modeling [1]. Most of the I&C components in the operating plant SPAR models are related to the reactor protection system. This was identified as a finding during the industry peer review of SPAR models. While the Emergency Safeguard Features (ESF) actuation and control system was incorporated into the Peach Bottom Unit 2 SPAR model in a recent effort [2], various approaches to expend resources for detailed I&C modeling in other SPAR models are investigated.

  17. Topological Massive Sigma Models

    E-Print Network [OSTI]

    N. D. Lambert

    1995-05-03T23:59:59.000Z

    In this paper we construct topological sigma models which include a potential and are related to twisted massive supersymmetric sigma models. Contrary to a previous construction these models have no central charge and do not require the manifold to admit a Killing vector. We use the topological massive sigma model constructed here to simplify the calculation of the observables. Lastly it is noted that this model can be viewed as interpolating between topological massless sigma models and topological Landau-Ginzburg models.

  18. Sandia Modeling Tool Webinar

    Office of Energy Efficiency and Renewable Energy (EERE)

    Webinar attendees will learn what collaborative, stakeholder-driven modeling is, how the models developed have been and could be used, and how specifically this process and resulting models might...

  19. Introduction & Scope Model & Calibration

    E-Print Network [OSTI]

    Kuhn, Matthew R.

    Introduction & Scope Principles Model & Calibration Applications Granular Fabric and Stress / papers / ASME07.pdf LATEX #12;Introduction & Scope Principles Model & Calibration Applications Outline 1 Introduction & Scope 2 Principles 3 Model & Calibration 4 Applications Kuhn -- November 12, 2007 http

  20. Multi-model Simulation for Optimal Control of Aeroacoustics.

    SciTech Connect (OSTI)

    Collis, Samuel Scott; Chen, Guoquan

    2005-05-01T23:59:59.000Z

    Flow-generated noise, especially rotorcraft noise has been a serious concern for bothcommercial and military applications. A particular important noise source for rotor-craft is Blade-Vortex-Interaction (BVI)noise, a high amplitude, impulsive sound thatoften dominates other rotorcraft noise sources. Usually BVI noise is caused by theunsteady flow changes around various rotor blades due to interactions with vorticespreviously shed by the blades. A promising approach for reducing the BVI noise isto use on-blade controls, such as suction/blowing, micro-flaps/jets, and smart struc-tures. Because the design and implementation of such experiments to evaluate suchsystems are very expensive, efficient computational tools coupled with optimal con-trol systems are required to explore the relevant physics and evaluate the feasibilityof using various micro-fluidic devices before committing to hardware.In this thesis the research is to formulate and implement efficient computationaltools for the development and study of optimal control and design strategies for com-plex flow and acoustic systems with emphasis on rotorcraft applications, especiallyBVI noise control problem. The main purpose of aeroacoustic computations is todetermine the sound intensity and directivity far away from the noise source. How-ever, the computational cost of using a high-fidelity flow-physics model across thefull domain is usually prohibitive and itmight also be less accurate because of thenumerical diffusion and other problems. Taking advantage of the multi-physics andmulti-scale structure of this aeroacoustic problem, we develop a multi-model, multi-domain (near-field/far-field) method based on a discontinuous Galerkin discretiza-tion. In this approach the coupling of multi-domains and multi-models is achievedby weakly enforcing continuity of normal fluxes across a coupling surface. For ourinterested aeroacoustics control problem, the adjoint equations that determine thesensitivity of the cost functional to changes in control are also solved with same ap-proach by weakly enforcing continuity ofnormal fluxes across a coupling surface.Such formulations have been validated extensively for several aeroacoustics state andcontrol problems.A multi-model based optimal control framework has been constructed and ap-plied to our interested BVI noise control problem. This model problem consists ofthe interaction of a compressible vortex with Bell AH-1 rotor blade with wall-normal3 velocity used as control on the rotor blade surface. The computational domain isdecomposed into the near-field and far-field. The near-field is obtained by numericalsolution of the Navier-Stokes equations while far away from the noise source, wherethe effect of nonlinearities is negligible, the linearized Euler equations are used tomodel the acoustic wave propagation. The BVI wave packet is targeted by definingan objective function that measures the square amplitude of pressure fluctuations inan observation region, at a time interval encompassing the dominant leading edgecompressibility waves. Our control results show that a 12dB reduction in the ob-servation region is obtained. Interestingly, the control mechanism focuses on theobservation region and only minimize the sound level in that region at the expense ofother regions. The vortex strength and trajectory get barely changed. However, theoptimal control does alter the interaction of the vortical and potential fields, whichis the source of BVI noise. While this results in a slight increase in drag, there is asignificant reduction in the temporal gradient of lift leading to a reduction in BVIsound levels.4

  1. Sandia National Laboratories: Modeling

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

    Sandia Study Shows Large LNG Fires Hotter but Smaller Than Expected On December 6, 2011, in Analysis, Energy Assurance, Infrastructure Security, Modeling, Modeling & Analysis,...

  2. Interactive Topic Modeling

    E-Print Network [OSTI]

    Pleple, Quentin

    26 Interactive LDA . . . . . . . . . . . . . . . .and B. Satinoff (2011). Interactive topic modeling. InOF CALIFORNIA, SAN DIEGO Interactive Topic Modeling A thesis

  3. Sandia National Laboratories: Modeling

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

    from improved climate models to performance models for underground waste storage to 3D printing and digital rock physics. Marianne Walck (Director ... Sandia Team Attends World...

  4. Sandia National Laboratories: Modeling

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

    AtomicMolecular Massively Parallel Simulator) particle library, ... Wind Generator Modeling On June 26, 2014, in Computational Modeling & Simulation, Energy, Energy...

  5. Vehicle Modeling and Simulation

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

    Vehicle Modeling and Simulation Vehicle Modeling and Simulation Matthew Thornton National Renewable Energy Laboratory matthewthornton@nrel.gov phone: 303.275.4273 Principal...

  6. Modeling and Analysis

    Broader source: Energy.gov [DOE]

    DOE modeling and analysis activities focus on reducing uncertainties and improving transparency in photovoltaics (PV) and concentrating solar power (CSP) performance modeling. The overall goal of...

  7. Towards a Conceptual Model of a Bio-Robotic AUV: Pectoral Fin Hydrodynamics

    E-Print Network [OSTI]

    Mittal, Rajat

    of these technological problems whereas the FY03 ONR MURI program (Integrated Artificial Mus- cle, High-Lift Bio of marine mammals systems (MMS), specifically dolphins. The key technological advances required in order to reach this goal are: 1) An engineered sonar system that matches the perfor- mance of MMS. 2) An AUV

  8. Nonlinear modelling of FES-supported standing up in paraplegia for selection of feedback sensors

    E-Print Network [OSTI]

    Williamson, John

    . In this manner, the results provide guidance for the design of user-friendly sensory-supported FES systems action of their lower extremities during the rehabilitation process. The lifting and stabilizing forces. This way, the muscle contractions are artificially evoked and motor functions recovered [2]. Bajd

  9. Nonlinear modelling of FES-supported standing up in paraplegia for selection of feedback sensors

    E-Print Network [OSTI]

    Shi, Jian Qing

    provide guidance for the design of user-friendly sensory-supported FES systems providing standing extremities during the rehabilitation process. The lifting and stabilizing forces are provided by the arm contractions are artificially evoked and motor functions recovered [2]. Bajd with coworkers proposed a simple

  10. Wake effects characterization using wake oscillator model Comparison on 2D response with experiments

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    forces -- Fext contain the hydrodynamic forces (drag, lift and forces issued from the potential theory oscillators is developed to predict the 2D motion in a transverse plan of two rigid cylinders in tandem. Extended studies have been conduced to describe and explain them for spring mounted uniform cylinders

  11. Confining Interactions in 1+1 and 't Hooft's model of Mesons

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    continuation to negative h turns vacuum into "false vac- uum" V ( )symm + h V ( )asymm V ( )symm - h V ( )asymm vacuum "false vacuum" "False vacuum" decay: m 0() (-) e - || at lifts vacuum degeneracy from spon- taneously broken symmetry; "Quarks" are domain walls. · Presence

  12. Sandia National Laboratories: Modeling & Analysis

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

    On September 19, 2013, in Computational Modeling & Simulation, Distribution Grid Integration, Energy, Facilities, Grid Integration, Modeling, Modeling & Analysis, News, News &...

  13. OSHWPP model programs guide

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    Descriptions of model occupational health and safety programs implemented at DOE facilities are presented.

  14. Sandia National Laboratories: Modeling & Analysis

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

    Mark Boslough Featured in NOVA Special about the Chelyabinsk Meteor On April 3, 2013, in Capabilities, Computational Modeling & Simulation, Modeling, Modeling, Modeling & Analysis,...

  15. Sandia National Laboratories: Modeling & Analysis

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

    Sandian Mark Boslough Featured on NOVA Episode about Chelyabinsk Meteor On November 20, 2013, in Computational Modeling & Simulation, Modeling, Modeling, Modeling & Analysis,...

  16. Calibrated Properties Model

    SciTech Connect (OSTI)

    C. Ahlers; H. Liu

    2000-03-12T23:59:59.000Z

    The purpose of this Analysis/Model Report (AMR) is to document the Calibrated Properties Model that provides calibrated parameter sets for unsaturated zone (UZ) flow and transport process models for the Yucca Mountain Site Characterization Project (YMP). This work was performed in accordance with the ''AMR Development Plan for U0035 Calibrated Properties Model REV00. These calibrated property sets include matrix and fracture parameters for the UZ Flow and Transport Model (UZ Model), drift seepage models, drift-scale and mountain-scale coupled-processes models, and Total System Performance Assessment (TSPA) models as well as Performance Assessment (PA) and other participating national laboratories and government agencies. These process models provide the necessary framework to test conceptual hypotheses of flow and transport at different scales and predict flow and transport behavior under a variety of climatic and thermal-loading conditions.

  17. Time Series Models: Hidden Markov Models

    E-Print Network [OSTI]

    Roweis, Sam

    Time Series Models: Hidden Markov Models & Linear Dynamical Systems Sam Roweis Gatsby Computational before. Discrete state: { Moore and Mealy machines (engineering) { stochastic #12;nite state automata (CS chain with stochastic measurements. Gauss-Markov process in a pancake. PSfrag replacements x 1 y 1 x 2 y

  18. Time Series Models: Hidden Markov Models

    E-Print Network [OSTI]

    Roweis, Sam

    Time Series Models: Hidden Markov Models & Linear Dynamical Systems Sam Roweis Gatsby Computational. Discrete state: { Moore and Mealy machines (engineering) { stochastic #12;nite state automata (CS with stochastic measurements. Gauss-Markov process in a pancake. PSfrag replacements x 1 y 1 x 2 y 2 x 3 y 3 x T y

  19. Model Validation Status Review

    SciTech Connect (OSTI)

    E.L. Hardin

    2001-11-28T23:59:59.000Z

    The primary objective for the Model Validation Status Review was to perform a one-time evaluation of model validation associated with the analysis/model reports (AMRs) containing model input to total-system performance assessment (TSPA) for the Yucca Mountain site recommendation (SR). This review was performed in response to Corrective Action Request BSC-01-C-01 (Clark 2001, Krisha 2001) pursuant to Quality Assurance review findings of an adverse trend in model validation deficiency. The review findings in this report provide the following information which defines the extent of model validation deficiency and the corrective action needed: (1) AMRs that contain or support models are identified, and conversely, for each model the supporting documentation is identified. (2) The use for each model is determined based on whether the output is used directly for TSPA-SR, or for screening (exclusion) of features, events, and processes (FEPs), and the nature of the model output. (3) Two approaches are used to evaluate the extent to which the validation for each model is compliant with AP-3.10Q (Analyses and Models). The approaches differ in regard to whether model validation is achieved within individual AMRs as originally intended, or whether model validation could be readily achieved by incorporating information from other sources. (4) Recommendations are presented for changes to the AMRs, and additional model development activities or data collection, that will remedy model validation review findings, in support of licensing activities. The Model Validation Status Review emphasized those AMRs that support TSPA-SR (CRWMS M&O 2000bl and 2000bm). A series of workshops and teleconferences was held to discuss and integrate the review findings. The review encompassed 125 AMRs (Table 1) plus certain other supporting documents and data needed to assess model validity. The AMRs were grouped in 21 model areas representing the modeling of processes affecting the natural and engineered barriers, plus the TSPA model itself Description of the model areas is provided in Section 3, and the documents reviewed are described in Section 4. The responsible manager for the Model Validation Status Review was the Chief Science Officer (CSO) for Bechtel-SAIC Co. (BSC). The team lead was assigned by the CSO. A total of 32 technical specialists were engaged to evaluate model validation status in the 21 model areas. The technical specialists were generally independent of the work reviewed, meeting technical qualifications as discussed in Section 5.

  20. Energy-consumption modelling

    SciTech Connect (OSTI)

    Reiter, E.R.

    1980-01-01T23:59:59.000Z

    A highly sophisticated and accurate approach is described to compute on an hourly or daily basis the energy consumption for space heating by individual buildings, urban sectors, and whole cities. The need for models and specifically weather-sensitive models, composite models, and space-heating models are discussed. Development of the Colorado State University Model, based on heat-transfer equations and on a heuristic, adaptive, self-organizing computation learning approach, is described. Results of modeling energy consumption by the city of Minneapolis and Cheyenne are given. Some data on energy consumption in individual buildings are included.

  1. Biosphere Model Report

    SciTech Connect (OSTI)

    D.W. Wu; A.J. Smith

    2004-11-08T23:59:59.000Z

    The purpose of this report is to document the biosphere model, the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), which describes radionuclide transport processes in the biosphere and associated human exposure that may arise as the result of radionuclide release from the geologic repository at Yucca Mountain. The biosphere model is one of the process models that support the Yucca Mountain Project (YMP) Total System Performance Assessment (TSPA) for the license application (LA), TSPA-LA. The ERMYN provides the capability of performing human radiation dose assessments. This report documents the biosphere model, which includes: (1) Describing the reference biosphere, human receptor, exposure scenarios, and primary radionuclides for each exposure scenario (Section 6.1); (2) Developing a biosphere conceptual model using site-specific features, events, and processes (FEPs) (Section 6.2), the reference biosphere (Section 6.1.1), the human receptor (Section 6.1.2), and approximations (Sections 6.3.1.4 and 6.3.2.4); (3) Building a mathematical model using the biosphere conceptual model (Section 6.3) and published biosphere models (Sections 6.4 and 6.5); (4) Summarizing input parameters for the mathematical model, including the uncertainty associated with input values (Section 6.6); (5) Identifying improvements in the ERMYN compared with the model used in previous biosphere modeling (Section 6.7); (6) Constructing an ERMYN implementation tool (model) based on the biosphere mathematical model using GoldSim stochastic simulation software (Sections 6.8 and 6.9); (7) Verifying the ERMYN by comparing output from the software with hand calculations to ensure that the GoldSim implementation is correct (Section 6.10); (8) Validating the ERMYN by corroborating it with published biosphere models; comparing conceptual models, mathematical models, and numerical results (Section 7).

  2. Volumetric particle modeling 

    E-Print Network [OSTI]

    Dingle, Brent Michael

    2007-09-17T23:59:59.000Z

    This dissertation presents a robust method of modeling objects and forces for computer animation. Within this method objects and forces are represented as particles. As in most modeling systems, the movement of objects is driven by physically based...

  3. Sandia Modeling Tool Webinar

    Broader source: Energy.gov [DOE]

    Hosted by the Energy Department and Western Area Power Administration, this webinar will show attendees about what collaborative, stakeholder-driven modeling is and how the modeling tools and process developed by Sandia can be used in Indian Country.

  4. Ratchet Model of Baryogenesis

    E-Print Network [OSTI]

    Takeuchi, Tatsu; Sugamoto, Akio

    2010-01-01T23:59:59.000Z

    We propose a toy model of baryogenesis which applies the `ratchet mechanism,' used frequently in the theory of biological molecular motors, to a model proposed by Dimopoulos and Susskind.

  5. Ratchet Model of Baryogenesis

    E-Print Network [OSTI]

    Tatsu Takeuchi; Azusa Minamizaki; Akio Sugamoto

    2013-01-06T23:59:59.000Z

    We propose a toy model of baryogenesis which applies the `ratchet mechanism,' used frequently in the theory of biological molecular motors, to a model proposed by Dimopoulos and Susskind.

  6. Nonparametric Bayesian behavior modeling

    E-Print Network [OSTI]

    Joseph, Joshua Mason

    2008-01-01T23:59:59.000Z

    As autonomous robots are increasingly used in complex, dynamic environments, it is crucial that the dynamic elements are modeled accurately. However, it is often difficult to generate good models due to either a lack of ...

  7. Optimizing Preventive Maintenance Models

    E-Print Network [OSTI]

    Optimizing Preventive Maintenance Models. Michael Bartholomew-Biggs. School of Physics Astronomy and Mathematics, University of Hertfordshire.

