Sample records for rotaxanes interlocked structures

  1. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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 football HighdefaultSandy-Nor'easterInnovationHybrid Rotaxanes:

  2. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing...

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

    arises when the electronic structure of the building block is to be retained in the material constructed. Traditional chemistry would link blocks through covalent bonds, but...

  3. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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) HarmonicbetandEnergyCorrective Action PlanHybrid

  4. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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) HarmonicbetandEnergyCorrective Action PlanHybridHybrid

  5. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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) HarmonicbetandEnergyCorrective Action

  6. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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 football HighdefaultSandy-Nor'easterInnovation Portal

  7. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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 football HighdefaultSandy-Nor'easterInnovation PortalHybrid

  8. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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 football HighdefaultSandy-Nor'easterInnovation

  9. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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 football HighdefaultSandy-Nor'easterInnovationHybrid

  10. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing?

    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 football HighdefaultSandy-Nor'easterInnovationHybridHybrid

  11. Interlocking wettable ceramic tiles

    DOE Patents [OSTI]

    Tabereaux, Jr., Alton T.; Fredrickson, Guy L.; Groat, Eric; Mroz, Thomas; Ulicny, Alan; Walker, Mark F.

    2005-03-08T23:59:59.000Z

    An electrolytic cell for the reduction of aluminum having a layer of interlocking cathode tiles positioned on a cathode block. Each tile includes a main body and a vertical restraining member to prevent movement of the tiles away from the cathode block during operation of the cell. The anode of the electrolytic cell may be positioned about 1 inch from the interlocking cathode tiles.

  12. Singlet oxygen generation using iodinated squaraine and squaraine-rotaxane dyesw

    E-Print Network [OSTI]

    Smith, Bradley D.

    Singlet oxygen generation using iodinated squaraine and squaraine-rotaxane dyesw Easwaran Arunkumar-rotaxanes to generate singlet oxygen for potential application in photodynamic therapy (PDT). Specifically, we compare-to-face orientations in the solid state. Singlet oxygen generation efficiency was measured by trapping with 1

  13. Safety Interlocks Group - Advanced Photon Source

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

    Info APS Safety Page ESH Safety Manual Safety Interlocks Systems ACIS PSS FEEPS BLEPS UPS Division Links APS Organization Chart Beamlines Directory APS Engineering Support...

  14. Interlocking egg-crate type grid assembly

    DOE Patents [OSTI]

    Kast, S.J.

    1985-03-15T23:59:59.000Z

    Disclosed is an interlocking egg-crate hexagonal grid for supporting a nuclear fuel pin in a hexagonal array. The grid is formed from strips bent at an angle of about 120/sup 0/ at each vertex. Over some faces of each hexagonal cell the strips are coplanar but are arranged, by stacking interlocking, to avoid any double thickness of metal in that plane. Springs and dimples are formed in the faces of each cell to hold the fuel pin substantially centered.

  15. Interlocking egg-crate type grid assembly

    DOE Patents [OSTI]

    Kast, Steven J. (Niskayuna, NY)

    1987-01-01T23:59:59.000Z

    Disclosed is an interlocking egg-crate hexagonal grid for supporting a nuclear fuel pin in a hexagonal array. The grid is formed from strips bent at an angle of about 120.degree. at each vertex. Over some faces of each hexagonal cell the strips are coplanar but are arranged, by stacking and interlocking, to avoid any double thickness of metal in that plane. Springs and dimples are formed in the faces of each cell to hold the fuel pin substantially centered.

  16. Accounting scandals and stigma by association via director interlocks

    E-Print Network [OSTI]

    Kang, Soon Lee Eugene

    2006-10-30T23:59:59.000Z

    . The results of the dissertation present strong evidence in support of most of the hypotheses. The characteristics of the interlocking director, the characteristics of the board, the strength of the director interlock, and the quality of corporate governance...

  17. Design for assembly : a computational approach to construct interlocking wooden frames

    E-Print Network [OSTI]

    Tai, Alan Song-Ching

    2012-01-01T23:59:59.000Z

    This thesis explores the computational process of generating and constructing interlocking frames. Its outcome delivers a sophisticated software tool that creates a three dimensional interlocking pattern, analyzes the ...

  18. The CERN Beam Interlock System: Principle and Operational Experience

    E-Print Network [OSTI]

    Puccio, B; Kwiatkowski, M; Romera Ramirez, I; Todd, B

    2010-01-01T23:59:59.000Z

    A complex Machine Protection System has been designed to protect the LHC machine from an accidental release of the beam energy, with about 20 subsystems providing status information to the Beam Interlock System that is the backbone of machine protection. Only if the subsystems are in the correct state for beam operation, the Beam Interlock System receives a status flag and beam can be injected into LHC (Large Hadron Collider). The Beam Interlock System also relays commands from the connected subsystems in case of failure for triggering the LHC Beam Dumping System. To maintain the required level of safety of the Beam Interlock System, the performance of the key components is verified before every fill of the machine and validated after every emergency beam dump before beam operation is allowed to continue. This includes all critical paths, starting from the inputs from connected systems triggering a beam dump request, followed by the correct interruption and propagation sequence of the two redundant beam permi...

  19. Extensible microprocessor without interlocked pipeline stages (emips), the reconfigurable microprocessor

    E-Print Network [OSTI]

    Pittman, Richard Neil

    2007-09-17T23:59:59.000Z

    have called our dynamically extensible microprocessor design the Extensible Microprocessor without Interlocked Pipeline Stages, or eMIPS. The eMIPS architecture uses the interaction of fixed and configurable logic available in modern...

  20. Verifying Therapy Safety Interlock System with SPIN Motlatsi Seotsanyana1

    E-Print Network [OSTI]

    Geldenhuys, Jaco

    , air traffic and space vehicle control systems, nuclear power plant safety control systems, medical as banking systems) to embedded environments (such as nuclear power plant safety control systemsVerifying Therapy Safety Interlock System with SPIN Motlatsi Seotsanyana1 , Jaco Geldenhuys2 1

  1. Permeable Interlocking Concrete Pavement (PICP) for Stormwater Management

    E-Print Network [OSTI]

    Permeable Interlocking Concrete Pavement (PICP) for Stormwater Management Benefits and Uses Potential for Extended Pavement Life Due to Well Drained Base and Reduced Freeze-Thaw No curing time Cost Can Be Comparable for PICP with Reduced Stormwater Infrastructure VS. Standard Pavement

  2. Availability Analysis of the Ventilation Stack CAM Interlock System

    E-Print Network [OSTI]

    Young, J

    2000-01-01T23:59:59.000Z

    Ventilation Stack Continuous Air Monitor (CAM) Interlock System failure modes, failure frequencies, and system availability have been evaluated for the RPP. The evaluation concludes that CAM availability is as high as assumed in the safety analysis and that the current routine system surveillance is adequate to maintain this availability credited in the safety analysis, nor is such an arrangement predicted to significantly improve system availability.

  3. Flammable gas interlock spoolpiece flow response test report

    SciTech Connect (OSTI)

    Schneider, T.C., Fluor Daniel Hanford

    1997-03-24T23:59:59.000Z

    The purpose of this test report is to document the testing performed under the guidance of HNF-SD-WM-TC-073, {ital Flammable Gas Interlock Spoolpiece Flow Response Test Plan and Procedure}. This testing was performed for Lockheed Martin Hanford Characterization Projects Operations (CPO) in support of Rotary Mode Core Sampling jointly by SGN Eurisys Services Corporation and Numatec Hanford Company. The testing was conducted in the 305 building Engineering Testing Laboratory (ETL). NHC provides the engineering and technical support for the 305 ETL. The key personnel identified for the performance of this task are as follows: Test responsible engineering manager, C. E. Hanson; Flammable Gas Interlock Design Authority, G. P. Janicek; 305 ETL responsible manager, N. J. Schliebe; Cognizant RMCS exhauster engineer, E. J. Waldo/J. D. Robinson; Cognizant 305 ETL engineer, K. S. Witwer; Test director, T. C. Schneider. Other support personnel were supplied, as necessary, from 305/306 ETL. The testing, on the flammable Gas Interlock (FGI) system spoolpiece required to support Rotary Mode Core Sampling (RMCS) of single shell flammable gas watch list tanks, took place between 2-13-97 and 2-25-97.

  4. DOI: 10.1002/adfm.200600973 Observation of Structural and Conductance Transition of Rotaxane

    E-Print Network [OSTI]

    Gao, Hongjun

    . H.-J. Gao, Dr. M. Feng, Dr. L. Gao, Dr. S. X. Du, Z. T. Deng, Z. H. Cheng, W. Ji, Dr. X. Lin Molecules at a Submolecular Scale** By Min Feng, Li Gao, Shixuan Du, Zhitao Deng, Zhihai Cheng, Wei Ji

  5. Photovoltaic module and interlocked stack of photovoltaic modules

    SciTech Connect (OSTI)

    Wares, Brian S.

    2012-09-04T23:59:59.000Z

    One embodiment relates to an arrangement of photovoltaic modules configured for transportation. The arrangement includes a plurality of photovoltaic modules, each photovoltaic module including a frame having at least a top member and a bottom member. A plurality of alignment features are included on the top member of each frame, and a plurality of alignment features are included on the bottom member of each frame. Adjacent photovoltaic modules are interlocked by the alignment features on the top member of a lower module fitting together with the alignment features on the bottom member of an upper module. Other embodiments, features and aspects are also disclosed.

  6. Photovoltaic module and interlocked stack of photovoltaic modules

    SciTech Connect (OSTI)

    Wares, Brian S.

    2014-09-02T23:59:59.000Z

    One embodiment relates to an arrangement of photovoltaic modules configured for transportation. The arrangement includes a plurality of photovoltaic modules, each photovoltaic module including a frame. A plurality of individual male alignment features and a plurality of individual female alignment features are included on each frame. Adjacent photovoltaic modules are interlocked by multiple individual male alignment features on a first module of the adjacent photovoltaic modules fitting into and being surrounded by corresponding individual female alignment features on a second module of the adjacent photovoltaic modules. Other embodiments, features and aspects are also disclosed.

  7. Interlocking Cross-Laminatd Timber (ICLT) for Rural Architecture Ryan E. Smith & Jeff Cramer, ITAC, University of Utah

    E-Print Network [OSTI]

    Tipple, Brett

    Interlocking Cross-Laminatd Timber (ICLT) for Rural Architecture Ryan E. Smith, meeting the needs of a more sustainable building industry, economically

  8. Next Generation Fast RF Interlock Module and ATCA Adapter for ILC High Availability RF Test Station Demonstration

    SciTech Connect (OSTI)

    Larsen, R

    2009-10-17T23:59:59.000Z

    High availability interlocks and controls are required for the ILC (International Linear Collider) L-Band high power RF stations. A new F3 (Fast Fault Finder) VME module has been developed to process both fast and slow interlocks using FPGA logic to detect the interlock trip excursions. This combination eliminates the need for separate PLC (Programmable Logic Controller) control of slow interlocks. Modules are chained together to accommodate as many inputs as needed. In the next phase of development the F3's will be ported to the new industry standard ATCA (Advanced Telecom Computing Architecture) crate (shelf) via a specially designed VME adapter module with IPMI (Intelligent Platform Management Interface). The goal is to demonstrate auto-failover and hot-swap for future partially redundant systems.

  9. Interlocked optimization and fast gradient algorithm for a seismic inverse problem

    SciTech Connect (OSTI)

    Metivier, Ludovic, E-mail: ludovic.metivier@gmail.com [LAGA, Universite Paris XIII, 99 Avenue Jean-Baptiste Clement, 93000 Epinay-Villetaneuse (France)

    2011-08-10T23:59:59.000Z

    Highlights: {yields} A 2D extension of the 1D nonlinear inversion of well-seismic data is given. {yields} Appropriate regularization yields a well-determined large scale inverse problem. {yields} An interlocked optimization loop acts as an efficient preconditioner. {yields} The adjoint state method is used to compute the misfit function gradient. {yields} Domain decomposition method yields an efficient parallel implementation. - Abstract: We give a nonlinear inverse method for seismic data recorded in a well from sources at several offsets from the borehole in a 2D acoustic framework. Given the velocity field, approximate values of the impedance are recovered. This is a 2D extension of the 1D inversion of vertical seismic profiles . The inverse problem generates a large scale undetermined ill-conditioned problem. Appropriate regularization terms render the problem well-determined. An interlocked optimization algorithm yields an efficient preconditioning. A gradient algorithm based on the adjoint state method and domain decomposition gives a fast parallel numerical method. For a realistic test case, convergence is attained in an acceptable time with 128 processors.

  10. The formation mechanisms of interlocked microstructures in low-carbon high-strength steel weld metals

    SciTech Connect (OSTI)

    Wan, X.L.; Wang, H.H.; Cheng, L.; Wu, K.M., E-mail: wukaiming2000@yahoo.com

    2012-05-15T23:59:59.000Z

    Microstructural features and the formation mechanisms of interlocked microstructures of acicular ferrite in a low-carbon high-strength steel weld metal were investigated by means of computer-aided three-dimensional reconstruction technique and electron backscattered diffraction analysis. Multiple nucleation on inclusions, sympathetic nucleation or repeated nucleation, hard impingement, mutual intersection, and fixed orientation relationships of acicular ferrite grains were observed. They were all responsible for the formation of interlocked microstructures in the weld metal. During the process of isothermal transformation, the pre-formed acicular ferrite laths or plates partitioned austenite grains into many small and separate regions, and the growth of later formed acicular ferrite grains was confined in these small regions. Thus, the crystallographic grain size became smaller with the increasing holding time. Highlights: Black-Right-Pointing-Pointer Acicular ferrite is formed by multiple nucleation and sympathetic nucleation. Black-Right-Pointing-Pointer Hard impingement and intersection of ferrite grains occur at later stages. Black-Right-Pointing-Pointer The pre-formed ferrite laths partition austenite grains into smaller regions. Black-Right-Pointing-Pointer The growth of later formed ferrite grains is confined in the smaller regions.

  11. Wydzga, M.A., M.A. Hassan, J.G. Venditti, T. Dunne (2005), Can interlocked grains reduce the mobility of gravel bed rivers?, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract H53B-0462.

    E-Print Network [OSTI]

    Venditti, Jeremy G.

    2005-01-01T23:59:59.000Z

    the mobility of gravel bed rivers?, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract H53B-0462. Can interlocked grains reduce the mobility of gravel bed rivers? M.A. Wydzga1 , M.A. Hassan2 , J.G. Venditti3 , T of Earth and Planetary Science, University of California, Berkeley, CA 94720 Channel stability of gravel

  12. Heat pipe with improved wick structures

    DOE Patents [OSTI]

    Benson, David A. (Albuquerque, NM); Robino, Charles V. (Albuquerque, NM); Palmer, David W. (Albuquerque, NM); Kravitz, Stanley H. (Placitas, NM)

    2000-01-01T23:59:59.000Z

    An improved planar heat pipe wick structure having projections formed by micromachining processes. The projections form arrays of interlocking, semi-closed structures with multiple flow paths on the substrate. The projections also include overhanging caps at their tops to increase the capillary pumping action of the wick structure. The capped projections can be formed in stacked layers. Another layer of smaller, more closely spaced projections without caps can also be formed on the substrate in between the capped projections. Inexpensive materials such as Kovar can be used as substrates, and the projections can be formed by electrodepositing nickel through photoresist masks.

  13. Sea Ice Ridging and Rafting Structures: Is the microstructural controlled transition from Ductile to Brittle Behavior on Earth also seen on Mars? S.F. Ackley, P. Wagner, H. Xie,

    E-Print Network [OSTI]

    Texas at San Antonio, University of

    , and liquid brine contained within lamellae of a pure ice matrix in a closely interlocked structure. The relative amount of brine, ice and solid salts is controlled by the thermodynamics of the phase equilibrium]. At higher brine volumes, sea ice behaves as a ductile material, meaning that it can undergo large strain

  14. Stabilization of Large Scale Structure by Adhesive Gravitational Clustering

    E-Print Network [OSTI]

    Thomas Buchert

    1999-08-13T23:59:59.000Z

    The interplay between gravitational and dispersive forces in a multi-streamed medium leads to an effect which is exposed in the present note as the genuine driving force of stabilization of large-scale structure. The conception of `adhesive gravitational clustering' is advanced to interlock the fairly well-understood epoch of formation of large-scale structure and the onset of virialization into objects that are dynamically in equilibrium with their large-scale structure environment. The classical `adhesion model' is opposed to a class of more general models traced from the physical origin of adhesion in kinetic theory.

  15. Heirarchical Self Assembly: Self Organized nano-structures in a nematically ordered matrix of self assembled polymeric chains

    E-Print Network [OSTI]

    Shaikh Mubeena; Apratim Chatterji

    2014-12-04T23:59:59.000Z

    We report many different nano-structures which are formed when model nano-particles of different sizes (diameter {\\sigma} n ) are allowed to aggregate in a background matrix of semi-flexible self assembled polymeric worm like micellar chains. The different nano-structures are formed by the dynamical arrest of phase-separating mixtures of micellar monomers and nano-particles. The different mor- phologies obtained are the result of an interplay of the available free volume, the elastic energy of deformation of polymers, the density (chemical potential) of the nano-particles in the polymer ma- trix and, of course, the ratio of the size of self assembling nano-particles and self avoidance diameter of polymeric chains. We have used a hybrid semi-grand canonical Monte Carlo simulation scheme to obtain the (non-equilibrium) phase diagram of the self-assembled nano-structures. We observe rod-like structures of nano-particles which get self assembled in the gaps between the nematically ordered chains as well as percolating gel-like network of conjoined nanotubes. We also find a totally unexpected interlocked crystalline phase of nano-particles and monomers, in which each crytal plane of nanoparticles is separated by planes of perfectly organized polymer chains. We identified the con- dition which leads to such interlocked crystal structure. We suggest experimental possibilities of how the results presented in this paper could be used to obtain different nano-structures in the lab.

  16. Method of installing subsurface barrier

    DOE Patents [OSTI]

    Nickelson, Reva A. (Shelley, ID); Richardson, John G. (Idaho Falls, ID); Kostelnik, Kevin M. (Idaho Falls, ID); Sloan, Paul A. (Rigby, ID)

    2007-10-09T23:59:59.000Z

    Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create subterranean barriers for containing and treating buried waste and its effluents. The multiple female interlock structures enable the barriers to be varied around subsurface objects and to form barrier sidewalls. The barrier may be used for treating and monitoring a zone of interest.

  17. Method of sealing casings of subsurface materials management system

    DOE Patents [OSTI]

    Nickelson, Reva A.; Richardson, John G.; Kostelnik, Kevin M.; Sloan, Paul A.

    2007-02-06T23:59:59.000Z

    Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create subterranean barriers for containing and treating buried waste and its effluents. The multiple female interlock structures enable the barriers to be varied around subsurface objects and to form barrier sidewalls. The barrier may be used for treating and monitoring a zone of interest.

  18. Subsurface materials management and containment system, components thereof and methods relating thereto

    DOE Patents [OSTI]

    Nickelson, Reva A.; Richardson, John G.; Kostelnik, Kevin M.; Sloan, Paul A.

    2006-04-18T23:59:59.000Z

    Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create subterranean barriers for containing and treating buried waste and its effluents. The multiple female interlock structures enable the barriers to be varied around subsurface objects and to form barrier sidewalls. The barrier may be used for treating and monitoring a zone of interest.

  19. Subsurface materials management and containment system

    DOE Patents [OSTI]

    Nickelson, Reva A.; Richardson, John G.; Kostelnik, Kevin M.; Sloan, Paul A.

    2006-10-17T23:59:59.000Z

    Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create subterranean barriers for containing and treating buried waste and its effluents. The multiple female interlock structures enable the barriers to be varied around subsurface objects and to form barrier sidewalls. The barrier may be used for treating and monitoring a zone of interest.

  20. Subsurface materials management and containment system

    DOE Patents [OSTI]

    Nickelson, Reva A.; Richardson, John G.; Kosteinik, Kevin M.; Sloan, Paul A.

    2004-07-06T23:59:59.000Z

    Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create subterranean barriers for containing and treating buried waste and its effluents. The multiple female interlock structures enable the barriers to be varied around subsurface objects and to form barrier sidewalls. The barrier may be used for treating and monitoring a zone of interest.

  1. Structuring Structural Operational

    E-Print Network [OSTI]

    Mousavi, Mohammad

    aan de Technische Universiteit Eindhoven, op gezag van de Rector Magnificus, prof.dr.ir. C.J. van.A. Reniers CIPDATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Mousavi, MohammadReza Structuring Structural Operational Semantics / MohammadReza Mousavi. Eindhoven : Technische Universiteit Eindhoven, 2005

  2. Structuring Structural Operational

    E-Print Network [OSTI]

    Reniers, Michel

    aan de Technische Universiteit Eindhoven, op gezag van de Rector Magnificus, prof.dr.ir. C.J. van.A. Reniers CIP-DATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Mousavi, MohammadReza Structuring Structural Operational Semantics / MohammadReza Mousavi. - Eindhoven : Technische Universiteit Eindhoven, 2005

  3. alcohol ignition interlock: Topics by E-print Network

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

    on the Fusion Ignition Research Experiment (FIRE), a tokamak designed for burning plasma research. Engineering 58 The National Ignition Campaign Presentation to Plasma Physics and...

  4. Laser bandwidth interlock capable of single pulse detection and rejection

    DOE Patents [OSTI]

    Armstrong, James P; Telford, Steven James; Lanning, Rodney Kay; Bayramian, Andrew James

    2012-10-09T23:59:59.000Z

    A pulse of laser light is switched out of a pulse train and spatially dispersed into its constituent wavelengths. The pulse is collimated to a suitable size and then diffracted by high groove density multilayer dielectric gratings. This imparts a different angle to each individual wavelength so that, when brought to the far field with a lens, the colors have spread out in a linear arrangement. The distance between wavelengths (resolution) can be tailored for the specific laser and application by altering the number of times the beam strikes the diffraction gratings, the groove density of the gratings and the focal length of the lens. End portions of the linear arrangement are each directed to a respective detector, which converts the signal to a 1 if the level meets a set-point, and a 0 if the level does not. If both detectors produces a 1, then the pulse train is allowed to propagate into an optical system.

  5. BaBar Note 323 Temperature Monitoring and Interlocks

    E-Print Network [OSTI]

    supplies. #12;Contents 1 Introduction 3 1.1 HDI Thermal Characteristics in order to verify normal operation of the front-end electronics and its cooling system, to track thermal estimates for this project. 1.1 HDI Thermal Characteristics The SVT cooling system is described in Reference

  6. Joining mechanism with stem tension and interlocked compression ring

    SciTech Connect (OSTI)

    James, Allister W.; Morrison, Jay A.

    2012-09-04T23:59:59.000Z

    A stem (34) extends from a second part (30) through a hole (28) in a first part (22). A groove (38) around the stem provides a non-threaded contact surface (42) for a ring element (44) around the stem. The ring element exerts an inward force against the non-threaded contact surface at an angle that creates axial tension (T) in the stem, pulling the second part against the first part. The ring element is formed of a material that shrinks relative to the stem by sintering. The ring element may include a split collet (44C) that fits partly into the groove, and a compression ring (44E) around the collet. The non-threaded contact surface and a mating distal surface (48) of the ring element may have conic geometries (64). After shrinkage, the ring element is locked onto the stem.

  7. Abort interlock diagnostic for protection of APS vacuum chamber

    SciTech Connect (OSTI)

    Decker, G.

    1993-01-01T23:59:59.000Z

    The Advanced Photon Source (APS) vacuum system has been designed to be passively safe from bending magnet radiation heating at positron beam currents up to 30 mA. Above this value, certain components may be damaged from vertical beam missteering, although work is proceeding to raise the safe current threshold. Because of this, a system for preventing the misalignment of high power density beams is required. This report details a system for protection from dipole radiation only. Work on a system for ID radiation is continuing.

  8. Abort interlock diagnostic for protection of APS vacuum chamber

    SciTech Connect (OSTI)

    Decker, G.

    1993-06-01T23:59:59.000Z

    The Advanced Photon Source (APS) vacuum system has been designed to be passively safe from bending magnet radiation heating at positron beam currents up to 30 mA. Above this value, certain components may be damaged from vertical beam missteering, although work is proceeding to raise the safe current threshold. Because of this, a system for preventing the misalignment of high power density beams is required. This report details a system for protection from dipole radiation only. Work on a system for ID radiation is continuing.

  9. Board Interlocks and the Diffusion of Strategic Actions

    E-Print Network [OSTI]

    Lamb, Nai Hua

    2014-04-10T23:59:59.000Z

    of DOCTOR OF PHILOSOPHY Chair of Committee, Laszlo Tihanyi Committee Members, Michael A. Hitt R. Duane Ireland Victor Willson Head of Department, Ricky W. Griffin May 2014 Major Subject: Management Copyright 2014 Nai Hua Lamb ii... husband, Jason v ACKNOWLEDGMENTS I would like to thank my committee chair, Dr. Laszlo Tihanyi, and my committee members, Dr. Mike Hitt, Dr. Duane Ireland, and Dr. Vic Willson. My chair, Dr. Tihanyi, has been especially instrumental in guiding me...

  10. EURIS, a Speci cation Method for Distributed Interlockings

    E-Print Network [OSTI]

    Grant, P. W.

    system; UniS- pec 1 Introduction The control and management of a railway system consists of three is a medium between the infrastructure at the one side, and the logistic layer and its interfaces at the other side. Part of the checks on safety may be performed in the logistic layer, but the ultimate

  11. Ninebrane structures

    E-Print Network [OSTI]

    Hisham Sati

    2015-01-16T23:59:59.000Z

    String structures in degree four are associated with cancellation of anomalies of string theory in ten dimensions. Fivebrane structures in degree eight have recently been shown to be associated with cancellation of anomalies associated to the NS5-brane in string theory as well as the M5-brane in M-theory. We introduce and describe "Ninebrane structures" in degree twelve and demonstrate how they capture some anomaly cancellation phenomena in M-theory. Along the way we also define certain variants, considered as intermediate cases in degree nine and ten, which we call "2-Orientation" and "2-Spin structures", respectively. As in the lower degree cases, we also discuss the natural twists of these structures and characterize the corresponding topological groups associated to each of the structures, which likewise admit refinements to differential cohomology.

  12. Structural and mechanistic insights into Mcm2-7 double-hexamer assembly and function

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

    Sun, Jingchuan; Li, Huilin; Fernandez-Cid, Alejandra; Riera, Alberto; Tognetti, Sivia; Yuan, Zuanning; Stillman, Bruce; Speck, Christian

    2014-10-15T23:59:59.000Z

    Eukaryotic cells license each DNA replication origin during G1 phase by assembling a prereplication complex that contains a Mcm27 (minichromosome maintenance proteins 27) double hexamer. During S phase, each Mcm27 hexamer forms the core of a replicative DNA helicase. However, the mechanisms of origin licensing and helicase activation are poorly understood. The helicase loaders ORCCdc6 function to recruit a single Cdt1Mcm27 heptamer to replication origins prior to Cdt1 release and ORCCdc6Mcm27 complex formation, but how the second Mcm27 hexamer is recruited to promote double-hexamer formation is not well understood. Here, structural evidence for intermediates consisting of an ORCCdc6Mcm27 complex andmorean ORCCdc6Mcm27Mcm27 complex are reported, which together provide new insights into DNA licensing. Detailed structural analysis of the loaded Mcm27 double-hexamer complex demonstrates that the two hexamers are interlocked and misaligned along the DNA axis and lack ATP hydrolysis activity that is essential for DNA helicase activity. Moreover, we show that the head-to-head juxtaposition of the Mcm27 double hexamer generates a new protein interaction surface that creates a multisubunit-binding site for an S-phase protein kinase that is known to activate DNA replication. The data suggest how the double hexamer is assembled and how helicase activity is regulated during DNA licensing, with implications for cell cycle control of DNA replication and genome stability.less

  13. Structural and mechanistic insights into Mcm2-7 double-hexamer assembly and function

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

    Sun, Jingchuan [Brookhaven National Laboratory (BNL), Upton, NY (United States); Li, Huilin [Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States); Fernandez-Cid, Alejandra [Imperial College Faculty of Medicine, London (United Kingdom). DNA Replication Group; Riera, Alberto [Imperial College Faculty of Medicine, London (United Kingdom). MRC Clinical Sciences Centre; Tognetti, Sivia [Imperial College Faculty of Medicine, London (United Kingdom). MRC Clinical Sciences Centre; Yuan, Zuanning [Stony Brook Univ., Stony Brook, NY (United States); Stillman, Bruce [Cold Spring Harbor Lab., NY (United States); Speck, Christian [Imperial College Faculty of Medicine, London (United Kingdom). DNA Replication Group

    2014-10-15T23:59:59.000Z

    Eukaryotic cells license each DNA replication origin during G1 phase by assembling a prereplication complex that contains a Mcm27 (minichromosome maintenance proteins 27) double hexamer. During S phase, each Mcm27 hexamer forms the core of a replicative DNA helicase. However, the mechanisms of origin licensing and helicase activation are poorly understood. The helicase loaders ORCCdc6 function to recruit a single Cdt1Mcm27 heptamer to replication origins prior to Cdt1 release and ORCCdc6Mcm27 complex formation, but how the second Mcm27 hexamer is recruited to promote double-hexamer formation is not well understood. Here, structural evidence for intermediates consisting of an ORCCdc6Mcm27 complex and an ORCCdc6Mcm27Mcm27 complex are reported, which together provide new insights into DNA licensing. Detailed structural analysis of the loaded Mcm27 double-hexamer complex demonstrates that the two hexamers are interlocked and misaligned along the DNA axis and lack ATP hydrolysis activity that is essential for DNA helicase activity. Moreover, we show that the head-to-head juxtaposition of the Mcm27 double hexamer generates a new protein interaction surface that creates a multisubunit-binding site for an S-phase protein kinase that is known to activate DNA replication. The data suggest how the double hexamer is assembled and how helicase activity is regulated during DNA licensing, with implications for cell cycle control of DNA replication and genome stability.

  14. Deployable structures

    E-Print Network [OSTI]

    Hernndez Merchan, Carlos Henrique

    1987-01-01T23:59:59.000Z

    This thesis has the purpose of describing the meaning and applications of deployable structures (making emphasis in the scissor-hinged and sliding mechanisms.) and the development of new geometries, details, and mechanisms ...

  15. Structured Finance

    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 solid ... Strengthening aStructure ofof the CompleteStructure

  16. Nanocrystal structures

    DOE Patents [OSTI]

    Eisler, Hans J. (Stoneham, MA); Sundar, Vikram C. (Stoneham, MA); Walsh, Michael E. (Everett, MA); Klimov, Victor I. (Los Alamos, NM); Bawendi, Moungi G. (Cambridge, MA); Smith, Henry I. (Sudbury, MA)

    2008-12-30T23:59:59.000Z

    A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.

  17. Nanocrystal structures

    DOE Patents [OSTI]

    Eisler, Hans J.; Sundar, Vikram C.; Walsh, Michael E.; Klimov, Victor I.; Bawendi, Moungi G.; Smith, Henry I.

    2006-12-19T23:59:59.000Z

    A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group IIVI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.

