Sample records for multiple scales fred

  1. Fred Loebl

    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) Environmental Assessments (EA)Budget(DANCE) TargetFormsTrouble ShootingFred Loebl

  2. Henry and Fred Learn about Lead

    E-Print Network [OSTI]

    Holsinger, Kent

    Henry and Fred Learn about Lead Joan Bothell Activity book #12;Henry and Fred Learn about Lead the children's storybook Henry and Fred Learn about Lead/Enrique y Federico aprenden sobre el plomo (2003 of this activity book. The Henry and Fred storybook is about keeping children safe from lead poisoning, a serious

  3. Structuring Materials on Multiple Length Scales for Energy Application...

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

    Structuring Materials on Multiple Length Scales for Energy Applications October 25, 2012 at 3pm36-428 Adreas Stein Department of Chemistry, University of Minnesota astein...

  4. A combined isotropic and multiple s-shell anisotropic scaling method for multiple data sets

    E-Print Network [OSTI]

    Takusagawa, Fusao

    1992-01-01T23:59:59.000Z

    by combining an isotropic scaling function, K(s) = A exp (Bs2), and a multiple s-shell anisotropic scaling function, K(x)s = ([Sigma] [Sigma] cijxij)s. This combined scaling function can greatly reduce the systematic differences in intensities among multiple...

  5. Fred Lipschultz | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12 OPAM Revised DOEDepartment ofFossilFred Lipschultz About Us

  6. The Case for Strategic Oscillation Fred Glover

    E-Print Network [OSTI]

    Hao, Jin-Kao

    for Strategic Oscillation Fred Glover OptTek Systems, Inc., 1919 Seventh Street, Boulder, CO 80302 USA glover implications for future research. Manuscript Click here to download Manuscript: ANOR Glover and Jin

  7. Introducing FRED, Enabling Unique Visualization and Manipulation...

    Open Energy Info (EERE)

    Sfederspiel's picture Submitted by Sfederspiel(5) Member 20 May, 2013 - 13:28 FRED Free Energy Data Map OpenEI Tool Visualization The U.S. Department of Energy, the Pacific...

  8. Construction heuristics for the asymmetric TSP Fred Glover

    E-Print Network [OSTI]

    Gutin, Gregory

    Construction heuristics for the asymmetric TSP Fred Glover School of Business, University of Colorado, Boulder CO 80309­0419, USA Fred.Glover@Colorado.EDU Gregory Gutin Department of Mathematical

  9. Anomaly Detection in Multiple Scale for Insider Threat Analysis

    SciTech Connect (OSTI)

    Kim, Yoohwan [ORNL] [ORNL; Sheldon, Frederick T [ORNL] [ORNL; Hively, Lee M [ORNL] [ORNL

    2012-01-01T23:59:59.000Z

    We propose a method to quantify malicious insider activity with statistical and graph-based analysis aided with semantic scoring rules. Different types of personal activities or interactions are monitored to form a set of directed weighted graphs. The semantic scoring rules assign higher scores for the events more significant and suspicious. Then we build personal activity profiles in the form of score tables. Profiles are created in multiple scales where the low level profiles are aggregated toward more stable higherlevel profiles within the subject or object hierarchy. Further, the profiles are created in different time scales such as day, week, or month. During operation, the insider s current activity profile is compared to the historical profiles to produce an anomaly score. For each subject with a high anomaly score, a subgraph of connected subjects is extracted to look for any related score movement. Finally the subjects are ranked by their anomaly scores to help the analysts focus on high-scored subjects. The threat-ranking component supports the interaction between the User Dashboard and the Insider Threat Knowledge Base portal. The portal includes a repository for historical results, i.e., adjudicated cases containing all of the information first presented to the user and including any additional insights to help the analysts. In this paper we show the framework of the proposed system and the operational algorithms.

  10. Integrated Water Management and Modeling at Multiple Spatial Scales David Ezechiel Rosenberg

    E-Print Network [OSTI]

    Lund, Jay R.

    Integrated Water Management and Modeling at Multiple Spatial Scales Abstract Water shortages from actions that minimize costs or maximize benefits across a variety of water shortage conditions, describe interdependencies when adopting multiple actions together. Fourth, list the shortage or water

  11. Analysis of Wind Power and Load Data at Multiple Time Scales

    E-Print Network [OSTI]

    Coughlin, Katie

    2011-01-01T23:59:59.000Z

    29   Appendix A. PJM Windat Multiple Time Scales Appendix A. PJM Wind Data The windpower data for the PJM control area cover the period January

  12. Fred Olsen Renewables Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGermanFife Energy ParkForkedFranklin ElectricFred Olsen

  13. Karhunen-Loeve (PCA) based detection of multiple oscillations in multiple measurement signals from large-scale process plants

    E-Print Network [OSTI]

    Wickerhauser, M. Victor

    large-scale process plants P. F. Odgaard and M. V. Wickerhauser Abstract-- In the perspective of optimizing the control and operation of large scale process plants, it is important to detect and to locate oscillations in the plants. This paper presents a scheme for detecting and localizing multiple oscillations

  14. astronaut fred haise: Topics by E-print Network

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

    can be expanded by imaginative children and adults. Rules to stay lead simple rules to protect himself, Sue, and Fred from lead. Rule 1: Stay away from paint dust and paint...

  15. Bright-White Beetle Scales Optimise Multiple Scattering of Light

    E-Print Network [OSTI]

    Burresi, Matteo; Cortese, Lorenzo; Pattelli, Lorenzo; Kolle, Mathias; Vukusic, Peter; Wiersma, Diederik S.; Steiner, Ullrich; Vignolini, Silvia

    2014-08-15T23:59:59.000Z

    function of the cuticle volume fraction f (see below) and thus also R is f-dependent. The use of diffusion theory for the beetle scales needs some further discussion due to the scale network morphology. Indeed, the dif- fusion equation for light... waves in random media. Phys. Rev. B 49, 3800–3810 (1994). 35. Sapienza, R. et al. Observation of resonant behavior in the energy velocity of diffused light. Phys. Rev. Lett. 99, 233902 (2007). www.nature.com/scientificreports SCIENTIFIC REPORTS | 4...

  16. A Protocol for the Atomic Capture of Multiple Molecules on Large Scale Platforms

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Protocol for the Atomic Capture of Multiple Molecules on Large Scale Platforms Marin Bertier services. Envi- sioned over largely distributed and highly dynamic platforms, expressing this coordination coordination of services. However, the execution of such programs over large scale platforms raises several

  17. Computer Science and Decision Theory Fred S. Roberts 1

    E-Print Network [OSTI]

    Computer Science and Decision Theory Fred S. Roberts 1 DIMACS Center, Rutgers University, Piscataway, NJ 08854 USA froberts@dimacs.rutgers.edu Abstract This paper reviews applications in computer in the social and decision sciences of newer decision-theoretic methods developed with computer science

  18. Data Clustering Using Evidence Accumulation Ana L.N. Fred

    E-Print Network [OSTI]

    Fred, Ana

    Data Clustering Using Evidence Accumulation Ana L.N. Fred Telecommunications Institute Instituto State University, USA jain@cse.msu.edu Abstract We explore the idea of evidence accumulation for com, ultimately imposing hyper-spherical clusters on the data. We explore the idea of evidence accumulation

  19. Experience Curves and Solar PV Fred Heutte, Senior Policy Associate

    E-Print Network [OSTI]

    Experience Curves and Solar PV Fred Heutte, Senior Policy Associate NW Energy Coalition September 3 resources costs as being ranges rather than fixed values. It is evident that the question of future solar PV small percentage of all resources at present, there is a strong sense that once solar PV reaches "grid

  20. Evaluating atmospheric CO2 inversions at multiple scales over a highly inventoried agricultural landscape

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    Evaluating atmospheric CO2 inversions at multiple scales over a highly inventoried agricultural the results to an inventory of CO2 fluxes. Statistics from densely monitored crop production, consisting primarily of corn and soybeans, provided the backbone of a well studied bottom-up inventory flux estimate

  1. MULTIPLE-SCALE DYNAMIC LEACHING OF A MUNICIPAL SOLID WASTE INCINERATION ASH

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 MULTIPLE-SCALE DYNAMIC LEACHING OF A MUNICIPAL SOLID WASTE INCINERATION ASH Waste Management (in source such as municipal solid waste (MSW) incineration ash, requires a knowledge of the so percolating through waste evolve over time, for a given percolation scenario (infiltration rate, waste source

  2. Micro-Geomechanics Across Multiple Strain Scales Matthew R. Kuhn, University of Portland, U.S.A.

    E-Print Network [OSTI]

    Kuhn, Matthew R.

    Micro-Geomechanics Across Multiple Strain Scales Matthew R. Kuhn, University of Portland, U deformation · Sensitive to particle shapes Micro-Geomechanics Across Multiple Strain Scales ­ Cambridge compression of 4000 ovals. Cluster dilations. = 0 = 0.03% = 0.3% = 4% = 55% Micro-Geomechanics Across

  3. Patterns in Functional Structure and Diversity of Stream Fish Assemblages Related to Environmental Factors at Multiple Scales

    E-Print Network [OSTI]

    Pease, Allison Ann

    2011-02-22T23:59:59.000Z

    PATTERNS IN FUNCTIONAL STRUCTURE AND DIVERSITY OF STREAM FISH ASSEMBLAGES RELATED TO ENVIRONMENTAL FACTORS AT MULTIPLE SCALES A Dissertation by ALLISON ANN PEASE Submitted to the Office of Graduate Studies... and Diversity of Stream Fish Assemblages Related to Environmental Factors at Multiple Scales Copyright 2010 Allison Ann Pease PATTERNS IN FUNCTIONAL STRUCTURE AND DIVERSITY OF STREAM FISH ASSEMBLAGES RELATED TO ENVIRONMENTAL...

  4. NEWS RELEASE Sept. 4, 2014 FRED JONES JR. MUSEUM OF ART

    E-Print Network [OSTI]

    Oklahoma, University of

    NEWS RELEASE Sept. 4, 2014 FRED JONES JR. MUSEUM OF ART UNIVERSITY OF OKLAHOMA - NORMAN RANDI GILL hour at the Fred Jones Jr. Museum of Art at the University of Oklahoma. The complimentary weekly concert series begins at noon Sept. 9 in the museum's Sandy Bell Gallery. A cooperative effort between

  5. NEWS RELEASE September 5, 2013 FRED JONES JR. MUSEUM OF ART

    E-Print Network [OSTI]

    Oklahoma, University of

    NEWS RELEASE September 5, 2013 FRED JONES JR. MUSEUM OF ART UNIVERSITY OF OKLAHOMA - NORMAN AMANDA at the Fred Jones Jr. Museum of Art at the University of Oklahoma. The complimentary weekly concert series begins at noon Sept. 10 in the museum's Sandy Bell Gallery. A cooperative effort between the OU School

  6. Fission time-scale in experiments and in multiple initiation model

    SciTech Connect (OSTI)

    Karamian, S. A., E-mail: karamian@nrmail.jinr.ru [Joint Institute for Nuclear Research (Russian Federation)

    2011-12-15T23:59:59.000Z

    Rate of fission for highly-excited nuclei is affected by the viscose character of the systemmotion in deformation coordinates as was reported for very heavy nuclei with Z{sub C} > 90. The long time-scale of fission can be described in a model of 'fission by diffusion' that includes an assumption of the overdamped diabatic motion. The fission-to-spallation ratio at intermediate proton energy could be influenced by the viscosity, as well. Within a novel approach of the present work, the cross examination of the fission probability, time-scales, and pre-fission neutron multiplicities is resulted in the consistent interpretation of a whole set of the observables. Earlier, different aspects could be reproduced in partial simulations without careful coordination.

  7. Geometrical Scaling and the Dependence of the Average Transverse Momentum on the Multiplicity and Energy for the ALICE Experiment

    E-Print Network [OSTI]

    Larry McLerran; Michal Praszalowicz

    2014-12-22T23:59:59.000Z

    We review the recent ALICE data on charged particle multiplicity in p-p collisions, and show that it exhibits Geometrical Scaling (GS) with energy dependence given with characteristic exponent $\\lambda=0.22$. Next, starting from the GS hypothesis and using results of the Color Glass Condensate effective theory, we calculate $$ as a function $N_{\\rm ch}$ including dependence on the scattering energy $W$. We show that $$ both in p-p and p-Pb collisions scales in terms of scaling variable $(W/W_{0})^{\\lambda/(2+\\lambda)}% \\sqrt{N_{\\mathrm{ch}}/S_{\\bot}}$ where $S_{\\bot}$ is multiplicity dependent interaction area in the transverse plane. Furthermore, we discuss how the behavior of the interaction radius $R$ at large multiplicities affects the mean $p_{\\mathrm{T}}$ dependence on $N_{\\rm ch}$, and make a prediction that $$ at high multiplicity should reach an energy independent limit.

  8. Multiple Time-Scale Behaviour and Network Dynamics in Liquid Methanol

    E-Print Network [OSTI]

    Ruchi Sharma; Charusita Chakravarty

    2008-11-11T23:59:59.000Z

    Canonical ensemble molecular dynamics simulations of liquid methanol, modeled using a rigid-body, pair-additive potential, are used to compute static distributions and temporal correlations of tagged molecule potential energies as a means of characterising the liquid state dynamics. The static distribution of tagged molecule potential energies shows a clear multimodal structure with three distinct peaks, similar to those observed previously in water and liquid silica. The multimodality is shown to originate from electrostatic effects, but not from local, hydrogen-bond interactions. An interesting outcome of this study is the remarkable similarity in the tagged potential energy power spectra of methanol, water and silica, despite the differences in the underlying interactions and the dimensionality of the network. All three liquids show a distinct multiple time scale (MTS) regime with a 1/f dependence with a clear positive correlation between the scaling exponent alpha and the diffusivity. The low-frequency limit of the MTS regime is determined by the frequency of crossover to white noise behaviour which occurs at approximately 0.1 cm{-1} in the case of methanol under standard temperature and pressure conditions. The power spectral regime above 200 cm{-1} in all three systems is dominated by resonances due to localised vibrations, such as librations. The correlation between $\\alpha$ and the diffusivity in all three liquids appears to be related to the strength of the coupling between the localised motions and the larger length/time-scale network reorganizations. Thus the time scales associated with network reorganization dynamics appear to be qualitatively similar in these systems, despite the fact that water and silica both display diffusional anomalies but methanol does not.

  9. Simulations on the Nonlinear Mode Coupling in Multiple-scale Drift-type Turbulence with Coherent Flow Structures

    E-Print Network [OSTI]

    Lin, Zhihong

    coupling, the same back-action process can deform the spectral distribution in inertia range from the powerTH/2-31 Simulations on the Nonlinear Mode Coupling in Multiple-scale Drift-type Turbulence@energy.kyoto-u.ac.jp Abstract: The dynamics of secondary, anisotropic coherent structures behaving as a stationary wave

  10. Plume dynamics and shielding characteristics of nanosecond scale multiple pulse in carbon ablation

    SciTech Connect (OSTI)

    Pathak, Kedar; Povitsky, Alex [Department of Mechanical Engineering, University of Akron, Akron, Ohio 44325-3903 (United States)

    2008-12-01T23:59:59.000Z

    The behavior of ablated plumes produced by nanosecond scale multiple laser pulses typical for carbon ablation is studied in order to understand the plume expansion dynamics and shielding effect of plume with special interest to ionization of plumes. The patterns of a planar plume (typical for channel cutting) and an axisymmetric plume (typical for hole drilling) appear to be quite different. Ionization in carbon plume is estimated using the Saha equation. An iterative procedure is developed to determine the local equilibrium temperature affected by ionization. It is shown that though shielding due to the presence of ionized particles in carbon plume is small, the effect of ionization on plume temperature can be considerable. Shielding effect is calculated for laser pulses with different time intervals between pulses. The effects of high temperature and low density of plume are conflicting and cause shielding behavior to be nonmonotonic. It is shown that the nonmonotonic dependence of the delivered laser energy, the pulse number, and the difference in shielding characteristics between planar and axisymmetric formulations increase with the time duration between two consecutive pulses.

  11. GLOBAL TRANSPORT OF POLLUTION: Linking Science and Policy at Multiple Scales

    E-Print Network [OSTI]

    Selin, Noelle Eckley

    Joint Program on the Science and Policy of Global Change Center for Global Change Science Massachusetts regulation Also, exposure happens on local scales ·SCALE: International scientific assessments focused

  12. Analytical and experimental studies of plant-flow interaction at multiple scales

    E-Print Network [OSTI]

    Luhar, Mitul

    2012-01-01T23:59:59.000Z

    Across scales ranging from individual blades to river reaches, the interaction between water flow and vegetation has important ecological and engineering implications. At the reach-scale, vegetation is often the largest ...

  13. Bringing large-scale multiple genome analysis one step closer: ScalaBLAST and beyond

    SciTech Connect (OSTI)

    Oehmen, Christopher S.; Sofia, Heidi J.; Baxter, Douglas; Szeto, Ernest; Hugenholtz, Philip; Kyrpides, Nikos; Markowitz, Victor; Straatsma, Tjerk P.

    2007-06-01T23:59:59.000Z

    Genome sequence comparisons of exponentially growing data sets form the foundation for the comparative analysis tools provided by community biological data resources such as the Integrated Microbial Genome (IMG) system at the Joint Genome Institute (JGI). We present an example of how ScalaBLAST, a high-throughput sequence analysis program harnesses increasingly critical high-performance computing to perform sequence analysis which is a critical component of maintaining a state-of-the-art sequence data repository. The Integrated Microbial Genomes (IMG) system1 is a data management and analysis platform for microbial genomes hosted at the JGI. IMG contains both draft and complete JGI genomes integrated with other publicly available microbial genomes of all three domains of life. IMG provides tools and viewers for interactive analysis of genomes, genes and functions, individually or in a comparative context. Most of these tools are based on pre-computed pairwise sequence similarities involving millions of genes. These computations are becoming prohibitively time consuming with the rapid increase in the number of newly sequenced genomes incorporated into IMG and the need to refresh regularly the content of IMG in order to reflect changes in the annotations of existing genomes. Thus, building IMG 2.0 (released on December 1st 2006) entailed reloading from NCBI's RefSeq all the genomes in the previous version of IMG (IMG 1.6, as of September 1st, 2006) together with 1,541 new public microbial,viral and eukaryal genomes, bringing the total of IMG genomes to 2,301. A critical part of building IMG 2.0 involved using PNNL ScalaBLAST software for computing pairwise similarities for over 2.2 million genes in under 26 hours on 1,000 processors, thus illustrating the impact that new generation bioinformatics tools are poised to make in biology. The BLAST algorithm2, 3 is a familiar bioinformatics application for computing sequence similarity, and has become a workhorse in large-scale genomics projects. The rapid growth of genome resources such as IMG cannot be sustained without more powerful tools such as ScalaBLAST that use more effectively large scale computing resources to perform the core BLAST calculations. ScalaBLAST is a high performance computing algorithm designed to give high throughput BLAST results on high-end supercomputers. Other parallel sequence comparison applications have been developed4-6. However problems with scaling generally prevent these applications from being used for very large searches. ScalaBLAST7 is the first BLAST application to be both highly scaleable against the size of the database as well as the number of computer processors on high-end hardware and on commodity clusters. ScalaBLAST achieves high throughput by parsing a large collection of query sequences into independent subgroups. These smaller tasks are assigned to independent process groups. Efficient scaling is achieved by (transparently to the user) sharing only one copy of the target database across all processors using the Global Array toolkit 8, 9, which provides software implementation of shared memory interface. ScalaBLAST was initially deployed on the 1,960 processor MPP2 cluster in the Wiliam R. Wiley Environmental Molecular Sciences Laboratory at Pacific Northwest National Laboratory, and has since been ported to a variety of linux-based clusters and shared memory architectures, including SGI Altix, AMD opteron, and Intel Xeon-based clusters. Future targets include IBM BlueGene, Cray, and SGI Altix XE architectures. The importance of performing high-throughput calculations rapidly lies in the rate of growth of sequence data. For a genome sequencing center to provide multiple-genome comparison capabilities, it must keep pace with exponentially growing collection of protein data, both from its own genomes, and from the public genome information as well. As sequence data continues to grow exponentially, this challenge will only increase with time. Solving the BLAST throughput challenge for centralized data resources like IMG has the poten

  14. Mastering Uncertainty and Risk at Multiple Time Scales in the Future Electrical Grid

    SciTech Connect (OSTI)

    Chertkov, Michael [Los Alamos National Laboratory; Bent, Russell W. [Los Alamos National Laboratory; Backhaus, Scott N. [Los Alamos National Laboratory

    2012-07-10T23:59:59.000Z

    Today's electrical grids enjoy a relatively clean separation of spatio-temporal scales yielding a compartmentalization of grid design, optimization, control and risk assessment allowing for the use of conventional mathematical tools within each area. In contrast, the future grid will incorporate time-intermittent renewable generation, operate via faster electrical markets, and tap the latent control capability at finer grid modeling scales; creating a fundamentally new set of couplings across spatiotemporal scales and requiring revolutionary advances in mathematics techniques to bridge these scales. One example is found in decade-scale grid expansion planning in which today's algorithms assume accurate load forecasts and well-controlled generation. Incorporating intermittent renewable generation creates fluctuating network flows at the hourly time scale, inherently linking the ability of a transmission line to deliver electrical power to hourly operational decisions. New operations-based planning algorithms are required, creating new mathematical challenges. Spatio-temporal scales are also crossed when the future grid's minute-scale fluctuations in network flows (due to intermittent generation) create a disordered state upon which second-scale transient grid dynamics propagate effectively invalidating today's on-line dynamic stability analyses. Addressing this challenge requires new on-line algorithms that use large data streams from new grid sensing technologies to physically aggregate across many spatial scales to create responsive, data-driven dynamic models. Here, we sketch the mathematical foundations of these problems and potential solutions.

  15. Characterization of Polyurethane at Multiple Scales for Erosion Mechanisms Under Sand Particle Impact

    E-Print Network [OSTI]

    Sigamani, Nirmal

    2010-07-14T23:59:59.000Z

    B (501). ................ 9 Figure 1.10 Schematic of the micro structure of the polyurethane ................................ 9 Figure 1.11 Network structure in PU when the chain extender has: (a) even number...-scale, multi-phase separation in PU. In the micro scale, the soft segment matrix is mixed in the hard segment spherulites whereas in the nano scale the hard segment domains are dispersed in the soft segment matrix. 9 Figure 1.9 AFM images...

  16. Age-related changes in the plasticity and toughness of human cortical bone at multiple length-scales

    SciTech Connect (OSTI)

    Zimmermann, Elizabeth A.; Schaible, Eric; Bale, Hrishikesh; Barth, Holly D.; Tang, Simon Y.; Reichert, Peter; Busse, Bjoern; Alliston, Tamara; Ager III, Joel W.; Ritchie, Robert O.

    2011-08-10T23:59:59.000Z

    The structure of human cortical bone evolves over multiple length-scales from its basic constituents of collagen and hydroxyapatite at the nanoscale to osteonal structures at nearmillimeter dimensions, which all provide the basis for its mechanical properties. To resist fracture, bone’s toughness is derived intrinsically through plasticity (e.g., fibrillar sliding) at structural-scales typically below a micron and extrinsically (i.e., during crack growth) through mechanisms (e.g., crack deflection/bridging) generated at larger structural-scales. Biological factors such as aging lead to a markedly increased fracture risk, which is often associated with an age-related loss in bone mass (bone quantity). However, we find that age-related structural changes can significantly degrade the fracture resistance (bone quality) over multiple lengthscales. Using in situ small-/wide-angle x-ray scattering/diffraction to characterize sub-micron structural changes and synchrotron x-ray computed tomography and in situ fracture-toughness measurements in the scanning electron microscope to characterize effects at micron-scales, we show how these age-related structural changes at differing size-scales degrade both the intrinsic and extrinsic toughness of bone. Specifically, we attribute the loss in toughness to increased non-enzymatic collagen cross-linking which suppresses plasticity at nanoscale dimensions and to an increased osteonal density which limits the potency of crack-bridging mechanisms at micron-scales. The link between these processes is that the increased stiffness of the cross-linked collagen requires energy to be absorbed by “plastic” deformation at higher structural levels, which occurs by the process of microcracking.

  17. Nonadiabatic dynamics of electron transfer in solution: Explicit and implicit solvent treatments that include multiple relaxation time scales

    SciTech Connect (OSTI)

    Schwerdtfeger, Christine A.; Soudackov, Alexander V.; Hammes-Schiffer, Sharon, E-mail: shs3@illinois.edu [Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801 (United States)] [Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801 (United States)

    2014-01-21T23:59:59.000Z

    The development of efficient theoretical methods for describing electron transfer (ET) reactions in condensed phases is important for a variety of chemical and biological applications. Previously, dynamical dielectric continuum theory was used to derive Langevin equations for a single collective solvent coordinate describing ET in a polar solvent. In this theory, the parameters are directly related to the physical properties of the system and can be determined from experimental data or explicit molecular dynamics simulations. Herein, we combine these Langevin equations with surface hopping nonadiabatic dynamics methods to calculate the rate constants for thermal ET reactions in polar solvents for a wide range of electronic couplings and reaction free energies. Comparison of explicit and implicit solvent calculations illustrates that the mapping from explicit to implicit solvent models is valid even for solvents exhibiting complex relaxation behavior with multiple relaxation time scales and a short-time inertial response. The rate constants calculated for implicit solvent models with a single solvent relaxation time scale corresponding to water, acetonitrile, and methanol agree well with analytical theories in the Golden rule and solvent-controlled regimes, as well as in the intermediate regime. The implicit solvent models with two relaxation time scales are in qualitative agreement with the analytical theories but quantitatively overestimate the rate constants compared to these theories. Analysis of these simulations elucidates the importance of multiple relaxation time scales and the inertial component of the solvent response, as well as potential shortcomings of the analytical theories based on single time scale solvent relaxation models. This implicit solvent approach will enable the simulation of a wide range of ET reactions via the stochastic dynamics of a single collective solvent coordinate with parameters that are relevant to experimentally accessible systems.

  18. By Fred Pearce Published: 1:00PM BST 16 Aug 2007

    E-Print Network [OSTI]

    Stevenson, Paul

    109.xml) A weekly column taking an inside look at the environment, by Fred Pearce Climate change irony Suddenly, everyone wants a share of the Arctic. And all because climate change is removing the ice that there are such large chunks of the planet left that have not been claimed. Where else? Russia began the "scramble

  19. A New Driving Assistant for Automobiles Fred Yu, Bozena Kaminska and Pawel Gburzynski

    E-Print Network [OSTI]

    Gburzynski, Pawel

    A New Driving Assistant for Automobiles Fred Yu, Bozena Kaminska and Pawel Gburzynski School in the United States alone, approximately six millions automobiles accidents take place [1]. A great portion of these automobile accidents is caused by the drivers' lack of concentration while operating their vehicles. Some

  20. A Wireless Sensor-Based Driving Assistant for Automobiles Fred Yu, Bozena Kaminska, and Pawel Gburzynski

    E-Print Network [OSTI]

    Gburzynski, Pawel

    A Wireless Sensor-Based Driving Assistant for Automobiles Fred Yu, Bozena Kaminska, and Pawel alone, approximately six million automobile accidents take place. In total, those accidents result 230 billion US dollars [1]. A large fraction of all automobile accidents is caused by the drivers

  1. Large-Scale Evacuation Network Model for Transporting Evacuees with Multiple Priorities

    E-Print Network [OSTI]

    Na, Hyeong Suk

    2014-05-01T23:59:59.000Z

    There are increasing numbers of natural disasters occurring worldwide, particularly in populated areas. Such events affect a large number of people causing injuries and fatalities. With ever increasing damage being caused by large-scale natural...

  2. Scale-estimation of quantum coherent energy transport in multiple-minima systems

    E-Print Network [OSTI]

    Tristan Farrow; Vlatko Vedral

    2014-06-17T23:59:59.000Z

    A generic and intuitive model for coherent energy transport in multiple minima systems coupled to a quantum mechanical bath is shown. Using a simple spin-boson system, we illustrate how a generic donor-acceptor system can be brought into resonance using a narrow band of vibrational modes, such that the transfer efficiency of an electron-hole pair (exciton) is made arbitrarily high. Coherent transport phenomena in nature are of renewed interest since the discovery that a photon captured by the light-harvesting complex (LHC) in photosynthetic organisms can be conveyed to a chemical reaction centre with near-perfect efficiency. Classical explanations of the transfer use stochastic diffusion to model the hopping motion of a photo-excited exciton. This accounts inadequately for the speed and efficiency of the energy transfer measured in a series of recent landmark experiments. Taking a quantum mechanical perspective can help capture the salient features of the efficient part of that transfer. To show the versatility of the model, we extend it to a multiple minima system comprising seven-sites, reminiscent of the widely studied Fenna-Matthews-Olson (FMO) light-harvesting complex. We show that an idealised transport model for multiple minima coupled to a narrow-band phonon can transport energy with arbitrarily high efficiency.

  3. Multiple scales of diamond mining in Akwatia, Ghana: addressing environmental and human development impact

    E-Print Network [OSTI]

    Vermont, University of

    degradation caused by the gold mining is significant, chemical contamination from the gold extraction process impact on environmental degradation, health, and the livelihood of artisanal miners. We conclude-generation for small-scale miners, there are some human development challenges, related to environmental burden from

  4. A NONLINEAR INVERSE SCALE SPACE METHOD FOR A CONVEX MULTIPLICATIVE NOISE MODEL

    E-Print Network [OSTI]

    Soatto, Stefano

    AND STANLEY OSHER Abstract. We are motivated by a recently developed nonlinear inverse scale space method to an iterative regularization method based on the Bregman distance in [21], motivated by Meyer's analysis in [19 (). In order to preserve the texture information Meyer suggested a modified variational problem using the space

  5. About the role of the Higgs boson in the early Fred Jegerlehner, DESY Zeuthen/Humboldt University Berlin

    E-Print Network [OSTI]

    Röder, Beate

    About the role of the Higgs boson in the early universe Fred Jegerlehner, DESY Zeuthen ­ April 16-17, 2014 5 #12;The Higgs is special! Ì the Higgs boson was invented 1964 by Higgs, Englert

  6. Multiple time scale blinking in InAs quantum dot single-photon sources

    E-Print Network [OSTI]

    Marcelo Davanco; C. Stephen Hellberg; Serkan Ates; Antonio Badolato; Kartik Srinivasan

    2014-04-21T23:59:59.000Z

    We use photon correlation measurements to study blinking in single, epitaxially-grown self-assembled InAs quantum dots situated in circular Bragg grating and microdisk cavities. The normalized second-order correlation function g(2)(\\tau) is studied across eleven orders of magnitude in time, and shows signatures of blinking over timescales ranging from tens of nanoseconds to tens of milliseconds. The g(2)(\\tau) data is fit to a multi-level system rate equation model that includes multiple non-radiating (dark) states, from which radiative quantum yields significantly less than 1 are obtained. This behavior is observed even in situations for which a direct histogramming analysis of the emission time-trace data produces inconclusive results.

  7. Multiplicative scale uncertainties in the unified approach for constructing confidence intervals

    E-Print Network [OSTI]

    E. S. Smith

    2009-03-31T23:59:59.000Z

    We have investigated how uncertainties in the estimation of the detection efficiency affect the 90% confidence intervals in the unified approach for constructing confidence intervals. The study has been conducted for experiments where the number of detected events is large and can be described by a Gaussian probability density function. We also assume the detection efficiency has a Gaussian probability density and study the range of the relative uncertainties $\\sigma_\\epsilon$ between 0 and 30%. We find that the confidence intervals provide proper coverage over a wide signal range and increase smoothly and continuously from the intervals that ignore scale uncertainties with a quadratic dependence on $\\sigma_\\epsilon$.

  8. What can data provide for HLbL ? Fred Jegerlehner

    E-Print Network [OSTI]

    Röder, Beate

    polarization tensor µ(q1, q2, q3) = d4 x1 d4 x2 d4 x3 ei (q1x1+q2x2+q3x3) × 0 | T{ jµ(x1) j(x2) j(x3) j(0)} | 0 (0, s1, s2)­plane Two scale problem: "open regions" RLA ??? ??? pQCD One scale problem: "no problem

  9. Analysis of Wind Power and Load Data at Multiple Time Scales

    SciTech Connect (OSTI)

    Coughlin, Katie; Eto, J.H.

    2010-12-20T23:59:59.000Z

    In this study we develop and apply new methods of data analysis for high resolution wind power and system load time series, to improve our understanding of how to characterize highly variable wind power output and the correlations between wind power and load. These methods are applied to wind and load data from the ERCOT region, and wind power output from the PJM and NYISO areas. We use a wavelet transform to apply mathematically well-defined operations of smoothing and differencing to the time series data. This approach produces a set of time series of the changes in wind power and load (or ?deltas?), over a range of times scales from a few seconds to approximately one hour. A number of statistical measures of these time series are calculated. We present sample distributions, and devise a method for fitting the empirical distribution shape in the tails. We also evaluate the degree of serial correlation, and linear correlation between wind and load. Our examination of the data shows clearly that the deltas do not follow a Gaussian shape; the distribution is exponential near the center and appears to follow a power law for larger fluctuations. Gaussian distributions are frequently used in modeling studies. These are likely to over-estimate the probability of small to moderate deviations. This in turn may lead to an over-estimation of the additional reserve requirement (hence the cost) for high penetration of wind. The Gaussian assumption provides no meaningful information about the real likelihood of large fluctuations. The possibility of a power law distribution is interesting because it suggests that the distribution shape for of wind power fluctuations may become independent of system size for large enough systems.

  10. Evaluating atmospheric CO2 inversions at multiple scales over a highly-inventoried agricultural landscape.

    SciTech Connect (OSTI)

    Schuh, Andrew E.; Lauvaux, Thomas; West, Tristram O.; Denning, A.; Davis, Kenneth J.; Miles, Natasha; Richardson, S. J.; Uliasz, Marek; Lokupitiya, Erandathie; Cooley, Dan; Andrews, Arlyn; Ogle, Stephen

    2013-05-01T23:59:59.000Z

    An intensive regional research campaign was conducted by the North American Carbon Program (NACP) in 2005 to study the carbon cycle of the highly productive agricultural regions of the Midwestern United States. Forty-_ve di_erent associated projects were spawned across _ve U.S. agencies over the course of nearly a decade involving hundreds of researchers. The primary objective of the project was to investigate the ability of atmospheric inversion techniques to use highly calibrated CO2 mixing ratio data to estimate CO2 exchange over the major croplands of the U.S. Statistics from densely monitored crop production, consisting primarily corn and soybeans, provided the backbone of a well-studied\\bottom up"flux estimate that was used to evaluate the atmospheric inversion results. Three different inversion systems, representing spatial scales varying from high resolution mesoscale, to continental, to global, coupled to different transport models and optimization techniques were compared to the bottom up" inventory estimates. The mean annual CO2-C sink for 2007 from the inversion systems ranged from 120 TgC to 170 TgC, when viewed across a wide variety of inversion setups, with the best" point estimates ranging from 145 TgC to 155 TgC. Inversion-based mean C sink estimates were generally slightly stronger, but statistically indistinguishable,from the inventory estimate whose mean C sink was 135 TgC. The inversion results showed temporal correlations at seasonal lengths while week to week correlations remained low. Comparisons were made between atmospheric transport yields of the two regional inversion systems, which despite having different influence footprints in space and time due to differences in underlying transport models and external forcings, showed similarity when aggregated in space and time.

  11. Noel C. MacDonald Fred Kavli Chair for MEMS

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Micro-mirror Array Ti/Au -Bonding Titanium Waveguide/relay & Wafer ­scale package Introduction · Ti Packaging #12;UCSB 3D Ti MEMS · Through- etch titanium wafer · Deposit gold on mating surfaces · Bond Wafers be processed using power metallurgy. ·Ti can be joined by fusion welding, brazing, adhesives, diffusion bonding

  12. TBU-0078 - In the Matter of Fred Hua | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014,ZaleskiThis Decision considers an Appeal ofIn a letter dated JanuaryFred

  13. Fred Richard Mynatt, 1981 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4(SC) MappingOctober 12,U.S. DOE OfficeU.S. DOEFred N. Mortensen,Fred

  14. Hi FRED Team! Welcome to our community area | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | Open EnergyInformation Hess Retail Natural Gas and Elec.HexHi FRED

  15. Library and Information Technology Final Report Fred Heath -Dean & Director, Sterling C. Evans Library, On-Campus Co-Chair

    E-Print Network [OSTI]

    Library and Information Technology Final Report Members Fred Heath - Dean & Director, Sterling C. Evans Library, On-Campus Co-Chair Ron Skaggs '65 - Chairman & CEO, HKS Architects, Off-Campus Co, Sterling C. Evans Library M. Michael Park - Attorney at Law Linda Parrish '78 - Professor, Department

  16. Fred Hutchinson Cancer Research Center, Seattle, Washington: Laboratories for the 21st Century Case Studies (Revision)

    SciTech Connect (OSTI)

    Not Available

    2002-03-01T23:59:59.000Z

    This case study was prepared by participants in the Laboratories for the 21st Century program, a joint endeavor of the U.S. Environmental Protection Agency and the U.S. Department of Energy's Federal Energy Management Program. The goal of this program is to foster greater energy efficiency in new laboratory buildings for both the public and the private sectors. Retrofits of existing laboratories are also encouraged. The energy-efficient features of the laboratories in the Fred Hutchinson Cancer Research Center complex in Seattle, Washington, include extensive use of efficient lighting, variable-air-volume controls, variable-speed drives, motion sensors, and high-efficiency chillers and motors. With about 532,000 gross square feet, the complex is estimated to use 33% less electrical energy than most traditional research facilities consume because of its energy-efficient design and features.

  17. Fred Hutchinson Cancer Research Center, Seattle, Washington: Laboratories for the 21st Century Case Studies

    SciTech Connect (OSTI)

    Not Available

    2001-12-01T23:59:59.000Z

    This case study was prepared by participants in the Laboratories for the 21st Century program, a joint endeavor of the U.S. Environmental Protection Agency and the U.S. Department of Energy's Federal Energy Management Program. The goal of this program is to foster greater energy efficiency in new laboratory buildings for both the public and the private sectors. Retrofits of existing laboratories are also encouraged. The energy-efficient features of the laboratories in the Fred Hutchinson Cancer Research Center complex in Seattle, Washington, include extensive use of efficient lighting, variable-air-volume controls, variable-speed drives, motion sensors, and high-efficiency chillers and motors. With about 532,000 gross square feet, the complex is estimated to use 33% less electrical energy than most traditional research facilities consume because of its energy-efficient design and features.

  18. OBSERVATION OF ANISOTROPY IN THE ARRIVAL DIRECTIONS OF GALACTIC COSMIC RAYS AT MULTIPLE ANGULAR SCALES WITH IceCube

    SciTech Connect (OSTI)

    Abbasi, R.; Aguilar, J. A.; Andeen, K.; Baker, M. [Department of Physics, University of Wisconsin, Madison, WI 53706 (United States); Abdou, Y. [Department of Physics and Astronomy, University of Gent, B-9000 Gent (Belgium); Abu-Zayyad, T. [Department of Physics, University of Wisconsin, River Falls, WI 54022 (United States); Adams, J. [Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch (New Zealand); Ahlers, M. [Department of Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP (United Kingdom); Altmann, D. [III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen (Germany); Auffenberg, J.; Becker, K.-H. [Department of Physics, University of Wuppertal, D-42119 Wuppertal (Germany); Bai, X. [Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE 19716 (United States); Barwick, S. W. [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Bay, R. [Department of Physics, University of California, Berkeley, CA 94720 (United States); Alba, J. L. Bazo; Benabderrahmane, M. L. [DESY, D-15735 Zeuthen (Germany); Beattie, K. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Beatty, J. J. [Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 (United States); Bechet, S. [Universite Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels (Belgium); Becker, J. K. [Fakultaet fuer Physik and Astronomie, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany)

    2011-10-10T23:59:59.000Z

    Between 2009 May and 2010 May, the IceCube neutrino detector at the South Pole recorded 32 billion muons generated in air showers produced by cosmic rays with a median energy of 20 TeV. With a data set of this size, it is possible to probe the southern sky for per-mil anisotropy on all angular scales in the arrival direction distribution of cosmic rays. Applying a power spectrum analysis to the relative intensity map of the cosmic ray flux in the southern hemisphere, we show that the arrival direction distribution is not isotropic, but shows significant structure on several angular scales. In addition to previously reported large-scale structure in the form of a strong dipole and quadrupole, the data show small-scale structure on scales between 15{sup 0} and 30{sup 0}. The skymap exhibits several localized regions of significant excess and deficit in cosmic ray intensity. The relative intensity of the smaller-scale structures is about a factor of five weaker than that of the dipole and quadrupole structure. The most significant structure, an excess localized at (right ascension {alpha} = 122.{sup 0}4 and declination {delta} = -47.{sup 0}4), extends over at least 20{sup 0} in right ascension and has a post-trials significance of 5.3{sigma}. The origin of this anisotropy is still unknown.

