Sample records for fault mapping field

  1. Fault Mapping | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: Energy Resources44795°, -83.3763218°Farnham,Fastcap45.Mapping

  2. Volumetric Curvature and Coherency Assisted Fault Mapping and Fracture Prediction of Carbonate Reservoir Huabei Field, North China

    E-Print Network [OSTI]

    Li, Allen

    2014-08-10T23:59:59.000Z

    in carbonates, and are thus the focus of my investigation. With a 3D dataset and well data from the Huabei Field in North China, a carbonate reservoir is identified and interpreted through the field. We use the reservoir top depth to narrow our window...

  3. Fault prediction in aircraft engines using Self-Organizing Maps

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fault prediction in aircraft engines using Self- Organizing Maps Marie Cottrell1 , Patrice Gaubert1. Aircraft engines are designed to be used during several tens of years. Their maintenance is a challenging and costly task, for obvious security reasons. The goal is to ensure a proper operation of the engines

  4. Self field triggered superconducting fault current limiter

    DOE Patents [OSTI]

    Tekletsadik, Kasegn D. (Rexford, NY)

    2008-02-19T23:59:59.000Z

    A superconducting fault current limiter array with a plurality of superconductor elements arranged in a meanding array having an even number of supconductors parallel to each other and arranged in a plane that is parallel to an odd number of the plurality of superconductors, where the odd number of supconductors are parallel to each other and arranged in a plane that is parallel to the even number of the plurality of superconductors, when viewed from a top view. The even number of superconductors are coupled at the upper end to the upper end of the odd number of superconductors. A plurality of lower shunt coils each coupled to the lower end of each of the even number of superconductors and a plurality of upper shunt coils each coupled to the upper end of each of the odd number of superconductors so as to generate a generally orthoganal uniform magnetic field during quenching using only the magenetic field generated by the superconductors.

  5. STRESS AND FAULTING IN THE COSO GEOTHERMAL FIELD: UPDATE AND...

    Open Energy Info (EERE)

    FLANK AND COSO WASH Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: STRESS AND FAULTING IN THE COSO GEOTHERMAL FIELD: UPDATE AND...

  6. Reservoir Fracture Mapping using Microearthquakes: Austin Chalk, Giddings Field, TX and 76 Field, Clinton Co., KY.

    E-Print Network [OSTI]

    and enhanced recovery, production operations in fracture- dominated oil and gas reservoirs. Borehole geophonesSPE 36651 Reservoir Fracture Mapping using Microearthquakes: Austin Chalk, Giddings Field, TX-fault fracture zones above and below a producing zone. Associations with depleted production intervals indicated

  7. Maps between Deformed and Ordinary Gauge Fields

    E-Print Network [OSTI]

    L. Mesref

    2005-04-13T23:59:59.000Z

    In this paper, we introduce a map between the q-deformed gauge fields defined on the GL$_{q}(N) $-covariant quantum hyperplane and the ordinary gauge fields. Perturbative analysis of the q-deformed QED at the classical level is presented and gauge fixing $\\grave{a} $ la BRST is discussed. An other star product defined on the hybrid $(q,h) $% -plane is explicitly constructed .

  8. Thoughts Regarding the Dimensions of Faults at Rainier and Aqueduct Mesas, Nye County, Nevada, Based on Surface and Underground Mapping

    SciTech Connect (OSTI)

    Drellack, S.L.; Prothro, L.B.; Townsend, M.J.; Townsend, D.R.

    2011-02-01T23:59:59.000Z

    The geologic setting and history, along with observations through 50 years of detailed geologic field work, show that large-displacement (i.e., greater than 30 meters of displacement) syn- to post-volcanic faults are rare in the Rainier Mesa area. Faults observed in tunnels and drill holes are mostly tight, with small displacements (most less than 1.5 meters) and small associated damage zones. Faults are much more abundant in the zeolitized tuffs than in the overlying vitric tuffs, and there is little evidence that faults extend downward from the tuff section through the argillic paleocolluvium into pre-Tertiary rocks. The differences in geomechanical characteristics of the various tuff lithologies at Rainier Mesa suggest that most faults on Rainer Mesa are limited to the zeolitic units sandwiched between the overlying vitric bedded tuffs and the underlying pre-Tertiary units (lower carbonate aquifer3, lower clastic confining unit1, and Mesozoic granite confining unit).

  9. A Method for Impact Assessment of Faults on the Performance of Field-Oriented Control Drives

    E-Print Network [OSTI]

    Liberzon, Daniel

    , reliability of a motor drive can be explored via the emerging field of thermo- electrical analysis [3A Method for Impact Assessment of Faults on the Performance of Field-Oriented Control Drives Grainger Center for Electric Machinery and Electromechanics Department of Electrical and Computer

  10. Controlled-source electromagnetic mapping of a faulted sandstone aquifer in central Texas

    E-Print Network [OSTI]

    Gorman, Erin Margaret

    2012-06-07T23:59:59.000Z

    across a fault (Randolph 1991), due to permeability reduction in the deformation zone, but in some cases can be enhanced along the fault slip plane (Antonellini and Aydin 1994), i. e. parallel to the fault. A knowledge of subsurface fault distributions... the electromagnetic response. Seaborne et al. (1979) interpreted the anomalies as the edge effect of thin horizontal sheets of low resistivity beds, as opposed to the high conductivity response of the material in a fault zone. In a similar study, Hazell er al...

  11. Analysis of Fault Permeability Using Mapping and Flow Modeling, Hickory Sandstone Aquifer, Central Texas

    SciTech Connect (OSTI)

    Nieto Camargo, Jorge E., E-mail: jorge.nietocamargo@aramco.com; Jensen, Jerry L., E-mail: jjensen@ucalgary.ca [University of Calgary, Department of Chemical and Petroleum Engineering (Canada)

    2012-09-15T23:59:59.000Z

    Reservoir compartments, typical targets for infill well locations, are commonly created by faults that may reduce permeability. A narrow fault may consist of a complex assemblage of deformation elements that result in spatially variable and anisotropic permeabilities. We report on the permeability structure of a km-scale fault sampled through drilling a faulted siliciclastic aquifer in central Texas. Probe and whole-core permeabilities, serial CAT scans, and textural and structural data from the selected core samples are used to understand permeability structure of fault zones and develop predictive models of fault zone permeability. Using numerical flow simulation, it is possible to predict permeability anisotropy associated with faults and evaluate the effect of individual deformation elements in the overall permeability tensor. We found relationships between the permeability of the host rock and those of the highly deformed (HD) fault-elements according to the fault throw. The lateral continuity and predictable permeability of the HD fault elements enhance capability for estimating the effects of subseismic faulting on fluid flow in low-shale reservoirs.

  12. Field Mapping At Long Valley Caldera Geothermal Area (Sorey ...

    Open Energy Info (EERE)

    Sorey & Farrar, 1998) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Long Valley Caldera Geothermal Area (Sorey & Farrar, 1998)...

  13. Field Mapping At Walker-Lane Transitional Zone Region (Shevenell...

    Open Energy Info (EERE)

    Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  14. Field Mapping At Blue Mountain Geothermal Area (Fairbank Engineering...

    Open Energy Info (EERE)

    Engineering Ltd, 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Blue Mountain Geothermal Area (Fairbank Engineering Ltd,...

  15. Field Mapping At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  16. Field Mapping At Central Nevada Seismic Zone Region (Shevenell...

    Open Energy Info (EERE)

    Shevenell, Et Al., 2008) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be...

  17. Fault Tolerant MapReduce-MPI using User Level Failure Mitigation...

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

    different models to achieve fault tolerance in MR-MPI: checkpoint-restart and detect-resume. The checkpoint-restart model is implemented using the current MPI standard. It allows...

  18. Wrench faulting and cavity concentration ; Dollarhide Field, Andrews County, Texas

    E-Print Network [OSTI]

    Dygert, Todd Charles

    1992-01-01T23:59:59.000Z

    Tectonics of the Central Basin Platform During the Early Paleozoic, North America's passive southern margin enabled carbonate and siliceous rocks to infill the Tobosa Basin, or what is now the permian Basin (Galley, 1958; Hills, 1972; Yang and Dorobek...-Guadalupian stratigraphy of the Dollarhide Field. limestones, dolomites and cherts except for the Ordovician Simpson Group. The Woodford Shale (Upper Devonian-Lower Mississippian) is organically rich and the probable source rock for the Devonian and Lower Permian...

  19. Field Mapping At San Francisco Volcanic Field Area (Warpinski...

    Open Energy Info (EERE)

    geologically mapped the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify...

  20. The Field Museum Education Department Presents Educator Guide & Walking Map

    E-Print Network [OSTI]

    Patterson, Bruce D.

    The Field Museum Education Department Presents Educator Guide & Walking Map The Field Museum before and after your visit to the Museum. Darwin is organized by the American Museum of Natural History, New York, in collaboration with The Field Museum, Chicago; the Museum of Science, Boston; the Royal

  1. Mapping of grid faults and grid codes Florin Iov, Anca Daniela Hansen, Poul Srensen,

    E-Print Network [OSTI]

    to clarify and define possible new directions in the certification process of power plant wind turbines, namely wind turbines, which participate actively in the stabilisation of power systems. Practical-Ontario 27 3.8.4 Conclusions 28 3.9 Summary 28 4 Fault analysis 30 4.1 Simulation Model 30 4.2 Study cases 32

  2. Evaluation of a Decoupling-Based Fault Detection and Diagnostic Technique - Part I: Field Emulation Evaluation

    E-Print Network [OSTI]

    Li, H.; Braun, J.

    2006-01-01T23:59:59.000Z

    ), evaporator fouling (Evapfoul), liquid-line restriction (Llrestr), low refrigerant charge (Reflow), and refrigerant high charge (Refhigh). Except for refrigerant charge and compressor leakage faults for which five fault levels were introduced, four fault... for these tests. The method could detect low refrigerant charge and loss of compressor performance at the lowest levels introduced and all other faults at the second level. All of the faults could be reliably diagnosed before a 5% degradation in capacity...

  3. Locating an active fault zone in Coso geothermal field by analyzing...

    Open Energy Info (EERE)

    production and injection drilling, since an active fault zone often acts as a fracture-extensive low-velocity wave guide to seismic waves. We have located an active fault...

  4. Field Testing of a Portable Radiation Detector and Mapping System

    SciTech Connect (OSTI)

    Hofstetter, K.J. [Westinghouse Savannah River Company, AIKEN, SC (United States); Hayes, D.W.; Eakle, R.F.

    1998-03-01T23:59:59.000Z

    Researchers at the Savannah River Site (SRS) have developed a man- portable radiation detector and mapping system (RADMAPS) which integrates the accumulation of radiation information with precise ground locations. RADMAPS provides field personnel with the ability to detect, locate, and characterize nuclear material at a site or facility by analyzing the gamma or neutron spectra and correlating them with position. the man-portable field unit records gamma or neutron count rate information and its location, along with date and time, using an embedded Global Positioning System (GPS). RADMAPS is an advancement in data fusion, integrating several off-the-shelf technologies with new computer software resulting in a system that is simple to deploy and provides information useful to field personnel in an easily understandable form. Decisions on subsequent actions can be made in the field to efficiently use available field resources. The technologies employed in this system include: recording GPS, radiation detection (typically scintillation detectors), pulse height analysis, analog-to-digital converters, removable solid-state (Flash or SRAM) memory cards, Geographic Information System (GIS) software and personal computers with CD-ROM supporting digital base maps. RADMAPS includes several field deployable data acquisition systems designed to simultaneously record radiation and geographic positions. This paper summarizes the capabilities of RADMAPS and some of the results of field tests performed with the system.

  5. A High shear stress segment along the San Andreas Fault: Inferences based on near-field stress direction and stress magnitude observations in the Carrizo Plain Area

    SciTech Connect (OSTI)

    Castillo, D. A., [Department of Geology and Geophysics, University of Adelaide (Australia); Younker, L.W. [Lawrence Livermore National Lab., CA (United States)

    1997-01-30T23:59:59.000Z

    Nearly 200 new in-situ determinations of stress directions and stress magnitudes near the Carrizo plain segment of the San Andreas fault indicate a marked change in stress state occurring within 20 km of this principal transform plate boundary. A natural consequence of this stress transition is that if the observed near-field ``fault-oblique`` stress directions are representative of the fault stress state, the Mohr-Coulomb shear stresses resolved on San Andreas sub-parallel planes are substantially greater than previously inferred based on fault-normal compression. Although the directional stress data and near-hydrostatic pore pressures, which exist within 15 km of the fault, support a high shear stress environment near the fault, appealing to elevated pore pressures in the fault zone (Byerlee-Rice Model) merely enhances the likelihood of shear failure. These near-field stress observations raise important questions regarding what previous stress observations have actually been measuring. The ``fault-normal`` stress direction measured out to 70 km from the fault can be interpreted as representing a comparable depth average shear strength of the principal plate boundary. Stress measurements closer to the fault reflect a shallower depth-average representation of the fault zone shear strength. If this is true, only stress observations at fault distances comparable to the seismogenic depth will be representative of the fault zone shear strength. This is consistent with results from dislocation monitoring where there is pronounced shear stress accumulation out to 20 km of the fault as a result of aseismic slip within the lower crust loading the upper locked section. Beyond about 20 km, the shear stress resolved on San Andreas fault-parallel planes becomes negligible. 65 refs., 15 figs.

  6. RESOLVED MAGNETIC FIELD MAPPING OF A MOLECULAR CLOUD USING GPIPS

    SciTech Connect (OSTI)

    Marchwinski, Robert C.; Pavel, Michael D.; Clemens, Dan P., E-mail: robmarch@bu.edu, E-mail: pavelmi@bu.edu, E-mail: clemens@bu.edu [Institute for Astrophysical Research, Boston University, 725 Commonwealth Ave, Boston, MA 02215 (United States)

    2012-08-20T23:59:59.000Z

    We present the first resolved map of plane-of-sky magnetic field strength for a quiescent molecular cloud. GRSMC 45.60+0.30 subtends 40 Multiplication-Sign 10 pc at a distance of 1.88 kpc, masses 16,000 M{sub Sun }, and exhibits no star formation. Near-infrared background starlight polarizations were obtained for the Galactic Plane Infrared Polarization Survey using the 1.8 m Perkins telescope and the Mimir instrument. The cloud area of 0.78 deg{sup 2} contains 2684 significant starlight polarizations for Two Micron All Sky Survey matched stars brighter than 12.5 mag in the H band. Polarizations are generally aligned with the cloud's major axis, showing an average position angle dispersion of 15 {+-} 2 Degree-Sign and polarization of 1.8 {+-} 0.6%. The polarizations were combined with Galactic Ring Survey {sup 13}CO spectroscopy and the Chandrasekhar-Fermi method to estimate plane-of-sky magnetic field strengths, with an angular resolution of 100 arcsec. The average plane-of-sky magnetic field strength across the cloud is 5.40 {+-} 0.04 {mu}G. The magnetic field strength map exhibits seven enhancements or 'magnetic cores'. These cores show an average magnetic field strength of 8.3 {+-} 0.9 {mu}G, radius of 1.2 {+-} 0.2 pc, intercore spacing of 5.7 {+-} 0.9 pc, and exclusively subcritical mass-to-flux ratios, implying their magnetic fields continue to suppress star formation. The magnetic field strength shows a power-law dependence on gas volume density, with slope 0.75 {+-} 0.02 for n{sub H{sub 2}} {>=}10 cm{sup -3}. This power-law index is identical to those in studies at higher densities, but disagrees with predictions for the densities probed here.

