Sample records for advanced joint inversion

  1. Stochastic Joint Inversion for Integrated Data Interpretation...

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

    Stochastic Joint Inversion for Integrated Data Interpretation in Geothermal Exploration Stochastic Joint Inversion for Integrated Data Interpretation in Geothermal Exploration...

  2. Joint inversion of electrical and seismic data for Fracture char...

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

    Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems Joint inversion of electrical and seismic data for Fracture char....

  3. Joint inversion of electrical and seismic data for Fracture char...

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

    Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems Michael Batzle, PI Colorado School of Mines Track Name: Fluid...

  4. Joint Fuel Cell Technologies and Advanced Manufacturing Webinar...

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

    Joint Fuel Cell Technologies and Advanced Manufacturing Webinar Joint Fuel Cell Technologies and Advanced Manufacturing Webinar Presentation slides from the joint Fuel Cell...

  5. Time-lapse Joint Inversion of Geophysical Data and its Applications...

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

    Time-lapse Joint Inversion of Geophysical Data and its Applications to Geothermal Prospecting Time-lapse Joint Inversion of Geophysical Data and its Applications to Geothermal...

  6. Direct Reservoir Parameter Estimation Using Joint Inversion of Marine Seismic AVA & CSEM Data

    E-Print Network [OSTI]

    2005-01-01T23:59:59.000Z

    estimation of reservoir parameters from geophysical data isthe seismic data fit at times below the reservoir. InversionReservoir Parameter Estimation Using Joint Inversion of Marine Seismic AVA & CSEM Data

  7. Direct Reservoir Parameter Estimation Using Joint Inversion ofMarine Seismic AVA&CSEM Data

    SciTech Connect (OSTI)

    Hoversten, G. Michael; Cassassuce, Florence; Gasperikova, Erika; Newman,Gregory A.; Rubin, Yoram; Zhangshuan, Hou; Vasco, Don

    2005-01-12T23:59:59.000Z

    A new joint inversion algorithm to directly estimate reservoir parameters is described. This algorithm combines seismic amplitude versus angle (AVA) and marine controlled source electromagnetic (CSEM) data. The rock-properties model needed to link the geophysical parameters to the reservoir parameters is described. Errors in the rock-properties model parameters, measured in percent, introduce errors of comparable size in the joint inversion reservoir parameter estimates. Tests of the concept on synthetic one-dimensional models demonstrate improved fluid saturation and porosity estimates for joint AVA-CSEM data inversion (compared to AVA or CSEM inversion alone). Comparing inversions of AVA, CSEM, and joint AVA-CSEM data over the North Sea Troll field, at a location with well control, shows that the joint inversion produces estimated gas saturation, oil saturation and porosity that is closest (as measured by the RMS difference, L1 norm of the difference, and net over the interval) to the logged values whereas CSEM inversion provides the closest estimates of water saturation.

  8. Inverse free electron laser accelerator for advanced light sources

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

    Duris, J. P.; Musumeci, P.; Li, R. K.

    2012-06-01T23:59:59.000Z

    We discuss the inverse free electron laser (IFEL) scheme as a compact high gradient accelerator solution for driving advanced light sources such as a soft x-ray free electron laser amplifier or an inverse Compton scattering based gamma-ray source. In particular, we present a series of new developments aimed at improving the design of future IFEL accelerators. These include a new procedure to optimize the choice of the undulator tapering, a new concept for prebunching which greatly improves the fraction of trapped particles and the final energy spread, and a self-consistent study of beam loading effects which leads to an energy-efficient high laser-to-beam power conversion.

  9. Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen* and G. Michael Hoversten, Lawrence Berkeley National Laboratory

    E-Print Network [OSTI]

    Chen, Jinsong

    Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen the stochastic framework, both reservoir parameters and geophysical attributes at unsampled locations. Introduction Conventional methods for reservoir parameter estimation using multiple sources of geophysical data

  10. Joint inversion of crosshole radar and seismic traveltimes acquired at the South Oyster BacterialTransport Site

    SciTech Connect (OSTI)

    Linde, Niklas; Tryggvason, Ari; Peterson, John; Hubbard, Susan

    2008-04-15T23:59:59.000Z

    The structural approach to joint inversion, entailing common boundaries or gradients, offers a flexible way to invert diverse types of surface-based and/or crosshole geophysical data. The cross-gradients function has been introduced as a means to construct models in which spatial changes in two models are parallel or anti-parallel. Inversion methods that use such structural constraints also provide estimates of non-linear and non-unique field-scale relationships between model parameters. Here, we invert jointly crosshole radar and seismic traveltimes for structurally similar models using an iterative non-linear traveltime tomography algorithm. Application of the inversion scheme to synthetic data demonstrates that it better resolves lithological boundaries than the individual inversions. Tests of the scheme on observed radar and seismic data acquired within a shallow aquifer illustrate that the resultant models have improved correlations with flowmeter data than with models based on individual inversions. The highest correlation with the flowmeter data is obtained when the joint inversion is combined with a stochastic regularization operator, where the vertical integral scale is estimated from the flowmeter data. Point-spread functions shows that the most significant resolution improvements of the joint inversion is in the horizontal direction.

  11. Advanced Imaging and Ultra-fast Material Probing With Inverse...

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

    Imaging and Ultra-fast Material Probing With Inverse Compton Scattering A proposal to the Brookhaven Accelerator Test Facility Gerard Andonian, Alberto Bacci, Ubaldo...

  12. Advanced inverse techniques for the design of directional solidi cation processes

    E-Print Network [OSTI]

    Zabaras, Nicholas J.

    Advanced inverse techniques for the design of directional solidi cation processes Nicholas Zabaras methodologies for thermal process design can be developed using inverse problem theory. Such techniques the problem of designing the mold cooling/heating conditions such that stable solidi cation growth is obtained

  13. Joint inversion of marine seismic AVA and CSEM data using statistical rock-physics models and Markov random fields: Stochastic inversion of AVA and CSEM data

    SciTech Connect (OSTI)

    Chen, J.; Hoversten, G.M.

    2011-09-15T23:59:59.000Z

    Joint inversion of seismic AVA and CSEM data requires rock-physics relationships to link seismic attributes to electrical properties. Ideally, we can connect them through reservoir parameters (e.g., porosity and water saturation) by developing physical-based models, such as Gassmann抯 equations and Archie抯 law, using nearby borehole logs. This could be difficult in the exploration stage because information available is typically insufficient for choosing suitable rock-physics models and for subsequently obtaining reliable estimates of the associated parameters. The use of improper rock-physics models and the inaccuracy of the estimates of model parameters may cause misleading inversion results. Conversely, it is easy to derive statistical relationships among seismic and electrical attributes and reservoir parameters from distant borehole logs. In this study, we develop a Bayesian model to jointly invert seismic AVA and CSEM data for reservoir parameter estimation using statistical rock-physics models; the spatial dependence of geophysical and reservoir parameters are carried out by lithotypes through Markov random fields. We apply the developed model to a synthetic case, which simulates a CO{sub 2} monitoring application. We derive statistical rock-physics relations from borehole logs at one location and estimate seismic P- and S-wave velocity ratio, acoustic impedance, density, electrical resistivity, lithotypes, porosity, and water saturation at three different locations by conditioning to seismic AVA and CSEM data. Comparison of the inversion results with their corresponding true values shows that the correlation-based statistical rock-physics models provide significant information for improving the joint inversion results.

  14. Time-lapse gravity: A numerical demonstration using robust inversion and joint interpretation of 4D surface and borehole data

    E-Print Network [OSTI]

    seismic sur- veys. Results hint that the true value of time-lapse gravity as an additional tool and ongoing sensor technologies, combined with advances in computing power and robust inversion, can extract successful measure of fluid movement with time-lapse gravity experiments, although poorly documented

  15. New advances in three-dimensional controlled-sourceelectromagnetic inversion

    SciTech Connect (OSTI)

    Commer, Michael; Newman, Gregory A.

    2007-05-19T23:59:59.000Z

    New techniques for improving both the computational andimaging performance of the three dimensional (3D) electromagnetic inverseproblem are presented. A non-linear conjugate gradient algorithm is theframework of the inversion scheme. Full wave equation modelling forcontrolled sources is utilized for data simulation along with anefficient gradient computation approach for the model update. Improvingthe modelling efficiency of the 3D finite difference method involves theseparation of the potentially large modelling mesh, defining the set ofmodel parameters, from the computational finite difference meshes usedfor field simulation. Grid spacings and thus overall grid sizes can bereduced and optimized according to source frequencies and source-receiveroffsets of a given input data set. Further computational efficiency isobtained by combining different levels of parallelization. While theparallel scheme allows for an arbitrarily large number of parallel tasks,the relative amount of message passing is kept constant. Imageenhancement is achieved by model parameter transformation functions,which enforce bounded conductivity parameters and thus prevent parameterovershoots. Further, a remedy for treating distorted data within theinversion process is presented. Data distortions simulated here includepositioning errors and a highly conductive overburden, hiding the desiredtarget signal. The methods are demonstrated using both synthetic andfield data.

  16. A Joint Workshop of the Canberra College of Advanced Education The Australian Water and Wastewater Association

    E-Print Network [OSTI]

    Canberra, University of

    challengefacing Australian water authorities is effec- tive operation in an environment of scarce resources~ 禄 A Joint Workshop of the Canberra College of Advanced Education and The Australian Water in operation and those envisaged for the future. Although the primary emphasiswas on water allocation

  17. Virtual Welded - Joint Design Integrating Advanced Materials and Processing Technology

    SciTech Connect (OSTI)

    Yang, Zhishang; Ludewig, Howard W.; Babu, S. Suresh

    2005-06-30T23:59:59.000Z

    Virtual Welede-Joint Design, a systematic modeling approach, has been developed in this project to predict the relationship of welding process, microstructure, properties, residual stress, and the ultimate weld fatique strength. This systematic modeling approach was applied in the welding of high strength steel. A special welding wire was developed in this project to introduce compressive residual stress at weld toe. The results from both modeling and experiments demonstrated that more than 10x fatique life improvement can be acheived in high strength steel welds by the combination of compressive residual stress from the special welding wire and the desired weld bead shape from a unique welding process. The results indicate a technology breakthrough in the design of lightweight and high fatique performance welded structures using high strength steels.

  18. Oil shale, tar sand, coal research, advanced exploratory process technology jointly sponsored research

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    Accomplishments for the quarter are presented for the following areas of research: oil shale, tar sand, coal, advanced exploratory process technology, and jointly sponsored research. Oil shale research includes; oil shale process studies, environmental base studies for oil shale, and miscellaneous basic concept studies. Tar sand research covers process development. Coal research includes; underground coal gasification, coal combustion, integrated coal processing concepts, and solid waste management. Advanced exploratory process technology includes; advanced process concepts, advanced mitigation concepts, and oil and gas technology. Jointly sponsored research includes: organic and inorganic hazardous waste stabilization; development and validation of a standard test method for sequential batch extraction fluid; operation and evaluation of the CO[sub 2] HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid state NMR analysis of Mesa Verde Group, Greater Green River Basin, tight gas sands; flow-loop testing of double-wall pipe for thermal applications; characterization of petroleum residue; shallow oil production using horizontal wells with enhanced recovery techniques; and menu driven access to the WDEQ Hydrologic Data Management Systems.

  19. Structure of the Crust beneath Cameroon, West Africa, from the Joint Inversion of Rayleigh Wave Group Velocities and Receiver Functions

    SciTech Connect (OSTI)

    Tokam, A K; Tabod, C T; Nyblade, A A; Julia, J; Wiens, D A; Pasyanos, M E

    2010-02-18T23:59:59.000Z

    The Cameroon Volcanic Line (CVL) is a major geologic feature that cuts across Cameroon from the south west to the north east. It is a unique volcanic lineament which has both an oceanic and a continental sector and consists of a chain of Tertiary to Recent, generally alkaline volcanoes stretching from the Atlantic island of Pagalu to the interior of the African continent. The oceanic sector includes the islands of Bioko (formerly Fernando Po) and Sao Tome and Principe while the continental sector includes the Etinde, Cameroon, Manengouba, Bamboutos, Oku and Mandara mountains, as well as the Adamawa and Biu Plateaus. In addition to the CVL, three other major tectonic features characterize the region: the Benue Trough located northwest of the CVL, the Central African Shear Zone (CASZ), trending N70 degrees E, roughly parallel to the CVL, and the Congo Craton in southern Cameroon. The origin of the CVL is still the subject of considerable debate, with both plume and non-plume models invoked by many authors (e.g., Deruelle et al., 2007; Ngako et al, 2006; Ritsema and Allen, 2003; Burke, 2001; Ebinger and Sleep, 1998; Lee et al, 1994; Dorbath et al., 1986; Fairhead and Binks, 1991; King and Ritsema, 2000; Reusch et al., 2010). Crustal structure beneath Cameroon has been investigated previously using active (Stuart et al, 1985) and passive (Dorbath et al., 1986; Tabod, 1991; Tabod et al, 1992; Plomerova et al, 1993) source seismic data, revealing a crust about 33 km thick at the south-western end of the continental portion of the CVL (Tabod, 1991) and the Adamawa Plateau, and thinner crust (23 km thick) beneath the Garoua Rift in the north (Stuart et al, 1985) (Figure 1). Estimates of crustal thickness obtained using gravity data show similar variations between the Garoua rift, Adamawa Plateau, and southern part of the CVL (Poudjom et al., 1995; Nnange et al., 2000). In this study, we investigate further crustal structure beneath the CVL and the adjacent regions in Cameroon using 1-D shear wave velocity models obtained from the joint inversion of Rayleigh wave group velocities and P-receiver functions for 32 broadband seismic stations. From the 1-D shear wave velocity models, we obtain new insights into the composition and structure of the crust and upper mantle across Cameroon. After briefly reviewing the geological framework of Cameroon, we describe the data and the joint inversion method, and then interpret variations in crustal structure found beneath Cameroon in terms of the tectonic history of the region.

  20. Virtual Welded-Joint Design Integrating Advanced Materials and Processing Technologies

    SciTech Connect (OSTI)

    Yang, Z.; Dong, P.; Liu, S.; Babu, S.; Olson, G.; DebRoy, T.

    2005-04-15T23:59:59.000Z

    The primary goal of this project is to increase the fatigue life of a welded-joint by 10 times and to reduce energy use by 25% through product performance and productivity improvements using an integrated modeling approach. The fatigue strength of a welded-joint is currently the bottleneck to design high performance and lightweight welded structures using advanced materials such as high strength steels. In order to achieve high fatigue strength in a welded-joint it is necessary to manage the weld bead shape for lower stress concentration, produce preferable residual stress distribution, and obtain the desired microstructure for improved material toughness and strength. This is a systems challenge that requires the optimization of the welding process, the welding consumable, the base material, as well as the structure design. The concept of virtual welded-joint design has been proposed and established in this project. The goal of virtual welded-joint design is to develop a thorough procedure to predict the relationship of welding process, microstructure, property, residual stress, and the ultimate weld fatigue strength by a systematic modeling approach. The systematic approach combines five sub-models: weld thermal-fluid model, weld microstructure model, weld material property model, weld residual stress model, and weld fatigue model. The systematic approach is thus based on interdisciplinary applied sciences including heat transfer, computational fluid dynamics, materials science, engineering mechanics, and material fracture mechanics. The sub-models are based on existing models with further development. The results from modeling have been validated with critical experiments. The systematic modeling approach has been used to design high fatigue resistant welds considering the combined effects of weld bead geometry, residual stress, microstructure, and material property. In particular, a special welding wire has been developed in this project to introduce compressive residual stress at weld toe for weld fatigue resistance.

  1. Full-Wave Seismic Data Assimilation: Theoretical Background and Recent Advances Abstract--The seismological inverse problem has much in

    E-Print Network [OSTI]

    Chen, Po

    Full-Wave Seismic Data Assimilation: Theoretical Background and Recent Advances PO CHEN 1 Abstract for estimating seismic source and Earth structure parameters in the form of weak-con- straint generalized inverse, in which the seismic wave equation and the associated initial and boundary conditions are allowed to con

  2. Joint Inversion of Reservoir Production Measurements and 3D Pre-Stack Seismic Data: Proof Carlos Torres-Verdn, Zhan Wu, Omar J. Varela, Mrinal K. Sen, and Indrajit G. Roy.

    E-Print Network [OSTI]

    Torres-Verd韓, Carlos

    in this paper is also suitable for the quantitative interpretation of 4D seismic data. Simulation and InversionJoint Inversion of Reservoir Production Measurements and 3D Pre-Stack Seismic Data: Proof-stack seismic data and fluid production history. The production measurements and the seismic data

  3. Validation of the BERT Point Source Inversion Scheme Using the Joint Urban 2003 Tracer Experiment Dataset - Final Report

    SciTech Connect (OSTI)

    Brambilla, Sara [Los Alamos National Laboratory; Brown, Michael J. [Los Alamos National Laboratory

    2012-06-18T23:59:59.000Z

    A terrorist attack in a U.S. city utilizing biological weapons could have severe consequences. A biological agent could be aerosolized and emitted into the air in the middle of a city, invisibly traveling with the winds, and dosing an unknowing populace. The magnitude of the problem would only be revealed as sick people started arriving several days later at hospitals with symptoms, many already too ill to be saved. A national program has deployed a network of biological agent collectors in U.S. cities to provide early detection of a bio-weapon attack, thereby hastening medical intervention and potentially saving many thousands of lives. In fact, the most effective treatment takes place prior to infection or in its early stages and early warning might reduce the disease progression and, consequently, the possibility of an outbreak. If a biological attack were to occur in a city, one or more collectors may register hits with specific dosages and the city would be alerted that an attack had taken place. This piece of information alone, however, would not be enough to determine how serious the attack was, i.e., how much biological agent was released into the air and where the bio-plume traveled. The first responders and public health communities will want to know what regions were impacted, how many persons might get sick, which people most need medical supplies, and where to clean up. The law enforcement community will want to look for forensic evidence at the release location. The Bio-Agent Event Reconstruction Tool (BERT) has been developed in order to recreate what might have happened during an airborne biological agent attack based on biological agent collector measurements and wind collectors mounted around a city. The tool can be used to estimate possible release areas while eliminating other areas, and can estimate bounds on the amount of material released. The tool can then be used to project forward from the possible source areas to estimate potential hazard zones. Due to a unique source inversion technique - called the upwind collector footprint approach - the tool runs fast and the source regions can be determined in a few minutes. In this report, we provide an overview of the BERT framework, followed by a description of the source inversion technique. The Joint URBAN 2003 field experiment held in Oklahoma City that was used to validate BERT is then described. Subsequent sections describe the metrics used for evaluation, the comparison of the experimental data and BERT output, and under what conditions the BERT tool succeeds and performs poorly. Results are aggregated in different ways (e.g., daytime vs. nighttime releases, 1 vs. 2 vs. 3 hit collectors) to determine if BERT shows any systematic errors. Finally, recommendations are given for how to improve the code and procedures for optimizing performance in operational mode.

  4. Estimation of in-situ petrophysical properties from wireline formation tester and induction logging measurements: A joint inversion approach

    E-Print Network [OSTI]

    Torres-Verd韓, Carlos

    -filtrate invasion and formation test. A fully implicit finite- difference black-oil reservoir simulator with brine phenomena in porous media can be coupled through fluid saturation equations. Thus, a multi-physics inversion

  5. Sensitivity analysis for joint inversion of ground-penetrating radar and thermal-hydrological data from a large-scale underground heater test

    E-Print Network [OSTI]

    Kowalsky, M.B.; Birkholzer, J.; Peterson, J.; Finsterle, S.; Mukhopadhya y, S.; Tsang, Y.T.

    2008-01-01T23:59:59.000Z

    first step toward comprehensive inversion of the heater testfirst step toward a full inversion of the heater test data,

  6. Assisted Seismic Matching: Joint Inversion of Seismic, Rock Physics and Basin Modeling Ulisses T. Mello*, IBM T. J. Watson Res. Center, Stewart A. Levin, Halliburton, Vanessa Lopez, Andrew Conn,

    E-Print Network [OSTI]

    Zhang, Hongchao

    Assisted Seismic Matching: Joint Inversion of Seismic, Rock Physics and Basin Modeling Ulisses T physics, and seismic attributes, including seismic amplitude to match seismic data. Introduction a match to seismic data. In particular, we seek to match not just event timing (phase) but also reflection

  7. The Analysis of Penumbral Fine Structure Using an Advanced Inversion Technique

    E-Print Network [OSTI]

    Jan Jur?醟; Luis Bellot Rubio; Kiyoshi Ichimoto; Yukio Katsukawa; Bruce Lites; Shin'ichi Nagata; Toshifumi Shimizu; Yoshinori Suematsu; Theodore Tarbell; Alan Title; Saku Tsuneta

    2007-07-11T23:59:59.000Z

    We present a method to study the penumbral fine structure using data obtained by the spectropolarimeter onboard HINODE. For the first time, the penumbral filaments can be considered as resolved in spectropolarimetric measurements. This enables us to use inversion codes with only one-component model atmospheres, and thus assign the obtained stratifications of plasma parameters directly to the penumbral fine structure. This approach is applied to the limb-side part of the penumbra in active region NOAA 10923. The preliminary results show a clear dependence of the plasma parameters on continuum intensity in the inner penumbra, i.e. weaker and horizontal magnetic field along with increased line-of-sight velocity are found in the low layers of the bright filaments. The results in the mid penumbra are ambiguous and future analyses are necessary to unveil the magnetic field structure and other plasma parameters there.

  8. Sensitivity of Solder Joint Fatigue to Sources of Variation in Advanced Vehicular Power Electronics Cooling

    SciTech Connect (OSTI)

    Vlahinos, A.; O'Keefe, M.

    2010-06-01T23:59:59.000Z

    This paper demonstrates a methodology for taking variation into account in thermal and fatigue analyses of the die attach for an inverter of an electric traction drive vehicle. This method can be used to understand how variation and mission profile affect parameters of interest in a design. Three parameters are varied to represent manufacturing, material, and loading variation: solder joint voiding, aluminum nitride substrate thermal conductivity, and heat generation at the integrated gate bipolar transistor. The influence of these parameters on temperature and solder fatigue life is presented. The heat generation loading variation shows the largest influence on the results for the assumptions used in this problem setup.

  9. Proceedings of the joint contractors meeting: FE/EE Advanced Turbine Systems conference FE fuel cells and coal-fired heat engines conference

    SciTech Connect (OSTI)

    Geiling, D.W. [ed.

    1993-08-01T23:59:59.000Z

    The joint contractors meeting: FE/EE Advanced Turbine Systems conference FEE fuel cells and coal-fired heat engines conference; was sponsored by the US Department of Energy Office of Fossil Energy and held at the Morgantown Energy Technology Center, P.O. Box 880, Morgantown, West Virginia 26507-0880, August 3--5, 1993. Individual papers have been entered separately.

  10. Joint System Prognostics For Increased Efficiency And Risk Mitigation In Advanced Nuclear Reactor Instrumentation and Control

    SciTech Connect (OSTI)

    Donald D. Dudenhoeffer; Tuan Q. Tran; Ronald L. Boring; Bruce P. Hallbert

    2006-08-01T23:59:59.000Z

    The science of prognostics is analogous to a doctor who, based on a set of symptoms and patient tests, assesses a probable cause, the risk to the patient, and a course of action for recovery. While traditional prognostics research has focused on the aspect of hydraulic and mechanical systems and associated failures, this project will take a joint view in focusing not only on the digital I&C aspect of reliability and risk, but also on the risks associated with the human element. Model development will not only include an approximation of the control system physical degradation but also on human performance degradation. Thus the goal of the prognostic system is to evaluate control room operation; to identify and potentially take action when performance degradation reduces plant efficiency, reliability or safety.

  11. Oil shale, tar sand, coal research, advanced exploratory process technology, jointly sponsored research. Quarterly technical progress report, January--March 1993

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    Accomplishments for the past quarter are briefly described for the following areas of research: oil shale; tar sand; coal; advanced exploratory process technology; and jointly sponsored research. Oil shale and tar sand researches cover processing studies. Coal research includes: coal combustion; integrated coal processing concepts; and solid waste management. Advanced exploratory process technology covers: advanced process concepts; advanced mitigation concepts; and oil and gas technology. Jointly sponsored research includes: organic and inorganic hazardous waste stabilization; CROW{sup TM} field demonstration with Bell Lumber and Pole; development and validation of a standard test method for sequential batch extraction fluid; operation and evaluation of the CO{sub 2} HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid-state NMR analysis of Mesaverde Group, Greater Green River Basin tight gas sands; characterization of petroleum residue; shallow oil production using horizontal wells with enhanced oil recovery techniques; surface process study for oil recovery using a thermal extraction process; oil field waste cleanup using tank bottom recovery process; remote chemical sensor development; in situ treatment of manufactured gas plant contaminated soils demonstration program; solid-state NMR analysis of naturally and artificially matured kerogens; and development of an effective method for the clean-up of natural gas.

  12. Oil shale, tar sand, coal research, advanced exploratory process technology jointly sponsored research. Quarterly technical progress report, April--June 1992

    SciTech Connect (OSTI)

    Not Available

    1992-12-01T23:59:59.000Z

    Accomplishments for the quarter are presented for the following areas of research: oil shale, tar sand, coal, advanced exploratory process technology, and jointly sponsored research. Oil shale research includes; oil shale process studies, environmental base studies for oil shale, and miscellaneous basic concept studies. Tar sand research covers process development. Coal research includes; underground coal gasification, coal combustion, integrated coal processing concepts, and solid waste management. Advanced exploratory process technology includes; advanced process concepts, advanced mitigation concepts, and oil and gas technology. Jointly sponsored research includes: organic and inorganic hazardous waste stabilization; development and validation of a standard test method for sequential batch extraction fluid; operation and evaluation of the CO{sub 2} HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid state NMR analysis of Mesa Verde Group, Greater Green River Basin, tight gas sands; flow-loop testing of double-wall pipe for thermal applications; characterization of petroleum residue; shallow oil production using horizontal wells with enhanced recovery techniques; and menu driven access to the WDEQ Hydrologic Data Management Systems.

  13. University of Maryland Institute for Advanced Computer Studies UMIACS' programs are led by distinguished faculty, many of whom hold joint

    E-Print Network [OSTI]

    Gruner, Daniel S.

    by distinguished faculty, many of whom hold joint appointments in Computer Science, Electrical and Computer, and over 400 workstations and PCs. 路 UMIACS' environment is enriched by a strong outreach program including, operating systems, and scientific computing Sponsored Research ANNUAL RESEARCH FUNDING $15 MILLION 3 #12

  14. Oil shale, tar sand, coal research, advanced exploratory process technology, jointly sponsored research. Quarterly technical progress report, April--June 1993

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    Progress made in five areas of research is described briefly. The subtask in oil shale research is on oil shale process studies. For tar sand the subtask reported is on process development. Coal research includes the following subtasks: Coal combustion; integrated coal processing concepts; and solid waste management. Advanced exploratory process technology includes the following: Advanced process concepts; advanced mitigation concepts; oil and gas technology. Jointly sponsored research includes: Organic and inorganic hazardous waste stabilization; CROW{sup TM} field demonstration with Bell Lumber and Pole; development and validation of a standard test method for sequential batch extraction fluid; operation and evaluation of the CO{sup 2} HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid-state NMR analysis of Mesaverde Group, Greater Green River Basin, tight gas sands; characterization of petroleum residua; shallow oil production using horizontal wells with enhanced oil recovery techniques; surface process study for oil recovery using a thermal extraction process;NMR analysis of samples from the ocean drilling program; oil field waste cleanup using tank bottom recovery process; remote chemical sensor development; in situ treatment of manufactured gas plant contaminated soils demonstration program; solid-state NMR analysis of Mowry formation shale from different sedimentary basins; solid-state NMR analysis of naturally and artificially matured kerogens; and development of effective method for the clean-up of natural gas.

  15. Research investigations in oil shale, tar sand, coal research, advanced exploratory process technology, and advanced fuels research: Volume 2 -- Jointly sponsored research program. Final report, October 1986--September 1993

    SciTech Connect (OSTI)

    Smith, V.E.

    1994-09-01T23:59:59.000Z

    Numerous studies have been conducted in five principal areas: oil shale, tar sand, underground coal gasification, advanced process technology, and advanced fuels research. In subsequent years, underground coal gasification was broadened to be coal research, under which several research activities were conducted that related to coal processing. The most significant change occurred in 1989 when the agreement was redefined as a Base Program and a Jointly Sponsored Research Program (JSRP). Investigations were conducted under the Base Program to determine the physical and chemical properties of materials suitable for conversion to liquid and gaseous fuels, to test and evaluate processes and innovative concepts for such conversions, to monitor and determine environmental impacts related to development of commercial-sized operations, and to evaluate methods for mitigation of potential environmental impacts. This report is divided into two volumes: Volume 1 consists of 28 summaries that describe the principal research efforts conducted under the Base Program in five topic areas. Volume 2 describes tasks performed within the JSRP. Research conducted under this agreement has resulted in technology transfer of a variety of energy-related research information. A listing of related publications and presentations is given at the end of each research topic summary. More specific and detailed information is provided in the topical reports referenced in the related publications listings.

  16. Advances

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14Scripting for Advanced Workflows Jack

  17. Screw Placement and Osteoplasty Under Computed Tomographic-Fluoroscopic Guidance in a Case of Advanced Metastatic Destruction of the Iliosacral Joint

    SciTech Connect (OSTI)

    Trumm, Christoph Gregor, E-mail: christoph.trumm@med.lmu.de [University of Munich, Department of Clinical Radiology (Germany); Rubenbauer, Bianca; Piltz, Stefan [University of Munich, Department of Surgery (Germany); Reiser, Maximilian F.; Hoffmann, Ralf-Thorsten [University of Munich, Department of Clinical Radiology (Germany)

    2011-02-15T23:59:59.000Z

    We present a case of combined surgical screw placement and osteoplasty guided by computed tomography-fluoroscopy (CTF) in a 68-year-old man with unilateral osteolytic destruction and a pathological fracture of the iliosacral joint due to a metastasis from renal cell carcinoma. The patient experienced intractable lower back pain that was refractory to analgesia. After transarterial particle and coil embolization of the tumor-feeding vessels in the angiography unit, the procedure was performed under general anesthesia by an interdisciplinary team of interventional radiologists and trauma surgeons. Under intermittent single-shot CTF, two K wires were inserted into the left iliosacral joint from a lateral transiliac approach at the S1 level followed by two self-tapping surgical screws. Continuous CTF was used for monitoring of the subsequent polymethylmethacrylate injection through two vertebroplasty cannulas for further stabilization of the screw threads within the osteolytic sacral ala. Both the screw placement and cement injection were successful, with no complications occurring during or after the procedure. With additional nonsteroidal anti-inflammatory and opioid medication, the patient reported a marked decrease in his lower back pain and was able to move independently again at the 3-month follow-up assessment. In our patient with intolerable back pain due to tumor destruction and consequent pathological fracture of the iliosacral joint, CTF-guided iliosacral screw placement combined with osteoplasty was successful with respect to joint stabilization and a reduction in the need for analgesic therapy.

  18. Joint Genome Institute's Automation Approach and History

    SciTech Connect (OSTI)

    Roberts, Simon

    2006-07-05T23:59:59.000Z

    Department of Energy/Joint Genome Institute (DOE/JGI) collaborates with DOE national laboratories and community users, to advance genome science in support of the DOE missions of clean bio-energy, carbon cycling, and bioremediation.

  19. Jointly Sponsored Research Program

    SciTech Connect (OSTI)

    Everett A. Sondreal; John G. Hendrikson; Thomas A. Erickson

    2009-03-31T23:59:59.000Z

    U.S. Department of Energy (DOE) Cooperative Agreement DE-FC26-98FT40321 funded through the Office of Fossil Energy and administered at the National Energy Technology Laboratory (NETL) supported the performance of a Jointly Sponsored Research Program (JSRP) at the Energy & Environmental Research Center (EERC) with a minimum 50% nonfederal cost share to assist industry in commercializing and effectively applying highly efficient, nonpolluting energy systems that meet the nation's requirements for clean fuels, chemicals, and electricity in the 21st century. The EERC in partnership with its nonfederal partners jointly performed 131 JSRP projects for which the total DOE cost share was $22,716,634 (38%) and the nonfederal share was $36,776,573 (62%). Summaries of these projects are presented in this report for six program areas: (1) resource characterization and waste management, (2) air quality assessment and control, (3) advanced power systems, (4) advanced fuel forms, (5) value-added coproducts, and (6) advanced materials. The work performed under this agreement addressed DOE goals for reductions in CO{sub 2} emissions through efficiency, capture, and sequestration; near-zero emissions from highly efficient coal-fired power plants; environmental control capabilities for SO{sub 2}, NO{sub x}, fine respirable particulate (PM{sub 2.5}), and mercury; alternative transportation fuels including liquid synfuels and hydrogen; and synergistic integration of fossil and renewable resources.

  20. and DDII-9157189 Advanced Inverse Techniques

    E-Print Network [OSTI]

    Zabaras, Nicholas J.

    and Fisher (1984) 5 Phase diagram and constitutional stability Liquidus oc c T T T ref o T=T+mco T' the energy input to the system #12;T = T + mco vf ol f T = T + mco (y,t)c +G = mG Stability condition qol 9 Liquid Two ConditionsTwo Conditions qolol (given) = 0G known flux vf vf I ol T = T + mco ff= v (1-k

  1. Geophysical InversionFacility

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    UBC Geophysical InversionFacility Modelling and Inversion of EMI data collected over magnetic soils of EMI data acquired at sites with magnetic soils 路 Geophysical Proveouts 路 Geonics EM63 Data 路 First model parameters: 路 Location 路 Orientation 路 Polarizabilities 4 #12;UBC Geophysical Inversion Facility

  2. Adhesive joint and composites modeling in SIERRA.

    SciTech Connect (OSTI)

    Ohashi, Yuki; Brown, Arthur A.; Hammerand, Daniel Carl; Adolf, Douglas Brian; Chambers, Robert S.; Foulk, James W., III (.,; )

    2005-11-01T23:59:59.000Z

    Polymers and fiber-reinforced polymer matrix composites play an important role in many Defense Program applications. Recently an advanced nonlinear viscoelastic model for polymers has been developed and incorporated into ADAGIO, Sandia's SIERRA-based quasi-static analysis code. Standard linear elastic shell and continuum models for fiber-reinforced polymer-matrix composites have also been added to ADAGIO. This report details the use of these models for advanced adhesive joint and composites simulations carried out as part of an Advanced Simulation and Computing Advanced Deployment (ASC AD) project. More specifically, the thermo-mechanical response of an adhesive joint when loaded during repeated thermal cycling is simulated, the response of some composite rings under internal pressurization is calculated, and the performance of a composite container subjected to internal pressurization, thermal loading, and distributed mechanical loading is determined. Finally, general comparisons between the continuum and shell element approaches for modeling composites using ADAGIO are given.