  18. Crystal Structure of a Complex between Amino and Carboxy Terminal Fragments of mDia1: Insights into Autoinhibition of Diaphanous-Related Formins

    SciTech Connect (OSTI)

    Nezami, A.; Poy, F; Toms, A; Zheng, W; Eck, M

    2010-01-01T23:59:59.000Z

    Formin proteins direct the nucleation and assembly of linear actin filaments in a variety of cellular processes using their conserved formin homology 2 (FH2) domain. Diaphanous-related formins (DRFs) are effectors of Rho-family GTPases, and in the absence of Rho activation they are maintained in an inactive state by intramolecular interactions between their regulatory N-terminal region and a C-terminal segment referred to as the DAD domain. Although structures are available for the isolated DAD segment in complex with the interacting region in the N-terminus, it remains unclear how this leads to inhibition of actin assembly by the FH2 domain. Here we describe the crystal structure of the N-terminal regulatory region of formin mDia1 in complex with a C-terminal fragment containing both the FH2 and DAD domains. In the crystal structure and in solution, these fragments form a tetrameric complex composed of two interlocking N+C dimers. Formation of the tetramer is likely a consequence of the particular N-terminal construct employed, as we show that a nearly full-length mDia1 protein is dimeric, as are other autoinhibited N+C complexes containing longer N-terminal fragments. The structure provides the first view of the intact C-terminus of a DRF, revealing the relationship of the DAD to the FH2 domain. Delineation of alternative dimeric N+C interactions within the tetramer provides two general models for autoinhibition in intact formins. In both models, engagement of the DAD by the N-terminus is incompatible with actin filament formation on the FH2, and in one model the actin binding surfaces of the FH2 domain are directly blocked by the N-terminus.

  19. Superconducting structure

    DOE Patents [OSTI]

    Kwon, Chuhee (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Foltyn, Stephen R. (Los Alamos, NM)

    2003-04-01T23:59:59.000Z

    A superconductive structure including a dielectric oxide substrate, a thin buffer layer of a superconducting material thereon; and, a layer of a rare earth-barium-copper oxide superconducting film thereon the thin layer of yttrium-barium-copper oxide, the rare earth selected from the group consisting of samarium, gadolinium, ytterbium, erbium, neodymium, dysprosium, holmium, lutetium, a combination of more than one element from the rare earth group and a combination of one or more elements from the rare earth group with yttrium, the buffer layer of superconducting material characterized as having chemical and structural compatibility with the dielectric oxide substrate and the rare earth-barium-copper oxide superconducting film is provided.

  20. Terminal structure

    DOE Patents [OSTI]

    Schmidt, Frank (Langenhagen, DE); Allais, Arnaud (Hannover, DE); Mirebeau, Pierre (Villebon sur Yvette, FR); Ganhungu, Francois (Vieux-Reng, FR); Lallouet, Nicolas (Saint Martin Boulogne, FR)

    2009-10-20T23:59:59.000Z

    A terminal structure (2) for a superconducting cable (1) is described. It consists of a conductor (2a) and an insulator (2b) that surrounds the conductor (2a), wherein the superconducting cable (1) has a core with a superconducting conductor (5) and a layer of insulation that surrounds the conductor (5), and wherein the core is arranged in such a way that it can move longitudinally in a cryostat. The conductor (2a) of the terminal structure (2) is electrically connected with the superconducting conductor (5) or with a normal conductor (6) that is connected with the superconducting conductor (5) by means of a tubular part (7) made of an electrically conductive material, wherein the superconducting conductor (5) or the normal conductor (6) can slide in the part (7) in the direction of the superconductor.

  1. Superconducting Structure

    DOE Patents [OSTI]

    Kwon, Chuhee (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Foltyn, Stephen R. (Los Alamos, NM)

    2005-09-13T23:59:59.000Z

    A superconductive structure including a dielectric oxide substrate, a thin buffer layer of a superconducting material thereon; and, a layer of a rare earth-barium-copper oxide superconducting film thereon the thin layer of yttrium-barium-copper oxide, the rare earth selected from the group consisting of samarium, gadolinium, ytterbium, erbium, neodymium, dysprosium, holmium, lutetium, a combination of more than one element from the rare earth group and a combination of one or more elements from the rare earth group with yttrium, the buffer layer of superconducting material characterized as having chemical and structural compatibility with the dielectric oxide substrate and the rare earth-barium-copper oxide superconducting film is provided.

  2. Airfoil structure

    DOE Patents [OSTI]

    Frey, G.A.; Twardochleb, C.Z.

    1998-01-13T23:59:59.000Z

    Past airfoil configurations have been used to improve aerodynamic performance and engine efficiencies. The present airfoil configuration further increases component life and reduces maintenance by reducing internal stress within the airfoil itself. The airfoil includes a chord and a span. Each of the chord and the span has a bow being summed to form a generally ``C`` configuration of the airfoil. The generally ``C`` configuration includes a compound bow in which internal stresses resulting from a thermal temperature gradient are reduced. The structural configuration reduces internal stresses resulting from thermal expansion. 6 figs.

  3. Airfoil structure

    DOE Patents [OSTI]

    Frey, Gary A. (Poway, CA); Twardochleb, Christopher Z. (Alpine, CA)

    1998-01-01T23:59:59.000Z

    Past airfoil configurations have been used to improve aerodynamic performance and engine efficiencies. The present airfoil configuration further increases component life and reduces maintenance by reducing internal stress within the airfoil itself. The airfoil includes a chord and a span. Each of the chord and the span has a bow being summed to form a generally "C" configuration of the airfoil. The generally "C" configuration includes a compound bow in which internal stresses resulting from a thermal temperature gradient are reduced. The structural configuration reduces internal stresses resulting from thermal expansion.

  4. Variably porous structures

    DOE Patents [OSTI]

    Braun, Paul V. (Savoy, IL); Yu, Xindi (Urbana, IL)

    2011-01-18T23:59:59.000Z

    A method of making a monolithic porous structure, comprises electrodepositing a material on a template; removing the template from the material to form a monolithic porous structure comprising the material; and electropolishing the monolithic porous structure.

  5. NUCLEAR STRUCTURE DATABASE

    E-Print Network [OSTI]

    Firestone, R.B.

    2010-01-01T23:59:59.000Z

    CALIFORNIA NUCLEAR STRUCTURE DATABASE R. B. Firestone and E.11089 NUCLEAR STRUCTURE DATABASE by R.B. Firestone and E.iii- NUCLEAR STRUCTURE DATABASE R.B Firestone and E. Browne

  6. Energy Management A Program of Energy Conservation for the Community College Facility

    E-Print Network [OSTI]

    Authors, Various

    2011-01-01T23:59:59.000Z

    needed (temperature lockout - interlock prevents overheatingneeded (temperature lockout - interlock prevents overcooling

  7. Sandia Energy - Structural Health Monitoring

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

    Structural Health Monitoring Home Stationary Power Energy Conversion Efficiency Wind Energy Materials, Reliability, & Standards Structural Health Monitoring Structural Health...

  8. Earth Structure Introduction

    E-Print Network [OSTI]

    Earth Structure Introduction Earth Structure (2nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm WW Norton, unless noted otherwise #12; EarthStructure (2nd ed) 210/4/2010 Aerial views #12; EarthStructure (2nd ed) 310/4/2010 http://www.globalchange.umich.edu/Ben/ES/ #12

  9. Advanced Containment System

    DOE Patents [OSTI]

    Kostelnik, Kevin M. (Idaho Falls, ID); Kawamura, Hideki (Tokyo, JP); Richardson, John G. (Idaho Falls, ID); Noda, Masaru (Tokyo, JP)

    2004-10-12T23:59:59.000Z

    An advanced containment system for containing buried waste and associated leachate. A trench is dug on either side of the zone of interest containing the buried waste so as to accommodate a micro tunnel boring machine. A series of small diameter tunnels are serially excavated underneath the buried waste. The tunnels are excavated by the micro tunnel boring machine at a consistent depth and are substantially parallel to each other. As tunneling progresses, steel casing sections are connected end to end in the excavated portion of the tunnel so that a steel tube is formed. Each casing section has complementary interlocking structure running its length that interlocks with complementary interlocking structure on the adjacent casing section. Thus, once the first tube is emplaced, placement of subsequent tubes is facilitated by the complementary interlocking structure on the adjacent, previously placed, casing sections.

  10. Advanced Containment System

    DOE Patents [OSTI]

    Kostelnik, Kevin M. (Idaho Falls, ID); Kawamura, Hideki (Tokyo, JP); Richardson, John G. (Idaho Falls, ID); Noda, Masaru (Tokyo, JP)

    2005-05-24T23:59:59.000Z

    An advanced containment system for containing buried waste and associated leachate. A trench is dug on either side of the zone of interest containing the buried waste so as to accommodate a micro tunnel boring machine. A series of small diameter tunnels are serially excavated underneath the buried waste. The tunnels are excavated by the micro tunnel boring machine at a consistent depth and are substantially parallel to each other. As tunneling progresses, steel casing sections are connected end to end in the excavated portion of the tunnel so that a steel tube is formed. Each casing section has complementary interlocking structure running its length that interlocks with complementary interlocking structure on the adjacent casing section. Thus, once the first tube is emplaced, placement of subsequent tubes is facilitated by the complementary interlocking structure on the adjacent, previously placed, casing sections.

  11. Cross-directional interlocking of rolls in an air press of a papermaking machine

    DOE Patents [OSTI]

    Beck, David A.; Gorshe, Thomas

    2003-05-13T23:59:59.000Z

    An air press for pressing a paper web is composed of a plurality of rolls including at least a first roll and a second roll. The first roll and the second roll are positioned adjacent one another and form a first nip therebetween. Further, the first roll and the second roll each have a roll end, the roll end of the first roll adjoining the roll end of the second roll. A bevel plate is attached to the roll end of the first roll, the bevel plate having at least a first angled plate face. A seal ring is positioned adjacent the roll end of the second roll, the seal ring being juxtaposed to the bevel plate. The seal ring has at least a first angled ring face, and the first angled ring face mates with the first angled plate face.

  12. & Engineering an Ignition Interlock Into Kinesin Biomolecular motors, including the linear motor kinesin, have

    E-Print Network [OSTI]

    Lignocellulosic biomass offers an attractive option for production of bioethanol and other chemicals, being abundant and renewable. Economically feasible production of bioethanol from lignocellu- losic materials

  13. Structuring beyond architecture

    E-Print Network [OSTI]

    Foxe, David M

    2006-01-01T23:59:59.000Z

    This thesis explores the layering and negotiation of structural devices in urban settings. Its point of departure is a series of patterns of how structural design and urban design interact and overlap, from which are ...

  14. Crystal Structure of Cascade

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

    ribbon-like structure (Figure 1). This structure is facilitated by rotation of nucleotides out of the duplex region at six base pair intervals and stabilized by the highly...

  15. Neutron reflecting supermirror structure

    DOE Patents [OSTI]

    Wood, James L. (Drayton Plains, MI)

    1992-01-01T23:59:59.000Z

    An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources.

  16. Neutron reflecting supermirror structure

    DOE Patents [OSTI]

    Wood, J.L.

    1992-12-01T23:59:59.000Z

    An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. 2 figs.

  17. Structural system identification: Structural dynamics model validation

    SciTech Connect (OSTI)

    Red-Horse, J.R.

    1997-04-01T23:59:59.000Z

    Structural system identification is concerned with the development of systematic procedures and tools for developing predictive analytical models based on a physical structure`s dynamic response characteristics. It is a multidisciplinary process that involves the ability (1) to define high fidelity physics-based analysis models, (2) to acquire accurate test-derived information for physical specimens using diagnostic experiments, (3) to validate the numerical simulation model by reconciling differences that inevitably exist between the analysis model and the experimental data, and (4) to quantify uncertainties in the final system models and subsequent numerical simulations. The goal of this project was to develop structural system identification techniques and software suitable for both research and production applications in code and model validation.

  18. Catalytic distillation structure

    DOE Patents [OSTI]

    Smith, Jr., Lawrence A. (Bellaire, TX)

    1984-01-01T23:59:59.000Z

    Catalytic distillation structure for use in reaction distillation columns, a providing reaction sites and distillation structure and consisting of a catalyst component and a resilient component intimately associated therewith. The resilient component has at least about 70 volume % open space and being present with the catalyst component in an amount such that the catalytic distillation structure consist of at least 10 volume % open space.

  19. Structural health monitoring for ship structures

    SciTech Connect (OSTI)

    Farrar, Charles [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory; Angel, Marian [Los Alamos National Laboratory; Bement, Matthew [Los Alamos National Laboratory; Salvino, Liming [NSWC, CADEROCK

    2009-01-01T23:59:59.000Z

    Currently the Office of Naval Research is supporting the development of structural health monitoring (SHM) technology for U.S. Navy ship structures. This application is particularly challenging because of the physical size of these structures, the widely varying and often extreme operational and environmental conditions associated with these ships missions, lack of data from known damage conditions, limited sensing that was not designed specifically for SHM, and the management of the vast amounts of data that can be collected during a mission. This paper will first define a statistical pattern recognition paradigm for SHM by describing the four steps of (1) Operational Evaluation, (2) Data Acquisition, (3) Feature Extraction, and (4) Statistical Classification of Features as they apply to ship structures. Note that inherent in the last three steps of this process are additional tasks of data cleansing, compression, normalization and fusion. The presentation will discuss ship structure SHM challenges in the context of applying various SHM approaches to sea trials data measured on an aluminum multi-hull high-speed ship, the HSV-2 Swift. To conclude, the paper will discuss several outstanding issues that need to be addressed before SHM can make the transition from a research topic to actual field applications on ship structures and suggest approaches for addressing these issues.

  20. Structural genomics - A goldmine of blueprints for structure...

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

    - A goldmine of blueprints for structure-based drug design. Structural genomics - A goldmine of blueprints for structure-based drug design. Abstract: In late 2007 the National...

  1. Identifying structural damage from images

    E-Print Network [OSTI]

    Chen, ZhiQiang

    2009-01-01T23:59:59.000Z

    sensor-based structural health monitoring: Framework,al. , 2003), and structural health monitoring (e.g. Gandhiintroduction to structural health monitoring. Philosophical

  2. Rod-like plasmonic nanoparticles as optical building blocks: how differences in particle shape and structural geometry influence optical signal

    SciTech Connect (OSTI)

    Stender, Anthony [Ames Laboratory

    2013-05-15T23:59:59.000Z

    Gold nanoparticles, particularly those with an anisotropic shape, have become a popular optical probe for experiments involving work on the nanoscale. However, to carry out such delicate and intricate experiments, it is first necessary to understand the detailed behavior of individual nanoparticles. In this series of experiments, optical and electron microscopy were utilized for the characterization of individual nanoparticles and small assemblies of nanoparticles. In the first experiment, gold nanorods were investigated. Single, isolated nanorods exhibit two maxima of localized surface plasmon resonance (LSPR), which are associated with the two nanorod axes. Upon the physical rotation of a nanorod at one of its LSPR wavelengths under polarized illumination, the optical behavior varies in a sinusoidal fashion. A dimer of nanorods exhibits optical behavior quite similar to a nanorod, except the LSPR maxima are shifted and broader. Under differential interference contrast (DIC) microscopy, a pair of nanorods separated by a distance below the diffraction limit can be distinguished from a single nanorod due to its optical behavior upon rotation. Dark field microscopy is unable to distinguish the two geometries. For the second set of experiments, the optical behavior of single gold nanorods at non-plasmonic wavelengths was investigated. The same nanorod was rotated with respect to a polarized light source under DIC, dark field, and polarized light microscopy. DIC microscopy was found to produce diffraction pattern peaks at non-plasmonic wavelengths, which could be altered by adjusting the setting of the polarizer. In the third set of experiments, the optical behavior of a single gold dumbbell and several simple dumbbell geometries were investigated with microscopy and simulations. The single dumbbell displayed behavior quite similar to that of a nanorod, but dumbbells exhibit a shift in both LSPR wavebands. Moreover, the shape of dumbbell particles allows them to interlock with one another quite easily. The dimers that form as a result display optical behavior that differs from what has been previously reported about nanorod dimers. Simulated surface charge density patterns reveal that hybridization of LSPR modes occurs readily along the lobes of individual dumbbells in some situations. A pentamer of dumbbells also displays hybridization of modes, and hot spots are observed at junctions between pairings of dumbbells. In the final set of experiments, the assembly behavior of nanoparticles in solution was observed in real time. In general, large assemblies of nanoparticles display backbone-like rigidity, but an interesting variety of movements is permitted within the larger structures.

  3. An overview of wireless structural health monitoring for civil structures

    E-Print Network [OSTI]

    Lynch, Jerome P.

    An overview of wireless structural health monitoring for civil structures BY JEROME PETER LYNCH health monitoring systems that interrogate structural data for signs of damage. After the hardware computing; wireless telemetry; structural health monitoring 1. Introduction Society's built environment

  4. Catalytic distillation structure

    DOE Patents [OSTI]

    Smith, L.A. Jr.

    1984-04-17T23:59:59.000Z

    Catalytic distillation structure is described for use in reaction distillation columns, and provides reaction sites and distillation structure consisting of a catalyst component and a resilient component intimately associated therewith. The resilient component has at least about 70 volume % open space and is present with the catalyst component in an amount such that the catalytic distillation structure consists of at least 10 volume % open space. 10 figs.

  5. Cosmogony of Generic Structures

    E-Print Network [OSTI]

    T. Buchert

    1994-12-19T23:59:59.000Z

    The problem of formation of generic structures in the Universe is addressed, whereby first the kinematics of inertial continua for coherent initial data is considered. The generalization to self--gravitating continua is outlined focused on the classification problem of singularities and metamorphoses arising in the density field. Self--gravity gives rise to an internal hierarchy of structures, and, dropping the assumption of coherence, also to an external hierarchy of structures dependent on the initial power spectrum of fluctuations.

  6. Protein Structure Analysis Iosif Vaisman

    E-Print Network [OSTI]

    Vaisman, Iosif

    Biology Crystallography NMR Spectroscopy Protein Informatics Structural Bioinformatics Computational Structural Biology Protein Engineering Protein Design Drug Design Molecular Modeling Proteomics Structural Weissig (Eds) Structural bioinformatics Hoboken, N.J. : Wiley-Liss, 2003. Jenny Gu, Philip Bourne (Eds

  7. Structural building response review

    SciTech Connect (OSTI)

    Not Available

    1980-01-15T23:59:59.000Z

    The integrity of a nuclear power plant during a postulated seismic event is required to protect the public against radiation. Therefore, a detailed set of seismic analyses of various structures and equipment is performed while designing a nuclear power plant. This report describes the structural response analysis method, including the structural model, soil-structure interaction as it relates to structural models, methods for seismic structural analysis, numerical integration methods, methods for non-seismic response analysis approaches for various response combinations, structural damping values, nonlinear response, uncertainties in structural properties, and structural response analysis using random properties. The report describes the state-of-the-art in these areas for nuclear power plants. It also details the past studies made at Sargent and Lundy to evaluate different alternatives and the conclusions reached for the specific purposes that those studies were intended. These results were incorporated here because they fall into the general scope of this report. The scope of the present task does not include performing new calculations.

  8. Controlling Graphene's Electronic Structure

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

    Controlling Graphene's Electronic Structure Print Wednesday, 25 April 2007 00:00 Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has...

  9. Controlling Graphene's Electronic Structure

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

    Controlling Graphene's Electronic Structure Print Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has enormous potential for use in...

  10. Effective Incentive Structures

    Broader source: Energy.gov [DOE]

    Presents an in-depth look at effective incentive structures, how to clarify your program goals, and tips to plan for the long term.

  11. Mitotic chromosome structure

    SciTech Connect (OSTI)

    Heermann, Dieter W., E-mail: heermann@tphys.uni-heidelberg.de

    2012-07-15T23:59:59.000Z

    Mounting evidence is compiling linking the physical organizational structure of chromosomes and the nuclear structure to biological function. At the base of the physical organizational structure of both is the concept of loop formation. This implies that physical proximity within chromosomes is provided for otherwise distal genomic regions and thus hierarchically organizing the chromosomes. Together with entropy many experimental observations can be explained with these two concepts. Among the observations that can be explained are the measured physical extent of the chromosomes, their shape, mechanical behavior, the segregation into territories (chromosomal and territories within chromosomes), the results from chromosome conformation capture experiments, as well as linking gene expression to structural organization.

  12. Structural Health Monitoring

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

    Test Structures & Applications Contact Institute Director Charles Farrar (505) 663-5330 Email UCSD EI Director Michael Todd (858) 534-5951 Professional Staff Assistant Jutta Kayser...

  13. Structural Health Monitoring

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

    regarding the integrity of the structure. Contact Institute Director Charles Farrar (505) 663-5330 Email UCSD EI Director Michael Todd (858) 534-5951 Professional Staff...

  14. Neutron reflecting supermirror structure

    DOE Patents [OSTI]

    Wood, James L. (Drayton Plains, MI)

    1992-01-01T23:59:59.000Z

    An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. One layer of each set of bilayers consist of titanium, and the second layer of each set of bilayers consist of an alloy of nickel with carbon interstitially present in the nickel alloy.

  15. Piecewise training for structured prediction

    E-Print Network [OSTI]

    Sutton, Charles; McCallum, Andrew

    2009-01-01T23:59:59.000Z

    margin methods for structured prediction. In Internationalaccuracy computational gene prediction. PLoS Computationaltraining for structured prediction Charles Sutton Andrew

  16. Calcium silicate insulation structure

    DOE Patents [OSTI]

    Kollie, Thomas G. (Oak Ridge, TN); Lauf, Robert J. (Oak Ridge, TN)

    1995-01-01T23:59:59.000Z

    An insulative structure including a powder-filled evacuated casing utilizes a quantity of finely divided synthetic calcium silicate having a relatively high surface area. The resultant structure-provides superior thermal insulating characteristics over a broad temperature range and is particularly well-suited as a panel for a refrigerator or freezer or the insulative barrier for a cooler or a insulated bottle.

  17. STELLAR STRUCTURE AND EVOLUTION

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    STELLAR STRUCTURE AND EVOLUTION O.R. Pols September 2009 #12;#12;Preface These lecture notes application to the theory of stellar structure and evolution, at a level appro- priate for a third and Evolution, 1990, Springer-Verlag, ISBN 3-540-50211-4 (KIPPENHAHN; K&W) Some sections of this book are still

  18. & Education Structure 2 Parking

    E-Print Network [OSTI]

    Caughman, John

    Cinema East Hall University Technology Services Honors Stratford Building Parkway Science Building 1N Kononia House Fourth Ave Building Art Building Science & Education Center Parking Structure 2 Helen Gordon Child Center Science Research & Teaching Center Parking Structure 3 Ho man Hall West

  19. Essays on market structure

    E-Print Network [OSTI]

    Ruan, Feng

    2012-06-26T23:59:59.000Z

    Some of the most important work in the development of economic theory is associated with the study of market structure. In essence, most markets are two-sided. For example, product markets connect tens of thousands of ...

  20. Optimization of outrigger structures

    E-Print Network [OSTI]

    Lame, Ali

    2008-01-01T23:59:59.000Z

    Designing a high rise building has its challenges. Different structural systems have been developed to control the lateral displacement of high rise buildings. One of these systems is called the outrigger which decreases ...

  1. Structure function monitor

    DOE Patents [OSTI]

    McGraw, John T. (Placitas, NM); Zimmer, Peter C. (Albuquerque, NM); Ackermann, Mark R. (Albuquerque, NM)

    2012-01-24T23:59:59.000Z

    Methods and apparatus for a structure function monitor provide for generation of parameters characterizing a refractive medium. In an embodiment, a structure function monitor acquires images of a pupil plane and an image plane and, from these images, retrieves the phase over an aperture, unwraps the retrieved phase, and analyzes the unwrapped retrieved phase. In an embodiment, analysis yields atmospheric parameters measured at spatial scales from zero to the diameter of a telescope used to collect light from a source.

  2. Structured luminescence conversion layer

    DOE Patents [OSTI]

    Berben, Dirk; Antoniadis, Homer; Jermann, Frank; Krummacher, Benjamin Claus; Von Malm, Norwin; Zachau, Martin

    2012-12-11T23:59:59.000Z

    An apparatus device such as a light source is disclosed which has an OLED device and a structured luminescence conversion layer deposited on the substrate or transparent electrode of said OLED device and on the exterior of said OLED device. The structured luminescence conversion layer contains regions such as color-changing and non-color-changing regions with particular shapes arranged in a particular pattern.

  3. Fire protection for relocatable structures

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    This standard supersedes DOE/EV-0043, ``Standard on Fire Protection for Portable Structures.`` It was revised to address the numerous types of relocatable structures, such as trailers, tension-supported structures, and tents being used by DOE and contractors.

  4. Investigating the durability of structures

    E-Print Network [OSTI]

    Saba, Dana (Dana Walid)

    2013-01-01T23:59:59.000Z

    The durability of structures is one of primary concerns in the engineering industry. Poor durability in design may result in a structure losing its performance to the extent where structural integrity is no longer satisfied ...

  5. Underground waste barrier structure

    DOE Patents [OSTI]

    Saha, Anuj J. (Hamburg, NY); Grant, David C. (Gibsonia, PA)

    1988-01-01T23:59:59.000Z

    Disclosed is an underground waste barrier structure that consists of waste material, a first container formed of activated carbonaceous material enclosing the waste material, a second container formed of zeolite enclosing the first container, and clay covering the second container. The underground waste barrier structure is constructed by forming a recessed area within the earth, lining the recessed area with a layer of clay, lining the clay with a layer of zeolite, lining the zeolite with a layer of activated carbonaceous material, placing the waste material within the lined recessed area, forming a ceiling over the waste material of a layer of activated carbonaceous material, a layer of zeolite, and a layer of clay, the layers in the ceiling cojoining with the respective layers forming the walls of the structure, and finally, covering the ceiling with earth.

  6. Structural power flow measurement

    SciTech Connect (OSTI)

    Falter, K.J.; Keltie, R.F.

    1988-12-01T23:59:59.000Z

    Previous investigations of structural power flow through beam-like structures resulted in some unexplained anomalies in the calculated data. In order to develop structural power flow measurement as a viable technique for machine tool design, the causes of these anomalies needed to be found. Once found, techniques for eliminating the errors could be developed. Error sources were found in the experimental apparatus itself as well as in the instrumentation. Although flexural waves are the carriers of power in the experimental apparatus, at some frequencies longitudinal waves were excited which were picked up by the accelerometers and altered power measurements. Errors were found in the phase and gain response of the sensors and amplifiers used for measurement. A transfer function correction technique was employed to compensate for these instrumentation errors.

  7. Tailoring PDC speckle structure

    E-Print Network [OSTI]

    G. Brida; M. Genovese; A. Meda; I. Ruo-Berchera; E. Predazzi

    2009-04-07T23:59:59.000Z

    Speckle structure of parametric down conversion light has recently received a large attention due to relevance in view of applications to quantum imaging The possibility of tailoring the speckle size by acting on the pump properties is an interesting tool for the applications to quantum imaging and in particular to the detection of weak object under shot-noise limit. Here we present a systematic detailed experimental study of the speckle structure produced in type II PDC with particular attention to its variation with pump beam properties.

  8. Tailoring PDC speckle structure

    E-Print Network [OSTI]

    Brida, G; Meda, A; Predazzi, E; Ruo-Berchera, I

    2008-01-01T23:59:59.000Z

    Speckle structure of parametric down conversion light has recently received a large attention due to relevance in view of applications to quantum imaging The possibility of tailoring the speckle size by acting on the pump properties is an interesting tool for the applications to quantum imaging and in particular to the detection of weak object under shot-noise limit. Here we present a systematic detailed experimental study of the speckle structure produced in type II PDC with particular attention to its variation with pump beam properties

  9. System and damage identification of civil structures

    E-Print Network [OSTI]

    Moaveni, Babak

    2007-01-01T23:59:59.000Z

    on Structural Health Monitoring . . . . . . . . . . . . . 6based approach to the structural health monitoring benchmarkapproach for ASCE structural health monitoring benchmark

  10. Housing And Mounting Structure

    DOE Patents [OSTI]

    Anderson, Gene R. (Albuquerque, NM); Armendariz, Marcelino G. (Albuquerque, NM); Baca, Johnny R.F. (Albuquerque, NM); Bryan, Robert P. (Albuquerque, NM); Carson, Richard F. (Albuquerque, NM); Duckett, III, Edwin B. (Albuquerque, NM); McCormick, Frederick B. (Albuquerque, NM); Miller, Gregory V. (Kansas City, MO); Peterson, David W. (Sandia Park, NM); Smith, Terrance T. (Albuquerque, NM)

    2005-03-08T23:59:59.000Z

    This invention relates to an optical transmitter, receiver or transceiver module, and more particularly, to an apparatus for connecting a first optical connector to a second optical connector. The apparatus comprises: (1) a housing having at least a first end and at least a second end, the first end of the housing capable of receiving the first optical connector, and the second end of the housing capable of receiving the second optical connector; (2) a longitudinal cavity extending from the first end of the housing to the second end of the housing; and (3) an electromagnetic shield comprising at least a portion of the housing. This invention also relates to an apparatus for housing a flexible printed circuit board, and this apparatus comprises: (1) a mounting structure having at least a first surface and a second surface; (2) alignment ridges along the first and second surfaces of the mounting structure, the alignment ridges functioning to align and secure a flexible printed circuit board that is wrapped around and attached to the first and second surfaces of the mounting structure; and (3) a series of heat sink ridges adapted to the mounting structure, the heat sink ridges functioning to dissipate heat that is generated from the flexible printed circuit board.

  11. Search for Turing structures

    SciTech Connect (OSTI)

    Borckmans, P.; Dewel, G.; Walgraef, D.; Katayama, Y.

    1987-09-01T23:59:59.000Z

    Albeit their prediction by Turing, chemical periodic stationary patterns under far from equilibrium conditions, which are considered as prototypes of dissipative structures, have not yet been observed in a clear-cut way. The authors here assess the situation and discuss the perturbative influence of convection on their formation and selection mechanisms.

  12. Biomembrane Structure Unit, Biochemistry

    E-Print Network [OSTI]

    Watts, Anthony

    and membrane proteins. However, the lack of essential high-resolution structural details at the molecular level Watts Abstract | Observing drugs and ligands at their site of action in membrane proteins is now targets in the future will be membrane proteins. This is, perhaps, not surprising, as most (~85

  13. Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth Monitoring

    E-Print Network [OSTI]

    Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth responses Structural monitoring structural health monitoring: Very few structural "health" monitoring and buildings Future directions and technology trends Structural Monitoring SystemsStructural Monitoring

  14. Air cathode structure manufacture

    DOE Patents [OSTI]

    Momyer, William R. (Palo Alto, CA); Littauer, Ernest L. (Los Altos Hills, CA)

    1985-01-01T23:59:59.000Z

    An improved air cathode structure for use in primary batteries and the like. The cathode structure includes a matrix active layer, a current collector grid on one face of the matrix active layer, and a porous, nonelectrically conductive separator on the opposite face of the matrix active layer, the collector grid and separator being permanently bonded to the matrix active layer. The separator has a preselected porosity providing low IR losses and high resistance to air flow through the matrix active layer to maintain high bubble pressure during operation of the battery. In the illustrated embodiment, the separator was formed of porous polypropylene. A thin hydrophobic film is provided, in the preferred embodiment, on the current collecting metal grid.