  7. Recency of Faulting and Neotechtonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range

    SciTech Connect (OSTI)

    Steven Wesnousky; S. John Caskey; John W. Bell

    2003-02-20T23:59:59.000Z

    We studied the role that earthquake faults play in redistributing stresses within in the earths crust near geothermal fields. The geographic foci of our study were the sites of geothermal plants in Dixie Valley, Beowawe, and Bradys Hot Springs, Nevada. Our initial results show that the past history of earthquakes has redistributed stresses at these 3 sites in a manner to open and maintain fluid pathways critical for geothermal development. The approach developed here during our pilot study provides an inexpensive approach to (1) better define the best locations to site geothermal wells within known geothermal fields and (2) to define the location of yet discovered geothermal fields which are not manifest at the surface by active geothermal springs. More specifically, our investigation shows that induced stress concentrations at the endpoints of normal fault ruptures appear to promote favorable conditions for hydrothermal activity in two ways. We conclude that an understanding of the spatial distribution of active faults and the past history of earthquakes on those faults be incorporated as a standard tool in geothermal exploration and in the siting of future boreholes in existing geothermal fields.

  8. FieldJournal : a mobile data collection and mapping applications for the pocketPCs

    E-Print Network [OSTI]

    Lai, Janet W

    2004-01-01T23:59:59.000Z

    FieldJournal is a mobile data collection and mapping application designed for the PocketPC brand of PDAs. It was built as an investigation into combining the data collection process and the mapping process of community ...

  9. 2MASS wide field extinction maps - I. The Pipe nebula

    E-Print Network [OSTI]

    Marco Lombardi; Joao Alves; Charles J. Lada

    2006-06-27T23:59:59.000Z

    We present a 8 deg x 6 deg, high resolution extinction map of the Pipe nebula using 4.5 million stars from the Two Micron All Sky Survey (2MASS) point source catalog. The use of NICER, a robust and optimal technique to map the dust column density, allows us to detect a Av = 0.5 mag extinction at a 3-sigma level with a 1 arcmin resolution. We find for the Pipe nebula a normal reddening law, E(J-H) = (1.85 +/- 0.15) E(H-K). We measure the cloud distance using Hipparchos and Tycho parallaxes, and obtain ~130 pc. This, together with the total estimated mass, 10^4 Msun, makes the Pipe the closest massive cloud complex to Earth. We compare the NICER extinction map to the NANTEN 12CO observations and derive with unprecedented accuracy the relationship between the near-infrared extinction and the 12CO column density and hence (indirectly) the 12CO X-factor, that we estimate to be 2.91 10^20 cm^-2 K^-1 km^-1 s in the range Av Pipe field. This represents a significant increase of the known numbers of such stars in the Galaxy. Our analysis confirms the power and simplicity of the color excess technique to study molecular clouds. The comparison with the NANTEN 12CO data corroborates the insensitivity of CO observations to low column densities (up to approximately 2 mag in Av), and shows also an irreducible uncertainty in the dust-CO correlation of about 1 mag of visual extinction.

  10. Hot Pot Detail - Evidence of Quaternary Faulting

    SciTech Connect (OSTI)

    Lane, Michael

    2013-06-27T23:59:59.000Z

    Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

  11. Hot Pot Detail - Evidence of Quaternary Faulting

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

    Lane, Michael

    Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

  12. Field Mapping At Valles Caldera - Sulphur Springs Geothermal...

    Open Energy Info (EERE)

    based on surface mapping of the caldera. References Roy A. Bailey, Robert Leland Smith, Clarence Samuel Ross (1969) Stratigraphic Nomenclature of Volcanic Rocks in the Jemez...

  13. Field Mapping At Valles Caldera - Redondo Geothermal Area (Bailey...

    Open Energy Info (EERE)

    based on surface mapping of the caldera. References Roy A. Bailey, Robert Leland Smith, Clarence Samuel Ross (1969) Stratigraphic Nomenclature of Volcanic Rocks in the Jemez...

  14. Phased Array Ultrasonic Sound Field Mapping in Cast Austenitic Stainless Steel

    SciTech Connect (OSTI)

    Crawford, Susan L.; Prowant, Matthew S.; Cinson, Anthony D.; Larche, Michael R.; Diaz, Aaron A.; Anderson, Michael T.

    2014-05-31T23:59:59.000Z

    This study maps the phased array-generated acoustic sound fields through three types of CASS microstructure in four specimens to quantitatively assess the beam formation effectiveness in these materials.

  15. Field testing of component-level model-based fault detection methods for mixing boxes and VAV fan systems

    SciTech Connect (OSTI)

    Xu, Peng; Haves, Philip

    2002-05-16T23:59:59.000Z

    An automated fault detection and diagnosis tool for HVAC systems is being developed, based on an integrated, life-cycle, approach to commissioning and performance monitoring. The tool uses component-level HVAC equipment models implemented in the SPARK equation-based simulation environment. The models are configured using design information and component manufacturers' data and then fine-tuned to match the actual performance of the equipment by using data measured during functional tests of the sort using in commissioning. This paper presents the results of field tests of mixing box and VAV fan system models in an experimental facility and a commercial office building. The models were found to be capable of representing the performance of correctly operating mixing box and VAV fan systems and detecting several types of incorrect operation.

  16. Area balance and strain in an extensional fault system: Strategies for improved oil recovery in fractured chalk, Gilbertown Field, southwestern Alabama. Final report, March 1996--September 1998

    SciTech Connect (OSTI)

    Pashin, J.C.; Raymond, D.E.; Rindsberg, A.K.; Alabi, G.G.; Carroll, R.E.; Groshong, R.H.; Jin, G.

    1998-12-01T23:59:59.000Z

    This project was designed to analyze the structure of Mesozoic and Tertiary strata in Gilbertown Field and adjacent areas to suggest ways in which oil recovery can be improved. The Eutaw Formation comprises 7 major flow units and is dominated by low-resistivity, low-contrast play that is difficult to characterize quantitatively. Selma chalk produces strictly from fault-related fractures that were mineralized as warm fluid migrated from deep sources. Resistivity, dipmeter, and fracture identification logs corroborate that deformation is concentrated in the hanging-wall drag zones. New area balancing techniques were developed to characterize growth strata and confirm that strain is concentrated in hanging-wall drag zones. Curvature analysis indicates that the faults contain numerous fault bends that influence fracture distribution. Eutaw oil is produced strictly from footwall uplifts, whereas Selma oil is produced from fault-related fractures. Clay smear and mineralization may be significant trapping mechanisms in the Eutaw Formation. The critical seal for Selma reservoirs, by contrast, is where Tertiary clay in the hanging wall is juxtaposed with poorly fractured Selma chalk in the footwall. Gilbertown Field can be revitalized by infill drilling and recompletion of existing wells. Directional drilling may be a viable technique for recovering untapped oil from Selma chalk. Revitalization is now underway, and the first new production wells since 1985 are being drilled in the western part of the field.

  17. BTA Magnet Field Map Archive and MAD Model

    SciTech Connect (OSTI)

    Glenn,J.W.

    2008-04-01T23:59:59.000Z

    This note publishes some and information that has resided in private files. The attached tables were provided by Joseph Skelly from his archives. They show magnetic field measurements versus excitation current for the Booster to AGS transfer line quadrupoles and dipoles based on field measurements [we believe] were done by the Magnet Division. Also given are Ed Blesser's fifth order fits of field versus current. The results are given in 'Tesla' or T-M/M. These tables are attached to provide an archive of this data. The MAD model of the BTA line does have the same values as shown in the attached fits so the transfer was correct. MAD uses as its 'gradient' for quads Tesla per meter normalized to rigidity [B-rho]. The model of the BTA line in use uses the T-M/M given in the tables divided by the length to give T M which is then normalized by Brho. Thus, the input to the model appears to be correct. The original model is also attached as part of a memo by Skelly describing it.

  18. Development of Hydrologic Characterization Technology of Fault Zones

    SciTech Connect (OSTI)

    Karasaki, Kenzi; Onishi, Tiemi; Wu, Yu-Shu

    2008-03-31T23:59:59.000Z

    Through an extensive literature survey we find that there is very limited amount of work on fault zone hydrology, particularly in the field using borehole testing. The common elements of a fault include a core, and damage zones. The core usually acts as a barrier to the flow across it, whereas the damage zone controls the flow either parallel to the strike or dip of a fault. In most of cases the damage zone isthe one that is controlling the flow in the fault zone and the surroundings. The permeability of damage zone is in the range of two to three orders of magnitude higher than the protolith. The fault core can have permeability up to seven orders of magnitude lower than the damage zone. The fault types (normal, reverse, and strike-slip) by themselves do not appear to be a clear classifier of the hydrology of fault zones. However, there still remains a possibility that other additional geologic attributes and scaling relationships can be used to predict or bracket the range of hydrologic behavior of fault zones. AMT (Audio frequency Magneto Telluric) and seismic reflection techniques are often used to locate faults. Geochemical signatures and temperature distributions are often used to identify flow domains and/or directions. ALSM (Airborne Laser Swath Mapping) or LIDAR (Light Detection and Ranging) method may prove to be a powerful tool for identifying lineaments in place of the traditional photogrammetry. Nonetheless not much work has been done to characterize the hydrologic properties of faults by directly testing them using pump tests. There are some uncertainties involved in analyzing pressure transients of pump tests: both low permeability and high permeability faults exhibit similar pressure responses. A physically based conceptual and numerical model is presented for simulating fluid and heat flow and solute transport through fractured fault zones using a multiple-continuum medium approach. Data from the Horonobe URL site are analyzed to demonstrate the proposed approach and to examine the flow direction and magnitude on both sides of a suspected fault. We describe a strategy for effective characterization of fault zone hydrology. We recommend conducting a long term pump test followed by a long term buildup test. We do not recommend isolating the borehole into too many intervals. We do recommend ensuring durability and redundancy for long term monitoring.

  19. Field imaging spectroscopy and inferring a blind thrust earthquake history from secondary faulting : 1944 San Juan Earthquake, Argentina

    E-Print Network [OSTI]

    Ragona, Daniel Eduardo

    2007-01-01T23:59:59.000Z

    faults in the eastern Precordillera of western Argentina.la Asociacin Geolgica Argentina. Molnar, P. , E. T. Brown,laAsociacio?n Geolo?gica Argentina, v. 57, no. 1, p. 45-54.

  20. MARKOV RANDOM FIELD IMAGE PRIOR MODELS FOR MAP RECONSTRUCTION OF MAGNETOENCEPHALOGRAM IMAGES

    E-Print Network [OSTI]

    Wirthlin, Michael J.

    MARKOV RANDOM FIELD IMAGE PRIOR MODELS FOR MAP RECONSTRUCTION OF MAGNETOENCEPHALOGRAM IMAGES Brian as a classical inverse imaging prob- lem, which for MEG is notoriously ill posed and requires strong sam- ple grid. The second model permits simulating an MRF over the non-uniform grid required

  1. Perturb-and-MAP Random Fields: Using Discrete Optimization to Learn and Sample from Energy Models

    E-Print Network [OSTI]

    Yuille, Alan L.

    Perturb-and-MAP Random Fields: Using Discrete Optimization to Learn and Sample from Energy Models, the deterministic viewpoint on MRF modeling as energy minimization problem has im- portant limitations as it does bridge the gap be- tween the probabilistic and the energy minimization ap- proaches to MRF modeling. We

  2. Maps

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the Nanoscale Landscape Print For the firstMaps Sign In About |

  3. Maps

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region serviceMissionreal-time informationScience &Maps Maps Los

  4. Mechanical properties and fabric of the Punchbowl fault zone, California

    E-Print Network [OSTI]

    Chester, Frederick Michael

    1983-01-01T23:59:59.000Z

    ) identification of source rocks and sediment transport directions for sedimentary rock units (Larsen, 1959; Pelka, 1971; Robinson and Woodburne, 1971; Woodburne and Golz, 1972; Farley and Ehlig, 1977; Barrows, 1979), and (3) regional mapping and correlation... at Santa Barbara Chairman of Advisory Committee: John M. Logan Field observations and experimental rock deformation techniques are used to characterize the deformational fabric and relative mechanical properties of a portion of the Punchbowl fault zone...

  5. Far-field mapping of the longitudinal magnetic and electric optical fields C. Ecoffey, T. Grosjean

    E-Print Network [OSTI]

    Boyer, Edmond

    in various domains such as particle accel- eration [1], laser cutting [2], lithography [3], far-field [4

  6. Precise mapping of the magnetic field in the CMS barrel yoke using cosmic rays

    SciTech Connect (OSTI)

    Chatrchyan, S. [Yerevan Physics Institute (Aremenia); et al.,

    2010-03-01T23:59:59.000Z

    The CMS detector is designed around a large 4 T superconducting solenoid, enclosed in a 12000-tonne steel return yoke. A detailed map of the magnetic field is required for the accurate simulation and reconstruction of physics events in the CMS detector, not only in the inner tracking region inside the solenoid but also in the large and complex structure of the steel yoke, which is instrumented with muon chambers. Using a large sample of cosmic muon events collected by CMS in 2008, the field in the steel of the barrel yoke has been determined with a precision of 3 to 8% depending on the location.

  7. Ultrasonic Sound Field Mapping Through Coarse Grained Cast Austenitic Stainless Steel Components

    SciTech Connect (OSTI)

    Crawford, Susan L.; Prowant, Matthew S.; Cinson, Anthony D.; Larche, Michael R.; Diaz, Aaron A.

    2014-08-01T23:59:59.000Z

    The Pacific Northwest National Laboratory (PNNL) has been involved with nondestructive examination (NDE) of coarse-grained cast austenitic stainless steel (CASS) components for over 30 years. More recent work has focused on mapping the ultrasonic sound fields generated by low-frequency phased array probes that are typically used for the evaluation of CASS materials for flaw detection and characterization. The casting process results in the formation of large grained material microstructures that are nonhomogeneous and anisotropic. The propagation of ultrasonic energy for examination of these materials results in scattering, partitioning and redirection of these sound fields. The work reported here provides an assessment of sound field formation in these materials and provides recommendations on ultrasonic inspection parameters for flaw detection in CASS components.

  8. Field Mapping At Roosevelt Hot Springs Geothermal Area (Ward, Et Al., 1978)

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg| Open Energy Information Field Mapping

  9. Mapping residual stress fields from Vickers hardness indents using Raman microprobe spectroscopy

    SciTech Connect (OSTI)

    Sparks, R.G.; Enloe, W.S.; Paesler, M.A.

    1988-12-01T23:59:59.000Z

    Micro-Raman spectroscopy is used to map the residual stress fields in the vicinity of Vickers hardness indents. Both 514.5 and 488.0 nm, light is used to excite the effect and the resulting shifted and broadened Raman peaks are analyzed using computer deconvolution. Half-wave plates are used to vary the orientation of the incident later light`s polarization state with respect to crystal orientation. The Raman scattered light is then analyzed for polarization dependences which are indicative of the various components of the Raman scattering tensor. Such studies can yield valuable information about the orientation of stress components in a well known stress field. The results can then be applied to the determination of stress components in machined semiconductor materials.

  10. Evaluation of a Decoupling-Based Fault Detection and Diagnostic Technique - Part II: Field Evaluation and Application

    E-Print Network [OSTI]

    Li, H.; Braun, J.

    2006-01-01T23:59:59.000Z

    intent is to validate the DB FDD performance and demonstrate its applications. The first part focuses on sensitivity and robustness evaluation through controlled field emulation testing. In this paper, the technique is applied to a number of field sites...

  11. A model of the AGS based on stepwise ray-tracing through the measured field maps of the main magnets

    SciTech Connect (OSTI)

    Dutheil Y.; Meot, F.; Tsoupas, N.