  3. Butt Joint Tool Commissioning

    SciTech Connect (OSTI)

    Martovetsky, N N

    2007-12-06T23:59:59.000Z

    ITER Central Solenoid uses butt joints for connecting the pancakes in the CS module. The principles of the butt joining of the CICC were developed by the JAPT during CSMC project. The difference between the CSMC butt joint and the CS butt joint is that the CS butt joint is an in-line joint, while the CSMC is a double joint through a hairpin jumper. The CS butt joint has to carry the hoop load. The straight length of the joint is only 320 mm, and the vacuum chamber around the joint has to have a split in the clamp shell. These requirements are challenging. Fig.1 presents a CSMC joint, and Fig.2 shows a CS butt joint. The butt joint procedure was verified and demonstrated. The tool is capable of achieving all specified parameters. The vacuum in the end was a little higher than the target, which is not critical and readily correctable. We consider, tentatively that the procedure is established. Unexpectedly, we discover significant temperature nonuniformity in the joint cross section, which is not formally a violation of the specs, but is a point of concern. All testing parameters are recorded for QA purposes. We plan to modify the butt joining tool to improve its convenience of operation and provide all features necessary for production of butt joints by qualified personnel.

  4. Stochastic Joint Inversion for Integrated Data Interpretation in Geothermal

    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'tOriginEducationVideo 禄UsageSecretaryVideosSpringoutAPBF-DEC4: ProjectStephen M.P.Stewards

  5. Risk Management Institute Joint Seminar Joint Seminar -

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    Risk Management Institute Joint Seminar Joint Seminar - Risk Management Institute And Department A (S14, #03-10) Speaker Prof. Wang Hefei University of Illinois, Chicago Title Leverage Management Abstract Leverage has often aggravated losses to managed investments. The recent collapses of hedge funds

  6. 2014 Joint Action Workshop

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Joint Action Workshop is an annual event for joint action agencies and their members to meet informally and discuss emerging policy, regulatory, and power supply issues, and other topics...

  7. Sandia National Laboratories: advanced gas-sensor development

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

    gas-sensor development Joint Hire Increases Materials Science Collaboration for Sandia, UNM On September 16, 2014, in Advanced Materials Laboratory, Capabilities, Energy, Energy...

  8. Equivalent Continuum Modeling for Shock Wave Propagation in Jointed Media

    SciTech Connect (OSTI)

    Vorobiev, O; Antoun, T

    2009-12-11T23:59:59.000Z

    This study presents discrete and continuum simulations of shock wave propagating through jointed media. The simulations were performed using the Lagrangian hydrocode GEODYN-L with joints treated explicitly using an advanced contact algorithm. They studied both isotropic and anisotropic joint representations. For an isotropically jointed geologic medium, the results show that the properties of the joints can be combined with the properties of the intact rock to develop an equivalent continuum model suitable for analyzing wave propagation through the jointed medium. For an anisotropically jointed geologic medium, they found it difficult to develop an equivalent continuum (EC) model that matches the response derived from mesoscopic simulation. They also performed simulations of wave propagation through jointed media. Two appraoches are suggested for modeling the rock mass. In one approach, jointed are modeled explicitly in a Lagrangian framework with appropriate contact algorithms used to track motion along the interfaces. In the other approach, the effect of joints is taken into account using a constitutive model derived from mesoscopic simulations.

  9. Pointwise Fourier Inversion: a Wave Equation Approach

    E-Print Network [OSTI]

    Pointwise Fourier Inversion: a Wave Equation Approach Mark A. Pinsky1 Michael E. Taylor2. A general criterion for pointwise Fourier inversion 2. Pointwise Fourier inversion on Rn (n = 3) 3. Fourier inversion on R2 4. Fourier inversion on Rn (general n) 5. Fourier inversion on spheres 6. Fourier inversion

  10. Joining of advanced materials by superplastic deformation

    DOE Patents [OSTI]

    Goretta, Kenneth C. (Downers Grove, IL); Routbort, Jules L. (Hinsdale, IL); Gutierrez-Mora, Felipe (Woodridge, IL)

    2008-08-19T23:59:59.000Z

    A method for utilizing superplastic deformation with or without a novel joint compound that leads to the joining of advanced ceramic materials, intermetallics, and cermets. A joint formed by this approach is as strong as or stronger than the materials joined. The method does not require elaborate surface preparation or application techniques.

  11. Wave Propagation in Jointed Geologic Media

    SciTech Connect (OSTI)

    Antoun, T

    2009-12-17T23:59:59.000Z

    Predictive modeling capabilities for wave propagation in a jointed geologic media remain a modern day scientific frontier. In part this is due to a lack of comprehensive understanding of the complex physical processes associated with the transient response of geologic material, and in part it is due to numerical challenges that prohibit accurate representation of the heterogeneities that influence the material response. Constitutive models whose properties are determined from laboratory experiments on intact samples have been shown to over-predict the free field environment in large scale field experiments. Current methodologies for deriving in situ properties from laboratory measured properties are based on empirical equations derived for static geomechanical applications involving loads of lower intensity and much longer durations than those encountered in applications of interest involving wave propagation. These methodologies are not validated for dynamic applications, and they do not account for anisotropic behavior stemming from direcitonal effects associated with the orientation of joint sets in realistic geologies. Recent advances in modeling capabilities coupled with modern high performance computing platforms enable physics-based simulations of jointed geologic media with unprecedented details, offering a prospect for significant advances in the state of the art. This report provides a brief overview of these modern computational approaches, discusses their advantages and limitations, and attempts to formulate an integrated framework leading to the development of predictive modeling capabilities for wave propagation in jointed and fractured geologic materials.

  12. INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION

    E-Print Network [OSTI]

    Halligan, Daniel

    INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION AND TIE KNOTS Thomas M. A. Fink st. john Introduction 3 1.1 Inverse Protein Folding 3 1.2 Hierarchical Optimisation 5 1.3 Tie Knots 6 1.4 Schematic Organisation 6 1.5 Publications 9 2 Protein Folding, Inverse Protein Folding and Energy Landscapes 10 2

  13. 7, 1043910465, 2007 Mesoscale inversion

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 7, 1043910465, 2007 Mesoscale inversion T. Lauvaux et al. Title Page Abstract Introduction Discussions Mesoscale inversion: first results from the CERES campaign with synthetic data T. Lauvaux 1,2 , M.lauvaux@lsce.ipsl.fr) 10439 #12;ACPD 7, 1043910465, 2007 Mesoscale inversion T. Lauvaux et al. Title Page Abstract

  14. Advanced thyristor valve project

    SciTech Connect (OSTI)

    Damsky, B.L.

    1984-01-01T23:59:59.000Z

    General Electrics's thyristor valve project incorporates the most advanced technologies available. With joint funding from the Electric Power Research Institute, commercial application of the separate light-triggered thyristor is now underway. The cesium vapor lamp source to trigger the light sensitive thyristors will reduce component complexity and cost. A unique thermal management feature relies on forced vaporization cooling with Freon-113, which equals the thermal performance of water without posing insulation reliability problems. 7 figures.

  15. Robust inversion, dimensionality reduction, and randomized sampling

    E-Print Network [OSTI]

    Aleksandr Aravkin

    2011-11-17T23:59:59.000Z

    Nov 17, 2011 ... Keywords: inverse problems, seismic inversion, stochastic optimization, robust estimation. Category 1: Nonlinear Optimization. Category 2:...

  16. Pointwise Fourier Inversion: a Wave Equation Approach

    E-Print Network [OSTI]

    Pointwise Fourier Inversion: a Wave Equation Approach Mark A. Pinsky 1 Michael E. Taylor 2. A general criterion for pointwise Fourier inversion 2. Pointwise Fourier inversion on R n (n = 3) 3. Fourier inversion on R 2 4. Fourier inversion on R n (general n) 5. Fourier inversion on spheres 6. Fourier

  17. High pressure ceramic joint

    DOE Patents [OSTI]

    Ward, Michael E. (Poway, CA); Harkins, Bruce D. (San Diego, CA)

    1993-01-01T23:59:59.000Z

    Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present joint when used with recuperators increases the use of ceramic components which do not react to highly corrosive gases. Thus, the present joint used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present joint is comprised of a first ceramic member, a second ceramic member, a mechanical locking device having a groove defined in one of the first ceramic member and the second ceramic member. The joint and the mechanical locking device is further comprised of a refractory material disposed in the groove and contacting the first ceramic member and the second ceramic member. The present joint mechanically provides a high strength load bearing joint having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures.

  18. High pressure ceramic joint

    DOE Patents [OSTI]

    Ward, M.E.; Harkins, B.D.

    1993-11-30T23:59:59.000Z

    Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present joint when used with recuperators increases the use of ceramic components which do not react to highly corrosive gases. Thus, the present joint used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present joint is comprised of a first ceramic member, a second ceramic member, a mechanical locking device having a groove defined in one of the first ceramic member and the second ceramic member. The joint and the mechanical locking device is further comprised of a refractory material disposed in the groove and contacting the first ceramic member and the second ceramic member. The present joint mechanically provides a high strength load bearing joint having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures. 4 figures.

  19. Center for Inverse Design

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMForms About Batteriesmetal-organic frameworks EFRC 1001 wordInverse

  20. Inverse problem for Bremsstrahlung radiation

    SciTech Connect (OSTI)

    Voss, K.E.; Fisch, N.J.

    1991-10-01T23:59:59.000Z

    For certain predominantly one-dimensional distribution functions, an analytic inversion has been found which yields the velocity distribution of superthermal electrons given their Bremsstrahlung radiation. 5 refs.

  1. Inverse Problems in Transport Theory

    E-Print Network [OSTI]

    The inverse scattering problem for (2.1) is the following: Does S determine ...... J. Voigt, Spectral properties of the neutron transport equation, J. Math. Anal. Appl.

  2. Rolling contact orthopaedic joint design

    E-Print Network [OSTI]

    Slocum, Alexander Henry, Jr

    2013-01-01T23:59:59.000Z

    Arthroplasty, the practice of rebuilding diseased biological joints using engineering materials, is often used to treat severe arthritis of the knee and hip. Prosthetic joints have been created in a "biomimetic" manner to ...

  3. Joint Center for Energy Storage Research

    SciTech Connect (OSTI)

    Eric Isaacs

    2012-11-30T23:59:59.000Z

    The Joint Center for Energy Storage Research (JCESR) is a major public-private research partnership that integrates U.S. Department of Energy national laboratories, major research universities and leading industrial companies to overcome critical scientific challenges and technical barriers, leading to the creation of breakthrough energy storage technologies. JCESR, centered at Argonne National Laboratory, outside of Chicago, consolidates decades of basic research experience that forms the foundation of innovative advanced battery technologies. The partnership has access to some of the world's leading battery researchers as well as scientific research facilities that are needed to develop energy storage materials that will revolutionize the way the United States and the world use energy.

  4. SPIDERS Joint Capability Technology Demonstration Industry Day...

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

    SPIDERS Joint Capability Technology Demonstration Industry Day Presentations SPIDERS Joint Capability Technology Demonstration Industry Day Presentations Presentations from the...

  5. Horizontal Advanced Tensiometer

    DOE Patents [OSTI]

    Hubbell, Joel M.; Sisson, James B.

    2004-06-22T23:59:59.000Z

    An horizontal advanced tensiometer is described that allows the monitoring of the water pressure of soil positions, particularly beneath objects or materials that inhibit the use of previous monitoring wells. The tensiometer includes a porous cup, a pressure transducer (with an attached gasket device), an adaptive chamber, at least one outer guide tube which allows access to the desired horizontal position, a transducer wire, a data logger and preferably an inner guide tube and a specialized joint which provides pressure on the inner guide tube to maintain the seal between the gasket of the transducer and the adaptive chamber.

  6. Laboratory characterization of rock joints

    SciTech Connect (OSTI)

    Hsiung, S.M.; Kana, D.D.; Ahola, M.P.; Chowdhury, A.H.; Ghosh, A. [Southwest Research Inst., San Antonio, TX (United States). Center for Nuclear Waste Regulatory Analyses

    1994-05-01T23:59:59.000Z

    A laboratory characterization of the Apache Leap tuff joints under cyclic pseudostatic and dynamic loads has been undertaken to obtain a better understanding of dynamic joint shear behavior and to generate a complete data set that can be used for validation of existing rock-joint models. Study has indicated that available methods for determining joint roughness coefficient (JRC) significantly underestimate the roughness coefficient of the Apache Leap tuff joints, that will lead to an underestimation of the joint shear strength. The results of the direct shear tests have indicated that both under cyclic pseudostatic and dynamic loadings the joint resistance upon reverse shearing is smaller than that of forward shearing and the joint dilation resulting from forward shearing recovers during reverse shearing. Within the range of variation of shearing velocity used in these tests, the shearing velocity effect on rock-joint behavior seems to be minor, and no noticeable effect on the peak joint shear strength and the joint shear strength for the reverse shearing is observed.

  7. Advances in Inverse Transport Methods and Applications to Neutron Tomography

    E-Print Network [OSTI]

    Wu, Zeyun

    2011-02-22T23:59:59.000Z

    and postulated constraints. We illustrate our approach using some neutron-tomography model problems that are several mean-free paths thick and contain highly scattering materials. In these problems we impose reasonable constraints, similar to those...

  8. DOE-EERC jointly sponsored research program

    SciTech Connect (OSTI)

    Hendrikson, J.G.; Sondreal, E.A.

    1999-09-01T23:59:59.000Z

    U.S. Department of Energy (DOE) Cooperative Agreement DE-FC21-93MC30098 funded through the Office of Fossil Energy and administered at the Federal Energy Technology Center (FETC) supported the performance of a Jointly Sponsored Research Program (JSRP) at the Energy and Environmental Research Center (EERC) with a minimum 50% nonfederal cost share to assist industry in commercializing and effectively applying efficient, nonpolluting energy technologies that can compete effectively in meeting market demands for clean fuels, chemical feedstocks, and electricity in the 21st century. The objective of the JSRP was to advance the deployment of advanced technologies for improving energy efficiency and environmental performance through jointly sponsored research on topics that would not be adequately addressed by the private sector alone. Examples of such topics include the barriers to hot-gas cleaning impeding the deployment of high-efficiency power systems and the search for practical means for sequestering CO{sub 2} generated by fossil fuel combustion. The selection of particular research projects was guided by a combination of DOE priorities and market needs, as provided by the requirement for joint venture funding approved both by DOE and the private sector sponsor. The research addressed many different energy resource and related environmental problems, with emphasis directed toward the EERC's historic lead mission in low-rank coals (LRCs), which represent approximately half of the U.S. coal resources in the conterminous states, much larger potential resources in Alaska, and a major part of the energy base in the former U.S.S.R., East Central Europe, and the Pacific Rim. The Base and JSRP agreements were tailored to the growing awareness of critical environmental issues, including water supply and quality, air toxics (e.g., mercury), fine respirable particulate matter (PM{sub 2.5}), and the goal of zero net CO{sub 2} emissions.

  9. Joint Facilities User Forum

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

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

  10. Metal to ceramic sealed joint

    DOE Patents [OSTI]

    Lasecki, John V. (Livonia, MI); Novak, Robert F. (Farmington Hills, MI); McBride, James R. (Ypsilanti, MI)

    1991-01-01T23:59:59.000Z

    A metal to ceramic sealed joint which can withstand wide variations in temperature and maintain a good seal is provided for use in a device adapted to withstand thermal cycling from about 20 to about 1000 degrees C. The sealed joint includes a metal member, a ceramic member having an end portion, and an active metal braze forming a joint to seal the metal member to the ceramic member. The joint is positioned remote from the end portion of the ceramic member to avoid stresses at the ends or edges of the ceramic member. The sealed joint is particularly suited for use to form sealed metal to ceramic joints in a thermoelectric generator such as a sodium heat engine where a solid ceramic electrolyte is joined to metal parts in the system.

  11. Metal to ceramic sealed joint

    DOE Patents [OSTI]

    Lasecki, J.V.; Novak, R.F.; McBride, J.R.

    1991-08-27T23:59:59.000Z

    A metal to ceramic sealed joint which can withstand wide variations in temperature and maintain a good seal is provided for use in a device adapted to withstand thermal cycling from about 20 to about 1000 degrees C. The sealed joint includes a metal member, a ceramic member having an end portion, and an active metal braze forming a joint to seal the metal member to the ceramic member. The joint is positioned remote from the end portion of the ceramic member to avoid stresses at the ends or edges of the ceramic member. The sealed joint is particularly suited for use to form sealed metal to ceramic joints in a thermoelectric generator such as a sodium heat engine where a solid ceramic electrolyte is joined to metal parts in the system. 11 figures.

  12. Joint Center for Artificial Photosynthesis

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

    The Joint Center for Artificial Photosynthesis (JCAP) is the nation's largest research program dedicated to the development of an artificial solar-fuel generation technology....

  13. Biofluid lubrication for artificial joints

    E-Print Network [OSTI]

    Pendelton, Alice Mae

    2009-05-15T23:59:59.000Z

    This research investigated biofluid lubrication related to artificial joints using tribological and rheological approaches. Biofluids studied here represent two categories of fluids, base fluids and nanostructured biofluids. ...

  14. JOINT ELECTRICAL & COMPUTER ENGINEERING AND

    E-Print Network [OSTI]

    JOINT ELECTRICAL & COMPUTER ENGINEERING AND APPLIED MATH SEMINAR "Imaging Science Meets Compressed, and electrical engineering. It surprisingly predicts that high-dimensional signals, which allow a sparse

  15. Joint Center for Artificial Photosynthesis

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

    JCAP North JCAP Headquarters Joint Center for Artificial Photosynthesis California Institute of Technology Jorgensen Laboratory, Mail Code 132-80 1200 East California Boulevard...

  16. Inversion of the star transform

    E-Print Network [OSTI]

    Fan Zhao; John C. Schotland; Vadim A. Markel

    2014-05-06T23:59:59.000Z

    We define the star transform as a generalization of the broken ray transform introduced by us in previous work. The advantages of using the star transform include the possibility to reconstruct the absorption and the scattering coefficients of the medium separately and simultaneously (from the same data) and the possibility to utilize scattered radiation which, in the case of the conventional X-ray tomography, is discarded. In this paper, we derive the star transform from physical principles, discuss its mathematical properties and analyze numerical stability of inversion. In particular, it is shown that stable inversion of the star transform can be obtained only for configurations involving odd number of rays. Several computationally-efficient inversion algorithms are derived and tested numerically.

  17. Improved characterization through joint hydrogeophysicalinversion: Examples of three different approaches

    SciTech Connect (OSTI)

    Linde, Niklas; Chen, Jinsong; Kowalsky, Michael; Finsterle,Stefan; Rubin, Yoram; Hubbard, Susan

    2004-07-01T23:59:59.000Z

    With the increasing application of geophysical methods to hydrogeological problems, approaches for obtaining quantitative estimates of hydrogeological parameters using geophysical data are in great demand. A common approach to hydrogeological parameter estimation using geophysical and hydrogeological data is to first invert the geophysical data using a geophysical inversion procedure, and subsequently use the resulting estimates together with available hydrogeological information to estimate a hydrogeological parameter field. This approach does not allow us to constrain the geophysical inversion by hydrogeological data and prior information, and thus decreases our ability to make valid estimates of the hydrogeological parameter field. Furthermore, it is difficult to quantify the uncertainty in the corresponding estimates and to validate the assumptions made. They are developing alternative approaches that allow for the joint inversion of all available hydrological and geophysical data. In this presentation, they consider three studies and draw various conclusions, such as on the potential benefits of estimating the petrophysical relationships within the inversion framework and of constraining the geophysical estimates on geophysical, as well as hydrogeological data.

  18. Development of an Advanced Hydraulic Fracture Mapping System

    SciTech Connect (OSTI)

    Norm Warpinski; Steve Wolhart; Larry Griffin; Eric Davis

    2007-01-31T23:59:59.000Z

    The project to develop an advanced hydraulic fracture mapping system consisted of both hardware and analysis components in an effort to build, field, and analyze combined data from tiltmeter and microseismic arrays. The hardware sections of the project included: (1) the building of new tiltmeter housings with feedthroughs for use in conjunction with a microseismic array, (2) the development of a means to use separate telemetry systems for the tilt and microseismic arrays, and (3) the selection and fabrication of an accelerometer sensor system to improve signal-to-noise ratios. The analysis sections of the project included a joint inversion for analysis and interpretation of combined tiltmeter and microseismic data and improved methods for extracting slippage planes and other reservoir information from the microseisms. In addition, testing was performed at various steps in the process to assess the data quality and problems/issues that arose during various parts of the project. A prototype array was successfully tested and a full array is now being fabricated for industrial use.

  19. Joint Information CenterJoint Information Center Deepwater Horizon Response

    E-Print Network [OSTI]

    when they see the birds that have been impacted by the Deepwa- ter Horizon/BP oil spill. While and it is determined to be within the Deepwater Horizon Oil Spill Re- sponse area, a wildlife response team is notifiedJoint Information CenterJoint Information Center Deepwater Horizon Response Incident Command Post

  20. Fractional Inversion in Krylov Space

    E-Print Network [OSTI]

    B. Bunk

    1998-05-28T23:59:59.000Z

    The fractional inverse $M^{-\\gamma}$ (real $\\gamma >0$) of a matrix $M$ is expanded in a series of Gegenbauer polynomials. If the spectrum of $M$ is confined to an ellipse not including the origin, convergence is exponential, with the same rate as for Chebyshev inversion. The approximants can be improved recursively and lead to an iterative solver for $M^\\gamma x = b$ in Krylov space. In case of $\\gamma = 1/2$, the expansion is in terms of Legendre polynomials, and rigorous bounds for the truncation error are derived.

  1. The second skin approach : skin strain field analysis and mechanical counter pressure prototyping for advanced spacesuit design

    E-Print Network [OSTI]

    Bethke, Kristen (Kristen Ann)

    2005-01-01T23:59:59.000Z

    The primary aim of this thesis is to advance the theory of advanced locomotion mechanical counter pressure (MCP) spacesuits by studying the changes in the human body shape during joint motion. Two experiments take advantage ...

  2. Foreign Fishery Developments Japanese Joint

    E-Print Network [OSTI]

    -215. In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nationsForeign Fishery Developments Japanese Joint Fishing Ventures Stabilize Activity Trawling Skipjack tuna harvest Whaling Other harvests Aquaculture Refrigeration operations Fish processing Average $1

  3. Joint Seminar Risk Management Institute &

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    Joint Seminar Risk Management Institute & Department of Decision Sciences Details of Seminar Date and statistics is leading to a greatly broadened theory of regression which draws on tools of convex analysis with factor analysis in finance and economics. Risk Management Institute Joint Seminar #12;

  4. Method of forming a joint

    DOE Patents [OSTI]

    Butt, Darryl Paul; Cutler, Raymond Ashton; Rynders, Steven Walton; Carolan, Michael Francis

    2006-08-22T23:59:59.000Z

    A method of joining at least two sintered bodies to form a composite structure, including providing a first multicomponent metallic oxide having a perovskitic or fluorite crystal structure; providing a second sintered body including a second multicomponent metallic oxide having a crystal structure of the same type as the first; and providing at an interface a joint material containing at least one metal oxide containing at least one metal identically contained in at least one of the first and second multicomponent metallic oxides. The joint material is free of cations of Si, Ge, Sn, Pb, P and Te and has a melting point below the sintering temperatures of both sintered bodies. The joint material is heated to a temperature above the melting point of the metal oxide(s) and below the sintering temperatures of the sintered bodies to form the joint. Structures containing such joints are also disclosed.

  5. Spatially-Variant Tikhonov Regularization for Double-Difference Waveform Inversion

    SciTech Connect (OSTI)

    Lin, Youzuo [Los Alamos National Laboratory; Huang, Lianjie [Los Alamos National Laboratory; Zhang, Zhigang [Los Alamos National Laboratory

    2011-01-01T23:59:59.000Z

    Double-difference waveform inversion is a potential tool for quantitative monitoring for geologic carbon storage. It jointly inverts time-lapse seismic data for changes in reservoir geophysical properties. Due to the ill-posedness of waveform inversion, it is a great challenge to obtain reservoir changes accurately and efficiently, particularly when using time-lapse seismic reflection data. Regularization techniques can be utilized to address the issue of ill-posedness. The regularization parameter controls the smoothness of inversion results. A constant regularization parameter is normally used in waveform inversion, and an optimal regularization parameter has to be selected. The resulting inversion results are a trade off among regions with different smoothness or noise levels; therefore the images are either over regularized in some regions while under regularized in the others. In this paper, we employ a spatially-variant parameter in the Tikhonov regularization scheme used in double-difference waveform tomography to improve the inversion accuracy and robustness. We compare the results obtained using a spatially-variant parameter with those obtained using a constant regularization parameter and those produced without any regularization. We observe that, utilizing a spatially-variant regularization scheme, the target regions are well reconstructed while the noise is reduced in the other regions. We show that the spatially-variant regularization scheme provides the flexibility to regularize local regions based on the a priori information without increasing computational costs and the computer memory requirement.

  6. Joint Fuel Cell Technologies and Advanced Manufacturing Webinar

    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(FactDepartment ofLetter Report: I11IG002RTC3 | ofproposalof Energy

  7. Joint Fuel Cell Technologies and Advanced Manufacturing Webinar |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas 禄 MethaneJohnson Controls EnergyJoin theFuel Cell

  8. Joint Capability Technology Demonstration (JCTD) Industry Day...

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

    Joint Capability Technology Demonstration (JCTD) Industry Day Agenda Joint Capability Technology Demonstration (JCTD) Industry Day Agenda Agenda outlines the activities of the 2014...

  9. Advanced drilling systems study.

    SciTech Connect (OSTI)

    Pierce, Kenneth G.; Livesay, Billy Joe; Finger, John Travis (Livesay Consultants, Encintas, CA)

    1996-05-01T23:59:59.000Z

    This report documents the results of a study of advanced drilling concepts conducted jointly for the Natural Gas Technology Branch and the Geothermal Division of the U.S. Department of Energy. A number of alternative rock cutting concepts and drilling systems are examined. The systems cover the range from current technology, through ongoing efforts in drilling research, to highly speculative concepts. Cutting mechanisms that induce stress mechanically, hydraulically, and thermally are included. All functions necessary to drill and case a well are considered. Capital and operating costs are estimated and performance requirements, based on comparisons of the costs for alternative systems to conventional drilling technology, are developed. A number of problems common to several alternatives and to current technology are identified and discussed.

  10. Advanced servo manipulator

    DOE Patents [OSTI]

    Holt, W.E.; Kuban, D.P.; Martin, H.L.

    1988-10-25T23:59:59.000Z

    An advanced servo manipulator has modular parts. Modular motor members drive individual input gears to control shoulder roll, shoulder pitch, elbow pitch, wrist yaw, wrist pitch, wrist roll, and tong spacing. The modules include a support member, a shoulder module for controlling shoulder roll, and a sleeve module attached to the shoulder module in fixed relation thereto. The shoulder roll sleeve module has an inner cylindrical member rotatable relative to the outer cylindrical member, and upon which a gear pod assembly is mounted. A plurality of shafts are driven by the gears, which are in turn driven by individual motor modules to transmit rotary power to control elbow pitch as well as to provide four different rotary shafts across the bendable elbow joint to supply rotary motive power to a wrist member and tong member. 41 figs.

  11. Joint probabilities and quantum cognition

    SciTech Connect (OSTI)

    Acacio de Barros, J. [Liberal Studies, 1600 Holloway Ave., San Francisco State University, San Francisco, CA 94132 (United States)

    2012-12-18T23:59:59.000Z

    In this paper we discuss the existence of joint probability distributions for quantumlike response computations in the brain. We do so by focusing on a contextual neural-oscillator model shown to reproduce the main features of behavioral stimulus-response theory. We then exhibit a simple example of contextual random variables not having a joint probability distribution, and describe how such variables can be obtained from neural oscillators, but not from a quantum observable algebra.

  12. Inverse Temperature-Dependent Pathway of Cellulose Decrystallization...

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

    Inverse Temperature-Dependent Pathway of Cellulose Decrystallization in Trifluoroacetic Acid. Inverse Temperature-Dependent Pathway of Cellulose Decrystallization in...

  13. Bayes Nets Representation: joint distribution and conditional

    E-Print Network [OSTI]

    Mitchell, Tom

    Bayes Nets Representation: joint distribution and conditional independence Yi Zhang 10-701, Machine joint distribution of BNs Infer C. I. from factored joint distributions D-separation (motivation) 2 structure All about the joint distribution of variables ! Conditional independence assumptions are useful

  14. Center for Inverse Design: About the Center for Inverse Design

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMForms About Batteriesmetal-organic frameworks EFRC 1001 wordInverse

  15. A feasibility study for experimentally determining dynamic force distribution in a lap joint.

    SciTech Connect (OSTI)

    Mayes, Randall Lee

    2013-11-01T23:59:59.000Z

    Developing constitutive models of the physics in mechanical joints is currently stymied by inability to measure forces and displacements within the joint. The current state of the art estimates whole joint stiffness and energy loss per cycle from external measured force input and one or two acceleration responses. To validate constitutive models beyond this state requires a measurement of the distributed forces and displacements at the joint interface. Unfortunately, introducing measurement devices at the interface completely disrupts the desired physics. A feasibility study is presented for a non-intrusive method of solving for the interface dynamic forces from an inverse problem using full field measured responses. The responses come from the viewable surface of a beam. The noise levels associated with digital image correlation and continuous scanning laser Doppler velocimetry are evaluated from typical beam experiments. Two inverse problems are simulated. One utilizes the extended Sum of Weighted Accelerations Technique (SWAT). The second is a new approach dubbed the method of truncated orthogonal forces. These methods are much more robust if the contact patch geometry is well identified. Various approaches to identifying the contact patch are investigated, including ion marker tracking, Prussian blue and ultrasonic measurements. A typical experiment is conceived for a beam which has a lap joint at one end with a single bolt connecting it to another identical beam. In a virtual test using the beam finite element analysis, it appears that the SWAT inverse method requires evaluation of too many coefficients to adequately identify the force distribution to be viable. However, the method of truncated orthogonal forces appears viable with current digital image correlation (and probably other) imaging techniques.

  16. Center for Inverse Design: Modality 1 - Inverse Band Structure

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

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

  17. A study of generalized inverses

    E-Print Network [OSTI]

    McKinney, Nancy Lee

    1973-01-01T23:59:59.000Z

    APPENDIX A A FORTRAN IV COMPUTER PROGRAM FOR CALCULATING THE GENERALIZED INVERSE OF A MATRIX. VITA PAGE 17 17 23 32 35 38 38 46 53 53 53 59 65 68 71 92 LIST OF FIGURES FIGURE 1 Least-Square Solution. . 2 Specific Least... are as follows. We extend the definition of a diagonaL matrix to all mxn matrices. We call an mxn matrix D a diagonal matrix of d. = 0 ij for i P j, i = l, . . . , m and j = l, . . . , n. Thus the only entries in D that may be nonzero are the d, i = I...

  18. High dimensional linear inverse modelling

    E-Print Network [OSTI]

    Cooper, Fenwick C

    2015-01-01T23:59:59.000Z

    We introduce and demonstrate two linear inverse modelling methods for systems of stochastic ODE's with accuracy that is independent of the dimensionality (number of elements) of the state vector representing the system in question. Truncation of the state space is not required. Instead we rely on the principle that perturbations decay with distance or the fact that for many systems, the state of each data point is only determined at an instant by itself and its neighbours. We further show that all necessary calculations, as well as numerical integration of the resulting linear stochastic system, require computational time and memory proportional to the dimensionality of the state vector.

  19. Bayesian reconstruction of the cosmological large-scale structure: methodology, inverse algorithms and numerical optimization

    E-Print Network [OSTI]

    F. S. Kitaura; T. A. Ensslin

    2009-11-06T23:59:59.000Z

    We address the inverse problem of cosmic large-scale structure reconstruction from a Bayesian perspective. For a linear data model, a number of known and novel reconstruction schemes, which differ in terms of the underlying signal prior, data likelihood, and numerical inverse extra-regularization schemes are derived and classified. The Bayesian methodology presented in this paper tries to unify and extend the following methods: Wiener-filtering, Tikhonov regularization, Ridge regression, Maximum Entropy, and inverse regularization techniques. The inverse techniques considered here are the asymptotic regularization, the Jacobi, Steepest Descent, Newton-Raphson, Landweber-Fridman, and both linear and non-linear Krylov methods based on Fletcher-Reeves, Polak-Ribiere, and Hestenes-Stiefel Conjugate Gradients. The structures of the up-to-date highest-performing algorithms are presented, based on an operator scheme, which permits one to exploit the power of fast Fourier transforms. Using such an implementation of the generalized Wiener-filter in the novel ARGO-software package, the different numerical schemes are benchmarked with 1-, 2-, and 3-dimensional problems including structured white and Poissonian noise, data windowing and blurring effects. A novel numerical Krylov scheme is shown to be superior in terms of performance and fidelity. These fast inverse methods ultimately will enable the application of sampling techniques to explore complex joint posterior distributions. We outline how the space of the dark-matter density field, the peculiar velocity field, and the power spectrum can jointly be investigated by a Gibbs-sampling process. Such a method can be applied for the redshift distortions correction of the observed galaxies and for time-reversal reconstructions of the initial density field.

  20. Inverse operator representations of quantum phase

    E-Print Network [OSTI]

    G. M. Saxena

    2008-03-14T23:59:59.000Z

    We define quantum phase in terms of inverses of annihilation and creation operators. We show that like Susskind - Glogower phase operators, the measured phase operators and the unitary phase operators can be defined in terms of the inverse operators. However, for the unitary phase operator the Hilbert space includes the negative energy states. The quantum phase in inverse operator representation may find the applications in the field of quantum optics particularly in the squeezed states.