  8. Community Ecology Processes, Models,

    E-Print Network [OSTI]

    Kleyer, Michael

    3 Modelling the dynamics of complex food webs 37 Ulrich Brose and Jennifer A. Dunne 3.1 Introduction

  9. Sandia Energy - Modeling

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

    Research and Innovation (CIRI), Computational Modeling & Simulation, Energy, Energy Storage, Energy Storage Systems, Facilities, HITEC, Infrastructure Security,...

  10. Rock Properties Model

    SciTech Connect (OSTI)

    C. Lum

    2004-09-16T23:59:59.000Z

    The purpose of this model report is to document the Rock Properties Model version 3.1 with regard to input data, model methods, assumptions, uncertainties and limitations of model results, and qualification status of the model. The report also documents the differences between the current and previous versions and validation of the model. The rock properties model provides mean matrix and lithophysae porosity, and the cross-correlated mean bulk density as direct input to the ''Saturated Zone Flow and Transport Model Abstraction'', MDL-NBS-HS-000021, REV 02 (BSC 2004 [DIRS 170042]). The constraints, caveats, and limitations associated with this model are discussed in Section 6.6 and 8.2. Model validation accomplished by corroboration with data not cited as direct input is discussed in Section 7. The revision of this model report was performed as part of activities being conducted under the ''Technical Work Plan for: The Integrated Site Model, Revision 05'' (BSC 2004 [DIRS 169635]). The purpose of this revision is to bring the report up to current procedural requirements and address the Regulatory Integration Team evaluation comments. The work plan describes the scope, objectives, tasks, methodology, and procedures for this process.

  11. Introduction & Scope Model & Calibration

    E-Print Network [OSTI]

    Kuhn, Matthew R.

    Introduction & Scope Principles Model & Calibration Applications Bulk Evolution of Fabric.up.edu / kuhn / papers / EMD2007.pdf LATE #12;Introduction & Scope Principles Model & Calibration Applications Outline 1 Introduction & Scope 2 Principles 3 Model & Calibration 4 Applications Kuhn -- June 4, 2007 http

  12. Model Fire Protection Program

    Broader source: Energy.gov [DOE]

    To facilitate conformance with its fire safety directives and the implementation of a comprehensive fire protection program, DOE has developed a number of "model" program documents. These include a comprehensive model fire protection program, model fire hazards analyses and assessments, fire protection system inspection and testing procedures, and related material.

  13. Chaos Models in Economics

    E-Print Network [OSTI]

    Sorin Vlad; Paul Pascu; Nicolae Morariu

    2010-01-20T23:59:59.000Z

    The paper discusses the main ideas of the chaos theory and presents mainly the importance of the nonlinearities in the mathematical models. Chaos and order are apparently two opposite terms. The fact that in chaos can be found a certain precise symmetry (Feigenbaum numbers) is even more surprising. As an illustration of the ubiquity of chaos, three models among many other existing models that have chaotic features are presented here: the nonlinear feedback profit model, one model for the simulation of the exchange rate and one application of the chaos theory in the capital markets.

  14. CRAC2 model description

    SciTech Connect (OSTI)

    Ritchie, L.T.; Alpert, D.J.; Burke, R.P.; Johnson, J.D.; Ostmeyer, R.M.; Aldrich, D.C.; Blond, R.M.

    1984-03-01T23:59:59.000Z

    The CRAC2 computer code is a revised version of CRAC (Calculation of Reactor Accident Consequences) which was developed for the Reactor Safety Study. This document provides an overview of the CRAC2 code and a description of each of the models used. Significant improvements incorporated into CRAC2 include an improved weather sequence sampling technique, a new evacuation model, and new output capabilities. In addition, refinements have been made to the atmospheric transport and deposition model. Details of the modeling differences between CRAC2 and CRAC are emphasized in the model descriptions.

  15. RELATIONSHIPS FOR MODELLING WATER FLOW IN GEOTECHNICAL CENTRIFUGE MODELS [abstract

    E-Print Network [OSTI]

    Goodings, Deborah

    1984-01-01T23:59:59.000Z

    relationships between centrifuge model and prototype waterADVANCES IN GEOTECHNICAL CENTRIFUGE MODELING A symposium onAdvances in Geotechnical Centrifuge Modeling was held on

  16. Foam process models.

    SciTech Connect (OSTI)

    Moffat, Harry K.; Noble, David R.; Baer, Thomas A. (Procter & Gamble Co., West Chester, OH); Adolf, Douglas Brian; Rao, Rekha Ranjana; Mondy, Lisa Ann

    2008-09-01T23:59:59.000Z

    In this report, we summarize our work on developing a production level foam processing computational model suitable for predicting the self-expansion of foam in complex geometries. The model is based on a finite element representation of the equations of motion, with the movement of the free surface represented using the level set method, and has been implemented in SIERRA/ARIA. An empirically based time- and temperature-dependent density model is used to encapsulate the complex physics of foam nucleation and growth in a numerically tractable model. The change in density with time is at the heart of the foam self-expansion as it creates the motion of the foam. This continuum-level model uses an homogenized description of foam, which does not include the gas explicitly. Results from the model are compared to temperature-instrumented flow visualization experiments giving the location of the foam front as a function of time for our EFAR model system.

  17. RHP: HOW CLIMATE MODELS GAIN AND EXERCISE How Climate Models Gain and Exercise Authority

    E-Print Network [OSTI]

    Hulme, Mike

    -dimensional models, intermediate complexity models, general circulation models, and Earth system models. 2 www

  18. Ventilation Model Report

    SciTech Connect (OSTI)

    V. Chipman; J. Case

    2002-12-20T23:59:59.000Z

    The purpose of the Ventilation Model is to simulate the heat transfer processes in and around waste emplacement drifts during periods of forced ventilation. The model evaluates the effects of emplacement drift ventilation on the thermal conditions in the emplacement drifts and surrounding rock mass, and calculates the heat removal by ventilation as a measure of the viability of ventilation to delay the onset of peak repository temperature and reduce its magnitude. The heat removal by ventilation is temporally and spatially dependent, and is expressed as the fraction of heat carried away by the ventilation air compared to the fraction of heat produced by radionuclide decay. One minus the heat removal is called the wall heat fraction, or the remaining amount of heat that is transferred via conduction to the surrounding rock mass. Downstream models, such as the ''Multiscale Thermohydrologic Model'' (BSC 2001), use the wall heat fractions as outputted from the Ventilation Model to initialize their post-closure analyses. The Ventilation Model report was initially developed to analyze the effects of preclosure continuous ventilation in the Engineered Barrier System (EBS) emplacement drifts, and to provide heat removal data to support EBS design. Revision 00 of the Ventilation Model included documentation of the modeling results from the ANSYS-based heat transfer model. Revision 01 ICN 01 included the results of the unqualified software code MULTIFLUX to assess the influence of moisture on the ventilation efficiency. The purposes of Revision 02 of the Ventilation Model are: (1) To validate the conceptual model for preclosure ventilation of emplacement drifts and verify its numerical application in accordance with new procedural requirements as outlined in AP-SIII-10Q, Models (Section 7.0). (2) To satisfy technical issues posed in KTI agreement RDTME 3.14 (Reamer and Williams 2001a). Specifically to demonstrate, with respect to the ANSYS ventilation model, the adequacy of the discretization (Section 6.2.3.1), and the downstream applicability of the model results (i.e. wall heat fractions) to initialize post-closure thermal models (Section 6.6). (3) To satisfy the remainder of KTI agreement TEF 2.07 (Reamer and Williams 2001b). Specifically to provide the results of post-test ANSYS modeling of the Atlas Facility forced convection tests (Section 7.1.2). This portion of the model report also serves as a validation exercise per AP-SIII.10Q, Models, for the ANSYS ventilation model. (4) To asses the impacts of moisture on the ventilation efficiency.

  19. Constitutive models in LAME.

    SciTech Connect (OSTI)

    Hammerand, Daniel Carl; Scherzinger, William Mark

    2007-09-01T23:59:59.000Z

    The Library of Advanced Materials for Engineering (LAME) provides a common repository for constitutive models that can be used in computational solid mechanics codes. A number of models including both hypoelastic (rate) and hyperelastic (total strain) constitutive forms have been implemented in LAME. The structure and testing of LAME is described in Scherzinger and Hammerand ([3] and [4]). The purpose of the present report is to describe the material models which have already been implemented into LAME. The descriptions are designed to give useful information to both analysts and code developers. Thus far, 33 non-ITAR/non-CRADA protected material models have been incorporated. These include everything from the simple isotropic linear elastic models to a number of elastic-plastic models for metals to models for honeycomb, foams, potting epoxies and rubber. A complete description of each model is outside the scope of the current report. Rather, the aim here is to delineate the properties, state variables, functions, and methods for each model. However, a brief description of some of the constitutive details is provided for a number of the material models. Where appropriate, the SAND reports available for each model have been cited. Many models have state variable aliases for some or all of their state variables. These alias names can be used for outputting desired quantities. The state variable aliases available for results output have been listed in this report. However, not all models use these aliases. For those models, no state variable names are listed. Nevertheless, the number of state variables employed by each model is always given. Currently, there are four possible functions for a material model. This report lists which of these four methods are employed in each material model. As far as analysts are concerned, this information is included only for the awareness purposes. The analyst can take confidence in the fact that model has been properly implemented and the methods necessary for achieving accurate and efficient solutions have been incorporated. The most important method is the getStress function where the actual material model evaluation takes place. Obviously, all material models incorporate this function. The initialize function is included in most material models. The initialize function is called once at the beginning of an analysis and its primary purpose is to initialize the material state variables associated with the model. Many times, there is some information which can be set once per load step. For instance, we may have temperature dependent material properties in an analysis where temperature is prescribed. Instead of setting those parameters at each iteration in a time step, it is much more efficient to set them once per time step at the beginning of the step. These types of load step initializations are performed in the loadStepInit method. The final function used by many models is the pcElasticModuli method which changes the moduli that are to be used by the elastic preconditioner in Adagio. The moduli for the elastic preconditioner are set during the initialization of Adagio. Sometimes, better convergence can be achieved by changing these moduli for the elastic preconditioner. For instance, it typically helps to modify the preconditioner when the material model has temperature dependent moduli. For many material models, it is not necessary to change the values of the moduli that are set initially in the code. Hence, those models do not have pcElasticModuli functions. All four of these methods receive information from the matParams structure as described by Scherzinger and Hammerand.

  20. Sandia National Laboratories: combustion modeling

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

    modeling Direct Measurement of Key Molecule Will Increase Accuracy of Combustion Models On March 3, 2015, in Computational Modeling & Simulation, CRF, Energy, Facilities, News,...

  1. Sandia National Laboratories: Systems Modeling

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

    AnalysisSystems Modeling Systems Modeling Technical Expertise Projects Demos Partners Biographies Publications Technical Expertise Computer Assisted (CA) System dynamics modeling...

  2. The model coupling toolkit.

    SciTech Connect (OSTI)

    Larson, J. W.; Jacob, R. L.; Foster, I.; Guo, J.

    2001-04-13T23:59:59.000Z

    The advent of coupled earth system models has raised an important question in parallel computing: What is the most effective method for coupling many parallel models to form a high-performance coupled modeling system? We present our solution to this problem--The Model Coupling Toolkit (MCT). We explain how our effort to construct the Next-Generation Coupler for NCAR Community Climate System Model motivated us to create this toolkit. We describe in detail the conceptual design of the MCT and explain its usage in constructing parallel coupled models. We present preliminary performance results for the toolkit's parallel data transfer facilities. Finally, we outline an agenda for future development of the MCT.

  3. An array-oriented language with static rank polymorphism

    E-Print Network [OSTI]

    Manolios, Panagiotis "Pete"

    . Our type system's principal contribution is that it serves to extract the implicit control structure model is sub- Turing. Lifting operations to work on aggregate structures means the control structure of a program's control structure im- plicit by lifting base operators to higher-dimensional array structures

  4. Solid model design simplification

    SciTech Connect (OSTI)

    Ames, A.L.; Rivera, J.J.; Webb, A.J.; Hensinger, D.M.

    1997-12-01T23:59:59.000Z

    This paper documents an investigation of approaches to improving the quality of Pro/Engineer-created solid model data for use by downstream applications. The investigation identified a number of sources of problems caused by deficiencies in Pro/Engineer`s geometric engine, and developed prototype software capable of detecting many of these problems and guiding users towards simplified, useable models. The prototype software was tested using Sandia production solid models, and provided significant leverage in attacking the simplification problem.

  5. Studied models Numerical scheme

    E-Print Network [OSTI]

    Helluy, Philippe

    : Sound speed: c0 = 1500m/s Pressure: p0 = 105Pa Density: 0 = 1000kg/m3 Vapor: 1 = 1.4 (1 = 0) Water: 2. Helluy, S. M¨uller H´el`ene Mathis Micro-Macro Modelling and Simulation of Liquid-Vapour Flows #12 approximations H´el`ene Mathis Micro-Macro Modelling and Simulation of Liquid-Vapour Flows #12;Studied models

  6. Modeling urban runoff characteristics

    E-Print Network [OSTI]

    Garcia, Alfred

    1987-01-01T23:59:59.000Z

    the impact that urban1zation has on storm runoff. An accurate method is required to model urban watersheds and to simulate storm runoff. Research Objectives The purpose of this research was to quantitatively define the effect that urbanization has... are typical in the sense that they follow the steps outlined above. These models include: the British Road Research Laboratory Nodel (RRL), 1962; the Chicago Hydrograph Method (NERO), 1970; the Environmental Protection Agency Storm Water Management Model...

  7. Photovoltaics Business Models

    SciTech Connect (OSTI)

    Frantzis, L.; Graham, S.; Katofsky, R.; Sawyer, H.

    2008-02-01T23:59:59.000Z

    This report summarizes work to better understand the structure of future photovoltaics business models and the research, development, and demonstration required to support their deployment.

  8. Sandia Energy - Modeling

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

    Sandia Will Host PV Bankability Workshop at Solar Power International (SPI) 2013 Computational Modeling & Simulation, Distribution Grid Integration, Energy, Facilities, Grid...

  9. The Standard Model

    ScienceCinema (OSTI)

    Lincoln, Don

    2014-08-12T23:59:59.000Z

    Fermilab scientist Don Lincoln describes the Standard Model of particle physics, covering both the particles that make up the subatomic realm and the forces that govern them.

  10. Sandia National Laboratories: Modeling

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

    Modeling Widespread Hydrogen Fueling Infrastructure Is the Goal of H2FIRST Project On June 4, 2014, in Capabilities, Center for Infrastructure Research and Innovation (CIRI),...

  11. Hoechst Celanese Energy Model 

    E-Print Network [OSTI]

    Fitzpatrick, B. A.; Gangadhar, K.

    1992-01-01T23:59:59.000Z

    operating areas or "units" in HOCEM, though some of the units are as simple as cooling towers and others as complex as production areas. A VAX-based spreadsheet software program, Graphic Outlook, from stone Mountain Computing was selected as the model... an energy model which is modular in structure and granular in function. It was also our intention to develop the model on a VAX based software platform so that an on-line plant information system could be linked to the model. Graphic Outlook, a VAX...

  12. Epidemic modeling techniques for smallpox

    E-Print Network [OSTI]

    McLean, Cory Y. (Cory Yuen Fu)

    2004-01-01T23:59:59.000Z

    Infectious disease models predict the impact of outbreaks. Discrepancies between model predictions stem from both the disease parameters used and the underlying mathematics of the models. Smallpox has been modeled extensively ...

  13. Model selection in compositional spaces

    E-Print Network [OSTI]

    Grosse, Roger Baker

    2014-01-01T23:59:59.000Z

    We often build complex probabilistic models by composing simpler models-using one model to generate parameters or latent variables for another model. This allows us to express complex distributions over the observed data ...

  14. Better Buildings Neighborhood Program Business Models Guide:...

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

    Guide: HVAC Contractor Business Model Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model HVAC contractor business model...

  15. Introduction Improved Model Alternative Statistical Model

    E-Print Network [OSTI]

    Regression Linear "Linear" is for the parameter(s) e.g. yi = 0 +1xi +i Non-linear "Non-linear Square Regression Linear "Linear" is for the parameter(s) e.g. yi = 0 +1xi +i #12;Introduction Improved Model Recall of Ordinary Least-Square Regression Least Square Regression Linear "Linear

  16. SUSY Model Building

    E-Print Network [OSTI]

    Stuart Raby

    2007-10-19T23:59:59.000Z

    I review some of the latest directions in supersymmetric model building, focusing on SUSY breaking mechanisms in the minimal supersymmetric standard model [MSSM], the "little" hierarchy and $\\mu$ problems, etc. I then discuss SUSY GUTs and UV completions in string theory.

  17. String Model Building

    E-Print Network [OSTI]

    Stuart Raby

    2009-11-06T23:59:59.000Z

    In this talk I review some recent progress in heterotic and F theory model building. I then consider work in progress attempting to find the F theory dual to a class of heterotic orbifold models which come quite close to the MSSM.