    2012-05-20T23:59:59.000Z

    Two-dimensional mid-plane magnetic field maps of two of the main AGS magnets were produced, from Hall probe measurements, for a series of different current settings. The analysis of these data yielded the excitation functions [1] and the harmonic coefficients [2] of the main magnets which have been used so far in all the models of the AGS. The constant increase of the computation power makes it possible today to directly use a stepwise raytracing through these measured field maps with a reasonable computation time. We describe in detail how these field maps have allowed the generation of models of the 6 different types of AGS main magnets, and how they are being handled with the Zgoubi ray-tracing code [3]. We give and discuss a number of results obtained regarding both beam and spin dynamics in the AGS, and we provide comparisons with other numerical and analytical modelling methods.

  12. A novel digital tomosynthesis (DTS) reconstruction method using a deformation field map

    SciTech Connect (OSTI)

    Ren Lei; Zhang Junan; Thongphiew, Danthai; Godfrey, Devon J.; Jackie Wu, Q.; Zhou Sumin; Yin Fangfang [Department of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, North Carolina, 27710 (United States) and Duke Medical Physics Graduate Program, 2424 Erwin Road Suite 101, Durham, North Carolina 27705 (United States); Department of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, North Carolina 27710 (United States); Department of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, North Carolina, 27710 (United States) and Duke Medical Physics Graduate Program, 2424 Erwin Road Suite 101, Durham, North Carolina 27705 (United States)

    2008-07-15T23:59:59.000Z

    We developed a novel digital tomosynthesis (DTS) reconstruction method using a deformation field map to optimally estimate volumetric information in DTS images. The deformation field map is solved by using prior information, a deformation model, and new projection data. Patients' previous cone-beam CT (CBCT) or planning CT data are used as the prior information, and the new patient volume to be reconstructed is considered as a deformation of the prior patient volume. The deformation field is solved by minimizing bending energy and maintaining new projection data fidelity using a nonlinear conjugate gradient method. The new patient DTS volume is then obtained by deforming the prior patient CBCT or CT volume according to the solution to the deformation field. This method is novel because it is the first method to combine deformable registration with limited angle image reconstruction. The method was tested in 2D cases using simulated projections of a Shepp-Logan phantom, liver, and head-and-neck patient data. The accuracy of the reconstruction was evaluated by comparing both organ volume and pixel value differences between DTS and CBCT images. In the Shepp-Logan phantom study, the reconstructed pixel signal-to-noise ratio (PSNR) for the 60 deg. DTS image reached 34.3 dB. In the liver patient study, the relative error of the liver volume reconstructed using 60 deg. projections was 3.4%. The reconstructed PSNR for the 60 deg. DTS image reached 23.5 dB. In the head-and-neck patient study, the new method using 60 deg. projections was able to reconstruct the 8.1 deg. rotation of the bony structure with 0.0 deg. error. The reconstructed PSNR for the 60 deg. DTS image reached 24.2 dB. In summary, the new reconstruction method can optimally estimate the volumetric information in DTS images using 60 deg. projections. Preliminary validation of the algorithm showed that it is both technically and clinically feasible for image guidance in radiation therapy.

  13. Ultrasonic Phased Array Sound Field Mapping Through Large-Bore Coarse Grained Cast Austenitic Stainless Steel (CASS) Piping Materials

    SciTech Connect (OSTI)

    Cinson, Anthony D.; Crawford, Susan L.; Prowant, Matthew S.; Diaz, Aaron A.; Hathaway, John E.; Anderson, Michael T.

    2012-04-16T23:59:59.000Z

    A sound field beam mapping exercise was conducted to further understand the effects of coarse grained microstructures found in CASS materials on phased array ultrasonic wave propagation. Laboratory measurements were made on three CASS specimens with different microstructures; the specimens were polished and etched to reveal measurable grain sizes, shapes and orientations. Three longitudinal, phased array probes were fixed on a specimen's outside diameter with the sound field directed toward one end (face) of the pipe segment over a fixed range of angles. A point receiver was raster scanned over the surface of the specimen face generating a sound field image. A slice of CASS material was then removed from the specimen end and the beam mapping exercise repeated. The sound fields acquired were analyzed for spot size, coherency, and beam redirection. Analyses were conducted between the resulting sound fields and the microstructural characteristics of each specimen.

  14. The effect of fault relayand clay smearing on groundwater flow patterns in the Lower Rhine

    E-Print Network [OSTI]

    Bense, Victor

    in the unconsolidated sediments of the Lower Rhine Embayment. Hydraulic head maps show that many individual faults form unconsolidated sediments at shal- low depth is likely to be di¡erent from that of faults at depths where rocks

  15. Field mapping by off-axis electron holography: from devices to the detection of single dopant atoms.

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Field mapping by off-axis electron holography: from devices to the detection of single dopant atoms. 3. Ernst-Ruska Center for Microscopy and Spectroscopy with Electrons, Research Centre Julich, D-52425 Julich, Germany. david.cooper@cea.fr Keywords: electron holography, dopant potentials, strain

  16. Physiochemical Evidence of Faulting Processes and Modeling of Fluid in Evolving Fault Systems in Southern California

    SciTech Connect (OSTI)

    Boles, James [Professor

    2013-05-24T23:59:59.000Z

    Our study targets recent (Plio-Pleistocene) faults and young (Tertiary) petroleum fields in southern California. Faults include the Refugio Fault in the Transverse Ranges, the Ellwood Fault in the Santa Barbara Channel, and most recently the Newport- Inglewood in the Los Angeles Basin. Subsurface core and tubing scale samples, outcrop samples, well logs, reservoir properties, pore pressures, fluid compositions, and published structural-seismic sections have been used to characterize the tectonic/diagenetic history of the faults. As part of the effort to understand the diagenetic processes within these fault zones, we have studied analogous processes of rapid carbonate precipitation (scaling) in petroleum reservoir tubing and manmade tunnels. From this, we have identified geochemical signatures in carbonate that characterize rapid CO2 degassing. These data provide constraints for finite element models that predict fluid pressures, multiphase flow patterns, rates and patterns of deformation, subsurface temperatures and heat flow, and geochemistry associated with large fault systems.

  17. Global mapping and characterization of Titan's dune fields with Cassini: Correlation between RADAR and VIMS observations

    E-Print Network [OSTI]

    Narteau, Clément

    and VIMS observations S. Rodriguez a, , A. Garcia a , A. Lucas a , T. Appéré a , A. Le Gall b , E. Reffet the Cassini RADAR and VIMS (Visual and Infrared Mapping Spectrometer) images ­ the latter being empirically. Furthermore, the strong correlation between RADAR-mapped dunes and the VIMS ``dark brown'' unit (72%) allows

  18. Fault current limiter

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2013-10-08T23:59:59.000Z

    A fault current limiter (FCL) includes a series of high permeability posts for collectively define a core for the FCL. A DC coil, for the purposes of saturating a portion of the high permeability posts, surrounds the complete structure outside of an enclosure in the form of a vessel. The vessel contains a dielectric insulation medium. AC coils, for transporting AC current, are wound on insulating formers and electrically interconnected to each other in a manner such that the senses of the magnetic field produced by each AC coil in the corresponding high permeability core are opposing. There are insulation barriers between phases to improve dielectric withstand properties of the dielectric medium.

  19. FIRST SYNOPTIC MAPS OF PHOTOSPHERIC VECTOR MAGNETIC FIELD FROM SOLIS/VSM: NON-RADIAL MAGNETIC FIELDS AND HEMISPHERIC PATTERN OF HELICITY

    SciTech Connect (OSTI)

    Gosain, S.; Pevtsov, A. A. [National Solar Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Rudenko, G. V.; Anfinogentov, S. A. [Institute of Solar-Terrestrial Physics (ISTP), Russian Academy of Sciences, Irkutsk (Russian Federation)

    2013-07-20T23:59:59.000Z

    We use daily full-disk vector magnetograms from Vector Spectromagnetograph on Synoptic Optical Long-term Investigations of the Sun system to synthesize the first Carrington maps of the photospheric vector magnetic field. We describe these maps and make a comparison of the observed radial field with the radial field estimate from line-of-sight magnetograms. Furthermore, we employ these maps to study the hemispheric pattern of current helicity density, H{sub c} , during the rising phase of solar cycle 24. The longitudinal average over the 23 consecutive solar rotations shows a clear signature of the hemispheric helicity rule, i.e., H{sub c} is predominantly negative in the north and positive in the south. Although our data include the early phase of cycle 24, there appears to be no evidence for a possible (systematic) reversal of the hemispheric helicity rule at the beginning of the cycle as predicted by some dynamo models. Furthermore, we compute the hemispheric pattern in active region latitudes (-30 Degree-Sign {<=} {theta} {<=} 30 Degree-Sign ) separately for weak (100 G < |B{sub r} | < 500 G) and strong (|B{sub r} | > 1000 G) radial magnetic fields. We find that while the current helicity of strong fields follows the well-known hemispheric rule (i.e., {theta} {center_dot} H{sub c} < 0), H{sub c} of weak fields exhibits an inverse hemispheric behavior (i.e., {theta} {center_dot} H{sub c} > 0), albeit with large statistical scatter. We discuss two plausible scenarios to explain the opposite hemispheric trend of helicity in weak and strong field regions.

  20. E-Print Network 3.0 - atera fault central Sample Search Results

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

    The Netherlands ABSTRACT Faults strongly impact groundwater ow... in the unconsolidated sediments of the Lower Rhine Embayment. Hydraulic head maps show that many...

  1. Controls on Fault-Hosted Fluid Flow: Preliminary Results from...

    Open Energy Info (EERE)

    Results from the Coso Geothermal Field, CA Abstract cap rock, permeability, fault, fracture, clay, Coso Authors Davatzes, N.C.; Hickman and S.H. Published Geothermal Resource...

  2. Self-triggering superconducting fault current limiter

    DOE Patents [OSTI]

    Yuan, Xing (Albany, NY); Tekletsadik, Kasegn (Rexford, NY)

    2008-10-21T23:59:59.000Z

    A modular and scaleable Matrix Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. The matrix fault current limiter comprises a fault current limiter module that includes a superconductor which is electrically coupled in parallel with a trigger coil, wherein the trigger coil is magnetically coupled to the superconductor. The current surge doing a fault within the electrical power network will cause the superconductor to transition to its resistive state and also generate a uniform magnetic field in the trigger coil and simultaneously limit the voltage developed across the superconductor. This results in fast and uniform quenching of the superconductors, significantly reduces the burnout risk associated with non-uniformity often existing within the volume of superconductor materials. The fault current limiter modules may be electrically coupled together to form various "n" (rows).times."m" (columns) matrix configurations.

  3. Wide-Field Lensing Mass Maps from DES Science Verification Data

    E-Print Network [OSTI]

    Vikram, V; Jain, B; Bacon, D; Amara, A; Becker, M; Bernstein, G; Bonnett, C; Bridle, S; Brout, D; Busha, M; Frieman, J; Gaztanaga, E; Hartley, W; Jarvis, M; Kacprzak, T; Lahav, O; Leistedt, B; Lin, H; Melchior, P; Peiris, H; Rozo, E; Rykoff, E; Sanchez, C; Sheldon, E; Troxel, M; Wechsler, R; Zuntz, J; Abbott, T; Abdalla, F B; Armstrong, R; Banerji, M; Bauer, A H; Benoit-Levy, A; Bertin, E; Brooks, D; Buckley-Geer, E; Burke, D L; Capozzi, D; Rosell, A Carnero; Kind, M Carrasco; Castander, F J; Crocce, M; D'Andrea, C B; da Costa, L N; DePoy, D L; Desai, S; Diehl, H T; Dietrich, J P; Cunha, C E; Estrada, J; Evrard, A E; Neto, A Fausti; Fernandez, E; Flaugher, B; Fosalba, P; Gerdes, D; Gruen, D; Gruendl, R A; Honscheid, K; James, D; Kent, S; Kuehn, K; Kuropatkin, N; Li, T S; Maia, M A G; Makler, M; March, M; Marshall, J; Martini, Paul; Merritt, K W; Miller, C J; Miquel, R; Neilsen, E; Nichol, R C; Nord, B; Ogando, R; Plazas, A A; Romer, A K; Roodman, A; Sanchez, E; Scarpine, V; Sevilla, I; Smith, R C; Soares-Santos, M; Sobreira, F; Suchyta, E; Swanson, M E C; Tarle, G; Thaler, J; Thomas, D; Walker, A R; Weller, J

    2015-01-01T23:59:59.000Z

    Weak gravitational lensing allows one to reconstruct the spatial distribution of the projected mass density across the sky. These "mass maps" provide a powerful tool for studying cosmology as they probe both luminous and dark matter. In this paper, we present a weak lensing mass map reconstructed from shear measurements in a 139 deg^2 area from the Dark Energy Survey (DES) Science Verification (SV) data overlapping with the South Pole Telescope survey. We compare the distribution of mass with that of the foreground distribution of galaxies and clusters. The overdensities in the reconstructed map correlate well with the distribution of optically detected clusters. Cross-correlating the mass map with the foreground galaxies from the same DES SV data gives results consistent with mock catalogs that include the primary sources of statistical uncertainties in the galaxy, lensing, and photo-z catalogs. The statistical significance of the cross-correlation is at the 6.8 sigma level with 20 arcminute smoothing. A maj...

  4. Analysis of the growth of strike-slip faults using effective medium theory

    SciTech Connect (OSTI)

    Aydin, A.; Berryman, J.G.

    2009-10-15T23:59:59.000Z

    Increases in the dimensions of strike-slip faults including fault length, thickness of fault rock and the surrounding damage zone collectively provide quantitative definition of fault growth and are commonly measured in terms of the maximum fault slip. The field observations indicate that a common mechanism for fault growth in the brittle upper crust is fault lengthening by linkage and coalescence of neighboring fault segments or strands, and fault rock-zone widening into highly fractured inner damage zone via cataclastic deformation. The most important underlying mechanical reason in both cases is prior weakening of the rocks surrounding a fault's core and between neighboring fault segments by faulting-related fractures. In this paper, using field observations together with effective medium models, we analyze the reduction in the effective elastic properties of rock in terms of density of the fault-related brittle fractures and fracture intersection angles controlled primarily by the splay angles. Fracture densities or equivalent fracture spacing values corresponding to the vanishing Young's, shear, and quasi-pure shear moduli were obtained by extrapolation from the calculated range of these parameters. The fracture densities or the equivalent spacing values obtained using this method compare well with the field data measured along scan lines across the faults in the study area. These findings should be helpful for a better understanding of the fracture density/spacing distribution around faults and the transition from discrete fracturing to cataclastic deformation associated with fault growth and the related instabilities.

  5. Map-making in small field modulated CMB polarisation experiments: approximating the maximum-likelihood method

    E-Print Network [OSTI]

    D. Sutton; B. R. Johnson; M. L. Brown; P. Cabella; P. G. Ferreira; K. M. Smith

    2008-07-23T23:59:59.000Z

    Map-making presents a significant computational challenge to the next generation of kilopixel CMB polarisation experiments. Years worth of time ordered data (TOD) from thousands of detectors will need to be compressed into maps of the T, Q and U Stokes parameters. Fundamental to the science goal of these experiments, the observation of B-modes, is the ability to control noise and systematics. In this paper, we consider an alternative to the maximum-likelihood method, called destriping, where the noise is modelled as a set of discrete offset functions and then subtracted from the time-stream. We compare our destriping code (Descart: the DEStriping CARTographer) to a full maximum-likelihood map-maker, applying them to 200 Monte-Carlo simulations of time-ordered data from a ground based, partial-sky polarisation modulation experiment. In these simulations, the noise is dominated by either detector or atmospheric 1/f noise. Using prior information of the power spectrum of this noise, we produce destriped maps of T, Q and U which are negligibly different from optimal. The method does not filter the signal or bias the E or B-mode power spectra. Depending on the length of the destriping baseline, the method delivers between 5 and 22 times improvement in computation time over the maximum-likelihood algorithm. We find that, for the specific case of single detector maps, it is essential to destripe the atmospheric 1/f in order to detect B-modes, even though the Q and U signals are modulated by a half-wave plate spinning at 5-Hz.