  1. Joint measurability through Naimark's theorem

    E-Print Network [OSTI]

    Roberto Beneduci

    2014-04-05T23:59:59.000Z

    We use Naimark's dilation theorem in order to characterize the joint measurability of two POVMs. Then, we analyze the joint measurability of two commutative POVMs $F_1$ and $F_2$ which are the smearing of two self-adjoint operators $A_1$ and $A_2$ respectively. We prove that the compatibility of $F_1$ and $F_2$ is connected to the existence of two compatible self-adjoint dilations $A_1^+$ and $A_2^+$ of $A_1$ and $A_2$ respectively. As a corollary we prove that each couple of self-adjoint operators can be dilated to a couple of compatible self-adjoint operators. Next, we analyze the joint measurability of the unsharp position and momentum observables and show that it provides a master example of the scheme we propose. Finally, we give a sufficient condition for the compatibility of two effects.

  2. Linear conic optimization for inverse optimal control

    E-Print Network [OSTI]

    Edouard Pauwels

    2014-11-05T23:59:59.000Z

    Nov 5, 2014 ... Abstract: We address the inverse problem of Lagrangian identification based on trajectories in the context of nonlinear optimal control.

  3. INVERSE SCATTERING OF SEISMIC DATA WITH THE ...

    E-Print Network [OSTI]

    1910-61-22T23:59:59.000Z

    We discuss the inverse scattering of seismic reflection data making use of the generalized Radon transform. Through an extension, the relevant transform attains...

  4. Inverse hydrochemical models of aqueous extracts tests

    E-Print Network [OSTI]

    Zheng, L.

    2010-01-01T23:59:59.000Z

    Samper, J. , Yang, C. , Montenegro, L. , 2003. Users ManualSamper, J. , V醶quez, A. , Montenegro, L. , 2005. Inverse563. Samper, J. , Zhang, G. , Montenegro, L. , 2006. Coupled

  5. Fast methods for inverse wave scattering problems

    E-Print Network [OSTI]

    Lee, Jung Hoon, Ph. D. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    Inverse wave scattering problems arise in many applications including computerized/diffraction tomography, seismology, diffraction/holographic grating design, object identification from radar singals, and semiconductor ...

  6. A typology of Bantu subject inversion

    E-Print Network [OSTI]

    Marten, Lutz; van der Wal, Jenneke

    2015-01-01T23:59:59.000Z

    generalisations are drawn. For example, languages with instrument inversion or with patient inversion always have locative inversion (but not vice versa), or if a language has at least one inversion construction, it always has at least either default agreement... ): (36) Se-tulo seo ba-sadi ba-se-rek-ile-ng kajeno [Sesotho] 7-chair REL7 2-woman SM2-OM7-buy-PRF-REL today 慣he chair which the women bought today 厭 (37) Mbatya dza-va-ka-son-er-a va-kadzi [Shona] 10.clothes REL10-SM2...

  7. Jointly Sponsored Research Program Energy Related Research

    SciTech Connect (OSTI)

    Western Research Institute

    2009-03-31T23:59:59.000Z

    Cooperative Agreement, DE-FC26-98FT40323, Jointly Sponsored Research (JSR) Program at Western Research Institute (WRI) began in 1998. Over the course of the Program, a total of seventy-seven tasks were proposed utilizing a total of $23,202,579 in USDOE funds. Against this funding, cosponsors committed $26,557,649 in private funds to produce a program valued at $49,760,228. The goal of the Jointly Sponsored Research Program was to develop or assist in the development of innovative technology solutions that will: (1) Increase the production of United States energy resources - coal, natural gas, oil, and renewable energy resources; (2) Enhance the competitiveness of United States energy technologies in international markets and assist in technology transfer; (3) Reduce the nation's dependence on foreign energy supplies and strengthen both the United States and regional economies; and (4) Minimize environmental impacts of energy production and utilization. Under the JSR Program, energy-related tasks emphasized enhanced oil recovery, heavy oil upgrading and characterization, coal beneficiation and upgrading, coal combustion systems development including oxy-combustion, emissions monitoring and abatement, coal gasification technologies including gas clean-up and conditioning, hydrogen and liquid fuels production, coal-bed methane recovery, and the development of technologies for the utilization of renewable energy resources. Environmental-related activities emphasized cleaning contaminated soils and waters, processing of oily wastes, mitigating acid mine drainage, and demonstrating uses for solid waste from clean coal technologies, and other advanced coal-based systems. Technology enhancement activities included resource characterization studies, development of improved methods, monitors and sensors. In general the goals of the tasks proposed were to enhance competitiveness of U.S. technology, increase production of domestic resources, and reduce environmental impacts associated with energy production and utilization. This report summarizes the accomplishments of the JSR Program.

  8. Joint Technical Operations Team | National Nuclear Security Administra...

    National Nuclear Security Administration (NNSA)

    Render Safe Joint Technical Operations Team Joint Technical Operations Team JTOT Logo NNSA's Joint Technical Operations Team (JTOT) provides specialized technical...

  9. Summarizing and Mining Inverse Distributions on Data Streams via Dynamic Inverse Sampling

    E-Print Network [OSTI]

    Cormode, Graham

    Summarizing and Mining Inverse Distributions on Data Streams via Dynamic Inverse Sampling Graham data stream management systems approach this problem by sum- marizing and mining the distributions for summariz- ing and mining inverse distributions of data streams: they rely on a novel technique to maintain

  10. State Technologies Advancement Collaborative

    SciTech Connect (OSTI)

    David S. Terry

    2012-01-30T23:59:59.000Z

    The U. S. Department of Energy (DOE), National Association of State Energy Officials (NASEO), and Association of State Energy Research and Technology Transfer Institutions (ASERTTI) signed an intergovernmental agreement on November 14, 2002, that allowed states and territories and the Federal Government to better collaborate on energy research, development, demonstration and deployment (RDD&D) projects. The agreement established the State Technologies Advancement Collaborative (STAC) which allowed the states and DOE to move RDD&D forward using an innovative competitive project selection and funding process. A cooperative agreement between DOE and NASEO served as the contracting instrument for this innovative federal-state partnership obligating funds from DOE's Office of Energy Efficiency and Renewable Energy and Office of Fossil Energy to plan, fund, and implement RDD&D projects that were consistent with the common priorities of the states and DOE. DOE's Golden Field Office provided Federal oversight and guidance for the STAC cooperative agreement. The STAC program was built on the foundation of prior Federal-State efforts to collaborate on and engage in joint planning for RDD&D. Although STAC builds on existing, successful programs, it is important to note that it was not intended to replace other successful joint DOE/State initiatives such as the State Energy Program or EERE Special Projects. Overall the STAC process was used to fund, through three competitive solicitations, 35 successful multi-state research, development, deployment, and demonstration projects with an overall average non-federal cost share of 43%. Twenty-two states were awarded at least one prime contract, and organizations in all 50 states and some territories were involved as subcontractors in at least one STAC project. Projects were funded in seven program areas: (1) Building Technologies, (2) Industrial Technologies, (3) Transportation Technologies, (4) Distributed Energy Resources, (5) Hydrogen Technology Learning Centers, (6) Fossil Energy, and (7) Rebuild America.

  11. Offered jointly with International Business

    E-Print Network [OSTI]

    Offered jointly with Master in International Business #12;.02 Welcome to Barcelona Welcome to UPF Pompeu Fabra (UPF), in the very heart of Barcelona. UPF is a public institution established in 1990, and is integrated into the urban fabric of the city, contributing to and participating in its dynamism. The UPF has

  12. 2D Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data...

    Open Energy Info (EERE)

    Authors F. A. M. Santos, A. R. A. Afonso and A. Dupis Published Journal Journal of Geophysics and Engineering, 20070101 DOI Not Provided Check for DOI availability: http:...

  13. Joint inversion of crosshole radar and seismic traveltimes acquired at the South Oyster Bacterial Transport Site

    E-Print Network [OSTI]

    Linde, Niklas

    2008-01-01T23:59:59.000Z

    37 (10), 2431-2456. Linde, N. , A. Binley, A. Tryggvason, L.doi:10.1029/2006WR005131. Linde, N. , S. Finsterle, and S.Tryggvason, A. , and N. Linde, 2006, Local earthquake (LE)

  14. Joint flow-seismic inversion for characterizing fractured reservoirs: theoretical approach and numerical modeling

    E-Print Network [OSTI]

    Kang, Peter K.

    2013-01-01T23:59:59.000Z

    Traditionally, seismic interpretation is performed without any account of the flow behavior. Here, we present a methodology to characterize fractured geologic media by integrating flow and seismic data. The key element of ...

  15. Joint Inversion of Production and Temperature Data Illuminates Vertical Permeability Distribution in Deep Reservoirs

    E-Print Network [OSTI]

    Zhang, Zhishuai

    2012-10-19T23:59:59.000Z

    of Characterization Results Conditioned on Various Observations ......................................................................................... 29 Figure 3-5 MAP Characterization Result with Downhole Temperature Sensors .. 30 Figure 3-6 Production... the lower layer of the reservoir has a higher temperature. Thus, production temperature carries information about hydraulic properties distribution with depth in the reservoir. In addition, the usage of modern monitor technology like permanent downhole...

  16. Time-lapse Joint Inversion of Geophysical Data and its Applications...

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

    at Pagosa Springs (CO) * New method of time lapse geophysics * New method to monitor fracking Summary 16 | US DOE Geothermal Office eere.energy.gov Timeline: Budget: Project...

  17. Joint inversion of electrical and seismic data for Fracture char. and

    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(FactDepartment ofLetter Report: I11IG002RTC3 | ofproposalofDepartmentandon

  18. 2D Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 Wind ProjectsourceInformationColorado School20090: SWRCB

  19. Time-lapse Joint Inversion of Geophysical Data and its Applications to

    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'tOriginEducationVideoStrategic|Industrial Sector,Department ThirdCosts | DepartmentTime-Off

  20. Positive and inverse isotope effect on superconductivity

    E-Print Network [OSTI]

    Tian De Cao

    2009-09-04T23:59:59.000Z

    This article improves the BCS theory to include the inverse isotope effect on superconductivity. An affective model can be deduced from the model including electron-phonon interactions, and the phonon-induced attraction is simply and clearly explained on the electron Green function. The focus of this work is on how the positive or inverse isotope effect occurs in superconductors.

  1. Reservoir Characterization Using Intelligent Seismic Inversion

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    reservoir performance. Field Development #12;- Issues about the data and problems regarding data analysis characterization studies. - Inverse modeling of reservoir properties from the seismic data is known as seismic inversion. SEISMIC LOGS #12;1. Does a relationship exist between seismic data and reservoir characteristics

  2. JOINT PROGRAM IN TRANSPORTATION UNIVERSITY OF TORONTO

    E-Print Network [OSTI]

    Toronto, University of

    JOINT PROGRAM IN TRANSPORTATION UNIVERSITY OF TORONTO 2001 TRANSPORTATION TOMORROW SURVEY of Transportation, Ontario Additions in 1996 Regional Municipalities of Niagara, Waterloo Counties of Peterborough not to participate) #12;JOINT PROGRAM IN TRANSPORTATION UNIVERSITY OF TORONTO 2001 TRANSPORTATION TOMORROW SURVEY

  3. Advanced Analysis: Skeleton notes 1. Fourier Theory

    E-Print Network [OSTI]

    Davies, Christopher

    Advanced Analysis: Skeleton notes 1. Fourier Theory The Fourier series of a function f() on [-, ] is - anein , where an = an(f) = 1 2 - f()e-in d. The Fourier transform of a function f(x) on R is the function ^f() = 1 2 - f(x)e-ix dx, and the Fourier inversion formula is f(x) = - f()eix d. One circle

  4. Joint Genome Institute's Automation Approach and History

    E-Print Network [OSTI]

    Roberts, Simon

    2006-01-01T23:59:59.000Z

    Joint Genome Institute抯 Automation Approach and Historythroughput environment; automation does not necessarilyissues 揑slands of Automation modular instruments with

  5. The Joint Essential Numerical Range of operators

    E-Print Network [OSTI]

    Li, Chi-Kwong

    The Joint Essential Numerical Range of operators: Convexity and Related Results Chi-Kwong Li Classification 47A12, 47A13, 47A55. Keywords Joint essential numerical range, self-adjoint operator, Hilbert the joint behavior of several operators A1, . . . , Am. One may see [1, 5, 12, 14, 15, 16, 19, 23, 28, 31

  6. JOINT DEGREE PROGRAMS DEFINITION AND POLICY

    E-Print Network [OSTI]

    Omiecinski, Curtis

    1 JOINT DEGREE PROGRAMS DEFINITION AND POLICY: Within the fields of medicine and law, dual training for such complementary training can be demonstrated, the creation of a formal "Joint" degree program in which students or MD) offered at Penn State may be warranted. Such Joint degree programs enhance the educational

  7. JOINTLY HYPONORMAL PAIRS OF COMMUTING SUBNORMAL OPERATORS NEED NOT BE JOINTLY SUBNORMAL

    E-Print Network [OSTI]

    Curto, Ra煤l

    JOINTLY HYPONORMAL PAIRS OF COMMUTING SUBNORMAL OPERATORS NEED NOT BE JOINTLY SUBNORMAL RA麓UL E operators, jointly hyponormal but not admitting commuting normal extensions. Each such family can be used] := ST - TS. We say that an n-tuple T = (T1, 路 路 路 , Tn) of operators on H is (jointly) hyponormal

  8. READY FOR TODAY. PREPARING FOR TOMORROW. The Joint Operating Environment is intended to inform joint concept

    E-Print Network [OSTI]

    Sainudiin, Raazesh

    READY FOR TODAY. PREPARING FOR TOMORROW. #12;The Joint Operating Environment is intended to inform. Inquiries about the Joint Operating Environment should be directed to USJFCOM Public Affairs, 1562 Mitscher R O N M E N T ( J O E ) #12;While U.S. Joint Forces Command's Joint Operating Environment (JOE

  9. Advanced Combustion

    SciTech Connect (OSTI)

    Holcomb, Gordon R. [NETL

    2013-03-11T23:59:59.000Z

    The activity reported in this presentation is to provide the mechanical and physical property information needed to allow rational design, development and/or choice of alloys, manufacturing approaches, and environmental exposure and component life models to enable oxy-fuel combustion boilers to operate at Ultra-Supercritical (up to 650{degrees}C & between 22-30 MPa) and/or Advanced Ultra-Supercritical conditions (760{degrees}C & 35 MPa).

  10. Jointly Sponsored Research Program. Final report

    SciTech Connect (OSTI)

    NONE

    1997-07-01T23:59:59.000Z

    The Jointly Sponsored Research Program (JSRP) is a US Department of Energy (DOE) program funded through the Office of Fossil Energy and administered at the Morgantown Energy Technology Center. Under this program, which has been in place since Fiscal Year 1990, DOE makes approximately $2.5 million available each year to the Energy and Environmental Research Center (EERC) to fund projects that are of current interest to industry but which still involve significant risk, thus requiring some government contribution to offset the risk if the research is to move forward. The program guidelines require that at least 50% of the project funds originate from nonfederal sources. Projects funded under the JSRP often originate under a complementary base program, which funds higher-risk projects. The projects funded in Fiscal Year 1996 addressed a wide range of Fossil Energy interests, including hot-gas filters for advanced power systems; development of cleaner, more efficient processing technologies; development of environmental control technologies; development of environmental remediation and reuse technologies; development of improved analytical techniques; and development of a beneficiation technique to broaden the use of high-sulfur coal. Descriptions and status for each of the projects funded during the past fiscal year are included in Section A of this document, Statement of Technical Progress.

  11. Metal-ceramic joint assembly

    DOE Patents [OSTI]

    Li, Jian (New Milford, CT)

    2002-01-01T23:59:59.000Z

    A metal-ceramic joint assembly in which a brazing alloy is situated between metallic and ceramic members. The metallic member is either an aluminum-containing stainless steel, a high chromium-content ferritic stainless steel or an iron nickel alloy with a corrosion protection coating. The brazing alloy, in turn, is either an Au-based or Ni-based alloy with a brazing temperature in the range of 9500 to 1200.degree. C.

  12. Joint strength in RCS frames

    E-Print Network [OSTI]

    Kirby, Cynthia Dawn

    1998-01-01T23:59:59.000Z

    SETUP 3. 4. 1 Loading System. 3. 4. 2 Deformation Measurements . . . . Vt X111 . 1 . I . 1 . 2 . 3 . . . . 3 . 3 . 4 . 5 . . . 6 . 6 . 6 . 7 . 9 . 11 . 13 . 13 . 13 . 13 . 15 . 15 . 15 . 16 . 17 . 19 . 19 . 20 Page 3. 4... Vertical Bearing. 4. 6. 4 Beam Failure Mechanism. Page 4. 6. 5 Column Failure Mechanism 4. 6. 6 Predicted Failure Mechanisms 4. 7 JOINT STRENGTH PREDICTIONS (DISCONTINUOUS BEAM DIRECTION). 5. RESPONSE 5. 1 INTRODUCTION . . 5. 2. GENERAL BEHAVIOR 5...

  13. acoustic impedance inversion: Topics by E-print Network

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

    Topic Index 1 ACOUSTIC IMPEDANCE INVERSION FOR STATIC AND DYNAMIC CHARACTERIZATION OF A CO2 EOR PROJECT, Fossil Fuels Websites Summary: ACOUSTIC IMPEDANCE INVERSION FOR STATIC...

  14. Local Uniqueness for the Fixed Energy Fixed Angle Inverse Problem ...

    E-Print Network [OSTI]

    Abstract. We prove local uniqueness for the inverse problem in obstacle scattering at a fixed energy and fixed incident angle. We consider the inverse problem of...

  15. Prospects for joint gravitational wave and short gamma-ray burst observations

    E-Print Network [OSTI]

    J. Clark; H. Evans; S. Fairhurst; I. W. Harry; E. Macdonald; D. Macleod; P. J. Sutton; A. R. Williamson

    2014-09-29T23:59:59.000Z

    We present a detailed evaluation of the expected rate of joint gravitational-wave and short gamma-ray burst (GRB) observations over the coming years. We begin by evaluating the improvement in distance sensitivity of the gravitational wave search that arises from using the GRB observation to restrict the time and sky location of the source. We argue that this gives a 25% increase in sensitivity when compared to an all-sky, all-time search, corresponding to more than doubling the number of detectable gravitational wave signals associated with GRBs. Using this, we present the expected rate of joint observations with the advanced LIGO and Virgo instruments, taking into account the expected evolution of the gravitational wave detector network. We show that in the early advanced gravitational wave detector observing runs, from 2015-2017, there is only a small chance of a joint observation. However, as the detectors approach their design sensitivities, there is a good chance of joint observations provided wide field GRB satellites, such as Fermi and the Interplanetary Network, continue operation. The rate will also depend critically upon the nature of the progenitor, with neutron star--black hole systems observable to greater distances than double neutron star systems. The relative rate of binary mergers and GRBs will depend upon the jet opening angle of GRBs. Consequently, joint observations, as well as accurate measurement of both the GRB rate and binary merger rates will allow for an improved estimation of the opening angle of GRBs.

  16. Advanced Combustion

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 Power and TransmissionAdolphusAdvanced Energy

  17. Advanced Calculus I (Math 309) Fall 2005 Lecture Notes

    E-Print Network [OSTI]

    Bohner, Martin

    ); (iii) invertible if f is both one-to-one and onto, and then f-1 : Y X is called the inverse function the composite function of f and g. Proposition 1.11. A function f : X Y is invertible iff there existsAdvanced Calculus I (Math 309) Fall 2005 Lecture Notes Martin Bohner Version from December 4, 2005

  18. Self-Inverse Interleavers for Turbo Codes

    E-Print Network [OSTI]

    Sakzad, Amin; Panario, Daniel; Eshghi, Nasim

    2010-01-01T23:59:59.000Z

    In this work we introduce and study a set of new interleavers based on permutation polynomials and functions with known inverses over a finite field $\\mathbb{F}_q$ for using in turbo code structures. We use Monomial, Dickson, M\\"{o}bius and R\\'edei functions in order to get new interleavers. In addition we employ Skolem sequences in order to find new interleavers with known cycle structure. As a byproduct we give an exact formula for the inverse of every R\\'edei function. The cycle structure of R\\'edei functions are also investigated. Finally, self-inverse versions of permutation functions are used to construct interleavers. These interleavers are their own de-interleavers and are useful for turbo coding and turbo decoding. Experiments carried out for self-inverse interleavers constructed using these kind of permutation polynomials and functions show excellent agreement with our theoretical results.

  19. Inverse problem for incremental synchrotron radiation

    SciTech Connect (OSTI)

    Fisch, N.J.

    1987-06-01T23:59:59.000Z

    Significantly more information is available from synchrotron emission from a plasma when the plasma is purposefully disturbed. An inverse problem, to deduce properties of the disturbance given time-dependent radiation data, is proposed. The fast time response of radiation detectors is fully exploited by this approach. A special case of interest, perpendicular observation of a steady-state plasma, lends itself to an analytic inversion.

  20. A fluorophosphate-based inverse Keggin structure

    SciTech Connect (OSTI)

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

    2012-07-17T23:59:59.000Z

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

  1. Partitioned Waveform Inversion Applied to Eurasia and Northern Africa

    SciTech Connect (OSTI)

    bedle, H; Matzel, E; Flanagan, M

    2006-07-27T23:59:59.000Z

    This report summarizes the data analysis achieved during Heather Bedle's eleven-week Technical Scholar internship at Lawrence Livermore National Labs during the early summer 2006. The work completed during this internship resulted in constraints on the crustal and upper mantle S-velocity structure in Northern Africa, the Mediterranean, the Middle East, and Europe, through the fitting of regional waveform data. This data extends current raypath coverage and will be included in a joint inversion along with data from surface wave group velocity measurements, S and P teleseismic arrival time data, and receiver function data to create an improved velocity model of the upper mantle in this region. The tectonic structure of the North African/Mediterranean/Europe/Middle Eastern study region is extremely heterogeneous. This region consists of, among others, stable cratons and platforms such as the West Africa Craton, and Baltica in Northern Europe; oceanic subduction zones throughout the Mediterranean Sea where the African and Eurasian plate collide; regions of continental collision as the Arabian Plate moves northward into the Turkish Plate; and rifting in the Red Sea, separating the Arabian and Nubian shields. With such diverse tectonic structures, many of the waveforms were difficult to fit. This is not unexpected as the waveforms are fit using an averaged structure. In many cases the raypaths encounter several tectonic features, complicating the waveform, and making it hard for the software to converge on a 1D average structure. Overall, the quality of the waveform data was average, with roughly 30% of the waveforms being discarded due to excessive noise that interfered with the frequency ranges of interest. An inversion for the 3D S-velocity structure of this region was also performed following the methodology of Partitioned Waveform Inversion (Nolet, 1990; Van der Lee and Nolet, 1997). The addition of the newly fit waveforms drastically extends the range of the model. The model now extends as far east in Africa to cover Chad and Niger, and reaches south to cover Zambia. The model is also stretched eastward to cover the eastern half of India, and northward to cover the southern portion of Scandinavia.

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

    E-Print Network [OSTI]

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

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

  3. Joint Center for Artificial Photosynthesis

    SciTech Connect (OSTI)

    Koval, Carl; Lee, Kenny; Houle, Frances; Lewis, Nate

    2013-12-10T23:59:59.000Z

    The Joint Center for Artificial Photosynthesis (JCAP) is the nation's largest research program dedicated to the development of an artificial solar-fuel generation technology. Established in 2010 as a U.S. Department of Energy (DOE) Energy Innovation Hub, JCAP aims to find a cost-effective method to produce fuels using only sunlight, water, and carbon dioxide as inputs. JCAP brings together more than 140 top scientists and researchers from the California Institute of Technology and its lead partner, Berkeley Lab, along with collaborators from the SLAC National Accelerator Laboratory, and the University of California campuses at Irvine and San Diego.

  4. Joint Center for Artificial Photosynthesis

    ScienceCinema (OSTI)

    Koval, Carl; Lee, Kenny; Houle, Frances; Lewis, Nate

    2013-12-19T23:59:59.000Z

    The Joint Center for Artificial Photosynthesis (JCAP) is the nation's largest research program dedicated to the development of an artificial solar-fuel generation technology. Established in 2010 as a U.S. Department of Energy (DOE) Energy Innovation Hub, JCAP aims to find a cost-effective method to produce fuels using only sunlight, water, and carbon dioxide as inputs. JCAP brings together more than 140 top scientists and researchers from the California Institute of Technology and its lead partner, Berkeley Lab, along with collaborators from the SLAC National Accelerator Laboratory, and the University of California campuses at Irvine and San Diego.

  5. Joint DOE-Rosatom Statement

    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(FactDepartment ofLetter Report: I11IG002RTC3 | ofproposalof Energy usJoint

  6. Joint Institutes | 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)Integrated Codes |Is Your Home as Ready for(SC)Joint Genome Institute (JGI)

  7. Joint Announcement | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas 禄 MethaneJohnson Controls EnergyJoin the EnergyJoin usJoint

  8. Joint Outreach Task Group Calendar: September 2013

    Broader source: Energy.gov [DOE]

    Joint Outreach Task Group (JOTG)has created a monthly calendar of community events to facilitate interagency and community involvement in these events. September 2013

  9. JIBS | Joint Institute for Biological Sciences | ORNL

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

    joint institute is located close to ORNL's Laboratory for Comparative and Functional Genomics, other biomolecular sciences research laboratories, and the Environmental Sciences...

  10. Joint Inference for Competing Risks Data

    E-Print Network [OSTI]

    Li, Gang; Yang, Qing

    2015-01-01T23:59:59.000Z

    N. (1978), 揟he analysis of failure times in the presence ofall failure types and groups. For regression analysis offailure types. Section 3 develops joint regression analysis

  11. Analysis on the Inverse problem Statistical analysis of the inverse problem

    E-Print Network [OSTI]

    regression This is a non-linear regression model. Assumption : we have equal variance measurement errors and trigonometric forms. #12;Analysis on the Inverse problem Introduction Non-linear regression This is a non-linear on the Inverse problem Introduction Linear and non-linear regression Examples : Linear model y = 0 + 1x + 2x2 y

  12. Advanced Emissions Control Development Program

    SciTech Connect (OSTI)

    A.P.Evans; K.E. Redinger; M.J. Holmes

    1998-04-01T23:59:59.000Z

    The objective of the Advanced Emissions Control Development Program (AECDP) is to develop practical, cost-effective strategies for reducing the emissions of air toxics from coal-fired boilers. Ideally, the project aim is to effectively control air toxic emissions through the use of conventional flue gas cleanup equipment such as electrostatic precipitators (ESPS), fabric filters (baghouse), and wet flue gas desulfurization. Development work to date has concentrated on the capture of mercury, other trace metals, fine particulate and hydrogen chloride. Following the construction and evaluation of a representative air toxics test facility in Phase I, Phase II focused on the evaluation of mercury and several other air toxics emissions. The AECDP is jointly funded by the United States Department of Energy's Federal Energy Technology Center (DOE), the Ohio Coal Development Office within the Ohio Department of Development (oCDO), and Babcock& Wilcox-a McDermott company (B&W).

  13. Inversions in astronomy and the SOLA method

    E-Print Network [OSTI]

    F. P. Pijpers

    1995-06-14T23:59:59.000Z

    This paper was presented at the Institute for Mathematics and its Applications workshop "Inverse problems in wave propagation" and will appear in the series IMA volumes (Springer). A brief overview of applications of inversions within astronomy is presented and also an inventory of techniques commonly in use. Most of this paper is focussed on the method of Subtractive Optimally Localized Averages (SOLA) which is an adaptation of the Backus and Gilbert method. This method was originally developed for use in helioseismology where the Backus and Gilbert method is computationally too slow. Since then it has also been applied to the problem of reverberation mapping of active galactic nuclei and the differences between this inverse problem and the ones of helioseismology are also discussed.

  14. Error handling strategies in multiphase inverse modeling

    SciTech Connect (OSTI)

    Finsterle, S.; Zhang, Y.

    2010-12-01T23:59:59.000Z

    Parameter estimation by inverse modeling involves the repeated evaluation of a function of residuals. These residuals represent both errors in the model and errors in the data. In practical applications of inverse modeling of multiphase flow and transport, the error structure of the final residuals often significantly deviates from the statistical assumptions that underlie standard maximum likelihood estimation using the least-squares method. Large random or systematic errors are likely to lead to convergence problems, biased parameter estimates, misleading uncertainty measures, or poor predictive capabilities of the calibrated model. The multiphase inverse modeling code iTOUGH2 supports strategies that identify and mitigate the impact of systematic or non-normal error structures. We discuss these approaches and provide an overview of the error handling features implemented in iTOUGH2.

  15. EFFECT OF JOINT AUDITOR PAIR ON CONSERVATISM

    E-Print Network [OSTI]

    Paris-Sud XI, Universit茅 de

    1 EFFECT OF JOINT AUDITOR PAIR ON CONSERVATISM: EVIDENCE FROM IMPAIRMENT TESTS Gerald Lobo's (1997) measure of conservatism, are more likely to book impairments when operating performance is low requiring joint audit to improve audit quality. Mots cl茅s : Co-commissariat 颅 Reconnaissance ad茅quate des

  16. Joint Fuel Cell Bus Workshop Summary Report

    E-Print Network [OSTI]

    Joint Fuel Cell Bus Workshop Summary Report Prepared for: U.S. Department of Energy (DOE/EERE) U was jointly sponsored by the Energy Efficiency and Renewable Energy office of the DOE and the Federal Transit the entire range of operating conditions and cycles 路 Cost (manufacturing, capital, operations

  17. ARC Discovery (Joint PhD)

    E-Print Network [OSTI]

    Wang, Yan

    PhD) (Cotutelle) 2010(MQRES) 2.252009 10% 2010 1.8 1.32012 www.international.mq.edu.au/researchCRICOS Code 00002J " 2014 200 (COREs) " Jim Piper 20091600 (MQRES) (Cotutelle) (Joint PhD) MICHELLEWILSON 20102651 104(Cotutelle) (Joint PhD) #12; (COREs) (Ancient Cultures) -- (Animal Behaviour

  18. Human enhancement and the future of work Report from a joint workshop hosted by the Academy of Medical

    E-Print Network [OSTI]

    Cambridge, University of

    Human enhancement and the future of work Report from a joint workshop hosted by the Academy of Medical Sciences, the British Academy, the Royal Academy of Engineering and the Royal Society. November 2012 #12;Academy of Medical Sciences The independent Academy of Medical Sciences promotes advances

  19. Geothermal: Advanced Search

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

    Advanced Search Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related Links You...

  20. United States and France Sign Joint Statement on Civil Liability...

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

    and France Sign Joint Statement on Civil Liability for Nuclear Damage United States and France Sign Joint Statement on Civil Liability for Nuclear Damage Joint Statement Signed.pdf...

  1. STATUS OF HIGH FLUX ISOTOPE REACTOR IRRADIATION OF SILICON CARBIDE/SILICON CARBIDE JOINTS

    SciTech Connect (OSTI)

    Katoh, Yutai [ORNL; Koyanagi, Takaaki [ORNL; Kiggans, Jim [ORNL; Cetiner, Nesrin [ORNL; McDuffee, Joel [ORNL

    2014-09-01T23:59:59.000Z

    Development of silicon carbide (SiC) joints that retain adequate structural and functional properties in the anticipated service conditions is a critical milestone toward establishment of advanced SiC composite technology for the accident-tolerant light water reactor (LWR) fuels and core structures. Neutron irradiation is among the most critical factors that define the harsh service condition of LWR fuel during the normal operation. The overarching goal of the present joining and irradiation studies is to establish technologies for joining SiC-based materials for use as the LWR fuel cladding. The purpose of this work is to fabricate SiC joint specimens, characterize those joints in an unirradiated condition, and prepare rabbit capsules for neutron irradiation study on the fabricated specimens in the High Flux Isotope Reactor (HFIR). Torsional shear test specimens of chemically vapor-deposited SiC were prepared by seven different joining methods either at Oak Ridge National Laboratory or by industrial partners. The joint test specimens were characterized for shear strength and microstructures in an unirradiated condition. Rabbit irradiation capsules were designed and fabricated for neutron irradiation of these joint specimens at an LWR-relevant temperature. These rabbit capsules, already started irradiation in HFIR, are scheduled to complete irradiation to an LWR-relevant dose level in early 2015.

  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. 2, 413445, 2008 Surface inversion on

    E-Print Network [OSTI]

    Boyer, Edmond

    variations in surface flow velocity and topography along a flow line on ice streams and ice sheets of spatial variations in basal topography and basal slipperiness on surface data can be accurately separatedTCD 2, 413445, 2008 Surface inversion on ice streams G. H. Gudmundsson and M. Raymond Title Page

  4. Wavelet Decomposition Approaches to Statistical Inverse Problems

    E-Print Network [OSTI]

    Abramovich, Felix

    Wavelet Decomposition Approaches to Statistical Inverse Problems BY F. ABRAMOVICH Department alternative is the wavelet颅vaguelette decomposition method, based on the expansion of the unknown in wavelet series. In the vaguelette颅wavelet decomposition method proposed here, the observed data are expanded

  5. INVERSION FOR APPLIED GEOPHYSICS: A TUTORIAL

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    INVERSION FOR APPLIED GEOPHYSICS: A TUTORIAL Douglas W. Oldenburg* and Yaoguo Li** * UBC-Geophysical, V6T 1Z4 ** Department of Geophysics, Colorado School of Mines, Golden, Colorado, 80401 INTRODUCTION Throughout this book there are numerous cases where geophysics has been used to help solve practical

  6. Inverse Problems for Fractional Diffusion Equations

    E-Print Network [OSTI]

    Zuo, Lihua

    2013-06-21T23:59:59.000Z

    and preliminaries in Section 1 and 2, in the third section we consider our first inverse boundary problem. This is where an unknown boundary condition is to be determined from overposed data in a time- fractional diffusion equation. Based upon the fundamental...