  18. Assurance and formal models

    E-Print Network [OSTI]

    Abadi, Martín

    of hardware, software, and set-up information on which the security of the system depends. Also: · The part the limitations of models. ­ Binary-level exploits despite "secure" languages. ­ Power analysis on "secure. · Used by many people, including protocol designers. · Lacked a clear link with operational models

  19. Volumetric particle modeling

    E-Print Network [OSTI]

    Dingle, Brent Michael

    2007-09-17T23:59:59.000Z

    and the lifetime of each particle is infinite. 2.1.2 Growing Patterns Particle systems can also model static or instantaneous things. They have been used to model plants and fracture patterns [21, 22] as well as lightning, frost, ice or snowflakes [23... mixes with dirt particles to form mud particles................................................... 121 61 Mud drying and cracking............................................................................................... 122 62 Ice melting...

  20. Composite Load Model Evaluation

    SciTech Connect (OSTI)

    Lu, Ning; Qiao, Hong (Amy)

    2007-09-30T23:59:59.000Z

    The WECC load modeling task force has dedicated its effort in the past few years to develop a composite load model that can represent behaviors of different end-user components. The modeling structure of the composite load model is recommended by the WECC load modeling task force. GE Energy has implemented this composite load model with a new function CMPLDW in its power system simulation software package, PSLF. For the last several years, Bonneville Power Administration (BPA) has taken the lead and collaborated with GE Energy to develop the new composite load model. Pacific Northwest National Laboratory (PNNL) and BPA joint force and conducted the evaluation of the CMPLDW and test its parameter settings to make sure that: • the model initializes properly, • all the parameter settings are functioning, and • the simulation results are as expected. The PNNL effort focused on testing the CMPLDW in a 4-bus system. An exhaustive testing on each parameter setting has been performed to guarantee each setting works. This report is a summary of the PNNL testing results and conclusions.

  1. Modeling for Insights

    SciTech Connect (OSTI)

    Jacob J. Jacobson; Gretchen Matthern

    2007-04-01T23:59:59.000Z

    System Dynamics is a computer-aided approach to evaluating the interrelationships of different components and activities within complex systems. Recently, System Dynamics models have been developed in areas such as policy design, biological and medical modeling, energy and the environmental analysis, and in various other areas in the natural and social sciences. The real power of System Dynamic modeling is gaining insights into total system behavior as time, and system parameters are adjusted and the effects are visualized in real time. System Dynamic models allow decision makers and stakeholders to explore long-term behavior and performance of complex systems, especially in the context of dynamic processes and changing scenarios without having to wait decades to obtain field data or risk failure if a poor management or design approach is used. The Idaho National Laboratory recently has been developing a System Dynamic model of the US Nuclear Fuel Cycle. The model is intended to be used to identify and understand interactions throughout the entire nuclear fuel cycle and suggest sustainable development strategies. This paper describes the basic framework of the current model and presents examples of useful insights gained from the model thus far with respect to sustainable development of nuclear power.

  2. Varicella infection modeling.

    SciTech Connect (OSTI)

    Jones, Katherine A.; Finley, Patrick D.; Moore, Thomas W.; Nozick, Linda Karen; Martin, Nathaniel; Bandlow, Alisa; Detry, Richard Joseph; Evans, Leland B.; Berger, Taylor Eugen

    2013-09-01T23:59:59.000Z

    Infectious diseases can spread rapidly through healthcare facilities, resulting in widespread illness among vulnerable patients. Computational models of disease spread are useful for evaluating mitigation strategies under different scenarios. This report describes two infectious disease models built for the US Department of Veteran Affairs (VA) motivated by a Varicella outbreak in a VA facility. The first model simulates disease spread within a notional contact network representing staff and patients. Several interventions, along with initial infection counts and intervention delay, were evaluated for effectiveness at preventing disease spread. The second model adds staff categories, location, scheduling, and variable contact rates to improve resolution. This model achieved more accurate infection counts and enabled a more rigorous evaluation of comparative effectiveness of interventions.

  3. Global ice sheet modeling

    SciTech Connect (OSTI)

    Hughes, T.J.; Fastook, J.L. [Univ. of Maine, Orono, ME (United States). Institute for Quaternary Studies

    1994-05-01T23:59:59.000Z

    The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed.

  4. XAFS Model Compound Library

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

    Newville, Matthew

    The XAFS Model Compound Library contains XAFS data on model compounds. The term "model" compounds refers to compounds of homogeneous and well-known crystallographic or molecular structure. Each data file in this library has an associated atoms.inp file that can be converted to a feff.inp file using the program ATOMS. (See the related Searchable Atoms.inp Archive at http://cars9.uchicago.edu/~newville/adb/) This Library exists because XAFS data on model compounds is useful for several reasons, including comparing to unknown data for "fingerprinting" and testing calculations and analysis methods. The collection here is currently limited, but is growing. The focus to date has been on inorganic compounds and minerals of interest to the geochemical community. [Copied, with editing, from http://cars9.uchicago.edu/~newville/ModelLib/

  5. Anisotropic Rabi model

    E-Print Network [OSTI]

    Qiong-Tao Xie; Shuai Cui; Jun-Peng Cao; Luigi Amico; Heng Fan

    2014-05-20T23:59:59.000Z

    We define the anisotropic Rabi model as the generalization of the spin-boson Rabi model: The Hamiltonian system breaks the parity symmetry; the rotating and counter-rotating interactions are governed by two different coupling constants; a further parameter introduces a phase factor in the counter-rotating terms. The exact energy spectrum and eigenstates of the generalized model is worked out. The solution is obtained as an elaboration of a recent proposed method for the isotropic limit of the model. In this way, we provide a long sought solution of a cascade of models with immediate relevance in different physical fields, including i) quantum optics: two-level atom in single mode cross electric and magnetic fields; ii) solid state physics: electrons in semiconductors with Rashba and Dresselhaus spin-orbit coupling; iii) mesoscopic physics: Josephson junctions flux-qubit quantum circuits.

  6. Criticality Model Report

    SciTech Connect (OSTI)

    J.M. Scaglione

    2003-03-12T23:59:59.000Z

    The purpose of the ''Criticality Model Report'' is to validate the MCNP (CRWMS M&O 1998h) code's ability to accurately predict the effective neutron multiplication factor (k{sub eff}) for a range of conditions spanned by various critical configurations representative of the potential configurations commercial reactor assemblies stored in a waste package may take. Results of this work are an indication of the accuracy of MCNP for calculating eigenvalues, which will be used as input for criticality analyses for spent nuclear fuel (SNF) storage at the proposed Monitored Geologic Repository. The scope of this report is to document the development and validation of the criticality model. The scope of the criticality model is only applicable to commercial pressurized water reactor fuel. Valid ranges are established as part of the validation of the criticality model. This model activity follows the description in BSC (2002a).

  7. An approach to modeling a kinematically redundant dual manipulator closed chain system using pseudovelocities

    SciTech Connect (OSTI)

    Unseren, M.A.

    1996-05-01T23:59:59.000Z

    The paper discusses the problem of resolving the kinematic redundancy in the closed chain formed when two redundant manipulators mutually lift a rigid body object. The positional degrees of freedom (DOF) in the closed chain are parameterized by a set of independent variables termed pseudovelocities. Due to the redundancy there are more DOF and thus more pseudovelocities than are required to specify the motion of the held object. The additional ``redundant`` pseudovelocities are used to minimize the distance between the vector of unknown joint velocities and a vector of ``corrective`` joint velocities in a Euclidean norm sense. This leads to an optimal solution for the joint velocities as a linear function of the Cartesian object velocities and the corrective velocities. The problem of determining the corrective velocities to avoid collisions of the links with a wall located in the workspace and to avoid joint range limits is illustrated by an example of two redundant planar revolute joint manipulators mutually lifting a rigid object.

  8. SPAR Model Structural Efficiencies

    SciTech Connect (OSTI)

    John Schroeder; Dan Henry

    2013-04-01T23:59:59.000Z

    The Nuclear Regulatory Commission (NRC) and the Electric Power Research Institute (EPRI) are supporting initiatives aimed at improving the quality of probabilistic risk assessments (PRAs). Included in these initiatives are the resolution of key technical issues that are have been judged to have the most significant influence on the baseline core damage frequency of the NRC’s Standardized Plant Analysis Risk (SPAR) models and licensee PRA models. Previous work addressed issues associated with support system initiating event analysis and loss of off-site power/station blackout analysis. The key technical issues were: • Development of a standard methodology and implementation of support system initiating events • Treatment of loss of offsite power • Development of standard approach for emergency core cooling following containment failure Some of the related issues were not fully resolved. This project continues the effort to resolve outstanding issues. The work scope was intended to include substantial collaboration with EPRI; however, EPRI has had other higher priority initiatives to support. Therefore this project has addressed SPAR modeling issues. The issues addressed are • SPAR model transparency • Common cause failure modeling deficiencies and approaches • Ac and dc modeling deficiencies and approaches • Instrumentation and control system modeling deficiencies and approaches

  9. Model Discrepancy in the Saturated Path Hydrology Model: Initial Analysis

    E-Print Network [OSTI]

    Oakley, Jeremy

    Model Discrepancy in the Saturated Path Hydrology Model: Initial Analysis Tom Fricker University discrepancy in the Saturated Path Hydrology Model (logSPM, Kuczera et al., 2006). The purpose). 1 #12;3 The Saturated Path Hydrology Model We consider the Saturated Path Hydrology Model (log

  10. Modeling EERE Deployment Programs

    SciTech Connect (OSTI)

    Cort, Katherine A.; Hostick, Donna J.; Belzer, David B.; Livingston, Olga V.

    2007-11-08T23:59:59.000Z

    The purpose of this report is to compile information and conclusions gathered as part of three separate tasks undertaken as part of the overall project, “Modeling EERE Deployment Programs,” sponsored by the Planning, Analysis, and Evaluation office within the Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE). The purpose of the project was to identify and characterize the modeling of deployment programs within the EERE Technology Development (TD) programs, address improvements to modeling in the near term, and note gaps in knowledge where future research is needed.

  11. Modeling Compressed Turbulence

    SciTech Connect (OSTI)

    Israel, Daniel M. [Los Alamos National Laboratory

    2012-07-13T23:59:59.000Z

    From ICE to ICF, the effect of mean compression or expansion is important for predicting the state of the turbulence. When developing combustion models, we would like to know the mix state of the reacting species. This involves density and concentration fluctuations. To date, research has focused on the effect of compression on the turbulent kinetic energy. The current work provides constraints to help development and calibration for models of species mixing effects in compressed turbulence. The Cambon, et al., re-scaling has been extended to buoyancy driven turbulence, including the fluctuating density, concentration, and temperature equations. The new scalings give us helpful constraints for developing and validating RANS turbulence models.

  12. Semiempirical models of sunspots

    SciTech Connect (OSTI)

    Sobotka, M.

    1985-10-01T23:59:59.000Z

    On the basis of spectroscopic observations in the Mg I b1, Fe I 5434 A, and Na I D2 lines, 12 semiempirical models of sunspots of different sizes (r umbral radius, 2-8 arcsec) are constructed for several stages of their development. It is shown that the model of an umbra varies greatly with an increase in umbral radius up to a limiting value of 3.5-4 arcsec (Su = 7.5 MSH), after which the changes are small, and for a fixed umbral radius there is no significant difference between the models of sunspots in different phases of their development. 16 references.

  13. RSMASS system model development

    SciTech Connect (OSTI)

    Marshall, A.C.; Gallup, D.R.

    1998-07-01T23:59:59.000Z

    RSMASS system mass models have been used for more than a decade to make rapid estimates of space reactor power system masses. This paper reviews the evolution of the RSMASS models and summarizes present capabilities. RSMASS has evolved from a simple model used to make rough estimates of space reactor and shield masses to a versatile space reactor power system model. RSMASS uses unique reactor and shield models that permit rapid mass optimization calculations for a variety of space reactor power and propulsion systems. The RSMASS-D upgrade of the original model includes algorithms for the balance of the power system, a number of reactor and shield modeling improvements, and an automatic mass optimization scheme. The RSMASS-D suite of codes cover a very broad range of reactor and power conversion system options as well as propulsion and bimodal reactor systems. Reactor choices include in-core and ex-core thermionic reactors, liquid metal cooled reactors, particle bed reactors, and prismatic configuration reactors. Power conversion options include thermoelectric, thermionic, Stirling, Brayton, and Rankine approaches. Program output includes all major component masses and dimensions, efficiencies, and a description of the design parameters for a mass optimized system. In the past, RSMASS has been used as an aid to identify and select promising concepts for space power applications. The RSMASS modeling approach has been demonstrated to be a valuable tool for guiding optimization of the power system design; consequently, the model is useful during system design and development as well as during the selection process. An improved in-core thermionic reactor system model RSMASS-T is now under development. The current development of the RSMASS-T code represents the next evolutionary stage of the RSMASS models. RSMASS-T includes many modeling improvements and is planned to be more user-friendly. RSMASS-T will be released as a fully documented, certified code at the end of 1998. A radioisotope space power system model RISMASS is also under development. RISMASS will optimize and predict system masses for radioisotope power sources coupled with close-spaced thermionic diodes. Although RSMASS-D models have been developed for a broad variety of space nuclear power and propulsion systems, only a few concepts will be included in the releasable RSMASS-T computer code. A follow-on effort is recommended to incorporate all previous models as well as solar power system models into one general code. The proposed Space Power and propulsion system MASS (SPMASS) code would provide a consistent analysis tool for comparing a very broad range of alternative power and propulsion systems for any required power level and operating conditions. As for RSMASS-T the SPMASS model should be a certified, fully documented computer code available for general use. The proposed computer program would provide space mission planners with the capability to quickly and cost effectively explore power system options for any space mission. The code should be applicable for power requirements from as low as a few milliwatts (solar and isotopic system options) to many megawatts for reactor power and propulsion systems.

  14. Tilt-up concrete panels : an investigation of flexural stresses and punching shear during lifting

    E-Print Network [OSTI]

    Bono, Matthew P. (Matthew Paul)

    2011-01-01T23:59:59.000Z

    Tilt-up construction is becoming more popular in the United States due to its ease of construction, reliability, and relatively low construction and maintenance costs. In its most typical form, a concrete panel is cast on ...

  15. Hybrid Taxis Give Fuel Economy a Lift, Clean Cities, Fleet Experiences, April 2009 (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-04-01T23:59:59.000Z

    Clean Cities helped Boston, San Antonio, and Cambridge create hybrid taxi programs. The hybrid taxis are able to achieve about twice the gas mileage of a conventional taxi while helping cut gasoline use and fuel costs. Tax credits and other incentives are helping both company owners and drivers make the switch to hybrids. Program leaders have learned some important lessons other cities can benefit from including learning a city's taxi structure, relaying benefits to drivers, and understanding the needs of owners.

  16. astovl lift-fan aircraft: Topics by E-print Network

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

    Generation CiteSeer Summary: Many aircraft make use of an on-board oxygen generation system to provide breathing oxygen for the aircrew. Compared to historical experience, there...

  17. alta intensidad magnet-lift: Topics by E-print Network

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

    de Computacion Cientifica y Programacion Paralela http:luna.inf.um.esgrupo investigacion San Alberto, 14 noviembre 2014 Computacion de Altas Prestaciones San...

  18. Lifting and Transport of Saharan Dust J.R. Banks1

    E-Print Network [OSTI]

    Oxford, University of

    the European Centre for Medium- range Weather Forecasting (ECMWF) at a resolution of 1.125°), and by soil data* is the wind friction velocity, ut is the threshold friction velocity for particles of size Dp, and dSrel relates to the size distribution. There is no emission from the Sahara when the wind speed is less than

  19. Vehicle Technologies Office Merit Review 2014: Fuel Properties to Enable Lifted Flame Combustion

    Broader source: Energy.gov [DOE]

    Presentation given by Ford Motor Company at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about fuel properties to enable...

  20. -News Home Help No Big Arms Sales to China if Embargo Lifted-Chirac

    E-Print Network [OSTI]

    an international agreement if it has to. Japan wants it built in Rokkasho, a fishing village in northern Japan

  1. Spring 2002 ASME/API Gas Lift Workshop, February 5-6, 2002, Houston, Texas.

    E-Print Network [OSTI]

    Gudmundsson, Jon Steinar

    the fluid density, u (m/s) the fluid flowing velocity and a (m/s) the speed of sound in the fluid. The speed of sound in the fluid is equivalent to the propagation speed of the pressure pulse generated. A typical effective. The use of pressure pulse technology for production testing, giving production rate of gas-liquid

  2. The Effect of LIFT on Life Effectiveness and Locus of Control

    E-Print Network [OSTI]

    Merrell, Brian T.

    2010-07-14T23:59:59.000Z

    for actions and success. k) An individuals external locus of control occurs when an individual accepts that external issues control or determine success. 15 Assumptions Due to the nature and design of the research, certain assumptions were made when...

  3. Lifted Inequalities for 0?1 Mixed-Integer Bilinear Covering Sets?

    E-Print Network [OSTI]

    2011-03-01T23:59:59.000Z

    Mar 1, 2011 ... Cambridge University Press, 1988. 1393. [16] I. Harjunkoski, T. Westerlund, R. Porn, and H. Skrifvars. Different transformations for solving non-.