  6. Mapping Diffuse Seismicity for Geothermal Reservoir Management with Matched Field Processing

    Broader source: Energy.gov [DOE]

    Project objective: to detect and locate more microearthquakes observed during EGS operations using the matched field processing (MFP) technique.

  7. Phased Array Ultrasonic Sound Field Mapping through Large-Bore Coarse Grained Cast Austenitic Stainless Steel (CASS) Components

    SciTech Connect (OSTI)

    Crawford, Susan L.; Cinson, Anthony D.; Prowant, Matthew S.; Coble, Jamie B.; Diaz, Aaron A.; Anderson, Michael T.

    2012-09-01T23:59:59.000Z

    A sound field beam mapping exercise was conducted to assist in understanding the effects of coarse-grained microstructures found in cast austenitic stainless steel (CASS) materials on acoustic longitudinal wave propagation. Ultrasonic laboratory measurements were made on three specimens representing four different grain structures. Phased array (PA) probes were fixed on each specimen surface and excited in the longitudinal mode at specific angles while a point receiver was scanned in a raster pattern over the end of the specimen, generating a transmitted sound field image. Three probes operating at nominal frequencies of 0.5, 0.8, and 1.0 MHz were used. A 6.4 mm (0.25-in.) thick slice was removed from the specimen end and beam mapping was repeated three times, yielding four full sets of beam images. Data were collected both with a constant part path for each configuration (probe, specimen and slice, angle, etc.) and with a variable part path (fixed position on the surface). The base specimens and slices were then polished and etched to reveal measureable grain microstructures that were compared to the sound field interactions and scattering effects seen in the collected data.

  8. Detailed Geophysical Fault Characterization in Yucca Flat, Nevada Test Site, Nevada

    SciTech Connect (OSTI)

    Theodore H. Asch; Donald Sweetkind; Bethany L. Burton; Erin L. Wallin

    2009-02-10T23:59:59.000Z

    Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada. Between the years 1951 and 1992, 659 underground nuclear tests took place in Yucca Flat; most were conducted in large, vertical excavations that penetrated alluvium and the underlying Cenozoic volcanic rocks. Radioactive and other potential chemical contaminants at the NTS are the subject of a long-term program of investigation and remediation by the U.S. Department of Energy (DOE), National Nuclear Security Administration, Nevada Site Office, under its Environmental Restoration Program. As part of the program, the DOE seeks to assess the extent of contamination and to evaluate the potential risks to humans and the environment from byproducts of weapons testing. To accomplish this objective, the DOE Environmental Restoration Program is constructing and calibrating a ground-water flow model to predict hydrologic flow in Yucca Flat as part of an effort to quantify the subsurface hydrology of the Nevada Test Site. A necessary part of calibrating and evaluating a model of the flow system is an understanding of the location and characteristics of faults that may influence ground-water flow. In addition, knowledge of fault-zone architecture and physical properties is a fundamental component of the containment of the contamination from underground nuclear tests, should such testing ever resume at the Nevada Test Site. The goal of the present investigation is to develop a detailed understanding of the geometry and physical properties of fault zones in Yucca Flat. This study was designed to investigate faults in greater detail and to characterize fault geometry, the presence of fault splays, and the fault-zone width. Integrated geological and geophysical studies have been designed and implemented to work toward this goal. This report describes the geophysical surveys conducted near two drill holes in Yucca Flat, the data analyses performed, and the integrated interpretations developed from the suite of geophysical methodologies utilized in this investigation. Data collection for this activity started in the spring of 2005 and continued into 2006. A suite of electrical geophysical surveys were run in combination with ground magnetic surveys; these surveys resulted in high-resolution subsurface data that portray subsurface fault geometry at the two sites and have identified structures not readily apparent from surface geologic mapping, potential field geophysical data, or surface effects fracture maps.

  9. Remote Methodology used at B Plant Hanford to Map High Radiation and Contamination Fields and Document Remaining Hazards

    SciTech Connect (OSTI)

    SIMMONS, F.M.

    2000-01-01T23:59:59.000Z

    A remote radiation mapping system using the Gammacam{trademark} (AIL Systems Inc. Trademark) with real-time response was used in deactivating the B Plant at Hanford to produce digitized images showing actual radiation fields and dose rates. Deployment of this technology has significantly reduced labor requirements, decreased personnel exposure, and increased the accuracy of the measurements. Personnel entries into the high radiation/contamination areas was minimized for a dose savings of 30 Rem (.3 Seivert) and a cost savings of $640K. In addition, the data gathered was utilized along with historical information to estimate the amount of remaining hazardous waste in the process cells. The B Plant facility is a canyon facility containing 40 process cells which were used to separate cesium and strontium from high level waste. The cells and vessels are contaminated with chemicals used in the separation and purification processes. Most of the contaminants have been removed but the residual contamination from spills in the cells and heels in the tanks contribute to the localized high radioactivity. The Gammacam{trademark} system consists of a high density terbium-activated scintillating glass detector coupled with a digitized video camera. Composite images generated by the system are presented in pseudo color over a black and white image. Exposure times can be set from 10 milliseconds to 1 hour depending on the field intensity. This information coupled with process knowledge is then used to document the hazardous waste remaining in each cell. Additional uses for this radiation mapping system would be in support of facilities stabilization and deactivation activities at Hanford or other DOE sites. The system is currently scheduled for installation and mapping of the U Plant in 1999. This system is unique due to its portability and its suitability for use in high dose rate areas.

  10. Weed Mapping in Early-Season Maize Fields Using Object-Based Analysis of Unmanned Aerial Vehicle (UAV) Images

    E-Print Network [OSTI]

    Kelly, Maggi

    2013-01-01T23:59:59.000Z

    a weed infestation map in a grid structure. The estimationImages of a weed coverage map in a grid framework adapted toof a weed infestation map in a grid structure. A flowchart

  11. Near-Surface Microearthquakes at The Geysers Geothermal Field, California James T. Rutledge

    E-Print Network [OSTI]

    by hydraulic fracturing can be mapped using the microearthquakes induced during the treatment. Barton et al Nambe Geophysical, Inc., Route 1 Box 104F, Santa Fe, NM 87501 Timothy D. Anderson Sonoma County Water of a major surface lineaments observed over the productive field. However, clear fault or fracture planes

  12. Microwave Mapping As a Possible New Diagnostic Tool for LargeScale Solar Magnetic Fields

    E-Print Network [OSTI]

    Petrovay, Kristóf

    , they are able to give a general impression of the nature and order of magnitude of the expected effects (where the field values used for the construction of synoptic charts are measured) this component with the synoptic magnetic charts and in terms of quantitative details they still have some deficiencies

  13. CROSS SECTIONS AND FIELD MAPS: CHEROKEE AND BUG FIELDS, SAN JUAN COUNTY, UTAH, AND LITTLE UTE AND SLEEPING UTE FIELDS, MONTEZUMA COUNTY, COLORADO

    SciTech Connect (OSTI)

    Thomas C. Chidsey Jr; Craig D. Morgan; Kevin McClure; David E. Eby; Laura L. Wray

    2003-12-01T23:59:59.000Z

    Over 400 million barrels (64 million m{sup 3}) of oil have been produced from the shallow-shelf carbonate reservoirs in the Pennsylvanian (Desmoinesian) Paradox Formation in the Paradox Basin, Utah and Colorado. With the exception of the giant Greater Aneth field, the other 100 plus oil fields in the basin typically contain 2 to 10 million barrels (0.3-1.6 million m{sup 3}) of original oil in place. Most of these fields are characterized by high initial production rates followed by a very short productive life (primary), and hence premature abandonment. Only 15 to 25 percent of the original oil in place is recoverable during primary production from conventional vertical wells. An extensive and successful horizontal drilling program has been conducted in the giant Greater Aneth field. However, to date, only two horizontal wells have been drilled in small Ismay and Desert Creek fields. The results from these wells were disappointing due to poor understanding of the carbonate facies and diagenetic fabrics that create reservoir heterogeneity. These small fields, and similar fields in the basin, are at high risk of premature abandonment. At least 200 million barrels (31.8 million m{sup 3}) of oil will be left behind in these small fields because current development practices leave compartments of the heterogeneous reservoirs undrained. Through proper geological evaluation of the reservoirs, production may be increased by 20 to 50 percent through the drilling of low-cost single or multilateral horizontal legs from existing vertical development wells. In addition, horizontal drilling from existing wells minimizes surface disturbances and costs for field development, particularly in the environmentally sensitive areas of southeastern Utah and southwestern Colorado.

  14. Field Mapping At Salt Wells Area (Coolbaugh, Et Al., 2006) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg| Open Energy Information Field

  15. Field Mapping At San Emidio Desert Area (DOE GTP) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg| Open Energy Information FieldSan

  16. Solar system fault detection

    DOE Patents [OSTI]

    Farrington, R.B.; Pruett, J.C. Jr.

    1984-05-14T23:59:59.000Z

    A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

  17. Solar system fault detection

    DOE Patents [OSTI]

    Farrington, Robert B. (Wheatridge, CO); Pruett, Jr., James C. (Lakewood, CO)

    1986-01-01T23:59:59.000Z

    A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

  18. Austin chalk fracture mapping using frequency data derived from seismic data

    E-Print Network [OSTI]

    Najmuddin, Ilyas Juzer

    2004-09-30T23:59:59.000Z

    good correlation with the faults interpreted on the top of Austin Chalk reflector. Production data in Burleson County (Giddings Field) is a proxy for fracturing. Values of t* mapped on the 2D data have a good correlation with the cumulative... ATTENUATION OF AMPLITUDES: A FRACTURE INDICATOR ?t*????????????????????... .21 Procedure???????????????????????????22 Discussion of Noise in the Data??????????????????. 26 Discussion of t* Attribute Values (Fracture Indicator)???. ?????? 27...

  19. SEISMIC INVESTIGATION OF WRENCH FAULTING AND FRACTURING AT RULISON

    E-Print Network [OSTI]

    to gas production at Rulison. Fracture zones are associated with fault trends and areas of deformation networks that help determine gas migration and accumulation. This thesis presents the characterization of the complex wrench fault network at Rulison Field, and its linkage to enhanced natural fracture zones. Rulison

  20. Similarity Matching Techniques for Fault Diagnosis in Automotive Infotainment Electronics

    E-Print Network [OSTI]

    Kabir, Mashud

    2009-01-01T23:59:59.000Z

    Fault diagnosis has become a very important area of research during the last decade due to the advancement of mechanical and electrical systems in industries. The automobile is a crucial field where fault diagnosis is given a special attention. Due to the increasing complexity and newly added features in vehicles, a comprehensive study has to be performed in order to achieve an appropriate diagnosis model. A diagnosis system is capable of identifying the faults of a system by investigating the observable effects (or symptoms). The system categorizes the fault into a diagnosis class and identifies a probable cause based on the supplied fault symptoms. Fault categorization and identification are done using similarity matching techniques. The development of diagnosis classes is done by making use of previous experience, knowledge or information within an application area. The necessary information used may come from several sources of knowledge, such as from system analysis. In this paper similarity matching tec...

  1. Mapping and ranking flow units in reef and shoal reservoirs associated with paleohighs: upper Jurassic (Oxfordian) Smackover Formation, Appleton and Vocation Fields, Escambia and Monroe Counties, Alabama

    E-Print Network [OSTI]

    Morgan, Dylan

    2003-01-01T23:59:59.000Z

    to the flanks of the topographic high. Figure 3. Fluid production history of the Appleton and Vocation fields. . . . . Figure 4. Black box shows the location of the future Gulf of Mexico basin within a larger view of Pangea. . 10 Figure 5. Regional map... basin. . . . . . . . . . . 14 Figure 7. Extent of Smackover deposits in the United States. . . . . . . . . 1 5 Figure g. Type log showing log responses to lithofacies in Appleton and Vocation fields. . 19 Fiyire 9. Ahr's integrated triangle diagram...

  2. THE EFFECT OF LIMITED SPATIAL RESOLUTION OF STELLAR SURFACE MAGNETIC FIELD MAPS ON MAGNETOHYDRODYNAMIC WIND AND CORONAL X-RAY EMISSION MODELS

    SciTech Connect (OSTI)

    Garraffo, C.; Cohen, O.; Drake, J. J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St. Cambridge, MA 02138 (United States)] [Harvard-Smithsonian Center for Astrophysics, 60 Garden St. Cambridge, MA 02138 (United States); Downs, C. [Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Dr., Honolulu, HI 96822 (United States)] [Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Dr., Honolulu, HI 96822 (United States)

    2013-02-10T23:59:59.000Z

    We study the influence of the spatial resolution on scales of 5 Degree-Sign and smaller of solar surface magnetic field maps on global magnetohydrodynamic solar wind models, and on a model of coronal heating and X-ray emission. We compare the solutions driven by a low-resolution Wilcox Solar Observatory magnetic map, the same map with spatial resolution artificially increased by a refinement algorithm, and a high-resolution Solar and Heliospheric Observatory Michelson Doppler Imager map. We find that both the wind structure and the X-ray morphology are affected by the fine-scale surface magnetic structure. Moreover, the X-ray morphology is dominated by the closed loop structure between mixed polarities on smaller scales and shows significant changes between high- and low-resolution maps. We conclude that three-dimensional modeling of coronal X-ray emission has greater surface magnetic field spatial resolution requirements than wind modeling, and can be unreliable unless the dominant mixed polarity magnetic flux is properly resolved.

  3. Transition-fault test generation

    E-Print Network [OSTI]

    Cobb, Bradley Douglas

    2013-02-22T23:59:59.000Z

    . One way to detect these timing defects is to apply test patterns to the integrated circuit that are generated using the transition-fault model. Unfortunately, industry's current transition-fault test generation schemes produce test sets that are too...

  4. Optimal fault location

    E-Print Network [OSTI]

    Knezev, Maja

    2009-05-15T23:59:59.000Z

    for the pre-selected time out to pass and initiate reclosing again. If after selected number of attempts of reclosing, fault is still present, breaker lockout is taking place. There will be no more attempts to reclose automatically the breaker again....2: Trip and reclose sequences on a single breaker In the case of breaker lockout the assumption taken by the operators is that fault is permanent. Special order is issued to the maintenance for the breaker to be closed back in 4 again once...

  5. Optimal fault location

    E-Print Network [OSTI]

    Knezev, Maja

    2008-10-10T23:59:59.000Z

    for the pre-selected time out to pass and initiate reclosing again. If after selected number of attempts of reclosing, fault is still present, breaker lockout is taking place. There will be no more attempts to reclose automatically the breaker again....2: Trip and reclose sequences on a single breaker In the case of breaker lockout the assumption taken by the operators is that fault is permanent. Special order is issued to the maintenance for the breaker to be closed back in 4 again once...

  6. Computer hardware fault administration

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

    2010-09-14T23:59:59.000Z

    Computer hardware fault administration carried out in a parallel computer, where the parallel computer includes a plurality of compute nodes. The compute nodes are coupled for data communications by at least two independent data communications networks, where each data communications network includes data communications links connected to the compute nodes. Typical embodiments carry out hardware fault administration by identifying a location of a defective link in the first data communications network of the parallel computer and routing communications data around the defective link through the second data communications network of the parallel computer.