  7. Focusing Inversion of Electroencephalography and Magnetoencephalography Data

    E-Print Network [OSTI]

    Utah, University of

    or magnetic #12;eld recorded outside of the head. In this paper, we present a new minimization technique to the inverse bioelectric and biomagnetic #12;eld problems are functional brain studies and clinical diagnosis of neural disease, such as epilepsy. In functional brain studies, sensory signals stimulate the subject

  8. Approximating Human Reaching Volumes Using Inverse Kinematics

    E-Print Network [OSTI]

    Rodr韌uez, Inmaculada

    of reach: standing reach, which is useful in computer animation where virtual humans have to interact. Introduction Virtual Humans are a valuable medium for gaining knowledge and understanding about the human bodyApproximating Human Reaching Volumes Using Inverse Kinematics I. Rodr韌ueza , M. Peinadoa , R

  9. Global optimization in inverse problem of scatterometry

    E-Print Network [OSTI]

    Paris-Sud XI, Universit茅 de

    Global optimization in inverse problem of scatterometry Lekbir Afraites1,2 Jerome Hazard3 Patrick as a parametric optimization problem using the Least Square criterion. In this work, a design procedure for global robust optimization is developed using Kriging and global optimization approaches. Robustness

  10. Inverse Modeling for Coastal Seawater Intrusion

    E-Print Network [OSTI]

    Polit猫cnica de Catalunya, Universitat

    , USA) #12;INTRODUCTION 路 Inverse modeling 颅 standard tool for groundwater modeling 颅 uncommonD3D.1 颅 2D and 3D finite-element code for simulating variable-density groundwater problems 路 UCODE 3 and given time (i.e. at one observation location) on one of the parameters in the groundwater model

  11. Joint Statement on the Global Nuclear Energy Partnership and...

    Office of Environmental Management (EM)

    Joint Statement on the Global Nuclear Energy Partnership and Nuclear Energy Cooperation Joint Statement on the Global Nuclear Energy Partnership and Nuclear Energy Cooperation...

  12. acute prosthetic joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 110 Joint Degrees & Promotion towards European Students Computer...

  13. alloy lap joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 70 Joint Degrees & Promotion towards European Students Computer...

  14. acute neuropathic joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 36 Joint Degrees & Promotion towards European Students Computer...

  15. anatomical joint angles: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 110 Joint Degrees & Promotion towards European Students Computer...

  16. atlanto-axial joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 13 Joint Degrees & Promotion towards European Students Computer...

  17. aa6056 butt joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 55 Joint Degrees & Promotion towards European Students Computer...

  18. acute acromioclavicular joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 20 Joint Degrees & Promotion towards European Students Computer...

  19. assessing rheumatic joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 46 Joint Degrees & Promotion towards European Students Computer...

  20. artificial joint replacements: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 152 Joint Degrees & Promotion towards European Students Computer...

  1. adhesive lap joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 106 Joint Degrees & Promotion towards European Students Computer...

  2. agu joint assembly: Topics by E-print Network

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

    total chip-eluted DNA. unknown authors 465 READY FOR TODAY. PREPARING FOR TOMORROW. The Joint Operating Environment is intended to inform joint concept Mathematics Websites...

  3. ankle joint mobility: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 214 Joint Degrees & Promotion towards European Students Computer...

  4. adhesive bonded joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 153 Joint Degrees & Promotion towards European Students Computer...

  5. acromioclavicular joint reconstruction: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 68 Joint Degrees & Promotion towards European Students Computer...

  6. alloy butt joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 63 Joint Degrees & Promotion towards European Students Computer...

  7. arthritis wrist joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 115 Joint Degrees & Promotion towards European Students Computer...

  8. aluminium alloy joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 107 Joint Degrees & Promotion towards European Students Computer...

  9. acromioclavicular joint cyst: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 32 Joint Degrees & Promotion towards European Students Computer...

  10. arthritis metacarpophalangeal joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 79 Joint Degrees & Promotion towards European Students Computer...

  11. acromioclavicular joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 14 Joint Degrees & Promotion towards European Students Computer...

  12. animals jointly organized: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 109 Joint Degrees & Promotion towards European Students Computer...

  13. anticorrosive field joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 48 Joint Degrees & Promotion towards European Students Computer...

  14. atopic eczema joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 38 Joint Degrees & Promotion towards European Students Computer...

  15. ankle joint position: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 205 Joint Degrees & Promotion towards European Students Computer...

  16. adhesively bonded joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 153 Joint Degrees & Promotion towards European Students Computer...

  17. articular process joints: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 146 Joint Degrees & Promotion towards European Students Computer...

  18. atlanto-occipital joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 15 Joint Degrees & Promotion towards European Students Computer...

  19. Joint Institute for Neutron Sciences | ornl.gov

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

    Joint Institute for Neutron Sciences SHARE Joint Institute for Neutron Sciences JINS is located on Chestnut Ridge within the 80-acre SNS site, part of Oak Ridge National...

  20. New Report Describes Joint Opportunities for Natural Gas and...

    Office of Environmental Management (EM)

    New Report Describes Joint Opportunities for Natural Gas and Hydrogen Fuel Cell Vehicle Markets New Report Describes Joint Opportunities for Natural Gas and Hydrogen Fuel Cell...

  1. Sandia National Laboratories: New Report Describes Joint Opportunities...

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

    bilitiesCapabilitiesNew Report Describes Joint Opportunities for Natural Gas and Hydrogen Fuel-Cell Vehicle Markets New Report Describes Joint Opportunities for Natural Gas and...

  2. Phosphine oxide derivatives as hosts for blue phosphors: A joint...

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

    oxide derivatives as hosts for blue phosphors: A joint theoretical and experimental study of their electronic Phosphine oxide derivatives as hosts for blue phosphors: A joint...

  3. OMB and CEQ Joint Memorandum on Environmental Collaboration and...

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

    Joint Memorandum on Environmental Collaboration and Conflict Resolution This Office of Management and Budget (OMB) and Council on Environmental Quality (CEQ) joint memorandum...

  4. National Report Joint Convention on the Safety of Spent Fuel...

    Office of Environmental Management (EM)

    National Report Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management National Report Joint Convention on the Safety of Spent...

  5. application driven joint: Topics by E-print Network

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

    This applica- tion is particularly challenging due to its demand for multiple concurrent media Smith, Jonathan M. 60 JOINT SEMINAR FINAL REPORT Mathematics Websites Summary: JOINT...

  6. Sealed joint structure for electrochemical device

    DOE Patents [OSTI]

    Tucker, Michael C; Jacobson, Craig P; De Jonghe, Lutgard C; Visco, Steven J

    2013-05-21T23:59:59.000Z

    Several members make up a joint in a high-temperature electrochemical device, wherein the various members perform different functions. The joint is useful for joining multiple cells (generally tubular modules) of an electrochemical device to produce a multi-cell segment-in-series stack for a solid oxide fuel cell, for instance. The joint includes sections that bond the joining members to each other; one or more seal sections that provide gas-tightness, and sections providing electrical connection and/or electrical insulation between the various joining members. A suitable joint configuration for an electrochemical device has a metal joint housing, a first porous electrode, a second porous electrode, separated from the first porous electrode by a solid electrolyte, and an insulating member disposed between the metal joint housing and the electrolyte and second electrode. One or more brazes structurally and electrically connects the first electrode to the metal joint housing and forms a gas tight seal between the first electrode and the second electrode.

  7. INSPECTION OF FUSION JOINTS IN PLASTIC PIPE

    SciTech Connect (OSTI)

    Alex Savitski; Connie Reichert; John Coffey

    2005-07-13T23:59:59.000Z

    The standard method of joining plastic pipe in the field is the butt fusion process. As in any pipeline application, joint quality greatly affects overall operational safety of the system. Currently no simple, reliable, cost effective method of assessing the quality of fusion joints in the field exists. Visual examination and pressure testing are current non-destructive approaches, which do not provide any assurance about the long-term pipeline performance. This project will develop, demonstrate, and validate an in-situ non-destructive inspection method for butt fusion joints in gas distribution plastic pipelines. The inspection system will include a laser based image-recognition system that will automatically generate and interpret digital images of pipe joints and assign them a pass/fail rating, which eliminates operator bias in evaluating joint quality. A Weld Zone Inspection Method (WZIM) is being developed in which local heat is applied to the joint region to relax the residual stresses formed by the original joining operation and reveal the surface condition of the joint. In cases where the joint is not formed under optimal conditions, and the intermolecular forces between contacting surfaces are not strong enough, the relaxation of macromolecules in the surface layer causes the material to pull back, revealing a fusion line. If the joint is sound, the bond line image does not develop. To establish initial feasibility of the approach, welds were performed under standard and nonstandard conditions. These welds were subjected to the WZIM and tensile testing. There appears to be a direct correlation between the WZIM and tensile testing results. Although WZIM appears to be more sensitive than tensile testing can verify, the approach appears valid.

  8. INSPECTION OF FUSION JOINTS IN PLASTIC PIPE

    SciTech Connect (OSTI)

    Alex Savitski; Connie Reichert; John Coffey

    2004-07-13T23:59:59.000Z

    The standard method of joining plastic pipe in the field is the butt fusion process. As in any pipeline application, joint quality greatly affects overall operational safety of the system. Currently no simple, reliable, cost effective method of assessing the quality of fusion joints in the field exists. Visual examination and pressure testing are current non-destructive approaches, which do not provide any assurance about the long-term pipeline performance. This project will develop, demonstrate, and validate an in-situ non-destructive inspection method for butt fusion joints in gas distribution plastic pipelines. The inspection system will include a laser based image-recognition system that will automatically generate and interpret digital images of pipe joints and assign them a pass/fail rating, which eliminates operator bias in evaluating joint quality. A Weld Zone Inspection Method (WZIM) is being developed in which local heat is applied to the joint region to relax the residual stresses formed by the original joining operation and reveal the surface condition of the joint. In cases where the joint is not formed under optimal conditions, and the intermolecular forces between contacting surfaces are not strong enough, the relaxation of macromolecules in the surface layer causes the material to pull back, revealing a fusion line. If the joint is sound, the bond line image does not develop. To establish initial feasibility of the approach, welds were performed under standard and non-standard conditions. These welds were subjected to the WZIM and tensile testing. There appears to be a direct correlation between the WZIM and tensile testing results. Although WZIM appears to be more sensitive than tensile testing can verify, the approach appears valid.

  9. Inspection of Fusion Joints in Plastic Pipe

    SciTech Connect (OSTI)

    Connie Reichert

    2005-09-01T23:59:59.000Z

    The standard method of joining plastic pipe in the field is the butt fusion process. As in any pipeline application, joint quality greatly affects overall operational safety of the system. Currently no simple, reliable, cost-effective method exists for assessing the quality of fusion joints in the field. Visual examination and pressure testing are current nondestructive approaches, which do not provide any assurance about the long-term pipeline performance. This project developed, demonstrated, and validated an in-situ nondestructive inspection method for butt fusion joints in gas distribution plastic pipelines. The inspection system includes a laser-based image-recognition system that automatically generates and interprets digital images of pipe joints and assigns them a pass/fail rating, which eliminates operator bias in evaluating joint quality. An EWI-patented process, the Weld Zone Inspection Method (WZIM) was developed in which local heat is applied to the joint region to relax the residual stresses formed by the original joining operation, which reveals the surface condition of the joint. In cases where the joint is not formed under optimal conditions, and the intermolecular forces between contacting surfaces are not strong enough, the relaxation of macromolecules in the surface layer causes the material to pull back, revealing a fusion line. If the joint is sound, the bond line image does not develop. To establish initial feasibility of the approach, welds were performed under standard and nonstandard conditions. These welds were subjected to the WZIM and two destructive forms of testing: short-term tensile testing and long-term creep rupture testing. There appears to be a direct correlation between the WZIM and the destructive testing results. Although WZIM appears to be more sensitive than destructive testing can verify, the approach appears valid.

  10. Rao-Blackwellised Interacting Markov Chain Monte Carlo for Electromagnetic Scattering Inversion

    E-Print Network [OSTI]

    Giraud, Fran鏾is

    2012-01-01T23:59:59.000Z

    The following electromagnetism (EM) inverse problem is addressed. It consists in estimating local radioelectric properties of materials recovering an object from the global EM scattering measurement, at various incidences and wave frequencies. This large scale ill-posed inverse problem is explored by an intensive exploitation of an efficient 2D Maxwell solver, distributed on High Performance Computing (HPC) machines. Applied to a large training data set, a statistical analysis reduces the problem to a simpler probabilistic metamodel, on which Bayesian inference can be performed. Considering the radioelectric properties as a dynamic stochastic process, evolving in function of the frequency, it is shown how advanced Markov Chain Monte Carlo methods, called Sequential Monte Carlo (SMC) or interacting particles, can provide estimations of the EM properties of each material, and their associated uncertainties.

  11. Inverse modeling of partitioning interwell tracer tests: A streamline approach

    E-Print Network [OSTI]

    Datta-Gupta, Akhil

    computations, inverse modeling 1. Introduction [2] It is recognized that the presence of nonaqueous phaseInverse modeling of partitioning interwell tracer tests: A streamline approach Akhil Datta orders of magnitude. INDEX TERMS: 1832 Hydrology: Groundwater transport; 1829 Hydrology: Groundwater

  12. Quantitative Monitoring for Enhanced Geothermal Systems Using Double-Difference Waveform Inversion with Spatially-Variant Total-Variation Regularization

    SciTech Connect (OSTI)

    Lin, Youzuo [Los Alamos National Laboratory; Huang, Lianjie [Los Alamos National Laboratory; Zhang, Zhigang [Los Alamos National Laboratory

    2011-01-01T23:59:59.000Z

    Double-difference waveform inversion is a promising tool for quantitative monitoring for enhanced geothermal systems (EGS). The method uses time-lapse seismic data to jointly inverts for reservoir changes. Due to the ill-posedness of waveform inversion, it is a great challenge to obtain reservoir changes accurately and efficiently, particularly when using timelapse seismic reflection data. To improve reconstruction, we develop a spatially-variant total-variation regularization scheme into double-difference waveform inversion to improve the inversion accuracy and robustness. The new regularization scheme employs different regularization parameters in different regions of the model to obtain an optimal regularization in each area. We compare the results obtained using a spatially-variant parameter with those obtained using a constant regularization parameter. Utilizing a spatially-variant regularization scheme, the target monitoring regions are well reconstructed and the image noise is significantly reduced outside the monitoring regions. Our numerical examples demonstrate that the spatially-variant total-variation regularization scheme provides the flexibility to regularize local regions based on the a priori spatial information without increasing computational costs and the computer memory requirement.

  13. Subject Inversion in French. The Limits of Information Structure

    E-Print Network [OSTI]

    Boyer, Edmond

    Marie Lit. the book that has written Marie b. Presentative inversion [pres-inv]: Alors entra un soldat

  14. Fractal Inverse Problem: Approximation Formulation and Differential Methods

    E-Print Network [OSTI]

    Gu茅rin, Eric

    Fractal Inverse Problem: Approximation Formulation and Differential Methods 麓Eric Gu麓erin1 Introduction 1.1 Fractal Inverse Problem The fractal inverse problem is an important research area with a great number of potential application fields. It consists in finding a fractal model or code that generates

  15. Parallel matrix inversion for the revised simplex method -A study

    E-Print Network [OSTI]

    Hall, Julian

    Parallel matrix inversion for the revised simplex method - A study Julian Hall School of Mathematics University of Edinburgh June 15th 2006 Parallel matrix inversion for the revised simplex method - a study #12;Overview Nature of the challenge of matrix inversion for the revised simplex method #12

  16. Parallel matrix inversion for the revised simplex method -A study

    E-Print Network [OSTI]

    Hall, Julian

    Parallel matrix inversion for the revised simplex method - A study Julian Hall School of Mathematics University of Edinburgh June 15th 2006 Parallel matrix inversion for the revised simplex method - a study #12;Overview Nature of the challenge of matrix inversion for the revised simplex method

  17. Experimental Observation of Femtosecond Electron Beam Microbunching by Inverse

    E-Print Network [OSTI]

    Brookhaven National Laboratory

    Experimental Observation of Femtosecond Electron Beam Micro璪unching by Inverse Free璄lectron璍aser scale of 2.5 痬 by an Inverse Free Electron Laser (IFEL) accelerator was observed. The optimum Cerenkov accelerator (ICA)[5], inverse free electron laser (IFEL) [6] and plasma laser accelerators [7, 8

  18. LITHOLOGY-FLUID INVERSION FROM PRESTACK SEISMIC DATA

    E-Print Network [OSTI]

    Eidsvik, Jo

    LITHOLOGY-FLUID INVERSION FROM PRESTACK SEISMIC DATA MARIT ULVMOEN Department of Mathematical of the study is on lithology-fluid inversion from prestack seismic data in a 3D reservoir. The inversion relates the lithology-fluid classes to elastic variables and the seismic data, and it follows the lines

  19. OXFORD UNIVERSITY JOINT COMMITTEE FOR MATHEMATICS AND

    E-Print Network [OSTI]

    OXFORD UNIVERSITY JOINT COMMITTEE FOR MATHEMATICS AND PHILOSOPHY October 2014 Programme: for Mathematics, Statistics and Operational Research, and for Philosophy. http 路 to provide, within the supportive and stimulating environment of the collegiate university, a course

  20. Safety Monitor Joint Working Group (JWG) Tour

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

    4 th Meeting of the Joint Working Group of the U.S.-Japan Coordinating Committee of Fusion Energy on Safety in Inter-Institutional Collaborations (U.S.-Japan Safety Monitoring...

  1. Joint Actinide Shock Physics Experimental Research - JASPER

    ScienceCinema (OSTI)

    None

    2015-01-09T23:59:59.000Z

    Commonly known as JASPER the Joint Actinide Shock Physics Experimental Research facility is a two stage light gas gun used to study the behavior of plutonium and other materials under high pressures, temperatures, and strain rates.

  2. Joint microseismic event location with uncertain velocity

    E-Print Network [OSTI]

    Poliannikov, Oleg V.

    2013-01-01T23:59:59.000Z

    We study the problem of the joint location of seismic events using an array of receivers. We show that locating multiple seismic events simultaneously is advantageous compared to the more traditional approaches of locating ...

  3. 2015 Joint Capability Technology Demonstration Industry Day

    Broader source: Energy.gov [DOE]

    The Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Joint Capability Technology Demonstration (JCTD) Phase 3 Industry Day will be on August 27, 2015, from 8 a.m. to noon at the Hawaii Convention Center.

  4. Joint Actinide Shock Physics Experimental Research - JASPER

    SciTech Connect (OSTI)

    None

    2014-10-31T23:59:59.000Z

    Commonly known as JASPER the Joint Actinide Shock Physics Experimental Research facility is a two stage light gas gun used to study the behavior of plutonium and other materials under high pressures, temperatures, and strain rates.

  5. SPIDERS Joint Capability Technology Demonstration Industry Day

    Broader source: Energy.gov [DOE]

    The Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Joint Capability Technology Demonstration (JCTD) Industry Day occurred April 22, 2014, from 8 a.m. to 1:30 p.m. at Fort Carson, Colorado.

  6. CHARACTERIZATION OF DAMPING IN BOLTED LAP JOINTS

    SciTech Connect (OSTI)

    C. MALONEY; D. PEAIRS; ET AL

    2000-08-01T23:59:59.000Z

    The dynamic response of a jointed beam was measured in laboratory experiments. The data were analyzed and the system was mathematically modeled to establish plausible representations of joint damping behavior. Damping is examined in an approximate, local linear framework using log decrement and half power bandwidth approaches. in addition, damping is modeled in a nonlinear framework using a hybrid surface irregularities model that employs a bristles-construct. Experimental and analytical results are presented.

  7. Feature selection for automatic solder joint inspection

    E-Print Network [OSTI]

    Lee, Cheng-Cheng

    1987-01-01T23:59:59.000Z

    - heating Wave Soldering Drag Soldering Post- soldering Cleaning Inspection and Testing Vapor So Ide ring Fig. 2. 3 Typical Soldering Process 12 (5) simplicity of repair, (6) visual inspectability. The first three properties depend upon both.../testing after the soldering. Good joints after inspection can be sent to the testing process directly, while bad joints should be returned to be touched up by the operator. The types of test depend upon the product. For a typical PC board, electrical test...

  8. International Conference on Advanced Robotics ICAR 2005 July 2005, Seattle WA Abstract--Integrating human and robot into a single system

    E-Print Network [OSTI]

    Rosen, Jacob

    The 12th International Conference on Advanced Robotics ICAR 2005 July 2005, Seattle WA Abstract to the fine manipulation joints (the wrist). An inverted phenomenon was observed during fine manipulation) and functions as a human- amplifier. Its joints and links correspond to those of the human body, and its

  9. Equation of state and helioseismic inversions

    E-Print Network [OSTI]

    Sarbani Basu; J. Christensen-Dalsgaard

    1997-02-19T23:59:59.000Z

    Inversions to determine the squared isothermal sound speed and density within the Sun often use the helium abundance Y as the second parameter. This requires the explicit use of the equation of state (EOS), thus potentially leading to systematic errors in the results if the equations of state of the reference model and the Sun are not the same. We demonstrate how this potential error can be suppressed. We also show that it is possible to invert for the intrinsic difference in the adiabatic exponent Gamma_1 between two equations of state. When applied to solar data such inversion rules out the EFF equation of state completely, while with existing data it is difficult to distinguish between other equations of state.

  10. The Product Form of the Inverse

    E-Print Network [OSTI]

    Ward, Everett Bascomb

    1966-01-01T23:59:59.000Z

    the equations as follows: 19 s(1) X2 = El A2, or 0 0 1 2 1 1 0 0 0 1 v = Lo, 3, 0], and E (&) 2 1 0 0 0 ? 0 1 3 I 0 0 1 the inverse A2 of the new matrix A2 is computed. as follows: A -1 Es(2)A -1 Es(2)Es(1) 2 2 1 2 1 or ? -1 A2 1 0 0 0 ? 0.... column vector v of the elementary matrix E 3 is given by the equation of (2, 16 i as v = [-l, p, 2j, 1 1 thus Es{3) 3 0 -1 1 1 0 1 2 Therefore, the inverse A of A is computed by the equation -1 of (2. 10) as follows: A-1 = A -1 ? Es( A -1 Es(3...

  11. Regularity of mappings inverse to Sobolev mappings

    SciTech Connect (OSTI)

    Vodop'yanov, Sergei K [S.L. Sobolev Institute for Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

    2012-10-31T23:59:59.000Z

    For homeomorphisms {phi}:{Omega}{yields}{Omega}' on Euclidean domains in R{sup n}, n{>=}2, necessary and sufficient conditions ensuring that the inverse mapping belongs to a Sobolev class are investigated. The result obtained is used to describe a new two-index scale of homeomorphisms in some Sobolev class such that their inverses also form a two-index scale of mappings, in another Sobolev class. This scale involves quasiconformal mappings and also homeomorphisms in the Sobolev class W{sup 1}{sub n-1} such that rankD{phi}(x){<=}n-2 almost everywhere on the zero set of the Jacobian det D{phi}(x). Bibliography: 65 titles.

  12. Seismic velocity inversion by differential semblance optimization

    SciTech Connect (OSTI)

    Gockenbach, M.; Symes, W.; Tapia, R.

    1994-12-31T23:59:59.000Z

    Differential Semblance Optimization (DSO) is a novel way of approaching certain inverse problems that arise in exploration seismology. The standard method of formulating these inverse problems -- Output Least-Squares (OLS) -- leads to a highly nonconvex objective function and therefore to a global optimization problem. The OLS problem can be rewritten as a partially linear least-squares problem with linear constraints, with the DSO objective function derived from the quadratic penalty function for this problem. It is shown that, because of the nature of the operators in this problem, the penalty function leads to a globalization procedure: for suitably small values of the penalty parameter, the global minimum of the DSO objective function can be found using local optimization techniques. There is then a path of minimizers, parameterized by the penalty constant, leading to the solution of the OLS problem.

  13. Inverse free-electron laser accelerator

    SciTech Connect (OSTI)

    Pellegrini, C.; Campisi, R.

    1982-01-01T23:59:59.000Z

    We first describe the basic physical properties of an inverse free-electron laser and make an estimate of the order of magnitude of the accelerating field obtainable with such a system; then apply the general ideas to the design of an actual device and through this example we give a more accurate evaluation of the fundamental as well as the technical limitations that this acceleration scheme imposes.

  14. JointResearchCentre THE WATER FRAMEWORK DIRECTIVE

    E-Print Network [OSTI]

    Commission *Directorate General Environment **Joint Research Centre #12;Evolvement of the EU Water.for operational methods and other supporting tools. ll Joint efforts and activities by all involved partiesJointJointResearchCentre THE WATER FRAMEWORK DIRECTIVE: THE CHALLENGES OF TESTING AND VALIDATION

  15. Computationally efficient Bayesian inference for inverse problems.

    SciTech Connect (OSTI)

    Marzouk, Youssef M.; Najm, Habib N.; Rahn, Larry A.

    2007-10-01T23:59:59.000Z

    Bayesian statistics provides a foundation for inference from noisy and incomplete data, a natural mechanism for regularization in the form of prior information, and a quantitative assessment of uncertainty in the inferred results. Inverse problems - representing indirect estimation of model parameters, inputs, or structural components - can be fruitfully cast in this framework. Complex and computationally intensive forward models arising in physical applications, however, can render a Bayesian approach prohibitive. This difficulty is compounded by high-dimensional model spaces, as when the unknown is a spatiotemporal field. We present new algorithmic developments for Bayesian inference in this context, showing strong connections with the forward propagation of uncertainty. In particular, we introduce a stochastic spectral formulation that dramatically accelerates the Bayesian solution of inverse problems via rapid evaluation of a surrogate posterior. We also explore dimensionality reduction for the inference of spatiotemporal fields, using truncated spectral representations of Gaussian process priors. These new approaches are demonstrated on scalar transport problems arising in contaminant source inversion and in the inference of inhomogeneous material or transport properties. We also present a Bayesian framework for parameter estimation in stochastic models, where intrinsic stochasticity may be intermingled with observational noise. Evaluation of a likelihood function may not be analytically tractable in these cases, and thus several alternative Markov chain Monte Carlo (MCMC) schemes, operating on the product space of the observations and the parameters, are introduced.

  16. Inverse hydrochemical models of aqueous extracts tests

    SciTech Connect (OSTI)

    Zheng, L.; Samper, J.; Montenegro, L.

    2008-10-10T23:59:59.000Z

    Aqueous extract test is a laboratory technique commonly used to measure the amount of soluble salts of a soil sample after adding a known mass of distilled water. Measured aqueous extract data have to be re-interpreted in order to infer porewater chemical composition of the sample because porewater chemistry changes significantly due to dilution and chemical reactions which take place during extraction. Here we present an inverse hydrochemical model to estimate porewater chemical composition from measured water content, aqueous extract, and mineralogical data. The model accounts for acid-base, redox, aqueous complexation, mineral dissolution/precipitation, gas dissolution/ex-solution, cation exchange and surface complexation reactions, of which are assumed to take place at local equilibrium. It has been solved with INVERSE-CORE{sup 2D} and been tested with bentonite samples taken from FEBEX (Full-scale Engineered Barrier EXperiment) in situ test. The inverse model reproduces most of the measured aqueous data except bicarbonate and provides an effective, flexible and comprehensive method to estimate porewater chemical composition of clays. Main uncertainties are related to kinetic calcite dissolution and variations in CO2(g) pressure.

  17. Joint inversion of marine seismic AVA and CSEM data using statistical rock-physics models and Markov random fields: Stochastic inversion of AVA and CSEM data

    E-Print Network [OSTI]

    Chen, J.

    2013-01-01T23:59:59.000Z

    seismic AVA and CSEM data for reservoir parameter estimationseismic AVA and CSEM data for reservoir parameter estimationCSEM and seismic data for reservoir parameters based on

  18. Advanced Accessory Power Supply Topologies

    SciTech Connect (OSTI)

    Marlino, L.D.

    2010-06-15T23:59:59.000Z

    This Cooperative Research and Development Agreement (CRADA) began December 8, 2000 and ended September 30, 2009. The total funding provided by the Participant (General Motors Advanced Technology Vehicles [GM]) during the course of the CRADA totaled $1.2M enabling the Contractor (UT-Battelle, LLC [Oak Ridge National Laboratory, a.k.a. ORNL]) to contribute significantly to the joint project. The initial task was to work with GM on the feasibility of developing their conceptual approach of modifying major components of the existing traction inverter/drive to develop low cost, robust, accessory power. Two alternate methods for implementation were suggested by ORNL and both were proven successful through simulations and then extensive testing of prototypes designed and fabricated during the project. This validated the GM overall concept. Moreover, three joint U.S. patents were issued and subsequently licensed by GM. After successfully fulfilling the initial objective, the direction and duration of the CRADA was modified and GM provided funding for two additional tasks. The first new task was to provide the basic development for implementing a cascaded inverter technology into hybrid vehicles (including plug-in hybrid, fuel cell, and electric). The second new task was to continue the basic development for implementing inverter and converter topologies and new technology assessments for hybrid vehicle applications. Additionally, this task was to address the use of high temperature components in drive systems. Under this CRADA, ORNL conducted further research based on GM抯 idea of using the motor magnetic core and windings to produce bidirectional accessory power supply that is nongalvanically coupled to the terminals of the high voltage dc-link battery of hybrid vehicles. In order not to interfere with the motor抯 torque, ORNL suggested to use the zero-sequence, highfrequency harmonics carried by the main fundamental motor current for producing the accessory power. Two studies were conducted at ORNL. One was to put an additional winding in the motor slots to magnetically link with the high frequency of the controllable zero-sequence stator currents that do not produce any zero-sequence harmonic torques. The second approach was to utilize the corners of the square stator punching for the high-frequency transformers of the dc/dc inverter. Both approaches were successful. This CRADA validated the feasibility of GM抯 desire to use the motor抯 magnetic core and windings to produce bidirectional accessory power supply. Three joint U.S. patents with GM were issued to ORNL and GM by the U.S. Patent Office for the research results produced by this CRADA.

  19. The inverse hexagonal ? inverse ribbon ? lamellar gel phase transition sequence in low hydration DOPC:DOPE phospholipid mixtures

    SciTech Connect (OSTI)

    Kent, B.; Garvey, C.J.; Cookson, D.; Bryant, G.; (Aust.Synch.); (ANSTO); (RMIT)

    2009-01-05T23:59:59.000Z

    The inverse hexagonal to inverse ribbon phase transition in a mixed phosphatidylcholine-phosphatidylethanolamine system at low hydration is studied using small and wide angle X-ray scattering. It is found that the structural parameters of the inverse hexagonal phase are independent of temperature. By contrast the length of each ribbon of the inverse ribbon phase increases continuously with decreasing temperature over a range of 50 C. At low temperatures the inverse ribbon phase is observed to have a transition to a gel lamellar phase, with no intermediate fluid lamellar phase. This phase transition is confirmed by differential scanning calorimetry.

  20. Qualification of the Joints for the ITER Central Solenoid

    SciTech Connect (OSTI)

    Martovetsky, N; Berryhill, A; Kenney, S

    2011-09-01T23:59:59.000Z

    The ITER Central Solenoid has 36 interpancake joints, 12 bus joints, and 12 feeder joints in the magnet. The joints are required to have resistance below 4 nOhm at 45 kA at 4.5 K. The US ITER Project Office developed two different types of interpancake joints with some variations in details in order to find a better design, qualify the joints, and establish a fabrication process. We built and tested four samples of the sintered joints and two samples with butt-bonded joints (a total of eight joints). Both designs met the specifications. Results of the joint development, test results, and selection of the baseline design are presented and discussed in the paper. The ITER Central Solenoid (CS) consists of six modules. Each module is composed of six wound hexapancakes and one quadrapancake. The multipancakes are connected electrically and hydraulically by in-line interpancake joints. The joints are located at the outside diameter (OD) of the module. Cable in conduit conductor (CICC) high-current joints are critical elements in the CICC magnets. In addition to low resistivity, the CS joints must fit a space envelope equivalent to the regular conductor cross section and must have low hydraulic impedance and enough structural strength to withstand the hoop and compressive forces during operation, including cycling. This paper is the continuation of the work reported on the intermodule joints.

  1. Institute for ADVANCED STUDY

    E-Print Network [OSTI]

    OF EVENTS 91 REPORT OF THE INSTITUTE LIBRARIES 93 INSTITUTE FOR ADVANCED STUDY/PARK CITY MATHEMATICS. The Institute for Advanced Study has sustained this founding principle for more than sixty-five years

  2. Institute Jor ADVANCED STUDY

    E-Print Network [OSTI]

    for advanced study HELENE L. KAPLAN Of Counsel Skiiddcn Arps Slate Meagher & Flam PETER R. KANN Chairman

  3. Italian Academy Advanced Studies

    E-Print Network [OSTI]

    Qian, Ning

    The Italian Academy for Advanced Studies in America at Columbia University Annual Report 20062007 The Italian Academy for Advanced Studies in America at Columbia University Annual Report 20062007 #12;italian academy for advanced studies in america 1161 Amsterdam Avenue New York, NY 10027 tel: (212) 854-2306 fax

  4. Handbook on dynamics of jointed structures.

    SciTech Connect (OSTI)

    Ames, Nicoli M.; Lauffer, James P.; Jew, Michael D.; Segalman, Daniel Joseph; Gregory, Danny Lynn; Starr, Michael James; Resor, Brian Ray

    2009-07-01T23:59:59.000Z

    The problem of understanding and modeling the complicated physics underlying the action and response of the interfaces in typical structures under dynamic loading conditions has occupied researchers for many decades. This handbook presents an integrated approach to the goal of dynamic modeling of typical jointed structures, beginning with a mathematical assessment of experimental or simulation data, development of constitutive models to account for load histories to deformation, establishment of kinematic models coupling to the continuum models, and application of finite element analysis leading to dynamic structural simulation. In addition, formulations are discussed to mitigate the very short simulation time steps that appear to be required in numerical simulation for problems such as this. This handbook satisfies the commitment to DOE that Sandia will develop the technical content and write a Joints Handbook. The content will include: (1) Methods for characterizing the nonlinear stiffness and energy dissipation for typical joints used in mechanical systems and components. (2) The methodology will include practical guidance on experiments, and reduced order models that can be used to characterize joint behavior. (3) Examples for typical bolted and screw joints will be provided.