  19. The Beginnings of Energy in Third Graders' Reasoning Jennifer Radoff 1, Fred Goldberg2, David Hammer3, and Sharon Fargason4

    E-Print Network [OSTI]

    Goldberg, Fred M.

    School, San Diego Abstract. We present snippets of third-graders discussing ideas about energy as partThe Beginnings of Energy in Third Graders' Reasoning Jennifer Radoff 1, Fred Goldberg2, David science education. INTRODUCTION Over the past 20 years, research on learning in physics and other sciences

  20. A Pervasive Computing Solution to Asset, Problem and Knowledge Management Suman K. Kalia, Charles C. Tappert, Allen Stix, and Fred Grossman

    E-Print Network [OSTI]

    Tappert, Charles

    . Tappert, Allen Stix, and Fred Grossman School of Computer Science and Information Systems Pace University desktop support team across the U.S. Introduction The following quote (IBM Pervasive Computing Website computing" is relatively new, its concept has historical precedence. Companies like IBM (IBM Redbook 1995

  1. Multi-Scale Characterization: Evaluation of Microstructural and Superconducting

    E-Print Network [OSTI]

    Multiple Length Scales in 2nd Generation HTS Wire. MultiMulti--Scale Characterization: Evaluation of Across Multiple Length Scales inProperties Across Multiple Length Scales in 22ndnd Generation HTS Wire.Generation HTS Wire. Terry Holesinger and Leonardo Civale Superconductivity Technology Center Los Alamos National

  2. Multiple Scales in Small-World Networks

    E-Print Network [OSTI]

    Kasturirangan, Rajesh

    1999-08-11T23:59:59.000Z

    Small-world architectures may be implicated in a range of phenomena from networks of neurons in the cerebral cortex to social networks and propogation of viruses. Small-world networks are interpolations of regular and ...

  3. The multiple vortex nature of tropical cyclogenesis

    E-Print Network [OSTI]

    Sippel, Jason Allen

    2005-02-17T23:59:59.000Z

    cells and vortices are the respective source of PV production and building blocks for the meso-?-scale vortices. Finally, this thesis discusses issues related to the multiple vortex nature of tropical cyclone formation. For instance, the tracking...

  4. Proton-proton multiplicity distributions at LHC and the Pomeron intercept

    E-Print Network [OSTI]

    A. Capella; E. G. Ferreiro

    2013-01-15T23:59:59.000Z

    We compute the proton-proton multiplicity distributions at LHC energies in the framework of a multiple scattering model assuming a Poisson distribution for each inelastic collision. Multiple scattering is essential to broaden the multiplicity distribution. We obtain approximate KNO scaling for small pseudo-rapidity intervals ($|\\eta | < 0.5$) and sizable KNO scaling violations for larger ones, in agreement with experiment.

  5. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives and Policies

  6. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives and PoliciesHome

  7. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives and PoliciesHomeno feeds

  8. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives and PoliciesHomeno feeds

  9. OpenEI Community - FRED

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcernsCompany Oil and GasOff the GridHome All0 en

  10. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarms A S Jump to: navigation,FAFCO Inc Jump

  11. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HD High-Definition FormationOpenEI

  12. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HD High-Definition

  13. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HD High-DefinitionVisualization Type

  14. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HD High-DefinitionVisualization

  15. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HD High-DefinitionVisualizationTool

  16. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HD

  17. FRED | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HDFRED Type Term Title Author Replies

  18. Charged-Particle Multiplicity in Proton-Proton Collisions

    E-Print Network [OSTI]

    Jan Fiete Grosse-Oetringhaus; Klaus Reygers

    2010-02-24T23:59:59.000Z

    This article summarizes and critically reviews measurements of charged-particle multiplicity distributions and pseudorapidity densities in p+p(pbar) collisions between sqrt(s) = 23.6 GeV and sqrt(s) = 1.8 TeV. Related theoretical concepts are briefly introduced. Moments of multiplicity distributions are presented as a function of sqrt(s). Feynman scaling, KNO scaling, as well as the description of multiplicity distributions with a single negative binomial distribution and with combinations of two or more negative binomial distributions are discussed. Moreover, similarities between the energy dependence of charged-particle multiplicities in p+p(pbar) and e+e- collisions are studied. Finally, various predictions for pseudorapidity densities, average multiplicities in full phase space, and multiplicity distributions of charged particles in p+p(pbar) collisions at the LHC energies of sqrt(s) = 7 TeV, 10 TeV, and 14 TeV are summarized and compared.

  19. Managing a Software Ecosystem Using a Multiple Software Product Line

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Managing a Software Ecosystem Using a Multiple Software Product Line: a Case Study on Digital increases the number of software ecosystems: software platforms developed and maintained in a decentralized YourCast from a single system to a medium- scale ecosystem, we show how organizing it as a multiple

  20. Multiple mass solvers

    E-Print Network [OSTI]

    B. Jegerlehner

    1997-08-29T23:59:59.000Z

    We present a general method to construct multiple mass solvers from standard algorithms. As an example, the BiCGstab-M algorithm is derived.

  1. Multiple System Rate Process

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

    DSW Multiple System Transmission Rate Process Federal Register Notice Withdrawing Rate Proposal (PDF) Formal Process Extension Federal Register Notice (PDF) Customer Savisngs Under...

  2. Charged-particle multiplicity at LHC energies

    ScienceCinema (OSTI)

    None

    2011-10-06T23:59:59.000Z

    The talk presents the measurement of the pseudorapidity density and the multiplicity distribution with ALICE at the achieved LHC energies of 0.9 and 2.36 TeV.An overview about multiplicity measurements prior to LHC is given and the related theoretical concepts are briefly discussed.The analysis procedure is presented and the systematic uncertainties are detailed. The applied acceptance corrections and the treatment of diffraction are discussed.The results are compared with model predictions. The validity of KNO scaling in restricted phase space regions is revisited. 

  3. SEMANTIC DATA INTEGRATION IN A MULTIPLE REPRESENTATION ENVIRONMENT

    E-Print Network [OSTI]

    Köbben, Barend

    SEMANTIC DATA INTEGRATION IN A MULTIPLE REPRESENTATION ENVIRONMENT J.E. Stotera , R.L.G. Lemmensa: Semantic data integration, Multi Representation Database, Generalisation, ontologies, machine ontology at the different scales are semantically integrated, 2) objects in the different scales representing the same real

  4. Multiple density layered insulator

    DOE Patents [OSTI]

    Alger, Terry W. (Tracy, CA)

    1994-01-01T23:59:59.000Z

    A multiple density layered insulator for use with a laser is disclosed wh provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation.

  5. Multiple density layered insulator

    DOE Patents [OSTI]

    Alger, T.W.

    1994-09-06T23:59:59.000Z

    A multiple density layered insulator for use with a laser is disclosed which provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation. 4 figs.

  6. Nuclear scales

    SciTech Connect (OSTI)

    Friar, J.L.

    1998-12-01T23:59:59.000Z

    Nuclear scales are discussed from the nuclear physics viewpoint. The conventional nuclear potential is characterized as a black box that interpolates nucleon-nucleon (NN) data, while being constrained by the best possible theoretical input. The latter consists of the longer-range parts of the NN force (e.g., OPEP, TPEP, the {pi}-{gamma} force), which can be calculated using chiral perturbation theory and gauged using modern phase-shift analyses. The shorter-range parts of the force are effectively parameterized by moments of the interaction that are independent of the details of the force model, in analogy to chiral perturbation theory. Results of GFMC calculations in light nuclei are interpreted in terms of fundamental scales, which are in good agreement with expectations from chiral effective field theories. Problems with spin-orbit-type observables are noted.

  7. A Multiple Procedure DDT

    E-Print Network [OSTI]

    Knight, Thomas

    1968-01-01T23:59:59.000Z

    This Memo. Describes a version of DDT used as the command level of the A.I. Group PDP-6 Time Sharing System (ITS). Special features include capability to handle multiple jobs, ability to stop open read or write references ...

  8. Multiple jet interactions

    E-Print Network [OSTI]

    Hehr, Roger James

    1983-01-01T23:59:59.000Z

    MULTIPLE JET INTERACTIONS A Thesis by ROGER JAMES HEHR Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1983 Major Subject: Aerospace Engineering... MULTIPLE JET INTERACTIONS A Thesis by ROGER JAMES HEHR Approved as to style and content by: David . Norton (Chairman of Committee) raid L. orrison (Mem er) Leland A. Carlson (Member) Er est . Cross, r. (Head of Department) August 1983 ABSTRACT...

  9. "Tailoring synthesis of new materials at multiple length scales."

    E-Print Network [OSTI]

    Acton, Scott

    for a lithium-ion battery cathode material. · Published a method to tailor the transition metal composition in battery electrode materials. · Published a previously unreported safety issue with a popular lithium-ion to dramatically increase the energy density of lithium-ion batteries. We employ a hierarchical, multiscale

  10. Hybrid supramolecular and colloidal hydrogels bridging multiple length scales

    E-Print Network [OSTI]

    Jane?ek, Emma-Rose; McKee, Jason R.; Tan, Cindy S. Y.; Nykänen, Antti; Kettunen, Marjo; Laine, Janne; Ikkala, Olli; Scherman, Oren A.

    2015-03-13T23:59:59.000Z

    Hybrid nanocomposites were constructed based on colloidal nanofibrillar hydrogels with interpenetrating supramolecular hydrogels, displaying enhanced rheological yield strain and a synergistic improvement in storage modulus. The supramolecular...

  11. Structuring Materials on Multiple Length Scales for Energy Applications |

    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

  12. FOURIER TRANSFORM MULTIPLE QUANTUM NMR

    E-Print Network [OSTI]

    Drobny, G.

    2011-01-01T23:59:59.000Z

    of transition observed in Fourier transform multiple quantumDecember 18-19, 1979 FOURIER TRANSFORM MULTIPLE QUANTUM NMRof London, December 1978. FOURIER TRANSFO~~ MULTIPLE QUANTUM

  13. Multiple stage multiple filter hydrate store

    DOE Patents [OSTI]

    Bjorkman, H.K. Jr.

    1983-05-31T23:59:59.000Z

    An improved hydrate store for a metal halogen battery system is disclosed which employs a multiple stage, multiple filter means for separating the halogen hydrate from the liquid used in forming the hydrate. The filter means is constructed in the form of three separate sections which combine to substantially cover the interior surface of the store container. Exit conduit means is provided in association with the filter means for transmitting liquid passing through the filter means to a hydrate former subsystem. The hydrate former subsystem combines the halogen gas generated during the charging of the battery system with the liquid to form the hydrate in association with the store. Relief valve means is interposed in the exit conduit means for controlling the operation of the separate sections of the filter means, such that the liquid flow through the exit conduit means from each of the separate sections is controlled in a predetermined sequence. The three separate sections of the filter means operate in three discrete stages to provide a substantially uniform liquid flow to the hydrate former subsystem during the charging of the battery system. The separation of the liquid from the hydrate causes an increase in the density of the hydrate by concentrating the hydrate along the filter means. 7 figs.

  14. Multiple stage multiple filter hydrate store

    DOE Patents [OSTI]

    Bjorkman, Jr., Harry K. (Birmingham, MI)

    1983-05-31T23:59:59.000Z

    An improved hydrate store for a metal halogen battery system is disclosed which employs a multiple stage, multiple filter means or separating the halogen hydrate from the liquid used in forming the hydrate. The filter means is constructed in the form of three separate sections which combine to substantially cover the interior surface of the store container. Exit conduit means is provided in association with the filter means for transmitting liquid passing through the filter means to a hydrate former subsystem. The hydrate former subsystem combines the halogen gas generated during the charging of the battery system with the liquid to form the hydrate in association with the store. Relief valve means is interposed in the exit conduit means for controlling the operation of the separate sections of the filter means, such that the liquid flow through the exit conduit means from each of the separate sections is controlled in a predetermined sequence. The three separate sections of the filter means operate in three discrete stages to provide a substantially uniform liquid flow to the hydrate former subsystem during the charging of the battery system. The separation of the liquid from the hydrate causes an increase in the density of the hydrate by concentrating the hydrate along the filter means.

  15. Neuronal Multiple Temporal Scales CervantesPrez et al 1 Neuronal networks working at multiple temporal scales as a basis

    E-Print Network [OSTI]

    Department, Instituto Tecnológico Autónomo de México (ITAM) Río Hondo No.1, San Angel Tizapán; 01000 México D.F. cervante@itam.mx; alfredo@itam.mx b Department of Physics and Astronomy, University of Pittsburgh

  16. Neuronal Multiple Temporal Scales Cervantes-Prez et al 1 Neuronal networks working at multiple temporal scales as a basis

    E-Print Network [OSTI]

    Department, Instituto Tecnológico Autónomo de México (ITAM) Río Hondo No.1, San Angel Tizapán; 01000 México D.F. cervante@itam.mx; alfredo@itam.mx b Department of Physics and Astronomy, University of Pittsburgh

  17. Energy Dependence of Multiplicity Fluctuations in Heavy Ion Collisions

    E-Print Network [OSTI]

    Lungwitz, B; Anticic, T; Baatar, B; Barna, D; Bartke, J; Betev, L; Bia?kowska, H; Blume, C; Boimska, B; Botje, M; Bracinik, J; Bramm, R; Buncic, P; Cerny, V; Christakoglou, P; Chung, P; Chvala, O; Cramer, J G; Csató, P; Dinkelaker, P; Eckardt, V; Flier, D; Fodor, Z; Foka, P; Friese, V; Gál, J; Ga´zdzicki, M; Genchev, V; Georgopoulos, G; G?adysz, E; Grebieszkow, K; Hegyi, S; Höhne, C; Kadija, K; Karev, A; Kikola, D; Kliemant, M; Kniege, S; Kolesnikov, V I; Kornas, E; Korus, R; Kowalski, M; Kraus, I; Kreps, M; Laszlo, A; Lacey, R; Van Leeuwen, M; Lévai, Peter; Litov, L; Makariev, M; Malakhov, A I; Mateev, M; Melkumov, G L; Mischke, A; Mitrovski, M; Molnár, J; Mrówczynski, S; Nicolic, V; Pálla, G; Panagiotou, A D; Panayotov, D; Petridis, A; Peryt, W; Pikna, M; Pluta, J; Prindle, D; Pühlhofer, F; Renfordt, R; Roland, C; Roland, G; Rybczynski, M; Rybicki, A; Sandoval, A; Schmitz, N; Schuster, T; Seyboth, P; Siklér, F; Sitár, B; Skrzypczak, E; Slodkowski, M; Stefanek, G; Stock, R; Strabel, C; Ströbele, H; Susa, T; Szentpétery, I; Sziklai, J; Szuba, M; Szymanski, P; Trubnikov, V; Varga, D; Vassiliou, M; Veres, G I; Vesztergombi, G; Vranic, D; Wetzler, A; W?odarczyk, Z; Wojtaszek, A; Yoo, I K; Zimányi, J; Lungwitz, Benjamin

    2006-01-01T23:59:59.000Z

    The energy dependence of multiplicity fluctuations was studied for the most central $Pb+Pb$ collisions at $20A$, $30A$, $40A$, $80A$ and $158A$ GeV by the NA49 experiment at the CERN SPS. The multiplicity distribution for negatively and positively charged hadrons is significantly narrower than Poisson one for all energies. No significant structure in energy dependence of the scaled variance of multiplicity fluctuations is observed. The measured scaled variance is lower than the one predicted by the grand-canonical formulation of the hadron-resonance gas model. The results for scaled variance are in approximate agreement with the string-hadronic model UrQMD.

  18. Heat and Mass Transfer in Fires: Scaling Laws and their Application 

    E-Print Network [OSTI]

    Torero, Jose L

    Fire is a phenomenon that covers a multiplicity of scales depending on the different processes involved. Length scales range from the nanometres when addressing material flammability to the kilometres when dealing with ...

  19. Multiple gap photovoltaic device

    DOE Patents [OSTI]

    Dalal, Vikram L. (Newark, DE)

    1981-01-01T23:59:59.000Z

    A multiple gap photovoltaic device having a transparent electrical contact adjacent a first cell which in turn is adjacent a second cell on an opaque electrical contact, includes utilizing an amorphous semiconductor as the first cell and a crystalline semiconductor as the second cell.

  20. Polycrystal Plasticity -Multiple Slip"

    E-Print Network [OSTI]

    Rollett, Anthony D.

    Polycrystal Plasticity - Multiple Slip" 27-750 Texture, Microstructure & Anisotropy A.D. Rollett;2 Objective" The objective of this lecture is to show how plastic deformation in polycrystals requires of Los Alamos polycrystal plasticity, LApp; also the Viscoplastic Selfconsistent code, VPSC; also

  1. Fractal geometry predicts varying body size scaling relationships

    E-Print Network [OSTI]

    Minnesota, University of

    .............................................................. Fractal geometry predicts varying scaling based on fractal resource distributions, in which resource encounter rates are a function of body that are multiples of 1/4, which have been recently explained from the fractal branching architecture of organisms4

  2. Beta diversity of marine bacteria depends on temporal scale

    E-Print Network [OSTI]

    Hatosy, Stephen M; Martiny, Jennifer B. H; Sachdeva, Rohan; Steele, Joshua; Fuhrman, Jed A; Martiny, Adam C

    2013-01-01T23:59:59.000Z

    scales of aquatic bacterial beta diversity. Frontiers inthe multiple meanings of beta diversity: a roadmap for theCondit, R. , et al. 2002. Beta-diversity in tropical forest

  3. Studies of multiplicity in relativistic heavy-ion collisions

    E-Print Network [OSTI]

    B. B. Back

    2004-11-29T23:59:59.000Z

    In this talk I'll review the present status of charged particle multiplicity measurements from heavy-ion collisions. The characteristic features of multiplicity distributions obtained in Au+Au collisions will be discussed in terms of collision centrality and energy and compared to those of p+p collisions. Multiplicity measurements of d+Au collisions at 200 GeV nucleon-nucleon center-of-mass energy will also be discussed. The results will be compared to various theoretical models and simple scaling properties of the data will be identified.

  4. Multiple capillary biochemical analyzer

    DOE Patents [OSTI]

    Dovichi, N.J.; Zhang, J.Z.

    1995-08-08T23:59:59.000Z

    A multiple capillary analyzer allows detection of light from multiple capillaries with a reduced number of interfaces through which light must pass in detecting light emitted from a sample being analyzed, using a modified sheath flow cuvette. A linear or rectangular array of capillaries is introduced into a rectangular flow chamber. Sheath fluid draws individual sample streams through the cuvette. The capillaries are closely and evenly spaced and held by a transparent retainer in a fixed position in relation to an optical detection system. Collimated sample excitation radiation is applied simultaneously across the ends of the capillaries in the retainer. Light emitted from the excited sample is detected by the optical detection system. The retainer is provided by a transparent chamber having inward slanting end walls. The capillaries are wedged into the chamber. One sideways dimension of the chamber is equal to the diameter of the capillaries and one end to end dimension varies from, at the top of the chamber, slightly greater than the sum of the diameters of the capillaries to, at the bottom of the chamber, slightly smaller than the sum of the diameters of the capillaries. The optical system utilizes optic fibers to deliver light to individual photodetectors, one for each capillary tube. A filter or wavelength division demultiplexer may be used for isolating fluorescence at particular bands. 21 figs.

  5. An Electricity Trade Model for Multiple Power Distribution Networks in Smart Energy Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    . A microgrid is a small scale power network, which contains one or multiple types of renewable power generators complicated with the adoption of energy storage [5]. For a power network, the amount of energy generationAn Electricity Trade Model for Multiple Power Distribution Networks in Smart Energy Systems

  6. ORIGINAL PAPER Linking multiple-level tree traits with biomass accumulation

    E-Print Network [OSTI]

    Bermingham, Eldredge

    ORIGINAL PAPER Linking multiple-level tree traits with biomass accumulation in native tree species, at the individual scale, links between biomass accumulation and multiple-level tree traits: biomass parti- tioning and Mohren 1995; Kraenzel et al. 2003). However, in some cases, poor adaptation of exotic species to climate

  7. Multiple layer insulation cover

    DOE Patents [OSTI]

    Farrell, James J. (Livingston Manor, NY); Donohoe, Anthony J. (Ovid, NY)

    1981-11-03T23:59:59.000Z

    A multiple layer insulation cover for preventing heat loss in, for example, a greenhouse, is disclosed. The cover is comprised of spaced layers of thin foil covered fabric separated from each other by air spaces. The spacing is accomplished by the inflation of spaced air bladders which are integrally formed in the cover and to which the layers of the cover are secured. The bladders are inflated after the cover has been deployed in its intended use to separate the layers of the foil material. The sizes of the material layers are selected to compensate for sagging across the width of the cover so that the desired spacing is uniformly maintained when the cover has been deployed. The bladders are deflated as the cover is stored thereby expediting the storage process and reducing the amount of storage space required.

  8. On Multiple Einstein Rings

    E-Print Network [OSTI]

    M. C. Werner; J. An; N. W. Evans

    2008-07-30T23:59:59.000Z

    A number of recent surveys for gravitational lenses have found examples of double Einstein rings. Here, we investigate analytically the occurrence of multiple Einstein rings. We prove, under very general assumptions, that at most one Einstein ring can arise from a mass distribution in a single plane lensing a single background source. Two or more Einstein rings can therefore only occur in multi-plane lensing. Surprisingly, we show that it is possible for a single source to produce more than one Einstein ring. If two point masses (or two isothermal spheres) in different planes are aligned with observer and source on the optical axis, we show that there are up to three Einstein rings. We also discuss the image morphologies for these two models if axisymmetry is broken, and give the first instances of magnification invariants in the case of two lens planes.

  9. Mixed Mode Matrix Multiplication

    SciTech Connect (OSTI)

    Meng-Shiou Wu; Srinivas Aluru; Ricky A. Kendall

    2004-09-30T23:59:59.000Z

    In modern clustering environments where the memory hierarchy has many layers (distributed memory, shared memory layer, cache,...), an important question is how to fully utilize all available resources and identify the most dominant layer in certain computations. When combining algorithms on all layers together, what would be the best method to get the best performance out of all the resources we have? Mixed mode programming model that uses thread programming on the shared memory layer and message passing programming on the distributed memory layer is a method that many researchers are using to utilize the memory resources. In this paper, they take an algorithmic approach that uses matrix multiplication as a tool to show how cache algorithms affect the performance of both shared memory and distributed memory algorithms. They show that with good underlying cache algorithm, overall performance is stable. When underlying cache algorithm is bad, superlinear speedup may occur, and an increasing number of threads may also improve performance.

  10. AM with Multiple Merlins

    E-Print Network [OSTI]

    Scott Aaronson; Russell Impagliazzo; Dana Moshkovitz

    2014-01-27T23:59:59.000Z

    We introduce and study a new model of interactive proofs: AM(k), or Arthur-Merlin with k non-communicating Merlins. Unlike with the better-known MIP, here the assumption is that each Merlin receives an independent random challenge from Arthur. One motivation for this model (which we explore in detail) comes from the close analogies between it and the quantum complexity class QMA(k), but the AM(k) model is also natural in its own right. We illustrate the power of multiple Merlins by giving an AM(2) protocol for 3SAT, in which the Merlins' challenges and responses consist of only n^{1/2+o(1)} bits each. Our protocol has the consequence that, assuming the Exponential Time Hypothesis (ETH), any algorithm for approximating a dense CSP with a polynomial-size alphabet must take n^{(log n)^{1-o(1)}} time. Algorithms nearly matching this lower bound are known, but their running times had never been previously explained. Brandao and Harrow have also recently used our 3SAT protocol to show quasipolynomial hardness for approximating the values of certain entangled games. In the other direction, we give a simple quasipolynomial-time approximation algorithm for free games, and use it to prove that, assuming the ETH, our 3SAT protocol is essentially optimal. More generally, we show that multiple Merlins never provide more than a polynomial advantage over one: that is, AM(k)=AM for all k=poly(n). The key to this result is a subsampling theorem for free games, which follows from powerful results by Alon et al. and Barak et al. on subsampling dense CSPs, and which says that the value of any free game can be closely approximated by the value of a logarithmic-sized random subgame.

  11. Incoherence and multiple parton interactions

    SciTech Connect (OSTI)

    Calucci, G.; Treleani, D. [Dipartimento di Fisica Teorica dell'Universita di Trieste and INFN, Sezione di Trieste, Strada Costiera 11, Miramare-Grignano, I-34151 Trieste (Italy)

    2009-09-01T23:59:59.000Z

    At the LHC multiple parton interactions will represent an important feature of the minimum bias and of the underlying event, and will give important contributions in many channels of interest in the search for new physics. Different numbers of multiple collisions may contribute to the production of a given final state, and one should expect important interference effects in the regime where different contributions have similar rates. We show, on the contrary, that, once multiple parton interactions are identified by their different topologies, terms with different numbers of multiple parton interactions do not interfere in the final cross section.

  12. May 20, 2010 Dr. Fred Hartmeister, Dean

    E-Print Network [OSTI]

    Rock, Chris

    in Geosciences. What follows is the Geosciences response to the report and the outcome of the assessment meeting. However, our loads are determined by student demand, and our increased enrollments provide less Plan, with specific focus on strategic hiring, graduate student recruitment and retention. 7. Continue

  13. 18 October 2002 From: Fred Heutte

    E-Print Network [OSTI]

    features, among many, that deserve attention. The first is that it places energy production and use fully of the Act's requirement to integrate electric energy production and our environment. Regional Scope for New

  14. PMOS Revisited Fred Brown and Dave Munro

    E-Print Network [OSTI]

    Munro, David S.

    Object Space, PMOS, garbage collection algorithm is designed to incrementally collect all garbage of garbage into small enough units so that disruption to the running system is insignificant. PMOS is able to collect the small units in arbitrary orders whilst eliminating cyclic garbage and being able to guarantee

  15. Curriculum Vita for Fred W. Huffer

    E-Print Network [OSTI]

    of the Scan Statis- tic Using Moments of the Number of Clumps, Journal of the American Statistical Association, Department of Statistics, Florida State University 8/88­8/02 Associate Professor, Department of Statistics Statistical Association 86, 114-129 (1991). Wu, H., and Huffer, F. W. Modeling the Distribution of Plant

  16. From Quarks to Real Life Fred Jegerlehner

    E-Print Network [OSTI]

    Röder, Beate

    ) Atom 10-8 10-4 e.m., QED Nucleus, Electron 10-12 10-3 nuclear power Hadrons: Proton, Neutron 10 photon with charged particles, electrons,.... e+ e- Abelian theory U(1) phase transformations F only, color singlets, color unobservable! « Confinement QUARKS are permanently confined inside HADRONS

  17. Fred L. Brown | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 RussianBy: Thomas P. D'Agostino, Undersecretary forCITIFormatSLACWith the

  18. fred andreas | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind Home Rmckeel's Home Kyoung'sandreas Home Dc's

  19. FRED Overview Slides | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives and Policies |FPEFRFRED

  20. FRee Energy Data (FRED) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: EnergyExolis Energy JumpFAC 04-08-DOE GTP)

  1. OpenEI Community - fred andreas

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcernsCompany Oil and GasOff<div/0 en The Energy

  2. Fred C. Hartman | ornl.gov

    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) Environmental Assessments (EA)Budget(DANCE) TargetFormsTrouble Shooting

  3. Multiple stage railgun

    DOE Patents [OSTI]

    Hawke, Ronald S. (Livermore, CA); Scudder, Jonathan K. (Pleasanton, CA); Aaland, Kristian (Livermore, CA)

    1982-01-01T23:59:59.000Z

    A multiple stage magnetic railgun accelerator (10) for accelerating a projectile (15) by movement of a plasma arc (13) along the rails (11,12). The railgun (10) is divided into a plurality of successive rail stages (10a-n) which are sequentially energized by separate energy sources (14a-n) as the projectile (15) moves through the bore (17) of the railgun (10). Propagation of energy from an energized rail stage back towards the breech end (29) of the railgun (10) can be prevented by connection of the energy sources (14a-n) to the rails (11,12) through isolation diodes (34a-n). Propagation of energy from an energized rail stage back towards the breech end of the railgun can also be prevented by dividing the rails (11,12) into electrically isolated rail sections (11a-n, 12a-n). In such case means (55a-n) are used to extinguish the arc at the end of each energized stage and a fuse (31) or laser device (61) is used to initiate a new plasma arc in the next energized rail stage.

  4. Scaling the Web Scaling Web Sites

    E-Print Network [OSTI]

    Menascé, Daniel A.

    Scaling the Web Scaling Web Sites Through Caching A large jump in a Web site's traffic may indi, pushing the site's through- put to its maximum point. When a Web site becomes overloaded, cus- tomers grow-generated revenue and may even tarnish the reputation of organizations relying on Web sites to support mission

  5. Large-Scale Urban Modeling by Combining Ground Level Panoramic and Aerial Imagery

    E-Print Network [OSTI]

    Shahabi, Cyrus

    building or part of a build- ing. Due to error propagation, they are difficult to scale up to model aerial image, we can identify the footprints(up to a common scale) of the buildings, in- cluding of multiple tall buildings. Existing methods for large-scale modeling mostly de- pend on remote sensing

  6. Multiple-beam laser–plasma interactions in inertial confinement fusion

    SciTech Connect (OSTI)

    Myatt, J. F., E-mail: jmya@lle.rochester.edu; Zhang, J.; Maximov, A. V. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627 (United States); Short, R. W.; Seka, W.; Edgell, D. H.; Michel, D. T.; Igumenshchev, I. V. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Froula, D. H. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627-0171 (United States); Hinkel, D. E.; Michel, P.; Moody, J. D. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808 (United States)

    2014-05-15T23:59:59.000Z

    The experimental evidence for multiple-beam laser-plasma instabilities of relevance to laser driven inertial confinement fusion at the ignition scale is reviewed, in both the indirect and direct-drive approaches. The instabilities described are cross-beam energy transfer (in both indirectly driven targets on the NIF and in direct-drive targets), multiple-beam stimulated Raman scattering (for indirect-drive), and multiple-beam two-plasmon decay instability (in direct drive). Advances in theoretical understanding and in the numerical modeling of these multiple beam instabilities are presented.

  7. Modeling Multiple Causes of Carcinogenesis

    SciTech Connect (OSTI)

    Jones, T.D.

    1999-01-24T23:59:59.000Z

    An array of epidemiological results and databases on test animal indicate that risk of cancer and atherosclerosis can be up- or down-regulated by diet through a range of 200%. Other factors contribute incrementally and include the natural terrestrial environment and various human activities that jointly produce complex exposures to endotoxin-producing microorganisms, ionizing radiations, and chemicals. Ordinary personal habits and simple physical irritants have been demonstrated to affect the immune response and risk of disease. There tends to be poor statistical correlation of long-term risk with single agent exposures incurred throughout working careers. However, Agency recommendations for control of hazardous exposures to humans has been substance-specific instead of contextually realistic even though there is consistent evidence for common mechanisms of toxicological and carcinogenic action. That behavior seems to be best explained by molecular stresses from cellular oxygen metabolism and phagocytosis of antigenic invasion as well as breakdown of normal metabolic compounds associated with homeostatic- and injury-related renewal of cells. There is continually mounting evidence that marrow stroma, comprised largely of monocyte-macrophages and fibroblasts, is important to phagocytic and cytokinetic response, but the complex action of the immune process is difficult to infer from first-principle logic or biomarkers of toxic injury. The many diverse database studies all seem to implicate two important processes, i.e., the univalent reduction of molecular oxygen and breakdown of aginuine, an amino acid, by hydrolysis or digestion of protein which is attendant to normal antigen-antibody action. This behavior indicates that protection guidelines and risk coefficients should be context dependent to include reference considerations of the composite action of parameters that mediate oxygen metabolism. A logic of this type permits the realistic common-scale modeling of multiple causes of carcinogenesis and shifts the risk-assessment logic to considerations of ?what dose does?? in contrast to the current process of the substance-specific question of ?what dose is?? Whether reactive oxygen is the proximate or contributing cause of disease or simply a better estimate of biologically effective dose, it has enormous advantages for improved risk- and policy-based decisions. Various estimates of immune system modulation will be given based on radiobiology.

  8. Robot calibration without scaling

    E-Print Network [OSTI]

    Ives, Thomas W.

    1995-01-01T23:59:59.000Z

    methods. Scaling is a common way of improving the condition number for a matrix. Researchers in other fields have developed specific methods of scaling matrices to improve the condition number. However, robotics researchers have not specifically addressed...

  9. Quantum-enhanced metrology for multiple phase estimation with noise

    E-Print Network [OSTI]

    Jie-Dong Yue; Yu-Ran Zhang; Heng Fan

    2014-08-10T23:59:59.000Z

    We present a general framework to study the simultaneous estimation of multiple phases in the presence of noise as a discretized model for phase imaging. This approach can lead to nontrivial bounds of the precision for multiphase estimation. Our results show that simultaneous estimation (SE) of multiple phases is always better than individual estimation (IE) of each phase even in noisy environment. However with $d$ being the number of phases, the $O(d)$ advantage in the variance of the estimation, with which SE outperforms IE schemes for noiseless processes, may disappear asymptotically. When noise is low, those bounds recover the Heisenberg scale with the $O(d)$ advantage. The utility of the bound of multiple phase estimation for photon loss channels is exemplified.

  10. Multiple hypothesis evaluation in auditing

    E-Print Network [OSTI]

    Srivastava, Rajendra P.; Wright, Arnold; Mock, Theodore J.

    2002-11-01T23:59:59.000Z

    , unidentified causes may have led to the fluctuation. A widely accepted approach for modeling multiple hypotheses is to employ a probabilistic revision process (Winterfeldt and Edwards 1986; Winkler and Hays 1975; Luce and Raiffa, 1957). Probability theory...

  11. V-092: Pidgin Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities have been reported in Pidgin, which can be exploited by malicious people to manipulate certain data, cause a DoS (Denial of Service), and compromise a user's system.

  12. Multiple Motivations Institutional Change Principle

    Broader source: Energy.gov [DOE]

    The multiple motivations principle suggests that a portfolio approach—rather than a single strategy—may be required to achieve change. Research demonstrates that people and institutions adopt new...

  13. Sequence labeling with multiple annotators

    E-Print Network [OSTI]

    Rodrigues, Filipe

    The increasingly popular use of Crowdsourcing as a resource to obtain labeled data has been contributing to the wide awareness of the machine learning community to the problem of supervised learning from multiple annotators. ...

  14. Interacting Multiple Model Kalman Filters (IMMKF) Interacting Multiple Model Kalman Filters

    E-Print Network [OSTI]

    Williams, Brian C.

    Interacting Multiple Model Kalman Filters (IMMKF) Interacting Multiple Model Kalman Filters (IMMKF R.Q.A. Santana Interacting Multiple Model Kalman Filters (IMMKF) #12;Interacting Multiple Model Kalman Filters (IMMKF) Sumário 1 Introdução Abordagens de múltiplos modelos Introdução ao Interacting

  15. CRITICAL INFRASTRUCTURE PROTECTION Multiple Efforts to Secure...

    Energy Savers [EERE]

    CRITICAL INFRASTRUCTURE PROTECTION Multiple Efforts to Secure Control Systems Are Under Way, but Challenges Remain CRITICAL INFRASTRUCTURE PROTECTION Multiple Efforts to Secure...

  16. Silica Scaling Removal Process

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

    sidestreams of cooling tower water by providing a substrate for the deposition and adsorption of silica. The removal of the silica prevents scaling deposition on heat transfer...

  17. Pore Scale Micromodels | EMSL

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

    of EMSL's Subsurface Flow and Transport Laboratory (SFTL) with a focus on coupled (multiphase) flow, diffusion, and reactions processes at the microscopic scale (m to cm) that...

  18. Thermodynamics and scale relativity

    E-Print Network [OSTI]

    Robert Carroll

    2011-10-13T23:59:59.000Z

    It is shown how the fractal paths of scale relativity (following Nottale) can be introduced into a thermodynamical context (following Asadov-Kechkin).

  19. Scaling of Lyapunov exponents in chaotic delay systems

    E-Print Network [OSTI]

    Thomas Jüngling; Wolfgang Kinzel

    2012-10-12T23:59:59.000Z

    The scaling behavior of the maximal Lyapunov exponent in chaotic systems with time-delayed feedback is investigated. For large delay times it has been shown that the delay-dependence of the exponent allows a distinction between strong and weak chaos, which are the analogy to strong and weak instability of periodic orbits in a delay system. We find significant differences between scaling of exponents in periodic or chaotic systems. We show that chaotic scaling is related to fluctuations in the linearized equations of motion. A linear delay system including multiplicative noise shows the same properties as the deterministic chaotic systems.

  20. Multiple reflection solar energy absorber

    SciTech Connect (OSTI)

    Cooley, W.L.

    1993-06-01T23:59:59.000Z

    A method of converting solar energy into heat energy thereby generating power is described comprising the steps: (a) focusing said solar energy by means of a primary concentrator, (b) concentrating said solar energy from said primary concentrator by means of a secondary concentrator located at the focal point of said primary concentrator, (c) slowing the flux of said solar energy from said secondary concentrator by means of a multiple reflection chamber attached to the rear aperture of the secondary concentrator, (d) circulating a working fluid by means of a working fluid delivery tube into said secondary concentrator and said multiple reflection chamber, (e) absorbing said solar energy into said working fluid by means of an ultra high concentration of said solar energy in said multiple reflection chamber, (f) insulating said working fluid by means of a surrounding thermal barrier, (g) exhausting the heat working fluid by means as of a nozzle joined to said multiple reflection chamber, (h) replacing said working fluid by means of a working fluid delivery tube, thereby completing a cycle for generating power.

  1. 6, 81258154, 2006 Multiple scattering

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 6, 8125­8154, 2006 Multiple scattering effects for Cloudsat A. Battaglia et al. Title Page A. Battaglia1 , M. O. Ajewole2 , and C. Simmer3 1 Meteorological Institute, University of Bonn, Bonn: 28 August 2006 Correspondence to: A. Battaglia (batta@uni-bonn.de) 8125 #12;ACPD 6, 8125­8154, 2006

  2. Report of the Workshop on Petascale Systems Integration for Large Scale Facilities

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    ­ Howard Walter (NERSC), Gary New (NCAR) Group 2 - Tom Engle (NCAR), Rob Pennington (NCSA) Group 3 - Brad Bailey, Ray Bair, Ann Baker, Robert Ballance, Jeff Becklehimer, Tom Bettge, Richard Blake, Buddy Bland, Dan Hitchcock, Wayne Hoyenga, Fred Johnson, Gary Jung, Jim Kasdorf, Chulho Kim, Patricia Kovatch

  3. Spatial Interference Mitigation for Multiple Input Multiple Output Ad Hoc Networks: MISO Gains

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Spatial Interference Mitigation for Multiple Input Multiple Output Ad Hoc Networks: MISO Gains beamforming for a multiple input single output (MISO) ad hoc network to increase the density of successful

  4. Towards Automatic Incorporation of Search engines into a Large-Scale Metasearch Engine

    E-Print Network [OSTI]

    Meng, Weiyi

    Towards Automatic Incorporation of Search engines into a Large-Scale Metasearch Engine Zonghuan Wu. of Computer Science Univ. of Illinois at Chicago yu@cs.uic.edu Abstract A metasearch engine supports unified access to multiple component search engines. To build a very large-scale metasearch engine that can

  5. Large scale disease prediction

    E-Print Network [OSTI]

    Schmid, Patrick R. (Patrick Raphael)

    2008-01-01T23:59:59.000Z

    The objective of this thesis is to present the foundation of an automated large-scale disease prediction system. Unlike previous work that has typically focused on a small self-contained dataset, we explore the possibility ...