  7. Weed Mapping in Early-Season Maize Fields Using Object-Based Analysis of Unmanned Aerial Vehicle (UAV) Images

    E-Print Network [OSTI]

    Kelly, Maggi

    2013-01-01T23:59:59.000Z

    10 | e77151 Weed Maps with UAV Images References 1. ECPA (of unmanned aerial vehicle (UAV) imagery for rangelandUnmanned Aerial Vehicle (UAV) for Early Site Specific Weed

  8. Fault Locating, Prediction and Protection (FLPPS)

    SciTech Connect (OSTI)

    Yinger, Robert, J.; Venkata, S., S.; Centeno, Virgilio

    2010-09-30T23:59:59.000Z

    One of the main objectives of this DOE-sponsored project was to reduce customer outage time. Fault location, prediction, and protection are the most important aspects of fault management for the reduction of outage time. In the past most of the research and development on power system faults in these areas has focused on transmission systems, and it is not until recently with deregulation and competition that research on power system faults has begun to focus on the unique aspects of distribution systems. This project was planned with three Phases, approximately one year per phase. The first phase of the project involved an assessment of the state-of-the-art in fault location, prediction, and detection as well as the design, lab testing, and field installation of the advanced protection system on the SCE Circuit of the Future located north of San Bernardino, CA. The new feeder automation scheme, with vacuum fault interrupters, will limit the number of customers affected by the fault. Depending on the fault location, the substation breaker might not even trip. Through the use of fast communications (fiber) the fault locations can be determined and the proper fault interrupting switches opened automatically. With knowledge of circuit loadings at the time of the fault, ties to other circuits can be closed automatically to restore all customers except the faulted section. This new automation scheme limits outage time and increases reliability for customers. The second phase of the project involved the selection, modeling, testing and installation of a fault current limiter on the Circuit of the Future. While this project did not pay for the installation and testing of the fault current limiter, it did perform the evaluation of the fault current limiter and its impacts on the protection system of the Circuit of the Future. After investigation of several fault current limiters, the Zenergy superconducting, saturable core fault current limiter was selected for installation. Because of some testing problems with the Zenergy fault current limiter, installation was delayed until early 2009 with it being put into operation on March 6, 2009. A malfunction of the FCL controller caused the DC power supply to the superconducting magnet to be turned off. This inserted the FCL impedance into the circuit while it was in normal operation causing a voltage resonance condition. While these voltages never reached a point where damage would occur on customer equipment, steps were taken to insure this would not happen again. The FCL was reenergized with load on December 18, 2009. A fault was experienced on the circuit with the FCL in operation on January 14, 2010. The FCL operated properly and reduced the fault current by about 8%, what was expected from tests and modeling. As of the end of the project, the FCL was still in operation on the circuit. The third phase of the project involved the exploration of several advanced protection ideas that might be at a state where they could be applied to the Circuit of the Future and elsewhere in the SCE electrical system. Based on the work done as part of the literature review and survey, as well as a number of internal meetings with engineering staff at SCE, a number of ideas were compiled. These ideas were then evaluated for applicability and ability to be applied on the Circuit of the Future in the time remaining for the project. Some of these basic ideas were implemented on the circuit including measurement of power quality before and after the FCL. It was also decided that we would take what was learned as part of the Circuit of the Future work and extend it to the next generation circuit protection for SCE. Also at this time, SCE put in a proposal to the DOE for the Irvine Smart Grid Demonstration using ARRA funding. SCE was successful in obtaining funding for this proposal, so it was felt that exploration of new protection schemes for this Irvine Smart Grid Demonstration would be a good use of the project resources. With this in mind, a protection system that uses fault interrupting switches, hi

  9. Row fault detection system

    DOE Patents [OSTI]

    Archer, Charles Jens (Rochester, MN); Pinnow, Kurt Walter (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian Edward (Rochester, MN)

    2012-02-07T23:59:59.000Z

    An apparatus, program product and method check for nodal faults in a row of nodes by causing each node in the row to concurrently communicate with its adjacent neighbor nodes in the row. The communications are analyzed to determine a presence of a faulty node or connection.

  10. An algorithm for faulted phase and feeder selection under high impedance fault conditions

    E-Print Network [OSTI]

    Benner, Carl Lee

    1988-01-01T23:59:59.000Z

    . Summary SUMMARY AND CONCLUSIONS REFERENCES . SUPPLEMENTAL SOURCES CONSULTED APPENDIX A VITA 57 58 59 59 60 62 68 70 vn LIST OF TABLES Table II. Ihh Comparison of fault-generated phases during arcing fault test Comparison of fault...-generated phases during arcing fault test Comparison of fault-generated phases during arcing fault test activity on activity on activity on faulted and unfaulted Page 45 faulted and unfaulted 46 faulted and unfaulted 47 vu1 LIST OF FIGURES Figure l...

  11. Geologic Map and GIS Data for the Patua Geothermal Area

    SciTech Connect (OSTI)

    Faulds, James E.

    2011-10-31T23:59:59.000Z

    PatuaESRI Geodatabase (ArcGeology v1.3): - Contains all the geologic map data, including faults, contacts, folds, veins, dikes, unit polygons, and attitudes of strata and faults. - List of stratigraphic units. - Locations of geothermal wells. - Locations of 40Ar/39Ar and tephra samples.

  12. Development of Characterization Technology for Fault Zone Hydrology

    SciTech Connect (OSTI)

    Karasaki, Kenzi; Onishi, Tiemi; Gasperikova, Erika; Goto, Junichi; Tsuchi, Hiroyuki; Miwa, Tadashi; Ueta, Keiichi; Kiho, Kenzo; MIyakawa, Kimio

    2010-08-06T23:59:59.000Z

    Several deep trenches were cut, and a number of geophysical surveys were conducted across the Wildcat Fault in the hills east of Berkeley, California. The Wildcat Fault is believed to be a strike-slip fault and a member of the Hayward Fault System, with over 10 km of displacement. So far, three boreholes of ~;; 150m deep have been core-drilled and borehole geophysical logs were conducted. The rocks are extensively sheared and fractured; gouges were observed at several depths and a thick cataclasitic zone was also observed. While confirming some earlier, published conclusions from shallow observations about Wildcat, some unexpected findings were encountered. Preliminary analysis indicates that Wildcat near the field site consists of multiple faults. The hydraulic test data suggest the dual properties of the hydrologic structure of the fault zone. A fourth borehole is planned to penetrate the main fault believed to lie in-between the holes. The main philosophy behind our approach for the hydrologic characterization of such a complex fractured system is to let the system take its own average and monitor a long term behavior instead of collecting a multitude of data at small length and time scales, or at a discrete fracture scale and to ?up-scale,? which is extremely tenuous.

  13. Deformation of Compliant Fault Zones Induced by Nearby Earthquakes: Theoretical Investigations in Three Dimensions and Applications to The East California Shear Zone

    E-Print Network [OSTI]

    Kang, Jingqian

    2014-02-21T23:59:59.000Z

    primarily examine the plastic strain distribution within the fault zone and the displacement field that characterizes the effects of the presence of the fault zone. I find that when the fault zone rocks are close to failure in the prestress field, plastic...

  14. Geologic Map and GIS Data for the Tuscarora Geothermal Area

    SciTech Connect (OSTI)

    Faulds, James E.

    2013-12-31T23:59:59.000Z

    TuscaroraESRI Geodatabase (ArcGeology v1.3): - Contains all the geologic map data, including faults, contacts, folds, unit polygons, and attitudes of strata and faults. - List of stratigraphic units and stratigraphic correlation diagram. - Detailed unit descriptions of stratigraphic units. - Five cross?sections. - Locations of production, injection, and monitor wells. - 3D model constructed with EarthVision using geologic map data, cross?sections, drill?hole data, and geophysics (model not in the ESRI geodatabase).

  15. Evaluation of the location and recency of faulting near prospective surface facilities in Midway Valley, Nye County, Nevada

    SciTech Connect (OSTI)

    Swan, F.H.; Wesling, J.R.; Angell, M.M.; Thomas, A.P.; Whitney, J.W.; Gibson, J.D.

    2002-01-17T23:59:59.000Z

    Evaluation of surface faulting that may pose a hazard to prospective surface facilities is an important element of the tectonic studies for the potential Yucca Mountain high-level radioactive waste repository in southwestern Nevada. For this purpose, a program of detailed geologic mapping and trenching was done to obtain surface and near-surface geologic data that are essential for determining the location and recency of faults at a prospective surface-facilities site located east of Exile Hill in Midway Valley, near the eastern base of Yucca Mountain. The dominant tectonic features in the Midway Valley area are the north- to northeast-trending, west-dipping normal faults that bound the Midway Valley structural block-the Bow Ridge fault on the west side of Exile Hill and the Paint-brush Canyon fault on the east side of the valley. Trenching of Quaternary sediments has exposed evidence of displacements, which demonstrate that these block-bounding faults repeatedly ruptured the surface during the middle to late Quaternary. Geologic mapping, subsurface borehole and geophysical data, and the results of trenching activities indicate the presence of north- to northeast-trending faults and northwest-trending faults in Tertiary volcanic rocks beneath alluvial and colluvial sediments near the prospective surface-facilities site. North to northeast-trending faults include the Exile Hill fault along the eastern base of Exile Hill and faults to the east beneath the surficial deposits of Midway Valley. These faults have no geomorphic expression, but two north- to northeast-trending zones of fractures exposed in excavated profiles of middle to late Pleistocene deposits at the prospective surface-facilities site appear to be associated with these faults. Northwest-trending faults include the West Portal and East Portal faults, but no disruption of Quaternary deposits by these faults is evident. The western zone of fractures is associated with the Exile Hill fault. The eastern zone of fractures is within Quaternary alluvial sediments, but no bedrock was encountered in trenches and soil pits in this part of the prospective surface facilities site; thus, the direct association of this zone with one or more bedrock faults is uncertain. No displacement of lithologic contacts and soil horizons could be detected in the fractured Quaternary deposits. The results of these investigations imply the absence of any appreciable late Quaternary faulting activity at the prospective surface-facilities site.

  16. Colorado Regional Faults

    SciTech Connect (OSTI)

    Hussein, Khalid

    2012-02-01T23:59:59.000Z

    Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Originator: Colorado Geological Survey (CGS) Publication Date: 2012 Title: Regional Faults Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains the regional faults of Colorado Spatial Domain: Extent: Top: 4543192.100000 m Left: 144385.020000 m Right: 754585.020000 m Bottom: 4094592.100000 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System 1984 (WGS 984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

  17. Extension maps

    E-Print Network [OSTI]

    Aik-meng Kuah; E. C. G. Sudarshan

    2005-03-12T23:59:59.000Z

    We define extension maps as maps that extend a system (through adding ancillary systems) without changing the state in the original system. We show, using extension maps, why a completely positive operation on an initially entangled system results in a non positive mapping of a subsystem. We also show that any trace preserving map, either positive or negative, can be decomposed in terms of an extension map and a completely positive map.

  18. The holographic mapping of the Standard Model onto the black hole horizon, Part I: Abelian vector field, scalar field and BEH Mechanism

    E-Print Network [OSTI]

    G. 't Hooft

    2005-04-25T23:59:59.000Z

    Interactions between outgoing Hawking particles and ingoing matter are determined by gravitational forces and Standard Model interactions. In particular the gravitational interactions are responsible for the unitarity of the scattering against the horizon, as dictated by the holographic principle, but the Standard Model interactions also contribute, and understanding their effects is an important first step towards a complete understanding of the horizon's dynamics. The relation between in- and outgoing states is described in terms of an operator algebra. In this paper, the first of a series, we describe the algebra induced on the horizon by U(1) vector fields and scalar fields, including the case of an Englert-Brout-Higgs mechanism, and a more careful consideration of the transverse vector field components.

  19. Observer-based fault detection for nuclear reactors

    E-Print Network [OSTI]

    Li, Qing, 1972-

    2001-01-01T23:59:59.000Z

    This is a study of fault detection for nuclear reactor systems. Basic concepts are derived from fundamental theories on system observers. Different types of fault- actuator fault, sensor fault, and system dynamics fault ...

  20. Synchronized sampling improves fault location

    SciTech Connect (OSTI)

    Kezunovic, M. [Texas A and M Univ., College Station, TX (United States)] [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)] [Lamar Univ., Beaumont, TX (United States)

    1995-04-01T23:59:59.000Z

    Transmission line faults must be located accurately to allow maintenance crews to arrive at the scene and repair the faulted section as soon as possible. Rugged terrain and geographical layout cause some sections of power transmission lines to be difficult to reach. In the past, a variety of fault location algorithms were introduced as either an add-on feature in protective relays or stand-alone implementation in fault locators. In both cases, the measurements of current and voltages were taken at one terminal of a transmission line only. Under such conditions, it may become difficult to determine the fault location accurately, since data from other transmission line ends are required for more precise computations. In the absence of data from the other end, existing algorithms have accuracy problems under several circumstances, such as varying switching and loading conditions, fault infeed from the other end, and random value of fault resistance. Most of the one-end algorithms were based on estimation of voltage and current phasors. The need to estimate phasors introduces additional difficulty in high-speed tripping situations where the algorithms may not be fast enough in determining fault location accurately before the current signals disappear due to the relay operation and breaker opening. This article introduces a unique concept of high-speed fault location that can be implemented either as a simple add-on to the digital fault recorders (DFRs) or as a stand-alone new relaying function. This advanced concept is based on the use of voltage and current samples that are synchronously taken at both ends of a transmission line. This sampling technique can be made readily available in some new DFR designs incorporating receivers for accurate sampling clock synchronization using the satellite Global Positioning System (GPS).

  1. A Fully Automated Fault-tolerant System for Distributed Video Processing and Off-site Replication

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    A Fully Automated Fault-tolerant System for Distributed Video Processing and Off-site Replication been a failure-prone tedious operation with an operator needed to babysit the processing and off-site, off-site replication, fault-tolerance, grid, educational research. 1. INTRODUCTION In different fields

  2. Hot Pot Field Observations

    SciTech Connect (OSTI)

    Lane, Michael

    2013-06-28T23:59:59.000Z

    Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

  3. Hot Pot Field Observations

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

    Lane, Michael

    Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

  4. Dynamic Reservoir Characterization for High Resolution Connectivity Mapping and Conformance Control, Morrow Sandstone Reservoir, Postle Field, Oklahoma

    E-Print Network [OSTI]

    . The purpose is to conduct dynamic reservoir characterization of the Postle Field, Morrow Reservoir, under CO2 depletion, followed by water flooding in 1965, and later onset of CO2-enhanced oil recovery in 1995 within valley fill complexes (Fig. 3). Whiting Petroleum Company, the operator, is preparing to initiate a CO2

  5. Arc fault detection system

    DOE Patents [OSTI]

    Jha, Kamal N. (Bethel Park, PA)

    1999-01-01T23:59:59.000Z

    An arc fault detection system for use on ungrounded or high-resistance-grounded power distribution systems is provided which can be retrofitted outside electrical switchboard circuits having limited space constraints. The system includes a differential current relay that senses a current differential between current flowing from secondary windings located in a current transformer coupled to a power supply side of a switchboard, and a total current induced in secondary windings coupled to a load side of the switchboard. When such a current differential is experienced, a current travels through a operating coil of the differential current relay, which in turn opens an upstream circuit breaker located between the switchboard and a power supply to remove the supply of power to the switchboard.

  6. Arc fault detection system

    DOE Patents [OSTI]

    Jha, K.N.

    1999-05-18T23:59:59.000Z

    An arc fault detection system for use on ungrounded or high-resistance-grounded power distribution systems is provided which can be retrofitted outside electrical switchboard circuits having limited space constraints. The system includes a differential current relay that senses a current differential between current flowing from secondary windings located in a current transformer coupled to a power supply side of a switchboard, and a total current induced in secondary windings coupled to a load side of the switchboard. When such a current differential is experienced, a current travels through a operating coil of the differential current relay, which in turn opens an upstream circuit breaker located between the switchboard and a power supply to remove the supply of power to the switchboard. 1 fig.