  5. Center for Inverse Design: Staff Biographies

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

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

  6. Joint measurability, steering and entropic uncertainty

    E-Print Network [OSTI]

    H. S. Karthik; A. R. Usha Devi; A. K. Rajagopal

    2014-12-02T23:59:59.000Z

    The notion of incompatibility of measurements in quantum theory is in stark contrast with the corresponding classical perspective, where all physical observables are jointly measurable. It is of interest to examine if the results of two or more measurements in the quantum scenario can be perceived from a classical point of view or they still exhibit non-classical features. Clearly, commuting observables can be measured jointly using projective measurements and their statistical outcomes can be discerned classically. However, such simple minded association of compatibility of measurements with commutativity turns out to be limited in an extended framework, where the usual notion of sharp projective valued measurements of self adjoint observables gets broadened to include unsharp measurements of generalized observables constituting positive operator valued measures (POVM). There is a surge of research activity recently towards gaining new physical insights on the emergence of classical behavior via joint measurability of unsharp observables. Here, we explore the entropic uncertainty relation for a pair of discrete observables (of Alice's system) when an entangled quantum memory of Bob is restricted to record outcomes of jointly measurable POVMs only. Within the joint measurability regime, the sum of entropies associated with Alice's measurement outcomes - conditioned by the results registered at Bob's end - are constrained to obey an entropic steering inequality. In this case, Bob's non-steerability reflects itself as his inability in predicting the outcomes of Alice's pair of non-commuting observables with better precision, even when they share an entangled state. As a further consequence, the quantum advantage envisaged for the construction of security proofs in key distribution is lost, when Bob's measurements are restricted to the joint measurability regime.

  7. Joint resummation for heavy quark production.

    E-Print Network [OSTI]

    Banfi, Andrea; Laenen, Eric

    ar X iv :h ep -p h/ 05 10 14 9v 1 1 2 O ct 2 00 5 February 2, 2008 4:14 WSPC/INSTRUCTION FILE jr International Journal of Modern Physics A c World Scientific Publishing Company JOINT RESUMMATION FOR HEAVY QUARK PRODUCTION ANDREA BANFI Cavendish... hadroproduction, at next-to-leading logarithmic accuracy. We exhibit their dependence on the production channel and the color configurations, and compare these distributions to eachother and to NLO. Keywords: Resummation; heavy quark production. 1. Joint threshold...

  8. Joint Genome Institute (JGI) Projects at NERSC

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

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

  9. Joint Faculty Appointments | 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. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron beamJoin HERO Mariners vs.Joint EnvironmentalJoint

  10. Microstructure and Creep Strength of Welds in Advanced Ferritic Power Plant Steels

    E-Print Network [OSTI]

    Cambridge, University of

    Microstructure and Creep Strength of Welds in Advanced Ferritic Power Plant Steels Fujio ABE) power plant at 650 o C (923 K).1 Critical issues for the development of ferritic steels for 650 o C USC joints for tungsten-strengthened advanced 9-12%Cr steels, ASME-P92 (9Cr-0.5Mo-1.8W-VNb), ASME-P122 (11Cr

  11. DOE Joint Genome Institute 2008 Progress Report

    SciTech Connect (OSTI)

    Gilbert, David

    2009-03-12T23:59:59.000Z

    While initially a virtual institute, the driving force behind the creation of the DOE Joint Genome Institute in Walnut Creek, California in the Fall of 1999 was the Department of Energy's commitment to sequencing the human genome. With the publication in 2004 of a trio of manuscripts describing the finished 'DOE Human Chromosomes', the Institute successfully completed its human genome mission. In the time between the creation of the Department of Energy Joint Genome Institute (DOE JGI) and completion of the Human Genome Project, sequencing and its role in biology spread to fields extending far beyond what could be imagined when the Human Genome Project first began. Accordingly, the targets of the DOE JGI's sequencing activities changed, moving from a single human genome to the genomes of large numbers of microbes, plants, and other organisms, and the community of users of DOE JGI data similarly expanded and diversified. Transitioning into operating as a user facility, the DOE JGI modeled itself after other DOE user facilities, such as synchrotron light sources and supercomputer facilities, empowering the science of large numbers of investigators working in areas of relevance to energy and the environment. The JGI's approach to being a user facility is based on the concept that by focusing state-of-the-art sequencing and analysis capabilities on the best peer-reviewed ideas drawn from a broad community of scientists, the DOE JGI will effectively encourage creative approaches to DOE mission areas and produce important science. This clearly has occurred, only partially reflected in the fact that the DOE JGI has played a major role in more than 45 papers published in just the past three years alone in Nature and Science. The involvement of a large and engaged community of users working on important problems has helped maximize the impact of JGI science. A seismic technological change is presently underway at the JGI. The Sanger capillary-based sequencing process that dominated how sequencing was done in the last decade is being replaced by a variety of new processes and sequencing instruments. The JGI, with an increasing number of next-generation sequencers, whose throughput is 100- to 1,000-fold greater than the Sanger capillary-based sequencers, is increasingly focused in new directions on projects of scale and complexity not previously attempted. These new directions for the JGI come, in part, from the 2008 National Research Council report on the goals of the National Plant Genome Initiative as well as the 2007 National Research Council report on the New Science of Metagenomics. Both reports outline a crucial need for systematic large-scale surveys of the plant and microbial components of the biosphere as well as an increasing need for large-scale analysis capabilities to meet the challenge of converting sequence data into knowledge. The JGI is extensively discussed in both reports as vital to progress in these fields of major national interest. JGI's future plan for plants and microbes includes a systematic approach for investigation of these organisms at a scale requiring the special capabilities of the JGI to generate, manage, and analyze the datasets. JGI will generate and provide not only community access to these plant and microbial datasets, but also the tools for analyzing them. These activities will produce essential knowledge that will be needed if we are to be able to respond to the world's energy and environmental challenges. As the JGI Plant and Microbial programs advance, the JGI as a user facility is also evolving. The Institute has been highly successful in bending its technical and analytical skills to help users solve large complex problems of major importance, and that effort will continue unabated. The JGI will increasingly move from a central focus on 'one-off' user projects coming from small user communities to much larger scale projects driven by systematic and problem-focused approaches to selection of sequencing targets. Entire communities of scientists working in a particular field, such as feeds

  12. Contact stress in a whole joint bioreactor : intrinsic levels & augmentation by external loading

    E-Print Network [OSTI]

    Deppe, Allison Margaret

    2007-01-01T23:59:59.000Z

    Stress in a Whole Joint Bioreactor: Intrinsic Levels &Stress in a Whole Joint Bioreactor: Intrinsic levels &Sah, Chair A whole joint bioreactor was recently described

  13. Importance of Elevation and Temperature Inversions for the Interpretat...

    Open Energy Info (EERE)

    Importance of Elevation and Temperature Inversions for the Interpretation of Thermal Infrared Satellite Images Used in Geothermal Exploration Jump to: navigation, search OpenEI...

  14. A Target-Oriented Magnetotelluric Inversion Approach For Characterizin...

    Open Energy Info (EERE)

    to establish an in situ laboratory to investigate the potential for geothermal energy production. Classical 2-D smooth inversion of the MT data, recorded along two profiles,...

  15. High Gradient Inverse Free Electron Laser (IFEL) Accelerator

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

    Gradient High energy gain Inverse Free Electron Laser P. Musumeci UCLA Department of Physics and Astronomy On Behalf of the RUBICON collaboration ATF user meeting, BNL, October 6...

  16. Three-Dimensional Inversion of Magnetotelluric Data on a PC,...

    Open Energy Info (EERE)

    Coso Geothermal Field Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Three-Dimensional Inversion of Magnetotelluric Data on a PC,...

  17. Carbon sequestration monitoring with acoustic double-difference waveform inversion: A case study on SACROC walkaway VSP data

    SciTech Connect (OSTI)

    Huang, Lianjie [Los Alamos National Laboratory; Fehler, Michael [MIT; Malcolm, Alison [MIT; Yang, Di [MIT

    2011-01-01T23:59:59.000Z

    Geological carbon sequestration involves large-scale injection of carbon dioxide into underground geologic formations and is considered as a potential approach for mitigating global warming. Changes in reservoir properties resulting from the CO{sub 2} injection and migration can be characterized using waveform inversions of time-lapse seismic data. The conventional approach for analysis using waveform tomography is to take the difference of the images obtained using baseline and subsequent time-lapse datasets that are inverted independently. By contrast, double-difference waveform inversion uses timelapse seismic datasets to jointly invert for reservoir changes. We apply this method to a field time-lapse walkaway VSP data set acquired in 2008 and 2009 for monitoring CO{sub 2} injection at an enhanced oil recovery field at SACROC, Texas. The double-difference waveform inversion gives a cleaner and more easily interpreted image of reservoir changes, as compared to that obtained with the conventional scheme. Our results from the applicatoin of acoustic double-difference waveform tomography shows some zones with decreased P-wave velocity within the reservoir due to CO{sub 2} injection and migration.

  18. THE ADVANCED CHEMISTRY BASINS PROJECT

    SciTech Connect (OSTI)

    William Goddard; Peter Meulbroek; Yongchun Tang; Lawrence Cathles III

    2004-04-05T23:59:59.000Z

    In the next decades, oil exploration by majors and independents will increasingly be in remote, inaccessible areas, or in areas where there has been extensive shallow exploration but deeper exploration potential may remain; areas where the collection of data is expensive, difficult, or even impossible, and where the most efficient use of existing data can drive the economics of the target. The ability to read hydrocarbon chemistry in terms of subsurface migration processes by relating it to the evolution of the basin and fluid migration is perhaps the single technological capability that could most improve our ability to explore effectively because it would allow us to use a vast store of existing or easily collected chemical data to determine the major migration pathways in a basin and to determine if there is deep exploration potential. To this end a the DOE funded a joint effort between California Institute of Technology, Cornell University, and GeoGroup Inc. to assemble a representative set of maturity and maturation kinetic models and develop an advanced basin model able to predict the chemistry of hydrocarbons in a basin from this input data. The four year project is now completed and has produced set of public domain maturity indicator and maturation kinetic data set, an oil chemistry and flash calculation tool operable under Excel, and a user friendly, graphically intuitive basin model that uses this data and flash tool, operates on a PC, and simulates hydrocarbon generation and migration and the chemical changes that can occur during migration (such as phase separation and gas washing). The DOE Advanced Chemistry Basin Model includes a number of new methods that represent advances over current technology. The model is built around the concept of handling arbitrarily detailed chemical composition of fluids in a robust finite-element 2-D grid. There are three themes on which the model focuses: chemical kinetic and equilibrium reaction parameters, chemical phase equilibrium, and physical flow through porous media. The chemical kinetic scheme includes thermal indicators including vitrinite, sterane ratios, hopane ratios, and diamonoids; and a user-modifiable reaction network for primary and secondary maturation. Also provided is a database of type-specific kerogen maturation schemes. The phase equilibrium scheme includes modules for primary and secondary migration, multi-phase equilibrium (flash) calculations, and viscosity predictions.

  19. Joint with application in electrochemical devices

    DOE Patents [OSTI]

    Weil, K Scott [Richland, WA; Hardy, John S [Richland, WA

    2010-09-14T23:59:59.000Z

    A joint for use in electrochemical devices, such as solid oxide fuel cells (SOFCs), oxygen separators, and hydrogen separators, that will maintain a hermetic seal at operating temperatures of greater than 600.degree. C., despite repeated thermal cycling excess of 600.degree. C. in a hostile operating environment where one side of the joint is continuously exposed to an oxidizing atmosphere and the other side is continuously exposed to a wet reducing gas. The joint is formed of a metal part, a ceramic part, and a flexible gasket. The flexible gasket is metal, but is thinner and more flexible than the metal part. As the joint is heated and cooled, the flexible gasket is configured to flex in response to changes in the relative size of the metal part and the ceramic part brought about by differences in the coefficient of thermal expansion of the metal part and the ceramic part, such that substantially all of the tension created by the differences in the expansion and contraction of the ceramic and metal parts is absorbed and dissipated by flexing the flexible gasket.

  20. Dashboards in Higher UMACRAO/WACRAO Joint

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    Dashboards in Higher Education UMACRAO/WACRAO Joint Conference November 1-3, 2006 Phil Hull charts, pie charts and gauges are usually set in a portal-like environment that is often role for Short Term Decision Making Transactional Current, Unit Record Level Data Used for Daily Operational

  1. The Trade and Climate Change Joint Agenda

    E-Print Network [OSTI]

    The Trade and Climate Change Joint Agenda CEPS Working Document No. 295/June 2008 Thomas L. Brewer Abstract Climate change, international trade, investment and technology transfer are all issues that have............................................................................ 6 3.2 Coverage of the Multilateral Climate and Trade Regimes

  2. Jointly organised by HKU CIVIL ENGRG. DEPT.

    E-Print Network [OSTI]

    Tam, Vincent W. L.

    SEMINAR Jointly organised by and HKU CIVIL ENGRG. DEPT. Centre for Infrastructure and Construction Industry Development THE USE OF TRENCHLESS TECHNOLOGY FOR THE IMPROVEMENT OF URBAN HABITATS by Ian, vibration, and air pollution. The frustration this causes is aggravated by the knowledge that there often

  3. Wide temperature range seal for demountable joints

    DOE Patents [OSTI]

    Sixsmith, H.; Valenzuela, J.A.; Nutt, W.E.

    1991-07-23T23:59:59.000Z

    The present invention is directed to a seal for demountable joints operating over a wide temperature range down to liquid helium temperatures. The seal has anti-extrusion guards which prevent extrusion of the soft ductile sealant material, which may be indium or an alloy thereof. 6 figures.

  4. Wide temperature range seal for demountable joints

    DOE Patents [OSTI]

    Sixsmith, Herbert (Norwich, VT); Valenzuela, Javier A. (Grantham, NH); Nutt, William E. (Enfield, NH)

    1991-07-23T23:59:59.000Z

    The present invention is directed to a seal for demountable joints operating over a wide temperature range down to liquid helium temperatures. The seal has anti-extrusion guards which prevent extrusion of the soft ductile sealant material, which may be indium or an alloy thereof.

  5. Wild Hypersurfaces joint work with Andrew Crabbe

    E-Print Network [OSTI]

    Leuschke, Graham

    Wild Hypersurfaces joint work with Andrew Crabbe Graham J. Leuschke gjleusch@math.syr.edu Syracuse University Notre Dame, 6 Nov 2010 , Wild Hypersurfaces, Crabbe颅Leuschke 1/14 #12;Outline Representation types in general Tame and Wild examples MCM modules over hypersurfaces Finite MCM type for hypersurfaces Tame MCM

  6. Andres Loh joint work with Ralf Hinze

    E-Print Network [OSTI]

    L鰄, Andres

    Trinity Andres L╫h joint work with Ralf Hinze Utrecht University January 11, 2008 #12;About me Ph), polytypic / datatype-generic programming, type systems (dependent types) Andres L╫h Trinity 2 #12;What is Trinity? Trinity is a programming language designed by Ralf Hinze and me. It is called Trinity because

  7. Joint News Release ELEVENTH ITER NEGOTIATIONS MEETING

    E-Print Network [OSTI]

    of Science and Technology of China Department of International Co-operation Luo Delong luodl@mail.most.govJoint News Release ELEVENTH ITER NEGOTIATIONS MEETING CHENGDU , CHINA, 24OCTOBER 2005 Delegations from China, European Union, Japan, the Republic of Korea, the Russian Federation and the United States

  8. Genomic Advances to Improve Biomass for Biofuels (LBNL Science at the Theater)

    ScienceCinema (OSTI)

    Rokhsar, Daniel

    2011-04-28T23:59:59.000Z

    Lawrence Berkeley National Lab bioscientist Daniel Rokhsar discusses genomic advances to improve biomass for biofuels. He presented his talk Feb. 11, 2008 in Berkeley, California as part of Berkeley Lab's community lecture series. Rokhsar works with the U.S. Department of Energy's Joint Genome Institute and Berkeley Lab's Genomics Division.

  9. ankle joint complex: Topics by E-print Network

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

    then there exists A S(H)m Li, Chi-Kwong 458 READY FOR TODAY. PREPARING FOR TOMORROW. The Joint Operating Environment is intended to inform joint concept Mathematics Websites...

  10. aluminum aa2024 joints: Topics by E-print Network

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

    337 389 494 In 1977, 175 joint fishing ventures with the participation-215. In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations...

  11. ankle joint: Topics by E-print Network

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

    then there exists A S(H)m Li, Chi-Kwong 366 READY FOR TODAY. PREPARING FOR TOMORROW. The Joint Operating Environment is intended to inform joint concept Mathematics Websites...

  12. achieving joint benefits: Topics by E-print Network

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

    337 389 494 In 1977, 175 joint fishing ventures with the participation-215. In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations...

  13. ankle joint direkte: Topics by E-print Network

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

    then there exists A S(H)m Li, Chi-Kwong 375 READY FOR TODAY. PREPARING FOR TOMORROW. The Joint Operating Environment is intended to inform joint concept Mathematics Websites...

  14. alpha rotary joint: Topics by E-print Network

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

    337 389 494 In 1977, 175 joint fishing ventures with the participation-215. In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations...

  15. activities implemented jointly: Topics by E-print Network

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

    337 389 494 In 1977, 175 joint fishing ventures with the participation-215. In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations...

  16. acromioclavicular joint separations: Topics by E-print Network

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

    337 389 494 In 1977, 175 joint fishing ventures with the participation-215. In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations...

  17. artificial hip joints: Topics by E-print Network

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

    this could involve the use of additively Evans, Paul 2 COMPUTATIONAL MODELING OF HIP JOINT MECHANICS CiteSeer Summary: The hip joint is one of the largest weight bearing...

  18. Expansion Joint Concepts for High Temperature Insulation Systems

    E-Print Network [OSTI]

    Harrison, M. R.

    1980-01-01T23:59:59.000Z

    As high temperature steam and process piping expands with heat, joints begin to open between the insulation sections, resulting in increased energy loss and possible unsafe surface temperatures. Many different expansion joint designs are presently...

  19. Optimal Joint Preventive Maintenance and Production Policies* Xiaodong Yao

    E-Print Network [OSTI]

    Marcus, Steven I.

    Optimal Joint Preventive Maintenance and Production Policies* Xiaodong Yao SAS Institute Inc. Cary preventive maintenance (PM) and production policies for an unreliable production-inventory system in which to establish some additional structural properties. Keywords: optimal preventive maintenance, joint maintenance

  20. Variation in joint fluid composition and its effect on the tribology of replacement joint articulation

    E-Print Network [OSTI]

    Mazzucco, Daniel Clarke, 1976-

    2003-01-01T23:59:59.000Z

    Polyethylene wear is a significant clinical problem limiting the long-term survival of joint replacement prostheses, particularly in total hip arthroplasty (THA) and total knee arthroplasty (TKA). Although the tribology ...

  1. On Optimizing Joint Inversion of Constrained Geophysical Datasets Anibal Sosa1 Leticia Velazquez1;2, Aaron Velasco3,

    E-Print Network [OSTI]

    Ward, Karen

    of Texas at El Paso, El Paso, Texas 79968-0514, USA 3Department of Geological Sciences, The University) algorithm to characterize 1D earth structure using geophysical datasets with two different optimization

  2. Characterization of heterogeneous near-surface materials by joint 2D inversion of dc resistivity and seismic data

    E-Print Network [OSTI]

    Meju, Max

    multidimensional non- invasive dc resistivity and seismic refraction investigations of the near-surface have and seismic data Luis A. Gallardo1 and Max A. Meju Department of Environmental Science, Lancaster University-gradients of electrical resistivity and seismic velocity as constraints so as to investigate more precisely

  3. Joint Radial Inversion of Resistivity and Sonic Logs to Estimate In-Situ Petrophysical and Elastic Properties of Formations

    E-Print Network [OSTI]

    Torres-Verd韓, Carlos

    in the frequency domain. Synthetic cases consider water-base mud filtrate invading a hydrocarbon-bearing sand-wellbore damage, resulting from drilling and mud-filtrate invasion, can substantially affect sonic and resistivity, with the formation model described by a radial variation of water and hydrocarbon saturations representative of mud

  4. Joint porosity depth trend estimation and lithology/fluid classification by Bayesian inversion Kjartan Rimstad and Henning Omre

    E-Print Network [OSTI]

    Eidsvik, Jo

    ,0 Sand,Shale,Sand,kc Sand,zc Sand] and the prior model of is p(). We assume that seismic AVO data. The ultimate goal of this study is to clas- sify lithology/fluid from sesimic AVO data using our stochastic Consider a geological model of a reservoir in one dimension, and the four classes oil-, gas- and brine

  5. Shear velocity model for the Kyrgyz Tien Shan from joint inversion of receiver function and surface wave data

    E-Print Network [OSTI]

    Gilligan, Amy; Roecker, Steven W.; Priestley, Keith F.; Nunn, Ceri

    2014-07-09T23:59:59.000Z

    frame based on the principal component of motion of the incident phase, in order to maximize the energy of the converted mode. Using the nomenclature of Farra & Vinnik (2000) and Vinnik (1977), for P receiver functions this is the (L, H, Q) frame, where... ; the asymmetry in our estimates suggests that sources of noise, partic- ularly in the 520 s band, are predominantly from the south. Given that the Arctic Ocean is covered with ice for portions of the year, it is not surprising that noise from the Indian Ocean...

  6. Joint inversion of surface waves and teleseismic body waves across the Tibetan collision zone: the fate of subducted Indian lithosphere

    E-Print Network [OSTI]

    Nunn, Ceri; Roecker, Steven W.; Priestley, Keith F.; Liang, Xiaofeng; Gilligan, Amy

    2014-09-01T23:59:59.000Z

    for traveltimes at shallow depths. 2 GEOTECTONIC SETT ING At the surface, the Tibetan plateau is a relatively uniform area of ?5 km elevation. Its formation involved numerous collisions, and several major sutures formed during the closure of the Tethys ocean (Fig... . Studies of Sn propagation indicate that Sn energy is more strongly attenuated in the northern plateau in comparison to the south (Ni & Barazangi 1983; McNamara et al. 1995). Barron & Priestley (2009) investigated the propagation of the Sn phase over a...

  7. Advanced Rooftop Unit Control

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

    Advanced-Rooftop-Unit-Control Sign In About | Careers | Contact | Investors | bpa.gov Search Policy & Reporting Expand Policy & Reporting EE Sectors Expand EE Sectors...

  8. DOE Advanced Protection Project

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

    protection logic in each relay 17 Copyright 2010, Southern California Edison Advanced Protection on the System of the Future * Use fault-interrupting switches with relays...

  9. Advanced Studies Institute

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

    Engineering Institute Advanced Studies Institute Contact Institute Director Charles Farrar (505) 663-5330 Email UCSD EI Director Michael Todd (858) 534-5951 Professional Staff...

  10. Advanced Thermal Control

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

    Potential Thermal Control Technologies Advanced Vehicle Systems Technology Transfer Jet Cooling Alternative Coolants TIM Low R Structure Phase Change Spray Cooling Air Cooling...

  11. Advanced Propulsion Technology Strategy

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

    Alternative Sources) Hydrogen Time ADVANCED PROPULSION TECHNOLOGY STRATEGY DOWNSIZED TURBO GAS ENGINE CHEVROLET CRUZE 1.4L TURBO ECOTEC Downsized SIDI Turbo Boosting HCCI -...

  12. Joint measurements of spin, operational locality and uncertainty

    E-Print Network [OSTI]

    Erika Andersson; Stephen M. Barnett; Alain Aspect

    2005-09-21T23:59:59.000Z

    Joint, or simultaneous, measurements of non-commuting observables are possible within quantum mechanics, if one accepts an increase in the variances of the jointly measured observables. In this paper, we discuss joint measurements of a spin 1/2 particle along any two directions. Starting from an operational locality principle, it is shown how to obtain a bound on how sharp the joint measurement can be. We give a direct interpretation of this bound in terms of an uncertainty relation.

  13. Microbial Genomics Data from the DOE Joint Genome Institute (JGI)

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

    As of March 2008, The Joint Genome Institute has released 296 Prokaryotic microbial sites, with 216 in finished status.

  14. SPIDERS Joint Capability Technology Demonstration Industry Day Presentations

    Broader source: Energy.gov [DOE]

    Presentations from the SPIDERS Joint Capability Technology Demonstration Industry Day, which occurred on April 22, 2014, at Fort Carson, Colorado.

  15. Potential inversion with subbarrier fusion data revisited

    E-Print Network [OSTI]

    K. Hagino; Y. Watanabe

    2007-06-18T23:59:59.000Z

    We invert experimental data for heavy-ion fusion reactions at energies well below the Coulomb barrier in order to directly determine the internucleus potential between the colliding nuclei. In contrast to the previous applications of the inversion formula, we explicitly take into account the effect of channel couplings on fusion reactions, by assuming that fusion cross sections at deep subbarrier energies are governed by the lowest barrier in the barrier distribution. We apply this procedure to the $^{16}$O +$^{144}$Sm and $^{16}$O +$^{208}$Pb reactions, and find that the inverted internucleus potential are much thicker than phenomenological potentials. A relation to the steep fall-off phenomenon of fusion cross sections recently found at deep subbarrier energies is also discussed.

  16. Supersymmetric inversion of effective-range expansions

    E-Print Network [OSTI]

    Bikashkali Midya; J閞閙ie Evrard; Sylvain Abramowicz; O. L. Ram韗ez Su醨ez; Jean-Marc Sparenberg

    2015-05-26T23:59:59.000Z

    A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

  17. Supersymmetric inversion of effective-range expansions

    E-Print Network [OSTI]

    Midya, Bikashkali; Abramowicz, Sylvain; Su醨ez, O L Ram韗ez; Sparenberg, Jean-Marc

    2015-01-01T23:59:59.000Z

    A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

  18. Supersymmetric inversion of effective-range expansions

    E-Print Network [OSTI]

    Bikashkali Midya; J閞閙ie Evrard; Sylvain Abramowicz; O. L. Ram韗ez Su醨ez; Jean-Marc Sparenberg

    2015-01-16T23:59:59.000Z

    A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

  19. Inverse Vernier Effects in Coupled Lasers

    E-Print Network [OSTI]

    Ge, Li

    2015-01-01T23:59:59.000Z

    In this report we study the Vernier effect in coupled laser systems consisting of two cavities. We show that depending on the nature of their coupling, not only can the "supermodes" formed at the overlapping resonances of the coupled cavities have the lowest thresholds and lase first as previously suggested, leading to a manifestation of the typical Vernier effect now in an active system; these supermodes can also have increased thresholds and are hence suppressed, which can be viewed as an inverse Vernier effect. We attribute this effect to detuning-dependent Q-spoiling, and it can lead to an increased free spectrum range and possibly single-mode lasing, which may explain the experimental findings of several previous work. We illustrate this effect using two coupled micro-ring cavities and a micro-ring cavity coupled to a slab cavity, and we discuss its relation to the existence of exceptional points in coupled lasers.

  20. Combined Borehole Seismic and Electromagnetic Inversion For High-Resolution Petrophysical Assessment Of Hydocarbon Reservoirs

    SciTech Connect (OSTI)

    Carlos Torres-Verdin; G. Michael Hoversten; Ki Ha Lee; Gregory Newman; Kurt Nihei

    2008-12-31T23:59:59.000Z

    This report summarizes the work performed between January 2005 and December 2007, under DOE research contract DE-FC26-04NT15507. The project is was performed by the Center for Petroleum and Geosystems Engineering of The University of Texas at Austin and Lawrence Berkeley National Laboratory under the auspices of the National Energy Technology Office (NETL) and the Strategic Center for Natural Gas and Oil (SCNGO). During the three-year project, we developed new methods to combine borehole sonic and electromagnetic (EM) measurements for the improved assessment of elastic and petrophysical properties of rock formations penetrated by a well. Sonic measurements consisted of full waveform acoustic amplitudes acquired with monopole and dipole sources, whereas EM measurements consisted of frequency-domain voltages acquired with multi-coil induction systems. The combination of sonic and EM measurements permitted the joint estimation of elastic and petrophysical properties in the presence of mud-filtrate invasion. It was conclusively shown that the combined interpretation of sonic and EM measurements reduced non-uniqueness in the estimation of elastic and petrophysical properties and improved the spatial resolution of the estimations compared to estimations yielded separately from the two types of measurements. Moreover, this approach enabled the assessment of dynamic petrophysical properties such as permeability, as it incorporated the physics of mud-filtrate invasion in the interpretation of the measurements. The first part of the project considered the development of fast and reliable numerical algorithms to simulate borehole sonic waveforms in 2D, 3D, and radial 1D media. Such algorithms were subsequently used in the quantitative estimation of elastic properties jointly from borehole sonic and EM measurements. In the second part of the project we developed a new algorithm to estimate water saturation, porosity, and dry-rock elastic moduli jointly from borehole sonic and EM measurements. This algorithm assumed radial 1D variations of fluid saturation due to mud-filtrate invasion. Subsequently, we adapted the estimation method to interpret borehole field measurements acquired in both a shaly-sand sedimentary sequence and a tight-gas sandstone formation. In the two cases, we simulated the process of mud-filtrate invasion and concomitantly honored sonic and EM measurements. We produced reliable estimates of permeability and dry-rock moduli that were successfully validated with rock-core measurements. Finally, we introduced a new stochastic inversion procedure to estimate elastic, electrical, and petrophysical properties of layered media jointly from waveform sonic and frequency-domain EM measurements. The procedure was based on Bayesian statistical inversion and delivered estimates of uncertainty under various forms of a-priori information about the unknown properties. Tests on realistic synthetic models confirmed the reliability of this procedure to estimate elastic and petrophysical properties jointly from sonic and EM measurements. Several extended abstracts and conference presentations stemmed from this project, including 2 SEG extended abstracts, 1 SPE extended abstract, and 2 SPWLA extended abstracts. Some of these extended abstracts have been submitted for publication in peer-reviewed journals.

  1. Joint Traffic Blocking and Routing under Network Failures and Maintenances

    E-Print Network [OSTI]

    Liu, Yong

    Joint Traffic Blocking and Routing under Network Failures and Maintenances Chao Liang ECE Dept paths. Therefore, it is important to design ingress traffic blocking and routing jointly to achieve a good balance between the two factors. Working towards this goal, we formulate a joint ingress blocking

  2. Joints and Veins Earth Structure (2nd Edition), 2004

    E-Print Network [OSTI]

    ed) 69/12/2010 Ideal joint structure (a) Block diagram showing the various components of an ideal beds, shorter joints, smaller shadows Thus, closer spacing (a) Block diagram illustrating stress shadowJoints and Veins Earth Structure (2nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben

  3. Guide to Dowel LoadTransfer Systems for Jointed Concrete

    E-Print Network [OSTI]

    Guide to Dowel LoadTransfer Systems for Jointed Concrete Roadway Pavements TECH BRIEF SEPTEMBER 2011 #12;#12;GUIDE TO DOWEL LOAD TRANSFER SYSTEMS FOR JOINTED CONCRETE ROADWAY PAVEMENTS i Technical and Subtitle Guide to Dowel Load Transfer Systems for Jointed Concrete Roadway Pavements 5. Report Date

  4. Look at this: the neural correlates of initiating and responding to bids for joint attention

    E-Print Network [OSTI]

    Redcay, Elizabeth

    When engaging in joint attention, one person directs another person's attention to an object (Initiating Joint Attention, IJA), and the second person's attention follows (Responding to Joint Attention, RJA). As such, joint ...

  5. Optical Aharonov-Bohm effect: an inverse hyperbolic problems approach

    E-Print Network [OSTI]

    Gregory Eskin

    2007-10-18T23:59:59.000Z

    We describe the general setting for the optical Aharonov-Bohm effect based on the inverse problem of the identification of the coefficients of the governing hyperbolic equation by the boundary measurements. We interpret the inverse problem result as a possibility in principle to detect the optical Aharonov-Bohm effect by the boundary measurements.