  6. FORESTRY 347 MULTIPLE RESOURCE SILVICULTURE

    E-Print Network [OSTI]

    Vonessen, Nikolaus

    FORESTRY 347 MULTIPLE RESOURCE SILVICULTURE Autumn 2008 Instructor: John Goodburn Office: Rm. 409 Science Complex Telephone: 243-4295 Email: goodburn@forestry.umt.edu Office hours: Mon. 3:00 - 5:00 pm.m. Rm. 301 Forestry Bldg. Lab/Field Work Wed or Thur. 2:10 - 6:00 p.m. In Field or Rm. 106 (W) & 206(H

  7. Multiple target laser ablation system

    DOE Patents [OSTI]

    Mashburn, Douglas N. (Knoxville, TN)

    1996-01-01T23:59:59.000Z

    A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film.

  8. Multiple target laser ablation system

    DOE Patents [OSTI]

    Mashburn, D.N.

    1996-01-09T23:59:59.000Z

    A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film. 3 figs.

  9. On Multiple Gluon Exchange Webs

    E-Print Network [OSTI]

    Mark Harley

    2015-05-21T23:59:59.000Z

    I present an overview of the study of infrared singularities through the eikonal approximation and the concept of webs. Our work reveals the interesting structure of an infinite subclass of webs, Multiple Gluon Exchange Webs. We find that they can be expressed as sums of products of functions depending upon only a single cusp angle, spanned by a simple basis of functions, and conjecture that this structure will hold to all orders.

  10. The Improbability scale

    SciTech Connect (OSTI)

    Ritchie, David J.; /Fermilab

    2005-03-01T23:59:59.000Z

    The Improbability Scale (IS) is proposed as a way of communicating to the general public the improbability (and by implication, the probability) of events predicted as the result of scientific research. Through the use of the Improbability Scale, the public will be able to evaluate more easily the relative risks of predicted events and draw proper conclusions when asked to support governmental and public policy decisions arising from that research.

  11. Multiple sequence alignment Robert C Edgar1

    E-Print Network [OSTI]

    Batzoglou, Serafim

    Multiple sequence alignment Robert C Edgar1 and Serafim Batzoglou2 Multiple sequence alignments-9025, USA Corresponding author: Edgar, Robert C (bob@drive5.com) Current Opinion in Structural Biology 2006

  12. The in-situ decontamination of sand and gravel aquifers by chemically enhanced solubilization of multiple-compound DNAPLs with surfactant solutions: Phase 1 -- Laboratory and pilot field-scale testing and Phase 2 -- Solubilization test and partitioning and interwell tracer tests. Final report

    SciTech Connect (OSTI)

    NONE

    1997-10-24T23:59:59.000Z

    Laboratory, numerical simulation, and field studies have been conducted to assess the potential use of micellar-surfactant solutions to solubilize chlorinated solvents contaminating sand and gravel aquifers. Ninety-nine surfactants were screened for their ability to solubilize trichloroethene (TCE), perchloroethylene (PCE), and carbon tetrachloride (CTET). The field test was conducted in the alluvial aquifer which is located 20 to 30 meters beneath a vapor degreasing operation at Paducah Gaseous Diffusion Plant. This aquifer has become contaminated with TCE due to leakage of perhaps 40,000 liters of TCE, which has generated a plume of dissolved TCE extending throughout an area of approximately 3 km{sup 2} in the aquifer. Most of the TCE is believed to be present in the overlying lacustrine deposits and in the aquifer itself as a dense, non-aqueous phase liquid, or DNAPL. The objective of the field test was to assess the efficacy of the surfactant for in situ TCE solubilization. Although the test demonstrated that sorbitan monooleate was unsuitable as a solubilizer in this aquifer, the single-well test was demonstrated to be a viable method for the in situ testing of surfactants or cosolvents prior to proceeding to full-scale remediation.

  13. Multiple Sequence Alignments BIOC 218 Final Project

    E-Print Network [OSTI]

    Multiple Sequence Alignments BIOC 218 Final Project Amy Zou Multiple sequence alignments (MSAs relationship between the different sequences, and can give information pertinent to phylogenetic analysis, it is inefficient to use to generate an alignment for multiple sequences. Because the computational complexity

  14. Geospatial Optimization of Siting Large-Scale Solar Projects

    SciTech Connect (OSTI)

    Macknick, J.; Quinby, T.; Caulfield, E.; Gerritsen, M.; Diffendorfer, J.; Haines, S.

    2014-03-01T23:59:59.000Z

    Recent policy and economic conditions have encouraged a renewed interest in developing large-scale solar projects in the U.S. Southwest. However, siting large-scale solar projects is complex. In addition to the quality of the solar resource, solar developers must take into consideration many environmental, social, and economic factors when evaluating a potential site. This report describes a proof-of-concept, Web-based Geographical Information Systems (GIS) tool that evaluates multiple user-defined criteria in an optimization algorithm to inform discussions and decisions regarding the locations of utility-scale solar projects. Existing siting recommendations for large-scale solar projects from governmental and non-governmental organizations are not consistent with each other, are often not transparent in methods, and do not take into consideration the differing priorities of stakeholders. The siting assistance GIS tool we have developed improves upon the existing siting guidelines by being user-driven, transparent, interactive, capable of incorporating multiple criteria, and flexible. This work provides the foundation for a dynamic siting assistance tool that can greatly facilitate siting decisions among multiple stakeholders.

  15. PAN-on-Demand: Leveraging multiple radios to build self-organizing, energy-efficient PANs

    E-Print Network [OSTI]

    Flinn, Jason

    , it adapts the network struc- ture to minimize energy usage. Our results show that PAN-on- Demand reducesPAN-on-Demand: Leveraging multiple radios to build self-organizing, energy-efficient PANs Manish- area network (PAN) that balances performance and energy con- cerns by scaling the structure

  16. Performance of Multiple Corrosion Protection Systems for Reinforced Concrete Bridge Decks

    E-Print Network [OSTI]

    O'Reilly, Matt

    2011-01-18T23:59:59.000Z

    calcium nitrite primer, multiple-coated reinforcement with a layer of zinc between the epoxy and steel, and pickled 2205 duplex stainless steel. The systems are evaluated using bench-scale and field tests. Two bridges in Kansas, cast with 2205 stainless...

  17. Caustics in special multiple lenses

    E-Print Network [OSTI]

    V. Bozza

    2000-01-13T23:59:59.000Z

    Despite its mathematical complexity, the multiple gravitational lens can be studied in detail in every situation where a perturbative approach is possible. In this paper, we examine the caustics of a system with a lens very far from the others with respect to their Einstein radii, and a system where mutual distances between lenses are small compared to the Einstein radius of the total mass. Finally we review the case of a planetary system adding some new information (area of caustics, duality and higher order terms).

  18. Multiple piece turbine rotor blade

    DOE Patents [OSTI]

    Jones, Russell B; Fedock, John A

    2013-05-21T23:59:59.000Z

    A multiple piece turbine rotor blade with a shell having an airfoil shape and secured between a spar and a platform with the spar including a tip end piece. a snap ring fits around the spar and abuts against the spar tip end piece on a top side and abuts against a shell on the bottom side so that the centrifugal loads from the shell is passed through the snap ring and into the spar and not through a tip cap dovetail slot and projection structure.

  19. Angular Scaling In Jets

    SciTech Connect (OSTI)

    Jankowiak, Martin; Larkoski, Andrew J.; /SLAC

    2012-02-17T23:59:59.000Z

    We introduce a jet shape observable defined for an ensemble of jets in terms of two-particle angular correlations and a resolution parameter R. This quantity is infrared and collinear safe and can be interpreted as a scaling exponent for the angular distribution of mass inside the jet. For small R it is close to the value 2 as a consequence of the approximately scale invariant QCD dynamics. For large R it is sensitive to non-perturbative effects. We describe the use of this correlation function for tests of QCD, for studying underlying event and pile-up effects, and for tuning Monte Carlo event generators.

  20. Global Scale Impacts

    E-Print Network [OSTI]

    Asphaug, Erik; Jutzi, Martin

    2015-01-01T23:59:59.000Z

    Global scale impacts modify the physical or thermal state of a substantial fraction of a target asteroid. Specific effects include accretion, family formation, reshaping, mixing and layering, shock and frictional heating, fragmentation, material compaction, dilatation, stripping of mantle and crust, and seismic degradation. Deciphering the complicated record of global scale impacts, in asteroids and meteorites, will lead us to understand the original planet-forming process and its resultant populations, and their evolution in time as collisions became faster and fewer. We provide a brief overview of these ideas, and an introduction to models.

  1. Multiple systems or task complexity 1 Running head: Multiple systems or task complexity

    E-Print Network [OSTI]

    Stoiciu, Mihai

    Multiple systems or task complexity 1 Running head: Multiple systems or task complexity Procedural memory effects in categorization: evidence for multiple systems or task complexity? Safa R. Zaki and Dave College Williamstown, MA 10267 413-597-4594 Email: szaki@williams.edu #12;Multiple systems or task

  2. Multiple protocol fluorometer and method

    DOE Patents [OSTI]

    Kolber, Zbigniew S. (Shoreham, NY); Falkowski, Paul G. (Stony Brook, NY)

    2000-09-19T23:59:59.000Z

    A multiple protocol fluorometer measures photosynthetic parameters of phytoplankton and higher plants using actively stimulated fluorescence protocols. The measured parameters include spectrally-resolved functional and optical absorption cross sections of PSII, extent of energy transfer between reaction centers of PSII, F.sub.0 (minimal), F.sub.m (maximal) and F.sub.v (variable) components of PSII fluorescence, photochemical and non-photochemical quenching, size of the plastoquinone (PQ) pool, and the kinetics of electron transport between Q.sub.a and PQ pool and between PQ pool and PSI. The multiple protocol fluorometer, in one embodiment, is equipped with an excitation source having a controlled spectral output range between 420 nm and 555 nm and capable of generating flashlets having a duration of 0.125-32 .mu.s, an interval between 0.5 .mu.s and 2 seconds, and peak optical power of up to 2 W/cm.sup.2. The excitation source is also capable of generating, simultaneous with the flashlets, a controlled continuous, background illumination.

  3. Multiple channel data acquisition system

    DOE Patents [OSTI]

    Crawley, H. Bert (Ames, IA); Rosenberg, Eli I. (Ames, IA); Meyer, W. Thomas (Ames, IA); Gorbics, Mark S. (Ames, IA); Thomas, William D. (Boone, IA); McKay, Roy L. (Ames, IA); Homer, Jr., John F. (Ames, IA)

    1990-05-22T23:59:59.000Z

    A multiple channel data acquisition system for the transfer of large amounts of data from a multiplicity of data channels has a plurality of modules which operate in parallel to convert analog signals to digital data and transfer that data to a communications host via a FASTBUS. Each module has a plurality of submodules which include a front end buffer (FEB) connected to input circuitry having an analog to digital converter with cache memory for each of a plurality of channels. The submodules are interfaced with the FASTBUS via a FASTBUS coupler which controls a module bus and a module memory. The system is triggered to effect rapid parallel data samplings which are stored to the cache memories. The cache memories are uploaded to the FEBs during which zero suppression occurs. The data in the FEBs is reformatted and compressed by a local processor during transfer to the module memory. The FASTBUS coupler is used by the communications host to upload the compressed and formatted data from the module memory. The local processor executes programs which are downloaded to the module memory through the FASTBUS coupler.

  4. Multiple channel data acquisition system

    DOE Patents [OSTI]

    Crawley, H.B.; Rosenberg, E.I.; Meyer, W.T.; Gorbics, M.S.; Thomas, W.D.; McKay, R.L.; Homer, J.F. Jr.

    1990-05-22T23:59:59.000Z

    A multiple channel data acquisition system for the transfer of large amounts of data from a multiplicity of data channels has a plurality of modules which operate in parallel to convert analog signals to digital data and transfer that data to a communications host via a FASTBUS. Each module has a plurality of submodules which include a front end buffer (FEB) connected to input circuitry having an analog to digital converter with cache memory for each of a plurality of channels. The submodules are interfaced with the FASTBUS via a FASTBUS coupler which controls a module bus and a module memory. The system is triggered to effect rapid parallel data samplings which are stored to the cache memories. The cache memories are uploaded to the FEBs during which zero suppression occurs. The data in the FEBs is reformatted and compressed by a local processor during transfer to the module memory. The FASTBUS coupler is used by the communications host to upload the compressed and formatted data from the module memory. The local processor executes programs which are downloaded to the module memory through the FASTBUS coupler. 25 figs.

  5. STOMP Subsurface Transport Over Multiple Phases: Application guide

    SciTech Connect (OSTI)

    Nichols, W.E.; Aimo, N.J.; Oostrom, M.; White, M.D.

    1997-09-01T23:59:59.000Z

    The U.S. Department of Energy (DOE), through the Office of Technology Development, has requested the demonstration of remediation technologies for the cleanup of volatile organic compounds and associated radionuclides within the soil and ground water at arid sites. This demonstration program, called the VOC-Arid Soils Integrated Demonstrated Program (Arid-ID), has been initially directed at a volume of unsaturated and saturated soil contaminated with carbon tetrachloride on the Hanford Site near Richland, Washington. A principal subtask of the Arid-ID program involves the development of an integrated engineering simulator for evaluating the effectiveness and efficiency of various remediation technologies. The engineering simulator`s intended users include scientists and engineers who are investigating soil physics phenomena associated with remediation technologies. Principal design goals for the engineering simulator include broad applicability, verified algorithms, quality assurance controls, and validated simulations against laboratory and field-scale experiments. An important goal for the simulator development subtask involves the ability to scale laboratory and field-scale experiments to full-scale remediation technologies, and to transfer acquired technology to other arid sites. The STOMP (Subsurface Transport Over Multiple Phases) simulator has been developed by the Pacific Northwest Laboratory for modeling remediation technologies. Information on the use, application, and theoretical basis of the STOMP simulator are documented in three companion guide guides. This document, the Application Guide, provides a suite of example applications of the STOMP simulator.

  6. STOMP Subsurface Transport Over Multiple Phases: User`s guide

    SciTech Connect (OSTI)

    White, M.D.; Oostrom, M.

    1997-10-01T23:59:59.000Z

    The U.S. Department of Energy, through the Office of Technology Development, has requested the demonstration of remediation technologies for the cleanup of volatile organic compounds and associated radionuclides within the soil and groundwater at arid sites. This demonstration program, called the VOC-Arid Soils Integrated Demonstration Program (Arid-ID), has been initially directed at a volume of unsaturated and saturated soil contaminated with carbon tetrachloride, on the Hanford Site near Richland, Washington. A principal subtask of the Arid-ID program involves the development of an integrated engineering simulator for evaluating the effectiveness and efficiency of various remediation technologies. The engineering simulator`s intended users include scientists and engineers who are investigating soil physics phenomena associated with remediation technologies. Principal design goals for the engineer simulator include broad applicability, verified algorithms, quality assurance controls, and validated simulations against laboratory and field-scale experiments. An important goal for the simulator development subtask involves the ability to scale laboratory and field-scale experiments to full-scale remediation technologies, and to transfer acquired technology to other arid sites. The STOMP (Subsurface Transport Over Multiple Phases) simulator has been developed by the Pacific Northwest National Laboratory for modeling remediation technologies. Information on the use, application, and theoretical basis of the STOMP simulator theory and discussions on the governing equations, constitutive relations, and numerical solution algorithms for the STOMP simulator.

  7. PAIN SCALES (ATTACHMENT A)

    E-Print Network [OSTI]

    Oliver, Douglas L.

    TOTAL SCORE: ADD INDIVIDUAL ASSESSMENT SCORES TO DETERMINE THE TOTAL PAIN SCORE. TOTAL THE 5 CATEGORIES FOR TOTAL PAIN SCORE. MAXIMUM SCORE = 10/10. Reference: Merkel SJ, et al. The FLACC: A Behavioral Pain Scale or groan. Low level speech with a negative or disapproving quality. Repeated troubled calling out. Loud

  8. Mathematics Achievement Scale Score

    E-Print Network [OSTI]

    Huang, Jianyu

    Croatia 490 New Zealand 486 Spain 482 Romania 482 Poland 481 Turkey 469 Azerbaijan 463 Chile 462 Thailand Romania 505 Spain 505 Poland 505 TIMSS Scale Centerpoint 500 New Zealand 497 Kazakhstan 495 Norway 494 Kazakhstan 487 Sweden 484 Ukraine 479 Norway 475 Armenia 467 Romania 458 United Arab Emirates 456 Turkey 452

  9. Multiple-stage integrating accelerometer

    DOE Patents [OSTI]

    Devaney, H.F.

    1984-06-27T23:59:59.000Z

    An accelerometer assembly is provided for use in activating a switch in response to multiple acceleration pulses in series. The accelerometer includes a housing forming a chamber. An inertial mass or piston is slidably disposed in the chamber and spring biased toward a first or reset position. A damping system is also provided to damp piston movement in response to first and subsequent acceleration pulses. Additionally, a cam, including a Z-shaped slot, and cooperating follower pin slidably received therein are mounted to the piston and the housing. The middle or cross-over leg of the Z-shaped slot cooperates with the follower pin to block or limit piston movement and prevent switch activation in response to a lone acceleration pulse. The switch of the assembly is only activated after two or more separate acceleration pulses are sensed and the piston reaches the end of the chamber opposite the reset position.

  10. Multiple-stage integrating accelerometer

    DOE Patents [OSTI]

    Devaney, Howard F. (Cedar Crest, NM)

    1986-01-01T23:59:59.000Z

    An accelerometer assembly is provided for use in activating a switch in response to multiple acceleration pulses in series. The accelerometer includes a housing forming a chamber. An inertial mass or piston is slidably disposed in the chamber and spring biased toward a first or reset position. A damping system is also provided to damp piston movement in response to first and subsequent acceleration pulses. Additionally, a cam, including a Z-shaped slot, and cooperating follower pin slidably received therein are mounted to the piston and the housing. The middle or cross-over leg of the Z-shaped slot cooperates with the follower pin to block or limit piston movement and prevent switch activation in response to a lone acceleration pulse. The switch of the assembly is only activated after two or more separate acceleration pulses are sensed and the piston reaches the end of the chamber opposite the reset position.

  11. Extreme Scale Visual Analytics

    SciTech Connect (OSTI)

    Steed, Chad A [ORNL] [ORNL; Potok, Thomas E [ORNL] [ORNL; Pullum, Laura L [ORNL] [ORNL; Ramanathan, Arvind [ORNL] [ORNL; Shipman, Galen M [ORNL] [ORNL; Thornton, Peter E [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Given the scale and complexity of today s data, visual analytics is rapidly becoming a necessity rather than an option for comprehensive exploratory analysis. In this paper, we provide an overview of three applications of visual analytics for addressing the challenges of analyzing climate, text streams, and biosurveilance data. These systems feature varying levels of interaction and high performance computing technology integration to permit exploratory analysis of large and complex data of global significance.

  12. Supergranulation Scale Connection Simulations

    E-Print Network [OSTI]

    R. F. Stein; A. Nordlund; D. Georgobiani; D. Benson; W. Schaffenberger

    2008-11-04T23:59:59.000Z

    Results of realistic simulations of solar surface convection on the scale of supergranules (96 Mm wide by 20 Mm deep) are presented. The simulations cover only 10% of the geometric depth of the solar convection zone, but half its pressure scale heights. They include the hydrogen, first and most of the second helium ionization zones. The horizontal velocity spectrum is a power law and the horizontal size of the dominant convective cells increases with increasing depth. Convection is driven by buoyancy work which is largest close to the surface, but significant over the entire domain. Close to the surface buoyancy driving is balanced by the divergence of the kinetic energy flux, but deeper down it is balanced by dissipation. The damping length of the turbulent kinetic energy is 4 pressure scale heights. The mass mixing length is 1.8 scale heights. Two thirds of the area is upflowing fluid except very close to the surface. The internal (ionization) energy flux is the largest contributor to the convective flux for temperatures less than 40,000 K and the thermal energy flux is the largest contributor at higher temperatures. This data set is useful for validating local helioseismic inversion methods. Sixteen hours of data are available as four hour averages, with two hour cadence, at steinr.msu.edu/~bob/96averages, as idl save files. The variables stored are the density, temperature, sound speed, and three velocity components. In addition, the three velocity components at 200 km above mean continuum optical depth unity are available at 30 sec. cadence.

  13. Fermentation, Hydrogen, and Sulfur Metabolism in Multiple Uncultivated...

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

    Fermentation, Hydrogen, and Sulfur Metabolism in Multiple Uncultivated Bacterial Phyla. Fermentation, Hydrogen, and Sulfur Metabolism in Multiple Uncultivated Bacterial Phyla....

  14. Systems analysis of multiple regulator perturbations allows discoveryo...

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

    Systems analysis of multiple regulator perturbations allows discoveryof virulence factors in Salmonella. Systems analysis of multiple regulator perturbations allows discoveryof...

  15. Interested Parties - Multiple Loan Applications per Developer...

    Energy Savers [EERE]

    Documents & Publications Interested Parties - Allowing Multiple Projects per Application for Section 1705 Loan Guarantees Interested Parties - K&L Group Interested Parties - Shipp...

  16. Code design for multiple-input multiple-output broadcast channels

    E-Print Network [OSTI]

    Uppal, Momin Ayub

    2009-06-02T23:59:59.000Z

    Recent information theoretical results indicate that dirty-paper coding (DPC) achieves the entire capacity region of the Gaussian multiple-input multiple-output (MIMO) broadcast channel (BC). This thesis presents practical code designs for Gaussian...

  17. The San Jose Scale.

    E-Print Network [OSTI]

    Conradi, Albert F.

    1906-01-01T23:59:59.000Z

    for controlling the scale. The most important spray mixtures in use are lime-sulphur salt, lime-sulphur, whale oil soap, kero? sene, crude petroleum, Kero-water, and kerosene or crude oil emulsions. All these preparations are mainly winter sprays, being applied... applied while cold, however, it clogs the apparatus and causes considerable inconven? ience in getting it on the tree. It is more expensive than the Lime- Sulphur wash. i I o . B I 3 I 2 In some States coal oil or kerosene has been experimented...

  18. The San Jose Scale

    E-Print Network [OSTI]

    Conradi, Albert F.

    1906-01-01T23:59:59.000Z

    of which caused a violent cooking. After the lime had been slaked the salt was added ^ and the entire mixture violently boiled for 45 minutes, when it became a dark amber color. It was applied while hot. This ap? plication was made to peach trees... for controlling the scale. The most important spray mixtures in use are lime-sulphur salt, lime-sulphur, whale oil soap, kero? sene, crude petroleum, Kero-water, and kerosene or crude oil emulsions. All these preparations are mainly winter sprays, being applied...

  19. Megawatt Electrolysis Scale Up

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment3311, 3312), OctoberMay 18-19, 2004MW Electrolysis Scale Up E

  20. Concatenated codes for the multiple-input multiple-output quasi-static fading channel

    E-Print Network [OSTI]

    Gulati, Vivek

    2005-02-17T23:59:59.000Z

    CONCATENATED CODES FOR THE MULTIPLE-INPUT MULTIPLE-OUTPUT QUASI-STATIC FADING CHANNEL A Dissertation by VIVEK GULATI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of DOCTOR OF PHILOSOPHY December 2004 Major Subject: Electrical Engineering CONCATENATED CODES FOR THE MULTIPLE-INPUT MULTIPLE-OUTPUT QUASI-STATIC FADING CHANNEL A Dissertation by VIVEK GULATI Submitted to Texas A&M University in partial fulfillment...

  1. Multiple criteria minimum spanning trees Pedro Cardoso

    E-Print Network [OSTI]

    Coello, Carlos A. Coello

    Multiple criteria minimum spanning trees Pedro Cardoso M´ario Jesus ´Alberto M´arquez Abstract The NP multiple criteria minimum spanning tree as several applications into the network design problems criteria minimum spanning trees. There are several geometric network design and application problems

  2. Dynamic Behavior of Multiple Inversions Senior Thesis

    E-Print Network [OSTI]

    Popovic, Jovan

    Dynamic Behavior of Multiple Inversions Ilya Baran Senior Thesis Boston University Academy Under functions. To iterate a function means to compose it with itself multiple times. Unless stated otherwise, we a circle centered at O with radius r is a point A 0 on the ray \\Gamma! OA such that OA r = r OA 0 (see

  3. Multiple-Source and Multiple-Destination Charge Migration in Hybrid Electrical Energy Storage Systems*

    E-Print Network [OSTI]

    Pedram, Massoud

    Multiple-Source and Multiple-Destination Charge Migration in Hybrid Electrical Energy Storage massimo.poncino@polito.it Abstract-- Hybrid electrical energy storage (HEES) systems consist of multiple banks of heterogeneous electrical energy storage (EES) elements that are connected to each other through

  4. Microstructural parameters from Multiple Whole Profile (MWP) or Convolutional Multiple Whole Profile

    E-Print Network [OSTI]

    Balzar, Davor

    Microstructural parameters from Multiple Whole Profile (MWP) or Convolutional Multiple Whole Profile (CMWP) computer programs 54th Annual Denver X-ray Conference Line Profile Analysis Workshop system, 2) hexagonal crystal system, 4) MWP (Multiple Whole Profile Fitting), 5) CMWP (Convolutional

  5. Modeling basin- and plume-scale processes of CO2 storage for full-scale deployment

    SciTech Connect (OSTI)

    Zhou, Q.; Birkholzer, J.T.; Mehnert, E.; Lin, Y.-F.; Zhang, K.

    2009-08-15T23:59:59.000Z

    Integrated modeling of basin- and plume-scale processes induced by full-scale deployment of CO{sub 2} storage was applied to the Mt. Simon Aquifer in the Illinois Basin. A three-dimensional mesh was generated with local refinement around 20 injection sites, with approximately 30 km spacing. A total annual injection rate of 100 Mt CO{sub 2} over 50 years was used. The CO{sub 2}-brine flow at the plume scale and the single-phase flow at the basin scale were simulated. Simulation results show the overall shape of a CO{sub 2} plume consisting of a typical gravity-override subplume in the bottom injection zone of high injectivity and a pyramid-shaped subplume in the overlying multilayered Mt. Simon, indicating the important role of a secondary seal with relatively low-permeability and high-entry capillary pressure. The secondary-seal effect is manifested by retarded upward CO{sub 2} migration as a result of multiple secondary seals, coupled with lateral preferential CO{sub 2} viscous fingering through high-permeability layers. The plume width varies from 9.0 to 13.5 km at 200 years, indicating the slow CO{sub 2} migration and no plume interference between storage sites. On the basin scale, pressure perturbations propagate quickly away from injection centers, interfere after less than 1 year, and eventually reach basin margins. The simulated pressure buildup of 35 bar in the injection area is not expected to affect caprock geomechanical integrity. Moderate pressure buildup is observed in Mt. Simon in northern Illinois. However, its impact on groundwater resources is less than the hydraulic drawdown induced by long-term extensive pumping from overlying freshwater aquifers.

  6. Multiple-Scale Stabilized Finite Elements for the Simulation of Tracer Injections and Waterflood

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    and Waterflood Ruben Juanes1 , SPE, and Tadeusz W. Patzek1,2 , SPE Copyright 2002, Society of Petroleum Engineers Recovery held in Tulsa, Oklahoma, 13-17 April 2002. This paper was selected for presentation by an SPE) and waterflood (immiscible flow) are 1Civil and Environmental Engineering. U.C. Berkeley. 2Earth Sciences

  7. Analysis of Wind Power and Load Data at Multiple Time Scales

    E-Print Network [OSTI]

    Coughlin, Katie

    2011-01-01T23:59:59.000Z

    2008. Analysis of Wind Generation Impact on ERCOT Ancillarythe integration of wind generation. Analysis of Wind Powerwind is far more similar to load than to conventional generation

  8. Analysis of Wind Power and Load Data at Multiple Time Scales

    E-Print Network [OSTI]

    Coughlin, Katie

    2011-01-01T23:59:59.000Z

    Wan, Yih-Huei. 2004. Wind Power Plant Behaviors: Analyses ofthe output of wind power plants. In a typical studyfluctuations across wind power plants located in the same

  9. Methods and analysis of genome-scale gene family evolution across multiple species

    E-Print Network [OSTI]

    Rasmussen, Matthew D. (Matthew David)

    2010-01-01T23:59:59.000Z

    The fields of genomics and evolution have continually benefited from one another in their common goal of understanding the biological world. This partnership has been accelerated by ever increasing sequencing and high-throughput ...

  10. Community assembly of xeric-adapted anurans at multiple spatial scales

    E-Print Network [OSTI]

    Dayton, Gage Hart

    2006-04-12T23:59:59.000Z

    -breeding anurans. 5) Examine the role that aquatic predators play in influencing growth, development, survivorship, and distribution of Scaphiopus couchii. Study System My study was conducted in the Big Bend Region of the Chihuahua Desert. The majority...

  11. Analysis of Wind Power and Load Data at Multiple Time Scales

    E-Print Network [OSTI]

    Coughlin, Katie

    2011-01-01T23:59:59.000Z

    Huei. 2005. Primer on Wind Power for Utility Applications.Wan, Yih-Huei. 2004. Wind Power Plant Behaviors: Analysesof Long-Term Wind Power Data. National Renewable Energy Lab

  12. Analysis of Wind Power and Load Data at Multiple Time Scales

    E-Print Network [OSTI]

    Coughlin, Katie

    2011-01-01T23:59:59.000Z

    The spectrum of power from wind turbines. Journal of PowerAWEA 2010. American Wind Energy Association ProjectsErik and Jason Kemper. 2009. Wind Plant Ramping Behavior.

  13. Hierarchy of multiple many-body interaction scales in high-temperature superconductors

    E-Print Network [OSTI]

    Meevasana, W.

    2008-01-01T23:59:59.000Z

    in high-temperature superconductors W. Meevasana,l,* X.J.four families of high-? : superconductors over a wide dopingactions in high-fl superconductors makes it difficult to

  14. Possible scaling behaviour of the multiplicities ratio in leptoproduction of charged pions in nuclear medium

    E-Print Network [OSTI]

    Akopov, N; Akopov, Z

    2008-01-01T23:59:59.000Z

    In this paper it is demonstrated that based on two-dimensional distributions in semi-inclusive deep inelastic scattering (SIDIS) data, obtained recently by the HERMES experiment at DESY on different nuclei, which contains data for charged pions produced in $z$ slices as a function of $\

  15. Possible scaling behaviour of the multiplicities ratio in leptoproduction of charged pions in nuclear medium

    E-Print Network [OSTI]

    N. Akopov; L. Grigoryan; Z. Akopov

    2008-10-27T23:59:59.000Z

    In this paper it is demonstrated that based on two-dimensional distributions in semi-inclusive deep inelastic scattering (SIDIS) data, obtained recently by the HERMES experiment at DESY on different nuclei, which contains data for charged pions produced in $z$ slices as a function of $\

  16. Bringing large-scale multiple genome analysis one step closer: ScalaBLAST and beyond

    E-Print Network [OSTI]

    Oehmen, Christopher S.

    2009-01-01T23:59:59.000Z

    Laboratory (PNNL), 902 Battelle Boulevard, P.O. Box 999,Laboratory (PNNL), 902 Battelle Boulevard, P.O. Box 999,laboratory operated by Battelle for the U.S. Department of

  17. High Temperature Thermoelectric Oxides Engineered At Multiple Length Scales For Energy Harvesting

    SciTech Connect (OSTI)

    Ohuchi, Fumio; Bordia, Rajendra

    2014-12-20T23:59:59.000Z

    Thermoelectric aspects of the processing parameters the n-type relaxors, including SrxBa1- xNb2O6 (SBN100x), Sr2Nb2O7 (SN) and SrBi2Nb2O9 (SBiN), were investigated. A solution combustion synthesis (SCS) route was devised to fabricate SBN, SN and SBiN nanoparticles with excellent phase purity. X-ray photoelectron spectroscopy (XPS) was used to deduce the local cation site occupancy, and detailed thermoelectric transport processes were investigated. Based on the identified behavior, effectiveness of pore formers on the thermoelectric performance was investigated with the goal of decreasing ? through enhanced phonon scattering while preserving the electron transport characteristics.

  18. Prediction of communication delay in torus networks under multiple time-scale correlated traffic

    E-Print Network [OSTI]

    Min, G.; Ould-Khaoua, M.

    Min,G. Ould-Khaoua,M. Performance Evaluation: An International Journal, vol. 60, no 1-4, May 2005 pp 255â??273 Elsevier Science

  19. Sparse Matrix Multiplications for Linear Scaling Electronic Structure Calculations in an Atom-Centered

    E-Print Network [OSTI]

    Baer, Roi

    / grant number: 1998108 (to R.B.) Contract/grant sponsor: Assistant Secretary or Energy and Renewable computationally expensive steps: (1) the evalu- ation of an effective one-electron hamiltonian (Fock operator Energy, Office of Adv

  20. Analysis of Wind Power and Load Data at Multiple Time Scales

    E-Print Network [OSTI]

    Coughlin, Katie

    2011-01-01T23:59:59.000Z

    by a set of integrated wind farms increases, the behavior ofto the spatial distribution of wind farms and the total MW.line dates for the various wind farms were not provided, so

  1. Multiple-Filled Skutterudites: High Thermoelectric Figure of Merit through Separately Optimizing Electrical and Thermal Transports

    SciTech Connect (OSTI)

    Zhang, Weiqing [Chinese Academy of Sciences; Yang, Jiong [Chinese Academy of Sciences; Yang, Jihui [General Motors Corporation; Wang, Hsin [ORNL; Salvador, James R. [GM R& D and Planning, Warren, Michigan; Shi, Xun [General Motors Corporation-R& D; Chi, Miaofang [ORNL; Cho, Jung Y [GM R& D and Planning, Warren, Michigan; Bai, Shengqiang [Chinese Academy of Sciences; Chen, Lidong [Chinese Academy of Sciences

    2011-01-01T23:59:59.000Z

    Skutterudites CoSb{sub 3} with multiple cofillers Ba, La, and Yb were synthesized and very high thermoelectric figure of merit ZT = 1.7 at 850 K was realized. X-ray diffraction of the densified multiple-filled bulk samples reveals all samples are phase pure. High-resolution scanning transmission electron microscopy (STEM) and energy dispersive X-ray spectroscopy (EDS) analysis confirm that multiple guest fillers occupy the nanoscale-cages in the skutterudites. The fillers are further shown to be uniformly distributed and the Co-Sb skutterudite framework is virtually unperturbed from atomic scale to a few micrometers. Our results firmly show that high power factors can be realized by adjusting the total filling fraction of fillers with different charge states to reach the optimum carrier density, at the same time, lattice thermal conductivity can also be significantly reduced, to values near the glass limit of these materials, through combining filler species of different rattling frequencies to achieve broad-frequency phonon scattering. Therefore, partially filled skutterudites with multiple fillers of different chemical nature render unique structural characteristics for optimizing electrical and thermal transports in a relatively independent way, leading to continually enhanced ZT values from single- to double-, and finally to multiple-filled skutterudites. The idea of combining multiple fillers with different charge states and rattling frequencies for performance optimization is also expected to be valid for other caged TE compounds.

  2. Dislocation dynamics simulations of plasticity at small scales

    SciTech Connect (OSTI)

    Zhou, Caizhi

    2010-12-15T23:59:59.000Z

    As metallic structures and devices are being created on a dimension comparable to the length scales of the underlying dislocation microstructures, the mechanical properties of them change drastically. Since such small structures are increasingly common in modern technologies, there is an emergent need to understand the critical roles of elasticity, plasticity, and fracture in small structures. Dislocation dynamics (DD) simulations, in which the dislocations are the simulated entities, offer a way to extend length scales beyond those of atomistic simulations and the results from DD simulations can be directly compared with the micromechanical tests. The primary objective of this research is to use 3-D DD simulations to study the plastic deformation of nano- and micro-scale materials and understand the correlation between dislocation motion, interactions and the mechanical response. Specifically, to identify what critical events (i.e., dislocation multiplication, cross-slip, storage, nucleation, junction and dipole formation, pinning etc.) determine the deformation response and how these change from bulk behavior as the system decreases in size and correlate and improve our current knowledge of bulk plasticity with the knowledge gained from the direct observations of small-scale plasticity. Our simulation results on single crystal micropillars and polycrystalline thin films can march the experiment results well and capture the essential features in small-scale plasticity. Furthermore, several simple and accurate models have been developed following our simulation results and can reasonably predict the plastic behavior of small scale materials.

  3. Mean pt scaling with m/nq at the LHC: Absence of (hydro) flow in small systems?

    E-Print Network [OSTI]

    Ortiz, Antonio

    2015-01-01T23:59:59.000Z

    In this work, a study of the average transverse momentum (pT) as a function of the mid-rapidity charged hadron multiplicity (Nch) and hadron mass (m) in p-Pb and Pb-Pb collisions at the LHC is presented. For the events producing low Nch, the average pT is found to scale with the reduced hadron mass, i.e., mass divided by the number of quark constituents (m/nq), this scaling also holds for minimum bias pp collisions at RHIC and LHC energies. The scaling is broken in high multiplicity p-Pb and Pb-Pb collisions, namely, for dNch/deta hydro calculations, where a universal scaling with the hadron mass (and not with m/nq) is predicted for all the multiplicity event classes. Only the 0-60% Pb-Pb collisions behave as expected from hydro.

  4. Mean pt scaling with m/nq at the LHC: Absence of (hydro) flow in small systems?

    E-Print Network [OSTI]

    Antonio Ortiz

    2015-06-01T23:59:59.000Z

    In this work, a study of the average transverse momentum (pT) as a function of the mid-rapidity charged hadron multiplicity (Nch) and hadron mass (m) in p-Pb and Pb-Pb collisions at the LHC is presented. For the events producing low Nch, the average pT is found to scale with the reduced hadron mass, i.e., mass divided by the number of quark constituents (m/nq), this scaling also holds for minimum bias pp collisions at RHIC and LHC energies. The scaling is broken in high multiplicity p-Pb and Pb-Pb collisions, namely, for dNch/deta hydro calculations, where a universal scaling with the hadron mass (and not with m/nq) is predicted for all the multiplicity event classes. Only the 0-60% Pb-Pb collisions behave as expected from hydro.