  15. Structured wafer for device processing

    SciTech Connect (OSTI)

    Okandan, Murat; Nielson, Gregory N

    2014-11-25T23:59:59.000Z

    A structured wafer that includes through passages is used for device processing. Each of the through passages extends from or along one surface of the structured wafer and forms a pattern on a top surface area of the structured wafer. The top surface of the structured wafer is bonded to a device layer via a release layer. Devices are processed on the device layer, and are released from the structured wafer using etchant. The through passages within the structured wafer allow the etchant to access the release layer to thereby remove the release layer.

  16. Structured wafer for device processing

    DOE Patents [OSTI]

    Okandan, Murat; Nielson, Gregory N

    2014-05-20T23:59:59.000Z

    A structured wafer that includes through passages is used for device processing. Each of the through passages extends from or along one surface of the structured wafer and forms a pattern on a top surface area of the structured wafer. The top surface of the structured wafer is bonded to a device layer via a release layer. Devices are processed on the device layer, and are released from the structured wafer using etchant. The through passages within the structured wafer allow the etchant to access the release layer to thereby remove the release layer.

  17. Solar Decathlon Technology Spotlight: Structural Insulated Panels

    Broader source: Energy.gov [DOE]

    Structural insulated panels (SIPs) are prefabricated structural elements used to build walls, ceilings, floors, and roofs.

  18. Explicit construction of universal structures Jan Hubicka

    E-Print Network [OSTI]

    St Andrews, University of

    Explicit construction of universal structures Jan Hubicka Charles University Prague Joint work with Jarik Nesetril Workshop on Homogeneous Structures 2011 Jan Hubicka Explicit construction of universal Explicit construction of universal structures #12;Universal relational structures By relational structures

  19. Regulation of Tall Structures (Indiana)

    Broader source: Energy.gov [DOE]

    A permit from the Department of Transportation is required for the construction or alteration of any structure higher than 200 feet above ground level, or structures near airports, highways,...

  20. Design approaches to structural optimization

    E-Print Network [OSTI]

    Tayar, Memduh Ali

    1986-01-01T23:59:59.000Z

    The objective of this thesis is to develop design approaches to structural optimization. In the example of three-dimensional grid structures, widely known as 'space frames', possible configurations are explored which ...

  1. A survey of structures on

    E-Print Network [OSTI]

    Choi, Suhyoung

    Euclidean geometry Spherical geometry Manifolds with geometric structures: manifolds need some canonical canonical descriptions.. Manifolds with (real) projective structures Outline Survey: Classical geometries's philosphy) Spherical geometry: Greek astronomy, Gauss, Riemann Hyperbolic geometry: Bolyai, Lobachevsky

  2. Protein Structure Analysis Iosif Vaisman

    E-Print Network [OSTI]

    Vaisman, Iosif

    Crystallography NMR Spectroscopy Protein Informatics Structural Bioinformatics Computational Structural Biology/ Proteins Alberts B, et al. Molecular Biology of the Cell. Proteins TTCCPSIVARSNFNVCRLPGTPEAICATYTGCIIIPGATCPGDYAN Hartl F.U. et al., Nature, 2011 Proteins Protein Science Biochemistry Biophysics Molecular Biology

  3. Protein Structure Analysis Iosif Vaisman

    E-Print Network [OSTI]

    Vaisman, Iosif

    Informatics Structural Bioinformatics Computational Structural Biology Protein Engineering Protein Design Drug/ Proteins Alberts B, et al. Molecular Biology of the Cell. Proteins TTCCPSIVARSNFNVCRLPGTPEAICATYTGCIIIPGATCPGDYAN Protein Science Biochemistry Biophysics Molecular Biology Crystallography NMR Spectroscopy Protein

  4. Work breakdown structure guide

    SciTech Connect (OSTI)

    Not Available

    1987-02-06T23:59:59.000Z

    Utilization of the work breakdown structure (WBS) technique is an effective aid in managing Department of Energy (DOE) programs and projects. The technique provides a framework for project management by focusing on the products that are being developed or constructed to solve technical problems. It assists both DOE and contractors in fulfilling their management responsibilities. This document provides guidance for use of the WBS technique for product oriented work identification and definition. It is one in a series of policy and guidance documents supporting DOE's project manaagement system.

  5. Structural Health Monitoring

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900SteepStrengthening northernDetermination ofTest Structures

  6. Controlling Graphene's Electronic Structure

    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 Administration would likeConstitution AndControlling Graphene's Electronic Structure

  7. Vacuum Structure and Potential

    E-Print Network [OSTI]

    J. X. Zheng-Johansson

    2007-04-02T23:59:59.000Z

    Based on overall experimental observations, especially the pair processes, I developed a model structure of the vacuum along with a basic-particle formation scheme begun in 2000 (with collaborator P-I Johansson). The model consists in that the vacuum is, briefly, filled of neutral but polarizable vacuuons, consisting each of a p-vaculeon and n- vaculeon of charges $+e$ and $-e$ of zero rest masses but with spin motions, assumed interacting each other with a Coulomb force. The model has been introduced in full in a book (Nova Sci, 2005) and referred to in a number of journal/E-print papers. I outline in this easier accessible paper the detailed derivation of the model and a corresponding quantitative determination of the vacuuon size.

  8. Structural health monitoring by ultrasonic guided waves

    E-Print Network [OSTI]

    Bartoli, Ivan

    2007-01-01T23:59:59.000Z

    and Viola, E. , Structural Health Monitoring of Multi-wireEncyclopedia of Structural Health Monitoring, C. Boller, F-D.L. (2001) Structural health monitoring system based on

  9. Effective Health Monitoring Strategies for Complex Structures /

    E-Print Network [OSTI]

    Haynes, Colin Michael

    2014-01-01T23:59:59.000Z

    to Optimization in Structural Health Monitoring, Proc. Worldaxioms of structural health monitoring, Proc. R. Soc. A.the future of structural health monitoring, Phil. Trans. R.

  10. Introduction to Structure and Dynamics: Inaugural Issue

    E-Print Network [OSTI]

    White, Douglas R.; Manlove, Robert; Colby, B. N.; Garfias, Robert; Bell, Duran

    2005-01-01T23:59:59.000Z

    the premier issue of Structure and Dynamics, an electronicFor this great boon, Structure and Dynamics in particular iselectronic journals, Structure and Dynamics will be widely

  11. Structure of the CRA-2014: Structure of the CRA-2014

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

    Structure of the CRA-2014 List of Figures Figure STRUCT- 1. CRA-2014 Pictorial Roadmap This page intentionally left blank. Acronyms and Abbreviations CCA Compliance...

  12. Crystal structure refinement with SHELXL

    SciTech Connect (OSTI)

    Sheldrick, George M., E-mail: gsheldr@shelx.uni-ac.gwdg.de [Department of Structural Chemistry, Georg-August Universitt Gttingen, Tammannstrae 4, Gttingen 37077 (Germany)

    2015-01-01T23:59:59.000Z

    New features added to the refinement program SHELXL since 2008 are described and explained. The improvements in the crystal structure refinement program SHELXL have been closely coupled with the development and increasing importance of the CIF (Crystallographic Information Framework) format for validating and archiving crystal structures. An important simplification is that now only one file in CIF format (for convenience, referred to simply as a CIF) containing embedded reflection data and SHELXL instructions is needed for a complete structure archive; the program SHREDCIF can be used to extract the .hkl and .ins files required for further refinement with SHELXL. Recent developments in SHELXL facilitate refinement against neutron diffraction data, the treatment of H atoms, the determination of absolute structure, the input of partial structure factors and the refinement of twinned and disordered structures. SHELXL is available free to academics for the Windows, Linux and Mac OS X operating systems, and is particularly suitable for multiple-core processors.

  13. Damage Detection in Plate Structures using Guided Ultrasonic Waves

    E-Print Network [OSTI]

    Jarmer, Gregory James Sylvester

    Guided Wave Structural Health Monitoring. Ultrasonics 50 (to Structural Health Monitoring. Philosophicalfor Guided-wave Structural Health Monitoring. Structural

  14. Quasicrystalline structures and uses thereof

    DOE Patents [OSTI]

    Steinhardt, Paul J; Chaikin, Paul Michael; Man, Weining

    2013-12-03T23:59:59.000Z

    This invention relates generally to the field of quasicrystalline structures. In preferred embodiments, the stopgap structure is more spherically symmetric than periodic structures facilitating the formation of stopgaps in nearly all directions because of higher rotational symmetries. More particularly, the invention relates to the use of quasicrystalline structures for optical, mechanical, electrical and magnetic purposes. In some embodiments, the invention relates to manipulating, controlling, modulating and directing waves including electromagnetic, sound, spin, and surface waves, for pre-selected range of wavelengths propagating in multiple directions.

  15. Quasicrystalline structures and uses thereof

    DOE Patents [OSTI]

    Steinhardt, Paul Joseph (Princeton, NJ); Chaikin, Paul Michael (New York, NY); Man, Weining (San Francisco, CA)

    2011-11-22T23:59:59.000Z

    This invention relates generally to the field of quasicrystalline structures. In preferred embodiments, the stopgap structure is more spherically symmetric than periodic structures facilitating the formation of stopgaps in nearly all directions because of higher rotational symmetries. More particularly, the invention relates to the use of quasicrystalline structures for optical, mechanical, electrical and magnetic purposes. In some embodiments, the invention relates to manipulating, controlling, modulating and directing waves including electromagnetic, sound, spin, and surface waves, for a pre-selected range of wavelengths propagating in multiple directions.

  16. Magnetic cellulose-derivative structures

    DOE Patents [OSTI]

    Walsh, Myles A. (Falmouth, MA); Morris, Robert S. (Fairhaven, MA)

    1986-09-16T23:59:59.000Z

    Structures to serve as selective magnetic sorbents are formed by dissolving a cellulose derivative such as cellulose triacetate in a solvent containing magnetic particles. The resulting solution is sprayed as a fine mist into a chamber containing a liquid coagulant such as n-hexane in which the cellulose derivative is insoluble but in which the coagulant is soluble or miscible. On contact with the coagulant, the mist forms free-flowing porous magnetic microspheric structures. These structures act as containers for the ion-selective or organic-selective sorption agent of choice. Some sorbtion agents can be incorporated during the manufacture of the structure.

  17. Appendix C Conducting Structured Walkthroughs

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

    1997-05-21T23:59:59.000Z

    This guide describes how to conduct a structured walkthroughs during the lifecycle stages of software engineering projects, regardless of hardware platform.

  18. STRICTLY CONVERGENT ANALYTIC STRUCTURES 1 ...

    E-Print Network [OSTI]

    2015-02-03T23:59:59.000Z

    We study a new notion of strictly convergent analytic structure (consisting of .... the solutions of certain systems of equations may have power series solutions...

  19. Scaling of structural failure

    SciTech Connect (OSTI)

    Bazant, Z.P. [Northwestern Univ., Evanston, IL (United States); Chen, Er-Ping [Sandia National Lab., Albuquerque, NM (United States)

    1997-01-01T23:59:59.000Z

    This article attempts to review the progress achieved in the understanding of scaling and size effect in the failure of structures. Particular emphasis is placed on quasibrittle materials for which the size effect is complicated. Attention is focused on three main types of size effects, namely the statistical size effect due to randomness of strength, the energy release size effect, and the possible size effect due to fractality of fracture or microcracks. Definitive conclusions on the applicability of these theories are drawn. Subsequently, the article discusses the application of the known size effect law for the measurement of material fracture properties, and the modeling of the size effect by the cohesive crack model, nonlocal finite element models and discrete element models. Extensions to compression failure and to the rate-dependent material behavior are also outlined. The damage constitutive law needed for describing a microcracked material in the fracture process zone is discussed. Various applications to quasibrittle materials, including concrete, sea ice, fiber composites, rocks and ceramics are presented.

  20. Structural model of uramarsite

    SciTech Connect (OSTI)

    Rastsvetaeva, R. K., E-mail: rast@ns.crys.ras.ru [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Sidorenko, G. A. [All-Russia Research Institute of Mineral Resources (VIMS) (Russian Federation); Ivanova, A. G. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Chukanov, N. V. [Russian Academy of Sciences, Institute of Problems of Chemical Physics (Russian Federation)

    2008-09-15T23:59:59.000Z

    The structural model of uramarsite, a new mineral of the uran-mica family from the Bota-Burum deposit (South Kazakhstan), is determined using a single-crystal X-ray diffraction analysis. The parameters of the triclinic unit cell are as follows: a = 7.173(2) A, b = 7.167(5) A, c = 9.30(1) A, {alpha} = 90.13(7){sup o}, {beta} = 90.09(4){sup o}, {gamma} = 89.96(4){sup o}, and space group P1. The crystal chemical formula of uramarsite is: (UO{sub 2}){sub 2}[AsO{sub 4}][PO{sub 4},AsO{sub 4}][NH{sub 4}][H{sub 3}O] . 6H{sub 2}O (Z = 1). Uramarsite is the second ammonium-containing mineral of uranium and an arsenate analogue of uramphite. In the case of uramarsite, the lowering of the symmetry from tetragonal to triclinic, which is accompanied by a triclinic distortion of the tetragonal unit cell, is apparently caused by the ordering of the As and P atoms and the NH{sub 4}, H{sub 3}O, and H{sub 2}O groups.

  1. Vessel structural support system

    DOE Patents [OSTI]

    Jenko, James X. (N. Versailles, PA); Ott, Howard L. (Kiski Twp., Allegheny County, PA); Wilson, Robert M. (Plum Boro, PA); Wepfer, Robert M. (Murrysville, PA)

    1992-01-01T23:59:59.000Z

    Vessel structural support system for laterally and vertically supporting a vessel, such as a nuclear steam generator having an exterior bottom surface and a side surface thereon. The system includes a bracket connected to the bottom surface. A support column is pivotally connected to the bracket for vertically supporting the steam generator. The system also includes a base pad assembly connected pivotally to the support column for supporting the support column and the steam generator. The base pad assembly, which is capable of being brought to a level position by turning leveling nuts, is anchored to a floor. The system further includes a male key member attached to the side surface of the steam generator and a female stop member attached to an adjacent wall. The male key member and the female stop member coact to laterally support the steam generator. Moreover, the system includes a snubber assembly connected to the side surface of the steam generator and also attached to the adjacent wall for dampening lateral movement of the steam generator. In addition, the system includes a restraining member of "flat" attached to the side surface of the steam generator and a bumper attached to the adjacent wall. The flat and the bumper coact to further laterally support the steam generator.

  2. Structural Genomics and Structural Proteomics: A Global Perspective

    E-Print Network [OSTI]

    Sussman, Joel L.

    -genome information and the success of high-throughput (HTP) methods in DNA sequencing. It was envisaged that similar HTP methods could be applied to deter- mining the 3-D structures of "all" the proteins (the "proteome, automated technologies for implementing a HTP pipeline approach to structure determination; a focus on novel

  3. WIRELESS SENSING FOR STRUCTURAL HEALTH MONITORING OF CIVIL STRUCTURES

    E-Print Network [OSTI]

    Lynch, Jerome P.

    communication of response measurements but also for power efficiency. The performance of the sensing unit in structural monitoring systems. The prototype wireless sensing unit is intended to 1) collect measurement data from the sensors installed on a structure, 2) store, manage and locally process the measurement data

  4. Photoelectron Angular Distribution and Molecular Structure in...

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

    Angular Distribution and Molecular Structure in Multiply Charged Anions. Photoelectron Angular Distribution and Molecular Structure in Multiply Charged Anions. Abstract:...

  5. Combustible structural composites and methods of forming combustible structural composites

    DOE Patents [OSTI]

    Daniels, Michael A. (Idaho Falls, ID); Heaps, Ronald J. (Idaho Falls, ID); Steffler, Eric D (Idaho Falls, ID); Swank, William D. (Idaho Falls, ID)

    2011-08-30T23:59:59.000Z

    Combustible structural composites and methods of forming same are disclosed. In an embodiment, a combustible structural composite includes combustible material comprising a fuel metal and a metal oxide. The fuel metal is present in the combustible material at a weight ratio from 1:9 to 1:1 of the fuel metal to the metal oxide. The fuel metal and the metal oxide are capable of exothermically reacting upon application of energy at or above a threshold value to support self-sustaining combustion of the combustible material within the combustible structural composite. Structural-reinforcing fibers are present in the composite at a weight ratio from 1:20 to 10:1 of the structural-reinforcing fibers to the combustible material. Other embodiments and aspects are disclosed.

  6. Combustible structural composites and methods of forming combustible structural composites

    DOE Patents [OSTI]

    Daniels, Michael A.; Heaps, Ronald J.; Steffler, Eric D.; Swank, W. David

    2013-04-02T23:59:59.000Z

    Combustible structural composites and methods of forming same are disclosed. In an embodiment, a combustible structural composite includes combustible material comprising a fuel metal and a metal oxide. The fuel metal is present in the combustible material at a weight ratio from 1:9 to 1:1 of the fuel metal to the metal oxide. The fuel metal and the metal oxide are capable of exothermically reacting upon application of energy at or above a threshold value to support self-sustaining combustion of the combustible material within the combustible structural composite. Structural-reinforcing fibers are present in the composite at a weight ratio from 1:20 to 10:1 of the structural-reinforcing fibers to the combustible material. Other embodiments and aspects are disclosed.

  7. Convergent evolution of protein structure

    E-Print Network [OSTI]

    Fischer, Daniel

    , well-defined, three-dimensional (3-D) structure of a protein dictates the way in which it performs its bi- ological function. Knowing the 3-D structure of a pro- tein allows researchers to gain insight on the active site of the protein or on the way it interacts with small molecules and other proteins. Thus, 3-D

  8. OPTIMAL OPERATION USING STRUCTURAL INFORMATION

    E-Print Network [OSTI]

    Skogestad, Sigurd

    structure and heat exchanger areas. In addition to structure and areas, the stream data (heat capacity to controlling the target temperatures, minimizes the utility consumption. The method results in a decentralized, such as variations in supply temperatures, flowrates and possibly in heat transfer coefficients are given. The goal

  9. Cluster structures in Oxygen isotopes

    E-Print Network [OSTI]

    N. Furutachi; M. kimura; A. Dot; Y. Kanada-En'yo; S. oryu

    2007-06-01T23:59:59.000Z

    Cluster structure of 16O,18O and 20O is investigated by the antisymmettrized molecular dynamics (AMD) plus generator coordinate method (GCM). We have found the K^{\\pi}=0$_2^+$ and 0$_1^-$ rotational bands of 18O that have the prominent 14C+\\alpha cluster structure. Clustering systematics becomes richer in 20O. We suggest the K^{\\pi}=0$_2^+$ band that is the mixture of the 12C+\\alpha+4n and 14C+6He cluster structures, and the K^{\\pi}=0$_1^-$ band that has the 14C+6He cluster structure. The K^{\\pi}=0$_3^+$ and 0$_2^-$ bands that have the prominent 16C+\\alpha cluster structure are also found.

  10. Phase-space structures II: Hierarchical Structure Finder

    E-Print Network [OSTI]

    M. Maciejewski; S. Colombi; V. Springel; C. Alard; F. R. Bouchet

    2008-12-01T23:59:59.000Z

    A new multi-dimensional Hierarchical Structure Finder (HSF) to study the phase-space structure of dark matter in N-body cosmological simulations is presented. The algorithm depends mainly on two parameters, which control the level of connectivity of the detected structures and their significance compared to Poisson noise. By working in 6D phase-space, where contrasts are much more pronounced than in 3D position space, our HSF algorithm is capable of detecting subhaloes including their tidal tails, and can recognise other phase-space structures such as pure streams and candidate caustics. If an additional unbinding criterion is added, the algorithm can be used as a self-consistent halo and subhalo finder. As a test, we apply it to a large halo of the Millennium Simulation, where 19 % of the halo mass are found to belong to bound substructures, which is more than what is detected with conventional 3D substructure finders, and an additional 23-36 % of the total mass belongs to unbound HSF structures. The distribution of identified phase-space density peaks is clearly bimodal: high peaks are dominated by the bound structures and low peaks belong mostly to tidal streams. In order to better understand what HSF provides, we examine the time evolution of structures, based on the merger tree history. Bound structures typically make only up to 6 orbits inside the main halo. Still, HSF can identify at the present time at least 80 % of the original content of structures with a redshift of infall as high as z space.

  11. Thermal transfer structures coupling electronics card(s) to coolant-cooled structure(s)

    DOE Patents [OSTI]

    David, Milnes P; Graybill, David P; Iyengar, Madhusudan K; Kamath, Vinod; Kochuparambil, Bejoy J; Parida, Pritish R; Schmidt, Roger R

    2014-12-16T23:59:59.000Z

    Cooling apparatuses and coolant-cooled electronic systems are provided which include thermal transfer structures configured to engage with a spring force one or more electronics cards with docking of the electronics card(s) within a respective socket(s) of the electronic system. A thermal transfer structure of the cooling apparatus includes a thermal spreader having a first thermal conduction surface, and a thermally conductive spring assembly coupled to the conduction surface of the thermal spreader and positioned and configured to reside between and physically couple a first surface of an electronics card to the first surface of the thermal spreader with docking of the electronics card within a socket of the electronic system. The thermal transfer structure is, in one embodiment, metallurgically bonded to a coolant-cooled structure and facilitates transfer of heat from the electronics card to coolant flowing through the coolant-cooled structure.

  12. CABM Symposium Applications of NMR to structure-based drug design in structural

    E-Print Network [OSTI]

    Powers, Robert

    CABM Symposium Applications of NMR to structure-based drug design in structural genomics Robert, structure-based drug design, structural genomics Abstract Structural genomics is poised to have a tremendous design in the era of structural genomics. Introduction Structure-based drug design has established itself

  13. Thermal control structure and garment

    DOE Patents [OSTI]

    Klett, James W. (Knoxville, TN); Cameron, Christopher Stan (Sanford, NC)

    2012-03-13T23:59:59.000Z

    A flexible thermally conductive structure. The structure generally includes a plurality of thermally conductive yarns, at least some of which are at least partially disposed adjacent to an elastomeric material. Typically, at least a portion of the plurality of thermally conductive yarns is configured as a sheet. The yarns may be constructed from graphite, metal, or similar materials. The elastomeric material may be formed from urethane or silicone foam that is at least partially collapsed, or from a similar material. A thermal management garment is provided, the garment incorporating a flexible thermally conductive structure.

  14. Structure of Synaptic Connectors Solved

    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 InstagramStructure of All-Polymer Solar Cells ImpedesStructureStructure of

  15. Structure of Synaptic Connectors Solved

    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 InstagramStructure of All-Polymer Solar Cells ImpedesStructureStructure

  16. STRUCTURAL ENGINEERING, MECHANICS AND MATERIALS

    E-Print Network [OSTI]

    Wang, Yuhang

    of companies worldwide; cladding effects on, and hybrid control of, the response of tall buildings Buildings Masonry Structures Nano/Microstructure of Cement-based Materials Polymeric Composite Systems Reliable Engineering Computing Risk Analysis Seismic Hazard Mitigation Smart Materials

  17. 2014 GRADUATE STUDIES STRUCTURAL ENGINEERING,

    E-Print Network [OSTI]

    Wang, Yuhang

    , the response of tall buildings to earthquake and wind; steel connection design and behavior; and structural engineering and mechanics Advanced Applied Mathematics in Engineering Advanced Dynamics and Smart Environments High-performance Concrete and Steel Horizontally Curved Bridges Industrial Buildings

  18. Water intrusion in underground structures

    E-Print Network [OSTI]

    Nazarchuk, Alex

    2008-01-01T23:59:59.000Z

    This thesis presents a study of the permissible groundwater infiltration rates in underground structures, the consequences of this leakage and the effectiveness of mitigation measures. Design guides and codes do not restrict, ...

  19. Structure and Information Stephen Binns

    E-Print Network [OSTI]

    Binns, Stephen

    of a Turing Machine. Stephen Binns Structure and Information #12;Alan Turing's Machines A Turing machine (TM and Information #12;Alan Turing's Machines A Turing machine (TM) consists of an infinite (in one direction) tape

  20. Geometric algorithms for reconfigurable structures

    E-Print Network [OSTI]

    Benbernou, Nadia M

    2011-01-01T23:59:59.000Z

    In this thesis, we study three problems related to geometric algorithms of reconfigurable structures. In the first problem, strip folding, we present two universal hinge patterns for a strip of material that enable the ...

  1. Protein Structure Analysis Iosif Vaisman

    E-Print Network [OSTI]

    Vaisman, Iosif

    Protein Structure Analysis Iosif Vaisman 2012 BINF 731 Protein Engineering Protein Engineering Increase catalytic activity Change substrate binding site to increase specificity Change the thermal stability Increase proteins resistance to proteases Change codon composition Protein Engineering

  2. Fracture of aluminum naval structures

    E-Print Network [OSTI]

    Galanis, Konstantinos, 1970-

    2007-01-01T23:59:59.000Z

    Structural catastrophic failure of naval vessels due to extreme loads such as underwater or air explosion, high velocity impact (torpedoes), or hydrodynamic loads (high speed vessels) is primarily caused by fracture. ...

  3. Emergent Leadership Structures in Organizations

    E-Print Network [OSTI]

    Slaughter, Andrew

    2010-01-14T23:59:59.000Z

    A social network approach was used to investigate the structural features of various emergent leadership systems in a large financial organization (n = 137), including transactional and transformational-style leadership relations. Results indicate...

  4. Wide-span cable structures

    E-Print Network [OSTI]

    Santoso, Katherina, 1980-

    2004-01-01T23:59:59.000Z

    In recent years, the application of cable structures in buildings has gained huge popularities. Although cable technology has been established since the 1950s, there is suddenly a surge in the number of its building ...

  5. Electronic structure of superconductivity refined

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

    on a little understood aspect of the electronic structure in high-temperature superconductors. July 10, 2008 Los Alamos National Laboratory sits on top of a once-remote mesa...

  6. Protein Structure Analysis Iosif Vaisman

    E-Print Network [OSTI]

    Vaisman, Iosif

    Protein Structure Analysis Iosif Vaisman 2012 BINF 731 Protein Engineering Protein Engineering Increase catalytic activity Change substrate binding site to increase specificity Change the thermal Engineering Protein Engineering #12;Protein Engineering Protein Engineering Protein Engineering Protein

  7. Time Structure of Muonic Showers

    E-Print Network [OSTI]

    L. Cazon; R. A. Vazquez; A. A. Watson; E. Zas

    2003-11-10T23:59:59.000Z

    An analytical description of the time structure of the pulses induced by muons in air showers at ground level is deduced assuming the production distance distribution for the muons can be obtained elsewhere. The results of this description are compared against those obtained from simulated showers using AIRES. Major contributions to muon time delays are identified and a relation between the time structure and the depth distribution is unveiled.

  8. Hypertext navigation by network structure

    E-Print Network [OSTI]

    Peart, Sheila Ann

    1991-01-01T23:59:59.000Z

    of Usenet. TABLE OF CONTENTS 1. INTRODUCTION Page 1. 1 Statement of the Problem . 1. 2 Research Objectives 1. 3 Research Methodology 2. HYPERTEXT AND ELECTRONIC COMMUMCATION . . 13 2. 1 Hypertext 2. 2 Unix Network News 2. 3 Super... Argument/Position(s) conversation structure . . 27 . . 29 . . 30 . . 31 4. 1 Original Usenet conversation structure . . 38 4. 2 Modification of Usenet conversations to the gIBIS format . . 39 4. 3 SuperCard Translation window 4. 4 SuperCard g...

  9. Nuclear Power Plant Concrete Structures

    SciTech Connect (OSTI)

    Basu, Prabir [International Atomic Energy Agency (IAEA)] [International Atomic Energy Agency (IAEA); Labbe, Pierre [Electricity of France (EDF)] [Electricity of France (EDF); Naus, Dan [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL)

    2013-01-01T23:59:59.000Z

    A nuclear power plant (NPP) involves complex engineering structures that are significant items of the structures, systems and components (SSC) important to the safe and reliable operation of the NPP. Concrete is the commonly used civil engineering construction material in the nuclear industry because of a number of advantageous properties. The NPP concrete structures underwent a great degree of evolution, since the commissioning of first NPP in early 1960. The increasing concern with time related to safety of the public and environment, and degradation of concrete structures due to ageing related phenomena are the driving forces for such evolution. The concrete technology underwent rapid development with the advent of chemical admixtures of plasticizer/super plasticizer category as well as viscosity modifiers and mineral admixtures like fly ash and silica fume. Application of high performance concrete (HPC) developed with chemical and mineral admixtures has been witnessed in the construction of NPP structures. Along with the beneficial effect, the use of admixtures in concrete has posed a number of challenges as well in design and construction. This along with the prospect of continuing operation beyond design life, especially after 60 years, the impact of extreme natural events ( as in the case of Fukushima NPP accident) and human induced events (e.g. commercial aircraft crash like the event of September 11th 2001) has led to further development in the area of NPP concrete structures. The present paper aims at providing an account of evolution of NPP concrete structures in last two decades by summarizing the development in the areas of concrete technology, design methodology and construction techniques, maintenance and ageing management of concrete structures.

  10. Integrated structural control design of large space structures

    SciTech Connect (OSTI)

    Allen, J.J.; Lauffer, J.P.

    1995-01-01T23:59:59.000Z

    Active control of structures has been under intensive development for the last ten years. Reference 2 reviews much of the identification and control technology for structural control developed during this time. The technology was initially focused on space structure and weapon applications; however, recently the technology is also being directed toward applications in manufacturing and transportation. Much of this technology focused on multiple-input/multiple-output (MIMO) identification and control methodology because many of the applications require a coordinated control involving multiple disturbances and control objectives where multiple actuators and sensors are necessary for high performance. There have been many optimal robust control methods developed for the design of MIMO robust control laws; however, there appears to be a significant gap between the theoretical development and experimental evaluation of control and identification methods to address structural control applications. Many methods have been developed for MIMO identification and control of structures, such as the Eigensystem Realization Algorithm (ERA), Q-Markov Covariance Equivalent Realization (Q-Markov COVER) for identification; and, Linear Quadratic Gaussian (LQG), Frequency Weighted LQG and H-/ii-synthesis methods for control. Upon implementation, many of the identification and control methods have shown limitations such as the excitation of unmodelled dynamics and sensitivity to system parameter variations. As a result, research on methods which address these problems have been conducted.

  11. STRUCTURED TEXT RETRIEVAL MODELS Djoerd Hiemstra

    E-Print Network [OSTI]

    Hiemstra, Djoerd

    and manipulating content and hierarchical structure such as the parsed strings model [10], PAT expressions [15STRUCTURED TEXT RETRIEVAL MODELS Djoerd Hiemstra University of Twente http DEFINITION Structured text retrieval models provide a formal definition or mathematical framework

  12. Analysis of deployable strut roof structures

    E-Print Network [OSTI]

    Wolfe, Maxwell H. (Maxwell Henry)

    2013-01-01T23:59:59.000Z

    Deployable structures are structures that can change shape from a compact to an expanded form. Thus, their advantage over conventional structures is adaptability, whether in the sense of adapting to changing environmental ...

  13. Electrochemical, Structural and Surface Characterization of Nickel...

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

    Electrochemical, Structural and Surface Characterization of NickelZirconia Solid Oxide Fuel Cell Anodes in Coal Gas Containing Electrochemical, Structural and Surface...

  14. Correlation Between Structure and Thermoelectric Properties of...

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

    Correlation Between Structure and Thermoelectric Properties of Bulk High Performance Materials for Energy Conversion Correlation Between Structure and Thermoelectric Properties of...