  6. Constrained Inverse Volume Rendering for Planetary Nebulae Marcus Magnor

    E-Print Network [OSTI]

    Utah, University of

    Inverse Volume Rendering I.4.m [Image Processing and Computer Vision]: Miscellaneous--Volumetric Modeling that we are observing 2D projections of 3D volumes of glowing gas, the actual spatial struc- ture of PNeConstrained Inverse Volume Rendering for Planetary Nebulae Marcus Magnor MPI Informatik, Germany

  7. Anomalous Phase Inversion in Polymer Blends Prepared by Cryogenic Mechanical

    E-Print Network [OSTI]

    , as well as interpenetrating and bicontinu- ous networks.7,8 Phase inversion occurs when the mi- norityAnomalous Phase Inversion in Polymer Blends Prepared by Cryogenic Mechanical Alloying Archie P strategies for producing highly dis- persed multicomponent polymer blends. By their very nature

  8. Wavelet based inversion of gravity data Fabio Boschetti

    E-Print Network [OSTI]

    Boschetti, Fabio

    1 Wavelet based inversion of gravity data Fabio Boschetti CSIRO Exploration & Mining and Australian Running Heading: Wavelet based inversion of gravity data #12;2 ABSTRACT The Green's function of the Poisson equation, and its spatial derivatives, lead to a family of wavelets specifically tailored

  9. Inverse Modelling in Geology by Interactive Evolutionary Computation

    E-Print Network [OSTI]

    Boschetti, Fabio

    Inverse Modelling in Geology by Interactive Evolutionary Computation Chris Wijns a,b,, Fabio of geological processes, in the absence of established numerical criteria to act as inversion targets, requires evolutionary computation provides for the inclusion of qualitative geological expertise within a rigorous

  10. Inversed Temperature Dependence Aware Clock Skew Scheduling for Sequential

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    Inversed Temperature Dependence Aware Clock Skew Scheduling for Sequential Circuits Jieyi Long}@eecs.northwestern.edu Abstract -- We present an Inversed Temperature Dependence (ITD) aware clock skew scheduling framework, we propose an algorithm for synergistic temperature aware clock skew scheduling and dual

  11. Hyperparameter estimation for uncertainty quantification in mesoscale carbon dioxide inversions

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Hyperparameter estimation for uncertainty quantification in mesoscale carbon dioxide inversions-validation (GCV) and x2 test are compared for the first time under a realistic setting in a mesoscale CO2 estimation, uncertainty quantification, mesoscale carbon dioxide inversions 1. Introduction The atmosphere

  12. THE FUKUSHIMA INVERSE PROBLEM Marta Martinez-Camara, Ivan Dokmanic,

    E-Print Network [OSTI]

    Vetterli, Martin

    THE FUKUSHIMA INVERSE PROBLEM Marta Martinez-Camara, Ivan Dokmani碿, Juri Ranieri, Robin Scheibler material was released from Fukushima in March 2011 is crucial to understand the scope of the consequences regular- ization that solves the Fukushima inverse problem blindly. Together with the atmospheric

  13. Lithology-Fluid Inversion based on Prestack Seismic Data

    E-Print Network [OSTI]

    Eidsvik, Jo

    Lithology-Fluid Inversion based on Prestack Seismic Data Marit Ulvmoen Summary The focus of the study is on lithology-fluid inversion from prestack seismic data. The target zone is a 3D reservoir model. The likelihood model relates the lithology-fluid classes to elastic variables and the seismic

  14. Computationally Efficient Regularized Inversion for Highly Parameterized MODFLOW Models

    E-Print Network [OSTI]

    Barrash, Warren

    . INTRODUCTION The inverse problem in groundwater modeling is generally ill-posed and non-unique. The typical geological heterogeneity has not been possible in common groundwater modeling practice. The principal reasons-Marquardt methods, and (3) lack of experience within the groundwater modeling community with regularized inversion

  15. Pulsed Magnetic Welding for Advanced Core and Cladding Steel

    SciTech Connect (OSTI)

    Cao, Guoping; Yang, Yong

    2013-12-19T23:59:59.000Z

    To investigate a solid-state joining method, pulsed magnetic welding (PMW), for welding the advanced core and cladding steels to be used in Generation IV systems, with a specific application for fuel pin end-plug welding. As another alternative solid state welding technique, pulsed magnetic welding (PMW) has not been extensively explored on the advanced steels. The resultant weld can be free from microstructure defects (pores, non-matallic inclusions, segregation of alloying elements). More specifically, the following objectives are to be achieved, 1) To design a suitable welding apparatus fixture, and optimize welding parameters for repeatable and acceptable joining of the fuel pin end-plug. The welding will be evaluated using tensile tests for lap joint weldments and helium leak tests for the fuel pin end-plug. 2) investigate the microstructural and mechanical properties changes in PMW weldments of proposed advanced core and cladding alloys. 3) Simulate the irradiation effects on the PWM weldments using ion irradiation.

  16. Advanced Demand Responsive Lighting

    E-Print Network [OSTI]

    Advanced Demand Responsive Lighting Host: Francis Rubinstein Demand Response Research Center demand responsive lighting systems 颅 Importance of dimming 颅 New wireless controls technologies 路 Advanced Demand Responsive Lighting (commenced March 2007) #12;Objectives 路 Provide up-to-date information

  17. Kansas Advanced Semiconductor Project

    SciTech Connect (OSTI)

    Baringer, P.; Bean, A.; Bolton, T.; Horton-Smith, G.; Maravin, Y.; Ratra, B.; Stanton, N.; von Toerne, E.; Wilson, G.

    2007-09-21T23:59:59.000Z

    KASP (Kansas Advanced Semiconductor Project) completed the new Layer 0 upgrade for D0, assumed key electronics projects for the US CMS project, finished important new physics measurements with the D0 experiment at Fermilab, made substantial contributions to detector studies for the proposed e+e- international linear collider (ILC), and advanced key initiatives in non-accelerator-based neutrino physics.

  18. Pipeline safety joint eliminates need for divers

    SciTech Connect (OSTI)

    Not Available

    1983-04-01T23:59:59.000Z

    The Sea-Hook coupling is a diverless pressure-compensated pipeline safety joint designed to protect the pipe from damage by excessive physical loads. The coupling provides a predetermined weak point in the line that will cause a controlled separation when the line is exposed to strong wave action or dragging anchors. Moreover, it offers prepressurized remote lockout protection, metal seal integrity, no hand-up separation, enclosed bolting, optimal manual lockout, and no springs or shear rings.

  19. Low Distortion Welded Joints for NCSX

    SciTech Connect (OSTI)

    M. Denault, M Viola, W. England

    2009-02-19T23:59:59.000Z

    The National Compact Stellarator Experiment (NCSX) required precise positioning of the field coils in order to generate suitable magnetic fields. A set of three modular field coils were assembled to form the Half Field-Period Assemblies (HPA). Final assembly of the HPA required a welded shear plate to join individual coils in the nose region due to the geometric limitations and the strength constraints. Each of the modular coil windings was wound on a stainless steel alloy (Stellalloy) casting. The alloy is similar to austenitic 316 stainless steel. During the initial welding trials, severe distortion, of approximately 1/16", was observed in the joint caused by weld shrinkage. The distortion was well outside the requirements of the design. Solutions were attempted through several simultaneous routes. The joint design was modified, welding processes were changed, and specialized heat reduction techniques were utilized. A final joint design was selected to reduce the amount of weld material needed to be deposited, while maintaining adequate penetration and strength. Several welding processes and techniques using Miller Axcess equipment were utilized that significantly reduced heat input. The final assembly of the HPA was successful. Distortion was controlled to 0.012", well within the acceptable design tolerance range of 0.020" over a 3.5 foot length.

  20. Adaptive dynamic inversion of nonlinear systems subjected to control saturation constraints

    E-Print Network [OSTI]

    Tandale, Monish Deepak

    2007-09-17T23:59:59.000Z

    The adaptive dynamic inversion control methodology uses dynamic inversion to calculate the control, and adaptation to compensate for the errors in the inversion due to model uncertainties. Traditionally, adaptive control assumes full authority...

  1. Inversion of TEM sounding data using the steepest descent and the conjugate gradients methods

    E-Print Network [OSTI]

    Alsabti, Abdallah S

    2001-01-01T23:59:59.000Z

    In this study, the inversion of TEM sounding is investigated. I solved the over-determined and the under-determined inversion problems using the steepest descent and the conjugate gradients methods. The study depends on results from the inversion...

  2. Comparison of Joint Modeling Approaches Including Eulerian Sliding Interfaces

    SciTech Connect (OSTI)

    Lomov, I; Antoun, T; Vorobiev, O

    2009-12-16T23:59:59.000Z

    Accurate representation of discontinuities such as joints and faults is a key ingredient for high fidelity modeling of shock propagation in geologic media. The following study was done to improve treatment of discontinuities (joints) in the Eulerian hydrocode GEODYN (Lomov and Liu 2005). Lagrangian methods with conforming meshes and explicit inclusion of joints in the geologic model are well suited for such an analysis. Unfortunately, current meshing tools are unable to automatically generate adequate hexahedral meshes for large numbers of irregular polyhedra. Another concern is that joint stiffness in such explicit computations requires significantly reduced time steps, with negative implications for both the efficiency and quality of the numerical solution. An alternative approach is to use non-conforming meshes and embed joint information into regular computational elements. However, once slip displacement on the joints become comparable to the zone size, Lagrangian (even non-conforming) meshes could suffer from tangling and decreased time step problems. The use of non-conforming meshes in an Eulerian solver may alleviate these difficulties and provide a viable numerical approach for modeling the effects of faults on the dynamic response of geologic materials. We studied shock propagation in jointed/faulted media using a Lagrangian and two Eulerian approaches. To investigate the accuracy of this joint treatment the GEODYN calculations have been compared with results from the Lagrangian code GEODYN-L which uses an explicit treatment of joints via common plane contact. We explore two approaches to joint treatment in the code, one for joints with finite thickness and the other for tight joints. In all cases the sliding interfaces are tracked explicitly without homogenization or blending the joint and block response into an average response. In general, rock joints will introduce an increase in normal compliance in addition to a reduction in shear strength. In the present work we consider the limiting case of stiff discontinuities that only affect the shear strength of the material.

  3. advanced reactors advanced: Topics by E-print Network

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

    . . . . 18 3.4.1 Heat Exchanger - Code description . . . . . . . . . . . . . . . 18 3.4.2 Simulation ResultsADVANCED POWER PLANT MODELING WITH APPLICATIONS TO THE ADVANCED BOILING...

  4. advanced ceramics advanced: Topics by E-print Network

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

    . . . . 18 3.4.1 Heat Exchanger - Code description . . . . . . . . . . . . . . . 18 3.4.2 Simulation ResultsADVANCED POWER PLANT MODELING WITH APPLICATIONS TO THE ADVANCED BOILING...

  5. Advanced Vehicle Electrification and Transportation Sector Electrifica...

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

    Advanced Vehicle Electrification and Transportation Sector Electrification Plug-in Hybrid (PHEV) Vehicle Technology Advancement and Demonstration Activity Advanced Vehicle...

  6. Sunspot umbra atmosphere from full Stokes inversion

    E-Print Network [OSTI]

    Wenzel, R; Fluri, D M; Arnaud, J; Sainz-Dalda, A

    2010-01-01T23:59:59.000Z

    Sunspots are prominent manifestations of the solar cycle and provide key constraints for understanding its operation. Also, knowing internal structure of sunspots allows us to gain insights on the energy transport in strong magnetic fields and, thus, on the processes inside the convection zone, where solar magnetic fields are generated and amplified before emerging at the surface on various scales, even during solar minima. In this paper, we present results of a spectropolarimetric analysis of a sunspot observed during the declining phase of the solar cycle 23. By inversion of full Stokes spectra observed in several spectral regions in the optical at the THEMIS facility we infer the height dependence of physical quantities such as the temperature and the magnetic field strength for different sunspot regions. The simultaneous use of atomic (Fe{\\sc i} 5250.2 and 5250.6 \\AA) and highly temperature sensitive molecular (TiO 7055 \\AA and MgH 5200 \\AA) lines allow us to improve a model of the sunspot umbra.

  7. Joining SI3N4 for Advanced Turbomachinery Applications

    SciTech Connect (OSTI)

    GLASS, S. JILL; LOEHMAN, RONALD E.; HOSKING, F. MICHAEL; STEPHENS JR., JOHN J.; VIANCO, PAUL T.; NEILSEN, MICHAEL K.; WALKER, CHARLES A.; POLLINGER, J.P.; MAHONEY, F.M.; QUILLEN, B.G.

    2000-07-01T23:59:59.000Z

    The main objective of this project was to develop reliable, low-cost techniques for joining silicon nitride (Si{sub 3}N{sub 4}) to itself and to metals. For Si{sub 3}N{sub 4} to be widely used in advanced turbomachinery applications, joining techniques must be developed that are reliable, cost-effective, and manufacturable. This project addressed those needs by developing and testing two Si{sub 3}N{sub 4} joining systems; oxynitride glass joining materials and high temperature braze alloys. Extensive measurements were also made of the mechanical properties and oxidation resistance of the braze materials. Finite element models were used to predict the magnitudes and positions of the stresses in the ceramic regions of ceramic-to-metal joints sleeve and butt joints, similar to the geometries used for stator assemblies.

  8. Moho topography beneath the Corinth Rift area (Greece) from inversion of gravity data

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Moho topography beneath the Corinth Rift area (Greece) from inversion of gravity data C. Tiberi,1 to Miocene lithospheric instabilities. Key words: boudinage, continental rifts, gravity inversion, Greece

  9. Inverse Cascade Regime in Shell Models of 2-Dimensional Turbulence

    E-Print Network [OSTI]

    Thomas Gilbert; Victor S. L'vov; Anna Pomyalov; Itamar Procaccia

    2002-01-13T23:59:59.000Z

    We consider shell models that display an inverse energy cascade similar to 2-dimensional turbulence (together with a direct cascade of an enstrophy-like invariant). Previous attempts to construct such models ended negatively, stating that shell models give rise to a "quasi-equilibrium" situation with equipartition of the energy among the shells. We show analytically that the quasi-equilibrium state predicts its own disappearance upon changing the model parameters in favor of the establishment of an inverse cascade regime with K41 scaling. The latter regime is found where predicted, offering a useful model to study inverse cascades.

  10. Three-dimensional geologic structures from inversion of gravity anomalies

    E-Print Network [OSTI]

    Hinson, Charles Alvin

    1976-01-01T23:59:59.000Z

    . Parameters used were: Zo=7 km, R=l gm/cm , fr=0. 09 km-', fz=0. 125 km iterations=6 and final rms difference was 7. 6 10-4 km. . 42 12 Inversion Model 1. Parameters used were p = 0. 1 gm/cms, zo = 5. 4 km, f& = 0. 045 and fz = 0. 095. Contours... are in kilometers relative to sea level 56 13 Inversion Model 2. Parameters used were p = 0. 1 gm/cm zo = 5. 4 km, fq = 0. 001 and fz = 0. 002. Contours are in kilometers relative to sea level 58 14 Gravity difference between the anomaly produced by Inversion...

  11. Renewable Chemicals and Advanced Biofuels

    Broader source: Energy.gov [DOE]

    Afternoon Plenary Session: Current Trends in the Advanced Bioindustry Advanced Biofuels & Policy桞rett Lund, Executive Vice President, General Counsel and Secretary, Gevo Inc.

  12. Advanced Materials | More Science | ORNL

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

    Advanced Materials SHARE Advanced Materials ORNL has the nation's most comprehensive materials research program and is a world leader in research that supports the development of...

  13. Institute /or ADVANCED STUDY

    E-Print Network [OSTI]

    OF THE INSTITUTE LIBRARIES 63 INSTITUTE FOR ADVANCED STUDY/PARK CITY MATHEMATICS INSTITUTE 66 MENTORING PROGRAM sustained and has yielded an unsurpassed record of definitive scholarship. Although small in scale

  14. Institute for ADVANCED STUDY

    E-Print Network [OSTI]

    PROGRAM IN THEORETICAL BIOLOGY 103 REPORT OF THE INSTITUTE LIBRARIES 107 INSTITUTE FOR ADVANCED STUDY Study has sustained its founding principle for seventy years. This com- mitment his yielded

  15. The Advanced Manufacturing Partnership

    E-Print Network [OSTI]

    Das, Suman

    ;ve Manufacturing Technologies (led by Dow, Honeywell and MIT) Manufacturing Ins;tutes (led, Honeywell and MIT GOALS To launch public-private ini:a:ves to advance transforma

  16. Advanced Review Geometry optimization

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    Advanced Review Geometry optimization H. Bernhard Schlegel Geometry optimization is an important part of most quantum chemical calcu- lations. This article surveys methods for optimizing equilibrium geometries, lo- cating transition structures, and following reaction paths. The emphasis is on optimizations

  17. Advanced Energy Design Guides

    Energy Savers [EERE]

    hotels up to 80 rooms and 4 stories Advanced Energy Design Guide for Small Hospitals and Health- care Facilities ASHE, ASHRAE, AIA, IES, USGBC, DOE Small healthcare facilities up...

  18. Joint electric power alternatives study. Appendix G. Joint parallel nuclear alternatives study for Russia. Final report

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    The Joint Parallel Nuclear Alternatives Study for Russia (JPNAS) is a parallel study to the Joint Electric Power Alternatives Study (JEPAS). The JPNAS assessed the costs of enhancing the safety level of Russian nuclear power plants (NPPs), decommissioning of RBMK-1000 and first generation VVER-440 units, completion of NPP construction, NPP repowering into fossil fuel plants, and construction of new generation NPPs. In the framework of the JEPAS, the JPNAS provides data on the nuclear sector which is needed to formulate an integrated resources plan and schedule for investments for the development of Russia`s power sector.

  19. Application of robust and inverse optimization in transportation

    E-Print Network [OSTI]

    Nguyen, Thai Dung

    2010-01-01T23:59:59.000Z

    We study the use of inverse and robust optimization to address two problems in transportation: finding the travel times and designing a transportation network. We assume that users choose the route selfishly and the flow ...

  20. Mesh Puppetry: Cascading Optimization of Mesh Deformation with Inverse Kinematics

    E-Print Network [OSTI]

    Desbrun, Mathieu

    approach builds upon traditional rigging by optimizing skeleton position and vertex weights. Keywords: Mesh deformation, nonlinear optimization, inverse kinematics, geometry processing. 1 Introduction. To allow for more global and complex deforma- tion, many authors proposed to cast mesh deformation

  1. Engineering the initial state in broadband population inversion

    E-Print Network [OSTI]

    Bo Y. Chang; Sheokmin Shin; Ignacio R. Sola

    2015-03-03T23:59:59.000Z

    Quantum systems with sublevel structures prevent full population inversion from one manifold of sublevels to the other using strong ultrafast resonant pulses. In this work we explain the mechanism by which this population transfer is blocked. We then develop a novel concept of geometric control, assuming full or partial coherent manipulation within the manifolds and show that by preparing specific coherent superpositions in the initial manifold, full population inversion or full population blockade, {\\it i.e} laser-induced transparency, can be achieved. In particular, by parallel population transfer we show how population inversion between the manifolds can be obtained with minimal pulse area. As the number of sublevels increases, population inversion can overcome the pulse area theorem at the expense of full control over the initial manifold of sublevels.

  2. Nonlinear Adaptive Dynamic Inversion Control for Hypersonic Vehicles

    E-Print Network [OSTI]

    Rollins, Elizabeth

    2013-09-03T23:59:59.000Z

    -of-attack and sideslip angle. To prevent undesirable inlet unstart events, the nonlinear adaptive dynamic inversion control architecture is given the ability to enforce state constraints. Because several phenomena can cause inlet unstarts, the control architecture also...

  3. LINEARIZING NON-LINEAR INVERSE PROBLEMS AND AN ...

    E-Print Network [OSTI]

    to show uniqueness and H鰈der stability for the inverse backscattering ...... that if we replace uT by u on the r.h.s. above, we get the 揹istorted harmonic wave.

  4. Microsoft PowerPoint - High Gradient Inverse Free Electron Laser...

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

    Hi h G di t Hi h i High Gradient High energy gain Inverse Free Electron Laser at BNL P. Musumeci UCLA Department of Physics and Astronomy ATF user meeting April 2-3 2009 Outline...

  5. Strategies for Spectral Profile Inversion using Artificial Neural Networks

    E-Print Network [OSTI]

    H. Socas-Navarro

    2004-10-23T23:59:59.000Z

    This paper explores three different strategies for the inversion of spectral lines (and their Stokes profiles) using artificial neural networks. It is shown that a straightforward approach in which the network is trained with synthetic spectra from a simplified model leads to considerable errors in the inversion of real observations. This problem can be overcome in at least two different ways that are studied here in detail. The first method makes use of an additional pre-processing auto-associative neural network to project the observed profile into the theoretical model subspace. The second method considers a suitable regularization of the neural network used for the inversion. These new techniques are shown to be robust and reliable when applied to the inversion of both synthetic and observed data, with errors typically below $\\sim$100 G.

  6. Modeling and inversion of self-potential data

    E-Print Network [OSTI]

    Minsley, Burke J

    2007-01-01T23:59:59.000Z

    This dissertation presents data processing techniques relevant to the acquisition, modeling, and inversion of self-potential data. The primary goal is to facilitate the interpretation of self-potentials in terms of the ...

  7. The Focused Inverse Method for Linear Logic Kaustuv Chaudhuri

    E-Print Network [OSTI]

    Chaudhuri, Kaustuv

    The Focused Inverse Method for Linear Logic Kaustuv Chaudhuri CMU-CS-06-162 December 4, 2006 Mellon University, or any other entity. Copyright c 2006 Kaustuv Chaudhuri #12;Abstract Linear logic

  8. Inverse Optimization: An Application to the Capacitated Plant Location Problem

    E-Print Network [OSTI]

    Bitran, Gabriel R.

    Inverse optimization refers to the fact that each time a Lagrangean derived from a given mathematical programming problem is solved, it produces an optimal solution to some problem with a different right hand side. This ...

  9. Tests of the Gravitational Inverse-Square Law

    E-Print Network [OSTI]

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

    2003-07-22T23:59:59.000Z

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

  10. COLLOQUIUM: Seismic Imaging and Inversion Based on Spectral-Element...

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

    February 6, 2013, 4:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: Seismic Imaging and Inversion Based on Spectral-Element and Adjoint Methods Professor Jeroen Tromp Princeton...

  11. Advances in constitutive modelling of jointed rock hydro mechanical interactions at laboratory scale

    E-Print Network [OSTI]

    Paris-Sud XI, Universit茅 de

    ) INPL-LAEGO-ENSMN, Parc de Saurupt, Ecole des mines, 54000 Nancy, France) (2) INERIS, Parc de Saurupt. The hydro mechanical modelling performed using 3DEC code can be improved from the previous analysis through d茅bit hydraulique dans la fracture. La mod茅lisation hydrom茅canique r茅alis茅e 脿 l'aide du code 3DEC peut

  12. US India Joint Center for Building Energy Research and Development (CBERD): Advanced HVAC Systems

    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 AprilA group current C3E Ambassadors and U.S.MANAGEMENTNoticeEnergyUS India Project

  13. Scaling and Inverse Scaling in Anisotropic Bootstrap percolation

    E-Print Network [OSTI]

    Aernout C. D. van Enter

    2015-02-03T23:59:59.000Z

    In bootstrap percolation it is known that the critical percolation threshold tends to converge slowly to zero with increasing system size, or, inversely, the critical size diverges fast when the percolation probability goes to zero. To obtain higher-order terms (that is, sharp and sharper thresholds) for the percolation threshold in general is a hard question. In the case of two-dimensional anisotropic models, sometimes correction terms can be obtained from inversion in a relatively simple manner.

  14. Design and analysis of hybrid tubular joints

    E-Print Network [OSTI]

    Stepanian, Christopher John

    1993-01-01T23:59:59.000Z

    composite tube. . Figure 5: a)Patent 4941692 b)Patent 4921283 Figure 6: a)Patent 5028081 b)Patent 4834932 Figure 7: a)Patent 4830409 b)Patent 4755406 Figure 8: a)Patent 4865356 b)Patent 4314718 Figure 9: a)Patent 4236386 b)Patent 4187135 Figure 10: a)Patent... and Analysis of Hybrid Tubular Joints. (December 1993) Christopher John Stepanian, B. S. , Rensselaer Polytechnic Institute Co-Chairs of Advisory Committee: Dr. John Whitcomb Dr. Robert Randall The offshore oil industry is in the midst of an expansion phase...

  15. JIBS | Joint Institute for Biological Sciences | ORNL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 Investigation PeerNOON 2004 February 12, 2004JGIPolarJoint

  16. Joint Implementation Network Feed | 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 Jump to: navigation, searchOf Kilauea Volcano, Hawaii | Wind FarmJeffersonJiminyJoint Implementation

  17. Reasonable conditions for joint probabilities of non-commuting observables

    E-Print Network [OSTI]

    Holger F. Hofmann

    2014-04-25T23:59:59.000Z

    In the operator formalism of quantum mechanics, the density operator describes the complete statistics of a quantum state in terms of d^2 independent elements, where d is the number of possible outcomes for a precise measurement of an observable. In principle, it is therefore possible to express the density operator by a joint probability of two observables that cannot actually be measured jointly because they do not have any common eigenstates. However, such joint probabilities do not refer to an actual measurement outcome, so their definition cannot be based on a set of possible events. Here, I consider the criteria that could specify a unique mathematical form of joint probabilities in the quantum formalism. It is shown that a reasonable set of conditions results in the definition of joint probabilities by ordered products of the corresponding projection operators. It is pointed out that this joint probability corresponds to the quasi probabilities that have recently been observed experimentally in weak measurements.

  18. Maps and inverse maps in open quantum dynamics

    E-Print Network [OSTI]

    Thomas F. Jordan

    2008-07-08T23:59:59.000Z

    Two kinds of maps that describe evolution of states of a subsystem coming from dynamics described by a unitary operator for a larger system, maps defined for fixed mean values and maps defined for fixed correlations, are found to be quite different for the same unitary dynamics in the same situation in the larger system. An affine form is used for both kinds of maps to find necessary and sufficient conditions for inverse maps. All the different maps with the same homogeneous part in their affine forms have inverses if and only if the homogeneous part does. Some of these maps are completely positive; others are not, but the homogeneous part is always completely positive. The conditions for an inverse are the same for maps that are not completely positive as for maps that are. For maps defined for fixed mean values, the homogeneous part depends only on the unitary operator for the dynamics of the larger system, not on any state or mean values or correlations. Necessary and sufficient conditions for an inverse are stated several different ways: in terms of the maps of matrices, basis matrices, density matrices, or mean values. The inverse maps are generally not tied to the dynamics the way the maps forward are. A trace-preserving completely positive map that is unital can not have an inverse that is obtained from any dynamics described by any unitary operator for any states of a larger system.

  19. Development of the bus joint for the ITER Central Solenoid

    SciTech Connect (OSTI)

    Martovetsky, Nicolai N [ORNL] [ORNL; Irick, David Kim [ORNL] [ORNL; Kenney, Steven J [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    The terminations of the Central Solenoid (CS) modules are connected to the bus extensions by joints located outside the CS in the gap between the CS and Torodial Field (TF) assemblies. These joints have very strict space limitations. Low resistance is a common requirement for all ITER joints. In addition, the CS bus joints will experience and must be designed to withstand significant variation in the magnetic field of several tenths of a Tesla per second during initiation of plasma. The joint resistance is specified to be less than 4 nOhm. The joints also have to be soldered in the field and designed with the possibility to be installed and dismantled in order to allow cold testing in the cold test facility. We have developed coaxial joints that meet these requirements and have demonstrated the feasibility to fabricate and assemble them in the vertical configuration. We introduced a coupling cylinder with superconducting strands soldered to the surface of the cable that can be installed in the ITER assembly hall and at the Cold Test Facility. This cylinder serves as a transition area between the CS module and the bus extension. We made two racetrack samples and tested four bus joints in our Joint Test Apparatus. Resistance of the bus joints was measured by a decay method and by a microvoltmeter; the value of the current was measured by the Hall probes. This measurement method was verified in the previous tests. The resistance of the joints varied insignificantly from 1.5 to 2 nOhm. One of the challenges associated with a soldered joint is the inability to use corrosive chemicals that are difficult to clean. This paper describes our development work on cable preparation, chrome removal, compaction, soldering, and final assembly and presents the test results.

  20. Meeting Energy Reduction Requirements at Joint Base San Antonio

    E-Print Network [OSTI]

    Dschuden, B.; Thomas, F.

    2013-01-01T23:59:59.000Z

    One Team, One Mission: Your Success! The Premier Joint Base in the Department of Defense! Joint Base San Antonio and Energy Program 18 December 2013 Bruce Dschuden, Frank Thomas JBSA Resource Efficiency Managers ESL-KT-13-12-25 CATEE 2013...: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 One Team, One Mission: Your Success! The Premier Joint Base in the Department of Defense! Presenters Bruce Dschuden, CEM, CSDP, CEA Sain Engineering Associates REM...

  1. A Model to Assess Fatigue at Joint-Level Using the Half-Joint Concept

    E-Print Network [OSTI]

    Rodr韌uez, Inmaculada

    and simulations generated by our animation environment. 1. Introduction The human body is continuously under b Virtual Reality Laboratory. Swiss Federal Institute of Technology Lausanne, Switzerland In this paper we focus on the modeling and evaluation of performance factors as human fatigue at joint level. We

  2. Y.ShimomuraY.Shimomura ITER Joint Central TeamITER Joint Central Team

    E-Print Network [OSTI]

    Structure #12;ICRF All metal Vacuum Transmission Line Support 路 Avoid dielectric material 路 Cool through SLIP JOINT COOLING IN COOLING OUT mm VTL GETTER PUMP #12;Mode Converter Support Structure Standard Novgorod and CRPP Lausanne ECRH/ECCD for ITER: ITER-task: Remote steering antenna for ECRH/ECCD #12

  3. Joint Capability Technology Demonstration (JCTD) Industry Day Agenda

    Broader source: Energy.gov [DOE]

    Agenda outlines the activities of the 2014 Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Joint Capability Technology Demonstration (JCTD) Industry Day in Fort Carson, Colorado.

  4. assisted ac joint: Topics by E-print Network

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

    BRAIN INJURY D Reinkensmeyer, David J. 26 Basic Business Structures: Sole Proprietor, Joint Operating Agreements and Partnerships Texas A&M University - TxSpace Summary: Basic...

  5. artificial hip joint: Topics by E-print Network

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

    24 25 Next Page Last Page Topic Index 1 School of Architecture, Design and the Built Environment Project Title: Artificial bone for prosthetic hip joints Computer Technologies and...

  6. Geothermal: Sponsored by OSTI -- Joint Egypt/United States report...

    Office of Scientific and Technical Information (OSTI)

    Joint EgyptUnited States report on EgyptUnited States cooperative energy assessment. Volume 4 of 5 Vols. Annexes 6--10...

  7. Russia-Joint Programme on Resource Efficient and Cleaner Production...

    Open Energy Info (EERE)

    UNIDO and UNEP launched in 1994 a joint programme to establish National Cleaner Production CentresProgrammes (NCPCsNCPPs). An independent evaluation conducted in 20078...

  8. Joint Genome Institute Progress Report 2002-2005

    SciTech Connect (OSTI)

    Gilbert, David

    2005-10-03T23:59:59.000Z

    Progress report covering activities at the DOE-Joint Genome Institute in Walnut Creek, California for the period 2002-2005.

  9. addition predicts joint: Topics by E-print Network

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

    Summary: Joint Channel Estimation and Prediction for OFDM Systems Ian C. Wong and Brian L. Evans Wireless OFDM improves the system throughput by adjusting transmission...

  10. Joint Statement by President Barack Obama of the United States...

    Energy Savers [EERE]

    Barack Obama of the United States of America and Prime Minister Stephen Harper of Canada on Accelerating Economic Recovery and Job Creation Joint Statement by President Barack...

  11. adhesive composite joints: Topics by E-print Network

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

    1 Ultrasonic Imaging Techniques to Evaluate Quality of Fiber Reinforced Composite Materials and their Adhesive Joints CiteSeer Summary: To date, fiber reinforced composite...

  12. JOINT DEPARTMENT OF COMMERCE AND DEPARTMENT OF ENERGY SMART CITIES...

    Office of Environmental Management (EM)

    JOINT DEPARTMENT OF COMMERCE AND DEPARTMENT OF ENERGY SMART CITIES - SMART GROWTH BUSINESS DEVELOPMENT MISSION TO CHINA April 12-17, 2015 I. MISSION DESCRIPTION The United States...

  13. United States and France Sign Joint Statement on Civil Liability...

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

    Statement by U.S. Secretary of Energy, Ernest Moniz, and French Minister of Ecology, Sustainable Development, and Energy, Philippe Martin. "The signing of this joint statement...

  14. Sandia Energy - "Bionic" Liquids from Lignin: Joint BioEnergy...

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

    Liquids from Lignin: Joint BioEnergy Institute Results Pave the Way for Closed-Loop Biofuel Refineries Home Renewable Energy Energy Transportation Energy Biofuels Facilities...

  15. ankle joint stiffness: Topics by E-print Network

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

    displacements of the robot's end-effector subject Paris-Sud XI, Universit de 11 Cartesian stiffness matrix of manipulators with passive joints: analytical approach CERN...

  16. ankle joint loading: Topics by E-print Network

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

    dimensional characteristics of each surface is developed. Artificial joint of granite surfaces are measured,processed, analyzed and three dimensional approaches are carried out...

  17. Joint Maintenance Status Report of Potomac Electric Power Company...

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

    amd PJM Interconnection, LLC Docket No. EO-05-01: Potomac Electric Power Company ("Pepco") and PJM Interconnection, L.L.C. ("PJM") hereby jointly submit this Maintenance...

  18. 2010 Joint Effectiveness Review of Hanford Bldg 336 Corrective...

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

    Joint Assessment of the Effectiveness of Corrective Actions for the Building 336 Accident, July 2010 The U.S. Department of Energy, Office of Independent Oversight, within the...

  19. Inverse problem for bremsstrahlung radiation K. E. Voss and N. J. Fisch

    E-Print Network [OSTI]

    , an analytic inversion has been found that yields the velocity distribution of superthermal electrons given

  20. Inversion of TEM sounding data using the steepest descent and the conjugate gradients methods

    E-Print Network [OSTI]

    Alsabti, Abdallah S

    2001-01-01T23:59:59.000Z

    -determined problem, the inversion for layer thicknesses proved to be very reliable. I suggested a strategy to use both inversion types in mapping horizontal layers. The under-determined problem was solved by a regularized inversion. A total of 48 inversion runs...

  1. INVERSE SPECTRAL AND SCATTERING THEORY FOR THE HALF-LINE LEFT DEFINITE

    E-Print Network [OSTI]

    INVERSE SPECTRAL AND SCATTERING THEORY FOR THE HALF-LINE LEFT DEFINITE STURM-LIOUVILLE PROBLEM C will prove some uniqueness results for inverse spec- tral theory and inverse scattering for the left definite is via the inverse spectral theory for the left definite problem, which also is not very well developed

  2. Advanced Worker Protection System

    SciTech Connect (OSTI)

    NONE

    1996-04-01T23:59:59.000Z

    The Advanced Worker Protection System (AWPS) is a liquid-air-based, self-contained breathing and cooling system with a duration of 2 hrs. AWPS employs a patented system developed by Oceaneering Space Systems (OSS), and was demonstrated at their facility in Houston, TX as well as at Kansas State University, Manhattan. The heart of the system is the life-support backpack that uses liquid air to provide cooling as well as breathing gas to the worker. The backpack is combined with advanced protective garments, an advanced liquid cooling garment (LCG), a respirator, and communications and support equipment. The prototype unit development and testing under Phase 1 has demonstrated that AWPS has the ability to meet performance criteria. These criteria were developed with an understanding of both the AWPS capabilities and the DOE decontamination and decommissioning (D and D) activities protection needs.

  3. Advanced Hydride Laboratory

    SciTech Connect (OSTI)

    Motyka, T.

    1989-01-01T23:59:59.000Z

    Metal hydrides have been used at the Savannah River Tritium Facilities since 1984. However, the most extensive application of metal hydride technology at the Savannah River Site is being planned for the Replacement Tritium Facility, a $140 million facility schedules for completion in 1990 and startup in 1991. In the new facility, metal hydride technology will be used to store, separate, isotopically purify, pump, and compress hydrogen isotopes. In support of the Replacement Tritium Facility, a $3.2 million, cold,'' process demonstration facility, the Advanced Hydride Laboratory began operation in November of 1987. The purpose of the Advanced Hydride Laboratory is to demonstrate the Replacement Tritium Facility's metal hydride technology by integrating the various unit operations into an overall process. This paper will describe the Advanced Hydride Laboratory, its role and its impact on the application of metal hydride technology to tritium handling.