  4. Simulation of bristle tip lift-off in a brush seal

    E-Print Network [OSTI]

    Modi, Sandeep Subhash

    1995-01-01T23:59:59.000Z

    as to style and content by: David L. Rhode (Chair of Committee) Y. A. Hassan (Member) J. C. Han (Member) G. P. Peterson (Head of Department) May 1995 Major Subject: Mechanical Engineering ABSTRACT Simulation of Bristle Tip Lifl-off in a Brush Seal... and friendship. I especially appreciate his help in completing the FIDAP manual. I would also like to thank M. C. Sharatchandra for his time and assistance during the ininal stages of my research. I' ll never forget the support and friendship of my friends...

  5. Roll stabilization for fast monohulls by using passive and active lifting appendages

    E-Print Network [OSTI]

    Ulusoy, Talha

    2004-01-01T23:59:59.000Z

    Roll stabilization for monohulls is an important issue in naval architecture. Several methods including roll stabilization tanks, active control fins, rudder roll stabilization systems, and bilge keels are commonly used ...

  6. Comparison of Lifting and B-spline DWT Implementations for Implantable Neuroprosthetics.

    E-Print Network [OSTI]

    Mason, Andrew

    operations into less computationally intensive shift-and-add operations [3]. Recent efforts to optimize DWT}@msu.edu Abstract-- The discrete wavelet transform (DWT) has been shown to provide exceptionally efficient data compression for neural records. This paper describes area-power minimized hardware implementations

  7. Lift-and-Project Relaxations of AC Microgrid Distribution System Planning

    E-Print Network [OSTI]

    Taylor, Joshua A.

    2011-01-01T23:59:59.000Z

    We apply relaxation procedures to polynomial optimization problems that originate in transmission system planning, and obtain new convex formulations for the AC case. The approach is novel because the optimization is ...

  8. Lift-off performance in flexure pivot pad and hybrid bearings

    E-Print Network [OSTI]

    Mertz, David Hunter

    2009-05-15T23:59:59.000Z

    Three flexure pivot pad bearings (FPBs) with different preloads are evaluated for use in high performance applications by comparing them to a hybrid hydrostatic bearing (HHB). One application of these bearings is in turbopumps for liquid rocket...

  9. Failure Modes and Causes for Swing and Lift Type Check Valves

    Office of Scientific and Technical Information (OSTI)

    the stuck closed cases involved a stuck piston due to lodged foreign material andor corrosion particulate, generally from the system itself and often exacerbated by carbon steel...

  10. The Lifted Root Number Conjecture for elds of prime degree over the rationals

    E-Print Network [OSTI]

    Kuèera, Radan

    trees and Euler systems Cornelius Greither and Radan Ku#20; cera Introduction For any G-Galois extension

  11. PHYSIOLOGICAL ECOLOGY -ORIGINAL PAPER The effect of hydraulic lift on organic matter decomposition, soil

    E-Print Network [OSTI]

    Jackson, Robert B.

    for both, suggesting dif- ferential mineralization of organic N among treatments. Aboveground biomass, leaf, The University of Western Australia (M084), 35 Stirling Highway, Crawley, WA 6009, Australia 123 Oecologia (2012

  12. An enhanced propeller design program based on propeller vortex lattice lifting line theory

    E-Print Network [OSTI]

    Chung, Hsin-Lung

    2007-01-01T23:59:59.000Z

    A suite of propeller numerical design tools was developed in MATLAB®, a high-level technical computing language. The tools were based on the FORTRAN programs developed by Professor Justin Kerwin at MIT in 2001 and include ...

  13. Chapter 2.20 Msink20 Diamond Seeding & Lift-off (General Solvent Sink)

    E-Print Network [OSTI]

    Healy, Kevin Edward

    emptied a plastic or glass chemical bottle, make sure to use a safety carrier to transport in the event of exposure to chemicals. 8.4 Cleanup Procedure and Empty Bottle Disposal 8.4.1 Whenever you have), then dispose the bottle in the appropriate disposal bin in the same room 582A. 8.4.2.1 Refer to Chapter 2

  14. The cost of noise reduction for powered-lift S.T.O.L. aircraft

    E-Print Network [OSTI]

    Moore, Wesley F.

    1973-01-01T23:59:59.000Z

    The direct operating costs and noise impacts of a wide variety of Externally Blown Flap and Augmentor Wing STOL short haul transport aircraft designs were evaluated to study the costs of noise reduction for these types of ...

  15. Veil of secrecy is lifted from parts of Livermore's laser fusion program

    SciTech Connect (OSTI)

    Levi, B.G.

    1994-09-01T23:59:59.000Z

    Thanks to the [open quotes]openness initiative[close quotes] of Secretary Hazel O'Leary of the Department of Energy, results of experiments on inertial confinement done at the Nova facility at Lawrence Livermore National Laboratory will soon begin to be published in four papers dealing with such fundamental parameters as target size, material and cavity temperature. Livermore has concentrated on a particular scheme called indirect-drive ICF, in which the fuel pellet is placed inside a cylindrical cavity that has holes at both ends. This cavity is known as a hohlraum. Demonstrating the feasibility of indirect-drive ICF is expected to be a major focus of the National Ignition Facility, a proposed $1 billion project featuring a 1-2-MJ laser that is still awaiting the endorsement of the Department of Energy. 6 refs., 2 figs.

  16. Transient growth of secondary instabilities in parallel wakes: Anti lift-up mechanism and hyperbolic instability

    E-Print Network [OSTI]

    Boyer, Edmond

    and the transient growth of perturbations on a Von Ka´rma´n vortex street, issuing from the development (2006); 10.1063/1.2159031 Vortex shedding in high Reynolds number axisymmetric bluff-body wakes: Local, 295 (2007)] in the context of an axisymmetric vortex. Presently, the optimal initial condition (the

  17. air-lift water-pumping wind-turbines: Topics by E-print Network

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

    Kongens Lyngby 2012 IMM-MSc-2012-65 12;Summary Wind turbines are the biggest part of the green energy industry. Increasing interest control strategies. Control strategy has a...

  18. ACTIVE CONTROL STRATEGY FOR DENSITY-WAVE IN GAS-LIFTED WELLS

    E-Print Network [OSTI]

    (point A), then goes down into the annular space between the drilling pipe (casing, point B with possible facilities dam- ages. The best identified instability is the "casing- heading". It consists in the tubing at a given set-point. In practice, under the assumption of a constant well #12;head gas (in

  19. Case Study - The Challenge: Saving Energy at a Sewage Lift Station Through

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platformBuilding RemovalCSS Letter -SeptemberWorkshopby: AlanCasa Diablo09inPump

  20. Microsoft Word - PTFifthLiftWalls_20110629 Rev 1 _2_.doc

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE LMI-EFRCAddendum 1April1 Page3

  1. Fuel Cell Lift Trucks: A Grocer's Best Friend | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdfTechnologies Program (FCTP) (Fact Sheet)UTCLift Trucks: A

  2. Accident Investigation of the February 7, 2013, Scissor Lift Accident in

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015ofDepartmentDepartment of2 of 5)Department of Energy In

  3. L3:THM.P9.03 Integrated Lift- and Wall-

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron beamJoin2015JustKateKent52 J.N.P6.036P4.023

  4. Adaptive Detached Eddy Simulation of a High Lift Wing with Active Flow

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWP Related LinksATHENA AccountManagement |ARQ AAdYoung GuestControl

  5. Failure Modes and Causes for Swing and Lift Type Check Valves

    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. Category UC-lFederalFYRANDOMFailure Modes and Causes for Swing

  6. Case Study - The Challenge: Saving Energy at a Sewage Lift Station Through

    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: Theof Energy Change RequestFirst ReportResourceCarlsbad2SiouxDepartment ofPump

  7. A Nuclear Family: Lifting The Veil | Y-12 National Security Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch >InternshipDepartmentNeutrino-Induced Charged-CurrentN N U A L

  8. Alternative Fuels Data Center: CNG Refuse Haulers Do Heavy Lifting in New

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

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

  9. Artificial Lift Systems Market is expected to reach USD 19,806.8 Million by

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcatAntrimArkansas County,Minnesota:Arthur, North Dakota:2020 |

  10. The Tilt Intonation Model 

    E-Print Network [OSTI]

    Taylor, Paul

    The tilt intonation model facilitates automatic analysis and synthesis of intonation. The analysis algorithm detects intonational events in F0 contours and parameterises them in terms of the continuously varying parameters. ...

  11. Mathematical Modeling Arnold Neumaier

    E-Print Network [OSTI]

    Neumaier, Arnold

    · Blood circulation models 4 #12;Meteorology · Weather prediction · Climate prediction (global warming (genetic variability) Chemical engineering · Chemical equilibrium · Planning of production units Chemistry recognition · Face recognition Economics · Labor data analysis Electrical engineering · Stability of electric

  12. Sandia National Laboratories: Modeling

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

    to address the most challenging and demanding climate-change issues. Accelerated Climate Modeling for Energy (ACME) is designed to accel-erate the development and applica-tion of...

  13. Statistical Language Modelling 

    E-Print Network [OSTI]

    Gotoh, Yoshihiko; Renals, Steve

    2003-01-01T23:59:59.000Z

    the underlying models from large amounts of data. Importantly, such statistical approaches often produce useful results. Statistical approaches seem especially well-suited to spoken language which is often spontaneous or conversational and not readily amenable...

  14. Supersymmetric sigma models

    SciTech Connect (OSTI)

    Bagger, J.A.

    1984-09-01T23:59:59.000Z

    We begin to construct the most general supersymmetric Lagrangians in one, two and four dimensions. We find that the matter couplings have a natural interpretation in the language of the nonlinear sigma model.

  15. Mathematical Modeling Arnold Neumaier

    E-Print Network [OSTI]

    Neumaier, Arnold

    units Chemistry #15; Chemical reaction dynamics #15; Molecular modeling #15; Electronic structure Biology #15; Protein folding #15; Humane genome project 2 #12; #15; Population dynamics #15; Morphogenesis calculations Computer science #15; Image processing #15; Realistic computer graphics (ray tracing

  16. Modeling Diverse Communities of

    E-Print Network [OSTI]

    Follows, Mick

    , Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139. Such models are suited to considering ecological questions, such as the regulation of patterns of biodiversity). Microbial community structure, in turn, regulates the environment and biogeochemical pathways including

  17. Wire and column modeling

    E-Print Network [OSTI]

    Mandal, Esan

    2004-09-30T23:59:59.000Z

    The goal of this thesis is to introduce new methods to create intricate perforated shapes in a computing environment. Modeling shapes with a large number of holes and handles, while requiring minimal human interaction, is an unsolved research...

  18. Morphological modeling of neurons

    E-Print Network [OSTI]

    Mulchandani, Kishore

    1995-01-01T23:59:59.000Z

    generation of dendritic and axonal trees are defined. Experiments with various stochastic L-system models for pyramidal, motoneuron, and Purkinje cells are reported which generate synthetic neurons with promising proximity to neurons in the neurobiology...

  19. Introduction Model Fitting

    E-Print Network [OSTI]

    Albert, Réka

    susceptibility to disease is homogenous across the network degree distribution is roughly symmetric much the network highly skewed distribution of contacts (follows a discretized Weibull distribution) most nodesIntroduction ERGM Model Fitting Simulation References Using social network characteristics

  20. Refining climate models

    ScienceCinema (OSTI)

    Warren, Jeff; Iversen, Colleen; Brooks, Jonathan; Ricciuto, Daniel

    2014-06-26T23:59:59.000Z

    Using dogwood trees, Oak Ridge National Laboratory researchers are gaining a better understanding of the role photosynthesis and respiration play in the atmospheric carbon dioxide cycle. Their findings will aid computer modelers in improving the accuracy of climate simulations.

  1. Refining climate models

    SciTech Connect (OSTI)

    Warren, Jeff; Iversen, Colleen; Brooks, Jonathan; Ricciuto, Daniel

    2012-10-31T23:59:59.000Z

    Using dogwood trees, Oak Ridge National Laboratory researchers are gaining a better understanding of the role photosynthesis and respiration play in the atmospheric carbon dioxide cycle. Their findings will aid computer modelers in improving the accuracy of climate simulations.

  2. SUSY GUT Model Building

    E-Print Network [OSTI]

    Stuart Raby

    2008-08-27T23:59:59.000Z

    I discuss an evolution of SUSY GUT model building, starting with the construction of 4d GUTs, to orbifold GUTs and finally to orbifold GUTs within the heterotic string. This evolution is an attempt to obtain realistic string models, perhaps relevant for the LHC. This review is in memory of the sudden loss of Julius Wess, a leader in the field, who will be sorely missed.

  3. Improved steamflood analytical model

    E-Print Network [OSTI]

    Chandra, Suandy

    2006-10-30T23:59:59.000Z

    two field cases, a 45x23x8 model was used that represented 1/8 of a 10-acre 5-spot pattern unit, using typical rock and reservoir fluid properties. In the SPE project case, three models were used: 23x12x12 (2.5 ac), 31x16x12 (5 ac) and 45x23x8 (10 ac...

  4. Theory Modeling and Simulation

    SciTech Connect (OSTI)

    Shlachter, Jack [Los Alamos National Laboratory

    2012-08-23T23:59:59.000Z

    Los Alamos has a long history in theory, modeling and simulation. We focus on multidisciplinary teams that tackle complex problems. Theory, modeling and simulation are tools to solve problems just like an NMR spectrometer, a gas chromatograph or an electron microscope. Problems should be used to define the theoretical tools needed and not the other way around. Best results occur when theory and experiments are working together in a team.

  5. Generic CSP Performance Model for NREL's System Advisor Model: Preprint

    SciTech Connect (OSTI)

    Wagner, M. J.; Zhu, G.

    2011-08-01T23:59:59.000Z

    The suite of concentrating solar power (CSP) modeling tools in NREL's System Advisor Model (SAM) includes technology performance models for parabolic troughs, power towers, and dish-Stirling systems. Each model provides the user with unique capabilities that are catered to typical design considerations seen in each technology. Since the scope of the various models is generally limited to common plant configurations, new CSP technologies, component geometries, and subsystem combinations can be difficult to model directly in the existing SAM technology models. To overcome the limitations imposed by representative CSP technology models, NREL has developed a 'Generic Solar System' (GSS) performance model for use in SAM. This paper discusses the formulation and performance considerations included in this model and verifies the model by comparing its results with more detailed models.

  6. Modeling Science David M. Blei

    E-Print Network [OSTI]

    Blei, David M.

    Modeling Science David M. Blei Department of Computer Science Princeton University April 17, 2008 Joint work with John Lafferty (CMU) D. Blei Modeling Science 1 / 53 #12;Modeling Science Science, August called topic models. · Use this structure for browsing, search, and similarity. D. Blei Modeling Science

  7. Quantum Semiconductor Modeling Ansgar Jungel

    E-Print Network [OSTI]

    Jüngel, Ansgar

    Quantum Semiconductor Modeling Ansgar J¨ungel Vienna University of Technology, Austria www.jungel.at.vu Ansgar J¨ungel (TU Wien) Quantum Semiconductor Modeling www.jungel.at.vu 1 / 154 #12;Contents 1 Introduction 2 Semiconductor modeling 3 Microscopic quantum models Density matrices Schr¨odinger models Wigner

  8. Learning planar ising models

    SciTech Connect (OSTI)

    Johnson, Jason K [Los Alamos National Laboratory; Chertkov, Michael [Los Alamos National Laboratory; Netrapalli, Praneeth [STUDENT UT AUSTIN

    2010-11-12T23:59:59.000Z

    Inference and learning of graphical models are both well-studied problems in statistics and machine learning that have found many applications in science and engineering. However, exact inference is intractable in general graphical models, which suggests the problem of seeking the best approximation to a collection of random variables within some tractable family of graphical models. In this paper, we focus our attention on the class of planar Ising models, for which inference is tractable using techniques of statistical physics [Kac and Ward; Kasteleyn]. Based on these techniques and recent methods for planarity testing and planar embedding [Chrobak and Payne], we propose a simple greedy algorithm for learning the best planar Ising model to approximate an arbitrary collection of binary random variables (possibly from sample data). Given the set of all pairwise correlations among variables, we select a planar graph and optimal planar Ising model defined on this graph to best approximate that set of correlations. We present the results of numerical experiments evaluating the performance of our algorithm.