  15. Optimization Online - Structural optimization of the Ziegler's ...

    E-Print Network [OSTI]

    Oleg N. Kirillov

    2010-12-24T23:59:59.000Z

    Dec 24, 2010 ... Abstract: Structural optimization of non-conservative systems with ... with important applications in fluid-structure interactions, friction-induced...

  16. Review: Structuring an Energy Technology Revolution

    E-Print Network [OSTI]

    Kunnas, Jan

    2010-01-01T23:59:59.000Z

    Structuring an Energy Technology Revolution By Charles WeissB. Structuring an Energy Technology Revolution. Cambridge,increases in spending on energy technology and innovation,

  17. Crump Geyser: High Precision Geophysics & Detailed Structural...

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

    Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well...

  18. Investigations of Structure and Metabolism within Shewanella...

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

    of Structure and Metabolism within Shewanella oneidensis MR-1 Biofilms . Investigations of Structure and Metabolism within Shewanella oneidensis MR-1 Biofilms . Abstract: Biofilms...

  19. Facile synthesized nanorod structured vanadium pentoxide for...

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

    synthesized nanorod structured vanadium pentoxide for high-rate lithium batteries. Facile synthesized nanorod structured vanadium pentoxide for high-rate lithium batteries....

  20. CRAD, Nuclear Facility Construction - Structural Concrete, May...

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

    CRAD, Nuclear Facility Construction - Structural Concrete, May 29, 2009 CRAD, Nuclear Facility Construction - Structural Concrete, May 29, 2009 May 29, 2009 Nuclear Facility...

  1. Thermographic inspection of massive structures

    SciTech Connect (OSTI)

    Renshaw, Jeremy B.; Guimaraes, Maria; Scott, David B. [Electric Power Research Institute (EPRI), 3420 Hillview Avenue, Palo Alto, CA 94304 (United States)

    2014-02-18T23:59:59.000Z

    Nondestructive Evaluation of concrete structures is a growing concern for the nuclear industry as well as for many other industries. As critical concrete components continue to age, the ability to assess the health and suitability for continued service has become a key consideration. In some cases, repair of these structures is difficult and expensive, while replacement is prohibitively expensive or, in some cases, not feasible. Therefore, the ability to inspect these key assets is a primary concern, especially in the nuclear industry. Due to the large size of containment buildings, cooling towers, and other large concrete assets, the ability to rapidly inspect for defects of concern is very desirable. Thermographic inspection appears to have the required ability to rapidly inspect large structures to ascertain the location and size of many of the defects of concern. This ability was demonstrated by performing a thermographic inspection of a large concrete dam in 2 days.

  2. Relativisticlike structure of classical thermodynamics

    E-Print Network [OSTI]

    Hernando Quevedo; Alberto Sanchez; Alejandro Vazquez

    2014-10-26T23:59:59.000Z

    We analyze in the context of geometrothermodynamics a Legendre invariant metric structure in the equilibrium space of an ideal gas. We introduce the concept of thermodynamic geodesic as a succession of points, each corresponding to a state of equilibrium, so that the resulting curve represents a quasi-static process. A rigorous geometric structure is derived in which the thermodynamic geodesics at a given point split the equilibrium space into two disconnected regions separated by adiabatic geodesics. This resembles the causal structure of special relativity, which we use to introduce the concept of adiabatic cone for thermodynamic systems. This result might be interpreted as an alternative indication of the inter-relationship between relativistic physics and classical thermodynamics.

  3. High temperature structural insulating material

    DOE Patents [OSTI]

    Chen, W.Y.

    1984-07-27T23:59:59.000Z

    A high temperature structural insulating material useful as a liner for cylinders of high temperature engines through the favorable combination of high service temperature (above about 800/sup 0/C), low thermal conductivity (below about 0.2 W/m/sup 0/C), and high compressive strength (above about 250 psi). The insulating material is produced by selecting hollow ceramic beads with a softening temperature above about 800/sup 0/C, a diameter within the range of 20-200 ..mu..m, and a wall thickness in the range of about 2 to 4 ..mu..m; compacting the beads and a compatible silicate binder composition under pressure and sintering conditions to provide the desired structural form with the structure having a closed-cell, compact array of bonded beads.

  4. High temperature structural insulating material

    DOE Patents [OSTI]

    Chen, Wayne Y. (Munster, IN)

    1987-01-01T23:59:59.000Z

    A high temperature structural insulating material useful as a liner for cylinders of high temperature engines through the favorable combination of high service temperature (above about 800.degree. C.), low thermal conductivity (below about 0.2 W/m.degree. C.), and high compressive strength (above about 250 psi). The insulating material is produced by selecting hollow ceramic beads with a softening temperature above about 800.degree. C., a diameter within the range of 20-200 .mu.m, and a wall thickness in the range of about 2-4 .mu.m; compacting the beads and a compatible silicate binder composition under pressure and sintering conditions to provide the desired structural form with the structure having a closed-cell, compact array of bonded beads.

  5. Quasicrystalline structures and uses thereof

    DOE Patents [OSTI]

    Steinhardt, Paul Joseph; Chaikin, Paul Michael; Man, Weining

    2013-08-13T23:59:59.000Z

    This invention relates generally to devices constructed from quasicrystalline heterostructures. In preferred embodiments, two or more dielectric materials are arranged in a two- or three-dimensional space in a lattice pattern having at least a five-fold symmetry axis and not a six-fold symmetry axis, such that the quasicrystalline heterostructure exhibits an energy band structure in the space, the band structure having corresponding symmetry, which symmetry is forbidden in crystals, and which band structure comprises a complete band gap. The constructed devices are adapted for manipulating, controlling, modulating, trapping, reflecting and otherwise directing waves including electromagnetic, sound, spin, and surface waves, for a pre-selected range of wavelengths propagating within or through the heterostructure in multiple directions.

  6. Interface dynamics for layered structures

    E-Print Network [OSTI]

    Takao Ohta; David Jasnow

    1997-07-17T23:59:59.000Z

    We investigate dynamics of large scale and slow deformations of layered structures. Starting from the respective model equations for a non-conserved system, a conserved system and a binary fluid, we derive the interface equations which are a coupled set of equations for deformations of the boundaries of each domain. A further reduction of the degrees of freedom is possible for a non-conserved system such that internal motion of each domain is adiabatically eliminated. The resulting equation of motion contains only the displacement of the center of gravity of domains, which is equivalent to the phase variable of a periodic structure. Thus our formulation automatically includes the phase dynamics of layered structures. In a conserved system and a binary fluid, however, the internal motion of domains turns out to be a slow variable in the long wavelength limit because of concentration conservation. Therefore a reduced description only involving the phase variable is not generally justified.

  7. Changing the Structure Boundary Geometry

    SciTech Connect (OSTI)

    Karasev, Viktor; Dzlieva, Elena; Ivanov, Artyom [St.-Petersburg State University, Physics Faculty, Ulianovskaya 1, Peterhof, St. Petersburg, 198504 (Russian Federation)

    2008-09-07T23:59:59.000Z

    Analysis of previously obtained results shows that hexagonal crystal lattice is the dominant type of ordering, in particular, in striated glow discharges. We explore the possibility for changing the dust distribution in horizontal cross sections of relatively highly ordered structures in a glow-discharge. Presuming that boundary geometry can affect dust distribution, we used cylindrical coolers held at 0 deg. C and placed against a striation containing a structure, to change the geometry of its outer boundary. By varying the number of coolers, their positions, and their separations from the tube wall, azimuthally asymmetric thermophoretic forces can be used to form polygonal boundaries and vary the angles between their segments (in a horizontal cross section). The corner in the structure's boundary of 60 deg. stimulates formation of hexagonal cells. The structure between the supported parallel boundaries is also characterized by stable hexagonal ordering. We found that a single linear boundary segment does not give rise to any sizable domain, but generates a lattice extending from the boundary (without edge defects). A square lattice can be formed by setting the angle equal to 90 deg. . However, angles of 45 deg. and 135 deg. turned out easier to form. Square lattice was created by forming a near-135 deg. corner with four coolers. It was noted that no grain ordering is observed in the region adjacent to corners of angles smaller than 30 deg. , which do not promote ordering into cells of any shape. Thus, manipulation of a structure boundary can be used to change dust distribution, create structures free of the ubiquitous edge defects that destroy orientation order, and probably change the crystal lattice type.

  8. Chapter 8: Tension Structures Section 8.3: Tensegrity Structures

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Snelson and David Georges Emmerich. All three applied for a patent with different wordings a special Issue of the International Journal of Space Structures [8.3.1]. David Georges Emmerich was very that it was dealing with tensegrity systems, even if David Georges Emmerich called them "Systèmes autotendants

  9. Quasar Structure and Cosmological Feedback

    E-Print Network [OSTI]

    Martin Elvis

    2006-06-05T23:59:59.000Z

    Feedback from quasars and AGNs is being invoked frequently in several cosmological settings. Currently, order of magnitude, or more, uncertainties in the structure of both the wind and the 'obscuring torus' make predictions highly uncertain. To make testable models of this 'cosmological feedback' it is essential to understand the detailed structure of AGNs sufficiently well to predict their properties for the whole quasar population, at all redshifts. Progress in both areas is rapid, and I describe the near-term prospects for reducing these uncertainties for 'slow' (non-relativistic) AGN winds and the obscuring torus.

  10. Method of making diode structures

    DOE Patents [OSTI]

    Compaan, Alvin D.; Gupta, Akhlesh

    2006-11-28T23:59:59.000Z

    A method of making a diode structure includes the step of depositing a transparent electrode layer of any one or more of the group ZnO, ZnS and CdO onto a substrate layer, and depositing an active semiconductor junction having an n-type layer and a p-type layer onto the transparent electrode layer under process conditions that avoid substantial degradation of the electrode layer. A back electrode coating layer is applied to form a diode structure.

  11. DNA attachment to support structures

    DOE Patents [OSTI]

    Balhorn, Rodney L. (Livermore, CA); Barry, Christopher H. (Fresno, CA)

    2002-01-01T23:59:59.000Z

    Microscopic beads or other structures are attached to nucleic acids (DNA) using a terminal transferase. The transferase adds labeled dideoxy nucleotide bases to the ends of linear strands of DNA. The labels, such as the antigens digoxigenin and biotin, bind to the antibody compounds or other appropriate complementary ligands, which are bound to the microscopic beads or other support structures. The method does not require the synthesis of a synthetic oligonucleotide probe. The method can be used to tag or label DNA even when the DNA has an unknown sequence, has blunt ends, or is a very large fragment (e.g., >500 kilobase pairs).

  12. Method for protein structure alignment

    DOE Patents [OSTI]

    Blankenbecler, Richard; Ohlsson, Mattias; Peterson, Carsten; Ringner, Markus

    2005-02-22T23:59:59.000Z

    This invention provides a method for protein structure alignment. More particularly, the present invention provides a method for identification, classification and prediction of protein structures. The present invention involves two key ingredients. First, an energy or cost function formulation of the problem simultaneously in terms of binary (Potts) assignment variables and real-valued atomic coordinates. Second, a minimization of the energy or cost function by an iterative method, where in each iteration (1) a mean field method is employed for the assignment variables and (2) exact rotation and/or translation of atomic coordinates is performed, weighted with the corresponding assignment variables.

  13. On Tailoring PDC speckle structure

    E-Print Network [OSTI]

    Brida, G; Meda, A; Ruo-Berchera, I; Predazzi, E

    2008-01-01T23:59:59.000Z

    Speckle structure of parametric down conversion light has recently received a large attention due to relevance in view of applications to quantum imaging The possibility of tailoring the speckle size by acting on the pump properties is an interesting tool for the applications to quantum imaging and in particular to the detection of weak object under shot-noise limit. Here we present a systematic detailed experimental study of the speckle structure produced in type II PDC with particular attention to its variation with pump beam properties.

  14. Structure of Synaptic Connectors Solved

    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 InstagramStructure of All-Polymer Solar Cells ImpedesStructure ofHumanto

  15. Structure of Synaptic Connectors Solved

    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 InstagramStructure of All-Polymer Solar Cells ImpedesStructure

  16. Structure of Synaptic Connectors Solved

    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 solid ... Strengthening aStructure of All-PolymerStructure

  17. Sensor data analysis and information extraction for structural health monitoring

    E-Print Network [OSTI]

    Yan, Linjun

    2006-01-01T23:59:59.000Z

    Workshop on Structural Health Monitoring, StanfordA Review of Structural Health Monitoring Literature: 1996-workshop on structural Health Monitoring: Structural Health

  18. Diffeomorphism Algebra Structure and Membrane Theory

    E-Print Network [OSTI]

    Jens Hoppe; Mariusz Hynek

    2011-09-02T23:59:59.000Z

    Explicit structure constants are calculated for certain Lie algebras of vectorfields on 2-dimensional compact manifolds.

  19. Social Structure [ Construction no. 1

    E-Print Network [OSTI]

    Harms, Kyle E.

    Social Structure [ Construction no. 1 ] Foster Gallery, LSU SEPTEMBER 6-9 Reception 6-8 pm, Sept 8 [ Construction no. 1 ] is an interactive audiovisual performance for voice, social media, interactive media, and constructed speaker blocks in which social media artifacts (tweets, Facebook statuses, 4Square locales, Flickr

  20. Plasma-based accelerator structures

    SciTech Connect (OSTI)

    Schroeder, Carl B.

    1999-12-01T23:59:59.000Z

    Plasma-based accelerators have the ability to sustain extremely large accelerating gradients, with possible high-energy physics applications. This dissertation further develops the theory of plasma-based accelerators by addressing three topics: the performance of a hollow plasma channel as an accelerating structure, the generation of ultrashort electron bunches, and the propagation of laser pulses is underdense plasmas.

  1. Structural Biochemistry I General Information

    E-Print Network [OSTI]

    Richardson, David

    Structural Biochemistry I Fall 2007 General Information Lectures: Room 147, Nanaline Duke Building August 27 - October 12, 2007 MWF 3:05-3:55 PM Course Website: http-1235 (Lab 1); 660-1634 (Lab 2) Office hours: Mondays 5 6pm Room 247 Nanaline Duke Text: Branden

  2. Nucleon Transverse Structure at COMPASS

    E-Print Network [OSTI]

    Nour Makke

    2014-12-15T23:59:59.000Z

    COMPASS is a fixed target experiment at CERN. Part of its physics programme is dedicated to study the transverse spin and the transverse momentum structure of the nucleon using SIDIS. For these measurements, data have been collected using transversely polarised proton and deuteron targets. A selection of recent measurements of azimuthal asymmetries using data collected with transversely polarised protons is presented.

  3. Structural Analysis of Combustion Models

    E-Print Network [OSTI]

    Tth, J; Zsly, I

    2013-01-01T23:59:59.000Z

    Using ReactionKinetics, a Mathematica based package a few dozen detailed models for combustion of hydrogen, carbon monoxide and methanol are investigated. Essential structural characteristics are pulled out, and similarities and differences of the mechanisms are highlighted. These investigations can be used before or parallel with usual numerical investigations, such as pathway analysis, sensitivity analysis, parameter estimation, or simulation.

  4. Synthesis and structure of perfluorocongressane

    SciTech Connect (OSTI)

    Wei, Han-Chao; Corbelin, S.; Lagow, R.J. [Univ. of Texas, Austin, TX (United States)] [Univ. of Texas, Austin, TX (United States)

    1996-03-08T23:59:59.000Z

    The direct fluorination of inorganic, organometallic and organic compounds, employing the LaMar method, has impacted the synthesis of structurally unusual fluorinated compounds over the past 25 years. Perfluorocongressane was synthesized using elemental fluorine and characterized by mass spectra, {sup 19}F NMR, and X-ray crystallography. 1 fig., 1 tab.

  5. Variable Structure Control of a

    E-Print Network [OSTI]

    Ge, Shuzhi Sam

    . INTRODUCTION Modelling and control of flexible link manipulators have been studied intensively controller for regulation of a flexible beam. Due to its simplicity and robustness to parametricVariable Structure Control of a Distributed-Parameter Flexible Beam S. S. Ge,* T. H. Lee, G. Zhu, F

  6. Structurally Electromagnetic Formation Flight (EMFF)

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Structurally connected secondary mirror EMFF secondary mirror EMFF Design Electromagnetic Formation for a smaller, simpler system. µEMFF investigates the use of conventional conductors, capacitors, and solar propellants that often limit lifetime, the EMFF system uses solar power to energize a magnetic field

  7. Protein Structure Analysis Iosif Vaisman

    E-Print Network [OSTI]

    Vaisman, Iosif

    Protein Structure Analysis Iosif Vaisman 2009 BINF 731 Protein Engineering Protein Engineering Increase catalytic activity Change substrate binding site to increase specificity Change the thermal152S -1.08 1goj S152T 1.12 Protein Engineering Protein Engineering #12;Protein Engineering Protein

  8. Hyperons: Insights into baryon structures

    SciTech Connect (OSTI)

    Lach, J.

    1991-08-01T23:59:59.000Z

    The baryon octet is composed mainly of hyperons. Modern high energy hyperon beams provide a tool for the study of hyperon static properties and interactions. Experiments with these beams have provided new insights into hyperon rare decays, magnetic moments, and interactions. These experiments provide us with insights into the strong, weak, and electromagnetic structure of the baryons. 65 refs., 45 figs., 5 tabs.

  9. Space Science: Atmosphere Thermal Structure

    E-Print Network [OSTI]

    Johnson, Robert E.

    Space Science: Atmosphere Part -2 Thermal Structure Review tropospheres Absorption of Radiation Adiabatic Lapse Rate ~ 9 K/km Slightly smaller than our estimate Pressure ~3000ft under ocean surface thickness (positive up) is the solar zenith angle Fs is the solar energy flux at frequency (when

  10. DNA Structural Nanotechnology Duke University

    E-Print Network [OSTI]

    Reif, John H.

    DNA Structural Nanotechnology John Reif Duke University Graduate Students: Harish Chandran&Caltech Tube Lattices #12;Ned Seeman New York University, USA Ned Seeman: Father of DNA Nanotechnology His Initial Ideas & Motivation for DNA Nanotechnology #12;Cube Chen & Seeman, Nature350:631 (1991) Truncated

  11. Corrugated Membrane Fuel Cell Structures

    SciTech Connect (OSTI)

    Grot, Stephen [President, Ion Power Inc.] President, Ion Power Inc.

    2013-09-30T23:59:59.000Z

    One of the most challenging aspects of traditional PEM fuel cell stacks is the difficulty achieving the platinum catalyst utilization target of 0.2 gPt/kWe set forth by the DOE. Good catalyst utilization can be achieved with state-of-the-art catalyst coated membranes (CCM) when low catalyst loadings (<0.3 mg/cm2) are used at a low current. However, when low platinum loadings are used, the peak power density is lower than conventional loadings, requiring a larger total active area and a larger bipolar plate. This results in a lower overall stack power density not meeting the DOE target. By corrugating the fuel cell membrane electrode structure, Ion Power?s goal is to realize both the Pt utilization targets as well as the power density targets of the DOE. This will be achieved by demonstrating a fuel cell single cell (50 cm2) with a twofold increase in the membrane active area over the geometric area of the cell by corrugating the MEA structure. The corrugating structure must be able to demonstrate the target properties of < 10 mOhm-cm2 electrical resistance at > 20 psi compressive strength over the active area, in combination with offering at least 80% of power density that can be achieved by using the same MEA in a flat plate structure. Corrugated membrane fuel cell structures also have the potential to meet DOE power density targets by essentially packaging more membrane area into the same fuel cell volume as compared to conventional stack constructions.

  12. Heat pipe wick with structural enhancement

    DOE Patents [OSTI]

    Andraka, Charles E.; Adkins, Douglas R.; Moreno, James B.; Rawlinson, K. Scott; Showalter, Steven K.; Moss, Timothy A.

    2003-11-18T23:59:59.000Z

    Heat pipe wick structure wherein a stout sheet of perforated material overlays a high performance wick material such as stainless steel felt affixed to a substrate. The inventive structure provides a good flow path for working fluid while maintaining durability and structural stability independent of the structure (or lack of structure) associated with the wick material. In one described embodiment, a wick of randomly laid .about.8 micron thickness stainless steel fibers is sintered to a metal substrate and a perforated metal overlay.

  13. Structural Health Monitoring for Impact Damage in Composite Structures.

    SciTech Connect (OSTI)

    Roach, Dennis P.; Raymond Bond (Purdue); Doug Adams (Purdue)

    2014-08-01T23:59:59.000Z

    Composite structures are increasing in prevalence throughout the aerospace, wind, defense, and transportation industries, but the many advantages of these materials come with unique challenges, particularly in inspecting and repairing these structures. Because composites of- ten undergo sub-surface damage mechanisms which compromise the structure without a clear visual indication, inspection of these components is critical to safely deploying composite re- placements to traditionally metallic structures. Impact damage to composites presents one of the most signi fi cant challenges because the area which is vulnerable to impact damage is generally large and sometimes very dif fi cult to access. This work seeks to further evolve iden- ti fi cation technology by developing a system which can detect the impact load location and magnitude in real time, while giving an assessment of the con fi dence in that estimate. Fur- thermore, we identify ways by which impact damage could be more effectively identi fi ed by leveraging impact load identi fi cation information to better characterize damage. The impact load identi fi cation algorithm was applied to a commercial scale wind turbine blade, and results show the capability to detect impact magnitude and location using a single accelerometer, re- gardless of sensor location. A technique for better evaluating the uncertainty of the impact estimates was developed by quantifying how well the impact force estimate meets the assump- tions underlying the force estimation technique. This uncertainty quanti fi cation technique was found to reduce the 95% con fi dence interval by more than a factor of two for impact force estimates showing the least uncertainty, and widening the 95% con fi dence interval by a fac- tor of two for the most uncertain force estimates, avoiding the possibility of understating the uncertainty associated with these estimates. Linear vibration based damage detection tech- niques were investigated in the context of structural stiffness reductions and impact damage. A method by which the sensitivity to damage could be increased for simple structures was presented, and the challenges of applying that technique to a more complex structure were identi fi ed. The structural dynamic changes in a weak adhesive bond were investigated, and the results showed promise for identifying weak bonds that show little or no static reduction in stiffness. To address these challenges in identifying highly localized impact damage, the possi- bility of detecting damage through nonlinear dynamic characteristics was also identi fi ed, with a proposed technique which would leverage impact location estimates to enable the detection of impact damage. This nonlinear damage identi fi cation concept was evaluated on a composite panel with a substructure disbond, and the results showed that the nonlinear dynamics at the damage site could be observed without a baseline healthy reference. By further developing impact load identi fi cation technology and combining load and damage estimation techniques into an integrated solution, the challenges associated with impact detection in composite struc- tures can be effectively solved, thereby reducing costs, improving safety, and enhancing the operational readiness and availability of high value assets.

  14. Collective network for computer structures

    DOE Patents [OSTI]

    Blumrich, Matthias A; Coteus, Paul W; Chen, Dong; Gara, Alan; Giampapa, Mark E; Heidelberger, Philip; Hoenicke, Dirk; Takken, Todd E; Steinmacher-Burow, Burkhard D; Vranas, Pavlos M

    2014-01-07T23:59:59.000Z

    A system and method for enabling high-speed, low-latency global collective communications among interconnected processing nodes. The global collective network optimally enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the network via links to facilitate performance of low-latency global processing operations at nodes of the virtual network. The global collective network may be configured to provide global barrier and interrupt functionality in asynchronous or synchronized manner. When implemented in a massively-parallel supercomputing structure, the global collective network is physically and logically partitionable according to the needs of a processing algorithm.

  15. Process to make structured particles

    DOE Patents [OSTI]

    Knapp, Angela Michelle; Richard, Monique N; Luhrs, Claudia; Blada, Timothy; Phillips, Jonathan

    2014-02-04T23:59:59.000Z

    Disclosed is a process for making a composite material that contains structured particles. The process includes providing a first precursor in the form of a dry precursor powder, a precursor liquid, a precursor vapor of a liquid and/or a precursor gas. The process also includes providing a plasma that has a high field zone and passing the first precursor through the high field zone of the plasma. As the first precursor passes through the high field zone of the plasma, at least part of the first precursor is decomposed. An aerosol having a second precursor is provided downstream of the high field zone of the plasma and the decomposed first material is allowed to condense onto the second precursor to from structured particles.

  16. Sandwich Construction Solar Structural Facets

    SciTech Connect (OSTI)

    Diver, R. B.; Grossman, J.W.

    1998-12-22T23:59:59.000Z

    Silver/glass mirrors have excellent optical properties but need a method of support in order to be used in concentrating solar thermal systems. In collaboration with the Cummins dish/Stirling development program, they started investigating sandwich construction as a way to integrate silver/glass mirrors into solar optical elements. In sandwich construction, membranes such as sheet metal or plastic are bonded to the front and back of a core (like a sandwich). For solar optical elements, a glass mirror is bonded to one of the membranes. This type of construction has the advantages of a high strength-to-weight ratio, and reasonable material and manufacturing cost. The inherent stiffness of sandwich construction mirror panels also facilitates large panels. This can have cost advantages for both the amount of hardware required as well as reduced installation and alignment costs. In addition, by incorporating the panels into the support structure reductions in the amount of structural support required are potentially possible.

  17. Structure of plant bile pigments

    SciTech Connect (OSTI)

    Schoenleber, R.W.

    1983-12-01T23:59:59.000Z

    Selective peptide cleavage has provided a general procedure for the study of the structure, including stereochemistry, of plant bile pigments. The information derived from the synthesis and spectral analysis of a series of 2,3-dihydrodioxobilins allows the determination of the trans relative stereochemistry for ring A of the ..beta../sub 1/-phycocyanobilin from C-phycocyanin as well as for ring A of phytochrome. A complete structure proof of the five phycoerythrobilins attached to the ..cap alpha.. and ..beta.. subunits of B-phycoerythrin is described. One of these tetrapyrroles is doubly-peptide linked to a single peptide chain through two thioethers at the C-3' and C-18' positions. The four remaining phycoerythrobilins are singly-linked to the protein through thioethers at the C-3' position and all possess the probable stereochemistry C-2(R), C-3(R), C-3'(R), and C-16(R).

  18. Nanowire structures and electrical devices

    DOE Patents [OSTI]

    Bezryadin, Alexey (Champaign, IL); Remeika, Mikas (Urbana, IL)

    2010-07-06T23:59:59.000Z

    The present invention provides structures and devices comprising conductive segments and conductance constricting segments of a nanowire, such as metallic, superconducting or semiconducting nanowire. The present invention provides structures and devices comprising conductive nanowire segments and conductance constricting nanowire segments having accurately selected phases including crystalline and amorphous states, compositions, morphologies and physical dimensions, including selected cross sectional dimensions, shapes and lengths along the length of a nanowire. Further, the present invention provides methods of processing nanowires capable of patterning a nanowire to form a plurality of conductance constricting segments having selected positions along the length of a nanowire, including conductance constricting segments having reduced cross sectional dimensions and conductance constricting segments comprising one or more insulating materials such as metal oxides.

  19. Plated lamination structures for integrated magnetic devices

    SciTech Connect (OSTI)

    Webb, Bucknell C.

    2014-06-17T23:59:59.000Z

    Semiconductor integrated magnetic devices such as inductors, transformers, etc., having laminated magnetic-insulator stack structures are provided, wherein the laminated magnetic-insulator stack structures are formed using electroplating techniques. For example, an integrated laminated magnetic device includes a multilayer stack structure having alternating magnetic and insulating layers formed on a substrate, wherein each magnetic layer in the multilayer stack structure is separated from another magnetic layer in the multilayer stack structure by an insulating layer, and a local shorting structure to electrically connect each magnetic layer in the multilayer stack structure to an underlying magnetic layer in the multilayer stack structure to facilitate electroplating of the magnetic layers using an underlying conductive layer (magnetic or seed layer) in the stack as an electrical cathode/anode for each electroplated magnetic layer in the stack structure.

  20. Experimental data confronts nuclear structure

    SciTech Connect (OSTI)

    Garrett, J.D.

    1988-01-01T23:59:59.000Z

    The physical content of experimental data for a variety of excitation energies and angular momenta is summarized. The specific nuclear structure questions which these data address are considered. The specific regions discussed are: low-spin data near the particle separation thresholds; low-spin data at intermediate excitation energies; high-spin, near-yrast data and high-spin data at larger excitation energies. 63 refs., 14 figs., 1 tab.

  1. Lithographically defined microporous carbon structures

    DOE Patents [OSTI]

    Burckel, David Bruce; Washburn, Cody M.; Polsky, Ronen; Brozik, Susan M.; Wheeler, David R.

    2013-01-08T23:59:59.000Z

    A lithographic method is used to fabricate porous carbon structures that can provide electrochemical electrodes having high surface area with uniform and controllable dimensions, providing enormous flexibility to tailor the electrodes toward specific applications. Metal nanoparticles deposited on the surface of the porous carbon electrodes exhibit ultra small dimensions with uniform size distribution. The resulting electrodes are rugged, electrically conductive and show excellent electrochemical behavior.

  2. Developments on the CENS Structural Health Monitoring Front

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    on the CENS Structural Health Monitoring Front D. Skolnik,Introduction: Structural Health Monitoring (SHM) Systems

  3. Developments on the CENS Structural Health Monitoring Front

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    on the CENS Structural Health Monitoring Front D. Skolnik,Introduction: Structural Health Monitoring (SHM) Systems

  4. Reliability-based framework for fatigue damage prognosis of bonded structural elements in aerospace composite structures

    E-Print Network [OSTI]

    Gobbato, Maurizio

    2011-01-01T23:59:59.000Z

    and J.D. Achenbach, Structural health monitoring and damagein fatigue, Structural Health Monitoring, 7(1), 37-49, 2008.and J.D. Achenbach, Structural health monitoring and damage

  5. Semiconductor wire array structures, and solar cells and photodetectors based on such structures

    DOE Patents [OSTI]

    Kelzenberg, Michael D.; Atwater, Harry A.; Briggs, Ryan M.; Boettcher, Shannon W.; Lewis, Nathan S.; Petykiewicz, Jan A.

    2014-08-19T23:59:59.000Z

    A structure comprising an array of semiconductor structures, an infill material between the semiconductor materials, and one or more light-trapping elements is described. Photoconverters and photoelectrochemical devices based on such structure also described.

  6. Structured video content analysis : learning spatio-temporal and multimodal structures

    E-Print Network [OSTI]

    Song, Yale

    2014-01-01T23:59:59.000Z

    Video data exhibits a variety of structures: pixels exhibit spatial structure, e.g., the same class of objects share certain shapes and/or colors in image; sequences of frames exhibit temporal structure, e.g., dynamic ...

  7. Structure of the CRA-2014: Structure of the CRA-2014

    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 InstagramStructure of All-Polymer Solar CellsMinimal Requirements for

  8. 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 ...

  9. Effect of high pressure on structural oddities

    E-Print Network [OSTI]

    Johnstone, Russell D. L.

    2010-01-01T23:59:59.000Z

    This thesis describes the effect of pressure on crystal structures that are in some way unusual. The aim was to investigate whether pressure could be used to force these structural oddities to conform to more conventional ...

  10. Structural analysis and assessment of Guastavino vaulting

    E-Print Network [OSTI]

    Reese, Megan L

    2008-01-01T23:59:59.000Z

    This thesis studies the behavior and pathologies of the masonry tile structures built by the R. Guastavino Company in order to provide recommendations on their analysis and assessment. Structural analyses of two specific ...