  7. Development and Clinical Evaluation of a Three-Dimensional Cone-Beam Computed Tomography Estimation Method Using a Deformation Field Map

    SciTech Connect (OSTI)

    Ren, Lei, E-mail: lren1@hfhs.org [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Chetty, Indrin J. [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Zhang Junan [Department of Radiation Oncology, Oregon Health and Science University, Portland, OR (United States); Jin Jianyue [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Wu, Q. Jackie; Yan Hui; Brizel, David M.; Lee, W. Robert [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Movsas, Benjamin [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Yin Fangfang [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States)

    2012-04-01T23:59:59.000Z

    Purpose: To develop a three-dimensional (3D) cone-beam computed tomography (CBCT) estimation method using a deformation field map, and to evaluate and optimize the efficiency and accuracy of the method for use in the clinical setting. Methods and Materials: We propose a method to estimate patient CBCT images using prior information and a deformation model. Patients' previous CBCT data are used as the prior information, and the new CBCT volume to be estimated is considered as a deformation of the prior image volume. The deformation field map is solved by minimizing deformation energy and maintaining new projection data fidelity using a nonlinear conjugate gradient method. This method was implemented in 3D form using hardware acceleration and multi-resolution scheme, and it was evaluated for different scan angles, projection numbers, and scan directions using liver, lung, and prostate cancer patient data. The accuracy of the estimation was evaluated by comparing the organ volume difference and the similarity between estimated CBCT and the CBCT reconstructed from fully sampled projections. Results: Results showed that scan direction and number of projections do not have significant effects on the CBCT estimation accuracy. The total scan angle is the dominant factor affecting the accuracy of the CBCT estimation algorithm. Larger scan angles yield better estimation accuracy than smaller scan angles. Lung cancer patient data showed that the estimation error of the 3D lung tumor volume was reduced from 13.3% to 4.3% when the scan angle was increased from 60 Degree-Sign to 360 Degree-Sign using 57 projections. Conclusions: The proposed estimation method is applicable for 3D DTS, 3D CBCT, four-dimensional CBCT, and four-dimensional DTS image estimation. This method has the potential for significantly reducing the imaging dose and improving the image quality by removing the organ distortion artifacts and streak artifacts shown in images reconstructed by the conventional Feldkamp-Davis-Kress (FDK) algorithm.

  8. Location Map

    SciTech Connect (OSTI)

    Lane, Michael

    2013-06-27T23:59:59.000Z

    Map file package containing shaded relief base with Hot Pot project area, major roads, railroads, and rivers. The inset map shows regional Paleozoic structural elements.

  9. Location Map

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

    Lane, Michael

    Map file package containing shaded relief base with Hot Pot project area, major roads, railroads, and rivers. The inset map shows regional Paleozoic structural elements.

  10. Fault-tolerant rotary actuator

    DOE Patents [OSTI]

    Tesar, Delbert

    2006-10-17T23:59:59.000Z

    A fault-tolerant actuator module, in a single containment shell, containing two actuator subsystems that are either asymmetrically or symmetrically laid out is provided. Fault tolerance in the actuators of the present invention is achieved by the employment of dual sets of equal resources. Dual resources are integrated into single modules, with each having the external appearance and functionality of a single set of resources.

  11. This document contains 3087 words. FAULT-TOLERANT COMPUTING

    E-Print Network [OSTI]

    Rennels, David A.

    or physical damage. An extensive methodology has been developed in this field over the past thirty years the annual IEEE International Symposium on Fault-Tolerant Computing (FTCS) and the papers in its Digests with protective redundancy so that, if the module fails, others can assume its function. Special mechanisms

  12. Passive fault current limiting device

    DOE Patents [OSTI]

    Evans, D.J.; Cha, Y.S.

    1999-04-06T23:59:59.000Z

    A passive current limiting device and isolator is particularly adapted for use at high power levels for limiting excessive currents in a circuit in a fault condition such as an electrical short. The current limiting device comprises a magnetic core wound with two magnetically opposed, parallel connected coils of copper, a high temperature superconductor or other electrically conducting material, and a fault element connected in series with one of the coils. Under normal operating conditions, the magnetic flux density produced by the two coils cancel each other. Under a fault condition, the fault element is triggered to cause an imbalance in the magnetic flux density between the two coils which results in an increase in the impedance in the coils. While the fault element may be a separate current limiter, switch, fuse, bimetal strip or the like, it preferably is a superconductor current limiter conducting one-half of the current load compared to the same limiter wired to carry the total current of the circuit. The major voltage during a fault condition is in the coils wound on the common core in a preferred embodiment. 6 figs.

  13. Internal structure of the Kern Canyon Fault, California: a deeply exhumed strike-slip fault

    E-Print Network [OSTI]

    Neal, Leslie Ann

    2002-01-01T23:59:59.000Z

    Deformation and mineral alteration adjacent to a 2 km long segment of the Kern Canyon fault near Lake Isabella, California are studied to characterize the internal structure of the fault zone and to understand the development of fault structure...

  14. Development of secondary faults between en echelon, oblique-slip faults: examples from basement controlled, small-fault systems in the Llano Uplift of central Texas

    E-Print Network [OSTI]

    Hedgcoxe, Howard Reiffert

    2012-06-07T23:59:59.000Z

    between and oriented oblique to the bounding faults. With increasing displacement on the bounding faults, the system of secondary faults evolves from an Elementary to a Compound, to an Advanced geometry, which includes the formation of secondary... to the primary faults. Synthetic faults form interior to and ahead of the bounding faults, increasing the effective overlap. Displacements on antithetic faults are directly related to changes in displacement on associated bounding faults. Additionally...

  15. Fault-Tolerant Quantum Computation via Exchange interactions

    E-Print Network [OSTI]

    M. Mohseni; D. A. Lidar

    2004-06-25T23:59:59.000Z

    Quantum computation can be performed by encoding logical qubits into the states of two or more physical qubits, and controlling a single effective exchange interaction and possibly a global magnetic field. This "encoded universality" paradigm offers potential simplifications in quantum computer design since it does away with the need to perform single-qubit rotations. Here we show that encoded universality schemes can be combined with quantum error correction. In particular, we show explicitly how to perform fault-tolerant leakage correction, thus overcoming the main obstacle to fault-tolerant encoded universality.

  16. Modeling fault-zone guided waves of microearthquakes in a geothermal...

    Open Energy Info (EERE)

    the identification and modeling of such guided waves is an effective tool to locate fracture-induced, low-velocity fault-zone structures in geothermal fields. Authors Lou, M.;...

  17. Development of Characterization Technology for Fault Zone Hydrology

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2010-01-01T23:59:59.000Z

    TECHNOLOGY FOR FAULT ZONE HYDROLOGY Kenzi Karasaki Lawrencefor characterizing the hydrology of fault zones, recognizingstructure of faults to hydrology, that it still may be

  18. The nature of the Heart Mountain fault in the vicinity of Dead Indian Hill, Park County, Wyoming

    E-Print Network [OSTI]

    Sungy, Eugene Donald

    1977-01-01T23:59:59.000Z

    Mountain thrust blocks consti- tuted a very limited strat1graphic interval, consisting of Ordovician B1ghorn Dolomite, undifferentiated dolomi tes, 1 1mestones and shales of Devonian age (Jefferson-Three Forks Formations) and the Mississippian Madison... of the thrust the transgress1ve fault zone and reports the slope of the transgressive fault to be approximately 10 degrees. A field study was conducted in the area of the transgressive fault in an attempt to better understand the mechanics of how...

  19. Fault Mapping At Coso Geothermal Area (1980) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan Leandro,LawFEMAProject JumpTechnologies FST JumpAt

  20. Fault Mapping At Raft River Geothermal Area (1993) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan Leandro,LawFEMAProject JumpTechnologies FST

  1. Geologic Map and GID Data for the Salt Wells Geothermal Area

    SciTech Connect (OSTI)

    Hinz, Nick

    2011-10-31T23:59:59.000Z

    Salt WellsESRI Geodatabase (ArcGeology v1.3): - Contains all the geologic map data, including faults, contacts, folds, dikes, unit polygons, and attitudes of strata and faults. - List of stratigraphic units and stratigraphic correlation diagram. - Locations of 40Ar/39Ar samples.

  2. Automated Fault Location In Smart Distribution Systems

    E-Print Network [OSTI]

    Lotfifard, Saeed

    2012-10-19T23:59:59.000Z

    of utilizing a suitable fault location method. As distribution systems are gradually evolving into smart distribution systems, application of more accurate fault location methods based on gathered data from various Intelligent Electronic Devices (IEDs...

  3. A Rectilinear-Monotone Polygonal Fault Block Model for Fault-Tolerant Minimal Routing

    E-Print Network [OSTI]

    Wang, Dajin

    ]. In rectangular model, all faulty nodes are grouped in dis- jointed, rectangular areas, called fault blocksA Rectilinear-Monotone Polygonal Fault Block Model for Fault-Tolerant Minimal Routing in Mesh Dajin Wang, Member, IEEE Abstract--We propose a new fault block model, Minimal-Connected-Component (MCC

  4. High temperature superconducting fault current limiter

    DOE Patents [OSTI]

    Hull, J.R.

    1997-02-04T23:59:59.000Z

    A fault current limiter for an electrical circuit is disclosed. The fault current limiter includes a high temperature superconductor in the electrical circuit. The high temperature superconductor is cooled below its critical temperature to maintain the superconducting electrical properties during operation as the fault current limiter. 15 figs.

  5. Coordinated Fault-Tolerance for High-Performance Computing Final Project Report

    SciTech Connect (OSTI)

    Panda, Dhabaleswar Kumar [The Ohio State University; Beckman, Pete

    2011-07-01T23:59:59.000Z

    With the Coordinated Infrastructure for Fault Tolerance Systems (CIFTS, as the original project came to be called) project, our aim has been to understand and tackle the following broad research questions, the answers to which will help the HEC community analyze and shape the direction of research in the field of fault tolerance and resiliency on future high-end leadership systems. #15; Will availability of global fault information, obtained by fault information exchange between the different HEC software on a system, allow individual system software to better detect, diagnose, and adaptively respond to faults? If fault-awareness is raised throughout the system through fault information exchange, is it possible to get all system software working together to provide a more comprehensive end-to-end fault management on the system? #15; What are the missing fault-tolerance features that widely used HEC system software lacks today that would inhibit such software from taking advantage of systemwide global fault information? #15; What are the practical limitations of a systemwide approach for end-to-end fault management based on fault awareness and coordination? #15; What mechanisms, tools, and technologies are needed to bring about fault awareness and coordination of responses on a leadership-class system? #15; What standards, outreach, and community interaction are needed for adoption of the concept of fault awareness and coordination for fault management on future systems? Keeping our overall objectives in mind, the CIFTS team has taken a parallel fourfold approach. #15; Our central goal was to design and implement a light-weight, scalable infrastructure with a simple, standardized interface to allow communication of fault-related information through the system and facilitate coordinated responses. This work led to the development of the Fault Tolerance Backplane (FTB) publish-subscribe API specification, together with a reference implementation and several experimental implementations on top of existing publish-subscribe tools. #15; We enhanced the intrinsic fault tolerance capabilities representative implementations of a variety of key HPC software subsystems and integrated them with the FTB. Targeting software subsystems included: MPI communication libraries, checkpoint/restart libraries, resource managers and job schedulers, and system monitoring tools. #15; Leveraging the aforementioned infrastructure, as well as developing and utilizing additional tools, we have examined issues associated with expanded, end-to-end fault response from both system and application viewpoints. From the standpoint of system operations, we have investigated log and root cause analysis, anomaly detection and fault prediction, and generalized notification mechanisms. Our applications work has included libraries for fault-tolerance linear algebra, application frameworks for coupled multiphysics applications, and external frameworks to support the monitoring and response for general applications. #15; Our final goal was to engage the high-end computing community to increase awareness of tools and issues around coordinated end-to-end fault management.

  6. Field Mapping | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg| Open Energy InformationThe2011) |Al.,|

  7. Software Fault Diagnosis Peter Zoeteweij

    E-Print Network [OSTI]

    Zoeteweij, Peter

    Lab, Faculty of Electrical Engineering, Mathematics, and Computer Science, Delft University-to-day basis is constantly growing. Combined with a practically constant rate of faults per line of code in the software development cycle, which aim at exposing such discrepancies. In this context, automated diagnosis

  8. Fault-tolerant quantum computing with color codes

    E-Print Network [OSTI]

    Andrew J. Landahl; Jonas T. Anderson; Patrick R. Rice

    2011-08-29T23:59:59.000Z

    We present and analyze protocols for fault-tolerant quantum computing using color codes. We present circuit-level schemes for extracting the error syndrome of these codes fault-tolerantly. We further present an integer-program-based decoding algorithm for identifying the most likely error given the syndrome. We simulated our syndrome extraction and decoding algorithms against three physically-motivated noise models using Monte Carlo methods, and used the simulations to estimate the corresponding accuracy thresholds for fault-tolerant quantum error correction. We also used a self-avoiding walk analysis to lower-bound the accuracy threshold for two of these noise models. We present and analyze two architectures for fault-tolerantly computing with these codes: one with 2D arrays of qubits are stacked atop each other and one in a single 2D substrate. Our analysis demonstrates that color codes perform slightly better than Kitaev's surface codes when circuit details are ignored. When these details are considered, we estimate that color codes achieve a threshold of 0.082(3)%, which is higher than the threshold of $1.3 \\times 10^{-5}$ achieved by concatenated coding schemes restricted to nearest-neighbor gates in two dimensions but lower than the threshold of 0.75% to 1.1% reported for the Kitaev codes subject to the same restrictions. Finally, because the behavior of our decoder's performance for two of the noise models we consider maps onto an order-disorder phase transition in the three-body random-bond Ising model in 2D and the corresponding random-plaquette gauge model in 3D, our results also answer the Nishimori conjecture for these models in the negative: the statistical-mechanical classical spin systems associated to the 4.8.8 color codes are counterintuitively more ordered at positive temperature than at zero temperature.

  9. Thrust faulting in Temblor Range, Kern County, California

    SciTech Connect (OSTI)

    Simonson, R.R.

    1991-02-01T23:59:59.000Z

    Surface and subsurface studies confirm the presence of overthrusting in the Temblor Range between Gonyer Canyon and Recruit Pass. In the subsurface, three wells have penetrated the Cree fault, the Hudbay Cree' No. 1 (7,300 ft), the Frantzen Oil Company Cree' No. 1 (5,865 ft) and the Arco Cree Fee' 1A well (5,915 ft). Below the fault, 25 to 35{degree} of westerly dips on the west flank of the sub-thrust Phelps anticline are encountered. The McDonald section below the fault is comprised of siliceous fractured shale which contains live oil and gas showings. A drill-stem test of the interval from 8,247 to 8,510 ft in the Frantzen well resulted in a recovery of 1,200 ft clean 34{degree} oil and 40 MCF per day gas. The shut in pressure was 3,430 lb, which is a normal hydrostatic pressure common to the producing structures in the southern San Joaquin Valley. The equivalent of this interval has produced over 7,000 bbl of oil in the Arco Cree' 1A well. The Arco Cree Fee' No. 1A well crossed the axis of the Phelps Anticline as indicated by good dipmeter and bottomed in Lower Zemorrian at 14,512 ft total depth. This well was not drilled deep enough to reach the Point of Rocks Sand and did not test the gas showings in the lower Miocene section. In the Gonyer Canyon area, subsurface evidence indicated conditions are similar to those in the Cree area because a large structure is present below a thrust fault. It is believed that significant accumulations will be found beneath thrust faults in the eastern part of the Temblor Range where conditions are similar to those that were instrumental in forming fields such as the Elk Hills, B. V. Hills, Belgian Anticline and others.

  10. The effects of lithology and initial fault angle in physical models of fault-propagation folds

    E-Print Network [OSTI]

    McLain, Christopher Thomas

    2001-01-01T23:59:59.000Z

    Experimentally deformed physical rock models are used to examine the effects of changing mechanical stratigraphy and initial fault angle on the development of fault-propagation folds over a flat-ramp-flat thrust geometry. This study also...