  9. Beyond the Standard Model

    SciTech Connect (OSTI)

    Lykken, Joseph D.; /Fermilab

    2010-05-01T23:59:59.000Z

    'BSM physics' is a phrase used in several ways. It can refer to physical phenomena established experimentally but not accommodated by the Standard Model, in particular dark matter and neutrino oscillations (technically also anything that has to do with gravity, since gravity is not part of the Standard Model). 'Beyond the Standard Model' can also refer to possible deeper explanations of phenomena that are accommodated by the Standard Model but only with ad hoc parameterizations, such as Yukawa couplings and the strong CP angle. More generally, BSM can be taken to refer to any possible extension of the Standard Model, whether or not the extension solves any particular set of puzzles left unresolved in the SM. In this general sense one sees reference to the BSM 'theory space' of all possible SM extensions, this being a parameter space of coupling constants for new interactions, new charges or other quantum numbers, and parameters describing possible new degrees of freedom or new symmetries. Despite decades of model-building it seems unlikely that we have mapped out most of, or even the most interesting parts of, this theory space. Indeed we do not even know what is the dimensionality of this parameter space, or what fraction of it is already ruled out by experiment. Since Nature is only implementing at most one point in this BSM theory space (at least in our neighborhood of space and time), it might seem an impossible task to map back from a finite number of experimental discoveries and measurements to a unique BSM explanation. Fortunately for theorists the inevitable limitations of experiments themselves, in terms of resolutions, rates, and energy scales, means that in practice there are only a finite number of BSM model 'equivalence classes' competing at any given time to explain any given set of results. BSM phenomenology is a two-way street: not only do experimental results test or constrain BSM models, they also suggest - to those who get close enough to listen - new directions for BSM model building. Contrary to popular shorthand jargon, supersymmetry (SUSY) is not a BSM model: it is a symmetry principle characterizing a BSM framework with an infinite number of models. Indeed we do not even know the full dimensionality of the SUSY parameter space, since this presumably includes as-yet-unexplored SUSY-breaking mechanisms and combinations of SUSY with other BSM principles. The SUSY framework plays an important role in BSM physics partly because it includes examples of models that are 'complete' in the same sense as the Standard Model, i.e. in principle the model predicts consequences for any observable, from cosmology to b physics to precision electroweak data to LHC collisions. Complete models, in addition to being more explanatory and making connections between diverse phenomena, are also much more experimentally constrained than strawman scenarios that focus more narrowly. One sometimes hears: 'Anything that is discovered at the LHC will be called supersymmetry.' There is truth behind this joke in the sense that the SUSY framework incorporates a vast number of possible signatures accessible to TeV colliders. This is not to say that the SUSY framework is not testable, but we are warned that one should pay attention to other promising frameworks, and should be prepared to make experimental distinctions between them. Since there is no formal classification of BSM frameworks I have invented my own. At the highest level there are six parent frameworks: (1) Terascale supersymmetry; (2) PNGB Higgs; (3) New strong dynamics; (4) Warped extra dimensions; (5) Flat extra dimensions; and (6) Hidden valleys. Here is the briefest possible survey of each framework, with the basic idea, the generic new phenomena, and the energy regime over which the framework purports to make comprehensive predictions.

  10. book review: Species distribution models for species distribution modellers

    E-Print Network [OSTI]

    Dormann, Carsten F

    2012-01-01T23:59:59.000Z

    Mapping  species  distributions:  spa? tial inference and news and update  book review  Species distribution models for species distribution modellers  Ecological niches and 

  11. Conceptual Geologic Model and Native State Model of the Roosevelt...

    Open Energy Info (EERE)

    Springs Hydrothermal System Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Conceptual Geologic Model and Native State Model of the...

  12. Data Modeling and Theory Construction

    E-Print Network [OSTI]

    Jan de Leeuw

    2011-01-01T23:59:59.000Z

    MODELING AND THEORY CONSTRUCTION F. Suppe. The Structure ofMODELING AND THEORY CONSTRUCTION JAN DE LEEUW This paper wasMODELING AND THEORY CONSTRUCTION F????? 1. The Scientist

  13. Foothills Model Forest Business Strategy

    E-Print Network [OSTI]

    Foothills Model Forest Business Strategy 2007 ­ 2012 November 2006 #12;Page ii TABLE OF CONTENTS FOOTHILLS MODEL FOREST Business Strategy for April 2007 to March 2012 1.0 INTRODUCTION....................................................................................................................... 4 2.4 Foothills Model Forest Values

  14. Modal aerosol dynamics modeling

    SciTech Connect (OSTI)

    Whitby, E.R.; McMurry, P.H.; Shankar, U.; Binkowski, F.S.

    1991-02-01T23:59:59.000Z

    The report presents the governing equations for representing aerosol dynamics, based on several different representations of the aerosol size distribution. Analytical and numerical solution techniques for these governing equations are also reviewed. Described in detail is a computationally efficient numerical technique for simulating aerosol behavior in systems undergoing simultaneous heat transfer, fluid flow, and mass transfer in and between the gas and condensed phases. The technique belongs to a general class of models known as modal aerosol dynamics (MAD) models. These models solve for the temporal and spatial evolution of the particle size distribution function. Computational efficiency is achieved by representing the complete aerosol population as a sum of additive overlapping populations (modes), and solving for the time rate of change of integral moments of each mode. Applications of MAD models for simulating aerosol dynamics in continuous stirred tank aerosol reactors and flow aerosol reactors are provided. For the application to flow aerosol reactors, the discussion is developed in terms of considerations for merging a MAD model with the SIMPLER routine described by Patankar (1980). Considerations for incorporating a MAD model into the U.S. Environmental Protection Agency's Regional Particulate Model are also described. Numerical and analytical techniques for evaluating the size-space integrals of the modal dynamics equations (MDEs) are described. For multimodal logonormal distributions, an analytical expression for the coagulation integrals of the MDEs, applicable for all size regimes, is derived, and is within 20% of accurate numerical evaluation of the same moment coagulation integrals. A computationally efficient integration technique, based on Gauss-Hermite numerical integration, is also derived.

  15. From Logical to Distributional Models

    E-Print Network [OSTI]

    Anne Preller

    2014-12-30T23:59:59.000Z

    The paper relates two variants of semantic models for natural language, logical functional models and compositional distributional vector space models, by transferring the logic and reasoning from the logical to the distributional models. The geometrical operations of quantum logic are reformulated as algebraic operations on vectors. A map from functional models to vector space models makes it possible to compare the meaning of sentences word by word.

  16. Optimal linear Glauber model

    E-Print Network [OSTI]

    Shaon Sahoo; Soumya Kanti Ganguly

    2015-02-01T23:59:59.000Z

    Contrary to the actual nonlinear Glauber model (NLGM), the linear Glauber model (LGM) is exactly solvable, although the detailed balance condition is not generally satisfied. This motivates us to address the issue of writing the transition rate ($w_j$) in a best possible linear form such that the mean squared error in satisfying the detailed balance condition is least. The advantage of this work is that, by studying the LGM analytically, we will be able to anticipate how the kinetic properties of an arbitrary Ising system depend on the temperature and the coupling constants. The analytical expressions for the optimal values of the parameters involved in the linear $w_j$ are obtained using a simple Moore-Penrose pseudoinverse matrix. This approach is quite general, in principle applicable to any system and can reproduce the exact results for one dimensional Ising system. In the continuum limit, we get a linear time-dependent Ginzburg-Landau (TDGL) equation from the Glauber's microscopic model of non-conservative dynamics. We analyze the critical and dynamic properties of the model, and show that most of the important results obtained in different studies can be reproduced by our new mathematical approach. We will also show in this paper that the effect of magnetic field can easily be studied within our approach; in particular, we show that the inverse of relaxation time changes quadratically with (weak) magnetic field and that the fluctuation-dissipation theorem is valid for our model.

  17. Advanced Chemistry Basins Model

    SciTech Connect (OSTI)

    Blanco, Mario; Cathles, Lawrence; Manhardt, Paul; Meulbroek, Peter; Tang, Yongchun

    2003-02-13T23:59:59.000Z

    The objective of this project is to: (1) Develop a database of additional and better maturity indicators for paleo-heat flow calibration; (2) Develop maturation models capable of predicting the chemical composition of hydrocarbons produced by a specific kerogen as a function of maturity, heating rate, etc.; assemble a compositional kinetic database of representative kerogens; (3) Develop a 4 phase equation of state-flash model that can define the physical properties (viscosity, density, etc.) of the products of kerogen maturation, and phase transitions that occur along secondary migration pathways; (4) Build a conventional basin model and incorporate new maturity indicators and data bases in a user-friendly way; (5) Develop an algorithm which combines the volume change and viscosities of the compositional maturation model to predict the chemistry of the hydrocarbons that will be expelled from the kerogen to the secondary migration pathways; (6) Develop an algorithm that predicts the flow of hydrocarbons along secondary migration pathways, accounts for mixing of miscible hydrocarbon components along the pathway, and calculates the phase fractionation that will occur as the hydrocarbons move upward down the geothermal and fluid pressure gradients in the basin; and (7) Integrate the above components into a functional model implemented on a PC or low cost workstation.

  18. Testing Model Nesting and Equivalence

    E-Print Network [OSTI]

    Peter M. Bentler; Albert Satorra

    2011-01-01T23:59:59.000Z

    sense of observational equivalence, implying that theirModel Nesting and Equivalence* Peter M. Bentler UniversityModel Nesting and Equivalence Using existing technology, it

  19. Testing Model Nesting and Equivalence

    E-Print Network [OSTI]

    Bentler, Peter M.; Satorra, Albert

    2008-01-01T23:59:59.000Z

    sense of observational equivalence, implying that theirModel Nesting and Equivalence* Peter M. Bentler UniversityModel Nesting and Equivalence Using existing technology, it

  20. Sandia National Laboratories: Modeling & Analysis

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

    from improved climate models to performance models for underground waste storage to 3D printing and digital rock physics. Marianne Walck (Director ... NASA Award for Marginal...

  1. Modelling Quintessential Inflation with Branes

    E-Print Network [OSTI]

    Konstantinos Dimopoulos

    2002-10-17T23:59:59.000Z

    I discuss why quintessential inflation model-building is more natural in the context of brane cosmology and study the dynamics of a particular model as an example.

  2. Exponential Family Random Network Models

    E-Print Network [OSTI]

    Fellows, Ian

    2012-01-01T23:59:59.000Z

    second block model nodal attributes, and the last are joint.second block model nodal attributes, and the last are joint.

  3. Sandia National Laboratories: Modeling & Analysis

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

    society and delivers resources that advance computing as a science ... Wind Generator Modeling On June 26, 2014, in Computational Modeling & Simulation, Energy, Energy...

  4. Sandia National Laboratories: Modeling & Analysis

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

    Sandia Study Shows Large LNG Fires Hotter but Smaller Than Expected On December 6, 2011, in Analysis, Energy Assurance, Infrastructure Security, Modeling, Modeling & Analysis,...

  5. Simple ocean carbon cycle models

    SciTech Connect (OSTI)

    Caldeira, K. [Lawrence Livermore National Lab., CA (United States); Hoffert, M.I. [New York Univ., NY (United States). Dept. of Earth System Sciences; Siegenthaler, U. [Bern Univ. (Switzerland). Inst. fuer Physik

    1994-02-01T23:59:59.000Z

    Simple ocean carbon cycle models can be used to calculate the rate at which the oceans are likely to absorb CO{sub 2} from the atmosphere. For problems involving steady-state ocean circulation, well calibrated ocean models produce results that are very similar to results obtained using general circulation models. Hence, simple ocean carbon cycle models may be appropriate for use in studies in which the time or expense of running large scale general circulation models would be prohibitive. Simple ocean models have the advantage of being based on a small number of explicit assumptions. The simplicity of these ocean models facilitates the understanding of model results.

  6. Ocean General Circulation Models

    SciTech Connect (OSTI)

    Yoon, Jin-Ho; Ma, Po-Lun

    2012-09-30T23:59:59.000Z

    1. Definition of Subject The purpose of this text is to provide an introduction to aspects of oceanic general circulation models (OGCMs), an important component of Climate System or Earth System Model (ESM). The role of the ocean in ESMs is described in Chapter XX (EDITOR: PLEASE FIND THE COUPLED CLIMATE or EARTH SYSTEM MODELING CHAPTERS). The emerging need for understanding the Earth’s climate system and especially projecting its future evolution has encouraged scientists to explore the dynamical, physical, and biogeochemical processes in the ocean. Understanding the role of these processes in the climate system is an interesting and challenging scientific subject. For example, a research question how much extra heat or CO2 generated by anthropogenic activities can be stored in the deep ocean is not only scientifically interesting but also important in projecting future climate of the earth. Thus, OGCMs have been developed and applied to investigate the various oceanic processes and their role in the climate system.

  7. A Quantum Production Model

    E-Print Network [OSTI]

    Luís Tarrataca; Andreas Wichert

    2015-02-06T23:59:59.000Z

    The production system is a theoretical model of computation relevant to the artificial intelligence field allowing for problem solving procedures such as hierarchical tree search. In this work we explore some of the connections between artificial intelligence and quantum computation by presenting a model for a quantum production system. Our approach focuses on initially developing a model for a reversible production system which is a simple mapping of Bennett's reversible Turing machine. We then expand on this result in order to accommodate for the requirements of quantum computation. We present the details of how our proposition can be used alongside Grover's algorithm in order to yield a speedup comparatively to its classical counterpart. We discuss the requirements associated with such a speedup and how it compares against a similar quantum hierarchical search approach.

  8. Stochastic Modeling Techniques: Understanding and using hidden Markov models

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Tutorial Stochastic Modeling Techniques: Understanding and using hidden Markov models Leslie Grate¨olander kimmen@cse.ucsc.edu 1 #12; Contents 1 Introduction 3 2 Mathematical Foundations of Stochastic Models 4 2 : : : : : : : : : : : : : : : : : : : : : : : : : : 27 7 Validating a model 30 8 Local HMM installation 31 8.1 Obtaining SAM and HMMer

  9. ORQA: Modeling Energy and Quality of Service within AUTOSAR Models

    E-Print Network [OSTI]

    Boyer, Edmond

    Systems]: Consumer Products--electric vehicle General Terms Design, Management Keywords Autosar, model the vehicle autonomy. A vehicle management is achieved by the em- bedded systems, modeled following-oriented Quality of Ser- vice models. This paper presents Orqa, a framework to model and manage the electric

  10. High School Students' Modeling Knowledge High School Students' Modeling Knowledge

    E-Print Network [OSTI]

    High School Students' Modeling Knowledge High School Students' Modeling Knowledge David Fortus of the authors. #12;High School Students' Modeling Knowledge Abstract Modeling is a core scientific practice a learning progression for this practice, focusing on the late elementary and early middle school years

  11. Business surveys modelling with Seasonal-Cyclical Long Memory models

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Business surveys modelling with Seasonal-Cyclical Long Memory models Ferrara L. and Guégan D. 2nd business surveys released by the European Commission. We introduce an innovative way for modelling those linear models. Keywords: Euro area, nowcasting, business surveys, seasonal, long memory. JEL

  12. Ecological Modelling 192 (2006) 143159 Nitrogen transformation and transport modeling

    E-Print Network [OSTI]

    Clement, Prabhakar

    model; Transformation; Transport; Nitrification; Denitrification; RT3D 1. Introduction Nitrogen of this paper are to develop a nitro- gen transport and transformation model for saturated groundwater systemsEcological Modelling 192 (2006) 143­159 Nitrogen transformation and transport modeling

  13. Model Structure Analysis for Model-based Operation of

    E-Print Network [OSTI]

    Van den Hof, Paul

    conducted in the framework of the "Integrated System Approach Petroleum Production" (ISAPP) programmeModel Structure Analysis for Model-based Operation of Petroleum Reservoirs #12;#12;MODEL STRUCTURE ANALYSIS FOR MODEL-BASED OPERATION OF PETROLEUM RESERVOIRS PROEFSCHRIFT ter verkrijging van de graad van

  14. Travel Demand Modeling

    SciTech Connect (OSTI)

    Southworth, Frank [ORNL; Garrow, Dr. Laurie [Georgia Institute of Technology

    2011-01-01T23:59:59.000Z

    This chapter describes the principal types of both passenger and freight demand models in use today, providing a brief history of model development supported by references to a number of popular texts on the subject, and directing the reader to papers covering some of the more recent technical developments in the area. Over the past half century a variety of methods have been used to estimate and forecast travel demands, drawing concepts from economic/utility maximization theory, transportation system optimization and spatial interaction theory, using and often combining solution techniques as varied as Box-Jenkins methods, non-linear multivariate regression, non-linear mathematical programming, and agent-based microsimulation.

  15. Wire and column modeling 

    E-Print Network [OSTI]

    Mandal, Esan

    2004-09-30T23:59:59.000Z

    space and is a Hausdorff space. One such example is the surface of a 10 sphere such as Earth, which is not a plane, but small patches of it are homeomorphic to (i.e., topologically equivalent to) patches of the Euclidean plane. 3. 2-Manifold A 2-manifold... . . . . . . . . . . . . . . . . . . . . 25 III.1.1. Doo-Sabin modification in Wire modeling . . . . . . . 25 III.1.2. Rind modeling integration . . . . . . . . . . . . . . . 27 III.1.3. Dimension control of the 3D pipes . . . . . . . . . . 30 III.1.4. Self...

  16. Transport Model with Quasipions

    E-Print Network [OSTI]

    Xiong, L.; Ko, Che Ming; Koch, V.