  5. A multi-scale metrics approach to forest fragmentation for Strategic Environmental Impact Assessment

    SciTech Connect (OSTI)

    Kim, Eunyoung, E-mail: eykim@kei.re.kr [Korea Environment Institute, 215 Jinheungno, Eunpyeong-gu, Seoul 122-706 (Korea, Republic of)] [Korea Environment Institute, 215 Jinheungno, Eunpyeong-gu, Seoul 122-706 (Korea, Republic of); Song, Wonkyong, E-mail: wksong79@gmail.com [Suwon Research Institute, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-270 (Korea, Republic of)] [Suwon Research Institute, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-270 (Korea, Republic of); Lee, Dongkun, E-mail: dklee7@snu.ac.kr [Department of Landscape Architecture and Rural System Engineering, Seoul National University, 599 Gwanakro, Gwanak-gu, Seoul 151-921 (Korea, Republic of) [Department of Landscape Architecture and Rural System Engineering, Seoul National University, 599 Gwanakro, Gwanak-gu, Seoul 151-921 (Korea, Republic of); Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-921 (Korea, Republic of)

    2013-09-15T23:59:59.000Z

    Forests are becoming severely fragmented as a result of land development. South Korea has responded to changing community concerns about environmental issues. The nation has developed and is extending a broad range of tools for use in environmental management. Although legally mandated environmental compliance requirements in South Korea have been implemented to predict and evaluate the impacts of land-development projects, these legal instruments are often insufficient to assess the subsequent impact of development on the surrounding forests. It is especially difficult to examine impacts on multiple (e.g., regional and local) scales in detail. Forest configuration and size, including forest fragmentation by land development, are considered on a regional scale. Moreover, forest structure and composition, including biodiversity, are considered on a local scale in the Environmental Impact Assessment process. Recently, the government amended the Environmental Impact Assessment Act, including the SEA, EIA, and small-scale EIA, to require an integrated approach. Therefore, the purpose of this study was to establish an impact assessment system that minimizes the impacts of land development using an approach that is integrated across multiple scales. This study focused on forest fragmentation due to residential development and road construction sites in selected Congestion Restraint Zones (CRZs) in the Greater Seoul Area of South Korea. Based on a review of multiple-scale impacts, this paper integrates models that assess the impacts of land development on forest ecosystems. The applicability of the integrated model for assessing impacts on forest ecosystems through the SEIA process is considered. On a regional scale, it is possible to evaluate the location and size of a land-development project by considering aspects of forest fragmentation, such as the stability of the forest structure and the degree of fragmentation. On a local scale, land-development projects should consider the distances at which impacts occur in the vicinity of the forest ecosystem, and these considerations should include the impacts on forest vegetation and bird species. Impacts can be mitigated by considering the distances at which these influences occur. In particular, this paper presents an integrated environmental impact assessment system to be applied in the SEIA process. The integrated assessment system permits the assessment of the cumulative impacts of land development on multiple scales. -- Highlights: • The model is to assess the impact of forest fragmentation across multiple scales. • The paper suggests the type of forest fragmentation on a regional scale. • The type can be used to evaluate the location and size of a land development. • The paper shows the influence distance of land development on a local scale. • The distance can be used to mitigate the impact at an EIA process.

  6. Renormalization Group Analysis of Finite-Size Scaling in the $?^4_4$ Model

    E-Print Network [OSTI]

    R. Kenna; C. B. Lang

    1992-10-08T23:59:59.000Z

    A finite-size scaling theory for the $\\phi^4_4$ model is derived using renormalization group methods. Particular attention is paid to the partition function zeroes, in terms of which all thermodynamic observables can be expressed. While the leading scaling behaviour is identical to that of mean field theory, there exist multiplicative logarithmic corrections too. A non-perturbative test of these formulae in the form of a high precision Monte Carlo analysis reveals good quantitative agreement with the analytical predictions.

  7. Multiple phase estimation for arbitrary pure states under white noise

    E-Print Network [OSTI]

    Yao Yao; Li Ge; Xing Xiao; Xiaoguang Wang; C. P. Sun

    2014-09-08T23:59:59.000Z

    In any realistic quantum metrology scenarios, the ultimate precision in the estimation of parameters is limited not only by the so-called Heisenberg scaling, but also the environmental noise encountered by the underlying system. In the context of quantum estimation theory, it is of great significance to carefully evaluate the impact of a specific type of noise on the corresponding quantum Fisher information (QFI) or quantum Fisher information matrix (QFIM). Here we investigate the multiple phase estimation problem for a natural parametrization of arbitrary pure states under white noise. We obtain the explicit expression of the symmetric logarithmic derivative (SLD) and hence the analytical formula of QFIM. Moreover, the attainability of the quantum Cram\\'{e}r-Rao bound (QCRB) is confirmed by the commutability of SLDs and the optimal estimators are elucidated for the experimental purpose. These findings generalize previously known partial results and highlight the role of white noise in quantum metrology.

  8. A Study of Multiplicities in Hadronic Interactions

    SciTech Connect (OSTI)

    Estrada Tristan, Nora Patricia; /San Luis Potosi U.

    2006-02-01T23:59:59.000Z

    Using data from the SELEX (Fermilab E781) experiment obtained with a minimum-bias trigger, we study multiplicity and angular distributions of secondary particles produced in interactions in the experimental targets. We observe interactions of {Sigma}{sup -}, proton, {pi}{sup -}, and {pi}{sup +}, at beam momenta between 250 GeV/c and 650 GeV/c, in copper, polyethylene, graphite, and beryllium targets. We show that the multiplicity and angular distributions for meson and baryon beams at the same momentum are identical. We also show that the mean multiplicity increases with beam momentum, and presents only small variations with the target material.

  9. A Multiple Network Approach to Corporate Governance

    E-Print Network [OSTI]

    Bonacina, Fausto; Moretto, Enrico; Stefani, Silvana; Torriero, Anna

    2014-01-01T23:59:59.000Z

    In this work, we consider Corporate Governance ties among companies from a multiple network perspective. Such a structurenaturally arises from the close interrelation between the Shareholding Network and the Board of Directors network. Inorder to capture the simultaneous effects on both networks on Corporate Governance, we propose to model the Corporate Governance multiple network structure via tensor analysis. In particular, we consider the TOPHITS model, based on the PARAFAC tensor decomposition, to show that tensor techniques can be successfully applied in this context. After providing some empirical results from the Italian financial market in the univariate case, we will show that a tensor-based multiple network approach can reveal important information.

  10. Transition from Large-Scale to Small-Scale Dynamo

    SciTech Connect (OSTI)

    Ponty, Y. [Universite de Nice Sophia-Antipolis, CNRS, Observatoire de la Cote d'Azur, B.P. 4229, Nice cedex 04 (France); Plunian, F. [Institut des Sciences de la Terre, CNRS, Universite Joseph Fourier, B.P. 53, 38041 Grenoble cedex 09 (France)

    2011-04-15T23:59:59.000Z

    The dynamo equations are solved numerically with a helical forcing corresponding to the Roberts flow. In the fully turbulent regime the flow behaves as a Roberts flow on long time scales, plus turbulent fluctuations at short time scales. The dynamo onset is controlled by the long time scales of the flow, in agreement with the former Karlsruhe experimental results. The is governed by a generalized {alpha} effect, which includes both the usual {alpha} effect and turbulent diffusion, plus all higher order effects. Beyond the onset we find that this generalized {alpha} effect scales as O(Rm{sup -1}), suggesting the takeover of small-scale dynamo action. This is confirmed by simulations in which dynamo occurs even if the large-scale field is artificially suppressed.

  11. Integration and the performance of large-scale health enterprises : field studies of psychological health delivery systems in the U.S. Military

    E-Print Network [OSTI]

    Kamin, Cody M. (Cody Meyer)

    2012-01-01T23:59:59.000Z

    Large-scale health enterprises comprise multiple organizations that provide programs and services for patients. Despite the interconnectedness of these systems there is a lack of empirical research documenting how these ...

  12. Acoustic signal estimation using multiple blind observations

    E-Print Network [OSTI]

    Lee, Joonsung

    2006-01-01T23:59:59.000Z

    This thesis proposes two algorithms for recovering an acoustic signal from multiple blind measurements made by sensors (microphones) over an acoustic channel. Unlike other algorithms that use a posteriori probabilistic ...

  13. Multiple Vehicle Routing Problem with Fuel Constraints

    E-Print Network [OSTI]

    Levy, David

    2013-06-26T23:59:59.000Z

    In this paper, a Multiple Vehicle Routing Problem with Fuel Constraints (MVRPFC) is considered. This problem consists of a field of targets to be visited, and a collection of vehicles with fuel tanks that may visit the targets. Consideration...

  14. Multiple microprocessor systems: what, why, and when

    SciTech Connect (OSTI)

    Fathi, E.T.; Krieger, M.

    1983-03-01T23:59:59.000Z

    For many applications-especially those requiring diversified computations in real time or high reliability without massive redundancy-multiple micons-especially those requiring diversified computations in real time or high reliability without massive redundancy-multiple microprocessor systems are the logical choice. Multiple microprocessor systems can provide an appropriate solution to the demand for additional computing power to meet new requirements and to support complex applications. To clarify the concept and its associated terminology, this article considers the what, why, and when of multiple microprocessor systems. Aspects that apply to all processors, regardless of size, are presented in general terms. However, since the main interest lies with microprocessor-based systems, aspects that depend on processor power and input/output flexibility are related specifically to microprocessors. 38 references.

  15. The MARVEL assembly for neutron multiplication

    SciTech Connect (OSTI)

    David L. Chichester; Mathew T. Kinlaw

    2013-10-01T23:59:59.000Z

    A new multiplying test assembly is under development at Idaho National Laboratory to support research, validation, evaluation, and learning. The item is comprised of three stacked, highly-enriched uranium (HEU) cylinders, each 11.4 cm in diameter and having a combined height of up to 11.7 cm. The combined mass of all three cylinders is 20.3 kg of HEU. Calculations for the bare configuration of the assembly indicate a multiplication level of >3.5 (keff=0.72). Reflected configurations of the assembly, using either polyethylene or tungsten, are possible and have the capability of raising the assembly's multiplication level to greater than 10. This paper describes simulations performed to assess the assembly's multiplication level under different conditions and describes the resources available at INL to support the use of these materials. We also describe some preliminary calculations and test activities using the assembly to study neutron multiplication.

  16. An improved model for multiple effect distillation

    E-Print Network [OSTI]

    Mistry, Karan H.

    Increasing global demand for fresh water is driving research and development of advanced desalination technologies. As a result, a detailed model of multiple effect distillation (MED) is developed that is flexible, simple ...

  17. Algorithms for Multiple Vehicle Routing Problems 

    E-Print Network [OSTI]

    Bae, Jung Yun

    2014-06-02T23:59:59.000Z

    Surveillance and monitoring applications require a collection of heterogeneous vehicles to visit a set of targets. This dissertation considers three fundamental routing problems involving multiple vehicles that arise in these applications. The main...

  18. Multiple Vehicle Routing Problem with Fuel Constraints 

    E-Print Network [OSTI]

    Levy, David

    2013-06-26T23:59:59.000Z

    In this paper, a Multiple Vehicle Routing Problem with Fuel Constraints (MVRPFC) is considered. This problem consists of a field of targets to be visited, and a collection of vehicles with fuel tanks that may visit the targets. Consideration...

  19. Algorithms for Multiple Vehicle Routing Problems

    E-Print Network [OSTI]

    Bae, Jung Yun

    2014-06-02T23:59:59.000Z

    Surveillance and monitoring applications require a collection of heterogeneous vehicles to visit a set of targets. This dissertation considers three fundamental routing problems involving multiple vehicles that arise in these applications. The main...

  20. Galois representations with quaternion multiplication associated to ...

    E-Print Network [OSTI]

    A.O.L. Atkin; Wen-Ching Winnie Li; Tong Liu; Ling Long

    2013-09-18T23:59:59.000Z

    Aug 19, 2013 ... 1 ? ?, each of multiplicity d, and all eigenvalues of the characteristic polynomial of a geometric ... When d = 1, by appealing to the now established Serre's conjecture, one concludes ...... MR2368983 (2009a:11102). [ASD71].

  1. Anisotropic Grid Adaptation for Multiple Aerodynamic Outputs

    E-Print Network [OSTI]

    Venditti, David A.

    Anisotropic grid–adaptive strategies are presented for viscous flow simulations in which the accurate prediction of multiple aerodynamic outputs (such as the lift, drag, and moment coefficients) is required from a single ...

  2. Inflation from Broken Scale Invariance

    E-Print Network [OSTI]

    Csaba Csaki; Nemanja Kaloper; Javi Serra; John Terning

    2014-06-19T23:59:59.000Z

    We construct a model of inflation based on a low-energy effective theory of spontaneously broken global scale invariance. This provides a shift symmetry that protects the inflaton potential from quantum corrections. Since the underlying scale invariance is non-compact, arbitrarily large inflaton field displacements are readily allowed in the low-energy effective theory. A weak breaking of scale invariance by almost marginal operators provides a non-trivial inflaton minimum, which sets and stabilizes the final low-energy value of the Planck scale. The underlying scale invariance ensures that the slow-roll approximation remains valid over large inflaton displacements, and yields a scale invariant spectrum of perturbations as required by the CMB observations.

  3. Manifold Integration: Data Integration on Multiple Manifolds

    E-Print Network [OSTI]

    Choi, Hee Youl

    2011-08-08T23:59:59.000Z

    MANIFOLD INTEGRATION: DATA INTEGRATION ON MULTIPLE MANIFOLDS A Dissertation by HEE YOUL CHOI Submitted to the O?ce of Graduate Studies of Texas A&M University in partial fulflllment of the requirements for the degree of DOCTOR OF PHILOSOPHY... May 2010 Major Subject: Computer Science MANIFOLD INTEGRATION: DATA INTEGRATION ON MULTIPLE MANIFOLDS A Dissertation by HEE YOUL CHOI Submitted to the O?ce of Graduate Studies of Texas A&M University in partial fulflllment of the requirements...

  4. A Multiple-Porosity Model for A Single-Phase Flow Through Naturally-Fractured Porous Media

    E-Print Network [OSTI]

    Douglas Jr., Jim

    compressible uid in a multiscale, naturally-fractured reservoir is presented. The problem can serve as a modelA Multiple-Porosity Model for A Single-Phase Flow Through Naturally-Fractured Porous Media Jim counterpart. Further, a model for the (N + 1)-scale problem in a fractured medium is derived. The well

  5. 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.

  6. Large scale tracking algorithms.

    SciTech Connect (OSTI)

    Hansen, Ross L.; Love, Joshua Alan; Melgaard, David Kennett; Karelitz, David B.; Pitts, Todd Alan; Zollweg, Joshua David; Anderson, Dylan Z.; Nandy, Prabal; Whitlow, Gary L.; Bender, Daniel A.; Byrne, Raymond Harry

    2015-01-01T23:59:59.000Z

    Low signal-to-noise data processing algorithms for improved detection, tracking, discrimination and situational threat assessment are a key research challenge. As sensor technologies progress, the number of pixels will increase signi cantly. This will result in increased resolution, which could improve object discrimination, but unfortunately, will also result in a significant increase in the number of potential targets to track. Many tracking techniques, like multi-hypothesis trackers, suffer from a combinatorial explosion as the number of potential targets increase. As the resolution increases, the phenomenology applied towards detection algorithms also changes. For low resolution sensors, "blob" tracking is the norm. For higher resolution data, additional information may be employed in the detection and classfication steps. The most challenging scenarios are those where the targets cannot be fully resolved, yet must be tracked and distinguished for neighboring closely spaced objects. Tracking vehicles in an urban environment is an example of such a challenging scenario. This report evaluates several potential tracking algorithms for large-scale tracking in an urban environment.

  7. Scale Insects on Ornamental Plants 

    E-Print Network [OSTI]

    Muegge, Mark A.; Merchant, Michael E.

    2000-08-21T23:59:59.000Z

    Scale insects on o rnamental plants B-6097 8-00 Mark A. Muegge and Michael Merchant* M any species of scale insects damage land- scape plants, shrubs and trees. Scale insects insert their mouthparts into plant tissues and suck out the sap. When... period. Most species never move again in their lives. Scale insects feed by inserting their hairlike mouth- parts into plant tissue and siphoning the plant?s sap. While feeding, many species excrete a sweet, sticky liquid referred to as ?honeydew...

  8. Isotopic Scaling in Nuclear Reactions

    E-Print Network [OSTI]

    M. B. Tsang; W. A. Friedman; C. K. Gelbke; W. G. Lynch; G. Verde; H. Xu

    2001-03-26T23:59:59.000Z

    A three parameter scaling relationship between isotopic distributions for elements with Z$\\leq 8$ has been observed that allows a simple description of the dependence of such distributions on the overall isospin of the system. This scaling law (termed iso-scaling) applies for a variety of reaction mechanisms that are dominated by phase space, including evaporation, multifragmentation and deeply inelastic scattering. The origins of this scaling behavior for the various reaction mechanisms are explained. For multifragmentation processes, the systematics is influenced by the density dependence of the asymmetry term of the equation of state.

  9. Scale, scaling and multifractals in geophysics: twenty Shaun Lovejoy1

    E-Print Network [OSTI]

    Lovejoy, Shaun

    Scale, scaling and multifractals in geophysics: twenty years on Shaun Lovejoy1 and Daniel Schertzer number of degrees of freedom approaches to nonlin- ear geophysics: a) the transition from fractal are generally necessary for geophysical applications. We illustrate these ideas with data analyses from both

  10. Industrial Scale Demonstration of Smart Manufacturing Achieving...

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

    Scale Demonstration of Smart Manufacturing Achieving Transformational Energy Productivity Gains Industrial Scale Demonstration of Smart Manufacturing Achieving...

  11. Modeling Sustainable Agricultural Residue Removal at the Subfield Scale

    SciTech Connect (OSTI)

    Muth, D.J.; McCorkle, D.S.; Koch, J.B.; Bryden, K.M.

    2012-05-02T23:59:59.000Z

    This study developed a computational strategy that utilizes data inputs from multiple spatial scales to investigate how variability within individual fields can impact sustainable residue removal for bioenergy production. Sustainable use of agricultural residues for bioenergy production requires consideration of the important role that residues play in limiting soil erosion and maintaining soil C, health, and productivity. Increased availability of subfield-scale data sets such as grain yield data, high-fidelity digital elevation models, and soil characteristic data provides an opportunity to investigate the impacts of subfield-scale variability on sustainable agricultural residue removal. Using three representative fields in Iowa, this study contrasted the results of current NRCS conservation management planning analysis with subfield-scale analysis for rake-and-bale removal of agricultural residue. The results of the comparison show that the field-average assumptions used in NRCS conservation management planning may lead to unsustainable residue removal decisions for significant portions of some fields. This highlights the need for additional research on subfield-scale sustainable agricultural residue removal including the development of real-time variable removal technologies for agricultural residue.

  12. Project Profile: CSP Energy Storage Solutions - Multiple Technologies...

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

    Energy Storage Solutions - Multiple Technologies Compared Project Profile: CSP Energy Storage Solutions - Multiple Technologies Compared US Solar Holdings logo US Solar Holdings,...

  13. Hydrogen Bonded Arrays: The Power of Multiple Hydrogen Bonds...

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

    Bonded Arrays: The Power of Multiple Hydrogen Bonds. Hydrogen Bonded Arrays: The Power of Multiple Hydrogen Bonds. Abstract: Hydrogen bond interactions in small covalent model...

  14. In Situ Live Cell Sensing of Multiple Nucleotides Exploiting...

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

    In Situ Live Cell Sensing of Multiple Nucleotides Exploiting DNARNA Aptamers and Graphene Oxide Nanosheets. In Situ Live Cell Sensing of Multiple Nucleotides Exploiting DNARNA...

  15. AltaRock Energy Announces Successful Multiple-Zone Stimulation...

    Office of Environmental Management (EM)

    Announces Successful Multiple-Zone Stimulation of Well at the Newberry Enhanced Geothermal Systems Demonstration AltaRock Energy Announces Successful Multiple-Zone Stimulation...

  16. V-090: Adobe Flash Player / AIR Multiple Vulnerabilities | Department...

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

    0: Adobe Flash Player AIR Multiple Vulnerabilities V-090: Adobe Flash Player AIR Multiple Vulnerabilities February 13, 2013 - 12:14am Addthis PROBLEM: Adobe Flash Player AIR...

  17. SciTech Connect: Matrix multiplication operations with datapre...

    Office of Scientific and Technical Information (OSTI)

    Matrix multiplication operations with data pre-conditioning in a high performance computing architecture Citation Details In-Document Search Title: Matrix multiplication operations...

  18. accurate multiple locus: Topics by E-print Network

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

    severe economic losses in the main apple producing areas of East Asia. The causal Biggs, Alan R. 8 Accurate Matrix Multiplication with Multiple Floating-point Numbers...

  19. Covalency in Metal-Oxygen Multiple Bonds Evaluated Using Oxygen...

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

    Multiple Bonds Evaluated Using Oxygen K-edge Spectroscopy and Electronic Structure Theory . Covalency in Metal-Oxygen Multiple Bonds Evaluated Using Oxygen K-edge Spectroscopy...

  20. Fluid computation of the performanceenergy trade-off in large scale Markov models

    E-Print Network [OSTI]

    Imperial College, London

    Fluid computation of the performance­energy trade-off in large scale Markov models Anton Stefanek energy consumption while maintaining multiple service level agreements. 2. VIRTUALISED EXECUTION MODEL optimisation. We show how the fluid analysis naturally leads to a constrained global optimisation prob- lem

  1. Allometric scaling of lung volume and its consequences for marine turtle diving performance

    E-Print Network [OSTI]

    Hays, Graeme

    Allometric scaling of lung volume and its consequences for marine turtle diving performance Sandra in revised form 15 May 2007; accepted 15 May 2007 Available online 21 May 2007 Abstract Marine turtle lungs have multiple functions including respiration, oxygen storage and buoyancy regulation, so lung size

  2. Sediment accumulation patterns and fine-scale strata formation on the Waiapu River shelf, New Zealand

    E-Print Network [OSTI]

    Newman, Michael C.

    such that only an estimated ~23% (ranging between 17 and 38%) of the fluvial load was retained on the shelf profiles, suggesting that multiple transport processes influenced fine-scale strata formation. Layers a significant fraction of a small river's annual load (Milliman and Syvitski, 1992; Farnsworth and Milliman

  3. A Pore Scale Evaluation of the Kinetics of Mineral Dissolution and Precipitation Reactions (EMSI)

    SciTech Connect (OSTI)

    Steefel, Carl I.

    2006-06-01T23:59:59.000Z

    The chief goals for CEKA are to (1) collect and synthesize molecular-level kinetic data into a coherent framework that can be used to predict time evolution of environmental processes over a range of temporal and spatial scales; (2) train a cohort of talented and diverse students to work on kinetic problems at multiple scales; (3) develop and promote the use of new experimental techniques in environmental kinetics; (4) develop and promote the use of new modeling tools to conceptualize reaction kinetics in environmental systems; and (5) communicate our understanding of issues related to environmental kinetics and issues of scale to the broader scientific community and to the public.

  4. Implicit Scaling in Ecological Research

    E-Print Network [OSTI]

    Tullos, Desiree

    - sion, and abstruse structures, such as communities and ecosystems. The diversity of organisms and eco. It was our supposition that the often unrecognized relation- ship between organism/concept and scale should- ination, we hope to raise ecologists' awareness of scale-dependent rela- tionships among organisms and eco

  5. Enhancing video transmission in MANETs utilizing multiple interfaces and multiple channels per node

    E-Print Network [OSTI]

    Bouras, Christos

    . Simulation results indicate that the mechanism improves the networks capacity for video transmissionEnhancing video transmission in MANETs utilizing multiple interfaces and multiple channels per node}@cti.gr, gkamas@aeavellas.gr {politaki, tsanai}@ceid.upatras.gr Abstract. Mobile Ad hoc NETworks (MANETs

  6. Multiple-Objective Metric for Placing Multiple Base Stations in Wireless Sensor Networks

    E-Print Network [OSTI]

    Liblit, Ben

    positioning in sensor networks based on directional antennas [6], but it addresses secure positioningMultiple-Objective Metric for Placing Multiple Base Stations in Wireless Sensor Networks Soo Kim in wireless sensor networks. First, the ratio of sensor nodes which can communicate with a base station via

  7. Fairness and Convergence Results for Additive-Increase Multiplicative-Decrease Multiple-Bottleneck Networks

    E-Print Network [OSTI]

    Duffy, Ken

    -scales its utilization-rate in a multi- plicative fashion when notified that capacity has been reached (the

  8. Initial Operation of the High Temperature Electrolysis Integrated Laboratory Scale Experiment at INL

    SciTech Connect (OSTI)

    C. M. Stoots; J. E. O'Brien; K. G. Condie; J. S. Herring; J. J. Hartvigsen

    2008-06-01T23:59:59.000Z

    An integrated laboratory scale, 15 kW high-temperature electrolysis facility has been developed at the Idaho National Laboratory under the U.S. Department of Energy Nuclear Hydrogen Initiative. Initial operation of this facility resulted in over 400 hours of operation with an average hydrogen production rate of approximately 0.9 Nm3/hr. The integrated laboratory scale facility is designed to address larger-scale issues such as thermal management (feed-stock heating, high-temperature gas handling), multiple-stack hot-zone design, multiple-stack electrical configurations, and other “integral” issues. This paper documents the initial operation of the ILS, with experimental details about heat-up, initial stack performance, as well as long-term operation and stack degradation.

  9. Hydranet: network support for scaling of large scale servic es

    E-Print Network [OSTI]

    Chawla, Hamesh

    1998-01-01T23:59:59.000Z

    With the explosive growth of demand for services on the Internet, the networking infrastructure (routers 7 protocols, servers) is under considerable stress. Mechanisms are needed for current and future IP services to scale in a client transparent...

  10. Shapes of agglomerates in plasma etching reactors Fred Y. Huanga)

    E-Print Network [OSTI]

    Kushner, Mark

    are ion drag, electrostatic, neutral drag, thermophoretic, gravitational, and self-diffusion. Ion drag

  11. Fred H. Rodriguez ('75) Kenneth N. Adatto ('68)

    E-Print Network [OSTI]

    D Bennett P. deBoisblanc ('81) William J. DeFee III ('71) Charles J. III ('87) and Mrs. DePaolo Dr. O, Jr. ('56)* R. Bruce Jordan ('62) William H. Kinnard ('79) Russell C. Klein ('59) David G. Kline, MD) Mark Juneau, Jr. ('73) Russell C. Klein ('59) James J. Leonard ('63) Steve Nelson, MD ­ Dean Earl J

  12. Fred H. Rodriguez ('75) Kenneth N. Adatto ('68)

    E-Print Network [OSTI]

    ) William J. DeFee III ('71) Charles J. III ('87) & Mrs. DePaolo Dr. O.R. ('42)* & Mrs. Depp De, Jr. ('56)* R. Bruce Jordan ('62) P. David Kearns ('79) William H. Kinnard ('79) Russell C. Klein ('59) Mark Juneau, Jr. ('73) Russell C. Klein ('59) James J. Leonard ('63) Steve Nelson, MD - Dean Earl J

  13. Fred H. Rodriguez ('75) Kenneth N. Adatto ('68)

    E-Print Network [OSTI]

    J. Danna ('71) George D. Davis, PhD* Bennett P. deBoisblanc ('81) William J. DeFee, III (`71. Hilton, MD ('98) Patrick A. Hymel, Jr. (98) Frank P. Incaprera ('50) Richard C. Jarrell ('80) Myron H Kearns ('79) William H. Kinnard ('79) Russell C. Klein (`59) David G. Kline, MD Alan D. Lacoste (`75

  14. showcase scheduling at fred astaire east side dance studio

    E-Print Network [OSTI]

    mal92

    2008-04-25T23:59:59.000Z

    As a result, the managers are forced to spend weeks manually constructing and tweaking ... before the showcase, they would still require the managers to spend.

  15. Emergency Response Plan for the Fred Kaiser and Macleod Buildings

    E-Print Network [OSTI]

    Pulfrey, David L.

    with Disabilities - Locations ..............................................10 6 Responsibilities In the Case of Hazardous Material Releases, Spills, Explosions or Fires..27 Building Occupants - Instructions................................................................27 9.1 Explosion or Fire due to Hazardous Materials .........................................27 9

  16. Fred S. Roberts Command, Control, and Interoperability Center

    E-Print Network [OSTI]

    (CCICADA)* Rutgers University *A Department of Homeland Security University Center of Excellence The Trend ­ For patrons ­ For employees · HVAC · Communication systems ­ Electronic message boards ­ Public address

  17. Induced Seismicity Consortium (ISC) Fred Aminzadeh, PI, Petroleum Engineering Program

    E-Print Network [OSTI]

    Southern California, University of

    modeling and data analysis capabilities for predicting seismic impacts associated with hydraulic fracturing addresses a very critical and under-developed aspect of environmental safety associated with hydraulic fracturing operations waste water injection and disposal wells, geothermal resource development, and EOR/CO2

  18. Jessica Fred, Residence Life Coordinator Jeff Broggi, Assistant Director

    E-Print Network [OSTI]

    and will determine whether students can sign back into the building. #12; Interactive community with and annual theme from 8pm to 8am Technology > Smart boards, electronic bulletin boards, wireless internet throughout building Great study and social lounge spaces > Building A 1 large study space 1 large lounge space

  19. Dr. Suresh Alahari, the Fred G. Brazda Professor of

    E-Print Network [OSTI]

    ,TX. The cases resulted from the use of portable generators. A portable generator is an internal combustion engine that exhausts a deadly gas called They represent "new faces doing noteworthy activities or

  20. News Release Media Contact: Fred Strohl (strohlhf@ornl.gov)

    E-Print Network [OSTI]

    energy efficient buildings, including a house and a community center. As part of the segment, Energy to achieve as near zero energy design as we could." Christian hopes the estimated 15 million people who for Americans to make in their own homes," Christian said. "The goal is to move as close to zero energy

  1. Emergency Response Plan for the Fred Kaiser and Macleod Buildings

    E-Print Network [OSTI]

    Pulfrey, David L.

    Walk 604.822.5355 Campus Security 604.822.2222 Fire Prevention (City of Vancouver Inquiry Line) 311 RCMP 6 3.2 Emergency Lighting 6 3.3 Emergency Power 6 3.4 Fire Alarm System 6 3.5 Fire Extinguisher(s) 7 Department 604.822.7662 (8:00 Am ­ 5:00 PM only) Poison Control Centre 604.682.5050 Campus Security 604

  2. Agent Program Planning Information Fathers Reading Every Day (FRED)

    E-Print Network [OSTI]

    are held at child care centers, elementary schools, public libraries, school libraries, and churchesMeeting training conducted by Dr. Stephen Green in the fall of 2013. The training will recorded and posted on Agri

  3. FRED - Q & A | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives and Policies |FPEFR

  4. FRED+free energy database | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives and PoliciesHomeno

  5. Introducing FRED, Enabling Unique Visualization and Manipulation of Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarmsPower Co Ltd JumpInformationInterstromData at

  6. OpenEI Community - FRED+free energy database

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcernsCompany Oil and GasOff the GridHome All0 enTeam! Welcome to

  7. Mr. Fred Steinkuehler Granite City Steel Division National Steel Corporation

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTuba City, Arizona, DisposalFourth Five-Year38Report3Department of Energy

  8. Active neutron multiplicity counting of bulk uranium

    SciTech Connect (OSTI)

    Ensslin, N.; Krick, M.S.; Langner, D.G.; Miller, M.C.

    1991-01-01T23:59:59.000Z

    This paper describes a new nondestructive assay technique being developed to assay bulk uranium containing kilogram quantities of {sup 235}U. The new technique uses neutron multiplicity analysis of data collected with a coincidence counter outfitted with AmLi neutron sources. We have calculated the expected neutron multiplicity count rate and assay precision for this technique and will report on its expected performance as a function of detector design characteristics, {sup 235 }U sample mass, AmLi source strength, and source-to-sample coupling. 11 refs., 2 figs., 2 tabs.

  9. Hand-held multiple system gas chromatograph

    DOE Patents [OSTI]

    Yu, Conrad M. (Antioch, CA)

    2001-01-01T23:59:59.000Z

    A multiple parallel hand-held gas chromatograph (GC) system which includes several independent GCs. Each independent GC has its own injector, separation column, detector and oven and the GCs are mounted in a light weight hand-held assembly. Each GC operates independently and simultaneously. Because of different coatings in different separation columns, different retention times for the same gas will be measured. Thus, for a GC system with multiple parallel GCs, the system can measure, in a short period, different retention times and provide a cross-reference in the determination of the measured gas and to become a two-dimensional system for direct field use.

  10. Laser isotope separation by multiple photon absorption

    DOE Patents [OSTI]

    Robinson, C. Paul (Los Alamos, NM); Rockwood, Stephen D. (Los Alamos, NM); Jensen, Reed J. (Los Alamos, NM); Lyman, John L. (Los Alamos, NM); Aldridge, III, Jack P. (Los Alamos, NM)

    1987-01-01T23:59:59.000Z

    Multiple photon absorption from an intense beam of infrared laser light may be used to induce selective chemical reactions in molecular species which result in isotope separation or enrichment. The molecular species must have a sufficient density of vibrational states in its vibrational manifold that, is the presence of sufficiently intense infrared laser light tuned to selectively excite only those molecules containing a particular isotope, multiple photon absorption can occur. By this technique, for example, intense CO.sub.2 laser light may be used to highly enrich .sup.34 S in natural SF.sub.6 and .sup.11 B in natural BCl.sub.3.

  11. Laser isotope separation by multiple photon absorption

    DOE Patents [OSTI]

    Robinson, C.P.; Rockwood, S.D.; Jensen, R.J.; Lyman, J.L.; Aldridge, J.P. III.

    1987-04-07T23:59:59.000Z

    Multiple photon absorption from an intense beam of infrared laser light may be used to induce selective chemical reactions in molecular species which result in isotope separation or enrichment. The molecular species must have a sufficient density of vibrational states in its vibrational manifold that, is the presence of sufficiently intense infrared laser light tuned to selectively excite only those molecules containing a particular isotope, multiple photon absorption can occur. By this technique, for example, intense CO[sub 2] laser light may be used to highly enrich [sup 34]S in natural SF[sub 6] and [sup 11]B in natural BCl[sub 3]. 8 figs.

  12. Scale Insects on Ornamental Plants

    E-Print Network [OSTI]

    Muegge, Mark A.; Merchant, Michael E.

    2000-08-21T23:59:59.000Z

    of all insect groups. Scale insects are generally small ( 1 /4 inch long or less) and often mimic various plant parts, such as bark and buds. Other species appear as small, white, waxy blotches or small bits of cotton on leaves and stems. The one... crawlers are pre- sent, they will fall onto the paper, where you can eas- ily see them moving about. Using natural enemies to control scales Many natural enemies?small parasitic wasps, lady- bird beetles and some fungi?can significantly reduce scale insect...

  13. RESEARCH Open Access Impaired multiple object tracking in children with

    E-Print Network [OSTI]

    Nguyen, Danh

    demands related to monitoring multiple targets reflecting a reduced acuity in spatiotemporal cognitive

  14. Homogeneous isotropic turbulence in dilute polymers: scale by scale budget

    E-Print Network [OSTI]

    E. De Angelis; C. M. Casciola; R. Benzi; R. Piva

    2002-08-09T23:59:59.000Z

    The turbulent energy cascade in dilute polymers solution is addressed here by considering a direct numerical simulation of homogeneous isotropic turbulence of a FENE-P fluid in a triply periodic box. On the basis of the DNS data, a scale by scale analysis is provided by using the proper extension to visco-elastic fluids of the Karman-Howarth equation for the velocity. For the microstructure, an equation, analogous to the Yaglom equation for scalars, is proposed for the free-energy density associated to the elastic behavior of the material. Two mechanisms of energy removal from the scale of the forcing are identified, namely the classical non-linear transfer term of the standard Navier-Stokes equations and the coupling between macroscopic velocity and microstructure. The latter, on average, drains kinetic energy to feed the dynamics of the microstructure. The cross-over scale between the two corresponding energy fluxes is identified, with the flux associated with the microstructure dominating at small separations to become sub-leading above the cross-over scale, which is the equivalent of the elastic limit scale defined by De Gennes-Tabor on the basis of phenomenological assumptions.

  15. Commercial Scale Wind Incentive Program

    Broader source: Energy.gov [DOE]

    Energy Trust of Oregon’s Commercial Scale Wind offering provides resources and cash incentives to help communities, businesses land owners, and government entities install wind turbine systems up...

  16. Sizing Up Allometric Scaling Theory

    E-Print Network [OSTI]

    Savage, Van M.; Deeds, Eric J.; Fontana, Walter

    2008-09-12T23:59:59.000Z

    Metabolic rate, heart rate, lifespan, and many other physiological properties vary with body mass in systematic and interrelated ways. Present empirical data suggest that these scaling relationships take the form of power ...

  17. Pilot Scale Advanced Fogging Demonstration

    SciTech Connect (OSTI)

    Demmer, Rick L. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Fox, Don T. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Archiblad, Kip E. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-01-01T23:59:59.000Z

    Experiments in 2006 developed a useful fog solution using three different chemical constituents. Optimization of the fog recipe and use of commercially available equipment were identified as needs that had not been addressed. During 2012 development work it was noted that low concentrations of the components hampered coverage and drying in the United Kingdom’s National Nuclear Laboratory’s testing much more so than was evident in the 2006 tests. In fiscal year 2014 the Idaho National Laboratory undertook a systematic optimization of the fogging formulation and conducted a non-radioactive, pilot scale demonstration using commercially available fogging equipment. While not as sophisticated as the equipment used in earlier testing, the new approach is much less expensive and readily available for smaller scale operations. Pilot scale testing was important to validate new equipment of an appropriate scale, optimize the chemistry of the fogging solution, and to realize the conceptual approach.

  18. Hoopa Valley Small Scale Hydroelectric Feasibility Project

    SciTech Connect (OSTI)

    Curtis Miller

    2009-03-22T23:59:59.000Z

    This study considered assessing the feasibility of developing small scale hydro-electric power from seven major tributaries within the Hoopa Valley Indian Reservation of Northern California (http://www.hoopa-nsn.gov/). This study pursued the assessment of seven major tributaries of the Reservation that flow into the Trinity River. The feasibility of hydropower on the Hoopa Valley Indian Reservation has real potential for development and many alternative options for project locations, designs, operations and financing. In order to realize this opportunity further will require at least 2-3 years of intense data collection focusing on stream flow measurements at multiple locations in order to quantify real power potential. This also includes on the ground stream gradient surveys, road access planning and grid connectivity to PG&E for sale of electricity. Imperative to this effort is the need for negotiations between the Hoopa Tribal Council and PG&E to take place in order to finalize the power rate the Tribe will receive through any wholesale agreement that utilizes the alternative energy generated on the Reservation.

  19. Computer Simulations Reveal Multiple Functions for Aromatic

    E-Print Network [OSTI]

    Computer Simulations Reveal Multiple Functions for Aromatic Residues in Cellulase Enzymes NREL researchers use high-performance computing to demonstrate fundamental roles of aromatic residues in cellulase enzyme tunnels. National Renewable Energy Laboratory (NREL) computer simulations of a key indus- trial

  20. Multibrowsing: Moving Web Content across Multiple Displays

    E-Print Network [OSTI]

    Stanford University

    is a framework for exploiting multiple heterogeneous displays, whether fixed or on mobile computing devices displays in a ubiquitous computing environment. The dis- plays may be "public" (e.g. wall-sized fixed for multi- display environments. Since it uses Web standards, it accommodates any device or platform already

  1. BLEI'S INEQUALITY AND COORDINATEWISE MULTIPLE SUMMING OPERATORS

    E-Print Network [OSTI]

    Sinnamon, Gordon J.

    BLEI'S INEQUALITY AND COORDINATEWISE MULTIPLE SUMMING OPERATORS DUMITRU POPA AND GORD SINNAMON are proved. When specialized to single-function inequalities they include a pair of inequalities due to Blei and a recent extension of Blei's inequality. The first of these inequalities is applied to give explicit

  2. Multiple Sclerosis Luminance Threshold and Measurements

    E-Print Network [OSTI]

    Foster, David H.

    Multiple Sclerosis Luminance Threshold and Measurements of Temporal Characteristics of Vision Definite MS + 6/9 - + + 7/50/F Recurrent ON + 6/6 + - + 8/47/F Definite MS + 6/6 + + + · Luminance to te t the temporal properties of vi Ion were equalized with respect to Individual luminance thresh

  3. Semiconductor laser with multiple lasing wavelengths

    DOE Patents [OSTI]

    Fischer, Arthur J.; Choquette, Kent D.; Chow, Weng W.

    2003-07-29T23:59:59.000Z

    A new class of multi-terminal vertical-cavity semiconductor laser components has been developed. These multi-terminal laser components can be switched, either electrically or optically, between distinct lasing wavelengths, or can be made to lase simultaneously at multiple wavelengths.