  11. A fault location approach for fuzzy fault section estimation on radial distribution feeders

    E-Print Network [OSTI]

    Andoh, Kwame Sarpong

    2000-01-01T23:59:59.000Z

    measured at feeder substations and the fault distance algorithm was tested using data obtained by staging faults on a model of an overhead feeder using EMTP/ATP simulation. The results obtained from the tests were promising. A simple illustration...

  12. Collateral damage: Evolution with displacement of fracture distribution and secondary fault strands in fault damage zones

    E-Print Network [OSTI]

    Savage, Heather M.; Brodsky, Emily E.

    2011-01-01T23:59:59.000Z

    8 m fault 14 m fault Lonewolf Wadi Araba Carboneras Caletasiltstone, conglomerate Wadi As Sir Limestone gneiss schistFaulkner et al. , 2003], and Wadi Araba [Du Bernard et al. ,

  13. The detection of high impedance faults using random fault behavior

    E-Print Network [OSTI]

    Carswell, Patrick Wayne

    1988-01-01T23:59:59.000Z

    the energy 120 100 80 O& 60 C Lu 40 20 100 200 300 400 500 600 700 800 900 1000 1100 Cycle Number Figure 1. Typical lugh frequency energy per cycle for an arcing fault. 23 . 055 . 050 . 025 Ol . 020 . 01 5 . 010 . 005 25 50 75 100 125... 150 175 200 225 250 275 500 Cycle Number Figure 2. Typical high frequency energy per cycle for a normal system. 24 3 Vl c uj 2 100 200 300 400 500 600 700 800 900 '1000 1100 Cycle Number Figure 3. Typical high frequency energy per cycle for a...

  14. Low fault friction in Iran implies localized deformation for the ArabiaEurasia collision zone

    E-Print Network [OSTI]

    Vernant, Philippe

    Low fault friction in Iran implies localized deformation for the Arabia­Eurasia collision zone P velocity field of the present-day deformation in Iran is modeled using a 3-dimensional (3D) finite element of the kinematics in Iran, but the complex velocity field of the surrounding South Caspian basin cannot be fitted

  15. Detachment Faulting & Geothermal Resources - Pearl Hot Spring...

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

    Faulting & Geothermal Resources - Pearl Hot Spring, NV Conducting a 3D Converted Shear Wave Project to Reduce Exploration Risk at Wister, CA Crump Geyser: High Precision...

  16. Structural Analysis of the Desert Peak-Brady Geothermal Fields...

    Open Energy Info (EERE)

    northwestern Nevada. The fields lie within the Humboldt structural zone, a region of high heat flow characterized by east-northeast to north northeast- striking fault zones. The...

  17. Research on Fault Analysis and Fault-Tolerant Control of EV/HEV Powertrain

    E-Print Network [OSTI]

    Brest, Université de

    presents research works in the topics of fault analysis and fault tolerant control of an electric vehicle mechanism (transition strategy) at sensor fault occurrence. Index Terms--Electric vehicle, induction motor-tolerant AC motor drives in industrial applications [9-10- 41]. II. ELECTRIC VEHICLE POWERTRAIN COMPONENTS

  18. Towards Fault-Tolerant Digital Microfluidic Lab-on-Chip: Defects, Fault Modeling, Testing, and Reconfiguration

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    Towards Fault-Tolerant Digital Microfluidic Lab-on-Chip: Defects, Fault Modeling, Testing, NC 27708, USA Abstract Dependability is an important attribute for microfluidic lab-on-chip devices microfluidic lab-on-chip systems. Defects are related to logical fault models that can be viewed not only

  19. Contribution of Identified Active Faults to Near Fault Seismic Hazard in the Flinders Ranges

    E-Print Network [OSTI]

    Sandiford, Mike

    Somerville1 , Peggy Quijada1 , Hong Kie Thio1 , Mike Sandiford2 and Mark Quigley2 1. URS Corporation estimates of fault slip rate from Quigley et al. (2006) to quantify the seismic activity rate on the faults of these models was used in conjunction with the active fault model. Quigley et al. (2006) identified a system

  20. Three-dimensional numerical modeling of the influence of faults on groundwater flow at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    Cohen, Andrew J.B.

    1999-06-01T23:59:59.000Z

    Numerical simulations of groundwater flow at Yucca Mountain, Nevada are used to investigate how the faulted hydrogeologic structure influences groundwater flow from a proposed high-level nuclear waste repository. Simulations are performed using a 3-D model that has a unique grid block discretization to accurately represent the faulted geologic units, which have variable thicknesses and orientations. Irregular grid blocks enable explicit representation of these features. Each hydrogeologic layer is discretized into a single layer of irregular and dipping grid blocks, and faults are discretized such that they are laterally continuous and displacement varies along strike. In addition, the presence of altered fault zones is explicitly modeled, as appropriate. The model has 23 layers and 11 faults, and approximately 57,000 grid blocks and 200,000 grid block connections. In the past, field measurement of upward vertical head gradients and high water table temperatures near faults were interpreted as indicators of upwelling from a deep carbonate aquifer. Simulations show, however, that these features can be readily explained by the geometry of hydrogeologic layers, the variability of layer permeabilities and thermal conductivities, and by the presence of permeable fault zones or faults with displacement only. In addition, a moderate water table gradient can result from fault displacement or a laterally continuous low permeability fault zone, but not from a high permeability fault zone, as others postulated earlier. Large-scale macrodispersion results from the vertical and lateral diversion of flow near the contact of high and low permeability layers at faults, and from upward flow within high permeability fault zones. Conversely, large-scale channeling can occur due to groundwater flow into areas with minimal fault displacement. Contaminants originating at the water table can flow in a direction significantly different than that of the water table gradient, and isolated zones of contaminants will occur at the water table downgradient. This behavior is not predicted by traditional models of contaminant transport. In addition, the influence of a particular type of fault cannot be generalized; depending on the location where contaminants enter the saturated zone, faults may either enhance of inhibit vertical dispersion.

  1. Earthquake behavior and structure of oceanic transform faults

    E-Print Network [OSTI]

    Roland, Emily Carlson

    2012-01-01T23:59:59.000Z

    Oceanic transform faults that accommodate strain at mid-ocean ridge offsets represent a unique environment for studying fault mechanics. Here, I use seismic observations and models to explore how fault structure affects ...

  2. Low-cost motor drive embedded fault diagnosis systems

    E-Print Network [OSTI]

    Akin, Bilal

    2009-05-15T23:59:59.000Z

    Electric motors are used widely in industrial manufacturing plants. Bearing faults, insulation faults, and rotor faults are the major causes of electric motor failures. Based on the line current analysis, this dissertation mainly deals with the low...

  3. Area balance and strain in an extensional fault system: Strategies for improved oil recovery in fractured chalk, Gilbertown Field, southwestern Alabama -- Year 2. Annual report, March 1997--March 1998

    SciTech Connect (OSTI)

    Pashin, J.C.; Raymond, D.E.; Rindsberg, A.K.; Alabi, G.G.; Carroll, R.E.

    1998-09-01T23:59:59.000Z

    Gilbertown Field is the oldest oil field in Alabama and has produced oil from fractured chalk of the Cretaceous Selma Group and glauconitic sandstone of the Eutaw Formation. Nearly all of Gilbertown Field is still in primary recovery, although waterflooding has been attempted locally. The objective of this project is to analyze the geologic structure and burial history of Mesozoic and Tertiary strata in Gilbertown Field and adjacent areas in order to suggest ways in which oil recovery can be improved. Indeed, the decline of oil production to marginally economic levels in recent years has made this type of analysis timely and practical. Key technical advancements being sought include understanding the relationship of requisite strain to production in Gilbertown reservoirs, incorporation of synsedimentary growth factors into models of area balance, quantification of the relationship between requisite strain and bed curvature, determination of the timing of hydrocarbon generation, and identification of the avenues and mechanisms of fluid transport.

  4. Geologic Map and GIS Data for the Wabuska Geothermal Area

    SciTech Connect (OSTI)

    Hinz, Nick

    2013-09-30T23:59:59.000Z

    WabuskaESRI geodatabase (ArcGeology v1.3): - Contains all the geologic map data, including faults, contacts, folds, veins, dikes, unit polygons, and attitudes of strata. - List of stratigraphic units and stratigraphic correlation diagram. - One cross?section.

  5. Maps and Mapping Page 1 of 7

    E-Print Network [OSTI]

    Clarke, Keith

    Maps and Mapping Page 1 of 7 OBJECTIVES This exercise covers map projection, the systematic rendering of the earth's round, three-dimensional surface onto a flat map. Any map projection inherently, and orientation of the earth's surface features. You will use Flex Projector to evaluate various map projections

  6. Maps and Mapping Page 1 of 11

    E-Print Network [OSTI]

    Clarke, Keith

    Maps and Mapping Page 1 of 11 OBJECTIVES Online mapping is redefining the concept of maps in our culture. Cartographic mash-ups, mapping applications that combine content from multiple sources. The relative ease with which anyone can add location based information to a map has inspired a mash

  7. Surface Plasmon Resonance (SPR) Reflectance Imaging: A Label-Free/Real-Time Mapping of Microscale Mixture Concentration Fields (Water+Ethanol)

    E-Print Network [OSTI]

    Kihm, IconKenneth David

    Mixture Concentration Fields (Water+Ethanol) Iltai Kim and Kenneth D. Kihm Department of Mechanical (water+ethanol) concentration fields with surface plasmon resonance (SPR) reflectance technique based the refractive index and mixture concentration fields. The presented results show that ethanol penetrates

  8. Quaternary morphotectonic mapping of the Wadi Araba and implications for the tectonic activity of the southern

    E-Print Network [OSTI]

    Klinger, Yann

    Quaternary morphotectonic mapping of the Wadi Araba and implications for the tectonic activity, the Wadi Araba fault, runs along a valley blanketed in Quaternary sediments. We first focused. Finkel, O. Mayyas, and P. Tapponnier (2012), Quaternary morphotectonic mapping of the Wadi Araba

  9. active fault segments: Topics by E-print Network

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

    Fault activation Kuzmanov, Georgi 140 Early stage evolution of growth faults: 3D seismic insights from the Levant Basin, Eastern Mediterranean Materials Science Websites...

  10. Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems

    E-Print Network [OSTI]

    Najafi, Massieh

    2010-01-01T23:59:59.000Z

    in Fault Diagnostics for HVAC Systems Massieh Najafi 1 ,tools for determining HVAC diagnostics, methods todetect faults in HVAC systems are still generally

  11. Sensor Fault Diagnosis Using Principal Component Analysis

    E-Print Network [OSTI]

    Sharifi, Mahmoudreza

    2010-07-14T23:59:59.000Z

    The purpose of this research is to address the problem of fault diagnosis of sensors which measure a set of direct redundant variables. This study proposes: 1. A method for linear senor fault diagnosis 2. An analysis of isolability and detectability...

  12. Mesoscale fracture fabric and paleostress along the San Andreas fault at SAFOD

    E-Print Network [OSTI]

    Almeida, Rafael Vladimir

    2009-05-15T23:59:59.000Z

    Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Judith Chester Committee Members, Frederick Chester David Schechter Head of Department... of Advisory Committee: Dr. Judith Chester Spot cores from Phase 1 drilling of the main borehole at the San Andreas Fault Observatory at Depth (SAFOD) were mapped to characterize the mesoscale structure and infer paleostress at depth. Cores were oriented...

  13. Geology of the undeveloped oil and gas fields of Central Offshore Santa Maria Basin, California

    SciTech Connect (OSTI)

    Milton, J.D. [CalResources LLC, Bakersfield, CA (United States); Edwards, E.B. [ Ogle & Heck, Carpinteria, CA (United States); Heck, R.G. [Ogle & Heck, Santa Barbara, CA (United States)] [and others

    1996-12-31T23:59:59.000Z

    Two prominent subsurface structural features of the Central Offshore Santa Maria Basin are the Hosgri fault system and the associated anticlinal fold trend. Exploratory drilling and 3D seismic mapping have delineated a series of oil and gas fields along this trend which underlie four federal units and one non-unitized lease. The units are named after local geography and are called the Lion Rock, Point Sal, Purisima Point and Santa Maria Units. The individual lease, OCS P-0409, overlies the San Miguel field. The Hosgri fault system trends northwest-southeast and effectively forms the eastern boundary of the oil and gas province. Lying semi-parallel with the fault are several anticlinal culminations which have trapped large volumes of oil and gas in the fractured Montery Formation. The Monterey is both source and reservoir rock, averaging 300 meters n thickness throughout the Central Basin. Development of the Monterey Formation as a reservoir rock was through diagensis and tectonism with resulting porosities-from 15 to 20% and permeability up to one Darcy. These parameters coupled with a high geothermal gradient facilitate the inflow rates of the viscous Monterey oil. Some 24 exploration and delineation wells have been drilled in this area and tested at rates ranging from a few hundred to several thousand barrels per day. Estimated oil reserves in the Central Offshore Santa Maria Basin total approximately 1 billion barrels.

  14. Geology of the undeveloped oil and gas fields of Central Offshore Santa Maria Basin, California

    SciTech Connect (OSTI)

    Milton, J.D. (CalResources LLC, Bakersfield, CA (United States)); Edwards, E.B. ( Ogle Heck, Carpinteria, CA (United States)); Heck, R.G. (Ogle Heck, Santa Barbara, CA (United States)) (and others)

    1996-01-01T23:59:59.000Z

    Two prominent subsurface structural features of the Central Offshore Santa Maria Basin are the Hosgri fault system and the associated anticlinal fold trend. Exploratory drilling and 3D seismic mapping have delineated a series of oil and gas fields along this trend which underlie four federal units and one non-unitized lease. The units are named after local geography and are called the Lion Rock, Point Sal, Purisima Point and Santa Maria Units. The individual lease, OCS P-0409, overlies the San Miguel field. The Hosgri fault system trends northwest-southeast and effectively forms the eastern boundary of the oil and gas province. Lying semi-parallel with the fault are several anticlinal culminations which have trapped large volumes of oil and gas in the fractured Montery Formation. The Monterey is both source and reservoir rock, averaging 300 meters n thickness throughout the Central Basin. Development of the Monterey Formation as a reservoir rock was through diagensis and tectonism with resulting porosities-from 15 to 20% and permeability up to one Darcy. These parameters coupled with a high geothermal gradient facilitate the inflow rates of the viscous Monterey oil. Some 24 exploration and delineation wells have been drilled in this area and tested at rates ranging from a few hundred to several thousand barrels per day. Estimated oil reserves in the Central Offshore Santa Maria Basin total approximately 1 billion barrels.

  15. Recognition criteria for young multiple surface ruptures along the Meers fault in southwestern Oklahoma

    E-Print Network [OSTI]

    Westen, Diane Paula

    1985-01-01T23:59:59.000Z

    : I. Radar, I:300, 000 (Goodyear Aerospace) 2. MSS Band 2, I:425')00 (NCAA) 3. MSS Band dt I:425POO (NCAA) 4. MSS False Color Composite (NCAA) 5. MSS Band 4, Photo-Enhanced (NCAA) (Base Map) Figure 7. Linear feature composite of the Neers Fault... Interpreted: I. Radar, 1 300, 000 (Goodyear Aerospace) 2. MSS Band 2rl'425+00 (NCAA) 3. MSS Bond 4, I:425POO (NOAA) 4, MSS False Color Composite (NOAA) 5. MSS Band 4, Photo-Enhanced (NOAA) (Base Map) 10 12 13 Figure 8. Composite of tonal units...

  16. Mechanical Models of Fault-Related Folding

    SciTech Connect (OSTI)

    Johnson, A. M.