    1993-01-01T23:59:59.000Z

    , the transport model that takes into account both nucleon-nucleon collisions and the nuclear mean-field po- tential (normally called the Ulasov-Uehling-Uhlenbeck or Boltzmann-Uehling-Uhlenbeck model [3]) have been ex- tended to include the pion degree... equation, the pion collision term is obtained from the imaginary part of its self-energy. In nuclear medium, the pion self-energy is modified by the strong p-wave pion- nucleon interaction. This not only afFects the production and absorption of the pion...

  17. Modeling of buried explosions

    SciTech Connect (OSTI)

    Gaffney, E.S.; Wohletz, K.H.; House, J.W.; Brown, J.A.

    1987-01-01T23:59:59.000Z

    Los Alamos National Laboratory has been and continues developing techniques for modeling buried explosions using a large geotechnical centrifuge. When fully developed, the techniques should permit the accurate modeling of large explosions in complex geometries. Our intentional application is to study the phenomena of explosive cavity formation and collapse. However, the same methods should also be applicable to simulation of bursts shallow enough to produce craters, and perhaps even of airbursts in situations where soil overburden is important. We have placed primary emphasis on test bed construction methods and on accurate measurement of the ground shock produced by the explosions. 8 refs., 7 figs.

  18. Modeling & Simulation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1 SECTION A.Model Verification and ValidationModeling

  19. Estimation of Two Popular Econometric Models: Random Effects Panel Data Model and Simultaneous Equations Model

    E-Print Network [OSTI]

    Liu, Yue

    2013-01-01T23:59:59.000Z

    1994. [9] Greene, W. B. , Econometric Analysis, Pearson /and Semiparametric Panel Econometric Models: Estimation andDEPendent models. This econometric software package was

  20. Some Remarks on the Model Theory of Epistemic Plausibility Models

    E-Print Network [OSTI]

    Demey, Lorenz

    2010-01-01T23:59:59.000Z

    Classical logics of knowledge and belief are usually interpreted on Kripke models, for which a mathematically well-developed model theory is available. However, such models are inadequate to capture dynamic phenomena. Therefore, epistemic plausibility models have been introduced. Because these are much richer structures than Kripke models, they do not straightforwardly inherit the model-theoretical results of modal logic. Therefore, while epistemic plausibility structures are well-suited for modeling purposes, an extensive investigation of their model theory has been lacking so far. The aim of the present paper is to fill exactly this gap, by initiating a systematic exploration of the model theory of epistemic plausibility models. Like in 'ordinary' modal logic, the focus will be on the notion of bisimulation. We define various notions of bisimulations (parametrized by a language L) and show that L-bisimilarity implies L-equivalence. We prove a Hennesy-Milner type result, and also two undefinability results. ...

  1. Optimization Online - Optimization Software and Modeling Systems ...

    E-Print Network [OSTI]

    Optimization Software and Modeling Systems Submissions - 2009. March 2009. Modeling Languages and Systems A Structure-Conveying Modelling Language ...

  2. Combustion Models in Finance

    E-Print Network [OSTI]

    C. Tannous; A. Fessant

    2001-01-07T23:59:59.000Z

    Combustion reaction kinetics models are used for the description of a special class of bursty Financial Time Series. The small number of parameters they depend upon enable financial analysts to predict the time as well as the magnitude of the jump of the value of the portfolio. Several Financial Time Series are analysed within this framework and applications are given.

  3. Rheological Model for Wood

    E-Print Network [OSTI]

    Mohammad Masoud Hassani; Falk K. Wittel; Stefan Hering; Hans J. Herrmann

    2014-10-15T23:59:59.000Z

    Wood as the most important natural and renewable building material plays an important role in the construction sector. Nevertheless, its hygroscopic character basically affects all related mechanical properties leading to degradation of material stiffness and strength over the service life. Accordingly, to attain reliable design of the timber structures, the influence of moisture evolution and the role of time- and moisture-dependent behaviors have to be taken into account. For this purpose, in the current study a 3D orthotropic elasto-plastic, visco-elastic, mechano-sorptive constitutive model for wood, with all material constants being defined as a function of moisture content, is presented. The corresponding numerical integration approach, with additive decomposition of the total strain is developed and implemented within the framework of the finite element method (FEM). Moreover to preserve a quadratic rate of asymptotic convergence the consistent tangent operator for the whole model is derived. Functionality and capability of the presented material model are evaluated by performing several numerical verification simulations of wood components under different combinations of mechanical loading and moisture variation. Additionally, the flexibility and universality of the introduced model to predict the mechanical behavior of different species are demonstrated by the analysis of a hybrid wood element. Furthermore, the proposed numerical approach is validated by comparisons of computational evaluations with experimental results.

  4. Bioreactors Modeling and Control

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    Bioreactors Modeling and Control: Dealing with Complexity Dep. Of Chemical Engineering ­ Federal ­ Federal University of São Carlos ­ Brazil 1 DEQDEQ #12;First things first: What is a bio-reactor, anyway - Bioreactors: · Enzymatic reactors · Cultivation of microorganisms/cells ("fermenters") ThyssenKrupp Stainless

  5. ``chawlas'' Modeling Spatial

    E-Print Network [OSTI]

    Shekhar, Shashi

    ``chawlas'' 2001/2/2 page 1 i i i i i i i i Modeling Spatial Dependencies for Mining Geospatial data sets. These organizations are spread across many domains including ecology and envi­ ronment mining algorithms[1] often make assumptions (e.g. independent, identical distributions) which violate

  6. Grandpa Top Model

    E-Print Network [OSTI]

    Hacker, Randi

    2013-02-20T23:59:59.000Z

    clothes in a photo shoot cancelled. Grandpa Liu tried on a jacket and liked its style. So his granddaughter took photos of him in it and other items of clothing, posted them and China's next top model was created. Filial pietists accuse Ting of elder...

  7. Modeling the earth system

    SciTech Connect (OSTI)

    Ojima, D. [ed.

    1992-12-31T23:59:59.000Z

    The 1990 Global Change Institute (GCI) on Earth System Modeling is the third of a series organized by the Office for Interdisciplinary Earth Studies to look in depth at particular issues critical to developing a better understanding of the earth system. The 1990 GCI on Earth System Modeling was organized around three themes: defining critical gaps in the knowledge of the earth system, developing simplified working models, and validating comprehensive system models. This book is divided into three sections that reflect these themes. Each section begins with a set of background papers offering a brief tutorial on the subject, followed by working group reports developed during the institute. These reports summarize the joint ideas and recommendations of the participants and bring to bear the interdisciplinary perspective that imbued the institute. Since the conclusion of the 1990 Global Change Institute, research programs, nationally and internationally, have moved forward to implement a number of the recommendations made at the institute, and many of the participants have maintained collegial interactions to develop research projects addressing the needs identified during the two weeks in Snowmass.

  8. uncorrectedproof Biomech Model Mechanobiol

    E-Print Network [OSTI]

    Shreiber, David I.

    data from8 indentation, using microspheres as indenters, of synthetic9 rubber-like gels, native mouse the synthetic gels. The Hertz model proved to be acceptable14 for the synthetic gels at small deformations at small strains and rubber elasticity theory at both small 28 and large strains. For polymer gels

  9. Gas Kick Mechanistic Model

    E-Print Network [OSTI]

    Zubairy, Raheel

    2014-04-18T23:59:59.000Z

    -gain and temperature profile in the annulus. This research focuses on these changes in these parameters to be able to detect the occurrence of gas kick and the circulation of the gas kick out from the well. In this thesis, we have developed a model that incorporates...

  10. DYNAMIC MODELING FUEL PROCESSORS

    E-Print Network [OSTI]

    Mease, Kenneth D.

    turbine module (compressor and turbine sub-modules) Catalytic oxidizer Combustor module Heat exchanger, PEM, Gas Turbine General Model Assumptions · 1D process flow · Well-stirred within nodal volume · Slow reactants #12;Steam Reformation ­ Occurs in Reformer and Fuel Cells Methane reformation reaction Water Gas

  11. Multidimensional Model Programming

    E-Print Network [OSTI]

    Hunt, Galen

    #12;Multidimensional Model Programming SQL Server 2012 Books Online Summary: Analysis Services provides several APIs that you can use to program against an Analysis Services instance this information to choose the programming interface that best meets the requirements of a particular project

  12. Computer aided nuclear reactor modeling

    E-Print Network [OSTI]

    Warraich, Khalid Sarwar

    1995-01-01T23:59:59.000Z

    after model has been sent to CENTAR). We then present an interactive, graphical, icon based modeling program, Alpha, that lets the user "draw" the model on screen and translates it into a syn tactically correct CENTAR input model which is also free...

  13. Jobs and Economic Development Modeling

    Broader source: Energy.gov [DOE]

    Project objective: Develop models to estimate jobs and economic impacts from geothermal project development and operation.

  14. LAGRANGIAN COORDINATES AND MULTICLASS MODELS

    E-Print Network [OSTI]

    Vuik, Kees

    LAGRANGIAN COORDINATES AND MULTICLASS MODELS The kinematic wave model, also known as the Lighthill. introduced a kinematic wave model with multiple user classes (7). They show qualitatively Formulation of Multiclass Kinematic Wave Model Femke van Wageningen-Kessels, Hans van Lint, Serge P

  15. Sandia National Laboratories: modeling and simulation

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

    and simulation Sandian Mark Boslough Featured on NOVA Episode about Chelyabinsk Meteor On November 20, 2013, in Computational Modeling & Simulation, Modeling, Modeling, Modeling &...

  16. Sandia National Laboratories: Modeling and Analysis

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

    Modeling and Analysis Sandian Mark Boslough Featured on NOVA Episode about Chelyabinsk Meteor On November 20, 2013, in Computational Modeling & Simulation, Modeling, Modeling,...

  17. Business Model Resources | Department of Energy

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

    Run a Program Getting Started Business Model Resources Business Model Resources Business Models Guide Business Model Planning Resources - Working with Partners Sample Program...

  18. Nuclear Systems Modeling & Simulation | More Science | ORNL

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

    Systems Modeling and Simulation SHARE Nuclear Systems Modeling and Simulation Reactor physics depletion model for the Advanced Test Reactor Reactor physics depletion model for the...

  19. A model for projectile fragmentation

    E-Print Network [OSTI]

    Chaudhuri, G; Gupta, S Das

    2012-01-01T23:59:59.000Z

    A model for projectile fragmentation is developed whose origin can be traced back to the Bevalac era. The model positions itself between the phenomenological EPAX parametrization and microscopic transport models like "Heavy Ion Phase Space Exploration" (HIPSE) model and antisymmetrised molecular dynamics (AMD) model. A very simple impact parameter dependence of input temperature is incorporated in the model which helps to analyze the more peripheral collisions. The model is applied to calculate the charge, isotopic distributions, average number of intermediate mass fragments and the average size of largest cluster at different $Z_{bound}$ of different projectile fragmentation reactions at different energies.

  20. Mesoscale ocean dynamics modeling

    SciTech Connect (OSTI)

    mHolm, D.; Alber, M.; Bayly, B.; Camassa, R.; Choi, W.; Cockburn, B.; Jones, D.; Lifschitz, A.; Margolin, L.; Marsden, L.; Nadiga, B.; Poje, A.; Smolarkiewicz, P. [Los Alamos National Lab., NM (United States); Levermore, D. [Arizona Univ., Tucson, AZ (United States)

    1996-05-01T23:59:59.000Z

    This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The ocean is a very complex nonlinear system that exhibits turbulence on essentially all scales, multiple equilibria, and significant intrinsic variability. Modeling the ocean`s dynamics at mesoscales is of fundamental importance for long-time-scale climate predictions. A major goal of this project has been to coordinate, strengthen, and focus the efforts of applied mathematicians, computer scientists, computational physicists and engineers (at LANL and a consortium of Universities) in a joint effort addressing the issues in mesoscale ocean dynamics. The project combines expertise in the core competencies of high performance computing and theory of complex systems in a new way that has great potential for improving ocean models now running on the Connection Machines CM-200 and CM-5 and on the Cray T3D.

  1. Hoechst Celanese Energy Model

    E-Print Network [OSTI]

    Fitzpatrick, B. A.; Gangadhar, K.

    operating areas or "units" in HOCEM, though some of the units are as simple as cooling towers and others as complex as production areas. A VAX-based spreadsheet software program, Graphic Outlook, from stone Mountain Computing was selected as the model... heuristic guidelines. Finally, HOCEM optimizes on the actual costs of operation. STANDARDS DEVELOPMENT As was mentioned above, each of -50 operating areas forecasts its utilities demand. The general format for these "unit spreadsheets...

  2. Anomaly for Model Building

    E-Print Network [OSTI]

    Utpal Sarkar

    2006-06-19T23:59:59.000Z

    A simple algorithm to calculate the group theory factor entering in anomalies at four and six dimensions for SU(N) and SO(N) groups in terms of the Casimir invariants of their subgroups is presented. Explicit examples of some of the lower dimensional representations of $SU(n), n \\leq 5$ and SO(10) groups are presented, which could be used for model building in four and six dimensions.

  3. Natural Poincare gauge model

    SciTech Connect (OSTI)

    Aldrovandi, R.; Pereira, J.G.

    1986-05-15T23:59:59.000Z

    Because it acts on space-time and is not semisimple, the Poincare group cannot lead to a gauge theory of the usual kind. A candidate model is discussed which keeps itself as close as possible to the typical gauge scheme. Its field equations are the Yang-Mills equations for the Poincare group. It is shown that there exists no Lagrangian for these equations.

  4. The unquenched quark model

    E-Print Network [OSTI]

    Santopinto, E

    2015-01-01T23:59:59.000Z

    In this contribution, we briefly discuss the results for charmonium and bottomonium spectra with self-energy corrections in the unquenched quark model, due to the coupling to the meson-meson continuum. The UQM formalism can be extended to include also the effects of hybrid mesons, i.e. hybrid loops. Finally, we discuss the results of a calculation of hybrid mesons spectrum in Coulomb Gauge QCD.

  5. The unquenched quark model

    E-Print Network [OSTI]

    E. Santopinto; J. Ferretti

    2015-03-10T23:59:59.000Z

    In this contribution, we briefly discuss the results for charmonium and bottomonium spectra with self-energy corrections in the unquenched quark model, due to the coupling to the meson-meson continuum. The UQM formalism can be extended to include also the effects of hybrid mesons, i.e. hybrid loops. Finally, we discuss the results of a calculation of hybrid mesons spectrum in Coulomb Gauge QCD.

  6. MULTISCALE THERMOHYDROLOGIC MODEL

    SciTech Connect (OSTI)

    T.A. Buscheck

    2001-12-21T23:59:59.000Z

    The purpose of the Multiscale Thermohydrologic Model (MSTHM) is to describe the thermohydrologic evolution of the near-field environment (NFE) and engineered barrier system (EBS) throughout the potential high-level nuclear waste repository at Yucca Mountain for a particular engineering design (CRWMS M&O 2000c). The process-level model will provide thermohydrologic (TH) information and data (such as in-drift temperature, relative humidity, liquid saturation, etc.) for use in other technical products. This data is provided throughout the entire repository area as a function of time. The MSTHM couples the Smeared-heat-source Drift-scale Thermal-conduction (SDT), Line-average-heat-source Drift-scale Thermohydrologic (LDTH), Discrete-heat-source Drift-scale Thermal-conduction (DDT), and Smeared-heat-source Mountain-scale Thermal-conduction (SMT) submodels such that the flow of water and water vapor through partially-saturated fractured rock is considered. The MSTHM accounts for 3-D drift-scale and mountain-scale heat flow, repository-scale variability of stratigraphy and infiltration flux, and waste package (WP)-to-WP variability in heat output from WPs. All submodels use the nonisothermal unsaturated-saturated flow and transport (NUFT) simulation code. The MSTHM is implemented in several data-processing steps. The four major steps are: (1) submodel input-file preparation, (2) execution of the four submodel families with the use of the NUFT code, (3) execution of the multiscale thermohydrologic abstraction code (MSTHAC), and (4) binning and post-processing (i.e., graphics preparation) of the output from MSTHAC. Section 6 describes the MSTHM in detail. The objectives of this Analyses and Model Report (AMR) are to investigate near field (NF) and EBS thermohydrologic environments throughout the repository area at various evolution periods, and to provide TH data that may be used in other process model reports.

  7. Modeling volcanic ash dispersal

    ScienceCinema (OSTI)

    None

    2011-10-06T23:59:59.000Z

    Explosive volcanic eruptions inject into the atmosphere large amounts of volcanic material (ash, blocks and lapilli). Blocks and larger lapilli follow ballistic and non-ballistic trajectories and fall rapidly close to the volcano. In contrast, very fine ashes can remain entrapped in the atmosphere for months to years, and may affect the global climate in the case of large eruptions. Particles having sizes between these two end-members remain airborne from hours to days and can cover wide areas downwind. Such volcanic fallout entails a serious threat to aircraft safety and can create many undesirable effects to the communities located around the volcano. The assessment of volcanic fallout hazard is an important scientific, economic, and political issue, especially in densely populated areas. From a scientific point of view, considerable progress has been made during the last two decades through the use of increasingly powerful computational models and capabilities. Nowadays, models are used to quantify hazard scenarios and/or to give short-term forecasts during emergency situations. This talk will be focused on the main aspects related to modeling volcanic ash dispersal and fallout with application to the well known problem created by the Eyjafjöll volcano in Iceland. Moreover, a short description of the main volcanic monitoring techniques is presented.