  4. Quasi Multiplication and K-groups

    E-Print Network [OSTI]

    Lee, Tsiu-Kwen; Sheu, Albert Jeu-Liang

    2013-02-28T23:59:59.000Z

    We give a negative answer to the question raised by Mart Abel about whether his proposed definition of K0 and K1 groups in terms of quasi multiplication is indeed equivalent to the established ones in algebraic K-theory....

  5. Steady water waves with multiple critical layers

    E-Print Network [OSTI]

    Mats Ehrnström; Joachim Escher; Erik Wahlén

    2011-04-01T23:59:59.000Z

    We construct small-amplitude periodic water waves with multiple critical layers. In addition to waves with arbitrarily many critical layers and a single crest in each period, two-dimensional sets of waves with several crests and troughs in each period are found. The setting is that of steady two-dimensional finite-depth gravity water waves with vorticity.

  6. Jitter Regulation for Multiple Streams (Extended Abstract)

    E-Print Network [OSTI]

    Hay, David

    Jitter Regulation for Multiple Streams (Extended Abstract) David Hay and Gabriel Scalosub Computer as possible; the smoothness of a traffic is typically captured by its delay jitter, i.e., the difference between the maximal and minimal end-to-end delays. The task of minimizing the jitter is done by jitter

  7. Anisotropic Grid Adaptation for Multiple Aerodynamic Outputs

    E-Print Network [OSTI]

    Peraire, Jaime

    Anisotropic Grid Adaptation for Multiple Aerodynamic Outputs David A. Venditti and David L Anisotropic grid­adaptive strategies are presented for viscous flow simulations in which the accurate estimation and Hessian-based anisotropic grid adaptation. Airfoil test cases are presented to demonstrate

  8. Scales of Fermion Mass Generation and Electroweak Symmetry Breaking

    E-Print Network [OSTI]

    Duane A. Dicus; Hong-Jian He

    2005-06-11T23:59:59.000Z

    The scale of mass generation for fermions (including neutrinos) and the scale for electroweak symmetry breaking (EWSB) can be bounded from above by the unitarity of scattering involving longitudinal weak gauge bosons or their corresponding would-be Goldstone bosons. Including the exact n-body phase space we analyze the 2 --> n ($n \\geq 2$) processes for the fermion-(anti)fermion scattering into multiple gauge boson final states. Contrary to naive energy power counting, we demonstrate that as $n$ becomes large, the competition between an increasing energy factor and a phase-space suppression leads to a {\\it strong new upper bound} on the scale of fermion mass generation at a finite value $n=n_s$, which is {\\it independent of the EWSB scale,} $v = (\\sqrt{2}G_F)^{-1/2}$. For quarks, leptons and Majorana neutrinos, the strongest 2 --> n limits range from about 3TeV to 130-170TeV (with $2\\lesssim n_s \\lesssim 24$), depending on the measured fermion masses. Strikingly, given the tiny neutrino masses as constrained by the neutrino oscillations, neutrinoless double-beta decays and astrophysical observations, the unitarity violation of $\

  9. Initial eccentricity and constituent quark number scaling of elliptic flow in ideal and viscous dynamics

    E-Print Network [OSTI]

    A. K. Chaudhuri

    2010-03-23T23:59:59.000Z

    In the Israel-Stewart's theory of dissipative hydrodynamics, we study the scaling properties elliptic flow in Au+Au collisions. Initial energy density of the fluid was fixed to reproduce STAR data on $\\phi$ meson multiplicity in 0-5% Au+Au collisions, such that irrespective of fluid viscosity, entropy at the freeze-out is similar in ideal or in viscous evolution. Initial eccentricity or constituent quark number scaling is only approximate in ideal or minimally viscous ($\\eta/s=1/4\\pi$) fluid. Eccentricity scaling become nearly exact in more viscous fluid ($\\eta/s \\geq$0.12). However, in more viscous fluid, constituent quark number scaled elliptic flow for mesons and baryons split into separate scaling functions. Simulated flows also do not exhibit 'universal scaling' i.e. elliptic flow scaled by the constituent quark number and charged particles $v_2$ is not a single function of transverse kinetic energy scaled by the quark number. From a study of violation of universal scaling, we obtain an estimate of QGP viscosity, $\\eta/s=0.12 \\pm 0.03$.

  10. Charged particle multiplicities in pp interactions at sqrt(s) = 0.9, 2.36, and 7 TeV

    SciTech Connect (OSTI)

    Khachatryan, V. [Yerevan Physics Institute (Aremenia); et al.,

    2011-01-01T23:59:59.000Z

    Measurements of primary charged hadron multiplicity distributions are presented for non-single-diffractive events in proton-proton collisions at centre-of-mass energies of sqrt(s) = 0.9, 2.36, and 7 TeV, in five pseudorapidity ranges from |eta|<0.5 to |eta|<2.4. The data were collected with the minimum-bias trigger of the CMS experiment during the LHC commissioning runs in 2009 and the 7 TeV run in 2010. The multiplicity distribution at sqrt(s) = 0.9 TeV is in agreement with previous measurements. At higher energies the increase of the mean multiplicity with sqrt(s) is underestimated by most event generators. The average transverse momentum as a function of the multiplicity is also presented. The measurement of higher-order moments of the multiplicity distribution confirms the violation of Koba-Nielsen-Olesen scaling that has been observed at lower energies.

  11. Particle multiplicity of unbiased gluon jets from $e^+ e^-$ three-jet events

    E-Print Network [OSTI]

    Abbiendi, G; Åkesson, P F; Alexander, Gideon; Allison, J; Anagnostou, G; Anderson, K J; Arcelli, S; Asai, S; Axen, D A; Azuelos, Georges; Bailey, I; Barberio, E; Barlow, R J; Batley, J Richard; Bechtle, P; Behnke, T; Bell, K W; Bell, P J; Bella, G; Bellerive, A; Benelli, G; Bethke, Siegfried; Biebel, O; Bloodworth, Ian J; Boeriu, O; Bock, P; Böhme, J; Bonacorsi, D; Boutemeur, M; Braibant, S; Brigliadori, L; Brown, R M; Burckhart, H J; Cammin, J; Campana, S; Carnegie, R K; Caron, B; Carter, A A; Carter, J R; Chang, C Y; Charlton, D G; Clarke, P E L; Clay, E; Cohen, I; Couchman, J; Csilling, Akos; Cuffiani, M; Dado, S; Dallavalle, G M; Dallison, S; de Roeck, A; De Wolf, E A; Dervan, P J; Desch, Klaus; Dienes, B; Donkers, M; Dubbert, J; Duchovni, E; Duckeck, G; Duerdoth, I P; Etzion, E; Fabbri, Franco Luigi; Feld, L; Ferrari, P; Fiedler, F; Fleck, I; Ford, M; Frey, A; Fürtjes, A; Futyan, D I; Gagnon, P; Gary, J W; Gaycken, G; Geich-Gimbel, C; Giacomelli, G; Giacomelli, P; Giunta, M; Goldberg, J; Graham, K; Gross, E; Grunhaus, Jacob; Gruwé, M; Günther, P O; Sen-Gupta, A; Hajdu, C; Hamann, M; Hanson, G G; Harder, K; Harel, A; Harin-Dirac, M; Hauschild, M; Hauschildt, J; Hawkes, C M; Hawkings, R; Hemingway, Richard J; Hensel, C; Herten, G; Heuer, R D; Hill, J C; Hoffman, K; Homer, R James; Horváth, D; Hossain, K R; Howard, R; Hüntemeyer, P; Igo-Kemenes, P; Ishii, K; Jawahery, A; Jeremie, H; Jones, C R; Jovanovic, P; Junk, T R; Kanaya, N; Kanzaki, J; Karapetian, G V; Karlen, D A; Kartvelishvili, V G; Kawagoe, K; Kawamoto, T; Keeler, Richard K; Kellogg, R G; Kennedy, B W; Kim, D H; Klein, K; Klier, A; Kluth, S; Kobayashi, T; Kobel, M; Kokott, T P; Komamiya, S; Kowalewski, R V; Kramer, T; Kress, T; Krieger, P; Von Krogh, J; Krop, D; Kühl, T; Kupper, M; Kyberd, P; Lafferty, G D; Landsman, Hagar Yaël; Lanske, D; Lawson, I; Layter, J G; Leins, A; Lellouch, Daniel; Letts, J; Levinson, L; Lillich, J; Littlewood, C; Lloyd, S L; Loebinger, F K; Lü, J; Ludwig, J; Macchiolo, A; MacPherson, A L; Mader, W; Marcellini, S; Marchant, T E; Martin, A J; Martin, J P; Martínez, G; Masetti, G; Mashimo, T; Mättig, P; McDonald, W J; McKenna, J A; McMahon, T J; McPherson, R A; Meijers, F; Méndez-Lorenzo, P; Menges, W; Merritt, F S; Mes, H; Michelini, Aldo; Mihara, S; Mikenberg, G; Miller, D J; Moed, S; Mohr, W; Mori, T; Mutter, A; Nagai, K; Nakamura, I; Neal, H A; Nisius, R; O'Neale, S W; Oh, A; Okpara, A N; Oreglia, M J; Orito, S; Pahl, C; Pásztor, G; Pater, J R; Patrick, G N; Pilcher, J E; Pinfold, James L; Plane, D E; Poli, B; Polok, J; Pooth, O; Quadt, A; Rabbertz, K; Rembser, C; Renkel, P; Rick, Hartmut; Rodning, N L; Roney, J M; Rosati, S; Roscoe, K; Rozen, Y; Runge, K; Rust, D R; Sachs, K; Saeki, T; Sahr, O; Sarkisyan-Grinbaum, E; Schaile, A D; Schaile, O; Scharff-Hansen, P; Schröder, M; Schumacher, M; Schwick, C; Scott, W G; Seuster, R; Shears, T G; Shen, B C; Shepherd-Themistocleous, C H; Sherwood, P; Skuja, A; Smith, A M; Snow, G A; Sobie, Randall J; Söldner-Rembold, S; Spagnolo, S; Spanó, F; Sproston, M; Stahl, A; Stephens, K; Strom, D; Ströhmer, R; Stumpf, L; Surrow, B; Tarem, S; Tasevsky, M; Taylor, R J; Teuscher, R; Thomas, J; Thomson, M A; Torrence, E; Toya, D; Trefzger, T M; Tricoli, A; Trigger, I; Trócsányi, Z L; Tsur, E; Turner-Watson, M F; Ueda, I; Ujvári, B; Vachon, B; Vollmer, C F; Vannerem, P; Verzocchi, M; Voss, H; Vossebeld, Joost Herman; Waller, D; Ward, C P; Ward, D R; Watkins, P M; Watson, A T; Watson, N K; Wells, P S; Wengler, T; Wermes, N; Wetterling, D; Wilson, G W; Wilson, J A; Wyatt, T R; Yamashita, S; Zacek, V; Zer-Zion, D; 10.1007/s100520200926

    2002-01-01T23:59:59.000Z

    The charged particle multiplicities of two- and three-jet events from the reaction e+e- -> Z0 -> hadrons are measured for Z0 decays to light quark (uds) flavors. Using recent theoretical expressions to account for biases from event selection, results corresponding to unbiased gluon jets are extracted over a range of jet energies from about 11 to 30 GeV. We find consistency between these results and direct measurements of unbiased gluon jet multiplicity from upsilon and Z0 decays. The unbiased gluon jet data including the direct measurements are compared to corresponding results for quark jets. We perform fits based on analytic expressions for particle multiplicity in jets to determine the ratio r = Ng/Nq of multiplicities between gluon and quark jets as a function of energy. We also determine the ratio of slopes, r(1) = (dNg/dy)/(dNq/dy), and of curvatures, r(2) = (d2Ng/dy2)/(d2Nq/dy2), where y specifies the energy scale. At 30 GeV, we find r = 1.422 +/- 0.051, r(1) = 1.761 +/- 0.071 and r(2) = 1.98 +/- 0.13,...

  12. GLOBAL AND ADAPTIVE SCALING IN A SEPARABLE ...

    E-Print Network [OSTI]

    2007-10-19T23:59:59.000Z

    programs confirm that Adaptive Global Scaling subsumes former scaling ...... Then, the compact convex set B of symmetric matrices eigeinvalues of which.

  13. Sandia National Laboratories: characterizing Scaled Wind Farm...

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

    characterizing Scaled Wind Farm Technology facility inflow Characterizing Scaled Wind Farm Technology Facility Inflow On April 1, 2014, in Energy, News, News & Events, Partnership,...

  14. Multiple-shocks induced nanocrystallization in iron

    SciTech Connect (OSTI)

    Matsuda, Tomoki; Hirose, Akio [Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan); Sano, Tomokazu [Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan); JST, CREST, Suita, Osaka 565-0871 (Japan); Arakawa, Kazuto [JST, CREST, Suita, Osaka 565-0871 (Japan); Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue, Shimane 690-8504 (Japan)

    2014-07-14T23:59:59.000Z

    We found that multiple shots of femtosecond laser-driven shock pulses changed coarse crystalline iron grains with a size of 140??m into nanocrystals with a high density of dislocations, which had never been observed in conventional shock processes. We performed metallurgical microstructure observations using transmission electron microscopy (TEM) and hardness measurements using nanoindentation on cross-sections of shocked iron. TEM images showed that grains with sizes from 10?nm through 1??m exist within 2??m of the surface, where the dislocation density reached 2?×?10{sup 15?}m{sup ?2}. Results of the hardness measurements showed a significant increase in hardness in the nanocrystallized region. We suggest that the formation of a high density of dislocations, which is produced by a single shock, induces local three-dimensional pile-up by the multiple-shocks, which causes grain refinement at the nanoscale.

  15. Intravalley Multiple Scattering of Quasiparticles in Graphene

    E-Print Network [OSTI]

    J. Y. Vaishnav; Justin Q. Anderson; Jamie D. Walls

    2011-05-28T23:59:59.000Z

    We develop a theoretical description of intravalley scattering of quasiparticles in graphene from multiple short-range scatterers of size much greater than the carbon-carbon bond length. Our theory provides a method to rapidly calculate the Green's function in graphene for arbitrary configurations of scatterers. We demonstrate that non-collinear multiple scattering trajectories generate pseudospin rotations that alter quasiparticle interference, resulting in significant modifications to the shape, intensity, and pattern of the interference fringes in the local density of states (LDOS). We illustrate these effects via theoretical calculations of the LDOS for a variety of scattering configurations in single layer graphene. A clear understanding of impurity scattering in graphene is a step towards exploiting graphene's unique properties to build future devices.

  16. Experience with pipelined multiple instruction streams

    SciTech Connect (OSTI)

    Jordon, H.F.

    1984-01-01T23:59:59.000Z

    Pipelining has been used to implement efficient, high-speed vector computers. It is also an effective method for implementing multiprocessors. The Heterogeneous Element Processor (HEP) built by Denelcor Incorporated is the first commercially available computer system to use pipelining to implement multiple processes. This paper introduces the architecture and programming environment of the HEP and surveys a range of scientific applications programs for which parallel versions have been produced, tested, and analyzed on this computer. In all cases, the ideal of one instruction completion every pipeline step time is closely approached. Speed limitations in the parallel programs are more often a result of the extra code necessary to ensure synchronization than of actual synchronization lockout at execution time. The pipelined multiple instruction stream architecture is shown to cover a wide range of applications with good utilization of the parallel hardware.

  17. Multiple Scattering Measurements in the MICE Experiment

    SciTech Connect (OSTI)

    Carlisle, T.; Cobb, J.; /Oxford U.; Neuffer, D.; /Fermilab

    2012-05-01T23:59:59.000Z

    The international Muon Ionization Cooling Experiment (MICE), under construction at RAL, will test a prototype cooling channel for a future Neutrino Factory or Muon Collider. The cooling channel aims to achieve, using liquid hydrogen absorbers, a 10% reduction in transverse emittance. The change in 4D emittance will be determined with an accuracy of 1% by measuring muons individually. Step IV of MICE will make the first precise emittance-reduction measurements of the experiment. Simulation studies using G4MICE, based on GEANT4, find a significant difference in multiple scattering in low Z materials, compared with the standard expression quoted by the Particle Data Group. Direct measurement of multiple scattering using the scintillating-fibre trackers is found to be possible, but requires the measurement resolution to be unfolded from the data.

  18. Multiplicity features of adiabatic autothermal reactors

    SciTech Connect (OSTI)

    Lovo, M.; Balakotaiah, V. (Houston Univ., TX (United States). Dept. of Chemical Engineering)

    1992-01-01T23:59:59.000Z

    In this paper singularity theory, large activation energy asymptotic, and numerical methods are used to present a comprehensive study of the steady-state multiplicity features of three classical adiabatic autothermal reactor models: tubular reactor with internal heat exchange, tubular reactor with external heat exchange, and the CSTR with external heat exchange. Specifically, the authors derive the exact uniqueness-multiplicity boundary, determine typical cross-sections of the bifurcation set, and classify the different types of bifurcation diagrams of conversion vs. residence time. Asymptotic (limiting) models are used to determine analytical expressions for the uniqueness boundary and the ignition and extinction points. The analytical results are used to present simple, explicit and accurate expressions defining the boundary of the region of autothermal operation in the physical parameter space.

  19. Lamp method and apparatus using multiple reflections

    DOE Patents [OSTI]

    MacLennan, D.A.; Turner, B.; Kipling, K.

    1999-05-11T23:59:59.000Z

    A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible is disclosed. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture. 20 figs.

  20. Multiple solutions in supersymmetry and the Higgs

    E-Print Network [OSTI]

    Allanach, Ben C.

    2014-11-24T23:59:59.000Z

    Meeting Issue ‘Before, behind and beyond the discovery of the Higgs boson’. Subject Areas: particle physics, high energy physics Keywords: minimal supersymmetric standard model, technical hierarchy problem, constrained minimal supersymmetric standard model... been. We shall review the multiple solutions and illustrate their existence in a universal model of supersymmetry breaking. 1. Introduction to supersymmetry The recent discovery of the Higgs boson of mass 125–126 GeV at the Large Hadron Collider (LHC...

  1. Lamp method and apparatus using multiple reflections

    DOE Patents [OSTI]

    MacLennan, Donald A. (Butler, PA); Turner, Brian (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

    1999-01-01T23:59:59.000Z

    A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture.

  2. Alternatives for Helium-3 in Multiplicity Counters

    SciTech Connect (OSTI)

    Ely, James H.; Siciliano, Edward R.; Lintereur, Azaree T.; Swinhoe, Martyn T.

    2013-04-01T23:59:59.000Z

    Alternatives to helium-3 are being actively pursued due to the shortage and rising costs of helium-3. For safeguards applications, there are a number of ongoing investigations to find alternatives that provide the same capability in a cost-effective manner. One of the greatest challenges is to find a comparable alternative for multiplicity counters, since they require high efficiency and short collection or die-away times. Work has been progressing on investigating three commercially available alternatives for high efficiency multiplicity counters: boron trifluoride (BF3) filled proportional tubes, boron-lined proportional tubes, and lithium fluoride with zinc sulfide coated light guides. The baseline multiplicity counter used for the investigation is the Epithermal Neutron Multiplicity Counter with 121 helium-3 filled tubes at 10 atmosphere pressure, which is a significant capability to match. The primary tool for the investigation has been modeling and simulation using the Monte Carlo N-Particle eXtended (MCNPX) radiation transport program, with experiments to validate the models. To directly calculate the coincidence rates in boron-lined (and possibly other) detectors, the MCNPX code has been enhanced to allow the existing coincidence tally to be used with energy deposition rather than neutron capture reactions. This allows boron-lined detectors to be modeled more accurately. Variations of tube number and diameter along with variations in the amount of inter-tube moderator have been conducted for the BF3 and boron-lined cases. Tube pressure was investigated for BF3, up to two atmospheres, as well as optimal boron thickness in the boron-lined tubes. The lithium fluoride was modeled as sheets of material with light guides in between, and the number and thickness of the sheets investigated. The amount of light guide, which in this case doubles as a moderator, was also optimized. The results of these modeling and simulation optimization investigations are described and results presented.

  3. Radial velocities of southern visual multiple stars

    SciTech Connect (OSTI)

    Tokovinin, Andrei [Cerro Tololo Inter-American Observatory, Casilla 603, La Serena (Chile); Pribulla, Theodor [Astronomical Institute, Slovak Academy of Sciences, 059 60 Tatranská Lomnica (Slovakia); Fischer, Debra, E-mail: atokovinin@ctio.noao.edu, E-mail: pribulla@ta3.sk, E-mail: debra.fischer@gmail.com [Department of Astronomy, Yale University, New Haven, CT 06511 (United States)

    2015-01-01T23:59:59.000Z

    High-resolution spectra of visual multiple stars were taken in 2008–2009 to detect or confirm spectroscopic subsystems and to determine their orbits. Radial velocities of 93 late-type stars belonging to visual multiple systems were measured by numerical cross-correlation. We provide the individual velocities, the width, and the amplitude of the Gaussians that approximate the correlations. The new information on the multiple systems resulting from these data is discussed. We discovered double-lined binaries in HD 41742B, HD 56593C, and HD 122613AB, confirmed several other known subsystems, and constrained the existence of subsystems in some visual binaries where both components turned out to have similar velocities. The orbits of double-lined subsystems with periods of 148 and 13 days are computed for HD 104471 Aa,Ab and HD 210349 Aa,Ab, respectively. We estimate individual magnitudes and masses of the components in these triple systems and update the outer orbit of HD 104471 AB.

  4. MPACT Fast Neutron Multiplicity System Prototype Development

    SciTech Connect (OSTI)

    D.L. Chichester; S.A. Pozzi; J.L. Dolan; M.T. Kinlaw; S.J. Thompson; A.C. Kaplan; M. Flaska; A. Enqvist; J.T. Johnson; S.M. Watson

    2013-09-01T23:59:59.000Z

    This document serves as both an FY2103 End-of-Year and End-of-Project report on efforts that resulted in the design of a prototype fast neutron multiplicity counter leveraged upon the findings of previous project efforts. The prototype design includes 32 liquid scintillator detectors with cubic volumes 7.62 cm in dimension configured into 4 stacked rings of 8 detectors. Detector signal collection for the system is handled with a pair of Struck Innovative Systeme 16-channel digitizers controlled by in-house developed software with built-in multiplicity analysis algorithms. Initial testing and familiarization of the currently obtained prototype components is underway, however full prototype construction is required for further optimization. Monte Carlo models of the prototype system were performed to estimate die-away and efficiency values. Analysis of these models resulted in the development of a software package capable of determining the effects of nearest-neighbor rejection methods for elimination of detector cross talk. A parameter study was performed using previously developed analytical methods for the estimation of assay mass variance for use as a figure-of-merit for system performance. A software package was developed to automate these calculations and ensure accuracy. The results of the parameter study show that the prototype fast neutron multiplicity counter design is very nearly optimized under the restraints of the parameter space.

  5. Constant-mesh, multiple-shaft transmission

    SciTech Connect (OSTI)

    Rea, J.E.; Mills, D.D.; Sewell, J.S.

    1992-04-21T23:59:59.000Z

    This patent describes a multiple-shaft, constant-mesh transmission adapted to establish selectively a reverse torque delivery path and a forward drive torque delivery path and having a torque input means including a torque input shaft, a mainshaft aligned with the input shaft, a countershaft geared to the input shaft in spaced, parallel relationship with respect to the mainshaft, a torque output shaft joined to the mainshaft; multiple mainshaft gear elements journalled on the main airshaft, multiple cluster gear elements carried by the countershaft in meshing engagement with the mainshaft gear elements, one of the cluster gear elements being rotatably journalled on the countershaft; a reverse idle gear, a reverse gear journalled on the countershaft, the reverse idler gear being in constant mesh with the reverse gear and one of the mainshaft gear elements; first clutch means for connecting selectively the reverse gear and the countershaft; second synchronizer clutch means for connecting selectively the one of the mainshaft gear elements to the mainshaft; and third synchronizer clutch means for selectively connecting another of the mainshaft gear elements to the mainshaft; the first clutch means being a double-acting clutch with a first common axially movable clutch element adapted upon movement in one axial direction to drivably connected the reverse gear to the countershaft and adapted upon movement in the opposite axial direction to connect the one cluster gear element to the countershaft.

  6. Scaling Properties of Universal Tetramers

    SciTech Connect (OSTI)

    Hadizadeh, M. R.; Yamashita, M. T. [Instituto de Fisica Teorica, Universidade Estadual Paulista, 01140-070, Sao Paulo, SP (Brazil); Tomio, Lauro [Instituto de Fisica Teorica, Universidade Estadual Paulista, 01140-070, Sao Paulo, SP (Brazil); Instituto de Fisica, Universidade Federal Fluminense, 24210-346, Niteroi, RJ (Brazil); Delfino, A. [Instituto de Fisica, Universidade Federal Fluminense, 24210-346, Niteroi, RJ (Brazil); Frederico, T. [Instituto Tecnologico de Aeronautica, 12228-900, Sao Jose dos Campos, SP (Brazil)

    2011-09-23T23:59:59.000Z

    We evidence the existence of a universal correlation between the binding energies of successive four-boson bound states (tetramers), for large two-body scattering lengths (a), related to an additional scale not constrained by three-body Efimov physics. Relevant to ultracold atom experiments, the atom-trimer relaxation peaks for |a|{yields}{infinity} when the ratio between the tetramer and trimer energies is {approx_equal}4.6 and a new tetramer is formed. The new scale is also revealed for a<0 by the prediction of a correlation between the positions of two successive peaks in the four-atom recombination process.

  7. Mixed non-Gaussianity in multiple-DBI inflation

    SciTech Connect (OSTI)

    Emery, Jon; Tasinato, Gianmassimo; Wands, David, E-mail: jon.emery@port.ac.uk, E-mail: gianmassimo.tasinato@port.ac.uk, E-mail: david.wands@port.ac.uk [Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO1 3FX (United Kingdom)

    2013-05-01T23:59:59.000Z

    We study a model of multiple-field DBI inflation leading to mixed form of primordial non-Gaussianity, including equilateral and local bispectrum shapes. We present a general formalism based on the Hamilton-Jacobi approach, allowing us to go beyond slow-roll, combining the three-point function for the fields at Hubble-exit with the non-linear evolution of super-Hubble scales. We are able to obtain analytic results by taking a separable Ansatz for the Hubble rate. We find general expressions for both the equilateral and local type non-Gaussianity parameter f{sub NL}. The equilateral non-Gaussianity includes the usual enhancement for small sound speeds, but multiplied by an analytic factor which can lead to a suppression. We illustrate our results with two scenarios. In the first model, previously found to have detectable local non-Gaussianity, we find that the equilateral signal is not sufficiently suppressed to evade current observational bounds. In our second scenario we construct a model which exhibits both a detectable equilateral f{sub NL} and a negative local f{sub NL}.

  8. Unscented Kalman Filters for Multiple Target Tracking with Symmetric Measurement

    E-Print Network [OSTI]

    Lanterman, Aaron

    1 Unscented Kalman Filters for Multiple Target Tracking with Symmetric Measurement Equations measurement equation approach to multiple target tracking is revisited using unscented Kalman and particle measurement equation implementation relying upon an extended Kalman filter. Counterintuitive results

  9. Genetic associations with brain cortical thickness in multiple sclerosis

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    onset of multiple sclerosis. Brain 131, 808–817. Georgala,in multiple sclerosis. Brain 126, Shannon, P. , Markiel,Genes, Brain and Behavior (2015) 14: 217–227 doi:

  10. Breakdown Visualization: Multiple Foci Polyarchies of Values and Attributes

    E-Print Network [OSTI]

    breakdown visualization, financial visualization, polyarchy structure, multiple foci, visual decompositionBreakdown Visualization: Multiple Foci Polyarchies of Values and Attributes Sandeep Prabhakar Department of Computer Science Virginia Polytechnic Institute and State University Blacksburg, VA 24061

  11. Tracking Multiple Targets Using Binary Decisions from Wireless Sensor Networks

    E-Print Network [OSTI]

    Michailidis, George

    Tracking Multiple Targets Using Binary Decisions from Wireless Sensor Networks Natallia Katenka- tions. 1 #12;Keywords: wireless sensor networks, binary data, target tracking, multiple targets, penal- ized maximum likelihood 1 Introduction and Problem Motivation Wireless Sensor Networks (WSN) have

  12. U-277: Google Chrome Multiple Flaws Let Remote Users Execute...

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

    7: Google Chrome Multiple Flaws Let Remote Users Execute Arbitrary Code U-277: Google Chrome Multiple Flaws Let Remote Users Execute Arbitrary Code October 9, 2012 - 6:00am Addthis...

  13. Scaling the Web Composing Web

    E-Print Network [OSTI]

    Menascé, Daniel A.

    Scaling the Web Composing Web Services:A QoS View A n Internet application can invoke several ser- vices -- a stock-trading Web service, for example, could invoke a payment service, which could then invoke an authentication service. Such a scenario is called a composite Web service, and it can

  14. Scaling of pressurized fluidized beds

    SciTech Connect (OSTI)

    Guralnik, S.; Glicksman, L.R.

    1994-10-01T23:59:59.000Z

    The project has two primary objectives. The first is to verify a set of hydrodynamic scaling relationships for commercial pressurized fluidized bed combustors (PFBC). The second objective is to investigate solids mixing in pressurized bubbling fluidized beds. American Electric Power`s (AEP) Tidd combined-cycle demonstration plant will provide time-varying pressure drop data to serve as the basis for the scaling verification. The verification will involve demonstrating that a properly scaled cold model and the Tidd PFBC exhibit hydrodynamically similar behavior. An important issue in PFBC design is the spacing of fuel feed ports. The feed spacing is dictated by the fuel distribution and the mixing characteristics within the bed. After completing the scaling verification, the cold model will be used to study the characteristics of PFBCs. A thermal tracer technique will be utilized to study mixing both near the fuel feed region and in the far field. The results allow the coal feed and distributor to be designed for optimal heating.

  15. Search for Short Lived Particles in High Multiplicity Environment

    E-Print Network [OSTI]

    Marek Gazdzicki; Waldemar Retyk; Jan Pluta

    1999-04-14T23:59:59.000Z

    A method of statistical selection of short lived particles in high multiplicity nucleus-nucleus collisions is discussed.

  16. Visualization of Large-Scale Distributed Data

    E-Print Network [OSTI]

    Johnson, Andrew

    that are now considered the "lenses" for examining large-scale data. THE LARGE-SCALE DATA VISUALIZATIONVisualization of Large-Scale Distributed Data Jason Leigh1 , Andrew Johnson1 , Luc Renambot1 representation of data and the interactive manipulation and querying of the visualization. Large-scale data

  17. Brane World Models Need Low String Scale

    E-Print Network [OSTI]

    Antoniadis, Ignatios; Calmet, Xavier

    2011-01-01T23:59:59.000Z

    Models with large extra dimensions offer the possibility of the Planck scale being of order the electroweak scale, thus alleviating the gauge hierarchy problem. We show that these models suffer from a breakdown of unitarity at around three quarters of the low effective Planck scale. An obvious candidate to fix the unitarity problem is string theory. We therefore argue that it is necessary for the string scale to appear below the effective Planck scale and that the first signature of such models would be string resonances. We further translate experimental bounds on the string scale into bounds on the effective Planck scale.

  18. Multiple Steady States in Ideal Two-Product Distillation

    E-Print Network [OSTI]

    Skogestad, Sigurd

    Multiple Steady States in Ideal Two-Product Distillation Elling W. Jacobsen and Sigurd Skogestad Chemical Engineering Dept., University of Trondheim-NTH, N-7034 Trondheim, Norway Simple distillation and compositions in the column. Introduction Multiple steady states (multiplicity) in distillation columns have

  19. Aalborg Universitet Hierarchical Control for Multiple DC Microgrids Clusters

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    Aalborg Universitet Hierarchical Control for Multiple DC Microgrids Clusters Shafiee, Qobad Control for Multiple DC Microgrids Clusters. I E E E Transactions on Energy Conversion. General rights, J. C. Vasquez, and J. M. Guerrero, "Hierarchical Control for Multiple DC-Microgrids Clusters," IEEE

  20. Multiplicity Distributions in QCD at Very High Energies

    E-Print Network [OSTI]

    I. M. Dremin

    1994-08-18T23:59:59.000Z

    Recent results in QCD on multiplicity distributions are briefly reviewed. QCD is able to predict very tiny features of multiplicity distributions which demonstrate that the negative binomial distribution (and, more generally, any infinitely divisible distribution) is inappropriate for precise description of experimental data. New fits of high energy multiplicity distributions can be derived.

  1. Statistical estimation of multiple faults in aircraft gas turbine engines

    E-Print Network [OSTI]

    Ray, Asok

    415 Statistical estimation of multiple faults in aircraft gas turbine engines S Sarkar, C Rao of multiple faults in aircraft gas-turbine engines, based on a statistical pattern recognition tool called commercial aircraft engine. Keywords: aircraft propulsion, gas turbine engines, multiple fault estimation

  2. San Dieguito Citizen Science Multiple Species Monitoring Program 1 San Dieguito Citizen Science Multiple Species Monitoring Program

    E-Print Network [OSTI]

    Wang, Deli

    San Dieguito Citizen Science Multiple Species Monitoring Program 1 San Dieguito Citizen Science Multiple Species Monitoring Program The goal from current citizen science groups (such as Audubon and SD Tracking Team

  3. Just enough inflation: power spectrum modifications at large scales

    E-Print Network [OSTI]

    Michele Cicoli; Sean Downes; Bhaskar Dutta; Francisco G. Pedro; Alexander Westphal

    2014-07-03T23:59:59.000Z

    We show that models of `just enough' inflation, where the slow-roll evolution lasted only $50-60$ e-foldings, feature modifications of the CMB power spectrum at large angular scales. We perform a systematic and model-independent analysis of any possible non-slow-roll background evolution prior to the final stage of slow-roll inflation. We find a high degree of universality since most common backgrounds like fast-roll evolution, matter or radiation-dominance give rise to a power loss at large angular scales and a peak together with an oscillatory behaviour at scales around the value of the Hubble parameter at the beginning of slow-roll inflation. Depending on the value of the equation of state parameter, different pre-inflationary epochs lead instead to an enhancement of power at low-$\\ell$, and so seem disfavoured by recent observational hints for a lack of CMB power at $\\ell\\lesssim 40$. We also comment on the importance of initial conditions and the possibility to have multiple pre-inflationary stages.

  4. Recent Accomplishments in the Irradiation Testing of Engineering-Scale Monolithic Fuel Specimens

    SciTech Connect (OSTI)

    N.E. Woolstenhulme; D.M. Wachs; M.K. Meyer; H.W. Glunz; R.B. Nielson

    2012-10-01T23:59:59.000Z

    The US fuel development team is focused on qualification and demonstration of the uranium-molybdenum monolithic fuel including irradiation testing of engineering-scale specimens. The team has recently accomplished the successful irradiation of the first monolithic multi-plate fuel element assembly within the AFIP-7 campaign. The AFIP-6 MKII campaign, while somewhat truncated by hardware challenges, exhibited successful irradiation of a large-scale monolithic specimen under extreme irradiation conditions. The channel gap and ultrasonic data are presented for AFIP-7 and AFIP-6 MKII, respectively. Finally, design concepts are summarized for future irradiations such as the base fuel demonstration and design demonstration experiment campaigns.

  5. Multiple higher-order singularities and iso-dynamics in a simple glass-former model

    E-Print Network [OSTI]

    Nicoletta Gnan; Gayatri Das; Matthias Sperl; Francesco Sciortino; Emanuela Zaccarelli

    2014-07-15T23:59:59.000Z

    We investigate the slow dynamics of a colloidal model with two repulsive length scales, whose interaction potential is the sum of a hard-core and a square shoulder. Despite the simplicity of the interactions, Mode-Coupling theory predicts a complex dynamic scenario: a fluid-glass line with two reentrances and a glass-glass line ending with multiple higher-order ($A_3$ or $A_4$) singularities. In this work we verify the existence of the two $A_4$ points by numerical simulations, observing subdiffusive behaviour of the mean-square displacement and logarithmic decay of the density correlators. Surprisingly, we also discover a novel dynamic behaviour generated by the competition between the two higher-order singularities. This results in the presence of special loci along which the dynamics is identical \\textit{at all} length and time scales.

  6. LARGE-SCALE KALMAN FILTERING USING THE LIMITED MEMORY BFGS H. AUVINEN, J. M. BARDSLEY, H. HAARIO , AND T. KAURANNE.

    E-Print Network [OSTI]

    Bardsley, John

    LARGE-SCALE KALMAN FILTERING USING THE LIMITED MEMORY BFGS METHOD H. AUVINEN, J. M. BARDSLEY, H. HAARIO , AND T. KAURANNE. Abstract. The standard formulations of the Kalman filter (KF) and extended Kalman filter (EKF) require the storage and multiplication of matrices of size n × n, where n is the size

  7. Expression of multiple proteins in transgenic plants

    DOE Patents [OSTI]

    Vierstra, Richard D. (Madison, WI); Walker, Joseph M. (Madison, WI)

    2002-01-01T23:59:59.000Z

    A method is disclosed for the production of multiple proteins in transgenic plants. A DNA construct for introduction into plants includes a provision to express a fusion protein of two proteins of interest joined by a linking domain including plant ubiquitin. When the fusion protein is produced in the cells of a transgenic plant transformed with the DNA construction, native enzymes present in plant cells cleave the fusion protein to release both proteins of interest into the cells of the transgenic plant. Since the proteins are produced from the same fusion protein, the initial quantities of the proteins in the cells of the plant are approximately equal.

  8. Analysis of Dynamic Multiplicity Fluctuations at PHOBOS

    E-Print Network [OSTI]

    Zhengwei Chai; for the PHOBOS Collaboration

    2005-09-20T23:59:59.000Z

    This paper presents the analysis of the dynamic fluctuations in the inclusive charged particle multiplicity measured by PHOBOS for Au+Au collisions at sqrt(s_NN)=200$GeV within the pseudo-rapidity range of -3analysis is presented, together with the discussion of their physics meaning. Then the procedure for the extraction of dynamic fluctuations is described. Some preliminary results are included to illustrate the correlation features of the fluctuation observable. New dynamic fluctuations results will be available in a later publication.

  9. Experience with pipelined multiple instruction streams

    SciTech Connect (OSTI)

    Jordan, H.F.

    1984-01-01T23:59:59.000Z

    The authors introduces the architecture and programming environment of the heterogeneous element processor (HEP) and surveys a range of scientific applications programs for which parallel versions have been produced, tested, and analyzed on this computer. In all cases, the ideal of one instruction completion every pipeline step time is closely approached. Speed limitations in the parallel programs are more often a result of the extra code necessary to ensure synchronization than of actual synchronization lockout at execution time. The pipelined multiple instruction stream architecture is shown to cover a wide range of applications with good utilization of the parallel hardware. 35 references.

  10. Multiple frequency method for operating electrochemical sensors

    DOE Patents [OSTI]

    Martin, Louis P. (San Ramon, CA)

    2012-05-15T23:59:59.000Z

    A multiple frequency method for the operation of a sensor to measure a parameter of interest using calibration information including the steps of exciting the sensor at a first frequency providing a first sensor response, exciting the sensor at a second frequency providing a second sensor response, using the second sensor response at the second frequency and the calibration information to produce a calculated concentration of the interfering parameters, using the first sensor response at the first frequency, the calculated concentration of the interfering parameters, and the calibration information to measure the parameter of interest.

  11. Entropic uncertainty relations for multiple measurements

    E-Print Network [OSTI]

    Shang Liu; Liang-Zhu Mu; Heng Fan

    2014-11-23T23:59:59.000Z

    We present the entropic uncertainty relations for multiple measurement settings in quantum mechanics. Those uncertainty relations are obtained for both cases with and without the presence of quantum memory. They take concise forms which can be proven in a unified method and easy to calculate. Our results recover the well known entropic uncertainty relations for two observables, which show the uncertainties about the outcomes of two incompatible measurements. Those uncertainty relations are applicable in both foundations of quantum theory and the security of many quantum cryptographic protocols.