  11. Understanding molecular crystal structures at extreme conditions

    E-Print Network [OSTI]

    Funnell, Nicholas Paul

    2012-06-22T23:59:59.000Z

    Understanding the structure of matter in the solid state could be considered as being one of the big questions in chemistry. Whereas the structural behaviour of molecules in the gas phase is relatively well-understood, ...

  12. Nuclear Facility Construction - Structural Concrete, May 29,...

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

    Nuclear Facility Construction - Structural Concrete, May 29, 2009 (HSS CRAD 64-15, Rev. 0) Nuclear Facility Construction - Structural Concrete, May 29, 2009 (HSS CRAD 64-15, Rev....

  13. Damaged reinforced concrete structures in fire

    E-Print Network [OSTI]

    Ervine, Adam

    2012-06-25T23:59:59.000Z

    It is crucial for a building to maintain structural stability when subjected to multiple and sequential extreme loads. Safety and economic considerations dictate that structures are built to resist extreme events, such ...

  14. The design and construction of fabric structures

    E-Print Network [OSTI]

    Fang, Rosemarie

    2009-01-01T23:59:59.000Z

    In its short history, fabric structures have fascinated architects and engineers alike. Architects appreciate their unusual shapes and forms while engineers delight in their "pure" structural expression. Capable of spanning ...

  15. Thermoplastic active fiber composites for structural actuation

    E-Print Network [OSTI]

    Dunn, Christopher Thomas, 1971-

    2002-01-01T23:59:59.000Z

    The integration of piezoelectric actuators into a structure can lead to an active structural surface that can adapt by bending or straining to different operational conditions. This can be used to tune desired properties ...

  16. Seismic assessment strategies for masonry structures

    E-Print Network [OSTI]

    DeJong, Matthew J. (Matthew Justin)

    2009-01-01T23:59:59.000Z

    Masonry structures are vulnerable to earthquakes, but their seismic assessment remains a challenge. This dissertation develops and improves several strategies to better understand the behavior of masonry structures under ...

  17. Structure formation: Models, Dynamics and Status

    E-Print Network [OSTI]

    T. Padmanabhan

    1995-08-25T23:59:59.000Z

    The constraints on the models for the structure formation arising from various cosmological observations at different length scales are reviewed. The status of different models for structure formation is examined critically in the light of these observations.

  18. RM methods for multiple fare structure environments

    E-Print Network [OSTI]

    Kayser, Matthew R. (Matthew Russell)

    2008-01-01T23:59:59.000Z

    The rapid growth of Low Cost Carriers (LCC) and their simplified fare structures has created "semi-restricted" fare structures where lower classes are undifferentiated except for price, while higher fare classes are still ...

  19. EVA: evaluation of protein structure prediction servers

    E-Print Network [OSTI]

    Sali, Andrej

    day, sequences of newly available protein structures in the Protein Data Bank (PDB) are sent performance of protein structure prediction servers through a battery of objective measures for prediction

  20. NUCLEAR STRUCTURE AND HEAVY-ION FUSION

    E-Print Network [OSTI]

    Stokstad, R.G.

    2010-01-01T23:59:59.000Z

    mechanisms leading to fusion, nuclear structure is affectingknoi,. A [he "nuclear structure" in fusion will consist ofCI i CO I0 + Be fusion I0 ' -cm Nuclear reaction S-factors

  1. Single Molecule Probes of Lipid Membrane Structure

    E-Print Network [OSTI]

    Livanec, Philip W.

    2009-12-14T23:59:59.000Z

    Biological membranes are highly heterogeneous structures that are thought to use this heterogeneity to organize and modify the function of membrane constituents. Probing membrane organization, structure, and changes therein ...

  2. Past and future of grid shell structures

    E-Print Network [OSTI]

    Paoli, Cline (Cline Aude)

    2007-01-01T23:59:59.000Z

    Because of their original organic shape and the column free space that they provide, the design of grid shell structures challenges architects and structural engineers in more than one way. Very few grid shell building ...

  3. Photonic Crystal Laser-Driven Accelerator Structures

    SciTech Connect (OSTI)

    Cowan, B.; /SLAC

    2005-09-19T23:59:59.000Z

    We discuss simulated photonic crystal structure designs for laser-driven particle acceleration, focusing on three-dimensional planar structures based on the so-called ''woodpile'' lattice. We demonstrate guiding of a speed-of-light accelerating mode by a defect in the photonic crystal lattice and discuss the properties of this mode. We also discuss particle beam dynamics in the structure, presenting a novel method for focusing the beam. In addition we describe some potential coupling methods for the structure.

  4. Adding structure to agent programming languages

    E-Print Network [OSTI]

    Zachmann, Gabriel

    Zachmann (Computer Graphics) #12;Adding structure to agent programming languages Peter Novák, Jürgen Dix

  5. Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure...

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

    Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure in Genotoxicity Studies to Support Engineering Development of Emission Controls Preserving Diesel Exhaust...

  6. Intergrating Magnetotellurics, Soil Gas Geochemistry and Structural...

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

    Intergrating Magnetotellurics, Soil Gas Geochemistry and Structural Analysis to Identify Hidden, High Enthalpy, Extensional Geothermal Systems Intergrating Magnetotellurics, Soil...

  7. Structure determination of enterovirus 71

    SciTech Connect (OSTI)

    Plevka, Pavel; Perera, Rushika; Cardosa, Jane; Kuhn, Richard J.; Rossmann, Michael G. (Purdue); (Sentinext)

    2013-02-20T23:59:59.000Z

    Enterovirus 71 is a picornavirus that causes hand, foot and mouth disease but may induce fatal neurological illness in infants and young children. Enterovirus 71 crystallized in a body-centered orthorhombic space group with two particles in general orientations in the crystallographic asymmetric unit. Determination of the particle orientations required that the locked rotation function excluded the twofold symmetry axes from the set of icosahedral symmetry operators. This avoided the occurrence of misleading high rotation-function values produced by the alignment of icosahedral and crystallographic twofold axes. Once the orientations and positions of the particles had been established, the structure was solved by molecular replacement and phase extension.

  8. Nonlinear structural crack growth monitoring

    DOE Patents [OSTI]

    Welch, Donald E. (Oak Ridge, TN); Hively, Lee M. (Philadelphia, TN); Holdaway, Ray F. (Clinton, TN)

    2002-01-01T23:59:59.000Z

    A method and apparatus are provided for the detection, through nonlinear manipulation of data, of an indicator of imminent failure due to crack growth in structural elements. The method is a process of determining energy consumption due to crack growth and correlating the energy consumption with physical phenomena indicative of a failure event. The apparatus includes sensors for sensing physical data factors, processors or the like for computing a relationship between the physical data factors and phenomena indicative of the failure event, and apparatus for providing notification of the characteristics and extent of such phenomena.

  9. Convectively cooled electrical grid structure

    DOE Patents [OSTI]

    Paterson, J.A.; Koehler, G.W.

    1980-11-10T23:59:59.000Z

    Undesirable distortions of electrical grid conductors from thermal cycling are minimized and related problems such as unwanted thermionic emission and structural failure from overheating are avoided by providing for a flow of fluid coolant within each conductor. The conductors are secured at each end to separate flexible support elements which accommodate to individual longitudinal expansion and contraction of each conductor while resisting lateral displacements, the coolant flow preferably being directed into and out of each conductor through passages in the flexible support elements. The grid may have a modular or divided construction which facilitates manufacture and repairs.

  10. Structural studies of bee melittin

    SciTech Connect (OSTI)

    Eisenberg, D.; Terwilliger, T.C.; Tsui, F.

    1980-10-01T23:59:59.000Z

    The question of how proteins refold in passing from an aqueous phase to an amphipathic environment such as a membrane is beig addressed by a structural study of bee melittin. Melittin is the toxic, main protein of bee venom, and has been shown by others to integrate into natural and synthetic membranes and to lyse a variety of cells. This function is presumably related to its unusual sequence. Except for charges at the N-terminus and at lysine 7, the first 20 residues are largely apolar. In contrast, the last six residues contain four charges and two polar residues.

  11. Photonic Structures Inspired by Nature

    E-Print Network [OSTI]

    Kolle, Mathias

    2014-05-27T23:59:59.000Z

    the surprising helplessness that overwhelms you when you try to eat and identify food and wine purely by taste in a pitch-black environment where your sense of vision is completely useless. Not easy at all. It is truly a refreshing, fantastic experience [1]. 1... 2 01 11 Theoretical aspects of photonic structures has been used, essentially signifying the conservation of energy upon reflection and refraction. Finally the reflectivity of a thin layer is given by R = ArA ? r = r201 + 2r01r12 cos 2? + r 2 12 1...

  12. Financing Structures | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: FinalOffers New Training on Energy6 FederalofE:Financing Mechanisms forMarketStructures

  13. Sandia Energy - Structural Health Monitoring

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

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

  14. Structural Biology | Clean Energy | ORNL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900SteepStrengthening northern NewStructuralSpecificity

  15. SLAMBOT: Structural Health Monitoring Robot using Lamb

    E-Print Network [OSTI]

    Henderson, Thomas C.

    SLAMBOT: Structural Health Monitoring Robot using Lamb Waves Wenyi Wang, Thomas C. Henderson of a mobile robot and a computational sensor network ap- proach to perform structural health monitoring of ultrasound propagation through the material is used to define two structural health monitoring meth- ods: (1

  16. Center of Excellence in Structural Health Monitoring

    E-Print Network [OSTI]

    Center of Excellence in Structural Health Monitoring Inaugural Meeting April 1213 2007 Nittany, Aeronautics and As- tronautics, is Editor-in-Chief of the Structural Health Monitoring international journal and the organizer of the International Workshops on Structural Health Monitoring. His research interests include

  17. Ozone: Integrating Structured and Semistructured Data ?

    E-Print Network [OSTI]

    Abiteboul, Serge

    Ozone: Integrating Structured and Semistructured Data ? Tirthankar Lahiri 1 , Serge Abiteboul 2 language, and we implement our extensions in a system called Ozone. In our approach, structured data may full knowledge of structure. Ozone also enhances both ODMG/OQL and OEM/Lorel by virtue

  18. Whole Earth Structure and Plate Tectonics

    E-Print Network [OSTI]

    Whole Earth Structure and Plate Tectonics Earth Structure (2nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm WW Norton; unless noted otherwise #12; EarthStructure (2nd ed evolution of Earth: from continental drift (early 1900's) to sea-floor spreading (early 1960's) to plate

  19. Learning Structured Perceptrons for Coreference Resolution

    E-Print Network [OSTI]

    Reyle, Uwe

    Conclusion 2 #12;Title Breakdown Learning Structured Perceptrons for Coreference Resolution with Latent president and chief operating officer, succeeding [Gary Wilber]. 3 #12;Title Breakdown Learning Structured president and chief operating officer, succeeding [Gary Wilber]. 3 #12;Title Breakdown Learning Structured

  20. Transformation of structured documents Eila Kuikka

    E-Print Network [OSTI]

    Waterloo, University of

    Transformation of structured documents Eila Kuikka Department of Computer Science, University Structure de nitions of documents have been used successfully for inputting and for- matting in text documents and studies possibilities to extend the use of structure de nitions to document transformations

  1. Structural Damage Detection and Localization Using NETSHM

    E-Print Network [OSTI]

    Gnawali, Omprakash

    Structural Damage Detection and Localization Using NETSHM Krishna Chintalapudi, Jeongyeup Paek and localize damage in large civil structures. Structural engineers often implement and test SHM algorithms the intricacies of wireless networking, or the details of sensor data acquisition. We have implemented a damage

  2. Foundations of Organizational Structures in Multiagent Systems

    E-Print Network [OSTI]

    Dignum, Frank

    Foundations of Organizational Structures in Multiagent Systems Davide Grossi, Frank Dignum, Mehdi of organizational structure in multiagent systems and explain the precise added value and the effects of such organizational structure on the involved agents. To pursue this aim, contributions from social and organization

  3. DNA: structure, dense phases, charges, interactions

    E-Print Network [OSTI]

    Potsdam, Universitt

    DNA: structure, dense phases, charges, interactions #12;Outline 1. DNA: structure, charges, dense phases 2. Counterion and DNA condensation 3. ES DNA-DNA interactions 4. DNA toroidal structures 5. Interactions of real DNA helices 6. DNA-DNA ES recognition 7. DNA melting in aggregates 8. Azimuthal

  4. EFFECTIVE STRUCTURAL HEALTH MONITORING WITH ADDITIVE MANUFACTURING

    E-Print Network [OSTI]

    Boyer, Edmond

    will be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D printing, additive manufacturing, fatigue, intelligent structure INTRODUCTION Additive manufacturing (AM), also known as 3D Printing or Rapid

  5. Calculating Evolutionary Dynamics in Structured Populations

    E-Print Network [OSTI]

    Nowak, Martin A.

    Calculating Evolutionary Dynamics in Structured Populations Charles G. Nathanson1. , Corina E. Here we provide a general formula for calculating evolutionary dynamics in a wide class of structured) Calculating Evolutionary Dynamics in Structured Populations. PLoS Comput Biol 5(12): e1000615. doi:10

  6. Origin and Structure of Dynamic Cooperative Networks

    E-Print Network [OSTI]

    Hauert, Christoph

    Origin and Structure of Dynamic Cooperative Networks Lucas Wardil & Christoph Hauert Department the local structure of the social network. Here we propose a simple theoretical framework to model dynamic among coop- erators24 . Social networks represent a dynamical abstraction of social structures

  7. The Nonperturbative Structure of Hadrons

    E-Print Network [OSTI]

    T. J. Hobbs

    2014-08-23T23:59:59.000Z

    In this thesis we explore a diverse array of issues that strike at the inherently nonperturbative structure of hadrons at momenta below the QCD confinement scale. In so doing, we mainly seek a better control over the partonic substructure of strongly-interacting matter, especially as this relates to the nonperturbative effects that both motivate and complicate experiments --- particularly DIS; among others, such considerations entail sub-leading corrections in $Q^2$, dynamical higher twist effects, and hadron mass corrections. We also present novel calculations of several examples of flavor symmetry violation, which also originates in the long-distance properties of QCD at low energy. Moreover, we outline a recently developed model, framed as a hadronic effective theory amenable to QCD global analysis, which provides new insights into the possibility of nonperturbative heavy quarks in the nucleon. This model can be extended to the scale of the lighter mesons, and we assess the accessibility of the structure function of the interacting pion in the resulting framework.

  8. TRITIUM RESERVOIR STRUCTURAL PERFORMANCE PREDICTION

    SciTech Connect (OSTI)

    Lam, P.S.; Morgan, M.J

    2005-11-10T23:59:59.000Z

    The burst test is used to assess the material performance of tritium reservoirs in the surveillance program in which reservoirs have been in service for extended periods of time. A materials system model and finite element procedure were developed under a Savannah River Site Plant-Directed Research and Development (PDRD) program to predict the structural response under a full range of loading and aged material conditions of the reservoir. The results show that the predicted burst pressure and volume ductility are in good agreement with the actual burst test results for the unexposed units. The material tensile properties used in the calculations were obtained from a curved tensile specimen harvested from a companion reservoir by Electric Discharge Machining (EDM). In the absence of exposed and aged material tensile data, literature data were used for demonstrating the methodology in terms of the helium-3 concentration in the metal and the depth of penetration in the reservoir sidewall. It can be shown that the volume ductility decreases significantly with the presence of tritium and its decay product, helium-3, in the metal, as was observed in the laboratory-controlled burst tests. The model and analytical procedure provides a predictive tool for reservoir structural integrity under aging conditions. It is recommended that benchmark tests and analysis for aged materials be performed. The methodology can be augmented to predict performance for reservoir with flaws.

  9. Structure functions for light nuclei

    SciTech Connect (OSTI)

    S.A. Kulagin, R. Petti

    2010-11-01T23:59:59.000Z

    We discuss the nuclear EMC effect with particular emphasis on recent data for light nuclei including 2H, 3He, 4He, 9Be, 12C and 14N. In order to verify the consistency of available data, we calculate the \\chi^2 deviation between different data sets. We find a good agreement between the results from the NMC, SLAC E139, and HERMES experiments. However, our analysis indicates an overall normalization offset of about 2% in the data from the recent JLab E03-103 experiment with respect to previous data for nuclei heavier than 3He. We also discuss the extraction of the neutron/proton structure function ratio F2n/F2p from the nuclear ratios 3He/2H and 2H/1H. Our analysis shows that the E03-103 data on 3He/2H require a renormalization of about 3% in order to be consistent with the F2n/F2p ratio obtained from the NMC experiment. After such a renormalization, the 3He data from the E03-103 data and HERMES experiments are in a good agreement. Finally, we present a detailed comparison between data and model calculations, which include a description of the nuclear binding, Fermi motion and off-shell corrections to the structure functions of bound proton and neutron, as well as the nuclear pion and shadowing corrections. Overall, a good agreement with the available data for all nuclei is obtained.

  10. Battery structures, self-organizing structures and related methods

    DOE Patents [OSTI]

    Chiang, Yet-Ming (Framingham, MA); Moorehead, William D. (Virginia Beach, VA); Gozdz, Antoni S. (Marlborough, MA); Holman, Richard K. (Belmont, MA); Loxley, Andrew L. (Roslindale, MA); Riley, Jr., Gilbert N. (Marlborough, MA); Viola, Michael S. (Burlington, MA)

    2012-06-26T23:59:59.000Z

    An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

  11. Battery structures, self-organizing structures and related methods

    DOE Patents [OSTI]

    Chiang, Yet-Ming (Framingham, MA); Moorehead, William D. (Virginia Beach, VA); Gozdz, Antoni S. (Marlborough, MA); Holman, Richard K. (Belmont, MA); Loxley, Andrew L. (Roslindale, MA); Riley, Jr., Gilbert N. (Marlborough, MA); Viola, Michael S. (Burlington, MA)

    2011-08-02T23:59:59.000Z

    An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

  12. Battery structures, self-organizing structures and related methods

    DOE Patents [OSTI]

    Chiang, Yet-Ming (Framingham, MA); Moorehead, William D. (Virginia Beach, VA); Gozdz, Antoni S. (Marlborough, MA); Holman, Richard K. (Belmont, MA); Loxley, Andrew L. (Roslindale, MA); Riley, Jr., Gilbert N. (Marlborough, MA); Viola, Michael S. (Burlington, MA)

    2012-05-01T23:59:59.000Z

    An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

  13. Battery structures, self-organizing structures, and related methods

    DOE Patents [OSTI]

    Chiang, Yet-Ming; Moorehead, William Douglas

    2013-11-19T23:59:59.000Z

    An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling forve on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionicaily conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

  14. Battery Structures, self-organizing structures, and related methods

    DOE Patents [OSTI]

    Chiang, Yet-Ming; Moorehead, William Douglas

    2013-11-12T23:59:59.000Z

    An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

  15. Battery structures, self-organizing structures and related methods

    DOE Patents [OSTI]

    Chiang, Yet Ming (Framingham, MA); Moorehead, William Douglas (Virginia Beach, VA); Gozdz, Antoni S. (Marlborough, MA); Holman, Richard K. (Belmont, MA); Loxley, Andrew (Somerville, MA); Riley, Jr., Gilbert N. (Marlborough, MA); Viola, Michael S. (Burlington, MA)

    2009-08-25T23:59:59.000Z

    An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

  16. Lithium, compression and high-pressure structure

    SciTech Connect (OSTI)

    Olinger, B.; Shaner, J.W.

    1983-03-04T23:59:59.000Z

    Lithium is found to transform from a body-centered cubic (bcc) to a face-centered cubic (fcc) structure at 6.9 gigapascals (69 kilobars) and 296 kelvin. The relative volume of the bcc structured lithium at 6.9 gigapascals is 0.718, and the fcc structure is 0.25 percent denser. The bulk modulus and its pressure derivative for the bcc structure are 11.57 gigapascals and 3.4, and for the fcc structure are 13.1 gigapascals and 2.8. Extrapolation of the bcc-fcc phase boundary and the melting curve indiactes a triple point around 15 gigapascals and 500 kelvin.

  17. Experimental Study of Nucleon Structure and QCD

    SciTech Connect (OSTI)

    Jian-Ping Chen

    2012-03-01T23:59:59.000Z

    Overview of Experimental Study of Nucleon Structure and QCD, with focus on the spin structure. Nucleon (spin) Structure provides valuable information on QCD dynamics. A decade of experiments from JLab yields these exciting results: (1) valence spin structure, duality; (2) spin sum rules and polarizabilities; (3) precision measurements of g{sub 2} - high-twist; and (4) first neutron transverse spin results - Collins/Sivers/A{sub LT}. There is a bright future as the 12 GeV Upgrade will greatly enhance our capability: (1) Precision determination of the valence quark spin structure flavor separation; and (2) Precision extraction of transversity/tensor charge/TMDs.

  18. March 29, 2008 OS: Mass Storage Structure 1 Mass-Storage Structure

    E-Print Network [OSTI]

    Adam, Salah

    March 29, 2008 OS: Mass Storage Structure 1 Mass-Storage Structure Chapter 12 #12;March 29, 2008 OS: Mass Storage Structure 2 Objectives Describe the physical structure of secondary and tertiary storage of mass-storage devices Discuss operating-system services provided for mass storage, including RAID

  19. Structural Code Considerations for Solar Rooftop Installations.

    SciTech Connect (OSTI)

    Dwyer, Stephen F.; Dwyer, Brian P.; Sanchez, Alfred

    2014-12-01T23:59:59.000Z

    Residential rooftop solar panel installations are limited in part by the high cost of structural related code requirements for field installation. Permitting solar installations is difficult because there is a belief among residential permitting authorities that typical residential rooftops may be structurally inadequate to support the additional load associated with a photovoltaic (PV) solar installation. Typical engineering methods utilized to calculate stresses on a roof structure involve simplifying assumptions that render a complex non-linear structure to a basic determinate beam. This method of analysis neglects the composite action of the entire roof structure, yielding a conservative analysis based on a rafter or top chord of a truss. Consequently, the analysis can result in an overly conservative structural analysis. A literature review was conducted to gain a better understanding of the conservative nature of the regulations and codes governing residential construction and the associated structural system calculations.

  20. Photonic band gap structure simulator

    DOE Patents [OSTI]

    Chen, Chiping; Shapiro, Michael A.; Smirnova, Evgenya I.; Temkin, Richard J.; Sirigiri, Jagadishwar R.

    2006-10-03T23:59:59.000Z

    A system and method for designing photonic band gap structures. The system and method provide a user with the capability to produce a model of a two-dimensional array of conductors corresponding to a unit cell. The model involves a linear equation. Boundary conditions representative of conditions at the boundary of the unit cell are applied to a solution of the Helmholtz equation defined for the unit cell. The linear equation can be approximated by a Hermitian matrix. An eigenvalue of the Helmholtz equation is calculated. One computation approach involves calculating finite differences. The model can include a symmetry element, such as a center of inversion, a rotation axis, and a mirror plane. A graphical user interface is provided for the user's convenience. A display is provided to display to a user the calculated eigenvalue, corresponding to a photonic energy level in the Brilloin zone of the unit cell.

  1. Method of forming structural heliostat

    DOE Patents [OSTI]

    Anderson, Alfred J. (Littleton, CO)

    1984-06-26T23:59:59.000Z

    In forming a heliostat having a main support structure and pivoting and tilting motors and gears and a mirror module for reflecting solar energy onto a collector, the improvement characterized by a method of forming the mirror module in which the mirror is laid upon a solid rigid supporting bed in one or more sections, with or without focusing; a mirror backing sheet is applied by first applying respective thin layers of silicone grease and, thereafter, progressively rolling application to eliminate air bubbles; followed by affixing of a substrate assembly to the mirror backing sheet to form a mirror module that does not curve because of thermally induced stresses and differential thermal expansion or contraction effects. The silicone grease also serves to dampen fluttering of the mirror and protect the mirror backside against adverse effects of the weather. Also disclosed are specific details of preferred embodiments.

  2. Composite electrode/electrolyte structure

    DOE Patents [OSTI]

    Visco, Steven J. (Berkeley, CA); Jacobson, Craig P. (El Cerrito, CA); DeJonghe, Lutgard C. (Lafayette, CA)

    2004-01-27T23:59:59.000Z

    Provided is an electrode fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode substrate is maximized. Onto this electrode in the green state, a green ionic (e.g., electrolyte) film is deposited and the assembly is co-fired at a temperature suitable to fully densify the film while the substrate retains porosity. Subsequently, a catalytic material is added to the electrode structure by infiltration of a metal salt and subsequent low temperature firing. The invention allows for an electrode with high electronic conductivity and sufficient catalytic activity to achieve high power density in ionic (electrochemical) devices such as fuel cells and electrolytic gas separation systems.

  3. Structure of Noncommutative Fock space

    E-Print Network [OSTI]

    Si-Cong Jing; Qiu-Yu Liu; Tu-Nan Ruan

    2005-05-05T23:59:59.000Z

    The structure of the state-vector space of identical bosons in noncommutative spaces is investigated. To maintain Bose-Einstein statistics the commutation relations of phase space variables should simultaneously include coordinate-coordinate non-commutativity and momentum-momentum non-commutativity, which lead to noncommutative Fock space. By this we mean that creation and annihilation operators corresponding to different degrees of freedom of the bosons do not commute each other. The main character of the noncommutative Fock space is there are no ordinary number representations because of the non-commutativity between different number operators. However, eigenvectors of several pairs of commuting Hermitian operators are obtained which can also be served as bases in this Fock space. As a simple example, an explicit form of two-dimensional canonical coherent state in this noncommutative Fock space is constructed and its properties are discussed.

  4. Combustion fume structure and dynamics

    SciTech Connect (OSTI)

    Flagan, R.C.

    1992-08-01T23:59:59.000Z

    The focus of this research program is on elucidating the fundamental processes that determine the particle size distribution, composition, and agglomerate structures of coal ash fumes. The ultimate objective of this work is the development and validation of a model for the dynamics of combustion fumes, describing both the evolution of the particle size distribution and the particle morphology. The study employs model systems to address the fundamental questions and to provide rigorous validation of the models to be developed. This first phase of the project has been devoted to the development of a detailed experimental strategy that will allow agglomerates with a broad range of fractal dimensions to be studied in the laboratory. (VC)

  5. Structure functions for light nuclei

    SciTech Connect (OSTI)

    Kulagin, S. A. [Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow (Russian Federation); Petti, R. [Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208 (United States)

    2010-11-15T23:59:59.000Z

    We discuss the nuclear EMC effect with particular emphasis on recent data for light nuclei including {sup 2}H, {sup 3}He, {sup 4}He, {sup 9}Be, {sup 12}C, and {sup 14}N. In order to verify the consistency of available data, we calculate the {chi}{sup 2} deviation between different data sets. We find a good agreement between the results from the NMC, SLAC E139, and HERMES experiments. However, our analysis indicates an overall normalization offset of about 2% in the data from the recent JLab E03-103 experiment with respect to previous data for nuclei heavier than {sup 3}He. We also discuss the extraction of the neutron/proton structure function ratio F{sub 2}{sup n}/F{sub 2}{sup p} from the nuclear ratios {sup 3}He/{sup 2}H and {sup 2}H/{sup 1}H. Our analysis shows that the E03-103 data on {sup 3}He/{sup 2}H require a renormalization of about 3% in order to be consistent with the F{sub 2}{sup n}/F{sub 2}{sup p} ratio obtained from the NMC experiment. After such a renormalization, the {sup 3}He data from the E03-103 and HERMES experiments are in a good agreement. Finally, we present a detailed comparison between data and model calculations, which include a description of the nuclear binding, Fermi motion, and off-shell corrections to the structure functions of bound proton and neutron, as well as the nuclear pion and shadowing corrections. Overall, a good agreement with the available data for all nuclei is obtained.

  6. Vibration-based structural health monitoring of highway bridges

    E-Print Network [OSTI]

    Guan, Hong

    2006-01-01T23:59:59.000Z

    Principles of Structural Health Monitoring, Class Notes .Web-Based Structural Health Monitoring of a FRP CompositeA Review of Structural Health Monitoring Literature: 1996-

  7. Passive and Active Sensing Technologies for Structural Health Monitoring /

    E-Print Network [OSTI]

    Do, Richard

    2014-01-01T23:59:59.000Z

    variability on structural health monitoring, Philos. Trans.Sensing Methods in Structural Health Monitoring for Aircraftof guided wave structural health monitoring systems, Smart

  8. Multifunctional composites and structures with integrated mechanical and electromagnetic properties

    E-Print Network [OSTI]

    Amirkhizi, Alireza Vakil

    2006-01-01T23:59:59.000Z

    Mal, A. , 2004. Structural health monitoring. Mechanics 33,field of Structural Health Monitoring, or SHM. Researchersfor structural composites with in-situ health monitoring

  9. Detection of Damage in a Composite Structure Using Guided Waves

    E-Print Network [OSTI]

    Baid, Harsh Kumar

    2012-01-01T23:59:59.000Z

    Workshop on Structural Health Monitoring, pp 1923-1931,A Conceptual Structural Health Monitoring System Based onII program, Structural Health Monitoring , F. -K. Chang

  10. Comparison of shape reconstruction strategies in a complex flexible structure

    E-Print Network [OSTI]

    Mao, Zhu

    2008-01-01T23:59:59.000Z

    overview of wireless structural health monitoring for civilfor Autonomous Structural Health Monitoring, Proceedings ofISSUES FOR STRUCTURAL HEALTH MONITORING, 23rd Aerospace

  11. TOPSAN: a collaborative annotation environment for structural genomics.

    E-Print Network [OSTI]

    Weekes, Dana; Krishna, S; Bakolitsa, Constantina; Wilson, Ian A; Godzik, Adam; Wooley, John

    2010-01-01T23:59:59.000Z

    environment for structural genomics Dana Weekes 1 , S Srihigh-throughput structural genomics centers, despite theirbeing determined by structural genomics centers and high-

  12. Water Structure at Hematite-Water Interfaces. | EMSL

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

    Structure at Hematite-Water Interfaces. Water Structure at Hematite-Water Interfaces. Abstract: The atomic-level structure of water at mineral surfaces is an important controlling...

  13. Structure and Dynamics Vol.1 No.2: Editorial Commentary

    E-Print Network [OSTI]

    White, Douglas R Institute of Mathematical Behavioral Science and Department of Anthropology; Manlove, Robert F.

    2005-01-01T23:59:59.000Z

    This issue of Structure and Dynamics is dedicated to thethe second issue of Structure and Dynamics with considerablein forthcoming issues of Structure and Dynamics. Color and

  14. Photonic Crystal Laser-Driven Accelerator Structures

    SciTech Connect (OSTI)

    Cowan, Benjamin M.

    2007-08-22T23:59:59.000Z

    Laser-driven acceleration holds great promise for significantly improving accelerating gradient. However, scaling the conventional process of structure-based acceleration in vacuum down to optical wavelengths requires a substantially different kind of structure. We require an optical waveguide that (1) is constructed out of dielectric materials, (2) has transverse size on the order of a wavelength, and (3) supports a mode with speed-of-light phase velocity in vacuum. Photonic crystals---structures whose electromagnetic properties are spatially periodic---can meet these requirements. We discuss simulated photonic crystal accelerator structures and describe their properties. We begin with a class of two-dimensional structures which serves to illustrate the design considerations and trade-offs involved. We then present a three-dimensional structure, and describe its performance in terms of accelerating gradient and efficiency. We discuss particle beam dynamics in this structure, demonstrating a method for keeping a beam confined to the waveguide. We also discuss material and fabrication considerations. Since accelerating gradient is limited by optical damage to the structure, the damage threshold of the dielectric is a critical parameter. We experimentally measure the damage threshold of silicon for picosecond pulses in the infrared, and determine that our structure is capable of sustaining an accelerating gradient of 300 MV/m at 1550 nm. Finally, we discuss possibilities for manufacturing these structures using common microfabrication techniques.