  8. Radiolysis Process Model

    SciTech Connect (OSTI)

    Buck, Edgar C.; Wittman, Richard S.; Skomurski, Frances N.; Cantrell, Kirk J.; McNamara, Bruce K.; Soderquist, Chuck Z.

    2012-07-17T23:59:59.000Z

    Assessing the performance of spent (used) nuclear fuel in geological repository requires quantification of time-dependent phenomena that may influence its behavior on a time-scale up to millions of years. A high-level waste repository environment will be a dynamic redox system because of the time-dependent generation of radiolytic oxidants and reductants and the corrosion of Fe-bearing canister materials. One major difference between used fuel and natural analogues, including unirradiated UO2, is the intense radiolytic field. The radiation emitted by used fuel can produce radiolysis products in the presence of water vapor or a thin-film of water (including OH• and H• radicals, O2-, eaq, H2O2, H2, and O2) that may increase the waste form degradation rate and change radionuclide behavior. H2O2 is the dominant oxidant for spent nuclear fuel in an O2 depleted water environment, the most sensitive parameters have been identified with respect to predictions of a radiolysis model under typical conditions. As compared with the full model with about 100 reactions it was found that only 30-40 of the reactions are required to determine [H2O2] to one part in 10–5 and to preserve most of the predictions for major species. This allows a systematic approach for model simplification and offers guidance in designing experiments for validation.

  9. Modeling for Airborne Contamination

    SciTech Connect (OSTI)

    F.R. Faillace; Y. Yuan

    2000-08-31T23:59:59.000Z

    The objective of Modeling for Airborne Contamination (referred to from now on as ''this report'') is to provide a documented methodology, along with supporting information, for estimating the release, transport, and assessment of dose to workers from airborne radioactive contaminants within the Monitored Geologic Repository (MGR) subsurface during the pre-closure period. Specifically, this report provides engineers and scientists with methodologies for estimating how concentrations of contaminants might be distributed in the air and on the drift surfaces if released from waste packages inside the repository. This report also provides dose conversion factors for inhalation, air submersion, and ground exposure pathways used to derive doses to potentially exposed subsurface workers. The scope of this report is limited to radiological contaminants (particulate, volatile and gaseous) resulting from waste package leaks (if any) and surface contamination and their transport processes. Neutron activation of air, dust in the air and the rock walls of the drift during the preclosure time is not considered within the scope of this report. Any neutrons causing such activation are not themselves considered to be ''contaminants'' released from the waste package. This report: (1) Documents mathematical models and model parameters for evaluating airborne contaminant transport within the MGR subsurface; and (2) Provides tables of dose conversion factors for inhalation, air submersion, and ground exposure pathways for important radionuclides. The dose conversion factors for air submersion and ground exposure pathways are further limited to drift diameters of 7.62 m and 5.5 m, corresponding to the main and emplacement drifts, respectively. If the final repository design significantly deviates from these drift dimensions, the results in this report may require revision. The dose conversion factors are further derived by using concrete of sufficient thickness to simulate the drift walls. The gamma-ray scattering properties of concrete are sufficiently similar to those of the host rock and proposed insert material; use of concrete will have no significant impact on the conclusions. The information in this report is presented primarily for use in performing pre-closure radiological safety evaluations of radiological contaminants, but it may also be used to develop strategies for contaminant leak detection and monitoring in the MGR. Included in this report are the methods for determining the source terms and release fractions, and mathematical models and model parameters for contaminant transport and distribution within the repository. Various particle behavior mechanisms that affect the transport of contaminant are included. These particle behavior mechanisms include diffusion, settling, resuspension, agglomeration and other deposition mechanisms.

  10. Modeling prosodic features in language models for meetings. 

    E-Print Network [OSTI]

    Huang, Songfang; Renals, Steve

    2007-01-01T23:59:59.000Z

    In this paper we investigate the application of a novel technique for language modeling - a hierarchical Bayesian language model (LM) based on the Pitman-Yor process - on automatic speech recognition (ASR) for multiparty meetings. The hierarchical...

  11. Comparison of Photovoltaic Models in the System Advisor Model: Preprint

    SciTech Connect (OSTI)

    Blair, N. J.; Dobos, A. P.; Gilman, P.

    2013-08-01T23:59:59.000Z

    The System Advisor Model (SAM) is free software developed by the National Renewable Energy Laboratory (NREL) for predicting the performance of renewable energy systems and analyzing the financial feasibility of residential, commercial, and utility-scale grid-connected projects. SAM offers several options for predicting the performance of photovoltaic (PV) systems. The model requires that the analyst choose from three PV system models, and depending on that choice, possibly choose from three module and two inverter component models. To obtain meaningful results from SAM, the analyst must be aware of the differences between the model options and their applicability to different modeling scenarios. This paper presents an overview the different PV model options and presents a comparison of results for a 200-kW system using different model options.

  12. Modeling of Organizational Violence Violent Intent Modeling and Simulation (VIMS)

    E-Print Network [OSTI]

    McShea, Daniel W.

    111 Modeling of Organizational Violence Violent Intent Modeling and Simulation (VIMS) Georgiy and organizational violence ­ Use social science theories to assist analysis in understanding potential scenarios 2 Organizational Behavior (MAROB) · Global Terrorism Database (GTD) · The Big Allied And Dangerous (BAAD

  13. Model building in neural networks with hidden Markov models 

    E-Print Network [OSTI]

    Wynne-Jones, Michael

    This thesis concerns the automatic generation of architectures for neural networks and other pattern recognition models comprising many elements of the same type. The requirement for such models, with automatically ...

  14. Testing of the METSTAT model

    SciTech Connect (OSTI)

    Vignola, F. [Univ. of Oregon, Eugene, OR (United States). Physics Dept.

    1997-12-31T23:59:59.000Z

    The METSTAT model is a comprehensive model for estimating insolation on an hourly basis from cloud cover and other meteorological data. However, the METSTAT model does not reproduce the statistics found in measured daily data during periods of extensive cloud cover. In this study, METSTAT modeled estimates and measured hourly solar radiation data from Burns and Eugene Oregon are examined and compared. A source of the discrepancy between the modeled and measured data is identified. Slight modifications to the METSTAT model that significantly reduce the discrepancy are demonstrated for the Burns and Eugene sites.

  15. STEAM RECEIVER MODELS FOR SOLAR DISH CONCENTRATORS: TWO MODELS COMPARED

    E-Print Network [OSTI]

    response of a parabolic dish steam cavity receiver. Both approaches are based on a heat transfer model

  16. 3.0 Exporting Models Save model as OBJ file

    E-Print Network [OSTI]

    Gordon, Scott

    3.0 Exporting Models Save model as OBJ file: o Make sure that the model, and the UV-unwrapping, are open and displayed. o File Export wavefront.obj o Navigate to desired directory (remember that single RETURN to accept the name (or use the Export Wavefront button in the upper right) o Click on the Export

  17. Modeling of a Foamed Emulsion Bioreactor: II. Model Parametric Sensitivity

    E-Print Network [OSTI]

    ARTICLE Modeling of a Foamed Emulsion Bioreactor: II. Model Parametric Sensitivity Eunsung Kan: The sensitivity of a conceptual model of a foam emulsion bioreactor (FEBR) used for the control of toluene vapors mass transfer and kinetic limitations can coexist in the bioreactor system. These results will help

  18. Gas Distribution Modeling using Sparse Gaussian Process Mixture Models

    E-Print Network [OSTI]

    Stachniss, Cyrill

    Gas Distribution Modeling using Sparse Gaussian Process Mixture Models Cyrill Stachniss1 Christian-- In this paper, we consider the problem of learning a two dimensional spatial model of a gas distribution with a mobile robot. Building maps that can be used to accurately predict the gas concentration at query

  19. Model Projection: Simplifying Models in Response to Restricting the Environment

    E-Print Network [OSTI]

    Singer, Jeremy

    . For example, the `basic model' car air conditioning system may not offer the climate control functionality constructed by model checkers [8] and built by engineers in the telecommunications and embedded systems on state-based modelling [27], and are widely used for specifying discrete-event control devices

  20. Optimal Model-Based Production Planning

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    1 Optimal Model-Based Production Planning for Refinery Operation Abdulrahman Alattas Advisor;2 Outline Introduction Problem Statement Refinery Planning Model Development LP Planning Models NLP Planning Models Conclusion #12;3 Introduction Refinery production planning models Optimizing refinery

  1. A framework for benchmarking land models

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    their inclu- sion in Earth system models (ESMs). State-of-land models cou- pled to Earth system models should simulateland models within Earth system models, however, can help

  2. Model combination by decomposition and aggregation

    E-Print Network [OSTI]

    Xu, Mingyang, 1974-

    2004-01-01T23:59:59.000Z

    This thesis focuses on a general problem in statistical modeling, namely model combination. It proposes a novel feature-based model combination method to improve model accuracy and reduce model uncertainty. In this method, ...

  3. artificial intelligence approach: Topics by E-print Network

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

    ... Brady, Michael 1984-02-01 16 An artificial intelligence approach to model-based gas lift troubleshooting Texas A&M University - TxSpace Summary: AN ARTIFICIAL INTELLIGENCE...

  4. artificial intelligence approaches: Topics by E-print Network

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

    ... Brady, Michael 1984-02-01 16 An artificial intelligence approach to model-based gas lift troubleshooting Texas A&M University - TxSpace Summary: AN ARTIFICIAL INTELLIGENCE...

  5. Computational Fluid Dynamics Study of Aerosol Transport and Deposition Mechanisms

    E-Print Network [OSTI]

    Tang, Yingjie

    2012-07-16T23:59:59.000Z

    In this work, various aerosol particle transport and deposition mechanisms were studied through the computational fluid dynamics (CFD) modeling, including inertial impaction, gravitational effect, lift force, interception, and turbophoresis, within...

  6. Aerodynamic evaluation of four butterfly species for the design of flapping-gliding robotic insects

    E-Print Network [OSTI]

    Wood, Robert

    '597 and 12'632) in a low speed wind tunnel which allows lift and drag force measurements of centimeter on live ani- mals [17]­[22] and using artificial models of butterflies and dragonflies [23]­[25]. One

  7. J. Fluid Mech. (2007), vol. 582, pp. 179202. c 2007 Cambridge University Press doi:10.1017/S0022112007005770 Printed in the United Kingdom

    E-Print Network [OSTI]

    Schoeberl, Joachim

    2007-01-01T23:59:59.000Z

    with the slat cove resonances and depend on the slat cove geometry. All resonances are damped owing to radiation, Thomas & Nelson (2000) (high-lift model), Dobrzynski, #12;180 S. Hein, T. Hohage, W. Koch and J. Sch

  8. Segmentation and Enhancement of Latent Fingerprints: A Coarse to Fine Ridge

    E-Print Network [OSTI]

    a latent fingerprint image, a total variation (TV) decomposition model with L1 fidelity regularization INTRODUCTION LATENT fingerprints (or simply latents or finger marks) refer to fingerprints lifted from the sur

  9. DESY 07074 KCLMTH0706

    E-Print Network [OSTI]

    Institute for Mathematics, University of Amsterdam, Plantage Muidergracht 24, 1018 TV Amsterdam is shown to be non-diagonalizable. After lifting these results to the full WZNW model, we address various

  10. Impact of Alternative Energy Prices, Tenure Arrangements and Irrigation Technologies on a Typical Texas High Plains Farm

    E-Print Network [OSTI]

    Petty, J. A.; Lacewell, R. D.; Hardin, D. C.; Whitson, R. E.

    and new technology. The model includes a Fortran sub-routine that adjusts irrigation factors each year based on the linear programming solution of the previous year. After calculating new pumping energy requirements, well yield, and pumping lift...

  11. Ab-initio modeling of electromechanical coupling at Si surfaces

    SciTech Connect (OSTI)

    Hoppe, Sandra; Müller, Stefan, E-mail: stefan.mueller@tuhh.de [Institute of Advanced Ceramics, Hamburg University of Technology, 21073 Hamburg (Germany); Michl, Anja [Institute of Advanced Ceramics, Hamburg University of Technology, 21073 Hamburg (Germany); Institute of Materials Research, Materials Mechanics, Helmholtz-Zentrum Geesthacht, 21502 Geesthacht (Germany); Weissmüller, Jörg [Institute of Materials Research, Materials Mechanics, Helmholtz-Zentrum Geesthacht, 21502 Geesthacht (Germany); Institute of Materials Physics and Technology, Hamburg University of Technology, 21073 Hamburg (Germany)

    2014-08-21T23:59:59.000Z

    The electromechanical coupling at the silicon (100) and (111) surfaces was studied via density functional theory by calculating the response of the ionization potential and the electron affinity to different types of strain. We find a branched strain response of those two quantities with different coupling coefficients for negative and positive strain values. This can be attributed to the reduced crystal symmetry due to anisotropic strain, which partially lifts the degeneracy of the valence and conduction bands. Only the Si(111) electron affinity exhibits a monotonously linear strain response, as the conduction band valleys remain degenerate under strain. The strain response of the surface dipole is linear and seems to be dominated by volume changes. Our results may help to understand the mechanisms behind electromechanical coupling at an atomic level in greater detail and for different electronic and atomic structures.

  12. Thermal Modeling of Lundell Alternators

    E-Print Network [OSTI]

    Tang, Sai Chun

    Thermal analysis of Lundell alternators used in automobiles is presented. An analytical thermal model for Lundell alternators is proposed, and procedures for acquiring the model parameters are elucidated. Based on the ...

  13. Modeling applied to problem solving

    E-Print Network [OSTI]

    Pawl, Andrew

    We describe a modeling approach to help students learn expert problem solving. Models are used to present and hierarchically organize the syllabus content and apply it to problem solving, but students do not develop and ...

  14. Tools for dynamic model development

    E-Print Network [OSTI]

    Schaber, Spencer Daniel

    2014-01-01T23:59:59.000Z

    For this thesis, several tools for dynamic model development were developed and analyzed. Dynamic models can be used to simulate and optimize the behavior of a great number of natural and engineered systems, from the ...

  15. Named entity tagged language models

    E-Print Network [OSTI]

    Gotoh, Yoshihiko; Renals, Steve; Williams, Gethin

    1999-01-01T23:59:59.000Z

    We introduce Named Entity (NE) Language Modelling, a stochastic finite state machine approach to identifying both words and NE categories from a stream of spoken data. We provide an overview of our approach to NE tagged language model (LM...

  16. Environmental Modeling: Coping with Uncertainty

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    ­ Statistical heterogeneity ­ Complex correlation structures · Classical models: ­ Additive noise ­ UniEnvironmental Modeling: Coping with Uncertainty Daniel M. Tartakovsky (dmt@lanl.gov) Theoretical of environmental processes 2. Parametric uncertainty 3. Current approaches to uncertainty quantification 4. Random

  17. Models for solvated biomolecular structures

    E-Print Network [OSTI]

    Cerutti, David

    2007-01-01T23:59:59.000Z

    Point Charge / Extended (SPC/E) [15] [100] and Transferableexplicit water models). In both SPC/E and TIP3P, the siteearlier, models such as TIP3P and SPC/E describe water in a

  18. Bayesian Networks for Social Modeling

    SciTech Connect (OSTI)

    Whitney, Paul D.; White, Amanda M.; Walsh, Stephen J.; Dalton, Angela C.; Brothers, Alan J.

    2011-03-28T23:59:59.000Z

    This paper describes a body of work developed over the past five years. The work addresses the use of Bayesian network (BN) models for representing and predicting social/organizational behaviors. The topics covered include model construction, validation, and use. These topics show the bulk of the lifetime of such model, beginning with construction, moving to validation and other aspects of model ‘critiquing’, and finally demonstrating how the modeling approach might be used to inform policy analysis. To conclude, we discuss limitations of using BN for this activity and suggest remedies to address those limitations. The primary benefits of using a well-developed computational, mathematical, and statistical modeling structure, such as BN, are 1) there are significant computational, theoretical and capability bases on which to build 2) ability to empirically critique the model, and potentially evaluate competing models for a social/behavioral phenomena.

  19. The DCC Curation Lifecycle Model 

    E-Print Network [OSTI]

    Higgins, Sarah

    2009-01-01T23:59:59.000Z

    The DCC Curation Lifecycle Model provides a graphical high level overview of the stages required for successful curation and preservation of data from initial conceptualisation or receipt. The model can be used to plan activities within...

  20. Modelling pre-rRNA 

    E-Print Network [OSTI]

    Axt, Konstantin

    2013-06-29T23:59:59.000Z

    In this project rRNA maturation was investigated with the help of mathematical models of processing pathways from pre-rRNA to mature rRNA species. Previously described models were transferred from Excel to Mathematica. ...