  12. Improving the quality of multiple sequence alignment

    E-Print Network [OSTI]

    Lu, Yue

    2009-05-15T23:59:59.000Z

    sites identification (Taylor, 1987; Carillo and Lipman, 1988; Thompson et al., 1994; Gotoh, 1996; Morgenstern et al., 1996; Stoye, 1998; Notredame et al., 2000; Lee et al., 2002; Edgar, 2004; Van Walle et al., 2004; Do et al., 2005). In recent years... and the next two most similar alignments are repeatedly combined until a single multiple alignment is obtained (Feng and Doolittle, 1987; Thompson et al., 1994; Notredame et al., 2000; Edgar 2004; Do et al., 2005; Pei and Grishin, 2006; Roshan and Livesay...

  13. Comments on Multiple M2-branes

    E-Print Network [OSTI]

    Jonathan Bagger; Neil Lambert

    2008-02-02T23:59:59.000Z

    Recently a three-dimensional field theory was derived that is consistent with all the symmetries expected of the worldvolume action for multiple M2-branes. In this note we examine several physical predictions of this model and show that they are in agreement with expected M2-brane dynamics. In particular, we discuss the quantization of the Chern-Simons coefficient, the vacuum moduli space, a massive deformation leading to fuzzy three-sphere vacua, and a possible large n limit. In this large n limit, the fuzzy funnel solution correctly reproduces the mass of an M5-brane.

  14. Domain wall cosmology and multiple accelerations

    SciTech Connect (OSTI)

    Lee, Bum-Hoon [CQUeST, Sogang University, Seoul, Korea 121-742 (Korea, Republic of); Department of Physics, Sogang University, Seoul, 121-742 (Korea, Republic of); Lee, Wonwoo; Nam, Siyoung; Park, Chanyong [CQUeST, Sogang University, Seoul, 121-742 (Korea, Republic of)

    2007-05-15T23:59:59.000Z

    We classify the cosmological behaviors of the domain wall under junctions between two spacetimes in terms of various parameters: cosmological constants of bulk spacetime, a tension of a domain wall, and mass parameters of the black-hole-type metric. Especially, we consider the false-true vacuum-type junctions and the domain wall connecting between an inner AdS space and an outer AdS Reissner-Nordstroem black hole. We find that there exists a solution to the junction equations with multiple accelerations.

  15. Multiple volume compressor for hot gas engine

    DOE Patents [OSTI]

    Stotts, Robert E. (Clifton Park, NY)

    1986-01-01T23:59:59.000Z

    A multiple volume compressor for use in a hot gas (Stirling) engine having a plurality of different volume chambers arranged to pump down the engine when decreased power is called for and return the working gas to a storage tank or reservoir. A valve actuated bypass loop is placed over each chamber which can be opened to return gas discharged from the chamber back to the inlet thereto. By selectively actuating the bypass valves, a number of different compressor capacities can be attained without changing compressor speed whereby the capacity of the compressor can be matched to the power available from the engine which is used to drive the compressor.

  16. Multiple-scattering series for color transparency

    SciTech Connect (OSTI)

    Greenberg, W.R.; Miller, G.A. (Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States))

    1993-03-01T23:59:59.000Z

    Cold transparency (CT) depends on the formation of a wave packet of small spatial extent. It is useful to interpret experimental searches for CT with a multiple-scattering series based on wave-packet--nucleon scattering instead of the standard one using nucleon-nucleon scattering. We develop several new techniques which are valid for differing ranges of energy. These techniques are applied to verify some early approximations, study new forms of the wave-packet--nucleon interaction, examine effects of treating wave packets of nonzero size, and predict the production of [ital N][sup *]'s in electron scattering experiments.

  17. 6. Multiple sequence alignment methods In Chapter 5, we assumed that a reasonable multiple sequence alignment was already

    E-Print Network [OSTI]

    Xie, Jun

    6. Multiple sequence alignment methods In Chapter 5, we assumed that a reasonable multiple sequence sequences. Biologists produce high quality multiple sequence alignments by hand using expert knowledge of protein sequence evolution. Importance factors include: specific sorts of columns in alignments

  18. The scale of cosmic isotropy

    SciTech Connect (OSTI)

    Marinoni, C.; Bel, J.; Buzzi, A., E-mail: christian.marinoni@cpt.univ-mrs.fr, E-mail: Julien.Bel@cpt.univ-mrs.fr, E-mail: Adeline.Buzzi@cpt.univ-mrs.fr [Centre de Physique Théorique, Aix-Marseille Université, CNRS UMR 7332, case 907, F-13288 Marseille (France)

    2012-10-01T23:59:59.000Z

    The most fundamental premise to the standard model of the universe states that the large-scale properties of the universe are the same in all directions and at all comoving positions. Demonstrating this hypothesis has proven to be a formidable challenge. The cross-over scale R{sub iso} above which the galaxy distribution becomes statistically isotropic is vaguely defined and poorly (if not at all) quantified. Here we report on a formalism that allows us to provide an unambiguous operational definition and an estimate of R{sub iso}. We apply the method to galaxies in the Sloan Digital Sky Survey (SDSS) Data Release 7, finding that R{sub iso} ? 150h{sup ?1}Mpc. Besides providing a consistency test of the Copernican principle, this result is in agreement with predictions based on numerical simulations of the spatial distribution of galaxies in cold dark matter dominated cosmological models.

  19. Emerging universe from scale invariance

    SciTech Connect (OSTI)

    Del Campo, Sergio; Herrera, Ramón [Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Casilla 4059, Valparaíso (Chile); Guendelman, Eduardo I. [Physics Department, Ben Gurion University of the Negev, Beer Sheva 84105 (Israel); Labraña, Pedro, E-mail: sdelcamp@ucv.cl, E-mail: guendel@bgu.ac.il, E-mail: ramon.herrera@ucv.cl, E-mail: plabrana@ubiobio.cl [Departamento de Física, Universidad del Bío Bío, Avenida Collao 1202, Casilla 5-C, Concepción (Chile)

    2010-06-01T23:59:59.000Z

    We consider a scale invariant model which includes a R{sup 2} term in action and show that a stable ''emerging universe'' scenario is possible. The model belongs to the general class of theories, where an integration measure independent of the metric is introduced. To implement scale invariance (S.I.), a dilaton field is introduced. The integration of the equations of motion associated with the new measure gives rise to the spontaneous symmetry breaking (S.S.B) of S.I. After S.S.B. of S.I. in the model with the R{sup 2} term (and first order formalism applied), it is found that a non trivial potential for the dilaton is generated. The dynamics of the scalar field becomes non linear and these non linearities are instrumental in the stability of some of the emerging universe solutions, which exists for a parameter range of the theory.

  20. Use of dual plane PIV to assess scale-by-scale energy budgets in wall turbulence

    E-Print Network [OSTI]

    Marusic, Ivan

    Use of dual plane PIV to assess scale-by-scale energy budgets in wall turbulence N Saikrishnan1-layer, the buffer region, the logarithmic region and the outer region. In the space of scales, turbulent energy is produced at the large scales and transferred to smaller scales, finally dissipating in the form of heat

  1. Chameleon gravity on cosmological scales

    E-Print Network [OSTI]

    H. Farajollahi; A. Salehi

    2012-06-25T23:59:59.000Z

    In conventional approach to the chameleon mechanism, by assuming a static and spherically symmetric solutions in which matter density and chameleon field are given by $\\rho=\\rho(r)$ and $\\phi=\\phi(r)$, it has been shown that mass of chameleon field is matter density-dependent. In regions of high matter density such as earth, chameleon field is massive, in solar system it is low and in cosmological scales it is very low. In this article we revisit the mechanism in cosmological scales by assuming a redshift dependence of the matter density and chameleon field, i.e. $\\rho=\\rho(z)$, $\\phi=\\phi(z)$. To support our analysis, we best fit the model parameters with the observational data. The result shows that in cosmological scales, the mass of chameleon field increases with the redshift, i.e. more massive in higher redshifts. We also find that in both cases of power-law and exponential potential function, the current universe acceleration can be explained by the low mass chameleon field. In comparison with the high redshift observational data, we also find that the model with power-law potential function is in better agreement with the observational data.

  2. Transition physics and scaling overview

    SciTech Connect (OSTI)

    Carlstrom, T.N.

    1995-12-01T23:59:59.000Z

    This paper presents an overview of recent experimental progress towards understanding H-mode transition physics and scaling. Terminology and techniques for studying H-mode are reviewed and discussed. The model of shear E x B flow stabilization of edge fluctuations at the L-H transition is gaining wide acceptance and is further supported by observations of edge rotation on a number of new devices. Observations of poloidal asymmetries of edge fluctuations and dephasing of density and potential fluctuations after the transition pose interesting challenges for understanding H-mode physics. Dedicated scans to determine the scaling of the power threshold have now been performed on many machines. A dear B{sub t} dependence is universally observed but dependence on the line averaged density is complicated. Other dependencies are also reported. Studies of the effect of neutrals and error fields on the power threshold are under investigation. The ITER threshold database has matured and offers guidance to the power threshold scaling issues relevant to next-step devices.

  3. Preliminary Scaling Estimate for Select Small Scale Mixing Demonstration Tests

    SciTech Connect (OSTI)

    Wells, Beric E.; Fort, James A.; Gauglitz, Phillip A.; Rector, David R.; Schonewill, Philip P.

    2013-09-12T23:59:59.000Z

    The Hanford Site double-shell tank (DST) system provides the staging location for waste that will be transferred to the Hanford Tank Waste Treatment and Immobilization Plant (WTP). Specific WTP acceptance criteria for waste feed delivery describe the physical and chemical characteristics of the waste that must be met before the waste is transferred from the DSTs to the WTP. One of the more challenging requirements relates to the sampling and characterization of the undissolved solids (UDS) in a waste feed DST because the waste contains solid particles that settle and their concentration and relative proportion can change during the transfer of the waste in individual batches. A key uncertainty in the waste feed delivery system is the potential variation in UDS transferred in individual batches in comparison to an initial sample used for evaluating the acceptance criteria. To address this uncertainty, a number of small-scale mixing tests have been conducted as part of Washington River Protection Solutions’ Small Scale Mixing Demonstration (SSMD) project to determine the performance of the DST mixing and sampling systems.

  4. Membranes for nanometer-scale mass fast transport

    DOE Patents [OSTI]

    Bakajin, Olgica (San Leandro, CA); Holt, Jason (Berkeley, CA); Noy, Aleksandr (Belmont, CA); Park, Hyung Gyu (Oakland, CA)

    2011-10-18T23:59:59.000Z

    Nanoporous membranes comprising single walled, double walled, and multiwalled carbon nanotubes embedded in a matrix material were fabricated for fluid mechanics and mass transfer studies on the nanometer scale and commercial applications. Average pore size can be 2 nm to 20 nm, or seven nm or less, or two nanometers or less. The membrane can be free of large voids spanning the membrane such that transport of material such as gas or liquid occurs exclusively through the tubes. Fast fluid, vapor, and liquid transport are observed. Versatile micromachining methods can be used for membrane fabrication. A single chip can comprise multiple membranes. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation.

  5. Multiple hearth furnace for reducing iron oxide

    DOE Patents [OSTI]

    Brandon, Mark M. (Charlotte, NC); True, Bradford G. (Charlotte, NC)

    2012-03-13T23:59:59.000Z

    A multiple moving hearth furnace (10) having a furnace housing (11) with at least two moving hearths (20) positioned laterally within the furnace housing, the hearths moving in opposite directions and each moving hearth (20) capable of being charged with at least one layer of iron oxide and carbon bearing material at one end, and being capable of discharging reduced material at the other end. A heat insulating partition (92) is positioned between adjacent moving hearths of at least portions of the conversion zones (13), and is capable of communicating gases between the atmospheres of the conversion zones of adjacent moving hearths. A drying/preheat zone (12), a conversion zone (13), and optionally a cooling zone (15) are sequentially positioned along each moving hearth (30) in the furnace housing (11).

  6. Multiple channel optical data acquisition system

    DOE Patents [OSTI]

    Fasching, G.E.; Goff, D.R.

    1985-02-22T23:59:59.000Z

    A multiple channel optical data acquisition system is provided in which a plurality of remote sensors monitoring specific process variable are interrogated by means of a single optical fiber connecting the remote station/sensors to a base station. The remote station/sensors derive all power from light transmitted through the fiber from the base station. Each station/sensor is individually accessed by means of a light modulated address code sent over the fiber. The remote station/sensors use a single light emitting diode to both send and receive light signals to communicate with the base station and provide power for the remote station. The system described can power at least 100 remote station/sensors over an optical fiber one mile in length.

  7. Multiple predictor smoothing methods for sensitivity analysis.

    SciTech Connect (OSTI)

    Helton, Jon Craig; Storlie, Curtis B.

    2006-08-01T23:59:59.000Z

    The use of multiple predictor smoothing methods in sampling-based sensitivity analyses of complex models is investigated. Specifically, sensitivity analysis procedures based on smoothing methods employing the stepwise application of the following nonparametric regression techniques are described: (1) locally weighted regression (LOESS), (2) additive models, (3) projection pursuit regression, and (4) recursive partitioning regression. The indicated procedures are illustrated with both simple test problems and results from a performance assessment for a radioactive waste disposal facility (i.e., the Waste Isolation Pilot Plant). As shown by the example illustrations, the use of smoothing procedures based on nonparametric regression techniques can yield more informative sensitivity analysis results than can be obtained with more traditional sensitivity analysis procedures based on linear regression, rank regression or quadratic regression when nonlinear relationships between model inputs and model predictions are present.

  8. Conjugate gradient algorithms using multiple recursions

    SciTech Connect (OSTI)

    Barth, T.; Manteuffel, T.

    1996-12-31T23:59:59.000Z

    Much is already known about when a conjugate gradient method can be implemented with short recursions for the direction vectors. The work done in 1984 by Faber and Manteuffel gave necessary and sufficient conditions on the iteration matrix A, in order for a conjugate gradient method to be implemented with a single recursion of a certain form. However, this form does not take into account all possible recursions. This became evident when Jagels and Reichel used an algorithm of Gragg for unitary matrices to demonstrate that the class of matrices for which a practical conjugate gradient algorithm exists can be extended to include unitary and shifted unitary matrices. The implementation uses short double recursions for the direction vectors. This motivates the study of multiple recursion algorithms.

  9. Multiplicity features of nonadiabatic, autothermal tubular reactors

    SciTech Connect (OSTI)

    Lovo, M.; Balakotaiah, V. (Houston Univ., TX (United States). Dept. of Chemical Engineering)

    1992-01-01T23:59:59.000Z

    Singularity theory is combined with asymptotic analysis to determine the exact uniqueness-multiplicity boundary and ignition and extinction locus for the non-adiabatic, autothermal tubular reactor model. It is found that the steady-state behavior of the nonadiabatic reactor is described by the two limiting cases of adiabatic and strongly cooled models. The adiabatic case has been examined in a previous study. In this paper, the authors develop limiting models to describe the strongly cooled asymptotes. The authors also classify the different types of bifurcation diagrams of conversion vs. residence time using the results of singularity theory with a distinguished parameter. Analytical criteria are developed for predicting the conditions under which autothermal operation is feasible when heat losses are significant.

  10. The frequency of planets in multiple systems

    E-Print Network [OSTI]

    M. Bonavita; S. Desidera

    2007-03-29T23:59:59.000Z

    The frequency of planets in binaries is an important issue in the field of extrasolar planet studies, because of its relevance in estimating of the global planet population of our Galaxy and the clues it can give to our understanding of planet formation and evolution. However, only preliminary estimates are available in the literature. We analyze and compare the frequency of planets in multiple systems to the frequency of planets orbiting single stars. We also try to highlight possible connections between the frequency of planets and the orbital parameters of the binaries (such as the periastron and mass ratio.) A literature search was performed for binaries and multiple systems among the stars of the sample with uniform planet detectability defined by Fischer & Valenti (2005), and 202 of the 850 stars of the sample turned out to be binaries, allowing a statistical comparison of the frequency of planets in binaries and single stars and a study of the run of the planet frequency as a function of the binary separation. We found that the global frequency of planets in the binaries of the sample is not statistically different from that of planets in single stars. Even conservatively taking the probable incompleteness of binary detection in our sample into account, we estimate that the frequency of planets in binaries can be no more than a factor of three lower than that of planets in single stars. There is no significant dependence of planet frequency on the binary separation, except for a lower value of frequency for close binaries. However, this is probably not as low as required to explain the presence of planets in close binaries only as the result of modifications of the binary orbit after the planet formation.

  11. Holographic Superconductors with Lifshitz Scaling

    E-Print Network [OSTI]

    E. J. Brynjolfsson; U. H. Danielsson; L. Thorlacius; T. Zingg

    2010-03-27T23:59:59.000Z

    Black holes in asymptotically Lifshitz spacetime provide a window onto finite temperature effects in strongly coupled Lifshitz models. We add a Maxwell gauge field and charged matter to a recently proposed gravity dual of 2+1 dimensional Lifshitz theory. This gives rise to charged black holes with scalar hair, which correspond to the superconducting phase of holographic superconductors with z > 1 Lifshitz scaling. Along the way we analyze the global geometry of static, asymptotically Lifshitz black holes at arbitrary critical exponent z > 1. In all known exact solutions there is a null curvature singularity in the black hole region, and, by a general argument, the same applies to generic Lifshitz black holes.

  12. Scaled Solar | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to:RoscommonSBYSaltonSprings,Sardinia,SawasdeeSayreville, NewScaled

  13. Scale Models & Wind Turbines

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin ofEnergy atLLC - FE DKT. 10-160-LNG -EnergyProcess HeatingatSawDepartment ofScale

  14. Small-Scale Energy Loan Program

    Broader source: Energy.gov [DOE]

    The Oregon Small-Scale Energy Loan Program (SELP) - created in 1981 after voters approved a constitutional amendment authorizing the sale of bonds to finance small-scale, local energy projects - is...

  15. Proton Decay and the Planck Scale

    E-Print Network [OSTI]

    Larson, Daniel T.

    2009-01-01T23:59:59.000Z

    LBNL- 56556 PROTON DECAY AND THE PLANCK SCALE DANIEL T.ph/0410035v1 2 Oct 2004 PROTON DECAY AND THE PLANCK SCALE ?without grand uni?cation, proton decay can be a powerful

  16. Scale in object and process ontologies 

    E-Print Network [OSTI]

    Reitsma, Femke; Bittner, Thomas

    2003-01-01T23:59:59.000Z

    Scale is of great importance to the analysis of real world phenomena, be they enduring objects or perduring processes. This paper presents a new perspective on the concept of scale by considering it within two complementary ...

  17. The No-Scale Multiverse at the LHC

    E-Print Network [OSTI]

    Tianjun Li; James A. Maxin; Dimitri V. Nanopoulos; Joel W. Walker

    2011-04-01T23:59:59.000Z

    We present a contemporary perspective on the String Landscape and the Multiverse of plausible string, M- and F-theory vacua, seeking to demonstrate a non-zero probability for the existence of a universe matching our own observed physics within the solution ensemble, arguing for the importance of No-Scale Supergravity as an essential common underpinning. Our context is a highly detailed phenomenological probe of No-Scale F-SU(5), a model representing the intersection of the F-lipped SU(5) X U(1)_X Grand Unified Theory (GUT) with extra TeV-Scale vector-like multiplets derived out of F-theory, and the dynamics of No-Scale Supergravity. We present a highly constrained "Golden" region with tan(beta) \\sim 15, m_t = 173.0 - 174.4 GeV, M_1/2 = 455 - 481 GeV, and M_V = 691 - 1020 GeV, which simultaneously satisfies all known experimental constraints. We supplement this bottom-up phenomenological perspective with a top-down theoretical analysis of the one-loop effective Higgs potential, achieving a striking consonance via the dynamic determination of tan(beta) and M_1/2 at the local secondary minimization of the spontaneously broken electroweak Higgs vacuum V_min. We present the distinctive signatures of No-Scale F-SU(5) at the LHC, where a light stop and gluino are expected to generate a surplus of ultra-high multiplicity (>= 9) hadronic jet events. We propose modest alterations to the canonical background selection cut strategy which would enhance resolution of these events, while readily suppressing the contribution of all Standard Model processes, and allowing a clear differentiation from competing models of new physics. Detection by the LHC of the ultra-high jet signal would constitute a suggestive evocation of the intimately linked stringy origins of F-SU(5), and could provide a glimpse into the fundamental string moduli, and possibly even the workings of the No-Scale Multiverse.

  18. Scaling of bubble growth in a porous medium. Topical report

    SciTech Connect (OSTI)

    Satik, C.; Yortsos, Y.; Li, X. [Univ. of Southern California, Los Angeles, CA (United States). Dept. of Chemical Engineering

    1995-07-01T23:59:59.000Z

    Processes involving liquid-to-gas phase change in porous media are routinely encountered, for example in the recovery of oil, geothermal processes, nuclear waste disposal or enhanced heat transfer. They involve diffusion (and convection) in the pore space, driven by an imposed supersaturation in pressure or temperature. Phase change proceeds by nucleation and phase growth. Depending on pore surface roughness, a number of nucleation centers exist, thus phase growth occurs from a multitude of clusters. Contrary to growth in the bulk or in a Hele-Shaw cell, however, growth patterns in porous media are disordered and not compact. As in immiscible displacements, they reflect the underlying pore microstructure. The competition between multiple clusters is also different from the bulk. For example, cluster growth may be controlled by a combination of diffusion (e.g. Laplace equation in the quasi-static case) with percolation. Novel growth patterns axe expected from this competition. While multiple cluster growth is important, the simpler problem of single-bubble growth is still not well understood. In this section, we focus on the growth of a single bubble, subject to a fixed far-field supersaturation (e.g. by lowering the pressure in a supersaturated solution or by raising the temperature in a. superheated liquid). Our emphasis is on deriving a scaling theory for growth at conditions of quasi-static diffusion, guided by recent experimental observations. Visualization of bubble growth in model porous media was recently conducted using 2-D etched-glass micromodels.

  19. Bench-Scale Fermentation Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01T23:59:59.000Z

    This fact sheet provides information about Bench-Scale Fermentation Laboratory capabilities and applications at NREL's National Bioenergy Center.

  20. Industrial Scale Demonstration of Smart Manufacturing Achieving...

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

    Scale Demonstration of Smart Manufacturing Achieving Transformational Energy Productivity Gains Development of an Open Architecture, Widely Applicable Smart Manufacturing...

  1. Range Fuels Commercial-Scale Biorefinery

    Broader source: Energy.gov [DOE]

    The Range Fuels commercial-scale biorefinery will use a variety of feedstocks to create cellulosic ethanol, methanol, and power.

  2. Generalized z-scaling in proton-proton collisions at high energies

    E-Print Network [OSTI]

    I. Zborovsky; M. Tokarev

    2006-03-28T23:59:59.000Z

    New generalization of z-scaling in inclusive particle production is proposed. The scaling variable z is fractal measure which depends on kinematical characteristics of the underlying sub-process expressed in terms of the momentum fractions x1 and x2 of the incoming protons. In the generalized approach, the x1 and x2 are functions of the momentum fractions ya and yb of the scattered and recoil constituents carried out by the inclusive particle and recoil object, respectively. The scaling function psi(z) for charged and identified hadrons produced in proton-proton collisions is constructed. The fractal dimensions and heat capacity of the produced medium entering definition of the z are established to obtain energy, angular and multiplicity independence of the psi(z). The scheme allows unique description of data on inclusive cross sections of charged particles, pions, kaons, antiprotons and lambdas at high energies. The obtained results are of interest to use z-scaling as a tool for searching for new physics phenomena of particle production in high transverse momentum and high multiplicity region at proton-proton colliders RHIC and LHC.

  3. Nuclear Reactions & Scaling Arguments 11 October 2011

    E-Print Network [OSTI]

    Militzer, Burkhard

    Nuclear Reactions & Scaling Arguments 11 October 2011 Goals · Review nuclear reaction rates · Practice using scaling arguments Nuclear Reactions 1. Consider the simple reaction A k1 ---- B k2 ---- C = 3. #12;nuclear reactions & scaling arguments 2 3. Frequently, we approximate nuclear reaction rates

  4. Nuclear Reactions & Scaling Arguments 11 October 2011

    E-Print Network [OSTI]

    Militzer, Burkhard

    Nuclear Reactions & Scaling Arguments 11 October 2011 Goals · Review nuclear reaction rates · Practice using scaling arguments Nuclear Reactions 1. Consider the simple reaction A k1 ---- B k2 ---- C rate for something like p + p D scales like n2 p. Think in microscopic terms. #12;nuclear reactions

  5. Web Scale Taxonomy Cleansing Taesung Lee ,

    E-Print Network [OSTI]

    Hwang, Seung-won

    Web Scale Taxonomy Cleansing Taesung Lee , Zhongyuan Wang Haixun Wang Seung-won Hwang POSTECH.wang,haixunw}@microsoft.com ABSTRACT Large ontologies and taxonomies are automatically harvested from web-scale data. These taxonomies- scale taxonomies becomes a great challenge. A natural way to en- rich a taxonomy is to map the taxonomy

  6. 6, 1092910958, 2006 Regional scale CO2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 6, 10929­10958, 2006 Regional scale CO2 flux estimation using radon A. I. Hirsch Title Page Chemistry and Physics Discussions On using radon-222 and CO2 to calculate regional-scale CO2 fluxes A. I (Adam.Hirsch@noaa.gov) 10929 #12;ACPD 6, 10929­10958, 2006 Regional scale CO2 flux estimation using

  7. A parallel scaled conjugate-gradient

    E-Print Network [OSTI]

    Aykanat, Cevdet

    . The scaled conjugate- gradient method is a powerful technique for solving large sparse linear systems for form-factor computation. Key words: Gathering radiosity -- Scaled conjugate-gradient method -- Parallel, the Gauss--Jacobi (GJ) method is used in the solution phase. The scaled conjugate-gradient (SCG) method

  8. Large-Scale Renewable Energy Guide Webinar

    Broader source: Energy.gov [DOE]

    Webinar introduces the “Large Scale Renewable Energy Guide." The webinar will provide an overview of this important FEMP guide, which describes FEMP's approach to large-scale renewable energy projects and provides guidance to Federal agencies and the private sector on how to develop a common process for large-scale renewable projects.

  9. Conundrum of the Large Scale Streaming

    E-Print Network [OSTI]

    T. M. Malm

    1999-09-12T23:59:59.000Z

    The etiology of the large scale peculiar velocity (large scale streaming motion) of clusters would increasingly seem more tenuous, within the context of the gravitational instability hypothesis. Are there any alternative testable models possibly accounting for such large scale streaming of clusters?

  10. Engineering scale electrostatic enclosure demonstration

    SciTech Connect (OSTI)

    Meyer, L.C.

    1993-09-01T23:59:59.000Z

    This report presents results from an engineering scale electrostatic enclosure demonstration test. The electrostatic enclosure is part of an overall in-depth contamination control strategy for transuranic (TRU) waste recovery operations. TRU contaminants include small particles of plutonium compounds associated with defense-related waste recovery operations. Demonstration test items consisted of an outer Perma-con enclosure, an inner tent enclosure, and a ventilation system test section for testing electrostatic curtain devices. Three interchangeable test fixtures that could remove plutonium from the contaminated dust were tested in the test section. These were an electret filter, a CRT as an electrostatic field source, and an electrically charged parallel plate separator. Enclosure materials tested included polyethylene, anti-static construction fabric, and stainless steel. The soil size distribution was determined using an eight stage cascade impactor. Photographs of particles containing plutonium were obtained with a scanning electron microscope (SEM). The SEM also provided a second method of getting the size distribution. The amount of plutonium removed from the aerosol by the electrostatic devices was determined by radiochemistry from input and output aerosol samplers. The inner and outer enclosures performed adequately for plutonium handling operations and could be used for full scale operations.

  11. Goethite Bench-scale and Large-scale Preparation Tests

    SciTech Connect (OSTI)

    Josephson, Gary B.; Westsik, Joseph H.

    2011-10-23T23:59:59.000Z

    The Hanford Waste Treatment and Immobilization Plant (WTP) is the keystone for cleanup of high-level radioactive waste from our nation's nuclear defense program. The WTP will process high-level waste from the Hanford tanks and produce immobilized high-level waste glass for disposal at a national repository, low activity waste (LAW) glass, and liquid effluent from the vitrification off-gas scrubbers. The liquid effluent will be stabilized into a secondary waste form (e.g. grout-like material) and disposed on the Hanford site in the Integrated Disposal Facility (IDF) along with the low-activity waste glass. The major long-term environmental impact at Hanford results from technetium that volatilizes from the WTP melters and finally resides in the secondary waste. Laboratory studies have indicated that pertechnetate ({sup 99}TcO{sub 4}{sup -}) can be reduced and captured into a solid solution of {alpha}-FeOOH, goethite (Um 2010). Goethite is a stable mineral and can significantly retard the release of technetium to the environment from the IDF. The laboratory studies were conducted using reaction times of many days, which is typical of environmental subsurface reactions that were the genesis of this new process. This study was the first step in considering adaptation of the slow laboratory steps to a larger-scale and faster process that could be conducted either within the WTP or within the effluent treatment facility (ETF). Two levels of scale-up tests were conducted (25x and 400x). The largest scale-up produced slurries of Fe-rich precipitates that contained rhenium as a nonradioactive surrogate for {sup 99}Tc. The slurries were used in melter tests at Vitreous State Laboratory (VSL) to determine whether captured rhenium was less volatile in the vitrification process than rhenium in an unmodified feed. A critical step in the technetium immobilization process is to chemically reduce Tc(VII) in the pertechnetate (TcO{sub 4}{sup -}) to Tc(Iv)by reaction with the ferrous ion, Fe{sup 2+}-Fe{sup 2+} is oxidized to Fe{sup 3+} - in the presence of goethite seed particles. Rhenium does not mimic that process; it is not a strong enough reducing agent to duplicate the TcO{sub 4}{sup -}/Fe{sup 2+} redox reactions. Laboratory tests conducted in parallel with these scaled tests identified modifications to the liquid chemistry necessary to reduce ReO{sub 4}{sup -} and capture rhenium in the solids at levels similar to those achieved by Um (2010) for inclusion of Tc into goethite. By implementing these changes, Re was incorporated into Fe-rich solids for testing at VSL. The changes also changed the phase of iron that was in the slurry product: rather than forming goethite ({alpha}-FeOOH), the process produced magnetite (Fe{sub 3}O{sub 4}). Magnetite was considered by Pacific Northwest National Laboratory (PNNL) and VSL to probably be a better product to improve Re retention in the melter because it decomposes at a higher temperature than goethite (1538 C vs. 136 C). The feasibility tests at VSL were conducted using Re-rich magnetite. The tests did not indicate an improved retention of Re in the glass during vitrification, but they did indicate an improved melting rate (+60%), which could have significant impact on HLW processing. It is still to be shown whether the Re is a solid solution in the magnetite as {sup 99}Tc was determined to be in goethite.

  12. Organic light emitting device having multiple separate emissive layers

    DOE Patents [OSTI]

    Forrest, Stephen R. (Ann Arbor, MI)

    2012-03-27T23:59:59.000Z

    An organic light emitting device having multiple separate emissive layers is provided. Each emissive layer may define an exciton formation region, allowing exciton formation to occur across the entire emissive region. By aligning the energy levels of each emissive layer with the adjacent emissive layers, exciton formation in each layer may be improved. Devices incorporating multiple emissive layers with multiple exciton formation regions may exhibit improved performance, including internal quantum efficiencies of up to 100%.

  13. Building Scale vs. Community Scale Net-Zero Energy Performance

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Fernandez, Nicholas; Brambley, Michael R.; Reddy, T. A.

    2010-06-30T23:59:59.000Z

    Many government and industry organizations are focusing building energy-efficiency goals around producing individual net-zero buildings (nZEBs), using photovoltaic (PV) technology to provide on-site renewable energy after substantially improving the energy efficiency of the buildings themselves. Seeking net-zero energy (NZE) at the community scale instead introduces the possibility of using a wider range of renewable energy technologies, such as solar-thermal electricity generation, solar-assisted heating/cooling systems, and wind energy, economically. This paper reports results of a study comparing NZE communities to communities consisting of individual nZEBs. Five scenarios are examined: 1) base case – a community of nZEBs with roof mounted PV systems; 2) NZE communities served by wind turbines on leased land; 3) NZE communities served by wind turbines on owned land; 4) communities served by solar-thermal electric generation; and 5) communities served by photovoltaic farms. All buildings are assumed to be highly efficient, e.g., 70% more efficient than current practice. The scenarios are analyzed for two climate locations (Chicago and Phoenix), and the levelized costs of electricity for the scenarios are compared. The results show that even for the climate in the U.S. most favorable to PV (Phoenix), more cost-effective approaches are available to achieving NZE than the conventional building-level approach (rooftop PV with aggressive building efficiency improvements). The paper shows that by expanding the measurement boundary for NZE, a community can take advantage of economies of scale, achieving improved economics while reaching the same overall energy-performance objective.

  14. Scaling and Density of Lee-Yang Zeroes in the Four Dimensional Ising Model

    E-Print Network [OSTI]

    R. Kenna; C. B. Lang

    1993-11-20T23:59:59.000Z

    The scaling behaviour of the edge of the Lee--Yang zeroes in the four dimensional Ising model is analyzed. This model is believed to belong to the same universality class as the $\\phi^4_4$ model which plays a central role in relativistic quantum field theory. While in the thermodynamic limit the scaling of the Yang--Lee edge is not modified by multiplicative logarithmic corrections, such corrections are manifest in the corresponding finite--size formulae. The asymptotic form for the density of zeroes which recovers the scaling behaviour of the susceptibility and the specific heat in the thermodynamic limit is found to exhibit logarithmic corrections too. The density of zeroes for a finite--size system is examined both analytically and numerically.

  15. Lazy Checkpointing : Exploiting Temporal Locality in Failures to Mitigate Checkpointing Overheads on Extreme-Scale Systems

    SciTech Connect (OSTI)

    Tiwari, Devesh [ORNL] [ORNL; Gupta, Saurabh [ORNL] [ORNL; Vazhkudai, Sudharshan S [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Continuing increase in the computational power of supercomputers has enabled large-scale scientific applications in the areas of astrophysics, fusion, climate and combustion to run larger and longer-running simulations, facilitating deeper scientific insights. However, these long-running simulations are often interrupted by multiple system failures. Therefore, these applications rely on ``checkpointing'' as a resilience mechanism to store application state to permanent storage and recover from failures. \\\\ \\indent Unfortunately, checkpointing incurs excessive I/O overhead on supercomputers due to large size of checkpoints, resulting in a sub-optimal performance and resource utilization. In this paper, we devise novel mechanisms to show how checkpointing overhead can be mitigated significantly by exploiting the temporal characteristics of system failures. We provide new insights and detailed quantitative understanding of the checkpointing overheads and trade-offs on large-scale machines. Our prototype implementation shows the viability of our approach on extreme-scale machines.

  16. Estimation of Highway Maintenance Marginal Cost under Multiple Maintenance Activities

    E-Print Network [OSTI]

    Anani, Shadi B.; Madanat, Samer M

    2010-01-01T23:59:59.000Z

    Marginal costs for road maintenance and operation - a cost2010-01) Estimation of Highway Maintenance Marginal Costunder Multiple Maintenance Activities Shadi B. Anani and

  17. V-132: IBM Tivoli System Automation Application Manager Multiple...

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

    IBM has acknowledged multiple vulnerabilities in IBM Tivoli System Automation Application Manager PLATFORM: The vulnerabilities are reported in IBM Tivoli System Automation...

  18. Generating All Efficient Extreme Points in Multiple Objective Linear ...

    E-Print Network [OSTI]

    2007-06-21T23:59:59.000Z

    for generating all efficient extreme points and all efficient extreme rays of a multiple objective linear programming problem (V P). As an application we solve the ...

  19. Optimization Online - Efficient Direct Multiple Shooting for Nonlinear ...

    E-Print Network [OSTI]

    Christian Kirches

    2011-05-31T23:59:59.000Z

    May 31, 2011 ... Efficient Direct Multiple Shooting for Nonlinear Model Predictive Control on Long Horizons. Christian Kirches (christian.kirches ***at*** ...

  20. Energetics and Dynamics of Peptide Fragmentation from Multiple...

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

    of peptides containing the LDIFSDF motif. Citation: Laskin J.2004."Energetics and Dynamics of Peptide Fragmentation from Multiple-Collision Activation and Surface-Induced...

  1. activates multiple signaling: Topics by E-print Network

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

    Burr Settles; Mark Craven; Soumya Ray 2008-01-01 13 SIC (MUltiple SIgnal Classification) CSP (Cross-power Spectrum Phase) Computer Technologies and Information Sciences Websites...

  2. Optimization of Multiple Receivers Solar Power Tower systems

    E-Print Network [OSTI]

    Emilio Carrizosa

    2015-03-26T23:59:59.000Z

    Mar 26, 2015 ... Abstract: In this article a new procedure to optimize the design of a Multiple Receivers Solar Power Tower system is presented. The proposed ...

  3. Multiplicities of Pfaffian Intersections, and the Lojasiewicz Inequality ...

    E-Print Network [OSTI]

    1910-00-40T23:59:59.000Z

    and the exponents in the Lojasiewicz inequalities for Pfaffian functions. For the intersections defined by sparse polynomials, the multiplicities outside the.

  4. Energetics and Dynamics of Peptide Fragmentation from Multiple...

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

    Citation: Laskin J.2004."Energetics and Dynamics of Peptide Fragmentation from Multiple-Collision Activation and Surface-Induced Dissociation Studies."European Journal of Mass...

  5. activates multiple metabolic: Topics by E-print Network

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

    for nearly all of the carbohydrate catabolized. The combination of energy utilization Bennett, Albert F. 3 Multiple-instance active learning CiteSeer Summary: We present a...

  6. Aerosol cluster impact and break-up : II. Atomic and Cluster Scale Models.

    SciTech Connect (OSTI)

    Lechman, Jeremy B.; Takato, Yoichi (State University of New York at Buffalo, Buffalo, NY)

    2010-09-01T23:59:59.000Z

    Understanding the interaction of aerosol particle clusters/flocs with surfaces is an area of interest for a number of processes in chemical, pharmaceutical, and powder manufacturing as well as in steam-tube rupture in nuclear power plants. Developing predictive capabilities for these applications involves coupled phenomena on multiple length and timescales from the process macroscopic scale ({approx}1m) to the multi-cluster interaction scale (1mm-0.1m) to the single cluster scale ({approx}1000 - 10000 particles) to the particle scale (10nm-10{micro}m) interactions, and on down to the sub-particle, atomic scale interactions. The focus of this report is on the single cluster scale; although work directed toward developing better models of particle-particle interactions by considering sub-particle scale interactions and phenomena is also described. In particular, results of mesoscale (i.e., particle to single cluster scale) discrete element method (DEM) simulations for aerosol cluster impact with rigid walls are presented. The particle-particle interaction model is based on JKR adhesion theory and is implemented as an enhancement to the granular package in the LAMMPS code. The theory behind the model is outlined and preliminary results are shown. Additionally, as mentioned, results from atomistic classical molecular dynamics simulations are also described as a means of developing higher fidelity models of particle-particle interactions. Ultimately, the results from these and other studies at various scales must be collated to provide systems level models with accurate 'sub-grid' information for design, analysis and control of the underlying systems processes.