  15. Reversible Hydrogen Storage Materials Structure, Chemistry, and Electronic Structure

    SciTech Connect (OSTI)

    Robertson, Ian M. [University of Wisconsin-Madison; Johnson, Duane D. [Ames Lab., Iowa

    2014-06-21T23:59:59.000Z

    To understand the processes involved in the uptake and release of hydrogen from candidate light-weight metal hydride storage systems, a combination of materials characterization techniques and first principle calculation methods have been employed. In addition to conventional microstructural characterization in the transmission electron microscope, which provides projected information about the through thickness microstructure, electron tomography methods were employed to determine the three-dimensional spatial distribution of catalyst species for select systems both before and after dehydrogenation. Catalyst species identification as well as compositional analysis of the storage material before and after hydrogen charging and discharging was performed using a combination of energy dispersive spectroscopy, EDS, and electron energy loss spectroscopy, EELS. The characterization effort was coupled with first-principles, electronic-structure and thermodynamic techniques to predict and assess meta-stable and stable phases, reaction pathways, and thermodynamic and kinetic barriers. Systems studied included:NaAlH4, CaH2/CaB6 and Ca(BH4)2, MgH2/MgB2, Ni-Catalyzed Magnesium Hydride, TiH2-Catalyzed Magnesium Hydride, LiBH4, Aluminum-based systems and Aluminum

  16. Conformal coating of highly structured surfaces

    DOE Patents [OSTI]

    Ginley, David S.; Perkins, John; Berry, Joseph; Gennett, Thomas

    2012-12-11T23:59:59.000Z

    Method of applying a conformal coating to a highly structured substrate and devices made by the disclosed methods are disclosed. An example method includes the deposition of a substantially contiguous layer of a material upon a highly structured surface within a deposition process chamber. The highly structured surface may be associated with a substrate or another layer deposited on a substrate. The method includes depositing a material having an amorphous structure on the highly structured surface at a deposition pressure of equal to or less than about 3 mTorr. The method may also include removing a portion of the amorphous material deposited on selected surfaces and depositing additional amorphous material on the highly structured surface.

  17. Advanced structure-borne sound Wave mobilities

    E-Print Network [OSTI]

    Berlin,Technische Universität

    ^p e j(v -p ) · Wave mobilities © Prof. B.A.T. Petersson Advanced structure-borne sound · Decomposed1 Advanced structure-borne sound p(kx) v(kx) v = p Y = ^ve- jkx x ejv ^pe- jkx x e jp = ^v ^p = ^v;2 Advanced structure-borne sound · Interface mobilities s C kp = 2p C kq = 2q C ; p = 0 ±1 ±2 ±3... ; q = 0

  18. Fluid control structures in microfluidic devices

    DOE Patents [OSTI]

    Mathies, Richard A. (Moraga, CA); Grover, William H. (Berkeley, CA); Skelley, Alison (Berkeley, CA); Lagally, Eric (Oakland, CA); Liu, Chung N. (Albany, CA)

    2008-11-04T23:59:59.000Z

    Methods and apparatus for implementing microfluidic analysis devices are provided. A monolithic elastomer membrane associated with an integrated pneumatic manifold allows the placement and actuation of a variety of fluid control structures, such as structures for pumping, isolating, mixing, routing, merging, splitting, preparing, and storing volumes of fluid. The fluid control structures can be used to implement a variety of sample introduction, preparation, processing, and storage techniques.

  19. Lattice Vibrations and Superconductivity in Layered Structures

    E-Print Network [OSTI]

    Allen, Roland E.; Alldredg, GP; WETTE, FWD.

    1970-01-01T23:59:59.000Z

    PHYSICAL REVIEW B VOLUME 2, NUMBER 7 1 OCTOB ER, 1970 Lattice Vibrations and Superconductivity in Layered Structures* B. E. Allen, G. P. Alldredge, and F. W. de bette DePartment of Physics, University of Texas, Austin, Texas 78712 (Received 18... May 1970) In order to estimate the influence of both surface and interface effects on phonon frequencies and superconducting transition temperatures in layered structures, we have calculated the vibrational modes of structures composed...

  20. Structural model uncertainty in stochastic simulation

    SciTech Connect (OSTI)

    McKay, M.D.; Morrison, J.D. [Los Alamos National Lab., NM (United States). Technology and Safety Assessment Div.

    1997-09-01T23:59:59.000Z

    Prediction uncertainty in stochastic simulation models can be described by a hierarchy of components: stochastic variability at the lowest level, input and parameter uncertainty at a higher level, and structural model uncertainty at the top. It is argued that a usual paradigm for analysis of input uncertainty is not suitable for application to structural model uncertainty. An approach more likely to produce an acceptable methodology for analyzing structural model uncertainty is one that uses characteristics specific to the particular family of models.

  1. Method of casting patterned dielectric structures

    DOE Patents [OSTI]

    Poco, John F. (Livermore, CA); Hrubesh, Lawrence W. (Livermore, CA)

    2001-01-01T23:59:59.000Z

    A pattern of dielectric structures are formed directly on a substrate in a single step using sol-gel chemistry and molding procedures. The resulting dielectric structures are useful in vacuum applications for electronic devices. Porous, lightweight structures having a high aspect ratio that are suitable for use as spacers between the faceplate and baseplate of a field emission display can be manufactured using this method.

  2. Algebraic Sub-Structuring for Electromagnetic Applications

    SciTech Connect (OSTI)

    Yang, C.; Gao, W.G.; Bai, Z.J.; Li, X.Y.S.; Lee, L.Q.; Husbands, P.; Ng, E.G.; /LBL, Berkeley /UC, Davis /SLAC

    2006-06-30T23:59:59.000Z

    Algebraic sub-structuring refers to the process of applying matrix reordering and partitioning algorithms to divide a large sparse matrix into smaller submatrices from which a subset of spectral components are extracted and combined to form approximate solutions to the original problem. In this paper, they show that algebraic sub-structuring can be effectively used to solve generalized eigenvalue problems arising from the finite element analysis of an accelerator structure.

  3. Stabilized fuel with silica support structure

    SciTech Connect (OSTI)

    Poco, J.F.; Hrubesh, L.W.

    1991-12-31T23:59:59.000Z

    This report describes a stabilized fuel which is supported by a silica support structure. The silica support structure provides a low density, high porosity vehicle for safely carrying hydrocarbon fuels. The silica support structure for hydrocarbon fuel does not produce toxic material residues on combustion which would pose environmentally sensitive disposal problems. The silica stabilized fuel composition is useful as a low temperature, continuous burning fire starter for wood or charcoal.

  4. Identification of civil structural parameters using the extended Kalman filter

    E-Print Network [OSTI]

    Foun, Kevin

    2010-01-01T23:59:59.000Z

    In the context of civil and industrial structures, structural control and damage detection have recently become an area of great interest. The safety of a structure is always the most important issue for structural engineers, ...

  5. The Spin Structure of the Nucleon

    E-Print Network [OSTI]

    Filippone, B W; Ji, Xiangdong

    2001-01-01T23:59:59.000Z

    We present an overview of recent experimental and theoretical advances in our understanding of the spin structure of protons and neutrons.

  6. The Spin Structure of the Nucleon

    E-Print Network [OSTI]

    B. W. Filippone; Xiangdong Ji

    2001-01-19T23:59:59.000Z

    We present an overview of recent experimental and theoretical advances in our understanding of the spin structure of protons and neutrons.

  7. Brain Receptor Structures Key to Future Therapeutics

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

    Brain Receptor Structures Key to Future Therapeutics Print With an aging population in America, it is more important than ever to discover ways to treat or prevent diseases...

  8. Event Structure and Grammatical Patterns : : Resultative Constructions

    E-Print Network [OSTI]

    Lee, Leslie

    2013-01-01T23:59:59.000Z

    FIGURES! Figure! 1.1:! Resultative! CX ! (Goldberg! 1995:!Figure! 1.2:! Resultative! CX ! +! wipe! (Goldberg! 1995:!of! English! argument! structure! CX s! (Goldberg! 2006:!

  9. Incommensurate Structure of Phosphorus Phase IV

    SciTech Connect (OSTI)

    Fujihisa, Hiroshi; Gotoh, Yoshito; Yamawaki, Hiroshi; Sakashita, Mami; Takeya, Satoshi; Honda, Kazumasa [National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan); Akahama, Yuichi; Kawamura, Haruki [Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako-gun, Hyogo 678-1297 (Japan); Ohishi, Yasuo [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Mikazuki, Sayo-gun, Hyogo 679-5198 (Japan)

    2007-04-27T23:59:59.000Z

    There are six known phases for phosphorus at room temperature under high pressure. Only the structure of phase IV, which exists from 107 GPa to 137 GPa, remains unsolved. We performed a powder x-ray diffraction experiment and a Rietveld analysis and successfully determined its structure to be an incommensurately modulated structure by only 1 site of atomic position. High-pressure phases of halogens and chalcogens have previously been shown to have a similar modulated structure; however, phosphorus phase IV is different from them and was shown to be the third case.

  10. Structure, Charge Distribution, and Electron Hopping Dynamics...

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

    Charge Distribution, and Electron Hopping Dynamics in Magnetite (Fe3O4) (100) Surfaces from First Principles. Structure, Charge Distribution, and Electron Hopping Dynamics in...

  11. Electronic Excitations Transform Structure of Ceramics | ornl...

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

    & Ti atoms; O vacancies, VO, are small spheres with blue cores. Ab initio molecular dynamics calculations reveal that electronic excitations induce a structural instability that...

  12. Crump Geyser: High Precision Geophysics & Detailed Structural...

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

    Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling John Casteel Nevada Geothermal Power Co. Validation of Innovative Exploration...

  13. HOLOMORPHIC MOTIONS AND STRUCTURAL STABILITY FOR ...

    E-Print Network [OSTI]

    1910-70-80T23:59:59.000Z

    namics in one variable, we prove the structural stability of hyperbolic polynomial automor- phisms in ..... This extension is characterized by a harmonic Beltrami.

  14. BLOCK STRUCTURED QUADRATIC PROGRAMMING FOR THE ...

    E-Print Network [OSTI]

    2009-09-11T23:59:59.000Z

    Block Structured Quadratic Programming for the Direct Multiple Shooting Method. 3. Figure 1. Coordinates, angles, and forces in the singletrack car model used...

  15. Stratigraphy, Structure, Hydrothermal Alteration and Ore Mineralizatio...

    Open Energy Info (EERE)

    Mexico- a Detailed Overview Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Stratigraphy, Structure, Hydrothermal Alteration and Ore Mineralization...

  16. Structural Automotive Components from Composite Materials

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

    Focal Project 4: Structural Automotive Components from Composite Materials Libby Berger (General Motors) John Jaranson (Ford) Presented by Hamid Kia (General Motors) May 16, 2012...

  17. Digital Mapping Of Structurally Controlled Geothermal Features...

    Open Energy Info (EERE)

    GPS Units And Pocket Computers Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Digital Mapping Of Structurally Controlled Geothermal Features...

  18. Digital Mapping Of Structurally Controlled Geothermal Features...

    Open Energy Info (EERE)

    Gps Units And Pocket Computers Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Digital Mapping Of Structurally Controlled Geothermal Features...

  19. Structure and Transformation of Amorphous Calcium Carbonate:...

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

    Transformation of Amorphous Calcium Carbonate: A Solid-State 43Ca NMR and Computational Molecular Dynamics Structure and Transformation of Amorphous Calcium Carbonate: A...

  20. Structural Characteristics of Synthetic Amorphous Calcium Carbonate

    SciTech Connect (OSTI)

    Michel, F. Marc; MacDonald, Jason; Feng, Jian; Phillips, Brian L.; Ehm, Lars; Tarabrella, Cathy; Parise, John B.; Reeder, Richard J. (SBU)

    2008-08-06T23:59:59.000Z

    Amorphous calcium carbonate (ACC) is an important phase involved in calcification by a wide variety of invertebrate organisms and is of technological interest in the development of functional materials. Despite widespread scientific interest in this phase a full characterization of structure is lacking. This is mainly due to its metastability and difficulties in evaluating structure using conventional structure determination methods. Here we present new findings from the application of two techniques, pair distribution function analysis and nuclear magnetic resonance spectroscopy, which provide new insight to structural aspects of synthetic ACC. Several important results have emerged from this study of ACC formed in vitro using two common preparation methods: (1) ACC exhibits no structural coherence over distances > 15 {angstrom} and is truly amorphous; (2) most of the hydrogen in ACC is present as structural H{sub 2}O, about half of which undergoes restricted motion on the millisecond time scale near room temperature; (3) the short- and intermediate-range structure of ACC shows no distinct match to any known structure in the calcium carbonate system; and (4) most of the carbonate in ACC is monodentate making it distinctly different from monohydrocalcite. Although the structure of synthetic ACC is still not fully understood, the results presented provide an important baseline for future experiments evaluating biogenic ACC and samples containing certain additives that may play a role in stabilization of ACC, crystallization kinetics, and final polymorph selection.

  1. Protein Structure Suggests Role as Molecular Adapter

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

    Protein Structure Suggests Role as Molecular Adapter Print To split and copy DNA during replication, all cellular organisms use a multicomponent molecular machine known as the...

  2. 6.004 Computation Structures, Fall 2002

    E-Print Network [OSTI]

    Ward, Stephen A.

    Introduces architecture of digital systems, emphasizing structural principles common to a wide range of technologies. Multilevel implementation strategies; definition of new primitives (e.g., gates, instructions, procedures, ...

  3. Structured Pillar Electrodes - Energy Innovation Portal

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

    Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Structured Pillar Electrodes Brookhaven National Laboratory Contact BNL About This Technology

    ...

  4. Biomineralized structural materials with functional optical properties

    E-Print Network [OSTI]

    Li, Ling, Ph. D. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    Many biological structural materials exhibit "mechanical property amplification" through their intricate hierarchical composite designs. In the past several decades, significant progress has been achieved in elucidating ...

  5. Spin dependent parton distributions and structure functions

    SciTech Connect (OSTI)

    W. Bentz; I. C. Cloet; T. Ito; A. W. Thomas; K. Yazaki

    2007-09-10T23:59:59.000Z

    Nuclear parton distributions and structure functions are determined in an effective chiral quark theory. We also discuss an extension of our model to fragmentation functions.

  6. Calculating Plutonium and Praseodymium Structural Transformations...

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

    Calculating Plutonium and Praseodymium Structural Transformations A newly-developed hybrid computational method has computed, for the first time, plutonium's exotic crystal...

  7. Investigations of Interfacial Structure in Thermoelectric Tellurides...

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

    More Documents & Publications Thermoelectric Materials by Design, Computational Theory and Structure Strategies for High Thermoelectric zT in Bulk Materials Strategies for...

  8. Low-Energy Parking Structure Design (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01T23:59:59.000Z

    This guide provides design teams with best practices for parking structure energy efficiency in the form of goals for each design aspect that affects energy use.

  9. Proton structure and tensor gluons

    E-Print Network [OSTI]

    George Savvidy

    2014-07-31T23:59:59.000Z

    We consider a possibility that inside the proton and, more generally, inside the hadrons there are additional partons - tensor-gluons, which can carry a part of the proton momentum. The tensor-gluons have zero electric charge, like gluons, but have a larger spin. Inside the proton a nonzero density of the tensor-gluons can be generated by the emission of tensor-gluons by gluons. The last mechanism is typical for non-Abelian tensor gauge theories, in which there exists a gluon-tensor-tensor vertex of order g. Therefore the number of gluons changes not only because a quark may radiate a gluon or because a gluon may split into a quark-antiquark pair or into two gluons, but also because a gluon can split into two tensor-gluons. The process of gluon splitting suggests that part of the proton momentum which was carried by neutral partons is shared between vector and tensor gluons. We derive evolution equations for the parton distribution functions which take into account these new processes. The momentum sum rule allows to find the tensor-gluons contribution to the Callan-Simanzik beta function and to calculate the corresponding anomalous dimensions. This contribution changes the behavior of the structure functions, and the logarithmic correction to the Bjorken scaling becomes more mild. This also influences the unification scale at which the coupling constants of the Standard Model merge, shifting its value to lower energies of order of 40 TeV.

  10. Structural stability of cooling flows

    E-Print Network [OSTI]

    Henrik Omma; James Binney

    2003-12-31T23:59:59.000Z

    Three-dimensional hydrodynamical simulations are used to investigate the structural stability of cooling flows that are episodically heated by jets from a central AGN. The radial profile of energy deposition is controlled by (a) the power of the jets, and (b) the pre-outburst density profile. A delay in the ignition of the jets causes more powerful jets to impact on a more centrally concentrated medium. The net effect is a sufficient increase in the central concentration of energy deposition to cause the post-outburst density profile to be less centrally concentrated than that of an identical cluster in which the outburst happened earlier and was weaker. These results suggest that the density profiles of cooling flows oscillate around an attracting profile, thus explaining why cooling flows are observed to have similar density profiles. The possibility is raised that powerful FR II systems are ones in which this feedback mechanism has broken down and a runaway growth of the source parameters has occurred.

  11. Developments on the CENS Structural Health Monitoring Front (SEI 2)

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    on the CENS Structural Health Monitoring Front M. Kohler, J.framework for structural health monitoring (SHM). hea lth

  12. axisymmetric concrete structure: Topics by E-print Network

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

    Structural Walls University of California eScholarship Repository Summary: Nonlinear Analysis of Presetressed Concrete Structures Under Monotonic and Cyclic...

  13. Reducing Coalition Structures via Agreement Specification Guido Boella

    E-Print Network [OSTI]

    van der Torre, Leon

    on multiagent systems: a mind structure, a power structure, a dependence structure and a coalition structure systems General Terms MAS theory Keywords Coalition formation, power theory 1. INTRODUCTION The concept agents. In [1] we propose a way to define coalition structures from power structures. In this paper we

  14. Stabilization and Enhancement of Sand-modified Root Zones for High Traffic Sports Turfs with Mesh Elements: A Randomly Oriented, Interlocking Mesh Inclusion system.

    E-Print Network [OSTI]

    Beard, James B.; Sifers, Samuel I.

    1993-01-01T23:59:59.000Z

    left): ? (a) Santa Anita horse race track in Arcadia, California, installed in 1989 . (b) Ewood Park soccer (football) field in Blackburn, England, rebuilt in 1991 . (c) Golf course tees at Woburn Abbey, Woburn, England, installed in 1988. (d... treatments at the Texas A&M Turfgrass Laboratory and the turf race course at Santa Anita Park in Arcadia, California. Based on these studies, Sifers and Beard (1992) have deter mined CIY -performance criteria for turfed horse race tracks (Table E-2...

  15. Minimum TI4085D interlock setpoint at 1.0 GPM sludge-only feed rate and 14,000 ppm TOC

    SciTech Connect (OSTI)

    Choi, A.S.

    1996-11-05T23:59:59.000Z

    DWPF-Engineering requested that SRTC determine the minimum indicated melter vapor space temperature that must be maintained in order to minimize the potential for off-gas flammability during a steady sludge-only feeding operation at 1.0 GPM containing 14,000 ppm total organic carbon. The detailed scope of this request is described in the technical task request, HLW-DWPF-TTR-960092 (DWPT Activity No. DWPT-96-0065). In response to this request, a dynamic simulation study was conducted in which the concentration of flammable gases was tracked throughout the course of a simulated 3X off-gas surge using the melter off-gas (MOG) dynamics model. The results of simulation showed that as long as the melter vapor space temperature as indicated on TI4085D is kept at 570 degrees C or higher, the peak concentration of combustible gases in the melter off-gas system is not likely to exceed 60 percent of the lower flammability limit (LFL). The minimum TI4085D of 570 degrees C is valid only when the air purges to FIC3221A and FIC3221B are maintained at or above 850 and 250 lb/hr, respectively. All the key bases and assumptions along with the input data used in the simulation are described in the attached E-7 calculation note.

  16. Structural health monitoring (SHM) entails the use of structural response data to identify the existence, location, and severity of structural damage. However, damage

    E-Print Network [OSTI]

    Lynch, Jerome P.

    ABSTRACT Structural health monitoring (SHM) entails the use of structural response data to identify in the structural health monitoring (SHM) community seek means of detecting the onset of damage using structural response data. For example, early efforts in the structural health monitoring field concentrated

  17. Structure of an African city : study of Ibadan, Nigeria : city structure and morphology

    E-Print Network [OSTI]

    Murphy, Stephan L. (Stephan Lane), 1971-

    1998-01-01T23:59:59.000Z

    The study of Ibadan, Nigeria was conducted to analyze how Colonization has altered, or not altered the structure of the traditional African city form of this Yoruba town. The study encompasses structural city form elements ...

  18. A comparison of structural and non-structural econometric models in the Toronto office market

    E-Print Network [OSTI]

    Gole, Kimberly

    2014-01-01T23:59:59.000Z

    This thesis aims to compare five systems of econometric equations to describe the Toronto office market. It compares four structural systems differing in their demand equations and a non-structural system that does not ...

  19. Structural composites with integrated electromagnetic functionality

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    Structural composites with integrated electromagnetic functionality Syrus C. Nemat-Nasser, Alireza, such as wires, into polymer-based or ceramic-based composites. In addition to desired structural properties, these materials may be leveraged for active tasks such as filtering. The advantages of such hybrid composites

  20. DNA Transport in Hierarchically-Structured

    E-Print Network [OSTI]

    New Mexico, University of

    porous metallic tubes.3 The fabrication of spherical, cylindri- cal, and hollow colloidal crystals using-dimensional periodic structures with micrometer-scale periods have been fabricated with nano- particle inks.8 Well definition, is a promising approach for the fabrication of complex micro- and nano- structures.15

  1. MULTIFUNCTIONALTOPOLOGY DESIGN OF CELLULAR MATERIAL STRUCTURES1

    E-Print Network [OSTI]

    Seepersad, Carolyn Conner

    apply the method to design stiff, actively cooled prismatic cellular materials for the combustor liners that require not only structural performance but also lightweight thermal management capabilities [1 structural and thermal properties [4,7,8]. Alternatively, topology design optimization techniques are used

  2. Smart Structures: Model Development and Control Applications

    E-Print Network [OSTI]

    for smart structure which utilize piezoelectric, electrostrictive, magnetostrictive or shape memory alloys are dictated by the design requirements for the system. For aeronautic and aerospace systems, control which, in certain aerospace structures, may require the scavenging of power from other components

  3. Structural Health Monitoring 11(4) 413421

    E-Print Network [OSTI]

    Ray, Asok

    alloy structures. It pre- sents a statistically inspired recursive method for in situ estimation specimens, made of 7075-T6 aluminum alloys. Keywords fatigue crack propagation, remaining useful life sources of structural degradation in aerospace, mechanical, and petrochemical systems.1 Numerous fatigue

  4. Energy Storage Structural Composites: TONY PEREIRA

    E-Print Network [OSTI]

    Guo, John Zhanhu

    Energy Storage Structural Composites: a Review TONY PEREIRA 1, *, ZHANHU GUO 1 , S. NiEH 2 , J: This study demonstrates the construction of a multifunctional composite structure capable of energy storage) composites were laminated with energy storage all-solid-state thin- film lithium cells. The processes

  5. Are Hadrons Shell-Structured? Paolo Palazzi

    E-Print Network [OSTI]

    Are Hadrons Shell-Structured? Paolo Palazzi particlez.org, PO Box 62, CH-1217 Meyrin 1, Switzerland atoms and nuclei, are shell-structured. The mesonic shells mass series, combined with the results of a mass quantization analysis, reveals striking similarities with the nuclear shells. In addition

  6. Optical feedback structures and methods of making

    DOE Patents [OSTI]

    Snee, Preston T; Chan, Yin Thai; Nocera, Daniel G; Bawendi, Moungi G

    2014-11-18T23:59:59.000Z

    An optical resonator can include an optical feedback structure disposed on a substrate, and a composite including a matrix including a chromophore. The composite disposed on the substrate and in optical communication with the optical feedback structure. The chromophore can be a semiconductor nanocrystal. The resonator can provide laser emission when excited.

  7. Prsentation gnrale Structure client/serveur

    E-Print Network [OSTI]

    Grigoras, .Romulus

    (API C) Programmation (API Java) Objectifs lments de base Numro de ports standards (notorious) /etcPrsentation gnrale Structure client/serveur Programmation (API C) Programmation (API Java #12;Prsentation gnrale Structure client/serveur Programmation (API C) Programmation (API Java

  8. Particle beam and crabbing and deflecting structure

    DOE Patents [OSTI]

    Delayen, Jean (Yorktown, VA)

    2011-02-08T23:59:59.000Z

    A new type of structure for the deflection and crabbing of particle bunches in particle accelerators comprising a number of parallel transverse electromagnetic (TEM)-resonant) lines operating in opposite phase from each other. Such a structure is significantly more compact than conventional crabbing cavities operating the transverse magnetic TM mode, thus allowing low frequency designs.

  9. Automated MAD and MIR structure solution

    SciTech Connect (OSTI)

    Terwilliger, Thomas C., E-mail: terwilliger@lanl.gov [Structural Biology Group, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Berendzen, Joel [Biophysics Group, Mail Stop D454, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Structural Biology Group, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    1999-04-01T23:59:59.000Z

    A fully automated procedure for solving MIR and MAD structures has been developed using a scoring scheme to convert the structure-solution process into an optimization problem. Obtaining an electron-density map from X-ray diffraction data can be difficult and time-consuming even after the data have been collected, largely because MIR and MAD structure determinations currently require many subjective evaluations of the qualities of trial heavy-atom partial structures before a correct heavy-atom solution is obtained. A set of criteria for evaluating the quality of heavy-atom partial solutions in macromolecular crystallography have been developed. These have allowed the conversion of the crystal structure-solution process into an optimization problem and have allowed its automation. The SOLVE software has been used to solve MAD data sets with as many as 52 selenium sites in the asymmetric unit. The automated structure-solution process developed is a major step towards the fully automated structure-determination, model-building and refinement procedure which is needed for genomic scale structure determinations.

  10. Active Learning of Group-Structured Environments

    E-Print Network [OSTI]

    Szepesvari, Csaba

    Active Learning of Group-Structured Environments Gabor Bartok, Csaba Szepesvari , Sandra Zilles with their environment. We investigate learning environments that have a group structure. We introduce a learning model an environment from partial information is far from trivial. However, positive results for special subclasses

  11. Cost Codes and the Work Breakdown Structure

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

    1997-03-28T23:59:59.000Z

    The chapter discusses the purpose of the work breakdown structure (WBS) and code of account (COA) cost code system, shows the purpose and fundamental structure of both the WBS and the cost code system, and explains the interface between the two systems.

  12. Drilling subsurface wellbores with cutting structures

    DOE Patents [OSTI]

    Mansure, Arthur James (Alburquerque, NM); Guimerans, Rosalvina Ramona (The Woodlands, TX)

    2010-11-30T23:59:59.000Z

    A system for forming a wellbore includes a drill tubular. A drill bit is coupled to the drill tubular. One or more cutting structures are coupled to the drill tubular above the drill bit. The cutting structures remove at least a portion of formation that extends into the wellbore formed by the drill bit.

  13. Heat pipe with embedded wick structure

    DOE Patents [OSTI]

    Adkins, Douglas Ray (Albuquerque, NM); Shen, David S. (Albuquerque, NM); Tuck, Melanie R. (Albuquerque, NM); Palmer, David W. (Albuquerque, NM); Grafe, V. Gerald (Corrales, NM)

    1999-01-01T23:59:59.000Z

    A heat pipe has an embedded wick structure that maximizes capillary pumping capability. Heat from attached devices such as integrated circuits evaporates working fluid in the heat pipe. The vapor cools and condenses on a heat dissipation surface. The condensate collects in the wick structure, where capillary pumping returns the fluid to high heat areas.

  14. Heat pipe with embedded wick structure

    DOE Patents [OSTI]

    Adkins, Douglas Ray (Albuquerque, NM); Shen, David S. (Albuquerque, NM); Tuck, Melanie R. (Albuquerque, NM); Palmer, David W. (Albuquerque, NM); Grafe, V. Gerald (Corrales, NM)

    1998-01-01T23:59:59.000Z

    A heat pipe has an embedded wick structure that maximizes capillary pumping capability. Heat from attached devices such as integrated circuits evaporates working fluid in the heat pipe. The vapor cools and condenses on a heat dissipation surface. The condensate collects in the wick structure, where capillary pumping returns the fluid to high heat areas.

  15. Short Specialist Review Gene structure prediction

    E-Print Network [OSTI]

    Brendel, Volker

    Short Specialist Review Gene structure prediction in plant genomes Volker Brendel Iowa State) within most genes makes the problem of computational gene structure prediction distinct from (and harder prediction in vertebrates. The second reason is pragmatic. Expressed Sequence Tag (EST) sequencing and whole

  16. Nuclear structure studies with intermediate energy probes

    SciTech Connect (OSTI)

    Lee, T.S.H.

    1993-10-01T23:59:59.000Z

    Nuclear structure studies with pions are reviewed. Results from a recent study of 1 p-shell nuclei using (e,e{prime}), ({pi}, {pi}{prime}), and ({gamma},{pi}) reactions are reported. Future nuclear structure studies with GeV electrons at CEBAF are also briefly discussed.

  17. Increasing Public Involvement in Structural Biology

    E-Print Network [OSTI]

    Baker, David

    --often referred to as citizen science--provides a means of engaging people's skills, rather than just for the public to get actively involved in structural biology research? Citizen science projects can require areas for citizen science as structural problems both are amenable to human spatial-reasoning skills

  18. Cooled snubber structure for turbine blades

    DOE Patents [OSTI]

    Mayer, Clinton A; Campbell, Christian X; Whalley, Andrew; Marra, John J

    2014-04-01T23:59:59.000Z

    A turbine blade assembly in a turbine engine. The turbine blade assembly includes a turbine blade and a first snubber structure. The turbine blade includes an internal cooling passage containing cooling air. The first snubber structure extends outwardly from a sidewall of the turbine blade and includes a hollow interior portion that receives cooling air from the internal cooling passage of the turbine blade.

  19. PROPRITS MAGNTIQUES ET STRUCTURE LECTRONIQUE DU PLUTONIUM

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    699 PROPRITS MAGNTIQUES ET STRUCTURE LECTRONIQUE DU PLUTONIUM J.-M. FOURNIER Centre d obtenus sur la susceptibilit magntique du plutonium-03B1. Nous proposons ensuite un schma de structure de bande que nous utilisons pour expliquer les anomalies d'autres proprits physiques du plutonium

  20. Wind pressure distribution on shell structures

    E-Print Network [OSTI]

    Yancey, Kenneth Earl, Jr

    1963-01-01T23:59:59.000Z

    One of the most important loads that an architect or engineer is concerned with in the structural design of buildings is wind pressure, and it is one of the most difficult structural loads to estimate. The necessity of making a close estimate...

  1. Study Of Structural Control In Coupled Buildings

    E-Print Network [OSTI]

    Spencer Jr., B.F.