  1. Integrated Assessment Modeling

    SciTech Connect (OSTI)

    Edmonds, James A.; Calvin, Katherine V.; Clarke, Leon E.; Janetos, Anthony C.; Kim, Son H.; Wise, Marshall A.; McJeon, Haewon C.

    2012-10-31T23:59:59.000Z

    This paper discusses the role of Integrated Assessment models (IAMs) in climate change research. IAMs are an interdisciplinary research platform, which constitutes a consistent scientific framework in which the large-scale interactions between human and natural Earth systems can be examined. In so doing, IAMs provide insights that would otherwise be unavailable from traditional single-discipline research. By providing a broader view of the issue, IAMs constitute an important tool for decision support. IAMs are also a home of human Earth system research and provide natural Earth system scientists information about the nature of human intervention in global biogeophysical and geochemical processes.

  2. Paraphrastic Language Models

    E-Print Network [OSTI]

    Liu, X.; Gales, M. J. F.; Woodland, P. C.

    2014-04-30T23:59:59.000Z

    of Fisher conversational speech released by the LDC. A 59k recognition word list was used in decoding. The system uses a multi-pass recognition framework. The initial lattice generation used gender depen- dent cross-word triphone acoustic models... . The baseline LM was trained using a total of 1.0 billion words from 8 difference text sources. The two text sources with the highest interpolation weights, the LDC Fisher acoustic transcriptions [8], Fisher, of 20 million words (0.6), and the University...

  3. Models of granular ratchets

    E-Print Network [OSTI]

    G. Costantini; A. Puglisi; U. Marini Bettolo Marconi

    2009-05-26T23:59:59.000Z

    We study a general model of granular Brownian ratchet consisting of an asymmetric object moving on a line and surrounded by a two-dimensional granular gas, which in turn is coupled to an external random driving force. We discuss the two resulting Boltzmann equations describing the gas and the object in the dilute limit and obtain a closed system for the first few moments of the system velocity distributions. Predictions for the net ratchet drift, the variance of its velocity fluctuations and the transition rates in the Markovian limit, are compared to numerical simulations and a fair agreement is observed.

  4. Chemical kinetics modeling

    SciTech Connect (OSTI)

    Westbrook, C.K.; Pitz, W.J. [Lawrence Livermore National Laboratory, CA (United States)

    1993-12-01T23:59:59.000Z

    This project emphasizes numerical modeling of chemical kinetics of combustion, including applications in both practical combustion systems and in controlled laboratory experiments. Elementary reaction rate parameters are combined into mechanisms which then describe the overall reaction of the fuels being studied. Detailed sensitivity analyses are used to identify those reaction rates and product species distributions to which the results are most sensitive and therefore warrant the greatest attention from other experimental and theoretical research programs. Experimental data from a variety of environments are combined together to validate the reaction mechanisms, including results from laminar flames, shock tubes, flow systems, detonations, and even internal combustion engines.

  5. Model Verification and Validation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA /Ml'. William Hirst Hirst Enterprises,MODEL STANDARDS

  6. Modeling & Simulation publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA /Ml'. William Hirst HirstModeling & Simulation »

  7. HyPRO Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe Solar PowerCommercialEnergySandy-Nor'easter SituationHyPRO Model

  8. EIN Cash Flow Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 Federal Register / Vol. 73,H Model SeniorDepartment ofInfographicEIAEIN

  9. HTL Model Development

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGrid Integration0-1HAWAI'IHMAX1.3.4.100 HTL Model

  10. Sandia Energy - Modeling

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementing Nonlinear757Kelley Ruehl Home KelleyMary CrawfordMesaModeling

  11. Theory, Modeling and Computation

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

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

  12. Model Verification and Validation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1 SECTION A.Model Verification and Validation Engineering

  13. Concurrency models and Modern Processors

    E-Print Network [OSTI]

    Wolper, Pierre

    ) (global) To correspond to the SC model, an execution must satisfy the following conditions : opi , opj : opi opi

  14. Business Model Guide Executive Summary

    Broader source: Energy.gov [DOE]

    The Business Model Guide Executive Summary by the U.S. Department of Energy's Better Buildings Neighborhood Program.

  15. Is Imaginary Starobinsky Model Real?

    E-Print Network [OSTI]

    Renata Kallosh; Andrei Linde; Bert Vercnocke; Wissam Chemissany

    2014-08-12T23:59:59.000Z

    We investigate the recently proposed possibility of chaotic inflation with respect to the imaginary part of the field T in a supersymmetric embedding of the Starobinsky model. We show that the stage of rapid expansion driven by Im T in this model ends almost instantly, and the subsequent stages of inflation are driven by the real part of the field T, as in the standard Starobinsky model. Thus, the Starobinsky model and its supersymmetric generalizations remain disfavored by the recent BICEP2 data.

  16. Field Theory and Standard Model

    E-Print Network [OSTI]

    W. Buchmüller; C. Lüdeling

    2006-09-18T23:59:59.000Z

    This is a short introduction to the Standard Model and the underlying concepts of quantum field theory.

  17. Hot blast stove process model and model-based controller

    SciTech Connect (OSTI)

    Muske, K.R. [Villanova Univ., PA (United States). Dept. of Chemical Engineering; Howse, J.W.; Hansen, G.A.; Cagliostro, D.J. [Los Alamos National Lab., NM (United States). Computational Science Methods Group; Chaubal, P.C. [Inland Steel Industries, Inc., East Chicago, IN (United States). Research Labs.

    1998-12-31T23:59:59.000Z

    This paper describes the process model and model-based control techniques implemented on the hot blast stoves for the No. 7 Blast Furnace at the Inland Steel facility in East Chicago, Indiana. A detailed heat transfer model of the stoves is developed and verified using plant data. This model is used as part of a predictive control scheme to determine the minimum amount of fuel necessary to achieve the blast air requirements. The model is also used to predict maximum and minimum temperature constraint violations within the stove so that the controller can take corrective actions while still achieving the required stove performance.

  18. RMP Colloquia Modeling molecular motors

    E-Print Network [OSTI]

    Jülicher, Frank

    The authors present general considerations and simple models for the operation of isothermal motors at small structural differences from the usual Carnot engines. Turning to more explicit models for a single motorRMP Colloquia Modeling molecular motors Frank Ju¨licher,* Armand Ajdari, and Jacques Prost

  19. Bianchi Models with Chaplygin Gas

    E-Print Network [OSTI]

    Gülçin; Uluyazi; Özgür Sevinc

    2012-09-13T23:59:59.000Z

    Einstein Gravitational Field Equations (EFE) of Chaplygin gas dominated Bianchi-type models are obtained by using metric approximation. The solutions of equations for a special case, namely Bianchi I model which is a generalization of isotropic Friedmann-Robertson-Walker (FRW) cosmology, are obtained. The early and late behaviours of some kinematic parameters in model are presented in graphically.

  20. Compositional Receptor Modeling Dean Billheimer

    E-Print Network [OSTI]

    Washington at Seattle, University of

    regarding presence or absence of chemical tracers. I illustrate this approach by modeling air pollution data-Roche for providing the Juneau, AK air pollution data. 1 #12;1 Introduction to Source Receptor Modeling Air quality these issues by analyzing pollution concentrations measured in ambient air. These models aim to identify pol

  1. Functional Convolution Models Maria Asencio

    E-Print Network [OSTI]

    Keinan, Alon

    on the California E55/59 study of diesel truck emissions. Keywords: Convolution Model, Functional Data Analysis-world road conditions, from highways to suburban traffic. An emissions analyzer is attached to the truck, Distributed Lag Model, Particulate Matter, Emissions Modeling 1. INTRODUCTION This paper proposes

  2. Regions in Energy Market Models

    SciTech Connect (OSTI)

    Short, W.

    2007-02-01T23:59:59.000Z

    This report explores the different options for spatial resolution of an energy market model--and the advantages and disadvantages of models with fine spatial resolution. It examines different options for capturing spatial variations, considers the tradeoffs between them, and presents a few examples from one particular model that has been run at different levels of spatial resolution.

  3. Model Based Control Refrigeration Systems

    E-Print Network [OSTI]

    Model Based Control of Refrigeration Systems Ph.D. Thesis Lars Finn Sloth Larsen Central R & D University, Denmark. The work has been carried out at the Central R&D - Refrigeration and Air Conditioning The subject for this Ph.D. thesis is model based control of refrigeration systems. Model based control covers

  4. timber quality Modelling and forecasting

    E-Print Network [OSTI]

    Forest and timber quality in Europe Modelling and forecasting yield and quality in Europe Forest and timber quality in Europe Modelling and forecasting yield and quality in Europe M E F Y Q U E #12;Valuing and the UK ­ are working closely together to develop a model to help forecast timber growth, yield, quality

  5. MODELING HORMONAL CONTROL MENSTRUAL CYCLE

    E-Print Network [OSTI]

    MODELING HORMONAL CONTROL OF THE MENSTRUAL CYCLE James F. Selgrade Department of Mathematics of five hormones important for regulation and maintenance of the menstrual cycle. Models which correctly@math.ncsu.edu Abstract This study presents a strategy for developing a mathematical model describing the concentrations

  6. Nonparametric GARCH Models Peter Buhlmann

    E-Print Network [OSTI]

    McNeil, Alexander J.

    Nonparametric GARCH Models Peter Buhlmann #3; Seminar fur Statistik Federal Institute describe a nonparametric GARCH model of #12;rst order and pro- pose a simple iterative algorithm for its GARCH(1,1) modelling, particularly when asymmetries are present in the data. We show how the basic

  7. An Introduction to Model Checking

    E-Print Network [OSTI]

    Wolper, Pierre

    expertise and is not yet sufficiently powerful to be widely usable. Model checking [CES86] is often thought­state systems and, though this limitation is no longer absolute, model checking is still only applicable aspect on which model checking diverges from traditional verification is that it is fully algorithmic

  8. DATA ASSIMILATION IN HYDRODYNAMIC MODELS

    E-Print Network [OSTI]

    modelling and Kalman filters. The thesis consists of a summary report and a collection of seven researchDATA ASSIMILATION IN HYDRODYNAMIC MODELS OF CONTINENTAL SHELF SEAS Jacob Viborg Tornfeldt Sørensen Informatics and Mathematical Modelling Technical University of Denmark Ph.D. Thesis No. 126 Kgs. Lyngby 2004

  9. Stellar Evolution A Statistical Model

    E-Print Network [OSTI]

    van Dyk, David

    Stellar Evolution A Statistical Model Statistical Computation Analysis of the Hyades Cluster Embedding Computer Models for Stellar Evolution into a Coherent Statistical Analysis David A. van Dyk1 Analysis of Stellar Evolution #12;Stellar Evolution A Statistical Model Statistical Computation Analysis

  10. Biomass from Combined Backseatter Modeling

    E-Print Network [OSTI]

    Weishampel, John F.

    and SAR back- scatter. In this article we discuss' the use of models to help develop a relationship to an airbomw SAR (AIB- SAB) image over a fi?rested area in Maine. A relationship derived totall!l from model results was fi?und to undervs- timate biomass. Calibrating the modeled backscatter with limited AIRSAB

  11. Mesoscale Modeling Spring Semester 2014

    E-Print Network [OSTI]

    ATS730 Mesoscale Modeling Spring Semester 2014 Meeting Times: T/TH: 9-10:15am Room: ATS 101 is to present the development of the basic equations used in mesoscale models, as well as the various methods than on actual simulations of mesoscale phenomena or the evaluation of specific mesoscale models

  12. 4, 54555514, 2004 Mesoscale modeling

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 4, 5455­5514, 2004 Mesoscale modeling of combined aerosol and photo-oxidant processes M Union 2004 Atmospheric Chemistry and Physics Discussions Mesoscale modeling of combined aerosol­5514, 2004 Mesoscale modeling of combined aerosol and photo-oxidant processes M. Lazaridis et al. Title Page

  13. Unstructured grid modelling to create 3-D Earth models that unify geological and geophysical

    E-Print Network [OSTI]

    Farquharson, Colin G.

    Unstructured grid modelling to create 3-D Earth models that unify geological and geophysical Conclusion The common Earth model Geophysical inversion Geological and geophysical models Instructured meshes Geophysical inversion Geological and geophysical models Instructured meshes Motivation: The common Earth model

  14. Key challenges to model-based design : distinguishing model confidence from model validation

    E-Print Network [OSTI]

    Flanagan, Genevieve (Genevieve Elise Cregar)

    2012-01-01T23:59:59.000Z

    Model-based design is becoming more prevalent in industry due to increasing complexities in technology while schedules shorten and budgets tighten. Model-based design is a means to substantiate good design under these ...

  15. Model documentation report: Transportation sector model of the National Energy Modeling System

    SciTech Connect (OSTI)

    Not Available

    1994-03-01T23:59:59.000Z

    This report documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model. This document serves three purposes. First, it is a reference document providing a detailed description of TRAN for model analysts, users, and the public. Second, this report meets the legal requirements of the Energy Information Administration (EIA) to provide adequate documentation in support of its statistical and forecast reports (Public Law 93-275, 57(b)(1)). Third, it permits continuity in model development by providing documentation from which energy analysts can undertake model enhancements, data updates, and parameter refinements.

  16. An engineering geology analysis of home foundations on expansive clays

    E-Print Network [OSTI]

    Castleberry, Joe Patterson

    1974-01-01T23:59:59.000Z

    Center Lift Model 70 14 Regression Analysis With Interactions End Lift Model 71 APPENDIX C C-1 Studies in Which Swelling Potential and Pressure Were Compared Against Several Soil Index Properties . . . . . . . . . 126 iX Table APPENDIX D Page.... environmental parameters. Studies directed toward light foundations on expansive soil have been limited to case histories of damaged structures, and, for most purposes, do little more than restate the problem. The Carter's &rove Addition, located...

  17. Tachyon warm inflationary universe models

    E-Print Network [OSTI]

    R. Herrera; S. del Campo; C. Campuzano

    2006-10-11T23:59:59.000Z

    Warm inflationary universe models in a tachyon field theory are studied. General conditions required for these models to be realizable are derived and discussed. We describe scalar perturbations (in the longitudinal gauge) and tensor perturbations for these scenarios. We develop our models for a constant dissipation parameter $\\Gamma$ in one case and one dependent on $\\phi$ in the other case. We have been successful in describing such of inflationary universe models. We use recent astronomical observations for constraining the parameters appearing in our model. Also, our results are compared with their analogous found in the cool inflationary case.

  18. Inventory of state energy models

    SciTech Connect (OSTI)

    Melcher, A.G.; Gist, R.L.; Underwood, R.G.; Weber, J.C.

    1980-03-31T23:59:59.000Z

    These models address a variety of purposes, such as supply or demand of energy or of certain types of energy, emergency management of energy, conservation in end uses of energy, and economic factors. Fifty-one models are briefly described as to: purpose; energy system; applications;status; validation; outputs by sector, energy type, economic and physical units, geographic area, and time frame; structure and modeling techniques; submodels; working assumptions; inputs; data sources; related models; costs; references; and contacts. Discussions in the report include: project purposes and methods of research, state energy modeling in general, model types and terminology, and Federal legislation to which state modeling is relevant. Also, a state-by-state listing of modeling efforts is provided and other model inventories are identified. The report includes a brief encylopedia of terms used in energy models. It is assumed that many readers of the report will not be experienced in the technical aspects of modeling. The project was accomplished by telephone conversations and document review by a team from the Colorado School of Mines Research Institute and the faculty of the Colorado School of Mines. A Technical Committee (listed in the report) provided advice during the course of the project.

  19. Propane Market Model documentation report

    SciTech Connect (OSTI)

    Not Available

    1993-12-01T23:59:59.000Z

    The purpose of this report is to define the objectives of the Propane Market Model (PMM), describe its basic approach, and to provide details on model functions. This report is intended as a reference document for model analysts, users, and the general public. Documentation of the model is in accordance with EIA`s legal obligation to provide adequate documentation in support of its models. The PMM performs a short-term (6- to 9-months) forecast of demand and price for consumer-grad propane in the national US market; it also calculates the end-of-month stock level during the term of the forecast. Another part of the model allows for short-term demand forecasts for certain individual Petroleum Administration for Defense (PAD) districts. The model is used to analyze market behavior assumptions or shocks and to determine the effect on market price, demand, and stock level.

  20. Fusion of \\ade Lattice Models

    E-Print Network [OSTI]

    Yu-kui Zhou; Paul A. Pearce

    1994-05-04T23:59:59.000Z

    Fusion hierarchies of \\ade face models are constructed. The fused critical $D$, $E$ and elliptic $D$ models yield new solutions of the Yang-Baxter equations with bond variables on the edges of faces in addition to the spin variables on the corners. It is shown directly that the row transfer matrices of the fused models satisfy special functional equations. Intertwiners between the fused \\ade models are constructed by fusing the cells that intertwine the elementary face weights. As an example, we calculate explicitly the fused $2\\times 2$ face weights of the 3-state Potts model associated with the $D_4$ diagram as well as the fused intertwiner cells for the $A_5$--$D_4$ intertwiner. Remarkably, this $2\\times 2$ fusion yields the face weights of both the Ising model and 3-state CSOS models.