  4. Advanced Hydride Laboratory

    SciTech Connect (OSTI)

    Motyka, T.

    1989-12-31T23:59:59.000Z

    Metal hydrides have been used at the Savannah River Tritium Facilities since 1984. However, the most extensive application of metal hydride technology at the Savannah River Site is being planned for the Replacement Tritium Facility, a $140 million facility schedules for completion in 1990 and startup in 1991. In the new facility, metal hydride technology will be used to store, separate, isotopically purify, pump, and compress hydrogen isotopes. In support of the Replacement Tritium Facility, a $3.2 million, ``cold,`` process demonstration facility, the Advanced Hydride Laboratory began operation in November of 1987. The purpose of the Advanced Hydride Laboratory is to demonstrate the Replacement Tritium Facility`s metal hydride technology by integrating the various unit operations into an overall process. This paper will describe the Advanced Hydride Laboratory, its role and its impact on the application of metal hydride technology to tritium handling.

  5. Report on the SNL/NSF International Workshop on Joint Mechanics, Arlington, Virginia, 16-18 October 2006.

    SciTech Connect (OSTI)

    Ewins, David J. (Imperial College, London England, UK); Bergman, Lawrence A. (University of Illinois, Urbana, IL); Segalman, Daniel Joseph

    2007-11-01T23:59:59.000Z

    The NSF/SNL joint mechanics workshop, held in Arlington, Virginia, 16-18 October, 2006, attempted to assess the current state of the art for modeling joint mechanics for the purpose of structural dynamics calculation, to identify the underlying physics issues that must be addressed to advance the field, and to propose a path forward. Distinguished participants from several countries representing research communities that focus on very different length and time scales identified multiple challenges in bridging those scales. Additionally, two complementary points of view were developed for addressing those challenges. The first approach - the 'bottom-up' perspective - attempts to bridge scales by starting from the smallest length scale and working up. The other approach starts at the length scale of application and attempts to deduce mechanics at smaller length scales through reconciliation with laboratory observation. Because interface physics is a limiting element of predictive simulation in defense and transportation, this issue will be of continuing importance for the foreseeable future.

  6. Advanced fuel chemistry for advanced engines.

    SciTech Connect (OSTI)

    Taatjes, Craig A.; Jusinski, Leonard E.; Zador, Judit; Fernandes, Ravi X.; Miller, James A.

    2009-09-01T23:59:59.000Z

    Autoignition chemistry is central to predictive modeling of many advanced engine designs that combine high efficiency and low inherent pollutant emissions. This chemistry, and especially its pressure dependence, is poorly known for fuels derived from heavy petroleum and for biofuels, both of which are becoming increasingly prominent in the nation's fuel stream. We have investigated the pressure dependence of key ignition reactions for a series of molecules representative of non-traditional and alternative fuels. These investigations combined experimental characterization of hydroxyl radical production in well-controlled photolytically initiated oxidation and a hybrid modeling strategy that linked detailed quantum chemistry and computational kinetics of critical reactions with rate-equation models of the global chemical system. Comprehensive mechanisms for autoignition generally ignore the pressure dependence of branching fractions in the important alkyl + O{sub 2} reaction systems; however we have demonstrated that pressure-dependent 'formally direct' pathways persist at in-cylinder pressures.

  7. Joint Institute for Nanoscience Annual Report 2004

    SciTech Connect (OSTI)

    Baer, Donald R.; Campbell, Charles

    2005-02-01T23:59:59.000Z

    Due to the inherently interdisciplinary nature of nanoscience and nanotechnology, research in this arena is often significantly enhanced through creative cooperative activities. The Joint Institute for Nanoscience (JIN) is a venture of the University of Washington (UW) and Pacific Northwest National Laboratory (PNNL) to encourage and enhance high impact and high quality nanoscience and nanotechnology research that leverages the strengths and capabilities of both institutions, and to facilitate education in these areas. This report summarizes JIN award activities that took place during fiscal year 2004 and provides a historical list of JIN awardees, their resulting publications, and JIN-related meetings. Major portions of the JIN efforts and resources are dedicated to funding graduate students and postdoctoral research associates to perform research in collaborations jointly directed by PNNL staff scientists and UW professors. JIN fellowships are awarded on the basis of applications that include research proposals. They have been very successful in expanding collaborations between PNNL and UW, which have led to many excellent joint publications and presentations and enhanced the competitiveness of both institutions for external grant funding. JIN-based interactions are playing a significant role in creating new research directions and reshaping existing research programs at both the UW and PNNL. The JIN also co-sponsors workshops on Nanoscale Science and Technology, four of which have been held in Seattle and one in Richland. In addition to involving PNNL staff in various UW nanoscience courses and seminars, a National Science Foundation grant, Development of UW-PNL Collaborative Curriculums in Nano-Science and Technology, has allowed the development of three intensive short courses that are taught by UW faculty, PNNL staff, and faculty from other institutions, including Washington State University, the University of Idaho, Stanford University, and the University of Alaska. The JIN agreement recognizes that cooperation beyond UW and PNNL is highly valuable. Starting in early 2003, efforts were initiated to form a regional communication link called the Northwest Nanoscience and Nanotechnology Network (N4). In concept, N4 is a tool to encourage communication and help identify regional resources and nanoscience and technology activities.

  8. Microstructure, Mechanical Behavior, and Clinical Trade-offs in Ultra-High Molecular Weight Polyethylene for Total Joint Replacement

    E-Print Network [OSTI]

    Atwood, Sara Anne

    2010-01-01T23:59:59.000Z

    components for total joint replacement. J Bone Joint Surgcontemporary total knee replacements. Clin Orthop Relat Res(wear in total joint replacement? J Am Acad Orthop Surg, 16

  9. Amsterdam Oxford Joint Rescue Forces Team Description Paper

    E-Print Network [OSTI]

    Visser, Arnoud

    Amsterdam Oxford Joint Rescue Forces Team Description Paper Virtual Robot competition Rescue van Weelden1 , Chaim Bastiaan1 , Niels Out1 , Olaf Zwennes1 , Sev麓aztian Soffia Ot麓arola1 , Julian de://www.jointrescueforces.eu Abstract. With the progress made in active exploration, the robots of the Joint Rescue Forces are capable

  10. Time- and temperature-dependent failures of a bonded joint

    SciTech Connect (OSTI)

    Sihn, Sangwook; Miyano, Yasushi; Tsai, S.W. [Stanford Univ., Palo Alto, CA (United States)

    1997-07-01T23:59:59.000Z

    Time and temperature dependent properties of a tubular lap bonded joint are reported. The joint bonds a cast iron rod and a composite pipe together with an epoxy type of an adhesive material containing chopped glass fiber. A new fabrication method is proposed.

  11. IU School of Informatics Policy on Joint Appointments

    E-Print Network [OSTI]

    Zhou, Yaoqi

    IU School of Informatics Policy on Joint Appointments Revised 颅 11/11/02 There may be times when joint appointments for faculty are made between IU School of Informatics and other schools or units within Indiana University. This policy summarizes the expectations of the IU School of Informatics

  12. Australia and China A Joint Report on the Bilateral Relationship

    E-Print Network [OSTI]

    Political People-to-people links Education Science and technology Energy, the environment and climate change#12;Australia and China A Joint Report on the Bilateral Relationship #12;AUSTRALIA A Joint Report on the Bilateral Relationship #12;Australian Centre on China in the World College of Asia

  13. 2006 TRANSPORTATION TOMORROW SURVEY JOINT PROGRAM IN TRANSPORTATION

    E-Print Network [OSTI]

    Toronto, University of

    2006 TRANSPORTATION TOMORROW SURVEY JOINT PROGRAM IN TRANSPORTATION UNIVERSITY OF TORONTO 2006 Transportation Tomorrow Survey Data Presentation #12;2006 TRANSPORTATION TOMORROW SURVEY JOINT PROGRAM IN TRANSPORTATION UNIVERSITY OF TORONTO City of Hamilton City of Kawartha Lakes City of Guelph City of Brantford

  14. ARGONNE JOINT STAFF EMPLOYMENT FORM Effective 07/2010

    E-Print Network [OSTI]

    He, Chuan

    . ARGONNE JOINT STAFF EMPLOYMENT FORM Effective 07/2010 Page 1 of 1 Questions about this form Hawaiian/Pacific Islander Check Delivery Code ___________ Argonne Joint Staff Appointment -- Non ________________________________________________ Vice President for Research Date and for Argonne National Laboratory HR: INSTRUCTIONS: This form should

  15. Majorana Demonstrator Bolted Joint Mechanical and Thermal Analysis

    SciTech Connect (OSTI)

    Aguayo Navarrete, Estanislao; Reid, Douglas J.; Fast, James E.

    2012-06-01T23:59:59.000Z

    The MAJORANA DEMONSTRATOR is designed to probe for neutrinoless double-beta decay, an extremely rare process with a half-life in the order of 1026 years. The experiment uses an ultra-low background, high-purity germanium detector array. The germanium crystals are both the source and the detector in this experiment. Operating these crystals as ionizing radiation detectors requires having them under cryogenic conditions (below 90 K). A liquid nitrogen thermosyphon is used to extract the heat from the detectors. The detector channels are arranged in strings and thermally coupled to the thermosyphon through a cold plate. The cold plate is joined to the thermosyphon by a bolted joint. This circular plate is housed inside the cryostat can. This document provides a detailed study of the bolted joint that connects the cold plate and the thermosyphon. An analysis of the mechanical and thermal properties of this bolted joint is presented. The force applied to the joint is derived from the torque applied to each one of the six bolts that form the joint. The thermal conductivity of the joint is measured as a function of applied force. The required heat conductivity for a successful experiment is the combination of the thermal conductivity of the detector string and this joint. The thermal behavior of the joint is experimentally implemented and analyzed in this study.

  16. Microstructural evolution of eutectic Au-Sn solder joints

    SciTech Connect (OSTI)

    Song, Ho Geon

    2002-05-31T23:59:59.000Z

    Current trends toward miniaturization and the use of lead(Pb)-free solder in electronic packaging present new problems in the reliability of solder joints. This study was performed in order to understand the microstructure and microstructural evolution of small volumes of nominally eutectic Au-Sn solder joints (80Au-20Sn by weight), which gives insight into properties and reliability.

  17. Joint Source-Channel Coding via Turbo Codes

    E-Print Network [OSTI]

    Alajaji, Fady

    Joint Source-Channel Coding via Turbo Codes by Guang-Chong Zhu A dissertation submitted coding. One of the most exciting break- throughs in channel coding is the invention of Turbo codes, whose- tigate three joint source-channel coding issues in the context of Turbo codes. In the #12;rst part

  18. Joint Synchronization and Decoding Exploiting the Turbo Principle

    E-Print Network [OSTI]

    Regalia, Phillip A.

    Joint Synchronization and Decoding Exploiting the Turbo Principle John M. Walsh and C. Richard麓el麓ecommunications/GET 91011 Evry cedex France Abstract-- This paper investigates turbo methods for joint synchronization and decoding in pulse amplitude modulated (PAM) systems. We begin with a brief review of the turbo principle

  19. BUCKLING OF DOUBLE BELLOWS EXPANSION JOINTS UNDER INTERNAL PRESSURE

    E-Print Network [OSTI]

    Newland, David E.

    of the bellows and the bellows supporting structure. To reduce the susceptibility to buckling, lateral supports270 BUCKLING OF DOUBLE BELLOWS EXPANSION JOINTS UNDER INTERNAL PRESSURE By D. E. Newland* Corrugated bellows expansion joints may buckle under internal pressure in the same way as an elasticstrut may

  20. Gills Onions Advanced Energy

    E-Print Network [OSTI]

    !!! One-third incoming onions discarded as tail, top, and peel! #12;The Solution... Advanced Energy honor from the American CouncilThe highest honor from the American Council of Engineering Companies Residential & Food Service Anaerobic Digestion Fats, Oil, and Grease (FOG) from Food Service Anaerobic Methane

  1. Advanced Test Reactor Tour

    SciTech Connect (OSTI)

    Miley, Don

    2011-01-01T23:59:59.000Z

    The Advanced Test Reactor at Idaho National Laboratory is the foremost nuclear materials test reactor in the world. This virtual tour describes the reactor, how experiments are conducted, and how spent nuclear fuel is handled and stored. For more information about INL research, visit http://www.facebook.com/idahonationallaboratory.

  2. Search Asia Advanced Search

    E-Print Network [OSTI]

    on state-run forestry companies. Illegal logging activities have cost the Indonesian government some US$600Asia Times Search Asia Times Advanced Search Southeast Asia Indonesia looks to curb log smuggling to discuss the issue of log smuggling, Forestry Minister M Prakosa said. "We will hold bilateral dialogues

  3. Advanced fossil energy utilization

    SciTech Connect (OSTI)

    Shekhawat, D.; Berry, D.; Spivey, J.; Pennline, H.; Granite, E.

    2010-01-01T23:59:59.000Z

    This special issue of Fuel is a selection of papers presented at the symposium Advanced Fossil Energy Utilization co-sponsored by the Fuels and Petrochemicals Division and Research and New Technology Committee in the 2009 American Institute of Chemical Engineers (AIChE) Spring National Meeting Tampa, FL, on April 2630, 2009.

  4. Advanced Test Reactor Tour

    ScienceCinema (OSTI)

    Miley, Don

    2013-05-28T23:59:59.000Z

    The Advanced Test Reactor at Idaho National Laboratory is the foremost nuclear materials test reactor in the world. This virtual tour describes the reactor, how experiments are conducted, and how spent nuclear fuel is handled and stored. For more information about INL research, visit http://www.facebook.com/idahonationallaboratory.

  5. Advances in Lung Volume

    E-Print Network [OSTI]

    Jones, Michelle

    Advances in Lung Volume Reduction Surgery The Ohio University Medical Center Lung Volume Reduction LungVolumeReductionSurgery Spring 2010 2010 The Ohio State University Medical Center 04 Consult Ohio State's #12;The Ohio State University Medical Center Lung Volume Reduction Surgery Patient

  6. Image Appraisal for 2D and 3D Electromagnetic Inversion

    SciTech Connect (OSTI)

    Alumbaugh, D.L.; Newman, G.A.

    1999-01-28T23:59:59.000Z

    Linearized methods are presented for appraising image resolution and parameter accuracy in images generated with two and three dimensional non-linear electromagnetic inversion schemes. When direct matrix inversion is employed, the model resolution and posterior model covariance matrices can be directly calculated. A method to examine how the horizontal and vertical resolution varies spatially within the electromagnetic property image is developed by examining the columns of the model resolution matrix. Plotting the square root of the diagonal of the model covariance matrix yields an estimate of how errors in the inversion process such as data noise and incorrect a priori assumptions about the imaged model map into parameter error. This type of image is shown to be useful in analyzing spatial variations in the image sensitivity to the data. A method is analyzed for statistically estimating the model covariance matrix when the conjugate gradient method is employed rather than a direct inversion technique (for example in 3D inversion). A method for calculating individual columns of the model resolution matrix using the conjugate gradient method is also developed. Examples of the image analysis techniques are provided on 2D and 3D synthetic cross well EM data sets, as well as a field data set collected at the Lost Hills Oil Field in Central California.

  7. Finite element analysis of human joints

    SciTech Connect (OSTI)

    Bossart, P.L.; Hollerbach, K.

    1996-09-01T23:59:59.000Z

    Our work focuses on the development of finite element models (FEMs) that describe the biomechanics of human joints. Finite element modeling is becoming a standard tool in industrial applications. In highly complex problems such as those found in biomechanics research, however, the full potential of FEMs is just beginning to be explored, due to the absence of precise, high resolution medical data and the difficulties encountered in converting these enormous datasets into a form that is usable in FEMs. With increasing computing speed and memory available, it is now feasible to address these challenges. We address the first by acquiring data with a high resolution C-ray CT scanner and the latter by developing semi-automated method for generating the volumetric meshes used in the FEM. Issues related to tomographic reconstruction, volume segmentation, the use of extracted surfaces to generate volumetric hexahedral meshes, and applications of the FEM are described.

  8. Joint Institute for Nanoscience Annual Report 2003

    SciTech Connect (OSTI)

    Baer, Donald R.; Campbell, Charles

    2004-02-01T23:59:59.000Z

    The Joint Institute for Nanoscience (JIN) is a cooperative venture of the University of Washington and Pacific Northwest National Laboratory to encourage and enhance high-impact and high-quality nanoscience and nanotechnology of all types. This first annual report for the JIN summarizes activities beginning in 2001 and ending at the close of fiscal year 2003 and therefore represents somewhat less than two years of activities. Major portions of the JIN resources are dedicated to funding graduate students and postdoctoral research associates to perform research in collaborations jointly directed by Pacific Northwest National Laboratory (PNNL) staff scientists and University of Washington (UW) professors. These fellowships were awarded on the basis of applications that included research proposals. JIN co-sponsors an annual Nanoscale Science and Technology Workshop held in Seattle. In addition to involving PNNL staff in various UW nanoscience courses and seminars, a National Science Foundation grant Development of UW-PNL Collaborative Curriculums in Nano-Science and Technology has allowed the development of three intensive short courses that are taught by UW faculty, PNNL staff, and faculty from other institutions, including Washington State University, the University of Idaho, Stanford University, and the University of Alaska. The initial JIN agreement recognized that expansion of cooperation beyond UW and PNNL would be highly valuable. Starting in early 2003, efforts were initiated to form a regional communication link called the Northwest Nanoscience and Nanotechnology Network (N?). In concept, N? is a tool to encourage communication and help identify regional resources and nanoscience and technology activities.

  9. Innovative use of adhesive interface characteristics to nondestructively quantify the strength of bonded joints.

    SciTech Connect (OSTI)

    Roach, Dennis Patrick; Duvall, Randy L.; Rackow, Kirk A.

    2010-05-01T23:59:59.000Z

    Advances in structural adhesives have permitted engineers to contemplate the use of bonded joints in areas that have long been dominated by mechanical fasteners and welds. Although strength, modulus, and toughness have been improved in modern adhesives, the typical concerns with using these polymers still exist. These include concerns over long-term durability and an inability to quantify bond strength (i.e., identify weak bonds) in adhesive joints. Bond deterioration in aging structures and bond strength in original construction are now critical issues that require more than simple flaw detection. Whether the structure involves metallic or composite materials, it is necessary to extend inspections beyond the detection of disbond flaws to include an assessment of the strength of the bond. Use of advanced nondestructive inspection (NDI) methods to measure the mechanical properties of a bonded joint and associated correlations with post-inspection failure tests have provided some clues regarding the key parameters involved in assessing bond strength. Recent advances in ultrasonic- and thermographic-based inspection methods have shown promise for measuring such properties. Specialized noise reduction and signal enhancement schemes have allowed thermographic interrogations to image the subtle differences between bond lines of various strengths. Similarly, specialized ultrasonic (UT) inspection techniques, including laser UT, guided waves, UT spectroscopy, and resonance methods, can be coupled with unique signal analysis algorithms to accurately characterize the properties of weak interfacial bonds. The generation of sufficient energy input levels to derive bond strength variations, the production of sufficient technique sensitivity to measure such minor response variations, and the difficulty in manufacturing repeatable weak bond specimens are all issues that exacerbate these investigations. The key to evaluating the bond strength lies in the ability to exploit the critical characteristics of weak bonds such as nonlinear responses, poor transmission of shear waves, and changes in response to stiffness-based interrogations. This paper will present several ongoing efforts that have identified promising methods for quantifying bond strength and discuss some completed studies that provide a foundation for further evolution in weak bond assessments.

  10. Joint Use School Partnerships in California: Strategies to Enhance Schools and Communities

    E-Print Network [OSTI]

    Vincent, Jeffrey M; Cooper, Tamar

    2008-01-01T23:59:59.000Z

    implementing,燼nd爋peratingjoint爑se partnerships爄s爐o燼pprove thejoint爑se爋perating燼greement. 牋 CUSD燼nd爋f燽uilding燼nd爋perating爐hesejoint use爁acilities. 8

  11. Elastic-plastic analysis of the transition divertor joint for high performance divertor target plate

    E-Print Network [OSTI]

    Navaei, Dara

    2011-01-01T23:59:59.000Z

    power plant starts operating, the joints temperature neverabove the operating temperature of the joints (600-700 癈).above the operating temperature of the joints (600 癈 to 700

  12. Coordinate system dependence of muscle forces predicted using optimization methods in musculoskeletal joints

    E-Print Network [OSTI]

    Pierce, Janine E. (Janine Elizabeth), 1980-

    2004-01-01T23:59:59.000Z

    Optimization methods are widely used to predict in-vivo muscle forces in musculoskeletal joints. Moment equilibrium at the joint center (usually defined as the origin of the joint coordinate system) has been used as a ...

  13. Analysis of drilling fluid rheology and tool joint effect to reduce errors in hydraulics calculations

    E-Print Network [OSTI]

    Viloria Ochoa, Marilyn

    2006-10-30T23:59:59.000Z

    .........................................................................45 V HYDRAULICS ....................................................................................49 5.1 Friction Pressure Loss Calculation..........................................50 VI TOOL JOINT... ......................................................................................71 6.1 Weld-On Tool Joint..................................................................71 VII STUDY APPROACHES TO ESTIMATE PRESSURE LOSSES BY CORRECTING FOR TOOL JOINT LOSSES .....................................77 7...

  14. Temperature inversion in long-range interacting systems

    E-Print Network [OSTI]

    Teles, Tarcisio N; Casetti, Lapo

    2015-01-01T23:59:59.000Z

    Temperature inversions occur in nature, e.g., in the solar corona and in interstellar molecular clouds: somewhat counterintuitively, denser parts of the system are colder than dilute ones. We propose a simple and appealing mechanism to spontaneously generate temperature inversions in systems with long-range interactions, by preparing them in inhomogeneous thermal equilibrium states and then applying an impulsive perturbation. In similar situations, short-range systems would typically relax to another thermal equilibrium, with uniform temperature profile. By contrast, in long-range systems, the interplay between wave-particle interaction and spatial inhomogeneity drives the system to nonequilibrium stationary states that generically exhibit temperature inversion. Our work underlines the crucial role the range of interparticle interaction plays in determining the nature of steady states attained when macroscopic systems are brought out of thermal equilibrium.

  15. Parameterization of geophysical inversion model using particle clustering

    E-Print Network [OSTI]

    Yang, Dikun

    2015-01-01T23:59:59.000Z

    This paper presents a new method of constructing physical models in a geophysical inverse problem, when there are only a few possible physical property values in the model and they are reasonably known but the geometry of the target is sought. The model consists of a fixed background and many small "particles" as building blocks that float around in the background to resemble the target by clustering. This approach contrasts the conventional geometric inversions requiring the target to be regularly shaped bodies, since here the geometry of the target can be arbitrary and does not need to be known beforehand. Because of the lack of resolution in the data, the particles may not necessarily cluster when recovering compact targets. A model norm, called distribution norm, is introduced to quantify the spread of particles and incorporated into the objective function to encourage further clustering of the particles. As proof of concept, 1D magnetotelluric inversion is used as example. My experiments reveal that the ...

  16. Lepton Number Violation within the Conformal Inverse Seesaw

    E-Print Network [OSTI]

    Humbert, Pascal; Patra, Sudhanwa; Smirnov, Juri

    2015-01-01T23:59:59.000Z

    We present a novel framework within the conformal inverse seesaw scheme allowing large lepton number violation while the neutrino mass formula is still governed by the low-scale inverse seesaw mechanism. This model includes new contributions to rare low-energy lepton number violating processes like neutrinoless double beta decay. We find that the lifetime for this rare process due to heavy sterile neutrinos can saturate current experimental limits. The characteristic collider signature of the present conformal inverse seesaw scheme includes, same-sign dilepton plus two jets and same-sign dilepton plus four jets. Finally, we comment on the testability of the model at the Large Hadron Collider since there are new scalars, new fermions and an extra neutral gauge boson with masses around few 100 GeV to few TeV.

  17. Sideband generation of transient lasing without population inversion

    E-Print Network [OSTI]

    Luqi Yuan; Da-Wei Wang; Christopher O'Brien; Anatoly A. Svidzinsky; Marlan O. Scully

    2014-08-21T23:59:59.000Z

    We suggest a method to generate coherent short pulses by generating a frequency comb using lasing without inversion in the transient regime. We use a universal method to study the propagation of a pulse in various spectral regions through an active medium that is strongly driven on a low-frequency transition on a time scale shorter than the decoherence time. The results show gain on the sidebands at different modes can be produced even if there is no initial population inversion prepared. Besides the production of ultra-short pulse this frequency comb may have applications towards making short-wavelength or Tera-hertz lasers.

  18. Herty Advanced Materials Development Center

    Broader source: Energy.gov [DOE]

    Session 1-B: Advancing Alternative Fuels for the Military and Aviation Sector Breakout Session 1: New Developments and Hot Topics Jill Stuckey, Acting Director, Herty Advanced Materials Development Center

  19. ADVANCE! Leadership Experience Project Guidelines

    E-Print Network [OSTI]

    Hone, James

    ADVANCE! Leadership Experience Project Guidelines Fieldwork Practicum Description: The fieldwork component of the ADVANCE! leadership program offers students the opportunity to integrate theory exposure to that industry. Together, they design a leadership project in which the student takes an active

  20. Advanced Photon Source Upgrade Project

    ScienceCinema (OSTI)

    Mitchell, John; Gibson, Murray; Young, Linda; Joachimiak, Andrzej

    2013-04-19T23:59:59.000Z

    Upgrade to Advanced Photon Source announced by Department Of Energy. Read more: http://go.usa.gov/ivZ

  1. artificial atlanto-odontoid joint: Topics by E-print Network

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

    In 1981,193 joint ventures with the par- ticipation of Japanese capital were operating in 47 nations 111 Joint Degrees & Promotion towards European Students Computer...

  2. Thermal and mechanical joints to cryo-cooled silicon monochromator crystals

    E-Print Network [OSTI]

    MacDowell, A.; Fakra, S.; Morrison, G.

    2006-01-01T23:59:59.000Z

    resistance of the joint. The operating temperature of 150 ooperating temperature range was as small as possible in an attempt to reduce the strain in the joint and

  3. Joint Statement on Future U.S.-Russia Nuclear Energy and Nonproliferat...

    Energy Savers [EERE]

    Joint Statement on Future U.S.-Russia Nuclear Energy and Nonproliferation Collaboration Following Russian Delegation Visit to the United States Joint Statement on Future...

  4. Re-Inversion of Surface Electrical Resistivity Tomography Data from the Hanford Site B-Complex

    SciTech Connect (OSTI)

    Johnson, Timothy C.; Wellman, Dawn M.

    2013-05-01T23:59:59.000Z

    This report documents the three-dimensional (3D) inversion results of surface electrical resistivity tomography (ERT) data collected over the Hanford Site B-Complex. The data were collected in order to image the subsurface distribution of electrically conductive vadose zone contamination resulting from both planned releases of contamination into subsurface infiltration galleries (cribs, trenches, and tile fields), as well as unplanned releases from the B, BX, and BY tank farms and/or associated facilities. Electrically conductive contaminants are those which increase the ionic strength of pore fluids compared to native conditions, which comprise most types of solutes released into the subsurface B-Complex. The ERT data were collected and originally inverted as described in detail in report RPP-34690 Rev 0., 2007, which readers should refer to for a detailed description of data collection and waste disposal history. Although the ERT imaging results presented in that report successfully delineated the footprint of vadose zone contamination in areas outside of the tank farms, imaging resolution was not optimized due to the inability of available inversion codes to optimally process the massive ERT data set collected at the site. Recognizing these limitations and the potential for enhanced ERT characterization and time-lapse imaging at contaminated sites, a joint effort was initiated in 2007 by the U.S. Department of Energy Office of Science (DOE-SC), with later support by the Office of Environmental Management (DOE-EM), and the U.S. Department of Defense (DOD), to develop a high-performance distributed memory parallel 3D ERT inversion code capable of optimally processing large ERT data sets. The culmination of this effort was the development of E4D (Johnson et al., 2010,2012) In 2012, under the Deep Vadose Zone Applied Field Research Initiative (DVZ-AFRI), the U.S. Department of Energy Richland Operations Office (DOE-RL) and CH2M Hill Plateau Remediation Company (CHPRC) commissioned an effort for the Pacific Northwest National Laboratory (PNNL) to re-invert the ERT data collected over the B-Complex using E4D, with the objective to improve imaging resolution and better understand the distribution of vadose zone contamination at the B-Complex. The details and results of that effort as documented in this report display a significant improvement in ERT image resolution, revealing the nature and orientation of contaminant plumes originating in former infiltration galleries and extending toward the water table. In particular, large plumes originating in the BY-Cribs area appear to have intercepted, or are close to intercepting the water table after being diverted eastward, possibly by the same low permeability unit causing perched water north of the B-Tank Farm boundary. Contaminant plumes are also evident beneath the BX-Trenches, but do not appear to have intercepted the water table. Imaging results within the tank farms themselves are highly biased by the dense network of electrically conductive tanks and dry wells, and are therefore inconclusive concerning contaminant distributions beneath tanks. However, beneath the diversion boxes, the results do reveal highly conductive anomalies that are not associated with metallic infrastructure, and may be diagnostic of extensive contamination. Overall, the parallel ERT inversion provides additional detail concerning contaminated zones in terms of conductive anomalies. These anomalies are consistent with waste disposal histories, and in several cases reveal lateral contaminant transport caused by heterogeneity within the vadose zone.

  5. Vehicle Technologies Office: 2014 Advanced Combustion Engine...

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

    Advanced Combustion Engine Annual Progress Report Vehicle Technologies Office: 2014 Advanced Combustion Engine Annual Progress Report The Advanced Combustion Engine research and...

  6. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    "Advancing The Technology" Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development Corey E. Weaver Ford Research and Advanced Engineering 05132011 Project...

  7. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    "Advancing The Technology" Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development Corey E. Weaver Ford Research and Advanced Engineering 05182012 Project...

  8. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    "Advancing The Technology" Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development Corey E. Weaver Ford Research and Advanced Engineering 06192014 Project...

  9. Advanced Energy Design Guides | Department of Energy

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

    Advanced Energy Design Guides Advanced Energy Design Guides EERE Building Technologies Program - This fact sheet discusses the Advanced Energy Design Guides (AEDGs) and how they...

  10. Advanced Separation Consortium

    SciTech Connect (OSTI)

    NONE

    2006-01-01T23:59:59.000Z

    The Center for Advanced Separation Technologies (CAST) was formed in 2001 under the sponsorship of the US Department of Energy to conduct fundamental research in advanced separation and to develop technologies that can be used to produce coal and minerals in an efficient and environmentally acceptable manner. The CAST consortium consists of seven universities - Virginia Tech, West Virginia University, University of Kentucky, Montana Tech, University of Utah, University of Nevada-Reno, and New Mexico Tech. The consortium brings together a broad range of expertise to solve problems facing the US coal industry and the mining sector in general. At present, a total of 60 research projects are under way. The article outlines some of these, on topics including innovative dewatering technologies, removal of mercury and other impurities, and modelling of the flotation process. 1 photo.

  11. Advanced Polymer Processing Facility

    SciTech Connect (OSTI)

    Muenchausen, Ross E. [Los Alamos National Laboratory

    2012-07-25T23:59:59.000Z

    Some conclusions of this presentation are: (1) Radiation-assisted nanotechnology applications will continue to grow; (2) The APPF will provide a unique focus for radiolytic processing of nanomaterials in support of DOE-DP, other DOE and advanced manufacturing initiatives; (3) {gamma}, X-ray, e-beam and ion beam processing will increasingly be applied for 'green' manufacturing of nanomaterials and nanocomposites; and (4) Biomedical science and engineering may ultimately be the biggest application area for radiation-assisted nanotechnology development.

  12. Advanced worker protection system

    SciTech Connect (OSTI)

    Caldwell, B.; Duncan, P.; Myers, J.

    1995-12-01T23:59:59.000Z

    The Department of Energy (DOE) is in the process of defining the magnitude and diversity of Decontamination and Decommissioning (D&D) obligations at its numerous sites. The DOE believes that existing technologies are inadequate to solve many challenging problems such as how to decontaminate structures and equipment cost effectively, what to do with materials and wastes generated, and how to adequately protect workers and the environment. Preliminary estimates show a tremendous need for effective use of resources over a relatively long period (over 30 years). Several technologies are being investigated which can potentially reduce D&D costs while providing appropriate protection to DOE workers. The DOE recognizes that traditional methods used by the EPA in hazardous waste site clean up activities are insufficient to provide the needed protection and worker productivity demanded by DOE D&D programs. As a consequence, new clothing and equipment which can adequately protect workers while providing increases in worker productivity are being sought for implementation at DOE sites. This project will result in the development of an Advanced Worker Protection System (AWPS). The AWPS will be built around a life support backpack that uses liquid air to provide cooling as well as breathing gas to the worker. The backpack will be combined with advanced protective garments, advanced liquid cooling garment, respirator, communications, and support equipment to provide improved worker protection, simplified system maintenance, and dramatically improve worker productivity through longer duration work cycles. Phase I of the project has resulted in a full scale prototype Advanced Worker Protection Ensemble (AWPE, everything the worker will wear), with sub-scale support equipment, suitable for integrated testing and preliminary evaluation. Phase II will culminate in a full scale, certified, pre-production AWPS and a site demonstration.