    Metropolitana Azcapotzalco, Mexico L.B. Ugarte Proyecto " Torres Tres Carabelas ", Bolivia B.F. Spencer (earthquake and wind). In a conventional structure the energy is absorbed by the inelastic deformation the input from the ground to the structure. Energy dissipation devices are elements that act like fuses

  2. Nozzle and shroud assembly mounting structure

    DOE Patents [OSTI]

    Faulder, L.J.; Frey, G.A.; Nielsen, E.W.; Ridler, K.J.

    1997-08-05T23:59:59.000Z

    The present nozzle and shroud assembly mounting structure configuration increases component life and reduces maintenance by reducing internal stress between the mounting structure having a preestablished rate of thermal expansion and the nozzle and shroud assembly having a preestablished rate of thermal expansion being less than that of the mounting structure. The mounting structure includes an outer sealing portion forming a cradling member in which an annular ring member is slidably positioned. The mounting structure further includes an inner mounting portion to which a hooked end of the nozzle and shroud assembly is attached. As the inner mounting portion expands and contracts, the nozzle and shroud assembly slidably moves within the outer sealing portion. 3 figs.

  3. Magnetic structure of Coronal Mass Ejections

    E-Print Network [OSTI]

    Lyutikov, Maxim

    2012-01-01T23:59:59.000Z

    We present several models of the magnetic structure of solar coronal mass ejections (CMEs). First, we model CMEs as expanding force-free magnetic structures. While keeping the internal magnetic field structure of the stationary solutions, expansion leads to complicated internal velocities and rotation, while the field structures remain force-free. Second, expansion of a CME can drive resistive dissipation within the CME changing the ionization states of different ions. We fit in situ measurements of ion charge states to the resistive spheromak solutions. Finally, we consider magnetic field structures of fully confined stable magnetic clouds containing both toroidal and poloidal magnetic fields and having no surface current sheets. Expansion of such clouds may lead to sudden onset of reconnection events.

  4. Nozzle and shroud assembly mounting structure

    DOE Patents [OSTI]

    Faulder, Leslie J. (San Diego, CA); Frey, deceased, Gary A. (late of Seattle, WA); Nielsen, Engward W. (El Cajon, CA); Ridler, Kenneth J. (San Diego, CA)

    1997-01-01T23:59:59.000Z

    The present nozzle and shroud assembly mounting structure configuration increases component life and reduces maintenance by reducing internal stress between the mounting structure having a preestablished rate of thermal expansion and the nozzle and shroud assembly having a preestablished rate of thermal expansion being less than that of the mounting structure. The mounting structure includes an outer sealing portion forming a cradling member in which an annular ring member is slidably positioned. The mounting structure further includes an inner mounting portion to which a hooked end of the nozzle and shroud assembly is attached. As the inner mounting portion expands and contracts, the nozzle and shroud assembly slidably moves within the outer sealing portion.

  5. ASCE Specialty Conference on Probabilistic Mechanics and Structural Reliability ESTIMATING STRUCTURAL RELIABILITY UNDER HURRICANE WIND HAZARD

    E-Print Network [OSTI]

    Balaji, Rajagopalan

    STRUCTURAL RELIABILITY UNDER HURRICANE WIND HAZARD: APPLICATIONS TO WOOD STRUCTURES Balaji Rajagopalan.frangopol@colorado.edu Abstract A stochastic nonparametric framework to estimate structural reliability under hurricane wind Natural hazards in general and hurricanes in particular, lead to loss of life and tremendous property

  6. www.cesos.ntnu.no Author Centre for Ships and Ocean Structures Stationkeeping of moored structures

    E-Print Network [OSTI]

    Nrvg, Kjetil

    structures in drifting ice Li Zhou May 28th, 2013 #12;2 www.cesos.ntnu.no Author Centre for Ships and Ocean Structures Background Numerical model Ice model test Validation Extension: heading control Conclusions of stationkeeping in ice: Dynamic global ice loads Response of floating structures Local ice loads

  7. Protein NMR Structures Refined with Rosetta Have Higher Accuracy Relative to Corresponding Xray Crystal Structures

    E-Print Network [OSTI]

    Baker, David

    refinement of protein NMR structures was also compared with restrained CS-Rosetta calculations. For proteins spectroscopy (NMR). While X-ray crystal structures are derived from electron density data and are often dynamics and has the advantage of not requiring crystallization. Solution NMR structure determination

  8. Super secondary structure (Motif) Secondary structures often group together to form a specific geometric

    E-Print Network [OSTI]

    Park, Sheldon

    , 5 bind Ca++ #12;8 6. Coiled coils are two helices wound around either other in a super coil Found1 Super secondary structure (Motif) Secondary structures often group together to form a specific, these are referred to as super secondary structures Simple motifs can combine to form more complex motifs Recognizing

  9. CSASC L. Csirmaz: Secret sharing on infinite structures 1 / 29 Secret Sharing on Infinite Structures

    E-Print Network [OSTI]

    Csirmaz, Lszl

    CSASC L. Csirmaz: Secret sharing on infinite structures 1 / 29 Secret Sharing on Infinite: Secret sharing on infinite structures 2 / 29 Threshold scheme a case study Contents 1 Threshold scheme, graphs, and graphs #12;CSASC L. Csirmaz: Secret sharing on infinite structures 3 / 29 Threshold scheme

  10. The Structure of Cholesterol in Lipid Rafts

    E-Print Network [OSTI]

    Laura Toppozini; Sebastian Meinhardt; Clare L. Armstrong; Zahra Yamani; Norbert Kucerka; Friederike Schmid; Maikel C. Rheinstaedter

    2014-12-16T23:59:59.000Z

    Rafts, or functional domains, are transient nano- or mesoscopic structures in the plasma membrane and are thought to be essential for many cellular processes such as signal transduction, adhesion, trafficking and lipid/protein sorting. Observations of these membrane heterogeneities have proven challenging, as they are thought to be both small and short-lived. With a combination of coarse-grained molecular dynamics simulations and neutron diffraction using deuterium labeled cholesterol molecules we observe raft-like structures and determine the ordering of the cholesterol molecules in binary cholesterol-containing lipid membranes. From coarse-grained computer simulations, heterogenous membranes structures were observed and characterized as small, ordered domains. Neutron diffraction was used to study the lateral structure of the cholesterol molecules. We find pairs of strongly bound cholesterol molecules in the liquid-disordered phase, in accordance with the umbrella model. Bragg peaks corresponding to ordering of the cholesterol molecules in the raft-like structures were observed and indexed by two different structures: a monoclinic structure of ordered cholesterol pairs of alternating direction in equilibrium with cholesterol plaques, i.e., triclinic cholesterol bilayers.

  11. Structure, chemistry, and properties of mineral nanoparticles

    SciTech Connect (OSTI)

    Waychunas, G.A.; Zhang, H.; Gilbert, B.

    2008-12-02T23:59:59.000Z

    Nanoparticle properties can depart markedly from their bulk analog materials, including large differences in chemical reactivity, molecular and electronic structure, and mechanical behavior. The greatest changes are expected at the smallest sizes, e.g. 10 nm and below, where surface effects are expected to dominate bonding, shape and energy considerations. The precise chemistry at nanoparticle interfaces can have a profound effect on structure, phase transformations, strain, and reactivity. Certain phases may exist only as nanoparticles, requiring transformations in chemistry, stoichiometry and structure with evolution to larger sizes. In general, mineralogical nanoparticles have been little studied.

  12. Process for making structure for a MCFC

    DOE Patents [OSTI]

    Pasco, Wayne D. (Scotia, NY); Arendt, Ronald H. (Schenectady, NY)

    1986-01-01T23:59:59.000Z

    A process of making a porous carbonate-containing structure for use in a molten carbonate fuel cell, wherein a suitable porous structure is prepared having disposed therein a metal salt selected from the alkali metals and the alkaline earth metals or mixtures thereof with at least a portion of the salt being a monobasic organic acid salt. The monobasic acid salt is converted to the carbonate in situ by heating in the presence of oxygen. Both electrode and electrolyte structures can be prepared. Formic acid is preferred.

  13. Data mining for structure type prediction

    E-Print Network [OSTI]

    Tibbetts, Kevin (Kevin Joseph)

    2004-01-01T23:59:59.000Z

    Determining the stable structure types of an alloy is critical to determining many properties of that material. This can be done through experiment or computation. Both methods can be expensive and time consuming. Computational ...

  14. Antarctic Glossopterids: Clarifying and Comparing Reproductive Structures

    E-Print Network [OSTI]

    Ryberg, Patricia Elizabeth

    2009-08-20T23:59:59.000Z

    Glossopterid reproductive structures, both impressions and permineralizations, have been known from Antarctica for decades, but little detailed work has been done on them to date. Impression fossils from the Central ...

  15. On the Fractal Structure of the Universe

    E-Print Network [OSTI]

    P V Grujic; V D Pankovic

    2009-07-13T23:59:59.000Z

    Despite the observational evidence that the Universe appears hierarchically structured up to a distance of at least 30 Mpc/h (and possibly up to 100 Mpc/h), the fractal paradigm has not yet been recognized by the majority of cosmologists today. In this work we provide a brief overview of the recent observational and theoretical advances relevant to the question of the global cosmic structure and present some simple calculations which indicate how the hierarchical structure may pass over to the homogeneous Universe at very large scale. We show that the fractal structure may be derived from the moderately nonuniform matter distribution. We address a number of epistemological questions relevant to a general outlook of the Cosmos at large too.

  16. Webinar: Evaluating Roof Structures for Solar PV

    Broader source: Energy.gov [DOE]

    This webinar provides an overview of Connecticut's Structural Review Worksheet for Residential Rooftop Solar PV Systems. The webinar explains how the worksheet should be used and common concerns with wind and dead loads for rooftop solar PV.

  17. Ordered dust structures in a glow discharge

    SciTech Connect (OSTI)

    Karasev, V. Yu., E-mail: plasmadust@yandex.ru; Ivanov, A. Yu.; Dzlieva, E. S.; Eikhval'd, A. I. [St. Petersburg State University, Institute of Physics (Russian Federation)

    2008-02-15T23:59:59.000Z

    Highly ordered three-dimensional dust structures are created in a striated glow discharge, and their horizontal cross-sectional images are analyzed. Calculated correlation functions, local correlation parameters, and corresponding approximations are used to classify the state of a structure according to the Kosterlitz-Thouless-Halperin-Nelson-Young (KTHNY) two-dimensional melting theory and a phenomenological approach. An orientational map based on an orientational parameter is proposed to expose domains in a cross section of a structure. It is shown that a plasma crystal is a polycrystal consisting of hexagonal domains (crystallites). Thermophoretic forces are used to create corners of various angles in the perimeter of the structure. Transition between hexagonal and square cell shapes is observed.

  18. Combustion fume structure and dynamics. Final report

    SciTech Connect (OSTI)

    Flagan, R.C.

    1995-06-29T23:59:59.000Z

    An investigation of the fundamental physical processes that govern the structures of fume particles that are produced from the vapor phase in a wide range of high temperature systems has been conducted. The key objective of this study has been to develop models of the evolution of fine particles of refractory materials that are produced from the vapor phase, with particular emphasis on those processes that govern the evolution of ash fumes produced from volatilized mineral matter during coal combustion. To accomplish this goal, the study has included investigations of a number of fundamental aspects of pyrogenous fumes: Structural characterization of agglomerate particles in terms of fractal structure parameters; the relationship between the structures of agglomerate particles and the aerodynamic drag forces they experience; coagulation kinetics of fractal-like particles; sintering of aerosol agglomerates past the early stage of neck formation and incorporating the simultaneous influences of several transport mechanisms.

  19. EVENT CLOUDS : lighter than air architectural structures

    E-Print Network [OSTI]

    Peydro Duclos, Ignacio

    2014-01-01T23:59:59.000Z

    EVENT CLOUD is a versatile covering system that allows events to happen independently to weather conditions. It consists of a lighter than air pneumatic structure, filled either with helium or hot air, that covers spaces ...

  20. Term Structure Dynamics with Macroeconomic Factors

    E-Print Network [OSTI]

    Park, Ha-Il

    2011-02-22T23:59:59.000Z

    Affine term structure models (ATSMs) are known to have a trade-off in predicting future Treasury yields and fitting the time-varying volatility of interest rates. First, I empirically study the role of macroeconomic variables ...

  1. Sandia National Laboratories: Structural and Mechanical Adaptive...

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

    closer look at the flaps on one blade. Actively controlling the aerodynamic loads on a wind-turbine rotor could benefit the entire turbine system significantly. The Structural and...

  2. Use of sensors in monitoring civil structures

    E-Print Network [OSTI]

    Daher, Bassam William, 1979-

    2004-01-01T23:59:59.000Z

    This thesis surveys the use of sensors and sensor networks in monitoring civil structures, with particular emphasis on the monitoring of bridges and highways using fiber optic sensors. Following a brief review of the most ...

  3. Structural systems and conceptual design of cantilevers

    E-Print Network [OSTI]

    Han, Lingxiao, M. Eng. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    Cantilevers are a popular way to express form and create unique feature spaces. From a design perspective, cantilevers are amazing feats for the built environment, and structurally, present many opportunities. However, ...

  4. Structures in high-energy fusion data

    E-Print Network [OSTI]

    H. Esbensen

    2012-06-05T23:59:59.000Z

    Structures observed in heavy-ion fusion cross sections at energies above the Coulomb barrier are interpreted as caused by the penetration of centrifugal barriers that are well-separated in energy. The structures are most pronounced in the fusion of lighter, symmetric systems, where the separation in energy between successive angular momentum barriers is relatively large. It is shown that the structures or peaks can be revealed by plotting the first derivative of the energy weighted cross section. It is also shown how an orbital angular momentum can be assign to the observed peaks by comparing to coupled-channels calculations. This is illustrated by analyzing high-energy fusion data for $^{12}$C+$^{16}$O and $^{16}$O+$^{16}$O, and the possibility of observing similar structures in the fusion of heavier systems is discussed.

  5. Constant field gradient planar coupled cavity structure

    DOE Patents [OSTI]

    Kang, Y.W.; Kustom, R.L.

    1999-07-27T23:59:59.000Z

    A cavity structure is disclosed having at least two opposing planar housing members spaced apart to accommodate the passage of a particle beam through the structure between the members. Each of the housing members have a plurality of serially aligned hollows defined therein, and also passages, formed in the members, which interconnect serially adjacent hollows to provide communication between the hollows. The opposing planar housing members are spaced and aligned such that the hollows in one member cooperate with corresponding hollows in the other member to form a plurality of resonant cavities aligned along the particle beam within the cavity structure. To facilitate the obtaining of a constant field gradient within the cavity structure, the passages are configured so as to be incrementally narrower in the direction of travel of the particle beam. In addition, the spacing distance between the opposing housing members is configured to be incrementally smaller in the direction of travel of the beam. 16 figs.

  6. Structural Complexity of a Composite Amyloid Fibril

    E-Print Network [OSTI]

    Lewandowski, Jozef R.

    The molecular structure of amyloid fibrils and the mechanism of their formation are of substantial medical and biological importance, but present an ongoing experimental and computational challenge. An early high-resolution ...

  7. Degradation of Structural Alloys Under Thermal Insulation

    E-Print Network [OSTI]

    McIntyre, D. R.

    1984-01-01T23:59:59.000Z

    Wet thermal insulation may actively degrade steel and stainless steel structures by general corrosion or stress-corrosion cracking. Two different mechanisms of water ingress into insulation are discussed; flooding from external sources...

  8. Structured Prediction via the Extragradient Computer Science

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    -margin estima- tion of structured models, including an important class of Markov net- works and combinatorial The scope of discriminative learning methods has been expanding to encompass prediction tasks

  9. Structure glass technology : systems and applications

    E-Print Network [OSTI]

    Leitch, Katherine K. (Katherine Kristen)

    2005-01-01T23:59:59.000Z

    Glass cannot compete with steel in terms of strength or durability, but it is the only structural material that offers the highly sought after qualities of translucency and transparency. The use of glass has evolved from ...

  10. Synthesizing data-structure manipulations from storyboards

    E-Print Network [OSTI]

    Singh, Rishabh

    We present the Storyboard Programming framework, a new synthesis system designed to help programmers write imperative low-level data-structure manipulations. The goal of this system is to bridge the gap between the ...

  11. NUCLEAR STRUCTURE AND HEAVY-ION FUSION

    E-Print Network [OSTI]

    Stokstad, R.G.

    2010-01-01T23:59:59.000Z

    Nuclear Structure and Heavy-Ton Fusion* A series of lecturesthe cross section for fusion in the experiments consideredEffects g in III. Subharrier Fusion Cross Sections for Light

  12. Structure-Infesting Wood-Boring Beetles

    E-Print Network [OSTI]

    Jackman, John A.

    2006-03-28T23:59:59.000Z

    Several kinds of beetles damage stored wood, structural timbers and other wood products. This publication explains how to detect, identify, prevent and control powderpost beetle, old house borer and others....

  13. Suitability of salvaged timber in structural design

    E-Print Network [OSTI]

    Davis, James Brandon

    2012-01-01T23:59:59.000Z

    Increased demand for timber construction in the United States has placed a strain on the American timber reserve. At the same time, the annual demolition of thousands of buildings and wood structures results in thousands ...

  14. Multiscale analysis of nanocomposite and nanofibrous structures

    E-Print Network [OSTI]

    Unnikrishnan, Vinu Unnithan

    2009-05-15T23:59:59.000Z

    higher-order finite element methods with AEH. Various nanocomposite and nanofibrous structures are analyzed using this formulation. In summary, in this dissertation the mechanical characteristics of nanotube based composite systems and polymeric...

  15. P-Glycoprotein Structure and Chemotherapy Resistance

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

    The protein, called P-glycoprotein, or P-gp for short, is one of the main reasons cancer cells are resistant to chemotherapy drugs. Understanding its structure may help...

  16. Bussing Structure In An Electrochemical Cell

    DOE Patents [OSTI]

    Romero, Antonio L. (Parkton, MD)

    2001-06-12T23:59:59.000Z

    A bussing structure for bussing current within an electrochemical cell. The bussing structure includes a first plate and a second plate, each having a central aperture therein. Current collection tabs, extending from an electrode stack in the electrochemical cell, extend through the central aperture in the first plate, and are then sandwiched between the first plate and second plate. The second plate is then connected to a terminal on the outside of the case of the electrochemical cell. Each of the first and second plates includes a second aperture which is positioned beneath a safety vent in the case of the electrochemical cell to promote turbulent flow of gasses through the vent upon its opening. The second plate also includes protrusions for spacing the bussing structure from the case, as well as plateaus for connecting the bussing structure to the terminal on the case of the electrochemical cell.

  17. The behaviour of concrete structures in fire

    E-Print Network [OSTI]

    Fletcher, Ian A; Welch, Stephen; Torero, Jose L; Carvel, Ricky O; Usmani, Asif

    2007-03-29T23:59:59.000Z

    The nature of concrete-based structures means that they generally perform very well in fire. However, concrete is a complex material and its properties can change dramatically when exposed to high temperatures. This paper provides a state...

  18. Functional Facilities Management Energy Management Structure

    E-Print Network [OSTI]

    Gulliver, Robert

    Functional Facilities Management Energy Management Structure Jerome Malmquist Director Erick Van Controls Systems Jeff Davis Assistant Director, Facilities Engineering & Energy Efficiency Gene Husted Principal Engineer / Commissioning Emily Robin-Abbott St. Paul Energy Engineer & Technicians Supervisor Dan

  19. New STFC senior management structure JOHN WOMERSLEY

    E-Print Network [OSTI]

    New STFC senior management structure JOHN WOMERSLEY Chief Executive JANET SEED Acting Executive External Innov. Public Engagement Education and Training ING, JAC ANDREW TAYLOR Executive Director Financial Management Governance TIM BESTWICK Executive Director, Business and Innovation Business

  20. Intriguing DNA Editor Has a Structural Trigger

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

    Intriguing DNA Editor Has a Structural Trigger Print A powerful new tool for genome editing and gene regulation has emerged in the form of a family of enzymes known as Cas9. Cas9...

  1. Galactic Rotation and Large Scale Structures

    E-Print Network [OSTI]

    B. G. Sidharth

    1999-04-05T23:59:59.000Z

    On the basis of a recent cosmological model, the puzzle of galactic rotational velocities at their edges is explained without invoking dark matter. A rationale for the existence of structures like galaxies and superclusters is also obtained.

  2. Structure and Interpretation of Computer Programs

    E-Print Network [OSTI]

    Abelson, Harold

    1983-07-01T23:59:59.000Z

    "The Structure and Interpretation of Computer Programs" is the entry-level subject in Computer Science at the Massachusetts Institute of Technology. It is required of all students at MIT who major in Electrical ...

  3. Fire performance of gable frame structures

    E-Print Network [OSTI]

    Qian, Congyi

    2013-01-01T23:59:59.000Z

    Fire protection engineering and structural engineering are two relevant but separated fields of study. Many experiments conducted by fire protection engineers are under certain ideal boundary conditions, which may not be ...

  4. The structure of many-body entanglement

    E-Print Network [OSTI]

    Swingle, Brian Gordon

    2011-01-01T23:59:59.000Z

    In this thesis we discuss the general spatial structure of quantum entanglement in local many-body systems. A central theme is the organizing power of the renormalization group for thinking about many-body entanglement. ...

  5. Bacterial Community Structure in Geographically Distributed Biological

    E-Print Network [OSTI]

    Alvarez-Cohen, Lisa

    Bacterial Community Structure in Geographically Distributed Biological Wastewater Treatment of the microbial communities within biological wastewater treatment reactors is incomplete due to limitations microbial community composition in five biological wastewater treatment reactors in China and the United

  6. Degradation of Structural Alloys Under Thermal Insulation

    E-Print Network [OSTI]

    McIntyre, D. R.

    1984-01-01T23:59:59.000Z

    Wet thermal insulation may actively degrade steel and stainless steel structures by general corrosion or stress-corrosion cracking. Two different mechanisms of water ingress into insulation are discussed; flooding from external sources...

  7. Global Optimization and Protein Structure Prediction

    E-Print Network [OSTI]

    Neumaier, Arnold

    The protein folding problem, i.e., the problem of how to predict the folded native, tertiary structure of the static protein folding problem only, ignoring the possible pathways of folding. The talk will have

  8. Fe/Au Multilayers: Structure and Magnetoresistance

    SciTech Connect (OSTI)

    Singh, Surendra; Basu, Saibal; Bhattacharya, D. [Solid State Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India); Prajapat, C. L. [Technical Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India); Gupta, M. [UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452 017 (India)

    2011-07-15T23:59:59.000Z

    We have measured the magnetoresistance (MR) in two sets of Fe/Au multilayers, with varying (1) Fe layer thickness, t{sub Fe} = 3-10 nm, and (2) Au layer thickness t{sub Au} = 5-15 nm, grown on Si substrates by sputtering. The multilayer interface structure and magnetic properties were studied by polarized neutron reflectometry (PNR). The study was undertaken to understand the correlation between structure of these multilayers and their magneto-transport properties.

  9. Outsourcing the Design of Structural Building Components

    E-Print Network [OSTI]

    Swearingin, Adam V.

    2008-05-16T23:59:59.000Z

    component design work stateside. vi 1 Introduction The outsourcing of structural building component design has recently become available to component manufacturers in the United States. These manufacturers of metal plate connected (MPC) wood roof... of the effectiveness of outsourcing as a means of fulfilling the design requirements of MPC wood trusses. Although 1 this report does not evaluate other structural building components (i.e., i- joists, engineered wood beams and wall panels), the analysis provided...

  10. A computer model to compare greenhouse structures

    E-Print Network [OSTI]

    Chiou, Jiun-Shian

    1989-01-01T23:59:59.000Z

    ). Woven polypropylene ground cover 0. 00068 (4). Sand (5). Others Structure (1). Connected even span house. material wood alone wood /w iron iron alone steel & alum. alum. alone Price (sq. ft. ) (2). Barrel vault house. material wood alone... wood /w iron iron alone steel & alum. alum. alone 1. 16 (3). Saran covered structure house material 26 wood alone wood /w iron iron alone steel & alum. alum. alone (4). Lath house. material wood alone Covering system (1). Polyethylene...

  11. Buffer layer for thin film structures

    DOE Patents [OSTI]

    Foltyn, Stephen R.; Jia, Quanxi; Arendt, Paul N.; Wang, Haiyan

    2010-06-15T23:59:59.000Z

    A composite structure including a base substrate and a layer of a mixture of strontium titanate and strontium ruthenate is provided. A superconducting article can include a composite structure including an outermost layer of magnesium oxide, a buffer layer of strontium titanate or a mixture of strontium titanate and strontium ruthenate and a top-layer of a superconducting material such as YBCO upon the buffer layer.

  12. Buffer layer for thin film structures

    DOE Patents [OSTI]

    Foltyn, Stephen R.; Jia, Quanxi; Arendt, Paul N.; Wang, Haiyan

    2006-10-31T23:59:59.000Z

    A composite structure including a base substrate and a layer of a mixture of strontium titanate and strontium ruthenate is provided. A superconducting article can include a composite structure including an outermost layer of magnesium oxide, a buffer layer of strontium titanate or a mixture of strontium titanate and strontium ruthenate and a top-layer of a superconducting material such as YBCO upon the buffer layer.

  13. Hyperfine structure and hyperfine anomaly in Pb

    E-Print Network [OSTI]

    J. R. Persson

    2014-07-11T23:59:59.000Z

    The hyperfine structure in the 6p2-configuration in lead has been analysed and the results is compared with calculations. The hyperfine anomaly and improved values of the nuclear magnetic moment for four lead isotopes is obtained, using the results from the analysis. The results open up for new measurements of the hyperfine structure in unstable lead isotopes, in order to extract information of the hyperfine anomaly and distribution of magnetisation in the nucleus.

  14. Process development for a field emission structure

    E-Print Network [OSTI]

    Legg, James Derek

    1990-01-01T23:59:59.000Z

    structures. Field emission diode. Cutaway view of a fabricated field emission structure, Image reversal photolithography process steps. Cathode etch progression. Dashed lines represent shape of cath- ode with increasing etch duration. 12 19 23 SEM... is due to breaking the substrate for profile view. 23 Effect of etch duration on average silicon etch rates in a CFi-Oz plasma. 50 FIGURE Page 24 Effect of etch rate variations on cathode geometry for sn B minute CFq-Oq etch. 52 25 Ef...

  15. A fluorophosphate-based inverse Keggin structure

    SciTech Connect (OSTI)

    Fielden, John; Quasdorf, Kyle; Cronin, Leroy; Kogerler, Paul

    2012-07-17T23:59:59.000Z

    An unusual PFO(3)(2-)-templated "inverse Keggin" polyanion, [Mo(12)O(46)(PF)(4)](4-), has been isolated from the degradation reaction of an {Mo(132)}-type Keplerate to [PMo(12)O(40)](3-) by [Cu(MeCN)(4)](PF(6)) in acetonitrile. (31)P-NMR studies suggest a structure-directing role for [Cu(MeCN)(4)](+) in the formation of the highly unusual all-inorganic inverse Keggin structure.

  16. FRACTURE FAILURE CRITERIA OF SOFC PEN STRUCTURE

    SciTech Connect (OSTI)

    Liu, Wenning N.; Sun, Xin; Khaleel, Mohammad A.; Qu, Jianmin

    2007-04-30T23:59:59.000Z

    Thermal stresses and warpage of the PEN are unavoidable due to the temperature changes from the stress-free sintering temperature to room temperature and mismatch of the coefficients of thermal expansion (CTE) of various layers in the PEN structures of solid oxide fuel cells (SOFC) during the PEN manufacturing process. In the meantime, additional mechanical stresses will also be created by mechanical flattening during the stack assembly process. The porous nature of anode and cathode in the PEN structures determines presence of the initial flaws and crack on the interfaces of anode/electrolyte/cathode and in the interior of the materials. The sintering/assembling induced stresses may cause the fracture failure of PEN structure. Therefore, fracture failure criteria for SOFC PEN structures is developed in order to ensure the structural integrity of the cell and stack of SOFC. In this paper, the fracture criteria based on the relationship between the critical energy release rate and critical curvature and maximum displacement of the warped cells caused by the temperature changes as well as mechanical flattening process is established so that possible failure of SOFC PEN structures may be predicted deterministically by the measurement of the curvature and displacement of the warped cells.

  17. MCSNA: Experimental Benchmarking of Pu Electronic Structure

    SciTech Connect (OSTI)

    Tobin, J G

    2007-01-29T23:59:59.000Z

    The objective of this work is to develop and/or apply advanced diagnostics to the understanding of aging of Pu. Advanced characterization techniques such as photoelectron and x-ray absorption spectroscopy will provide fundamental data on the electronic structure of Pu phases. These data are crucial for the validation of the electronic structure methods. The fundamental goal of this project is to narrow the parameter space for the theoretical modeling of Pu aging. The short-term goal is to perform experiments to validate electronic structure calculations of Pu. The long-term goal is to determine the effects of aging upon the electronic structure of Pu. Many of the input parameters for aging models are not directly measurable. These parameters will need to be calculated or estimated. Thus a First Principles-Approach Theory is needed, but it is unclear what terms are important in the Hamiltonian. (H{Psi} = E{Psi}) Therefore, experimental data concerning the 5f electronic structure are needed, to determine which terms in the Hamiltonian are important. The data obtained in this task are crucial for reducing the uncertainty of Task LL-01-developed models and predictions. The data impact the validation of electronic structure methods, the calculation of defect properties, the evaluation of helium diffusion, and the validation of void nucleation models. The importance of these activities increases if difficulties develop with the accelerating aging alloy approach.

  18. Introduction Large scale structure of the Earth Small scale structure Dynamics and evolution Conclusions and outlook Structure, dynamics and evolution of the core-mantle

    E-Print Network [OSTI]

    Introduction Large scale structure of the Earth Small scale structure Dynamics and evolution Conclusions and outlook Structure, dynamics and evolution of the core-mantle boundary region Stphane Labrosse cole normale suprieure de Lyon Institut universitaire de France 14 mai 2012 1 / 63 Structure, dynamics

  19. Oxidized film structure and method of making epitaxial metal oxide structure

    DOE Patents [OSTI]

    Gan, Shupan [Richland, WA; Liang, Yong [Richland, WA

    2003-02-25T23:59:59.000Z

    A stable oxidized structure and an improved method of making such a structure, including an improved method of making an interfacial template for growing a crystalline metal oxide structure, are disclosed. The improved method comprises the steps of providing a substrate with a clean surface and depositing a metal on the surface at a high temperature under a vacuum to form a metal-substrate compound layer on the surface with a thickness of less than one monolayer. The compound layer is then oxidized by exposing the compound layer to essentially oxygen at a low partial pressure and low temperature. The method may further comprise the step of annealing the surface while under a vacuum to further stabilize the oxidized film structure. A crystalline metal oxide structure may be subsequently epitaxially grown by using the oxidized film structure as an interfacial template and depositing on the interfacial template at least one layer of a crystalline metal oxide.

  20. Damage Characterization of the IASC-ASCE Structural Health Monitoring Benchmark Structure by Transfer Function Pole Migration

    E-Print Network [OSTI]

    Lynch, Jerome P.