  7. A regional-scale particle-tracking method for nonstationary fractured media

    SciTech Connect (OSTI)

    Ohman, Johan; Niemi, Auli; Tsang, Chin-Fu

    2004-11-01T23:59:59.000Z

    A regional scale transport model is introduced that is applicable to non-stationary and statistically inhomogeneous fractured media, provided that hydraulic flow, but not necessarily solute transport, can be approximated by equivalent continuum properties at some block scale. Upscaled flow and transport block properties are transferred from multiple fracture network realizations to a regional model with grid elements of equal size to that found valid for continuum approximation of flow. In the large-scale model, flow is solved in a stochastic continuum framework, whereas the transport calculations employ a random walk procedure. Block-wise transit times are sampled from distributions linked to each block-conductivity based on its underlying fracture network. To account for channeled transport larger than the block scale, several alternatives in sampling algorithm are introduced and compared. The most reasonable alternative incorporates a spatial persistence length in sampling the particle transit times; this tracer transport persistence length is related to interblock channeling, and is quantified by the number N of blocks. The approach is demonstrated for a set of field data, and the obtained regional-scale particle breakthroughs are analyzed. These are fitted to the one-dimensional advective-dispersive equation to determine an effective macroscale dispersion coefficient. An interesting finding is that this macroscale dispersion coefficient is found to be a linear function of the transport persistence, N, with a slope equal to a representative mean block-scale dispersion coefficient and a constant that incorporates background dispersion arising from the regional heterogeneous conductivity field.

  8. Design Optimization of Radionuclide Nano-Scale Batteries

    SciTech Connect (OSTI)

    Schoenfeld, D.W.; Tulenko, J.S.; Wang, J.; Smith, B.

    2004-10-06T23:59:59.000Z

    Radioisotopes have been used for power sources in heart pacemakers and space applications dating back to the 50's. Two key properties of radioisotope power sources are high energy density and long half-life compared to chemical batteries. The tritium battery used in heart pacemakers exceeds 500 mW-hr, and is being evaluated by the University of Florida for feasibility as a MEMS (MicroElectroMechanical Systems) power source. Conversion of radioisotope sources into electrical power within the constraints of nano-scale dimensions requires cutting-edge technologies and novel approaches. Some advances evolving in the III-V and II-IV semiconductor families have led to a broader consideration of radioisotopes rather free of radiation damage limitations. Their properties can lead to novel battery configurations designed to convert externally located emissions from a highly radioactive environment. This paper presents results for the analytical computational assisted design and modeling of semiconductor prototype nano-scale radioisotope nuclear batteries from MCNP and EGS programs. The analysis evaluated proposed designs and was used to guide the selection of appropriate geometries, material properties, and specific activities to attain power requirements for the MEMS batteries. Plans utilizing high specific activity radioisotopes were assessed in the investigation of designs employing multiple conversion cells and graded junctions with varying band gap properties. Voltage increases sought by serial combination of VOC s are proposed to overcome some of the limitations of a low power density. The power density is directly dependent on the total active areas.

  9. Horizontally scaling dChache SRM with the Terracotta platform

    SciTech Connect (OSTI)

    Perelmutov, T.; Crawford, M.; Moibenko, A.; Oleynik, G.; /Fermilab

    2011-01-01T23:59:59.000Z

    The dCache disk caching file system has been chosen by a majority of LHC experiments Tier 1 centers for their data storage needs. It is also deployed at many Tier 2 centers. The Storage Resource Manager (SRM) is a standardized grid storage interface and a single point of remote entry into dCache, and hence is a critical component. SRM must scale to increasing transaction rates and remain resilient against changing usage patterns. The initial implementation of the SRM service in dCache suffered from an inability to support clustered deployment, and its performance was limited by the hardware of a single node. Using the Terracotta platform, we added the ability to horizontally scale the dCache SRM service to run on multiple nodes in a cluster configuration, coupled with network load balancing. This gives site administrators the ability to increase the performance and reliability of SRM service to face the ever-increasing requirements of LHC data handling. In this paper we will describe the previous limitations of the architecture SRM server and how the Terracotta platform allowed us to readily convert single node service into a highly scalable clustered application.

  10. A pilot-scale continuous-jet hydrate reactor

    SciTech Connect (OSTI)

    Szymcek, Phillip [ORNL; McCallum, Scott [Oak Ridge Associated Universities (ORAU); Taboada Serrano, Patricia L [ORNL; Tsouris, Costas [ORNL

    2008-01-01T23:59:59.000Z

    A three-phase, pilot-scale continuous-jet hydrate reactor (CJHR) has been developed for the production of gas hydrates. The reactor receives water and a hydrate-forming species to produce the solid gas hydrate. The CJHR has been tested for the production of CO{sub 2} hydrate for the purpose of ocean carbon sequestration. Formation of CO{sub 2} hydrate was investigated using various reactor/injector designs in a 72-l high-pressure vessel. Designs of the CJHR varied from single-capillary to multiple-capillary injectors that dispersed (1) liquid CO{sub 2} into water or (2) water into liquid CO{sub 2}. The novel injector is designed to improve the dispersion of one reactant into the other and, thus, eliminate mass transfer barriers that negatively affect conversion. An additional goal was an increase in production rates of two orders of magnitude. The designed injectors were tested in both distilled and saline water. Hydrate production experiments were conducted at different CO{sub 2} and water flow rates and for pressures and temperatures equivalent to intermediate ocean depths (1100-1700 m). The pilot-scale reactor with the novel injection system successfully increased hydrate production rates and efficiency.

  11. Spray-Formed Tooling with Micro-Scale Features

    SciTech Connect (OSTI)

    Kevin McHugh

    2010-06-01T23:59:59.000Z

    Molds, dies, and related tooling are used to shape many of the plastic and metal components we use every day at home and work. Traditional mold-making practices are labor and capital equipment intensive, involving multiple machining, benching and heat treatment operations. Spray forming is an alternative method to manufacture molds and dies. The general concept is to atomize and deposit droplets of a tooling alloy onto a pattern to form a thick deposit while imaging the pattern’s shape, surface texture and details. Unlike conventional machining, this approach can be used to fabricate tooling with micro-scale surface features. This paper describes a research effort to spray form molds and dies that are used to image micro-scale surface textures into polymers. The goal of the study is to replicate textures that give rise to superhydrophobic behavior by mimicking the surface structure of highly water repellent biological materials such as the lotus leaf. Spray conditions leading to high transfer fidelity of features into the surface of molded polymers will be described. Improvements in water repellency of these materials was quantified by measuring the static contact angle of water droplets on flat and textured surfaces.

  12. Knowledge Framework Implementation with Multiple Architectures - 13090

    SciTech Connect (OSTI)

    Upadhyay, H.; Lagos, L.; Quintero, W.; Shoffner, P. [Applied Research Center, Florida International University, Miami, FL 33174 (United States)] [Applied Research Center, Florida International University, Miami, FL 33174 (United States); DeGregory, J. [Office of D and D and Facility Engineering, Environmental Management, Department of Energy (United States)] [Office of D and D and Facility Engineering, Environmental Management, Department of Energy (United States)

    2013-07-01T23:59:59.000Z

    Multiple kinds of knowledge management systems are operational in public and private enterprises, large and small organizations with a variety of business models that make the design, implementation and operation of integrated knowledge systems very difficult. In recent days, there has been a sweeping advancement in the information technology area, leading to the development of sophisticated frameworks and architectures. These platforms need to be used for the development of integrated knowledge management systems which provides a common platform for sharing knowledge across the enterprise, thereby reducing the operational inefficiencies and delivering cost savings. This paper discusses the knowledge framework and architecture that can be used for the system development and its application to real life need of nuclear industry. A case study of deactivation and decommissioning (D and D) is discussed with the Knowledge Management Information Tool platform and framework. D and D work is a high priority activity across the Department of Energy (DOE) complex. Subject matter specialists (SMS) associated with DOE sites, the Energy Facility Contractors Group (EFCOG) and the D and D community have gained extensive knowledge and experience over the years in the cleanup of the legacy waste from the Manhattan Project. To prevent the D and D knowledge and expertise from being lost over time from the evolving and aging workforce, DOE and the Applied Research Center (ARC) at Florida International University (FIU) proposed to capture and maintain this valuable information in a universally available and easily usable system. (authors)

  13. Nanoparticles modified with multiple organic acids

    DOE Patents [OSTI]

    Cook, Ronald Lee (Lakewood, CO); Luebben, Silvia DeVito (Golden, CO); Myers, Andrew William (Arvada, CO); Smith, Bryan Matthew (Boulder, CO); Elliott, Brian John (Superior, CO); Kreutzer, Cory (Brighton, CO); Wilson, Carolina (Arvada, CO); Meiser, Manfred (Aurora, CO)

    2007-07-17T23:59:59.000Z

    Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In particular, the nanoparticle surface is modified by reactions with two or more different carboxylic acids, at least one of which is an organic carboxylic acid. The product is a surface modified boehmite nanoparticle that has an inorganic aluminum oxyhydroxide core, or part aluminum oxyhydroxide core and a surface-bonded organic shell. Organic carboxylic acids of this invention contain at least one carboxylic acid group and one carbon-hydrogen bond. One embodiment of this invention provides boehmite nanoparticles that have been surface modified with two or more acids one of which additional carries at least one reactive functional group. Another embodiment of this invention provides boehmite nanoparticles that have been surface modified with multiple acids one of which has molecular weight or average molecular weight greater than or equal to 500 Daltons. Yet, another embodiment of this invention provides boehmite nanoparticles that are surface modified with two or more acids one of which is hydrophobic in nature and has solubility in water of less than 15 by weight. The products of the methods of this invention have specific useful properties when used in mixture with liquids, as filler in solids, or as stand-alone entities.

  14. Multiple capillary biochemical analyzer with barrier member

    DOE Patents [OSTI]

    Dovichi, N.J.; Zhang, J.Z.

    1996-10-22T23:59:59.000Z

    A multiple capillary biochemical analyzer is disclosed for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal-to-noise ratio. 12 figs.

  15. Multiple capillary biochemical analyzer with barrier member

    DOE Patents [OSTI]

    Dovichi, Norman J. (Edmonton, CA); Zhang, Jian Z. (Edmonton, CA)

    1996-01-01T23:59:59.000Z

    A multiple capillary biochemical analyzer for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal to noise ratio.

  16. Multiple Membranes in M-theory

    E-Print Network [OSTI]

    Jonathan Bagger; Neil Lambert; Sunil Mukhi; Constantinos Papageorgakis

    2012-07-14T23:59:59.000Z

    We review developments in the theory of multiple, parallel membranes in M-theory. After discussing the inherent difficulties pertaining to a maximally supersymmetric lagrangian formulation with the appropriate field content and symmetries, we discuss how introducing the concept of 3-algebras allows for such a description. Different choices of 3-algebras lead to distinct classes of 2+1 dimensional theories with varying degrees of supersymmetry. We then describe how these are equivalent to a type of conventional superconformal Chern-Simons gauge theories at level k, coupled to bifundamental matter. Analysing the physical properties of these theories leads to the identification of a certain subclass of models with configurations of M2-branes in Z_k orbifolds of M-theory. In addition these models give rise to a whole new sector of the gauge/gravity duality in the form of an AdS_4/CFT_3 correspondence. We also discuss mass deformations, higher derivative corrections as well as the possibility of extracting information about M5-brane physics.

  17. GIS-based multiple scale study of Rio Grande wild turkey habitat in the Edwards Plateau of Texas

    E-Print Network [OSTI]

    Perotto Baldiviezo, Humberto Lauro

    2006-10-30T23:59:59.000Z

    characteristics of stable and declining study sites in the Edwards Plateau, and the development and evaluation of a GIS-based habitat-suitability model for female RGWTs during the breeding season that will allow the assessment of the spatial distribution...

  18. INNOVATIVE EXPERIMENTAL SETUP FOR THE PARALLEL OPERATION OF MULTIPLE BENCH SCALE BIOTRICKLING FILTERS FOR WASTE AIR TREATMENT

    E-Print Network [OSTI]

    of synthetic material over which a liquid phase is circulated. As the packing does not contain an indigenous-state approach). However, it has been shown that microbial populations in vapor phase bioreactors may change even.7) at an empty bed residence time of 45 s and a toluene inlet gas phase concentration of 1.6 g m-3 . At gas

  19. Computation of the normal forms for general M-DOF systems using multiple time scales. Part I: autonomous systems

    E-Print Network [OSTI]

    Yu, Pei

    computing normal forms up to any high order. The equivalence between the perturbation technique and Poincare in a companion paper. Ã? 2004 Elsevier B.V. All rights reserved. Keywords: Non-linear vibration; Normal form, electrical circuits, control systems, population problems, economics, financial systems, stock market

  20. GIS-based multiple scale study of Rio Grande wild turkey habitat in the Edwards Plateau of Texas 

    E-Print Network [OSTI]

    Perotto Baldiviezo, Humberto Lauro

    2006-10-30T23:59:59.000Z

    Rio Grande wild turkey (RGWT) abundance in portions of the Edwards Plateau has declined steadily since the late 1970s as compared to other areas of the Edwards Plateau where populations have exhibited no trend. The reasons ...

  1. Coordinated learning of grid cell and place cell spatial and temporal properties: Multiple scales, attention, and oscillations

    E-Print Network [OSTI]

    Spence, Harlan Ernest

    self-organizing map mechanisms can learn grid cell and place cell receptive fields; and the learning mechanisms may stabilize map learning, simulates how hippocampal inactivation may disrupt grid cells of grid cell models in light of recent data. Key words: grid cells; place cells; self-organizing map

  2. Infrared renormalization in non-relativistic QED and scaling criticality

    E-Print Network [OSTI]

    Thomas Chen

    2007-02-28T23:59:59.000Z

    We consider a spin-$\\frac12$ electron in a translation-invariant model of non-relativistic Quantum Electrodynamics (QED). Let $H(\\vp,\\sig)$ denote the fiber Hamiltonian corresponding to the conserved total momentum $\\vp\\in\\R^3$ of the Pauli electron and the photon field, regularized by a fixed ultraviolet cutoff in the interaction term, and an infrared regularization parametrized by $00$, and all values of the finestructure constant $\\gs<\\gs_0$, with $\\gs_0\\ll1$ sufficiently small and {\\em independent} of $\\sig$, we prove the existence of a ground state eigenvalue of multiplicity two at the bottom of the essential spectrum. Moreover, we prove that the renormalized electron mass satisfies $1scaling-critical renormalization group problem of endpoint type, in which the interaction is strictly marginal (of scale-independent size). The main achievement of this paper is the development of a method that provides rigorous control of the renormalization of a {\\em strictly marginal} quantum field theory characterized by a {\\em non-trivial scaling limit}.

  3. Properties of Iterated Multiple Belief Revision Dongmo Zhang

    E-Print Network [OSTI]

    Zhang, Dongmo

    in the community of belief revision[2][5][9][10][13][17]. The major concern in the research is the reducibilityProperties of Iterated Multiple Belief Revision Dongmo Zhang School of Computing and Information investigate the properties of iterated multiple belief revision. We examine several typical assumptions

  4. Multiple Blind Watermarking in the DRM-Context

    E-Print Network [OSTI]

    Uhl, Andreas

    Multiple Blind Watermarking in the DRM-Context #12;#12;Multiple Blind Watermarking in the DRM have helped me throughout my master thesis in one or the other way. I want to thank my supervisor Andreas Uhl who guided me through my master thesis and supported me much more than a supervisor has to. I

  5. Linearly Exchangable Permits for the Efficient Control of Multiple Pollutants

    E-Print Network [OSTI]

    California at Berkeley. University of

    PWP-019 Linearly Exchangable Permits for the Efficient Control of Multiple Pollutants James B;Linear Exchangeable Permits for the Ecient Control of Multiple Pollutants James B. Bushnell University of pollutants. Often a new polluter is required to purchase an "o-set" from an existing polluter prepared

  6. Independent Control of Multiple Magnetic Microrobots in Three Dimensions

    E-Print Network [OSTI]

    Sitti, Metin

    Independent Control of Multiple Magnetic Microrobots in Three Dimensions Eric Diller, Joshua method to independently control multiple sub-mm microrobots in three dimen- sions (3D) using magnetic of geometrically or magnetically distinct microrobots which assume different magnetization directions in a rotating

  7. Iterative gradient descent approach to multiple regression with fuzzy data

    E-Print Network [OSTI]

    Bargiela, Andrzej

    to multiple regression and lay foundation for a further generalisation to multiple non-linear regression dictates adoption of a more general viewpoint, regression variables are given as non-numerical entities of the parameters of the regression model have been derived only for the case of a simple linear regression, i

  8. CURVES OF GENUS 2 WITH p 2 MULTIPLICATION

    E-Print Network [OSTI]

    thesis, which looks at curves of genus 2 whose jacobians have p 2 multiplication, with the generalisedCURVES OF GENUS 2 WITH p 2 MULTIPLICATION PETER R. BENDING Abstract We give a universal family, and let f be a newform on \\Gamma 1 (N) whose field of Fourier coefficients is F (F is a totally real field

  9. Transdichotomous algorithms without multiplication some upper and lower bounds

    E-Print Network [OSTI]

    Brodnik, Andrej "Andy"

    Trans­dichotomous algorithms without multiplication ­ some upper and lower bounds Andrej Brodnik 1 that on a RAM with addition, subtraction, bitwise Boolean operations and shifts, but no multiplication; 1g w of w­bit bit strings (or numbers between 0 and 2 w \\Gamma 1). An increasingly popular

  10. Sustaining multiple ecosystem functions in grassland communities requires higher biodiversity

    E-Print Network [OSTI]

    Zavaleta, Erika

    Sustaining multiple ecosystem functions in grassland communities requires higher biodiversity Erika (sent for review July 27, 2009) Society places value on the multiple functions of ecosystems from ecosystems to provide threshold levels of up to eight ecosystem functions simultaneously. Across years

  11. Multiple ERK substrates execute single biological processes in Caenorhabditis elegans

    E-Print Network [OSTI]

    Multiple ERK substrates execute single biological processes in Caenorhabditis elegans germ, 2008) RAS-extracellular signal regulated kinase (ERK) signaling governs multiple aspects of cell fate. Understanding how perturbations to the ERK signaling pathway lead to developmental disorders and cancer hinges

  12. MultipleChannel Multicast Scheduling for Scalable Bulkdata Transport \\Lambda

    E-Print Network [OSTI]

    Donahoo, Michael J.

    is the scheduling of data transmission across the multiple channels to accomodate asynchronous requests from clients) commensurate with its own rate capabilities. Variability in receiver rates can be accomodated, and the sender to accomodate asynchronous requests from clients. In this paper, we present and analyze a new multiple

  13. Objectives for Multiple-Species Conservation EMILY NICHOLSON

    E-Print Network [OSTI]

    Queensland, University of

    of extinction for multiple species. Although the assessment of extinction risk for single species is common, few researchers have formu- lated an objective function that combines the extinction risks of multiple species. We functions based on extinction risk across many species and illustrated the differences between

  14. SUPPORTING END-TO-END SECURITY ACROSS PROXIES WITH MULTIPLE-

    E-Print Network [OSTI]

    SUPPORTING END-TO-END SECURITY ACROSS PROXIES WITH MULTIPLE- CHANNEL SSL Yong Song, Victor C Columbia, 2356 Main Mall, Vancouver, BC V6T 1Z4, Canada Abstract: Secure Socket Layer (SSL) has functional used by clients to communicate with servers. This paper introduces Multiple-Channel SSL (MC-SSL

  15. Iterative Water-filling for Gaussian Vector Multiple Access Channels

    E-Print Network [OSTI]

    Li, Tiffany Jing

    Iterative Water-filling for Gaussian Vector Multiple Access Channels W. Yu, W. Rhee, S. Boyd, and J. Cioffi Zhenlei Shen Lehigh University March 29, 2005 Zhenlei Shen (Lehigh) Iterative Water-filling for Gaussian Vector Multiple Access ChannelsMarch 29, 2005 1 / 13 #12;1 Quick Review 2 Iterative Water

  16. The Energy Harvesting Multiple Access Channel with Energy Storage Losses

    E-Print Network [OSTI]

    Yener, Aylin

    The Energy Harvesting Multiple Access Channel with Energy Storage Losses Kaya Tutuncuoglu and Aylin considers a Gaussian multiple access channel with two energy harvesting transmitters with lossy energy storage. The power allocation policy maximizing the average weighted sum rate given the energy harvesting

  17. Cancer Treatment Using Multiple Chemotheraputic Agents Subject to Drug Resistance

    E-Print Network [OSTI]

    Hanson, Floyd B.

    Cancer Treatment Using Multiple Chemotheraputic Agents Subject to Drug Resistance J. J. Westman-7045 USA Abstract A compartment model for the evolution of cancer subject to multiple chemotherapeutic agents is presented. The formulation accounts for the heterogeneous nature of cancer and drug resistance

  18. Bioinformatics Workshop #1 A Brief Introduction to Multiple Sequence

    E-Print Network [OSTI]

    Ronquist, Fredrik

    Bioinformatics Workshop #1 A Brief Introduction to Multiple Sequence Analysis through GCG's SeqLab The SeqLab Graphical User Interface (GUI) is a `front-end' to the Wisconsin Sequence Analysis Package GCG programs and is a great way to develop, refine, and analyze multiple sequence alignments. So what

  19. Techniques for Low Jitter Clock Multiplication Belal Moheedin Helal

    E-Print Network [OSTI]

    Perrott, Michael

    Techniques for Low Jitter Clock Multiplication by Belal Moheedin Helal Bachelor of Science and Computer Science Updated On-Line Version #12;2 #12;Techniques for Low Jitter Clock Multiplication by Belal-Locked Loops (MDLL), offer significantly reduced random jitter compared to typical Phase-Locked Loops (PLL

  20. Renewable Energy: Utility-Scale Policies and Programs | Department...

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

    Policies & Programs Renewable Energy: Utility-Scale Policies and Programs Renewable Energy: Utility-Scale Policies and Programs Utility-scale renewable energy projects are...

  1. DLFM library tools for large scale dynamic applications.

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

    DLFM library tools for large scale dynamic applications DLFM library tools for large scale dynamic applications Large scale Python and other dynamic applications may spend huge...

  2. Cooperative target convergence using multiple agents

    SciTech Connect (OSTI)

    Kwok, K.S.; Driessen, B.J.

    1997-10-01T23:59:59.000Z

    This work considers the problem of causing multiple (100`s) autonomous mobile robots to converge to a target and provides a follow-the-leader approach to the problem. Each robot has only a limited-range sensor for sending the target and also larger but also limited-range robot-to-robot communication capability. Because of the small amount of information available to the robots, a practical approach to improve convergence to the target is to have a robot follow the robot with the best quality of information. Specifically, each robot emits a signal that informs in-range robots what its status is. A robot has a status value of 0 if it is itself in range of the target. A robot has a status of 1 if it is not in range of the target but is in communication range of a robot that is in range of the target. A robot has a status of 2 if it is not in range of the target but is within range of another robot that has status 1, and so on. Of all the mobile robots that any given robot is in range of, it follows the one with the best status. The emergent behavior is the ant-like trails of robots following each other toward the target. If the robot is not in range of another robot that is either in range of the target or following another robot, the robot will assign-1 to its quality-of-information, and will execute an exhaustive search. The exhaustive search will continue until it encounters either the target or another robot with a nonnegative quality-of-information. The quality of information approach was extended to the case where each robot only has two-bit signals informing it of distance to in-range robots.

  3. Control of Multiple Robotic Sentry Vehicles

    SciTech Connect (OSTI)

    Feddema, J.; Klarer, P.; Lewis, C.

    1999-04-01T23:59:59.000Z

    As part of a project for the Defense Advanced Research Projects Agency, Sandia National Laboratories is developing and testing the feasibility of using of a cooperative team of robotic sentry vehicles to guard a perimeter and to perform surround and diversion tasks. This paper describes on-going activities in the development of these robotic sentry vehicles. To date, we have developed a robotic perimeter detection system which consists of eight ''Roving All Terrain Lunar Explorer Rover'' (RATLER{trademark}) vehicles, a laptop-based base-station, and several Miniature Intrusion Detection Sensors (MIDS). A radio frequency receiver on each of the RATLER vehicles alerts the sentry vehicles of alarms from the hidden MIDS. When an alarm is received, each vehicle decides whether it should investigate the alarm based on the proximity of itself and the other vehicles to the alarm. As one vehicle attends an alarm, the other vehicles adjust their position around the perimeter to better prepare for another alarm. We have also demonstrated the ability to drive multiple vehicles in formation via tele-operation or by waypoint GPS navigation. This is currently being extended to include mission planning capabilities. At the base-station, the operator can draw on an aerial map the goal regions to be surrounded and the repulsive regions to be avoided. A potential field path planner automatically generates a path from the vehicles' current position to the goal regions while avoiding the repulsive regions and the other vehicles. This path is previewed to the operator before the regions are downloaded to the vehicles. The same potential field path planner resides on the vehicle, except additional repulsive forces from on-board proximity sensors guide the vehicle away from unplanned obstacles.

  4. The Multiple Zeta Value Data Mine

    E-Print Network [OSTI]

    J. Blümlein; D. J. Broadhurst; J. A. M. Vermaseren

    2009-11-14T23:59:59.000Z

    We provide a data mine of proven results for multiple zeta values (MZVs) of the form $\\zeta(s_1,s_2,...,s_k)=\\sum_{n_1>n_2>...>n_k>0}^\\infty \\{1/(n_1^{s_1} >... n_k^{s_k})\\}$ with weight $w=\\sum_{i=1}^k s_i$ and depth $k$ and for Euler sums of the form $\\sum_{n_1>n_2>...>n_k>0}^\\infty t\\{(\\epsilon_1^{n_1} >...\\epsilon_1 ^{n_k})/ (n_1^{s_1} ... n_k^{s_k}) \\}$ with signs $\\epsilon_i=\\pm1$. Notably, we achieve explicit proven reductions of all MZVs with weights $w\\le22$, and all Euler sums with weights $w\\le12$, to bases whose dimensions, bigraded by weight and depth, have sizes in precise agreement with the Broadhurst--Kreimer and Broadhurst conjectures. Moreover, we lend further support to these conjectures by studying even greater weights ($w\\le30$), using modular arithmetic. To obtain these results we derive a new type of relation for Euler sums, the Generalized Doubling Relations. We elucidate the "pushdown" mechanism, whereby the ornate enumeration of primitive MZVs, by weight and depth, is reconciled with the far simpler enumeration of primitive Euler sums. There is some evidence that this pushdown mechanism finds its origin in doubling relations. We hope that our data mine, obtained by exploiting the unique power of the computer algebra language {\\sc form}, will enable the study of many more such consequences of the double-shuffle algebra of MZVs, and their Euler cousins, which are already the subject of keen interest, to practitioners of quantum field theory, and to mathematicians alike.

  5. Multiple anatomy optimization of accumulated dose

    SciTech Connect (OSTI)

    Watkins, W. Tyler, E-mail: watkinswt@virginia.edu; Siebers, Jeffrey V. [Department of Radiation Oncology, University of Virginia, Charlottesville, Virginia 22908 and Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia 23298 (United States); Moore, Joseph A. [Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland 21231 and Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia 23298 (United States); Gordon, James [Henry Ford Health System, Detroit, Michigan 48202 and Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia 23298 (United States); Hugo, Geoffrey D. [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia 23298 (United States)

    2014-11-01T23:59:59.000Z

    Purpose: To investigate the potential advantages of multiple anatomy optimization (MAO) for lung cancer radiation therapy compared to the internal target volume (ITV) approach. Methods: MAO aims to optimize a single fluence to be delivered under free-breathing conditions such that the accumulated dose meets the plan objectives, where accumulated dose is defined as the sum of deformably mapped doses computed on each phase of a single four dimensional computed tomography (4DCT) dataset. Phantom and patient simulation studies were carried out to investigate potential advantages of MAO compared to ITV planning. Through simulated delivery of the ITV- and MAO-plans, target dose variations were also investigated. Results: By optimizing the accumulated dose, MAO shows the potential to ensure dose to the moving target meets plan objectives while simultaneously reducing dose to organs at risk (OARs) compared with ITV planning. While consistently superior to the ITV approach, MAO resulted in equivalent OAR dosimetry at planning objective dose levels to within 2% volume in 14/30 plans and to within 3% volume in 19/30 plans for each lung V20, esophagus V25, and heart V30. Despite large variations in per-fraction respiratory phase weights in simulated deliveries at high dose rates (e.g., treating 4/10 phases during single fraction beams) the cumulative clinical target volume (CTV) dose after 30 fractions and per-fraction dose were constant independent of planning technique. In one case considered, however, per-phase CTV dose varied from 74% to 117% of prescription implying the level of ITV-dose heterogeneity may not be appropriate with conventional, free-breathing delivery. Conclusions: MAO incorporates 4DCT information in an optimized dose distribution and can achieve a superior plan in terms of accumulated dose to the moving target and OAR sparing compared to ITV-plans. An appropriate level of dose heterogeneity in MAO plans must be further investigated.

  6. Scaling Rules for Pre-Injector Design

    SciTech Connect (OSTI)

    Tom Schwarz; Dan Amidei

    2003-07-13T23:59:59.000Z

    Proposed designs of the prebunching system of the NLC and TESLA are based on the assumption that scaling the SLC design to NLC/TESLA requirements should provide the desired performance. A simple equation is developed to suggest a scaling rule in terms of bunch charge and duration. Detailed simulations of prebunching systems scaled from a single design have been run to investigate these issues.

  7. Halanay type inequalities on time scales

    E-Print Network [OSTI]

    Ad\\ivar, Murat

    2011-01-01T23:59:59.000Z

    This paper aims to introduce Halanay type inequalities on time scales. By means of these inequalities we derive new global stability conditions for nonlinear dynamic equations on time scales. Giving several examples we show that beside generalization and extension to q-difference case, our results also provide improvements for the existing theory regarding differential and difference inequalites, which are the most important particular cases of dynamic inequalities on time scales.

  8. How to calibrate the jet energy scale?

    SciTech Connect (OSTI)

    Hatakeyama, K.; /Rockefeller U.

    2006-01-01T23:59:59.000Z

    Top quarks dominantly decay into b-quark jets and W bosons, and the W bosons often decay into jets, thus the precise determination of the jet energy scale is crucial in measurements of many top quark properties. I present the strategies used by the CDF and D0 collaborations to determine the jet energy scale. The various cross checks performed to verify the determined jet energy scale and evaluate its systematic uncertainty are also discussed.

  9. A Multiple-Channel Sub-Band Transient Detection System

    SciTech Connect (OSTI)

    David A. Smith

    1998-11-01T23:59:59.000Z

    We have developed a unique multiple-channel sub-band transient detection system to record transient electromagnetic signals in carrier-dominated radio environments; the system has been used to make unique observations of weak, transient HF signals. The detection system has made these observations possible through improved sensitivity compared to conventional broadband transient detection systems; the sensitivity improvement is estimated to be at least 20 dB. The increase in sensitivity has been achieved through subdivision of the band of interest (an 18 MHz tunable bandwidth) into eight sub-band independent detection channels, each with a 400 kHz bandwidth and its own criteria. The system generates a system trigger signal when a predetermined number of channels (typically five) trigger within a predetermined window of time (typically 100 ~s). Events are recorded with a broadband data acquisition system sampling at 50 or 100 Msample/s, so despite the fact that the detection system operates on portions of the signal confined to narrow bands, data acquisition is broadband. Between May and September of 1994, the system was used to detect and record over six thousand transient events in the frequency band from 3 to 30 MHz. Approximately 500 of the events have been characterized as paired bursts of radio noise with individual durations of 2 to 10 ps and separations between the bursts of 5 to 160 ps. The paired transients are typically 5 to 40 dB brighter than the background electromagnetic spectrum between carrier signals. We have termed these events SubIonospheric Pulse Pairs (SIPPS) and presently have no explanation as to their source. Our observations of SIPPS resemble observations of TransIonospheric Pulse Pairs (TIPPs) recorded by the Blackboard instrument on the ALEXIS satellite; the source of TIPP events is also unknown. Most of the recorded SIPP events do not exhibit frequency dispersion, implying propagation along a line-of-sight (groundwave) path; but seven of the pairs exhibit dispersion characteristic of skywave propagation via refraction from the ionosphere. The maximum line-of-sight observation range for radio propagation extends as far as 300 km for a source at an altitude of 5 km, and 520 km for a source at 15 km. Refraction from the ionosphere, however, may allow HF radiation to propagate around the globe. Information about the times and locations of sources, in conjunction with regional, weather maps and computer models of ionospheric propagation, suggest that some SIPP events originate in the vicinity of large-scale thunderstorm complexes.

  10. Scaling the practical education experience Joel Sommers

    E-Print Network [OSTI]

    Haddadi, Hamed

    Scaling the practical education experience Joel Sommers Colgate University jsommers outline a successful This work was done in part while Joel Sommers was visiting the University

  11. Small-Scale Renewable Energy Incentive Program

    Broader source: Energy.gov [DOE]

    Vermont's Small Scale Renewable Energy Incentive Program (SSREIP), initiated in June 2003, provides funding for new solar water heating, solar electric (photovoltaic), modern wood pellet heating,...

  12. Extreme Scale Computing, Co-design

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

    at Extreme Scale (ACES) partnership to design and develop the supercomputer Cielo (Spanish for "sky"), which was built by Cray Inc. Cielo can perform more than one quadrillion...

  13. Extreme Scale Computing, Co-Design

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

    "Analyzing the evolution of large scale structures in the universe with velocity based methods," IEEE Pacific Visualization Symposium, 49-56 (2012). Christopher M. Brislawn,...

  14. Commercial-Scale Renewable-Energy Grants

    Broader source: Energy.gov [DOE]

    The Rhode Island Commerce Corporation (Commerce RI) seeks to fund commercial scale renewable energy projects to generate electricity for onsite consumption. Commerce RI provides incentives for...

  15. Sandia National Laboratories: utility-scale power

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

    utility-scale power Sandia Has Signed a Memorandum of Understanding with Case Western Reserve University On January 28, 2014, in Computational Modeling & Simulation, Energy, Energy...

  16. Double multiple-relaxation-time lattice Boltzmann model for solid-liquid phase change with natural convection in porous media

    E-Print Network [OSTI]

    Liu, Qing

    2015-01-01T23:59:59.000Z

    In this paper, a double multiple-relaxation-time lattice Boltzmann model is developed for simulating transient solid-liquid phase change problems in porous media at the representative elementary volume scale. The model uses two different multiple-relaxation-time lattice Boltzmann equations, one for the flow field and the other for the temperature field with nonlinear latent heat source term. The model is based on the generalized non-Darcy formulation, and the solid-liquid phase change interface is traced through the liquid fraction which is determined by the enthalpy method. The model is validated by numerical simulations of conduction melting in a semi-infinite space, solidification in a semi-infinite corner, and convection melting in a square cavity filled with porous media. The numerical results demonstrate the efficiency and accuracy of the present model for simulating transient solid-liquid phase change problems in porous media.

  17. Multiple pass and multiple layer friction stir welding and material enhancement processes

    DOE Patents [OSTI]

    Feng, Zhili (Knoxville, TN) [Knoxville, TN; David, Stan A. (Knoxville, TN) [Knoxville, TN; Frederick, David Alan (Harriman, TN) [Harriman, TN

    2010-07-27T23:59:59.000Z

    Processes for friction stir welding, typically for comparatively thick plate materials using multiple passes and multiple layers of a friction stir welding tool. In some embodiments a first portion of a fabrication preform and a second portion of the fabrication preform are placed adjacent to each other to form a joint, and there may be a groove adjacent the joint. The joint is welded and then, where a groove exists, a filler may be disposed in the groove, and the seams between the filler and the first and second portions of the fabrication preform may be friction stir welded. In some embodiments two portions of a fabrication preform are abutted to form a joint, where the joint may, for example, be a lap joint, a bevel joint or a butt joint. In some embodiments a plurality of passes of a friction stir welding tool may be used, with some passes welding from one side of a fabrication preform and other passes welding from the other side of the fabrication preform.

  18. Scale and the isotopic record of C4 plants in pedogenic carbonate: from the biome to the rhizospere.

    SciTech Connect (OSTI)

    Monger, Dr. H Curtis [New Mexico State University, Las Cruces; Cole, David R [ORNL; Buck, Dr. Brenda [University of Nevada, Las Vegas; Gallegos, Robert [Sant fe Water Division

    2009-01-01T23:59:59.000Z

    The 13C/12C ratio in pedogenic carbonate (i.e., CaCO3 formed in soil) is a significant tool for investigating C4 biomes of the past. However, the paleoecological meaning of d13C values in pedogenic carbonate can change with the scale at which one considers the data. We describe studies of modern soils, fossil soils, and vegetation change in the Chihuahuan Desert of North America and elsewhere that reveal four scales important for paleoecologic interpretations. (1) At the broadest scale, the biome scale (hundreds to millions of km2), an isotopic record interpreted as C3 vegetation replacing C4 grasslands may indicate invading C3 woody shrubs instead of expanding C3 forests (a common interpretation). (2) At the landscape scale (several tens of m2 to hundreds of km2), the accuracy of scaling up paleoclimatic interpretations to a regional level is affected by the landform containing the isotopic record. (3) At the soil-profile scale (cm2 to m2), soil profiles with multiple generations of carbonate mixed together have a lower-resolution paleoecologic record than soil profiles repeatedly buried. (4) At the rhizosphere scale (lm2 to cm2), carbonate formed on roots lack the 14 17 enrichment observed at broader scales, revealing different fractionation processes at different scales. A multi-scale approach in dealing with d13C in pedogenic carbonate will increase the accuracy of paleoecologic interpretations and understanding of soil geomorphic climatic interactions that affect boundaries between C4 and C3 vegetation.

  19. Scale and the isotopic record of C4 plants in pedogenic carbonate: from the biome to the rhizosphere

    SciTech Connect (OSTI)

    Monger, Dr. H Curtis [New Mexico State University, Las Cruces; Cole, David [Ohio State University; Buck, Dr. Brenda [University of Nevada, Las Vegas; Gallegos, Robert [Sant fe Water Division

    2009-01-01T23:59:59.000Z

    The 13C/12C ratio in pedogenic carbonate (i.e., CaCO3 formed in soil) is a significant tool for investigating C4 biomes of the past. However, the paleoecological meaning of d13C values in pedogenic carbonate can change with the scale at which one considers the data. We describe studies of modern soils, fossil soils, and vegetation change in the Chihuahuan Desert of North America and elsewhere that reveal four scales important for paleoecologic interpretations. (1) At the broadest scale, the biome scale (hundreds to millions of km2), an isotopic record interpreted as C3 vegetation replacing C4 grasslands may indicate invading C3 woody shrubs instead of expanding C3 forests (a common interpretation). (2) At the landscape scale (several tens of m2 to hundreds of km2), the accuracy of scaling up paleoclimatic interpretations to a regional level is affected by the landform containing the isotopic record. (3) At the soil-profile scale (cm2 to m2), soil profiles with multiple generations of carbonate mixed together have a lower-resolution paleoecologic record than soil profiles repeatedly buried. (4) At the rhizosphere scale (lm2 to cm2), carbonate formed on roots lack the 14 17 enrichment observed at broader scales, revealing different fractionation processes at different scales. A multi-scale approach in dealing with d13C in pedogenic carbonate will increase the accuracy of paleoecologic interpretations and understanding of soil geomorphic climatic interactions that affect boundaries between C4 and C3 vegetation.

  20. A Metascalable Computing Framework for Large Spatiotemporal-Scale Atomistic Simulations

    SciTech Connect (OSTI)

    Nomura, K; Seymour, R; Wang, W; Kalia, R; Nakano, A; Vashishta, P; Shimojo, F; Yang, L H

    2009-02-17T23:59:59.000Z

    A metascalable (or 'design once, scale on new architectures') parallel computing framework has been developed for large spatiotemporal-scale atomistic simulations of materials based on spatiotemporal data locality principles, which is expected to scale on emerging multipetaflops architectures. The framework consists of: (1) an embedded divide-and-conquer (EDC) algorithmic framework based on spatial locality to design linear-scaling algorithms for high complexity problems; (2) a space-time-ensemble parallel (STEP) approach based on temporal locality to predict long-time dynamics, while introducing multiple parallelization axes; and (3) a tunable hierarchical cellular decomposition (HCD) parallelization framework to map these O(N) algorithms onto a multicore cluster based on hybrid implementation combining message passing and critical section-free multithreading. The EDC-STEP-HCD framework exposes maximal concurrency and data locality, thereby achieving: (1) inter-node parallel efficiency well over 0.95 for 218 billion-atom molecular-dynamics and 1.68 trillion electronic-degrees-of-freedom quantum-mechanical simulations on 212,992 IBM BlueGene/L processors (superscalability); (2) high intra-node, multithreading parallel efficiency (nanoscalability); and (3) nearly perfect time/ensemble parallel efficiency (eon-scalability). The spatiotemporal scale covered by MD simulation on a sustained petaflops computer per day (i.e. petaflops {center_dot} day of computing) is estimated as NT = 2.14 (e.g. N = 2.14 million atoms for T = 1 microseconds).