  13. Feasibility of a fast inverse dose optimization algorithm for IMRT via matrix inversion without negative beamlet intensities

    SciTech Connect (OSTI)

    Goldman, S.P.; Chen, J.Z.; Battista, J.J. [Department of Physics and Astronomy, University of Western Ontario, London, Ontario N6A 3K7 (Canada); Department of Medical Biophysics and Department of Oncology, University of Western Ontario and London Regional Cancer Program, London Health Sciences Centre, London, Ontario N6A 4L6 (Canada)

    2005-09-15T23:59:59.000Z

    A fast optimization algorithm is very important for inverse planning of intensity modulated radiation therapy (IMRT), and for adaptive radiotherapy of the future. Conventional numerical search algorithms such as the conjugate gradient search, with positive beam weight constraints, generally require numerous iterations and may produce suboptimal dose results due to trapping in local minima. A direct solution of the inverse problem using conventional quadratic objective functions without positive beam constraints is more efficient but will result in unrealistic negative beam weights. We present here a direct solution of the inverse problem that does not yield unphysical negative beam weights. The objective function for the optimization of a large number of beamlets is reformulated such that the optimization problem is reduced to a linear set of equations. The optimal set of intensities is found through a matrix inversion, and negative beamlet intensities are avoided without the need for externally imposed ad-hoc constraints. The method has been demonstrated with a test phantom and a few clinical radiotherapy cases, using primary dose calculations. We achieve highly conformal primary dose distributions with very rapid optimization times. Typical optimization times for a single anatomical slice (two dimensional) (head and neck) using a LAPACK matrix inversion routine in a single processor desktop computer, are: 0.03 s for 500 beamlets; 0.28 s for 1000 beamlets; 3.1 s for 2000 beamlets; and 12 s for 3000 beamlets. Clinical implementation will require the additional time of a one-time precomputation of scattered radiation for all beamlets, but will not impact the optimization speed. In conclusion, the new method provides a fast and robust technique to find a global minimum that yields excellent results for the inverse planning of IMRT.

  14. Advanced Microturbine Systems

    SciTech Connect (OSTI)

    None

    2005-12-31T23:59:59.000Z

    Dept. of Energy (DOE) Cooperative Agreement DE-FC02-00-CH11061 was originally awarded to Honeywell International, Inc. ?? Honeywell Power Systems Inc. (HPSI) division located in Albuquerque, NM in October 2000 to conduct a program titled Advanced Microturbine Systems (AMS). The DOE Advanced Microturbines Systems Program was originally proposed as a five-year program to design and develop a high efficiency, low emissions, durable microturbine system. The period of performance was to be October 2000 through September 2005. Program efforts were underway, when one year into the program Honeywell sold the intellectual property of Honeywell Power Systems Inc. and HPSI ceased business operations. Honeywell made an internal decision to restructure the existing program due to the HPSI shutdown and submitted a formal request to DOE on September 24, 2001 to transfer the Cooperative Agreement to Honeywell Engines, Systems and Services (HES&S) in Phoenix, AZ in order to continue to offer support for DOE's Advanced Microturbine Program. Work continued on the descoped program under Cooperative Agreement No. DE-FC26-00-CH11061 and has been completed.

  15. Joint Extension of States of Subsystems for a CAR System

    E-Print Network [OSTI]

    Huzihiro Araki; Hajime Moriya

    2004-05-14T23:59:59.000Z

    The problem of existence and uniqueness of a state of a joint system with given restrictions to subsystems is studied for a Fermion system, where a novel feature is non-commutativity between algebras of subsystems. For an arbitrary (finite or infinite) number of given subsystems, a product state extension is shown to exist if and only if all states of subsystems except at most one are even (with respect to the Fermion number). If the states of all subsystems are pure, then the same condition is shown to be necessary and sufficient for the existence of any joint extension. If the condition holds, the unique product state extension is the only joint extension. For a pair of subsystems, with one of the given subsystem states pure, a necessary and sufficient condition for the existence of a joint extension and the form of all joint extensions (unique for almost all cases) are given. For a pair of subsystems with non-pure subsystem states, some classes of examples of joint extensions are given where non-uniqueness of joint extensions prevails.

  16. Proceedings of the Third International Workshop on Jointed Structures.

    SciTech Connect (OSTI)

    Starr, Michael James; Brake, Matthew Robert; Segalman, Daniel Joseph; Bergman, Lawrence A. [University of Illinois at Urbana-Champaign, Urbana, IL; Ewins, David J. [Imperial College London, London, UK

    2013-08-01T23:59:59.000Z

    The Third International Workshop on Jointed Structures was held from August 16th to 17th, 2012, in Chicago Illinois, following the ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Thirty two researchers from both the United States and international locations convened to discuss the recent progress of mechanical joints related research and associated efforts in addition to developing a roadmap for the challenges to be addressed over the next five to ten years. These proceedings from the workshop include the minutes of the discussions and follow up from the 2009 workshop [1], presentations, and outcomes of the workshop. Specifically, twelve challenges were formulated from the discussions at the workshop, which focus on developing a better understanding of uncertainty and variability in jointed structures, incorporating high fidelity models of joints in simulations that are tractable/efficient, motivating a new generation of researchers and funding agents as to the importance of joint mechanics research, and developing new insights into the physical phenomena that give rise to energy dissipation in jointed structures. The ultimate goal of these research efforts is to develop a predictive model of joint mechanics.

  17. A spherical joint piston design for high speed diesel engines

    SciTech Connect (OSTI)

    Wiczynski, P.D. [Cummins Engine Co., Inc., Columbus, IN (United States); Mielke, S. [Kolbenschmidt AG, Neckarsulm (Germany); Conrow, R.

    1996-09-01T23:59:59.000Z

    A spherical joint piston and connecting rod have been developed through design proof-of-concept. The spherical joint allows piston rotation. The benefits of a rotating, symmetrical piston are: mechanical and thermal load symmetry, improved ring sealing and lubrication, and reduced bearing loads, scuffing, clearances and oil consumption. The assembly includes a squeeze cast, fiber reinforced aluminum spherical joint piston. Reinforcement is located in the piston bowl and skirt. The connecting rod consists of a spherical small end positioned on an elliptical cross-sectioned shank blended into a conventional big end. The assembly has operated at cylinder pressures exceeding of 24 MPa.

  18. The quality assurance of heat fused thermoplastic pipeline joints

    E-Print Network [OSTI]

    Earles, Larry Lee

    1982-01-01T23:59:59.000Z

    with no Heating Pressure 23 6 Temperature Distribution in Drisco 6500 with 25 psi Heating Pressure 7 Three-Dimensional Temperature Distribution in Drisco 6500 During the Fusion Cycle (Heating Time = 30 sec) 8 Heat Transfer Nodel Used to Nodel the Heating... of Temperature on Joint Strength from the Latin Square Using Drisco 8000 with the Bead Removed 52 25 Effect of Heating Time on Joint Strength From the Latin Square Using Drisco 8000 with the Bead Removed 53 26 Effect of Fusion Pressure on Joint Strength...

  19. Mesh Puppetry: Cascading Optimization of Mesh Deformation with Inverse Kinematics

    E-Print Network [OSTI]

    Zhou, Kun

    approach builds upon traditional rigging by optimizing skeleton position and vertex weights. Keywords: Mesh deformation, nonlinear optimization, inverse kinematics, geometry processing. 1 Introduction,mathieu}@caltech.edu Figure 1: Armadillo Olympics: The Armadillo model (top left) can be deformed to take various sport poses

  20. Directional Wetting in Anisotropic Inverse Opals Katherine R. Phillips,

    E-Print Network [OSTI]

    Aizenberg, Joanna

    the nano- to microscale voids. Here, we investigate how liquid wetting in highly ordered inverse opals template of colloidal particles. This highly ordered structure acts as a photonic crystal, strongly or not a given liquid will fill the structure spontaneously upon contact. Using alkylchlorosi- lanes,18 silica

  1. Inverse Marx modulators for self-biasing klystron depressed collectors

    SciTech Connect (OSTI)

    Kemp, Mark A. [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

    2014-08-28T23:59:59.000Z

    A novel pulsed depressed collector biasing scheme is proposed. This topology feeds forward energy recovered during one RF pulse for use on the following RF pulse. The presented ''inverse'' Marx charges biasing capacitors in series, and discharges them in parallel. Simulations are shown along with experimental demonstration on a 62kW klystron.

  2. The Laplace Transform 1 Laplace transform and inverse transform

    E-Print Network [OSTI]

    Yengulalp, Lynne

    The Laplace Transform Name: 1 Laplace transform and inverse transform Definition. Let f(t) be a function defined for t 0. Then the integral L {f(t)} = 0 e-st f(t)dt is said to be the Laplace transform of f provided the integral converges. Fill in the following Laplace transforms. L {tn } = L {eat } = L

  3. Nuclear applications of inverse scattering, present ... and future?

    E-Print Network [OSTI]

    R. S. Mackintosh

    2005-10-03T23:59:59.000Z

    There now exists a practical method (IP) for the routine inversion of $S$-matrix elements to produce the corresponding potential. It can be applied to spin-1/2 and spin-1 projectiles. We survey the ways that IP inversion can be applied in nuclear physics by inverting $S_{lj}$ derived from theory or from experiment. The IP inversion method can be extended to invert $S_{lj}(E)$ over a range of energies to produce a potential $V(r,E) + \\vect{l}\\vdot\\gvect{\\sigma} V_{\\rm ls}(r,E)$. It also yields parity-dependent potentials between pairs of light nuclei and can be convoluted with a direct search on the $S$-matrix to produce `direct data $\\to V$ inversion'. The last is an economical alternative form of optical model search to fit many observables (e.g. for polarized deuterons) for many energies, producing an energy-dependent potential with many parameters (e.g. $T_{\\rm R}$ for deuterons).

  4. Humanoid Walking Robot: Modeling, Inverse Dynamics, and Gain Scheduling Control

    E-Print Network [OSTI]

    Williams II, Robert L.

    and Robert L. Williams II Department of Mechanical Engineering Ohio University, Athens, OH 45701 Revised trajectories, recorded from real human walking cycle data. Kinematic and dynamic analysis is discussed. This analysis is accompanied by a comparison with available experimental data. Finally, an inverse plant

  5. APPROXIMATE INVERSE PRECONDITIONING FOR THE CONJUGATE GRADIENT METHOD

    E-Print Network [OSTI]

    T鵰a, Miroslav

    APPROXIMATE INVERSE PRECONDITIONING FOR THE CONJUGATE GRADIENT METHOD ON A VECTOR COMPUTER Michele definite matrix, by the preconditioned conjugate gradient method (PCG) (see, e.g., [4]). It is well of the conjugate gradient method reduces to computing a matrix vector product with G, an operation which offers

  6. DISCRIMINATION AND CLASSIFICATION OF UXO USING MAGNETOMETRY: INVERSION AND ERROR

    E-Print Network [OSTI]

    Sambridge, Malcolm

    DISCRIMINATION AND CLASSIFICATION OF UXO USING MAGNETOMETRY: INVERSION AND ERROR ANALYSIS USING for the different solutions didn't even overlap. Introduction A discrimination and classification strategy ambiguity and possible remanent magnetization the recovered dipole moment is compared to a library

  7. Inversion of Hydrological Tracer Test Data Using TomogrpahicConstraints

    SciTech Connect (OSTI)

    Linde, Niklas; Finsterle, Stefan; Hubbard, Susan

    2004-11-11T23:59:59.000Z

    A reasonable description of the hydraulic conductivity structure is a prerequisite for modeling contaminant transport. However, formulations of hydrogeological inverse problems utilizing hydrogeological data only often fail to reliably resolve features at a resolution required for accurately predicting transport. Incorporation of geophysical data into the inverse problem offers the potential to increase this resolution. In this study, we invert hydrological tracer test data using the shape and relative magnitude variations derived from geophysical tomographic data to regionalize a hydrogeological inverse problem in order to estimate the hydraulic conductivity structure. Our approach does not require that the petrophysical relationship be known a-priori, but that it is linear and stationary within each geophysical anomaly. However, tomograms are imperfect models of geophysical properties and geophysical properties are not necessarily strongly linked to hydraulic conductivity. Therefore, we focus on synthetic examples where the correlation between radar velocity and hydraulic conductivity, as well as the geophysical data acquisition errors, are varied in order to assess what aspects of the hydraulic conductivity structure we can expect to resolve under different conditions. The results indicate that regularization of the tracer inversion procedure using geophysical data improves estimates of hydraulic conductivity. We find that even under conditions of corrupted geophysical data, we can accurately estimate the effective hydraulic conductivity and areas of high and low hydraulic conductivity. However, given imperfect geophysical data, our results suggest that we cannot expect accurate estimates of the variability of the hydraulic conductivity structure.

  8. Optimization Methods in Direct and Inverse Alexander G. Ramm1

    E-Print Network [OSTI]

    Optimization Methods in Direct and Inverse Scattering Alexander G. Ramm1 and Semion Gutman2 1- mization problem, and solved by the Hybrid Stochastic-Deterministic minimization algorithm. A similar for the case of spherically symmetric potentials and fixed-energy phase shifts as the scattering data

  9. On nonsingular potentials of Cox-Thompson inversion scheme

    E-Print Network [OSTI]

    Tamas Palmai; Barnabas Apagyi

    2011-11-25T23:59:59.000Z

    We establish a condition for obtaining nonsingular potentials using the Cox-Thompson inverse scattering method with one phase shift. The anomalous singularities of the potentials are avoided by maintaining unique solutions of the underlying Regge-Newton integral equation for the transformation kernel. As a by-product, new inequality sequences of zeros of Bessel functions are discovered.

  10. The Inverse Kinetics Method and PID Compensation of the

    E-Print Network [OSTI]

    The Inverse Kinetics Method and PID Compensation of the Annular Core Research Reactor by Benjamin Kinetics Method and PID Compensation of the Annular Core Research Reactor by Benjamin Garnas ABSTRACT Kinetics Method and PID Compensation of the Annular Core Research Reactor by Benjamin Garnas B.S. General

  11. A family of inversion formulas in Thermoacoustic Tomography

    E-Print Network [OSTI]

    Nguyen, Linh V

    2009-01-01T23:59:59.000Z

    We present a family of closed form inversion formulas in thermoacoustic tomography in the case of a constant sound speed. The formulas are presented in both time-domain and frequency-domain versions. As special cases, they imply most of the previously known filtered backprojection type formulas.

  12. Shape Reconstruction of Inverse Medium Scattering for the ...

    E-Print Network [OSTI]

    2011-11-03T23:59:59.000Z

    In practice, it is convenient to reduce the problem to a bounded domain by ... The well-posedness of the direct scattering is proved, and important energy. 2 .... The proof is completed by combining (2.6) and (2.4). Remark 2.1. .... It is essential for the success and efficiency of the inverse obstacle scattering to have a good and.

  13. Inverse diffusion from knowledge of power densities Guillaume Bal

    E-Print Network [OSTI]

    Bal, Guillaume

    asymptotic expansions and (Fourier) transformation, this allow us to construct the power density) provides access to the power density H(x) = (x)|u|2 (x) for all x inside the domain of interestInverse diffusion from knowledge of power densities Guillaume Bal , Eric Bonnetier , Fran

  14. Nonlinear Fourier Analysis The Direct & Inverse Scattering Transforms

    E-Print Network [OSTI]

    Christov, Ivan C.

    Nonlinear Fourier Analysis The Direct & Inverse Scattering Transforms for the Korteweg璬e Vries by ONR/NRL funding. Nonlinear Fourier Analysis p.1/15 #12;Background & Introduction (I) 1895: Korteweg equations known as the Scattering Transform. Nonlinear Fourier Analysis p.2/15 #12;Background

  15. Assessing streamaquifer interactions through inverse modeling of flow routing q

    E-Print Network [OSTI]

    Szilagyi, Jozsef

    Assessing stream颅aquifer interactions through inverse modeling of flow routing q Jozsef Szilagyi a and Nieber, 1977; Troch et al., 1993; Brutsaert and Lopez, 1998; Szilagyi et al., 1998; Par- lange et al., 2001; Szilagyi, 2003a). Knowledge of this inter- action between streamflow and groundwater during flood

  16. Inverse-design and optimization methods for centrifugal pump impellers

    E-Print Network [OSTI]

    Twente, Universiteit

    to be incompressible. As such, these methods are applicable to pumps, fans and hydraulic turbines. Furthermore details can lead to large changes in performance, like resulting head, efficiency and cavitation as input and the flow field and the performance are obtained as a result. In contrast, for an inverse

  17. INVERSION OF CONVERTED-WAVE SEISMIC DATA FOR RESERVOIR CHARACTERIZATION

    E-Print Network [OSTI]

    INVERSION OF CONVERTED-WAVE SEISMIC DATA FOR RESERVOIR CHARACTERIZATION AT RULISON FIELD, COLORADO Basin of northwest Colorado. The reservoir consists of lenticular fluvial sands, shales, and coals of magnitude lower than the seismic resolution which is 105 ft. The sandstone reservoirs are the primary target

  18. Using Expert Knowledge in Solving the Seismic Inverse Problem ?

    E-Print Network [OSTI]

    Ward, Karen

    practical applications, it it important to solve the seismic inverse problem, i.e., to measure seismic exhausted. Even under the best conservation policies, there is (and there will be) a constant need to find that there are resources such as minerals at a certain location is to actually drill a borehole and analyze the materials

  19. Remote controlled vacuum joint closure mechanism

    DOE Patents [OSTI]

    Doll, David W. (San Diego, CA); Hager, E. Randolph (La Jolla, CA)

    1986-01-01T23:59:59.000Z

    A remotely operable and maintainable vacuum joint closure mechanism for a noncircular aperture is disclosed. The closure mechanism includes an extendible bellows coupled at one end to a noncircular duct and at its other end to a flange assembly having sealed grooves for establishing a high vacuum seal with the abutting surface of a facing flange which includes an aperture forming part of the system to be evacuated. A plurality of generally linear arrangements of pivotally coupled linkages and piston combinations are mounted around the outer surface of the duct and aligned along the length thereof. Each of the piston/linkage assemblies is adapted to engage the flange assembly by means of a respective piston and is further coupled to a remote controlled piston drive shaft to permit each of the linkages positioned on a respective flat outer surface of the duct to simultaneously and uniformly displace a corresponding piston and the flange assembly with which it is in contact along the length of the duct in extending the bellows to provide a high vacuum seal between the movable flange and the facing flange. A plurality of latch mechanisms are also pivotally mounted on the outside of the duct. A first end of each of the latch mechanisms is coupled to a remotely controlled latch control shaft for displacing the latch mechanism about its pivot point. In response to the pivoting displacement of the latch mechanism, a second end thereof is displaced so as to securely engage the facing flange.

  20. The institutional needs of joint implementation projects

    SciTech Connect (OSTI)

    Watt, E.; Sathaye, J. [Lawrence Berkeley Lab., CA (United States); Buen, O. de; Masera, O. [National Univ. of Mexico, Mexico City (Mexico); Gelil, I.A. [Organization of Energy Conservation and Planning, Cairo (Egypt); Ravindranath, N.H. [Indian Inst. of Science, Bangalore (India); Zhou, D.; Li, J. [Energy Research Inst., Beijing (China); Intarapravich, D. [Thailand Environmental Inst., Bangkok (Thailand)

    1995-10-21T23:59:59.000Z

    In this paper, the authors discuss options for developing institutions for joint implementation (JI) projects. They focus on the tasks which are unique to JI projects or require additional institutional needs--accepting the project by the host and investor countries and assessing the project`s greenhouse gas (GHG) emission reduction or sequestration--and they suggest the types of institutions that would enhance their performance. The evaluation is based on four sets of governmental and international criteria for JI projects, the experiences of ten pilot JI projects, and the perspectives of seven collaborating authors from China, Egypt, India, Mexico, and Thailand, who interviewed relevant government and non-government staff involved in JI issue assessment in their countries. After examining the roles for potential JI institutions, they present early findings arguing for a decentralized national JI structure, which includes: (1) national governmental panels providing host country acceptance of proposed JI projects; (2) project parties providing the assessment data on the GHG reduction or sequestration for the projects; (3) technical experts calculating these GHG flows; (4) certified verification teams checking the GHG calculations; and (5) members of an international JI Secretariat training and certifying the assessors, as well as resolving challenges to the verifications. 86 refs.

  1. Bayesian model selection applied to self-noise geoacoustic inversion

    E-Print Network [OSTI]

    Buckingham, Michael

    -water environments. In this paper, Gibbs sampling is used to obtain joint and marginal posterior probability of seabed geology, these parameters enable performance predictions for sonar systems operating in shallow, plant and hydrody- namic noise generated by the tow ship as a by-product of its normal operation is used

  2. Interpreting Helioseismic Structure Inversion Results of Solar Active Regions

    E-Print Network [OSTI]

    Chia-Hsien Lin; Sarbani Basu; Linghuai Li

    2008-09-08T23:59:59.000Z

    Helioseismic techniques such as ring-diagram analysis have often been used to determine the subsurface structural differences between solar active and quiet regions. Results obtained by inverting the frequency differences between the regions are usually interpreted as the sound-speed differences between them. These in turn are used as a measure of temperature and magnetic-field strength differences between the two regions. In this paper we first show that the "sound-speed" difference obtained from inversions is actually a combination of sound-speed difference and a magnetic component. Hence, the inversion result is not directly related to the thermal structure. Next, using solar models that include magnetic fields, we develop a formulation to use the inversion results to infer the differences in the magnetic and thermal structures between active and quiet regions. We then apply our technique to existing structure inversion results for different pairs of active and quiet regions. We find that the effect of magnetic fields is strongest in a shallow region above 0.985R_sun and that the strengths of magnetic-field effects at the surface and in the deeper (r < 0.98R_sun) layers are inversely related, i.e., the stronger the surface magnetic field the smaller the magnetic effects in the deeper layers, and vice versa. We also find that the magnetic effects in the deeper layers are the strongest in the quiet regions, consistent with the fact that these are basically regions with weakest magnetic fields at the surface. Because the quiet regions were selected to precede or follow their companion active regions, the results could have implications about the evolution of magnetic fields under active regions.

  3. Draft Advanced Nuclear Energy Projects Solicitation | Department...

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

    Federal loan guarantee solicitation announcement -- Advanced Nuclear Energy Projects. Draft Advanced Nuclear Energy Projects Solicitation More Documents & Publications Draft...

  4. Northeast Energy Efficiency Partnerships: Advanced Lighting Controls...

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

    Northeast Energy Efficiency Partnerships: Advanced Lighting Controls - 2015 Peer Review Northeast Energy Efficiency Partnerships: Advanced Lighting Controls - 2015 Peer Review...

  5. Southface Energy Institute: Advanced Commercial Buildings Initiative...

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

    Southface Energy Institute: Advanced Commercial Buildings Initiative - 2015 Peer Review Southface Energy Institute: Advanced Commercial Buildings Initiative - 2015 Peer Review...

  6. Enhancing Transportation Energy Security through Advanced Combustion...

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

    Transportation Energy Security through Advanced Combustion and Fuels Technologies Enhancing Transportation Energy Security through Advanced Combustion and Fuels Technologies 2005...

  7. Advanced Battery Materials Characterization: Success stories...

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

    Advanced Battery Materials Characterization: Success stories from the High Temperature Materials Laboratory (HTML) User Program Advanced Battery Materials Characterization: Success...

  8. Department of Mathematics: Advanced Graduate Course ...

    E-Print Network [OSTI]

    Advanced Graduate Course Advertisements. Descriptions of advanced graduate courses for specific semesters. The course advertisements are PDF documents.

  9. Smith Electric Vehicles: Advanced Vehicle Electrification + Transporta...

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

    Smith Electric Vehicles: Advanced Vehicle Electrification + Transportation Sector Electrification Smith Electric Vehicles: Advanced Vehicle Electrification + Transportation Sector...

  10. Electrolytes - Advanced Electrolyte and Electrolyte Additives...

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

    More Documents & Publications Electrolytes - Advanced Electrolyte and Electrolyte Additives Electrolytes - Advanced Electrolyte and Electrolyte Additives Develop & Evaluate...

  11. Electrolytes - Advanced Electrolyte and Electrolyte Additives...

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

    More Documents & Publications Development of Advanced Electrolytes and Electrolyte Additives Electrolytes - Advanced Electrolyte and Electrolyte Additives Develop & evaluate...

  12. adaptive independent joint: Topics by E-print Network

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

    The proposed methods are based on (more) Shou-Chun, Yin, 1980- 2006-01-01 2 Joint Sizing and Adaptive Independent Gate Control for FinFET Circuits Operating in...

  13. Research Councils UK Joint Vision For Collaborative Training

    E-Print Network [OSTI]

    Berzins, M.

    Research Councils UK Joint Vision For Collaborative Training Objectives: Research Council Collaborative Training will provide doctoral students with a first- rate, challenging research training organisations in the private, public and civil society sectors. Benefits to the student Collaborative Training

  14. Joint Center for Energy Storage Research Beyond Lithium-Ion

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

    Joint Center for Energy Storage Research Beyond Lithium-Ion 2012 2017 USE MULTIPLY-CHARGED IONS STORE ENERGY IN CHEMICAL BONDS STORE ENERGY IN LIQUIDS IN THE NEXT FIVE YEARS AT...

  15. A study of discrete and continuum joint modeling techniques

    SciTech Connect (OSTI)

    Jung, J.; Brown, S.R.

    1992-05-01T23:59:59.000Z

    This paper presents the results of a numerical and experimental study in which finite element and discrete element techniques were used to analyze a layered polycarbonate plate model subjected to uniaxial compression. Also, the two analysis techniques were used to compute the response of an eight meter diameter drift in jointed-rock. The drift was subjected to in-situ and far-field induced thermal stresses. The finite element analyses used a continuum rock model to represent the jointed-rock. A comparison of the analyses showed that the finite element continuum joint model consistently predicted less joint slippage than did the discrete element analyses, although far-field displacements compared well.

  16. United States -- Mexican joint ventures: A case history approach

    SciTech Connect (OSTI)

    Moore, N.L.; Chidester, R.J.; Hughes, K.R.; Fowler, R.A.

    1993-03-01T23:59:59.000Z

    Because the Mexican government has encouraged investment in Mexico by increasing the percentage of ownership of a Mexican business that a US company can hold, joint ventures are more attractive now than they had been in the past. This study provides preliminary information for US renewable energy companies who are interested in forming a joint venture with a Mexican company. This report is not intended to be a complete reference but does identifies a number of important factors that should be observed when forming a Mexican joint venture: (1)Successful joint ventures achieve the goals of each partner. (2)It is essential that all parties agree to the allocation of responsibilities. (3)Put everything in writing. (4)Research in depth the country or countries in which you are considering doing business.

  17. Bioinspired, mechanical, deterministic fractal model for hierarchical suture joints

    E-Print Network [OSTI]

    Boyce, Mary Cunningham

    Many biological systems possess hierarchical and fractal-like interfaces and joint structures that bear and transmit loads, absorb energy, and accommodate growth, respiration, and/or locomotion. In this paper, an elastic ...

  18. announce joint program: Topics by E-print Network

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

    Energy Technologies in Top-down Economic Models Using Bottom-up Information James R. McFarland, John Reilly and Howard J 125 MIT Joint Program on the Science and Policy...

  19. Joint pricing and inventory decision for competitive products

    E-Print Network [OSTI]

    Ye, Kelly (Kelly Yunqing)

    2008-01-01T23:59:59.000Z

    We consider the joint pricing and inventory decision problem for a single retailer who orders, stocks and sells multiple products. The products are competitive in nature, e.g., these maybe similar products from multiple ...

  20. Joint NSRC Workshop 2015: Big, Deep, and Smart Data Analytics...

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

    Venue & access The Joint NSRC Workshop 2015 will be held in Building 8600, Iran Thomas Auditorium, at the Spallation Neutron Source at the Oak Ridge National Laboratory, Oak Ridge,...

  1. Seismic Capacity of Threaded, Brazed, and Grooved Pipe Joints

    Office of Environmental Management (EM)

    SEISMIC CAPACITY OF THREADED, BRAZED AND GROOVED PIPE JOINTS Brent Gutierrez, PhD, PE George Antaki, PE, F.ASME DOE NPH Conference October 25-26, 2011 Motivation * Understand the...

  2. ADVANCED SULFUR CONTROL CONCEPTS

    SciTech Connect (OSTI)

    Apostolos A. Nikolopoulos; Santosh K. Gangwal; William J. McMichael; Jeffrey W. Portzer

    2003-01-01T23:59:59.000Z

    Conventional sulfur removal in integrated gasification combined cycle (IGCC) power plants involves numerous steps: COS (carbonyl sulfide) hydrolysis, amine scrubbing/regeneration, Claus process, and tail-gas treatment. Advanced sulfur removal in IGCC systems involves typically the use of zinc oxide-based sorbents. The sulfides sorbent is regenerated using dilute air to produce a dilute SO{sub 2} (sulfur dioxide) tail gas. Under previous contracts the highly effective first generation Direct Sulfur Recovery Process (DSRP) for catalytic reduction of this SO{sub 2} tail gas to elemental sulfur was developed. This process is currently undergoing field-testing. In this project, advanced concepts were evaluated to reduce the number of unit operations in sulfur removal and recovery. Substantial effort was directed towards developing sorbents that could be directly regenerated to elemental sulfur in an Advanced Hot Gas Process (AHGP). Development of this process has been described in detail in Appendices A-F. RTI began the development of the Single-step Sulfur Recovery Process (SSRP) to eliminate the use of sorbents and multiple reactors in sulfur removal and recovery. This process showed promising preliminary results and thus further process development of AHGP was abandoned in favor of SSRP. The SSRP is a direct Claus process that consists of injecting SO{sub 2} directly into the quenched coal gas from a coal gasifier, and reacting the H{sub 2}S-SO{sub 2} mixture over a selective catalyst to both remove and recover sulfur in a single step. The process is conducted at gasifier pressure and 125 to 160 C. The proposed commercial embodiment of the SSRP involves a liquid phase of molten sulfur with dispersed catalyst in a slurry bubble-column reactor (SBCR).

  3. Advanced Manufacture of Reflectors

    Broader source: Energy.gov [DOE]

    The Advance Manufacture of Reflectors fact sheet describes a SunShot Initiative project being conducted research team led by the University of Arizona, which is working to develop a novel method for shaping float glass. The technique developed by this research team can drastically reduce the time required for the shaping step. By enabling mass production of solar concentrating mirrors at high speed, this project should lead to improved performance and as much as a 40% reduction in manufacturing costs for reflectors made in very high volume.

  4. Advanced NTR options. [Ta

    SciTech Connect (OSTI)

    Davis, J.W.; Mills, J.C.; Glass, J.F.; Tu, W. (Rockwell International/Rocketdyne Division, 6633 Canoga Avenue, MS HB23 Canoga Park, California 81303 (US))

    1991-01-05T23:59:59.000Z

    Advanced NTR concepts which offer performance improvements over the ROVER/NERVA designs have been investigated. In addition, the deliverable performance of low pressure operation and materials issues have been investigated. Based on current experience, a maximum exit gas temperature of 3200 K is likely achievable with a ZrC based PBR design. At 3200 K a low pressure NTR would have marginal performance advantage (Isp) over a high pressure system. If tantalum or other high melting point carbides are used then an exit gas temperature of 3500 K may be feasible. At 3500 K low pressure operation offers more significant performance improvements which could outweigh associated size and mass penalties.

  5. Advanced Simulation Capability

    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 33 111 1,613Portsmouth SitePresentations |StateNuclear Energy Projects4 Status Report The Advanced

  6. Advanced Simulation Capability

    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 33 111 1,613Portsmouth SitePresentations |StateNuclear Energy Projects4 Status Report The Advanced2

  7. Advanced Conversion Roadmap Workshop

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platform is alwaysISO 50001Energy Efficiency Grants |Energy|AdvancedLeslie

  8. Advanced Combustion FAQs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 Power and TransmissionAdolphusAdvanced

  9. Advanced Materials Manufacturing | ORNL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 Power andAdvancedCMWG

  10. Advanced Rooftop Unit Control

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 PowerAdvanced ModelingNuclear

  11. Advanced Studies Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 PowerAdvanced

  12. Advanced Studies Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 PowerAdvancedInstitute Engineering Institute

  13. Advanced Target Effects Modeling

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 PowerAdvancedInstitute Engineering

  14. Advanced Feedstock Supply System

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The Future of1 AAccelerated agingDepartmentDevelopment and1 | BioenergyAdvanced

  15. METAMODELS AS INPUT OF AN OPTIMIZATION ALGORITHM FOR SOLVING AN INVERSE EDDY CURRENT TESTING PROBLEM

    E-Print Network [OSTI]

    Boyer, Edmond

    METAMODELS AS INPUT OF AN OPTIMIZATION ALGORITHM FOR SOLVING AN INVERSE EDDY CURRENT TESTING-Curie, 91192 Gif-sur-Yvette, France Abstract A new mean of solution of eddy current testing (ECT) inverse

  16. Inverse Compton scattering from plasma mirror experiment Hai-En Tsai, Joseph Shaw, Xiaoming Wang

    E-Print Network [OSTI]

    Shvets, Gennady

    Inverse Compton scattering from plasma mirror experiment Hai-En Tsai, Joseph Shaw, Xiaoming Wang 1 experiment, we tried to generate inverse Compton x-ray by reflecting driving pulse from plasma mirrors

  17. Mesozoic tectonic inversion in the Neuquen Basin of west-central Argentina

    E-Print Network [OSTI]

    Grimaldi Castro, Gabriel Orlando

    2007-04-25T23:59:59.000Z

    Mesozoic tectonic inversion in the Neuquen Basin of west-central Argentina produced two main fault systems: (1) deep faults that affected basement and syn-rift strata where preexisting faults were selectively reactivated during inversion based...

  18. Structural fabric of the Palisades Monocline: a study of positive inversion, Grand Canyon, Arizona

    E-Print Network [OSTI]

    Orofino, James Cory

    2005-08-29T23:59:59.000Z

    of positive inversion to test model results and improve understanding of inversion processes. The N40W 90 oriented Palisades fault underlying the monocline has experienced northeast-southwest Precambrian extension and subsequent northeastsouthwest Laramide...

  19. An Inverse Finite Element Analysis and A Parametric Study of Small Punch Tests

    E-Print Network [OSTI]

    Xu, Zhenzhen

    2012-02-14T23:59:59.000Z

    the effects of SPT parameters including friction coefficient, punch head diameter, sample thickness, specimen scale and boundary conditions. The proposed inverse finite element (FE) method improves the accuracy of existing inverse FE methods...

  20. Non-linear inversion modeling for Ultrasound Computer Tomography: transition from soft to hard tissues imaging

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Non-linear inversion modeling for Ultrasound Computer Tomography: transition from soft to hard Marseille cedex 20, France ABSTRACT Ultrasound Computer Tomography (UCT) is an imaging technique which has experiments. Keyword: Ultrasound Computer Tomography, Inverse Born Approximation, Elliptical Projection