    Damage Characterization of the IASC-ASCE Structural Health Monitoring Benchmark Structure. The IASC-ASCE structural health monitoring benchmark structure is used in this study to illustrate Health Monitoring Benchmark Structure by Transfer Function Pole Migration, " Proceedings of the 2005 ASCE

  1. BENCHMARK DATA FOR STRUCTURAL HEALTH MONITORING Jyrki Kullaa

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    BENCHMARK DATA FOR STRUCTURAL HEALTH MONITORING Jyrki Kullaa Helsinki Metropolia University analysis is a key function in structural health monitoring (SHM). To develop algorithms for SHM, one needs. KEYWORDS : structural health monitoring, damage detection, environmental or operational effects, moving

  2. Durability testing of an aircraft structural health monitoring system

    E-Print Network [OSTI]

    Chambers, Jeffrey Thomas

    2006-01-01T23:59:59.000Z

    Structural health monitoring (SHM) is an emerging technology leading to systems capable of continuously monitoring structures for damage. Aerospace structures have one of the highest payoffs for SHM systems because damage ...

  3. Panel Organization 1. Panel on Structural Geology & Geoengineering

    E-Print Network [OSTI]

    Appendix A Panel Organization 1. Panel on Structural Geology & Geoengineering Chair: Dr. Clarence R Technical Exchange (open) Panel on Structural Geology & Geoengineering Denver, Colorado Topic: DOE & Performance Analysis and the Panel on Structural Geology & Geoengineering Denver, Colorado Topic: Repository

  4. DAMAGE ASSESSMENT OF COMPOSITE PLATE STRUCTURES WITH UNCERTAINTY

    E-Print Network [OSTI]

    Boyer, Edmond

    DAMAGE ASSESSMENT OF COMPOSITE PLATE STRUCTURES WITH UNCERTAINTY Chandrashekhar M.* , Ranjan Uncertainties associated with a structural model and measured vibration data may lead to unreliable damage that material uncertainties in composite structures cause considerable problem in damage assessment which can

  5. Database Structure and Visualization Software for Microbial Physiology Data INTRODUCTION

    E-Print Network [OSTI]

    Database Structure and Visualization Software for Microbial Physiology Data INTRODUCTION Nicholas includes database input. Other related information can be entered through the website. The relational structure of the database is responsible for associating related data A structured query is sent

  6. NANOCOMPOSITE BASED STRUCTURAL HEALTH MONITORING APPROACHES FOR FIBRE REINFORCED POLYMERS

    E-Print Network [OSTI]

    Boyer, Edmond

    NANOCOMPOSITE BASED STRUCTURAL HEALTH MONITORING APPROACHES FOR FIBRE REINFORCED POLYMERS for Polymers and Composites, Denickestr. 15, 21073 Hamburg, Germany 2 Physics Department, Faculty of Science reinforced polymer (FRP) structures in many industrial branches. Different approaches for Structural Health

  7. Structural Rearrangement in Ebola Virus Protein VP40 Creates...

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

    Structural Rearrangement in Ebola Virus Protein VP40 Creates Multiple Functions Monday, March 31, 2014 Figure 1. Three structures of VP40. Top, a butterfly-shaped dimer structure...

  8. Preface to Structure and Dynamics:1#3

    E-Print Network [OSTI]

    Manlove, Robert F.; Garfias, Robert; Colby, Benjamin N.; Bell, Duran

    2005-01-01T23:59:59.000Z

    As editors of Structure and Dynamics, we now establish adissertation in Structure and Dynamics as a separate numberin this issue of Structure and Dynamics, Camille Roths Co-

  9. Evolutionary dynamics in set structured populations Corina E. Tarnitaa

    E-Print Network [OSTI]

    Nowak, Martin A.

    Evolutionary dynamics in set structured populations Corina E. Tarnitaa , Tibor Antala , Hisashi a powerful method to study dynamical population structure: evolutionary set theory. The individuals of popu- lation structure on evolutionary and ecological dynamics. These approaches include spatial models

  10. Inspection of Nuclear Power Plant Containment Structures

    SciTech Connect (OSTI)

    Graves, H.L.; Naus, D.J.; Norris, W.E.

    1998-12-01T23:59:59.000Z

    Safety-related nuclear power plant (NPP) structures are designed to withstand loadings from a number of low-probability external and interval events, such as earthquakes, tornadoes, and loss-of-coolant accidents. Loadings incurred during normal plant operation therefore generally are not significant enough to cause appreciable degradation. However, these structures are susceptible to aging by various processes depending on the operating environment and service conditions. The effects of these processes may accumulate within these structures over time to cause failure under design conditions, or lead to costly repair. In the late 1980s and early 1990s several occurrences of degradation of NPP structures were discovered at various facilities (e.g., corrosion of pressure boundary components, freeze- thaw damage of concrete, and larger than anticipated loss of prestressing force). Despite these degradation occurrences and a trend for an increasing rate of occurrence, in-service inspection of the safety-related structures continued to be performed in a somewhat cursory manner. Starting in 1991, the U.S. Nuclear Regulatory Commission (USNRC) published the first of several new requirements to help ensure that adequate in-service inspection of these structures is performed. Current regulatory in-service inspection requirements are reviewed and a summary of degradation experience presented. Nondestructive examination techniques commonly used to inspect the NPP steel and concrete structures to identify and quantify the amount of damage present are reviewed. Finally, areas where nondestructive evaluation techniques require development (i.e., inaccessible portions of the containment pressure boundary, and thick heavily reinforced concrete sections are discussed.

  11. STITCHER: Dynamic assembly of likely amyloid and prion beta-structures from secondary structure predictions

    E-Print Network [OSTI]

    Bryan, Allen W.

    The supersecondary structure of amyloids and prions, proteins of intense clinical and biological interest, are difficult to determine by standard experimental or computational means. In addition, significant conformational ...

  12. Tom Brownlow Profile Charles City

    E-Print Network [OSTI]

    Weiblen, George D

    it was generated. It involves porous rock layers under the interlocking concrete pavers, with gaps between

  13. Analysis of Rotational Structure in the High-Resolution Infrared...

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

    Rotational Structure in the High-Resolution Infrared Spectrum and Assignment of Vibrational Fundamentals of Analysis of Rotational Structure in the High-Resolution Infrared...

  14. Parallel Interior Point Solver for Structured Quadratic Programs ...

    E-Print Network [OSTI]

    1910-30-82T23:59:59.000Z

    In this section we give an example of exploitable structures in matrices Q and A. We show how by rearranging linear algebra operations a large structured linear...

  15. Gamma Radiation Effects on Physical, Optical, and Structural...

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

    Gamma Radiation Effects on Physical, Optical, and Structural Properties of Binary As-S glasses. Gamma Radiation Effects on Physical, Optical, and Structural Properties of Binary...

  16. Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames

    E-Print Network [OSTI]

    Bremer, Peer-Timo

    2010-01-01T23:59:59.000Z

    structures in lean premixed hydrogen ?ames. Combustion andStructures in Lean Premixed Hydrogen Flames P. -T. Bremersimulations of lean hydrogen ?ames subject to different

  17. SciTech Connect: Achievements of structural genomics

    Office of Scientific and Technical Information (OSTI)

    Achievements of structural genomics Citation Details In-Document Search Title: Achievements of structural genomics You are accessing a document from the Department of Energy's...

  18. Morphology and Electronic Structure of the Oxide Shell on the...

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

    Electronic Structure of the Oxide Shell on the Surface of Iron Nanoparticles. Morphology and Electronic Structure of the Oxide Shell on the Surface of Iron Nanoparticles. Abstract:...

  19. Morphology and Oxide Shell Structure of Iron Nanoparticles Grown...

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

    Oxide Shell Structure of Iron Nanoparticles Grown by Sputter-Gas-Aggregation. Morphology and Oxide Shell Structure of Iron Nanoparticles Grown by Sputter-Gas-Aggregation. Abstract:...

  20. Bacterial wall structure and implications for interaction with...

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

    Bacterial wall structure and implications for interaction with metal ions and minerals. Bacterial wall structure and implications for interaction with metal ions and minerals....

  1. Structural Controls of the Neal Hot Springs Geothermal System...

    Open Energy Info (EERE)

    Detailed geologic mapping (1:24,000 scale), structural and geochemical analyses, and integration of available geophysical and well-field data were utilized to assess the structural...

  2. Structural optimization of the Ziegler's pendulum: singularities and ...

    E-Print Network [OSTI]

    2010-12-24T23:59:59.000Z

    Dec 24, 2010 ... Structural optimization of non-conservative systems with respect to ... criteria is a research area with important applications in fluid-structure in-.

  3. Wetland plant influence on sediment ecosystem structure and trophic function

    E-Print Network [OSTI]

    Whitcraft, Christine Ren

    2007-01-01T23:59:59.000Z

    nodosa meadow in the Canary Islands: assemblage structure,nodosa meadow in the Canary Islands: assemblage structure,Griffen et al. Bay (Canary Islands) Lagoon (Mexico)

  4. Wetland Plant Influence on Sediment Ecosystem Structure and Trophic Function

    E-Print Network [OSTI]

    Whitcraft, Christine R.

    2007-01-01T23:59:59.000Z

    nodosa meadow in the Canary Islands: assemblage structure,of polychaete species Bay (Canary Islands) Brito et al. 4nodosa meadow in the Canary Islands: assemblage structure,

  5. A Prototype for Graphene Material Simulation: Structures and...

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

    Prototype for Graphene Material Simulation: Structures and Interaction Potentials ofCoronene Dimers. A Prototype for Graphene Material Simulation: Structures and Interaction...

  6. Modification of Defect Structures in Graphene by Electron Irradiation...

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

    Modification of Defect Structures in Graphene by Electron Irradiation: Ab Initio Molecular Dynamics Simulations. Modification of Defect Structures in Graphene by Electron...

  7. Innovative Nano-structuring Routes for Novel ThermoelectricMaterials...

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

    Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking & DOS Engineering Innovative Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking &...

  8. Improving NMR Protein Structure Quality by Rosetta Refinement...

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

    NMR Protein Structure Quality by Rosetta Refinement: A Molecular Replacement Study. Improving NMR Protein Structure Quality by Rosetta Refinement: A Molecular Replacement Study....

  9. Benzene Dimer: Dynamic Structure and Thermodynamics Derived from...

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

    Benzene Dimer: Dynamic Structure and Thermodynamics Derived from On-the-Fly ab initio DFT-D Molecular Dynamic Simulations. Benzene Dimer: Dynamic Structure and Thermodynamics...

  10. Semirealism, Concrete Structures and Theory Change Michel Ghins

    E-Print Network [OSTI]

    Chakravartty, Anjan

    Semirealism, Concrete Structures and Theory Change Michel Ghins Received: 15 November 2012 metaphysics for scientific realism. First, if particulars and laws are concrete structures, namely actual

  11. accretion column structure: Topics by E-print Network

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

    of Alternative Control Structures for an Ideal Two-Product Reactive Distillation Column Engineering Websites Summary: Comparison of Alternative Control Structures for an...

  12. Combining Functional and Structural Genomics to Sample the Essential...

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

    Functional and Structural Genomics to Sample the Essential Burkholderia Structome. Combining Functional and Structural Genomics to Sample the Essential Burkholderia Structome....

  13. The Seattle Structure Genomics Center for Infectious Disease...

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

    The Seattle Structure Genomics Center for Infectious Disease (SSGCID). The Seattle Structure Genomics Center for Infectious Disease (SSGCID). Abstract: The NIAID-funded Seattle...

  14. Deep-UV Raman spectroscopic analysis of structure and dissolution...

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

    of ongoing studies to evaluate the relationships between structural variations in silicate glasses and rates of glass dissolution in aqueous media, molecular structures present...

  15. Dynamic Recovery in Silicate-Apatite Structures Under Irradiation...

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

    Recovery in Silicate-Apatite Structures Under Irradiation and Implications for Long-Term Immobilization of Actinides. Dynamic Recovery in Silicate-Apatite Structures Under...

  16. First-principles calculations of the electronic structure, phase...

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

    calculations of the electronic structure, phase transition and properties of ZrSiO4 polymorphs. First-principles calculations of the electronic structure, phase transition and...

  17. PSMGA Parallel Structured Model Generator for Mathematical ...

    E-Print Network [OSTI]

    2014-10-09T23:59:59.000Z

    elling and generating large scale nested structured problems, including .... statements to describe repeated common structures that build up the full problem.

  18. Property Prediction Tools for Tailored Polymer Composite Structures

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

    Structures Polymer Composite Structures Merit Review: February 27, 2008 Presenter: M.T. Smith (PNNL) Principal Investigators: B.N. Nguyen (PNNL), V. Kunc (ORNL) Pacific Northwest...

  19. Crystalline Open Framework Materials: from Structure to Function

    E-Print Network [OSTI]

    Wang, Le

    2012-01-01T23:59:59.000Z

    100 Pore Structure Assessment on CPF-V-28 Catalyst..103as Fe, In, Co, and Ni. Pore Structure Assessment on CPF-V-28

  20. FERRITE STRUCTURE AND MECHANICAL PROPERTIES OF LOW ALLOY DUPLEX STEELS

    E-Print Network [OSTI]

    Hoel, R.H.

    2013-01-01T23:59:59.000Z

    nucleated precipitates in the ferrite phase of the base + Nbto Scripta Metal1urgica FERRITE STRUCTURE AND MECHANICALUniversity of Califomia. Ferrite Structure and Mechanical

  1. Atomic-Structural Synergy for Catalytic CO Oxidation over Palladium...

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

    Atomic-Structural Synergy for Catalytic CO Oxidation over Palladium-Nickel Nanoalloys. Atomic-Structural Synergy for Catalytic CO Oxidation over Palladium-Nickel Nanoalloys....

  2. OE Updates Organizational Structure to Operate More Strategically...

    Office of Environmental Management (EM)

    Updates Organizational Structure to Operate More Strategically and Efficiently OE Updates Organizational Structure to Operate More Strategically and Efficiently January 28, 2013 -...

  3. Terminal Ligand Influence on the Electronic Structure and Intrinsic...

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

    Terminal Ligand Influence on the Electronic Structure and Intrinsic Redox Properties of the Fe4S42+ Cubane Clusters. Terminal Ligand Influence on the Electronic Structure and...

  4. Non-Linear Seismic Soil Structure Interaction (SSI) Method for...

    Office of Environmental Management (EM)

    Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques Non-Linear Seismic Soil Structure Interaction (SSI) Method for...

  5. Surface and Structural Stabilities of Carbon Additives in High...

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

    Structural Stabilities of Carbon Additives in High Voltage Lithium Ion Batteries. Surface and Structural Stabilities of Carbon Additives in High Voltage Lithium Ion Batteries....

  6. Mesoporous Silicon Sponge as an Anti-Pulverization Structure...

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

    Mesoporous Silicon Sponge as an Anti-Pulverization Structure for High-Performance Lithium-ion Battery Anodes. Mesoporous Silicon Sponge as an Anti-Pulverization Structure for...

  7. Synthesis and Characterization of Structured Si-Carbon Nanocomposite...

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

    Structured Si-Carbon Nanocomposite Anodes and Functional Polymer Binders Synthesis and Characterization of Structured Si-Carbon Nanocomposite Anodes and Functional Polymer Binders...

  8. Structure and Dynamics of Polymer Nanocomposites by Grazing-Incidence...

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

    Structure and Dynamics of Polymer Nanocomposites by Grazing-Incidence X-Ray Techniques (Presentation) Structure and Dynamics of Polymer Nanocomposites by Grazing-Incidence X-Ray...

  9. Topology Optimization of Tensegrity Structures Based on Nonsmooth Mechanics

    E-Print Network [OSTI]

    Kanno, Yoshihiro

    of Tensegrity Structures ACOMEN 2011 · tension + integrity [Fuller 75] [Emmerich], [Snelson] · pin of Tensegrity Structures ACOMEN 2011 · tension + integrity [Fuller 75] [Emmerich], [Snelson] · pin

  10. Effect of Thickness on the Structure, Composition and Properties...

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

    Effect of Thickness on the Structure, Composition and Properties of Titanium Nitride Nano-Coatings. Effect of Thickness on the Structure, Composition and Properties of Titanium...

  11. Water and the changing structure of zeolites | EMSL

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

    and the changing structure of zeolites Water and the changing structure of zeolites Released: March 27, 2015 Atoms crowd and abandon catalyst's internal channel surfaces, changing...

  12. Atomic structure of nitrate-binding protein crucial for photosynthetic...

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

    structure of nitrate-binding protein crucial for photosynthetic productivity. Atomic structure of nitrate-binding protein crucial for photosynthetic productivity. Abstract:...

  13. Theoretical Study of the Structure, Stability and Oxygen Reduction...

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

    Study of the Structure, Stability and Oxygen Reduction Activity ofUltrathin Platinum Nanowires. Theoretical Study of the Structure, Stability and Oxygen Reduction Activity...

  14. Density Functional Study of the Structure, Stability and Oxygen...

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

    Study of the Structure, Stability and Oxygen Reduction Activity of Ultrathin Platinum Nanowires. Density Functional Study of the Structure, Stability and Oxygen Reduction Activity...

  15. Role of Metal Coordination Structures in Enhancement of Electrocatalyt...

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

    Structures in Enhancement of Electrocatalytic Activity of Ternary Nanoalloys for Oxygen Reduction Role of Metal Coordination Structures in Enhancement of Electrocatalytic...

  16. Using X-Ray Computed Tomography in Pore Structure Characterization...

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

    Using X-Ray Computed Tomography in Pore Structure Characterization for a Berea Sandstone: Resolution Effect. Using X-Ray Computed Tomography in Pore Structure Characterization for...

  17. Effect of Mn doping on the structural, morphological, optical...

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

    Mn doping on the structural, morphological, optical and magnetic properties of indium tin oxide films. Effect of Mn doping on the structural, morphological, optical and magnetic...

  18. Structuring Credit Enhancements for Clean Energy Finance Programs...

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

    Structuring Credit Enhancements for Clean Energy Finance Programs (Text Version) Structuring Credit Enhancements for Clean Energy Finance Programs (Text Version) Below is a text...

  19. additional structural genome: Topics by E-print Network

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

    a mitochondrial genome Archibald, John 3 Protein structure prediction and structural genomics CiteSeer Summary: Genome sequencing projects are producing linear amino acid...

  20. accurate structural genome: Topics by E-print Network

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

    door de promotor: unknown authors 8 Protein structure prediction and structural genomics CiteSeer Summary: Genome sequencing projects are producing linear amino acid...

  1. automated protein structure: Topics by E-print Network

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

    functions are not yet prediction on protein structures. 1 Introduction 1.1 Structural Genomics With the sequencing of the human Brutlag, Doug 4 Automated prediction of protein...

  2. Federal and State Structures to Support Financing Utility-Scale...

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

    and State Structures to Support Financing Utility-Scale Solar Projects and the Business Models Designed to Utilize Them Federal and State Structures to Support Financing...

  3. The Impacts of Commercial Electric Utility Rate Structure Elements...

    Office of Environmental Management (EM)

    The Impacts of Commercial Electric Utility Rate Structure Elements on the Economics of Photovoltaic Systems The Impacts of Commercial Electric Utility Rate Structure Elements on...

  4. Trends in template/fragment-free protein structure prediction

    E-Print Network [OSTI]

    Zhou, Yaoqi; Duan, Yong; Yang, Yuedong; Faraggi, Eshel; Lei, Hongxing

    2011-01-01T23:59:59.000Z

    that only real- value prediction allows the sampling ofII: protein structure prediction program for genome-scaleL (2001) Structure prediction meta server. Bioinformatics

  5. BE.442 Molecular Structure of Biological Materials, Fall 2005

    E-Print Network [OSTI]

    Zhang, Shuguang, Dr.

    Basic molecular structural principles of biological materials. Molecular structures of various materials of biological origin, including collagen, silk, bone, protein adhesives, GFP, self-assembling peptides. Molecular ...

  6. Optimization of mesoporous carbon structures for lithium&ndash...

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

    mesoporous carbon structures for lithiumsulfur battery applications. Optimization of mesoporous carbon structures for lithiumsulfur battery applications. Abstract:...

  7. Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide...

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

    Structural vacancies are a source of numerous interesting structural, electronic, and optical properties, and materials scientists often rely them as an important building...

  8. Chitosan Molecular Structure as a Function of N-Acetylation....

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

    Chitosan Molecular Structure as a Function of N-Acetylation. Abstract: Molecular dynamics simulations have been carried out to characterize the structure and solubility of...

  9. SciTech Connect: Structural consequences of hydrogen intercalation...

    Office of Scientific and Technical Information (OSTI)

    Structural consequences of hydrogen intercalation of epitaxial graphene on SiC(0001) Citation Details In-Document Search Title: Structural consequences of hydrogen intercalation of...

  10. Neutron Reflectometry Studies of the Adsorbed Structure of the...

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

    Reflectometry Studies of the Adsorbed Structure of the Amelogenin, LRAP. Neutron Reflectometry Studies of the Adsorbed Structure of the Amelogenin, LRAP. Abstract: Amelogenins make...

  11. Density Functional Theory Studies of the Electronic Structure...

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

    Theory Studies of the Electronic Structure of Solid State Actinide Oxides. Density Functional Theory Studies of the Electronic Structure of Solid State Actinide Oxides. Abstract:...

  12. Comparison of shape reconstruction strategies in a complex flexible structure

    E-Print Network [OSTI]

    Mao, Zhu

    2008-01-01T23:59:59.000Z

    Strategies in a Complex Flexible Structure A ThesisStrategies in a Complex Flexible Structure by Zhu Mao Masterof the large span flexible truss: a simplified neural

  13. Thermal and structural properties of ionic fluids

    E-Print Network [OSTI]

    Hendrik Bartsch; Oliver Dannenmann; Markus Bier

    2015-05-04T23:59:59.000Z

    The electrostatic interaction in ionic fluids is well-known to give rise to a characteristic phase behavior and structure. Sometimes its long range is proposed to single out the electrostatic potential over other interactions with shorter ranges. Here the importance of the range for the phase behavior and the structure of ionic fluids is investigated by means of grandcanonical Monte Carlo simulations of the lattice restricted primitive model (LRPM). The long-ranged electrostatic interaction is compared to various types of short-ranged potentials obtained by sharp and/or smooth cut-off schemes. Sharply cut off electrostatic potentials are found to lead to a strong dependence of the phase behavior and the structure on the cut-off radius. However, when combined with a suitable additional smooth cut-off, the short-ranged LRPM is found to exhibit quantitatively the same phase behavior and structure as the conventional long-ranged LRPM. Moreover, the Stillinger-Lovett perfect screening property, which is well-known to be generated by the long-ranged electrostatic potential, is also fulfilled by short-ranged LRPMs with smooth cut-offs. By showing that the characteristic phase behavior and structure of ionic fluids can also be found in systems with short-ranged potentials, one can conclude that the decisive property of the electrostatic potential in ionic fluids is not the long range but rather the valency dependence.

  14. Predicting Polymeric Crystal Structures by Evolutionary Algorithms

    E-Print Network [OSTI]

    Qiang Zhu; Vinit Sharma; Artem R Oganov; Rampi Ramprasad

    2014-06-05T23:59:59.000Z

    The recently developed evolutionary algorithm USPEX proved to be a tool that enables accurate and reliable prediction of structures for a given chemical composition. Here we extend this method to predict the crystal structure of polymers by performing constrained evolutionary search, where each monomeric unit is treated as one or several building blocks with fixed connectivity. This greatly reduces the search space and allows the initial structure generation with different sequences and packings using these blocks. The new constrained evolutionary algorithm is successfully tested and validated on a diverse range of experimentally known polymers, namely polyethylene (PE), polyacetylene (PA), poly(glycolic acid) (PGA), poly(vinyl chloride) (PVC), poly(oxymethylene) (POM), poly(phenylene oxide) (PPO), and poly (p-phenylene sulfide) (PPS). By fixing the orientation of polymeric chains, this method can be further extended to predict all polymorphs of poly(vinylidene fluoride) (PVDF), and the complex linear polymer crystals, such as nylon-6 and cellulose. The excellent agreement between predicted crystal structures and experimentally known structures assures a major role of this approach in the efficient design of the future polymeric materials.

  15. Galaxy Structural Parameters in Source Extractor

    E-Print Network [OSTI]

    B. W. Holwerda

    2007-10-16T23:59:59.000Z

    Over the last decade, the Concentration, Asymmetry and Smoothness (CAS), as well as the M20 and GINI parameters have become popular to automatically classify distant galaxies in images. Ellipticals, spirals and irregular galaxies all appear to occupy different regions of this parameter space. At the same time, the Source Extractor (SE) program has become the mainstay to produce ob ject catalogs from large image surveys. A logical next step would be to incorporate the structural parameters into the Source Extractor software. There are however several problems that arise: 1) the CAS parameters are fits to the images and Source Extractor eschews fits in the interest of speed, 2) the definition of the structural parameters changed over time. Now that there is a clear and agreed-upon definition of the structural parameters, I am incorporating computed versions in the Source Extractor code (v2.5). The fitted CAS parameters are available for the GOODS-N/S fields and I compare the computed structural parameters to those found by the previous fits. My goal is to expand the source structure information in Source Extractor catalogs in order to improve automatic identification of sources, specifically of distant galaxies. The computed parameters perform reasonably close to the fitted versions but noise appears in faint ob jects due to a lack of information. For a subset of objects, the asymmetry signal is outside the SE boundaries and Smoothness still fails to compute for many ob jects. Type classification based on the SE parameters still lacks resolving power.

  16. Global Study of Nuclear Structure Functions

    E-Print Network [OSTI]

    S. A. Kulagin; R. Petti

    2005-10-22T23:59:59.000Z

    We present the results of a phenomenological study of unpolarized nuclear structure functions for a wide kinematical region of x and Q^2. As a basis of our phenomenology we develop a model which takes into account a number of different nuclear effects including nuclear shadowing, Fermi motion and binding, nuclear pion excess and off-shell correction to bound nucleon structure functions. Within this approach we perform a statistical analysis of available data on the ratio of the nuclear structure functions F_2 for different nuclei in the range from the deuteron to the lead. We express the off-shell effect and the effective scattering amplitude describing nuclear shadowing in terms of few parameters which are common to all nuclei and have a clear physical interpretation. The parameters are then extracted from statistical analysis of data. As a result, we obtain an excellent overall agreement between our calculations and data in the entire kinematical region of x and Q^2. We discuss a number of applications of our model which include the calculation of the deuteron structure functions, nuclear valence and sea quark distributions and nuclear structure functions for neutrino charged-current scattering.

  17. Automated structure solution with the PHENIX suite

    SciTech Connect (OSTI)

    Terwilliger, Thomas C [Los Alamos National Laboratory; Zwart, Peter H [LBNL; Afonine, Pavel V [LBNL; Grosse - Kunstleve, Ralf W [LBNL

    2008-01-01T23:59:59.000Z

    Significant time and effort are often required to solve and complete a macromolecular crystal structure. The development of automated computational methods for the analysis, solution, and completion of crystallographic structures has the potential to produce minimally biased models in a short time without the need for manual intervention. The PHENIX software suite is a highly automated system for macromolecular structure determination that can rapidly arrive at an initial partial model of a structure without significant human intervention, given moderate resolution, and good quality data. This achievement has been made possible by the development of new algorithms for structure determination, maximum-likelihood molecular replacement (PHASER), heavy-atom search (HySS), template- and pattern-based automated model-building (RESOLVE, TEXTAL), automated macromolecular refinement (phenix. refine), and iterative model-building, density modification and refinement that can operate at moderate resolution (RESOLVE, AutoBuild). These algorithms are based on a highly integrated and comprehensive set of crystallographic libraries that have been built and made available to the community. The algorithms are tightly linked and made easily accessible to users through the PHENIX Wizards and the PHENIX GUI.

  18. Automated Structure Solution with the PHENIX Suite

    SciTech Connect (OSTI)

    Zwart, Peter H.; Zwart, Peter H.; Afonine, Pavel; Grosse-Kunstleve, Ralf W.; Hung, Li-Wei; Ioerger, Tom R.; McCoy, A.J.; McKee, Eric; Moriarty, Nigel; Read, Randy J.; Sacchettini, James C.; Sauter, Nicholas K.; Storoni, L.C.; Terwilliger, Tomas C.; Adams, Paul D.

    2008-06-09T23:59:59.000Z

    Significant time and effort are often required to solve and complete a macromolecular crystal structure. The development of automated computational methods for the analysis, solution and completion of crystallographic structures has the potential to produce minimally biased models in a short time without the need for manual intervention. The PHENIX software suite is a highly automated system for macromolecular structure determination that can rapidly arrive at an initial partial model of a structure without significant human intervention, given moderate resolution and good quality data. This achievement has been made possible by the development of new algorithms for structure determination, maximum-likelihood molecular replacement (PHASER), heavy-atom search (HySS), template and pattern-based automated model-building (RESOLVE, TEXTAL), automated macromolecular refinement (phenix.refine), and iterative model-building, density modification and refinement that can operate at moderate resolution (RESOLVE, AutoBuild). These algorithms are based on a highly integrated and comprehensive set of crystallographic libraries that have been built and made available to the community. The algorithms are tightly linked and made easily accessible to users through the PHENIX Wizards and the PHENIX GUI.

  19. Chemical structure and dynamics: Annual report 1993

    SciTech Connect (OSTI)

    Colson, S.D.

    1994-07-01T23:59:59.000Z

    The Chemical Structure and Dynamics program responds to the need for a fundamental, molecular-level understanding of chemistry at the wide variety of environmentally-important interfaces. The research program is built around the established relationship between structure, thermodynamics, and kinetics. This research effort continues to evolve into a program of rigorous studies of fundamental molecular processes in model systems (e.g., well-characterized surfaces, single-component solutions, clusters, and biological molecules), and studies of complex systems found in the environment. Experimental studies of molecular and supramolecular structures and thermodynamics are key to understanding the nature of matter, and lead to direct comparison with computational results. Kinetic and mechanistic measurements, combined with real-time dynamics measurements of atomic and molecular motions during chemical reactions, provide for a molecular-level description of chemical reactions. The anticipated results of this work are the achievement of a quantitative understanding of chemical processes at complex interfaces, the development of new techniques for the detection and measurement of species at such interfaces, and the interpretation and extrapolation of the observations in terms of models of interfacial chemistry. The Chemical Structure and Dynamics research program includes five areas described in detail in this report: Reaction mechanisms at solid interfaces; Solution and solution interfaces; Structure and dynamics of biological systems; Analytical methods development; and atmospheric chemistry. Extended abstracts are presented for 23 studies.

  20. Structure and thermodynamics of surface recognition

    SciTech Connect (OSTI)

    Gupta, G.

    1998-11-01T23:59:59.000Z

    This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Interactions of the surface glycoprotein, gp120, with the receptors of host cells define the pathogenesis of HIV-1, the virus that causes AIDS. gp120 is made of several disulfide-bridged loops--the amino acid sequences of some of these loops are fairly conserved whereas the rest are variable. The third variable (V3) loop has been the target of vaccine design for quite some time since this loop is involved in various steps of viral pathogenesis. However, this loop also happens to be the most variable one. The authors have carried out structural and immunological studies to determine the sequence-structure-antigenicity correlations of the HIV-1 V3 loops. This resulted in the identification of a secondary structure at the tip of the V3 loop that remains invariant in spite of the sequence variation. The authors designed a multi-valent V3-based antigen that presents multiple copies of the same tip element several times in the same structure. During the course of this project, they realized that the protective epitopes of gp120 should be judged in the context of the native structure. Therefore, the authors developed a method to obtain a model of gp120 that is consistent with all the immunology and virology data. This model is useful in choosing or designing gp120 subdomains for vaccine development.