  1. Valid flow combinations for stable sheath in a magnetized multiple ion species plasma

    SciTech Connect (OSTI)

    Sharma, Devendra; Kaw, Predhiman K. [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)

    2012-11-15T23:59:59.000Z

    Theoretical study is done of the entry criterion for the plasma flow into the electrostatic boundary layer, or sheath, forming in a magnetized multiple ion species plasma. Finding valid entry velocity combinations in a magnetized set up requires a magnetized equivalent of the generalized Bohm criterion. A magnetized generalized entry criterion is obtained with the scale length distribution in a region of validity for the stable solutions. The analysis finds that the valid entry flow velocity combinations with distinct values of individual ion species can correspond to a unique system phase velocity. Magnetization effects govern the region of validity whose boundaries collapse to the unmagnetized sheath criterion in the limit of normal incidence, independent of the strength of the magnetic field. Considerably smaller entry velocities, in comparison to the unmagnetized system sound velocity, are recovered for the species in appropriate regime of magnetization in the cases of oblique incidences.

  2. Multiple-relaxation-time lattice Boltzmann modeling of incompressible flows in porous media

    E-Print Network [OSTI]

    Qing Liu; Ya-Ling He; Chao He

    2014-09-20T23:59:59.000Z

    In this paper, a two-dimensional eight-velocity (D2Q8) multiple-relaxation-time (MRT) lattice Boltzmann (LB) model is proposed for incompressible porous flows at the representative elementary volume scale based on the Brinkman-Forchheimer-extended Darcy formulation. In the model, the porosity is included into the pressure-based equilibrium moments, and the linear and nonlinear drag forces of the porous media are incorporated into the model by adding a forcing term to the MRT-LB equation in the moment space. Through the Chapman-Enskog analysis, the generalized Navier-Stokes equations can be recovered exactly without artificial compressible errors. Numerical simulations of several typical two-dimensional porous flows are carried out to validate the present MRT-LB model. The numerical results of the present MRT-LB model are in good agreement with the analytical solutions and/or other numerical solutions reported in the literature.

  3. Numerical Results on Low Mass Star and Brown Dwarf Multiplicity

    E-Print Network [OSTI]

    Eduardo Delgado-Donate; Cathie Clarke

    2004-12-17T23:59:59.000Z

    We have undertaken a series of hydrodynamic + N-body simulations in order to explore the properties of young stars. Our results suggest that the IMF may be sensitive to environment in its substellar region, with more brown dwarfs being formed where clusters are denser or more compact. We find that multiple stars are a natural outcome of collapsing turbulent flows, with a high incidence of N > 2 multiples. We find a positive correlation of multiplicity with primary mass but a companion frequency that decreases with age. Binary brown dwarfs are rarely formed, in conflict with observations. Brown dwarfs as companions are predominantly found orbiting binaries or triples at large separations.

  4. Stator for a rotating electrical machine having multiple control windings

    DOE Patents [OSTI]

    Shah, Manoj R. (Latham, NY); Lewandowski, Chad R. (Amsterdam, NY)

    2001-07-17T23:59:59.000Z

    A rotating electric machine is provided which includes multiple independent control windings for compensating for rotor imbalances and for levitating/centering the rotor. The multiple independent control windings are placed at different axial locations along the rotor to oppose forces created by imbalances at different axial locations along the rotor. The multiple control windings can also be used to levitate/center the rotor with a relatively small magnetic field per unit area since the rotor and/or the main power winding provides the bias field.

  5. High Multiplicity Searches at the LHC Using Jet Masses

    SciTech Connect (OSTI)

    Hook, Anson; /SLAC /Stanford U., Appl. Phys. Dept.; Izaguirre, Eder; /SLAC /Stanford U., Phys. Dept.; Lisanti, Mariangela; /Princeton U.; Wacker, Jay G.; /SLAC /Stanford U., ITP

    2012-04-24T23:59:59.000Z

    This article introduces a new class of searches for physics beyond the Standard Model that improves the sensitivity to signals with high jet multiplicity. The proposed searches gain access to high multiplicity signals by reclustering events into large-radius, or 'fat', jets and by requiring that each event has multiple massive jets. This technique is applied to supersymmetric scenarios in which gluinos are pair-produced and then subsequently decay to final states with either moderate quantities of missing energy or final states without missing energy. In each of these scenarios, the use of jet mass improves the estimated reach in gluino mass by 20% to 50% over current LHC searches.

  6. 6, 43254340, 2006 Scaling in ozone and

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 6, 4325­4340, 2006 Scaling in ozone and temperature C. Varotsos and D. Kirk-Davidoff Title Chemistry and Physics Discussions Long-memory processes in global ozone and temperature variations C #12;ACPD 6, 4325­4340, 2006 Scaling in ozone and temperature C. Varotsos and D. Kirk-Davidoff Title

  7. Scale invariance, unimodular gravity and dark energy

    E-Print Network [OSTI]

    Mikhail Shaposhnikov; Daniel Zenhausern

    2008-12-16T23:59:59.000Z

    We demonstrate that the combination of the ideas of unimodular gravity, scale invariance, and the existence of an exactly massless dilaton leads to the evolution of the universe supported by present observations: inflation in the past, followed by the radiation and matter dominated stages and accelerated expansion at present. All mass scales in this type of theories come from one and the same source.

  8. Dynamic method to measure calcium carbonate scaling

    SciTech Connect (OSTI)

    Zidovec, D. [Ashland Chemical, Boonton, NJ (United States)

    1999-11-01T23:59:59.000Z

    A method to measure scaling rate and the effect of scale control agents are discussed. It is based on calcium carbonate growth under controlled conditions in a capillary stainless steel column. The efficacy of blended compositions can be predicted when the response of individual components is known.

  9. OVERVIEW OF SCALE 6.2

    SciTech Connect (OSTI)

    Rearden, Bradley T [ORNL] [ORNL; Dunn, Michael E [ORNL] [ORNL; Wiarda, Dorothea [ORNL] [ORNL; Celik, Cihangir [ORNL] [ORNL; Bekar, Kursat B [ORNL] [ORNL; Williams, Mark L [ORNL] [ORNL; Peplow, Douglas E. [ORNL] [ORNL; Perfetti, Christopher M [ORNL] [ORNL; Gauld, Ian C [ORNL] [ORNL; Wieselquist, William A [ORNL] [ORNL; Lefebvre, Jordan P [ORNL] [ORNL; Lefebvre, Robert A [ORNL] [ORNL; Havluj, Frantisek [Nuclear Research Institute, Rez, Czech Republic] [Nuclear Research Institute, Rez, Czech Republic; Skutnik, Steven [The University of Tennessee] [The University of Tennessee; Dugan, Kevin [Texas A& M University] [Texas A& M University

    2013-01-01T23:59:59.000Z

    SCALE is an industry-leading suite of tools for nuclear systems modeling and simulation that provides comprehensive, verified and validated, user-friendly capabilities for criticality safety, reactor physics, radiation shielding, and sensitivity and uncertainty analysis. For more than 30 years, regulators, licensees, and research institutions around the world have used SCALE for nuclear safety analysis and design. SCALE provides a plug-and-play framework that includes three deterministic and three Monte Carlo radiation transport solvers that are selected based on the desired solution. SCALE includes the latest nuclear data libraries for continuous-energy and multigroup radiation transport as well as activation, depletion, and decay calculations. SCALE s graphical user interfaces assist with accurate system modeling, visualization, and convenient access to desired results. SCALE 6.2 provides several new capabilities and significant improvements in many existing features, especially with expanded CE Monte Carlo capabilities for criticality safety, shielding, depletion, and sensitivity and uncertainty analysis. A brief overview of SCALE capabilities is provided with emphasis on new features for SCALE 6.2.

  10. Jet Energy Scale March 31, 2009

    E-Print Network [OSTI]

    Jet Energy Scale March 31, 2009 #12;Jet energy vs parton energy Eta-dependent corrections: even scale: conversion from calo measurement to underlying jet Underlying event and out-of-cone corrections region, near-100% efficiency ·Excellent momentum measurement #12;Jet clustering · Jets are formed

  11. Scale evolution of double parton correlations

    E-Print Network [OSTI]

    Tomas Kasemets

    2014-11-17T23:59:59.000Z

    We review the effect of scale evolution on a number of different correlations in double parton scattering (DPS). The strength of the correlations generally decreases with the scale but at a rate which greatly varies between different types. Through studies of the evolution, an understanding of which correlations can be of experimental relevance in different processes and kinematical regions is obtained.

  12. Microfluidic Large-Scale Integration: The Evolution

    E-Print Network [OSTI]

    Quake, Stephen R.

    Microfluidic Large-Scale Integration: The Evolution of Design Rules for Biological Automation, polydimethylsiloxane Abstract Microfluidic large-scale integration (mLSI) refers to the develop- ment of microfluidic, are discussed. Several microfluidic components used as building blocks to create effective, complex, and highly

  13. Gamma-ray Bursts in Wavelet Space

    E-Print Network [OSTI]

    Z. Bagoly; I. Horvath; A. Meszaros; L. G. Balazs

    2005-08-31T23:59:59.000Z

    The gamma-ray burst's lightcurves have been analyzed using a special wavelet transformation. The applied wavelet base is based on a typical Fast Rise-Exponential Decay (FRED) pulse. The shape of the wavelet coefficients' total distribution is determined on the observational frequency grid. Our analysis indicates that the pulses in the long bursts' high energy channel lightcurves are more FRED-like than the lower ones, independently from the actual physical time-scale.

  14. Multiple-robot drug delivery strategy through coordinated teams of microswimmers

    SciTech Connect (OSTI)

    Kei Cheang, U; Kim, Min Jun, E-mail: mkim@coe.drexel.edu [Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, Pennsylvania 19104 (United States); Lee, Kyoungwoo [Department of Computer Science, Yonsei University, Seoul 120-749 (Korea, Republic of); Julius, Anak Agung [Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)

    2014-08-25T23:59:59.000Z

    Untethered robotic microswimmers are very promising to significantly improve various types of minimally invasive surgeries by offering high accuracy at extremely small scales. A prime example is drug delivery, for which a large number of microswimmers is required to deliver sufficient dosages to target sites. For this reason, the controllability of groups of microswimmers is essential. In this paper, we demonstrate simultaneous control of multiple geometrically similar but magnetically different microswimmers using a single global rotating magnetic field. By exploiting the differences in their magnetic properties, we triggered different swimming behaviors from the microswimmers by controlling the frequency and the strength of the global field, for example, one swim and the other does not while exposed to the same control input. Our results show that the balance between the applied magnetic torque and the hydrodynamic torque can be exploited for simultaneous control of two microswimmers to swim in opposite directions, with different velocities, and with similar velocities. This work will serve to establish important concepts for future developments of control systems to manipulate multiple magnetically actuated microswimmers and a step towards using swarms of microswimmers as viable workforces for complex operations.

  15. Solution to PDEs using radial basis function finite-differences (RBF-FD) on multiple GPUs

    SciTech Connect (OSTI)

    Bollig, Evan F., E-mail: bollig@scs.fsu.edu [Department of Scientific Computing, Florida State University, 400 Dirac Science Library, Tallahassee, FL 32306 (United States); Flyer, Natasha, E-mail: flyer@ucar.edu [Institute for Mathematics Applied to Geosciences, National Center for Atmospheric Research, 1850 Table Mesa Dr., Boulder, CO 80305 (United States)] [Institute for Mathematics Applied to Geosciences, National Center for Atmospheric Research, 1850 Table Mesa Dr., Boulder, CO 80305 (United States); Erlebacher, Gordon, E-mail: gerlebacher@fsu.edu [Department of Scientific Computing, Florida State University, 400 Dirac Science Library, Tallahassee, FL 32306 (United States)] [Department of Scientific Computing, Florida State University, 400 Dirac Science Library, Tallahassee, FL 32306 (United States)

    2012-08-30T23:59:59.000Z

    This paper presents parallelization strategies for the radial basis function-finite difference (RBF-FD) method. As a generalized finite differencing scheme, the RBF-FD method functions without the need for underlying meshes to structure nodes. It offers high-order accuracy approximation and scales as O(N) per time step, with N being with the total number of nodes. To our knowledge, this is the first implementation of the RBF-FD method to leverage GPU accelerators for the solution of PDEs. Additionally, this implementation is the first to span both multiple CPUs and multiple GPUs. OpenCL kernels target the GPUs and inter-processor communication and synchronization is managed by the Message Passing Interface (MPI). We verify our implementation of the RBF-FD method with two hyperbolic PDEs on the sphere, and demonstrate up to 9x speedup on a commodity GPU with unoptimized kernel implementations. On a high performance cluster, the method achieves up to 7x speedup for the maximum problem size of 27,556 nodes.

  16. Gutenberg-Richter Scaling - A New Paradigm

    E-Print Network [OSTI]

    Serino, C A; Klein, W

    2010-01-01T23:59:59.000Z

    We introduce a new model for an earthquake fault system that is composed of non-interacting simple lattice models with different levels of damage denoted by $q$. The undamaged lattice models ($q=0$) have Gutenberg-Richter scaling with a cumulative exponent $\\beta=1/2$, whereas the damaged models do not have well defined scaling. However, if we consider the "fault system" consisting of all models, damaged and undamaged, we get excellent scaling with the exponent depending on the relative frequency with which faults with a particular amount of damage occur in the fault system. This paradigm combines the idea that Gutenberg-Richter scaling is associated with an underlying critical point with the notion that the structure of a fault system also affects the statistical distribution of earthquakes. In addition, it provides a framework in which the variation, from one tectonic region to another, of the scaling exponent, or $b$-value, can be understood.

  17. Bare Higgs mass at Planck scale

    E-Print Network [OSTI]

    Yuta Hamada; Hikaru Kawai; Kin-ya Oda

    2015-01-19T23:59:59.000Z

    We compute one- and two-loop quadratic divergent contributions to the bare Higgs mass in terms of the bare couplings in the Standard Model. We approximate the bare couplings, defined at the ultraviolet cutoff scale, by the MS-bar ones at the same scale, which are evaluated by the two-loop renormalization group equations for the Higgs mass around 126GeV in the Standard Model. We obtain the cutoff scale dependence of the bare Higgs mass, and examine where it becomes zero. We find that when we take the current central value for the top quark pole mass, 173GeV, the bare Higgs mass vanishes if the cutoff is about 10^{23}GeV. With a 1.3 sigma smaller mass, 170GeV, the scale can be of the order of the Planck scale.

  18. Lower scaling dimensions of quarks and gluons and new energy scales

    E-Print Network [OSTI]

    F. Palumbo

    1996-05-08T23:59:59.000Z

    We consider the possibility that quarks and gluons, due to confinement, have lower scaling dimensions. In such a case there appear naturally new energy scales below which the standard theory is recovered. Arguments are given whereby for dimension $1/2$ of the quarks the theory is unitary also above these energy scales.

  19. Impact of Friction and Scale-Dependent Initial Stress on Radiated Energy-Moment Scaling

    E-Print Network [OSTI]

    Shaw, Bruce E.

    . Shaw Lamont­Doherty Earth Observatory, Columbia University, New York, USA The radiated energy coming271 Impact of Friction and Scale-Dependent Initial Stress on Radiated Energy-Moment Scaling Bruce E of elucidat- ing their radiated energy-moment scaling. We find, contrary to expectations, that apparent stress

  20. Discovering structure of data to create multiple perspective visualization

    E-Print Network [OSTI]

    Li, Yao, 1978-

    2004-01-01T23:59:59.000Z

    The goal of visualization is to help human understand, reason, and learn better and quicker. In pursuit of this goal, this thesis presents an architecture for intelligent visualization systems, which supports multiple ...

  1. Low-multiplicity Burst Search at the Sudbury Neutrino Observatory

    E-Print Network [OSTI]

    Chen, Min

    Results are reported from a search for low-multiplicity neutrino bursts in the Sudbury Neutrino Observatory. Such bursts could indicate the detection of a nearby core-collapse supernova explosion. The data were taken from ...

  2. Sourcelevel Debugging for Multiple Languages With Modest Programming Effort

    E-Print Network [OSTI]

    Ramsey, Norman

    Source­level Debugging for Multiple Languages With Modest Programming Effort Sukyoung Ryu present techniques that enable source­level debugging for multi­ ple languages at the cost of only modest

  3. Addressing the challenges of families with multiple risks

    E-Print Network [OSTI]

    Hanson, Marci J.; Carta, Judith J.

    1995-01-01T23:59:59.000Z

    For a significant segment of the population, the challenges faced by families are multiple and constitute risks for the children and other family members. The changing structures and characteristics of the American family are reviewed...

  4. Identification of critical locations across multiple infrastructures for terrorist actions

    E-Print Network [OSTI]

    Patterson, Sean A. (Sean Albert), 1981-

    2005-01-01T23:59:59.000Z

    This paper discusses a possible approach to ranking geographic regions that can influence multiple infrastructures. Once ranked, decision makers can determine whether these regions are critical locations based on their ...

  5. Multiplexed photography : single-exposure capture of multiple camera settings

    E-Print Network [OSTI]

    Green, Paul Elijah

    2009-01-01T23:59:59.000Z

    The space of camera settings is large and individual settings can vary dramatically from scene to scene. This thesis explores methods for capturing and manipulating multiple camera settings in a single exposure. Multiplexing ...

  6. Orientation Estimation for Multiple Large Fractures by Scattering Energy

    E-Print Network [OSTI]

    Zhang, Yang

    2006-01-01T23:59:59.000Z

    We have done the numerical modeling of seismic response to multiple sets of vertical large fractures by using finite-difference method (FD), which can easily handle media with monoclinic anisotropy. We consider three types ...

  7. TPA Code of Honor Guidelines Multiple Subject Credential Program

    E-Print Network [OSTI]

    de Lijser, Peter

    8/10 TPA Code of Honor Guidelines Multiple Subject Credential Program California State University, Fullerton The California TPA involves a series of take-home tasks that measure a teacher candidate's ability

  8. CONSENSUS SEEKING, FORMATION KEEPING, AND TRAJECTORY TRACKING IN MULTIPLE VEHICLE

    E-Print Network [OSTI]

    Ren, Wei

    to mobile robots, unmanned air vehicles, autonomous underwater vehicles, satellites, aircraft, spacecraft controllers for fixed wing unmanned air vehicles and nonholonomic mobile robots with velocity and heading rateCONSENSUS SEEKING, FORMATION KEEPING, AND TRAJECTORY TRACKING IN MULTIPLE VEHICLE COOPERATIVE

  9. Coupled Dynamic Analysis of Multiple Unit Floating Offshore Wind Turbine

    E-Print Network [OSTI]

    Bae, Yoon Hyeok

    2013-04-23T23:59:59.000Z

    In the present study, a numerical simulation tool has been developed for the rotor-floater-tether coupled dynamic analysis of Multiple Unit Floating Offshore Wind Turbine (MUFOWT) in the time domain including aero-blade-tower dynamics and control...

  10. V-096: Mozilla Thunderbird / SeaMonkey Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    A weakness and multiple vulnerabilities have been reported in Mozilla Thunderbird and SeaMonkey, which can be exploited by malicious people to disclose potentially sensitive information, conduct spoofing attacks, bypass certain security restrictions, and compromise a user's system.

  11. A Single-Product Inventory Model for Multiple Demand Classes

    E-Print Network [OSTI]

    Arslan, Hasan

    2005-05-27T23:59:59.000Z

    We consider a single-product inventory system that serves multiple demand classes, which differ in their shortage costs or service level requirements. We assume a critical-level control policy, and show the equivalence ...

  12. Inferring Regulatory Networks from Multiple Sources of Genomic Data

    E-Print Network [OSTI]

    Yeang, Chen-Hsiang

    for the degree of Doctor of Philosophy at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY September 2004 c Massachusetts Institute of Technology, 2004. Author a computational framework of building and validating simple, mechanistic models of gene regulation from multiple

  13. Network Vulnerability to Single, Multiple, and Probabilistic Physical Attacks

    E-Print Network [OSTI]

    Hay, David

    Network Vulnerability to Single, Multiple, and Probabilistic Physical Attacks Pankaj K. Agarwal, swami}@cs.arizona.edu Electrical Engineering, Columbia University. {hdavid, gil}@ee.columbia.edu Abstract--Telecommunications networks heavily rely on the physical infrastructure and, are therefore

  14. Phenomenology of COMPASS data: multiplicities and Phenomenology - part II

    SciTech Connect (OSTI)

    Anselmino, Mauro [TURIN; Boglione, Mariaelena [TURIN; Gonzalez H., J.O. [TORINO; Melis, Stefano [TURIN; Prokudin, Alexey [JLAB

    2015-01-01T23:59:59.000Z

    We present some of the main features of the multidimensional COMPASS multiplicities, via our analysis using the simple Gaussian model. We briefly discuss these results in connection with azimuthal asymmetries.

  15. U-171: DeltaV Products Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities have been reported in DeltaV products, which can be exploited by malicious people to conduct cross-site scripting attacks, SQL injection attacks, cause a DoS (Denial of Service), and compromise a vulnerable system.

  16. T-574: Google Chrome Multiple Flaws Let Remote Users Execute...

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

    Multiple vulnerabilities were reported in Google Chrome. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can bypass the pop-up...

  17. Multiple frequency electron cyclotron heating for the Levitated Dipole Experiment

    E-Print Network [OSTI]

    Mahar, Scott B

    2005-01-01T23:59:59.000Z

    The use of multiple frequencies of electron cyclotron resonance heating (ECRH) in the Levitated Dipole Experiment (LDX) is an important tool that will tailor the plasma profiles. Initial LDX plasmas have been created using ...

  18. Competitive behavior of airlines at multiple airport systems

    E-Print Network [OSTI]

    Chen, Edmund

    1995-01-01T23:59:59.000Z

    The way passenger traffic is distributed at multiple airport systems continues to intrigue air transportation planners, urban planners, and policy-makers as researchers attempt to unravel how airlines, air travelers and ...

  19. Governance Through Trading and Intervention: A Theory of Multiple Blockholders

    E-Print Network [OSTI]

    Edmans, Alex

    Traditional theories argue that governance is strongest under a single large blockholder, as she has high incentives to undertake value-enhancing interventions. However, most firms are held by multiple small blockholders. ...

  20. Anti-Synchronization in Multiple Time Delay Power Systems

    E-Print Network [OSTI]

    E. M. Shahverdiev

    2010-08-23T23:59:59.000Z

    We investigate chaos antisynchronization between two uni-directionally coupled multiple time delay power systems.The results are of certain importance to prevent power black-out in the entire power grid.

  1. Integrating automobile multiple intelligent warning systems : performance and policy implications

    E-Print Network [OSTI]

    Ho, Angela Wei Ling

    2006-01-01T23:59:59.000Z

    Intelligent driver warning systems can be found in many high-end vehicles on the road today, which will likely rapidly increase as they become standard equipment. However, introducing multiple warning systems into vehicles ...

  2. On the polar cap cascade pair multiplicity of young pulsars

    E-Print Network [OSTI]

    Timokhin, A N

    2015-01-01T23:59:59.000Z

    We study the efficiency of pair production in polar caps of young pulsars under a variety of conditions to estimate the maximum possible multiplicity of pair plasma in pulsar magnetospheres. We develop a semi-analytic model for calculation of cascade multiplicity which allows efficient exploration of the parameter space and corroborate it with direct numerical simulations. Pair creation processes are considered separately from particle acceleration in order to assess different factors affecting cascade efficiency, with acceleration of primary particles described by recent self-consistent non-stationary model of pair cascades. We argue that the most efficient cascades operate in the curvature radiation/synchrotron regime, the maximum multiplicity of pair plasma in pulsar magnetospheres is ~few x 10^5. The multiplicity of pair plasma in magnetospheres of young energetic pulsars weakly depends on the strength of the magnetic field and the radius of curvature of magnetic field lines and has a stronger dependence ...

  3. Climate Determinism Revisited: Multiple Equilibria in a Complex Climate Model

    E-Print Network [OSTI]

    Ferreira, David

    Multiple equilibria in a coupled ocean–atmosphere–sea ice general circulation model (GCM) of an aquaplanet with many degrees of freedom are studied. Three different stable states are found for exactly the same set of ...

  4. Coupled Dynamic Analysis of Multiple Unit Floating Offshore Wind Turbine 

    E-Print Network [OSTI]

    Bae, Yoon Hyeok

    2013-04-23T23:59:59.000Z

    In the present study, a numerical simulation tool has been developed for the rotor-floater-tether coupled dynamic analysis of Multiple Unit Floating Offshore Wind Turbine (MUFOWT) in the time domain including aero-blade-tower dynamics and control...

  5. Explicit force formlulas for two dimensional potential flow with multiple bodies and multiple free vortices

    E-Print Network [OSTI]

    Bai, Chen-Yuan; Wu, Zi-Niu

    2013-01-01T23:59:59.000Z

    For problems with multiple bodies, the current integral approach needs the use of auxiliary potential functions in order to have an individual force formula for each body. While the singularity approach, based on an extension of the unsteady Lagally theorem, is restricted to multibody and multivortex flows without bound vortex and vortex production. In this paper, we consider multibody and multivortex flow and derive force formulas, in both forms of singularity approach and integral approach but without auxiliary function, that give individual forces of each body for unsteady two dimensional potential flow with vortex production on the surface of bodies. A number of problems, including Karman vortex street, Wagner problem of impulsively starting flow, interaction of two circular cylinders with circulation, and interaction of an airfoil with a bound vortex, are used to validate the force formulas.

  6. High mass throughput particle generation using multiple nozzle spraying

    DOE Patents [OSTI]

    Pui, David Y. H. (Plymouth, MN); Chen, Da-Ren (Creve Coeur, MO)

    2009-03-03T23:59:59.000Z

    Spraying apparatus and methods that employ multiple nozzle structures for producing multiple sprays of particles, e.g., nanoparticles, for various applications, e.g., pharmaceuticals, are provided. For example, an electrospray dispensing device may include a plurality of nozzle structures, wherein each nozzle structure is separated from adjacent nozzle structures by an internozzle distance. Sprays of particles are established from the nozzle structures by creating a nonuniform electrical field between the nozzle structures and an electrode electrically isolated therefrom.

  7. On Computing Multiple Solutions of Nonlinear PDEs Without Variational Structure

    E-Print Network [OSTI]

    Wang, Changchun

    2012-07-16T23:59:59.000Z

    ON COMPUTING MULTIPLE SOLUTIONS OF NONLINEAR PDES WITHOUT VARIATIONAL STRUCTURE A Dissertation by CHANGCHUN WANG Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree... of DOCTOR OF PHILOSOPHY May 2012 Major Subject: Mathematics ON COMPUTING MULTIPLE SOLUTIONS OF NONLINEAR PDES WITHOUT VARIATIONAL STRUCTURE A Dissertation by CHANGCHUN WANG Submitted to the O ce of Graduate Studies of Texas A&M University in partial...

  8. Design and Analysis of Flexible Biodiesel Processes with Multiple Feedstocks

    E-Print Network [OSTI]

    Pokoo-Aikins, Grace Amarachukwu

    2011-10-21T23:59:59.000Z

    DESIGN AND ANALYSIS OF FLEXIBLE BIODIESEL PROCESSES WITH MULTIPLE FEEDSTOCKS A Dissertation by GRACE AMARACHUKWU POKOO-AIKINS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of DOCTOR OF PHILOSOPHY August 2010 Major Subject: Chemical Engineering DESIGN AND ANALYSIS OF FLEXIBLE BIODIESEL PROCESSES WITH MULTIPLE FEEDSTOCKS A Dissertation by GRACE AMARACHUKWU POKOO...

  9. CO[sub 2] flow patterns under multiphase flow: Heterogeneous field-scale conditions

    SciTech Connect (OSTI)

    Chang, Y.B.; Lim, M.T.; Pope, G.A.; Sepehrnoori, K. (Univ. of Texas, Austin, TX (United States))

    1994-08-01T23:59:59.000Z

    A finite-difference, equation-of-state (EOS), compositional simulator has been used to study CO[sub 2] flooding. First, unstable first-contact-miscible (FCM) displacements were simulated with a fine mesh to investigate the transition from gravity override to viscous fingering. Next, a direct comparison was made for FCM and multiple-contact-miscible (MCM) displacements under the same conditions to investigate effects of phase behavior on the growth of viscous fingers. Then, the effects of gravity, physical dispersion, capillary pressure, phase behavior, and heterogeneity were combined and simulated for CO[sub 2] flooding on a field scale with stochastic permeability fields.

  10. Heisenberg versus standard scaling in quantum metrology with Markov generated states and monitored environment

    E-Print Network [OSTI]

    Catalin Catana; Madalin Guta

    2014-07-04T23:59:59.000Z

    Finding optimal and noise robust probe states is a key problem in quantum metrology. In this paper we propose Markov dynamics as a possible mechanism for generating such states, and show how the Heisenberg scaling emerges for systems with multiple `dynamical phases' (stationary states), and noiseless channels. We model noisy channels by coupling the Markov output to `environment' ancillas, and consider the scenario where the environment is monitored to increase the quantum Fisher information of the output. In this setup we find that the survival of the Heisenberg limit depends on whether the environment receives `which phase' information about the memory system.

  11. Femtosecond-scale Synchronisation of Ultra-Intense Focused Laser Beams

    E-Print Network [OSTI]

    Corvan, D J; Cole, J; Ahmed, H; Krushelnick, K; Mangles, S P D; Najmudin, Z; Symes, D; Thomas, A G R; Yeung, M; Zepf, M; Zhao, Z; Sarri, G

    2014-01-01T23:59:59.000Z

    Synchronising ultra-short (~fs) and focussed laser pulses is a particularly difficult task, as this timescale lies orders of magnitude below the typical range of fast electronic devices. Here we present an optical technique that allows for femtosecond-scale synchronisation of the focal planes of two focussed laser pulses. This technique is virtually applicable to any focussing geometry and relative intensity of the two lasers. Experimental implementation of this technique provides excellent quantitative agreement with theoretical expectations. The proposed technique will prove highly beneficial for the next generation of multiple, petawatt class laser systems.

  12. Pressurized melt ejection into scaled reactor cavities

    SciTech Connect (OSTI)

    Tarbell, W.W.; Pilch, M.; Brockmann, J.E.; Ross, J.W.; Gilbert, D.W.

    1986-10-01T23:59:59.000Z

    This report describes four tests performed in the High-Pressure Melt Streaming Program (HIPS) using linear-scaled cavities of the Zion Nuclear Power Plant. These experiments were conducted to study the phenomena involved in high-pressure ejection of core debris into the cavity beneath the reactor pressure vessel. One-tenth and one-twentieth linear scale models of reactor cavities were constructed and instrumented. The first test used an apparatus constructed of alumina firebrick to minimize the potential interaction between the ejected melt and cavity material. The remaining three experiments used scaled representations of the Zion nuclear plant geometry, constructed of prototypic concrete composition.

  13. Cosmological constant in scale-invariant theories

    SciTech Connect (OSTI)

    Foot, Robert; Kobakhidze, Archil; Volkas, Raymond R. [School of Physics, University of Melbourne, Victoria 3010 (Australia)

    2011-10-01T23:59:59.000Z

    The incorporation of a small cosmological constant within radiatively broken scale-invariant models is discussed. We show that phenomenologically consistent scale-invariant models can be constructed which allow a small positive cosmological constant, providing certain relation between the particle masses is satisfied. As a result, the mass of the dilaton is generated at two-loop level. Another interesting consequence is that the electroweak symmetry-breaking vacuum in such models is necessarily a metastable ''false'' vacuum which, fortunately, is not expected to decay on cosmological time scales.

  14. Method and system for small scale pumping

    DOE Patents [OSTI]

    Insepov, Zeke (Darien, IL); Hassanein, Ahmed (Bolingbrook, IL)

    2010-01-26T23:59:59.000Z

    The present invention relates generally to the field of small scale pumping and, more specifically, to a method and system for very small scale pumping media through microtubes. One preferred embodiment of the invention generally comprises: method for small scale pumping, comprising the following steps: providing one or more media; providing one or more microtubes, the one or more tubes having a first end and a second end, wherein said first end of one or more tubes is in contact with the media; and creating surface waves on the tubes, wherein at least a portion of the media is pumped through the tube.

  15. Nuclear Scaling and the EMC Effect

    E-Print Network [OSTI]

    D. W. Higinbotham; J. Gomez; E. Piasetzky

    2010-09-20T23:59:59.000Z

    Results of recent EMC effect measurements and nuclear scaling measurements have both been attributed to local nuclear density effects and not properties of the bulk nuclear system. This lead us to the phenomenological observation that the ratio of the slopes in the 0.3 EMC data scale as the ratio of the x_B > 1 nuclear scaling plateaus. Using this correlation, we developed a phenomenological relation which reproduces the general trends and features of the EMC effect for nuclei from 3He to 56Fe.

  16. Adapting to a Changing Environment: Non-obvious Thresholds in Multi-Scale Systems

    E-Print Network [OSTI]

    Clare Perryman; Sebastian Wieczorek

    2014-07-09T23:59:59.000Z

    Many natural and technological systems fail to adapt to changing external conditions and move to a different state if the conditions vary too fast. Such "non-adiabatic" processes are ubiquitous, but little understood. We identify these processes with a new nonlinear phenomenon---an intricate threshold where a forced system fails to adiabatically follow a changing stable state. In systems with multiple time-scales such thresholds are generic, but non-obvious, meaning they cannot be captured by traditional stability theory. Rather, the phenomenon can be analysed using concepts from modern singular perturbation theory: folded singularities and canard trajectories, including composite canards. Thus, non-obvious thresholds should explain the failure to adapt to a changing environment in a wide range of multi-scale systems including: tipping points in the climate system, regime shifts in ecosystems, excitability in nerve cells, adaptation failure in regulatory genes, and adiabatic switching in technology.

  17. PROPERTIES IMPORTANT TO MIXING FOR WTP LARGE SCALE INTEGRATED TESTING

    SciTech Connect (OSTI)

    Koopman, D.; Martino, C.; Poirier, M.

    2012-04-26T23:59:59.000Z

    Large Scale Integrated Testing (LSIT) is being planned by Bechtel National, Inc. to address uncertainties in the full scale mixing performance of the Hanford Waste Treatment and Immobilization Plant (WTP). Testing will use simulated waste rather than actual Hanford waste. Therefore, the use of suitable simulants is critical to achieving the goals of the test program. External review boards have raised questions regarding the overall representativeness of simulants used in previous mixing tests. Accordingly, WTP requested the Savannah River National Laboratory (SRNL) to assist with development of simulants for use in LSIT. Among the first tasks assigned to SRNL was to develop a list of waste properties that matter to pulse-jet mixer (PJM) mixing of WTP tanks. This report satisfies Commitment 5.2.3.1 of the Department of Energy Implementation Plan for Defense Nuclear Facilities Safety Board Recommendation 2010-2: physical properties important to mixing and scaling. In support of waste simulant development, the following two objectives are the focus of this report: (1) Assess physical and chemical properties important to the testing and development of mixing scaling relationships; (2) Identify the governing properties and associated ranges for LSIT to achieve the Newtonian and non-Newtonian test objectives. This includes the properties to support testing of sampling and heel management systems. The test objectives for LSIT relate to transfer and pump out of solid particles, prototypic integrated operations, sparger operation, PJM controllability, vessel level/density measurement accuracy, sampling, heel management, PJM restart, design and safety margin, Computational Fluid Dynamics (CFD) Verification and Validation (V and V) and comparison, performance testing and scaling, and high temperature operation. The slurry properties that are most important to Performance Testing and Scaling depend on the test objective and rheological classification of the slurry (i.e., Newtonian or non-Newtonian). The most important properties for testing with Newtonian slurries are the Archimedes number distribution and the particle concentration. For some test objectives, the shear strength is important. In the testing to collect data for CFD V and V and CFD comparison, the liquid density and liquid viscosity are important. In the high temperature testing, the liquid density and liquid viscosity are important. The Archimedes number distribution combines effects of particle size distribution, solid-liquid density difference, and kinematic viscosity. The most important properties for testing with non-Newtonian slurries are the slurry yield stress, the slurry consistency, and the shear strength. The solid-liquid density difference and the particle size are also important. It is also important to match multiple properties within the same simulant to achieve behavior representative of the waste. Other properties such as particle shape, concentration, surface charge, and size distribution breadth, as well as slurry cohesiveness and adhesiveness, liquid pH and ionic strength also influence the simulant properties either directly or through other physical properties such as yield stress.

  18. Validation of Multiple Tools for Flat Plate Photovoltaic Modeling Against Measured Data

    SciTech Connect (OSTI)

    Freeman, J.; Whitmore, J.; Blair, N.; Dobos, A. P.

    2014-08-01T23:59:59.000Z

    This report expands upon a previous work by the same authors, published in the 40th IEEE Photovoltaic Specialists conference. In this validation study, comprehensive analysis is performed on nine photovoltaic systems for which NREL could obtain detailed performance data and specifications, including three utility-scale systems and six commercial scale systems. Multiple photovoltaic performance modeling tools were used to model these nine systems, and the error of each tool was analyzed compared to quality-controlled measured performance data. This study shows that, excluding identified outliers, all tools achieve annual errors within +/-8% and hourly root mean squared errors less than 7% for all systems. It is further shown using SAM that module model and irradiance input choices can change the annual error with respect to measured data by as much as 6.6% for these nine systems, although all combinations examined still fall within an annual error range of +/-8.5%. Additionally, a seasonal variation in monthly error is shown for all tools. Finally, the effects of irradiance data uncertainty and the use of default loss assumptions on annual error are explored, and two approaches to reduce the error inherent in photovoltaic modeling are proposed.

  19. Dominant delayed neutron precursors to model reactivity predictions for multiple fissioning nuclides

    SciTech Connect (OSTI)

    Loaiza, D.J.; Haskin, F.E.

    2000-01-01T23:59:59.000Z

    The product of cumulative yield and probability of neutron emission is used to assess the relative importance of known delayed neutron precursors. Thirteen precursors are consistently dominant. Nonlinear fits to experimental delayed neutron decay data distinguish the decay constants of the three longest-lived dominant precursors: {sup 87}Br, {sup 137}I, and {sup 88}Br. Sensitivity calculations based on a six-to seven-group transformation lead to a proposed seven-group formulation in which the group decay constants are those of dominant precursors: {sup 87}Br, {sup 137}I, {sup 88}Br, {sup 93}Rb, {sup 139}I, {sup 91}Br, and {sup 96}Rb. An alternative six-group formulation is obtained by using the mean of the {sup 137}I and {sup 88}Br decay constants for group 2. The use of the suggested dominant precursor decay constants improves the goodness of fit to experimental data compared to that obtained from nonlinear least squares in which both group yields and decay constants are determined empirically. Reactivity worth and transient analyses confirm that the positive reactivity scale is preserved in the transformation. A known bias in the negative reactivity scale is eliminated by forcing the half-life of the longest-lived group to be the 55.9-s half-life of {sup 87}Br. The proposed use of dominant precursor decay constants offers significant simplifications in data analysis and the analysis of fast, epithermal, and thermal reactors with multiple fissioning nuclides.

  20. Multiple Events Lead to Dendritic Spine Loss in Triple Transgenic Alzheimer's Disease Mice

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    amyloid deposition leads to local synaptic abnormalities andMultiple Events Lead to Dendritic Spine Loss in Tripleal. (2010) Multiple Events Lead to Dendritic Spine Loss in