    2003-01-09T23:59:59.000Z

    The subject of the proposed research is fault-related folding and ground deformation. The results are relevant to oil-producing structures throughout the world, to understanding of damage that has been observed along and near earthquake ruptures, and to earthquake-producing structures in California and other tectonically-active areas. The objectives of the proposed research were to provide both a unified, mechanical infrastructure for studies of fault-related foldings and to present the results in computer programs that have graphical users interfaces (GUIs) so that structural geologists and geophysicists can model a wide variety of fault-related folds (FaRFs).

  17. Neural net application to transmission line fault detection and classification

    E-Print Network [OSTI]

    Rikalo, Igor

    1994-01-01T23:59:59.000Z

    , is to perform fault analysis by expert operators using their knowledge about the power systems and experience with past faults. Because of the time required to deal with complex fault situations, detailed fault analysis can not be performed by human operators...

  18. Development of Hydrologic Characterization Technology of Fault Zones

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2009-01-01T23:59:59.000Z

    rock interaction, fracture interconnectivity, fault-rockvalues, given the interconnectivity of fractures that are

  19. Fault Tolerant Control using Cartesian Genetic Programming

    E-Print Network [OSTI]

    Fernandez, Thomas

    Fault Tolerant Control using Cartesian Genetic Programming Yoshikazu Hirayama University of York]: Robotics-- Sensors; F.2.2 [Analysis of Algorithms and Problem Complexity]: Nonnumerical Algorithms and Problems General Terms Algorithms, Reliability Keywords cartesian genetic programming, evolutionary

  20. Microscopic feather fractures in the faulting process

    E-Print Network [OSTI]

    Conrad, Robert Eugene

    1974-01-01T23:59:59.000Z

    assumptions. Although the problem was not solved in this study, the expected ol trajectories for such a solution are shown in Figure 5 (page 20). Both of these concepts indicate a tendency for the local ol to make an angle with the fault greater than 6..., maximum compressive stress, trajectories to a two dimensional during sliding along (dashed lines) in a cylindrical specimen reduced elastic problem. (b) Expected ol trajectories a fault. crack by shear along the crack surfaces (Bieniawski, 1967...

  1. Fractional Zaslavsky and Henon Discrete Maps

    E-Print Network [OSTI]

    Vasily E. Tarasov

    2011-07-26T23:59:59.000Z

    This paper is devoted to the memory of Professor George M. Zaslavsky passed away on November 25, 2008. In the field of discrete maps, George M. Zaslavsky introduced a dissipative standard map which is called now the Zaslavsky map. G. Zaslavsky initialized many fundamental concepts and ideas in the fractional dynamics and kinetics. In this paper, starting from kicked damped equations with derivatives of non-integer orders we derive a fractional generalization of discrete maps. These fractional maps are generalizations of the Zaslavsky map and the Henon map. The main property of the fractional differential equations and the correspondent fractional maps is a long-term memory and dissipation. The memory is realized by the fact that their present state evolution depends on all past states with special forms of weights.

  2. Superconducting matrix fault current limiter with current-driven trigger mechanism

    DOE Patents [OSTI]

    Yuan, Xing (Albany, NY)

    2008-04-15T23:59:59.000Z

    A modular and scalable Matrix-type Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. An inductor is connected in series with the trigger superconductor in the trigger matrix and physically surrounds the superconductor. The current surge during a fault will generate a trigger magnetic field in the series inductor to cause fast and uniform quenching of the trigger superconductor to significantly reduce burnout risk due to superconductor material non-uniformity.

  3. Husimi Maps in Graphene

    E-Print Network [OSTI]

    Douglas J. Mason; Mario F. Borunda; Eric J. Heller

    2012-06-08T23:59:59.000Z

    We present a method for bridging the gap between the Dirac effective field theory and atomistic simulations in graphene based on the Husimi projection, allowing us to depict phenomena in graphene at arbitrary scales. This technique takes the atomistic wavefunction as an input, and produces semiclassical pictures of quasiparticles in the two Dirac valleys. We use the Husimi tech- nique to produce maps of the scattering behavior of boundaries, giving insight into the properties of wavefunctions at energies both close to and far from the Dirac point. Boundary conditions play a significant role to the rise of Fano resonances, which we examine using the Husimi map to deepen our understanding of bond currents near resonance.

  4. Quantitative strain mapping of InAs/InP quantum dots with 1 nm spatial resolution using dark field electron holography

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    by geometrical phase analysis of high angle annular dark field scanning transmission electron microscopy images resolution images have been used to obtain the strain in nano-structured materials.3 Although this approach in many different types of sam- ples, at this time the spatial resolution of between 3 and 6 nm

  5. Magnetic field mapping of the Belle solenoid N. Tan a M. Akatsu b A. Bozek c;2 K. Fujimoto b J. Haba c;1

    E-Print Network [OSTI]

    a novel moving mechanism for the field probes that uses an ultrasonic motor located in the strong magnetic at the solenoid center is 1.5 Tesla at 1 E­mail: junji.haba@kek.jp 2 Present address: Krakow Inst. of Nuclear

  6. E-Print Network 3.0 - andreas fault zone Sample Search Results

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

    Chester Summary: accommodated along large plate-boundary faults like the San Andreas transform fault in California. These faults... depend in part on the structure of the tabular...

  7. E-Print Network 3.0 - active fault zone Sample Search Results

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

    Earth Structure (2nd Edition), 2004 Summary: 292010 Oceanic Transform Faults and Fracture Zones Transform Fault: Active displacement. Fracture Zone: Fossil... fault, no active...

  8. Development of a Hydrologic Characterization Technology for Fault Zones Final Report

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2014-01-01T23:59:59.000Z

    Hydrologic Characterization Technology of Fault Zones, Phaseof Characterization Technology for Fault Zones, LBNL-1635E,Characterization on Technology of Fault Zones Phase II

  9. Site Map

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearchScheduled System Highlights Success Stories ContactSite Map

  10. Site Map

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted forHighlightsSeminarsSiliconSite Map TUNL pdf's | FAS pdf's | HTML |

  11. Measuring and Modeling Fault Density for Plume-Fault Encounter Probability Estimation

    SciTech Connect (OSTI)

    Jordan, P.D.; Oldenburg, C.M.; Nicot, J.-P.

    2011-05-15T23:59:59.000Z

    Emission of carbon dioxide from fossil-fueled power generation stations contributes to global climate change. Storage of this carbon dioxide within the pores of geologic strata (geologic carbon storage) is one approach to mitigating the climate change that would otherwise occur. The large storage volume needed for this mitigation requires injection into brine-filled pore space in reservoir strata overlain by cap rocks. One of the main concerns of storage in such rocks is leakage via faults. In the early stages of site selection, site-specific fault coverages are often not available. This necessitates a method for using available fault data to develop an estimate of the likelihood of injected carbon dioxide encountering and migrating up a fault, primarily due to buoyancy. Fault population statistics provide one of the main inputs to calculate the encounter probability. Previous fault population statistics work is shown to be applicable to areal fault density statistics. This result is applied to a case study in the southern portion of the San Joaquin Basin with the result that the probability of a carbon dioxide plume from a previously planned injection had a 3% chance of encountering a fully seal offsetting fault.

  12. Maps and Mapping Lab 6: Terrain Representation

    E-Print Network [OSTI]

    Clarke, Keith

    Maps and Mapping Lab 6: Terrain Representation OBJECTIVES Representing the earth's relief on a two. In this exercise, we will examine some ways that terrain can be represented on a map and in digital form. You exaggeration using Google Earth. MATERIALS USGS Quadrangle map, Ruler, Pencil, Calculator, Google Earth (4

  13. Chandra Survey in the AKARI North Ecliptic Pole Deep Field. I. X-ray Data, Point-like Source Catalog, Sensitivity Maps, and Number Counts

    E-Print Network [OSTI]

    Krumpe, M; Brunner, H; Hanami, H; Ishigaki, T; Takagi, T; Markowitz, A G; Goto, T; Malkan, M A; Matsuhara, H; Pearson, C; Ueda, Y; Wada, T

    2014-01-01T23:59:59.000Z

    We present data products from the 300 ks Chandra survey in the AKARI North Ecliptic Pole (NEP) deep field. This field has a unique set of 9-band infrared photometry covering 2-24 micron from the AKARI Infrared Camera, including mid-infrared (MIR) bands not covered by Spitzer. The survey is one of the deepest ever achieved at ~15 micron, and is by far the widest among those with similar depths in the MIR. This makes this field unique for the MIR-selection of AGN at z~1. We design a source detection procedure, which performs joint Maximum Likelihood PSF fits on all of our 15 mosaicked Chandra pointings covering an area of 0.34 square degree. The procedure has been highly optimized and tested by simulations. We provide a point source catalog with photometry and Bayesian-based 90 per cent confidence upper limits in the 0.5-7, 0.5-2, 2-7, 2-4, and 4-7 keV bands. The catalog contains 457 X-ray sources and the spurious fraction is estimated to be ~1.7 per cent. Sensitivity and 90 per cent confidence upper flux limit...

  14. Geologic Map of the Neal Hot Springs Geothermal Area - GIS Data

    SciTech Connect (OSTI)

    Faulds, James E.

    2013-03-31T23:59:59.000Z

    Neal Hot SpringsESRI Geodatabase (ArcGeology v1.3): - Contains all the geologic map data, including faults, contacts, folds, unit polygons, and attitudes of strata and faults. - List of stratigraphic units and stratigraphic correlation diagram. - Three cross?sections. - Locations of production, injection, and exploration wells. - Locations of 40Ar/39Ar samples. - Location of XRF geochemical samples. - 3D model constructed with EarthVision using geologic map data, cross?sections, drill?hole data, and geophysics (model not in the ESRI geodatabase).

  15. Geologic Map and Cross Sections of the McGinness Hills Geothermal Area - GIS Data

    SciTech Connect (OSTI)

    Faulds, James E.

    2013-12-31T23:59:59.000Z

    Geologic map data in shapefile format that includes faults, unit contacts, unit polygons, attitudes of strata and faults, and surficial geothermal features. 5 cross?sections in Adobe Illustrator format. Comprehensive catalogue of drill?hole data in spreadsheet, shapefile, and Geosoft database formats. Includes XYZ locations of well heads, year drilled, type of well, operator, total depths, well path data (deviations), lithology logs, and temperature data. 3D model constructed with EarthVision using geologic map data, cross?sections, drill?hole data, and geophysics.

  16. Geologic Map and Cross Sections of the McGinness Hills Geothermal Area - GIS Data

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

    Faulds, James E.

    Geologic map data in shapefile format that includes faults, unit contacts, unit polygons, attitudes of strata and faults, and surficial geothermal features. 5 cross?sections in Adobe Illustrator format. Comprehensive catalogue of drill?hole data in spreadsheet, shapefile, and Geosoft database formats. Includes XYZ locations of well heads, year drilled, type of well, operator, total depths, well path data (deviations), lithology logs, and temperature data. 3D model constructed with EarthVision using geologic map data, cross?sections, drill?hole data, and geophysics.

  17. Tips for Key Maps / Inset Maps How Do I Add a Key Maps or Inset Maps

    E-Print Network [OSTI]

    Brownstone, Rob

    Tips for Key Maps / Inset Maps How Do I Add a Key Maps or Inset Maps You need a new data frame o the properties/look of the extent rectangle Tips Index Map o Should be a simplified version of the map o Should cover at least 5X the area of the main map o Should have its own scale/coordinates/title o Main coverage

  18. VCSEL fault location apparatus and method

    DOE Patents [OSTI]

    Keeler, Gordon A. (Albuquerque, NM); Serkland, Darwin K. (Albuquerque, NM)

    2007-05-15T23:59:59.000Z

    An apparatus for locating a fault within an optical fiber is disclosed. The apparatus, which can be formed as a part of a fiber-optic transmitter or as a stand-alone instrument, utilizes a vertical-cavity surface-emitting laser (VCSEL) to generate a test pulse of light which is coupled into an optical fiber under test. The VCSEL is subsequently reconfigured by changing a bias voltage thereto and is used as a resonant-cavity photodetector (RCPD) to detect a portion of the test light pulse which is reflected or scattered from any fault within the optical fiber. A time interval .DELTA.t between an instant in time when the test light pulse is generated and the time the reflected or scattered portion is detected can then be used to determine the location of the fault within the optical fiber.

  19. Geologic Maps Geology 200

    E-Print Network [OSTI]

    Kammer, Thomas

    Geologic Maps Geology 200 Geology for Environmental Scientists #12;Geologic Map of the US #12;Symbols found on geologic maps #12;Horizontal Strata #12;Geologic map of part of the Grand Canyon. Each color represents a different formation. #12;Inclined Strata #12;Dome #12;Geologic map of the Black Hills

  20. Synthesis and evaluation of fault-tolerant quantum computer architectures

    E-Print Network [OSTI]

    Cross, Andrew W. (Andrew William), 1979-

    2005-01-01T23:59:59.000Z

    Fault-tolerance is the cornerstone of practical, large-scale quantum computing, pushed into its prominent position with heroic theoretical efforts. The fault-tolerance threshold, which is the component failure probability ...

  1. Observations on the capability of the Criner fault, southern Oklahoma

    E-Print Network [OSTI]

    Williamson, Shawn Collin

    2012-06-07T23:59:59.000Z

    Results of previous investigations have indicated the possibility that recent deformation has occurred on the Criner fault of southern Oklahoma. The Criner fault is located in Carter and Love Counties, Oklahoma, approximately 100 kilometers...

  2. Scalable, Fault-tolerant Management in a Service Oriented Architecture

    E-Print Network [OSTI]

    Scalable, Fault-tolerant Management in a Service Oriented Architecture Harshawardhan Gadgil: Scalable, Fault-tolerance, Service Oriented Management, Architecture 1. Introduction With the explosion. The service-oriented architecture provides a simple and flexible framework for building sophisticated

  3. FEATURE BASED HANDLING OF SURFACE FAULTS IN COMPACT DISC PLAYERS

    E-Print Network [OSTI]

    Wickerhauser, M. Victor

    two photo detectors. The distances are the distance from the actual position of the OPU such surface faults. The core idea is not to rely on sensor information during the fault. The sensor signals

  4. New approach to the fault location problem using synchronized sampling

    E-Print Network [OSTI]

    Mrkic, Jasna

    2012-06-07T23:59:59.000Z

    This thesis presents a new approach to solving the problem of fault location on a transmission line using synchronized data from both ends of the line. The synchronized phase voltage and current samples taken during the fault transient are used...

  5. Frictional properties of faults: from observation on the

    E-Print Network [OSTI]

    Winfree, Erik

    Frictional properties of faults: from observation on the Longitudinal Valley Fault, Taiwan myself lucky to do what I love and to wake up every day, happy and excited about the day to come

  6. Robust model-based fault diagnosis for chemical process systems

    E-Print Network [OSTI]

    Rajaraman, Srinivasan

    2006-08-16T23:59:59.000Z

    diagnosis systems, which use limited information about the process model to robustly detect, discriminate, and reconstruct instrumentation faults. Broadly, the proposed method consists of a novel nonlinear state and parameter estimator coupled with a fault...

  7. Collective Behavior of Coupled Chaotic Maps

    E-Print Network [OSTI]

    M. G. Cosenza

    1995-07-21T23:59:59.000Z

    The collective behavior of a coupled map lattice having {\\it unbounded} chaotic local dynamics is investigated through the properties of its mean field. The presence of unstable periodic orbits in the local maps determines the emergence of nontrivial collective behavior. Windows of collective period-two states are found in parameter space.

  8. Development of a bridge fault extractor tool

    E-Print Network [OSTI]

    Bhat, Nandan D.

    2005-02-17T23:59:59.000Z

    are tools that analyze chip layouts and produce a realistic list of bridging faults within that chip. FedEx, previously developed at Texas A&M University, extracts all two-node intralayer bridges of any given chip layout and optionally extracts all two...) for this tool which aids in more effectively visualizing the bridge faults across the chip. The final aim of this thesis was to perform FedEx output analysis to understand the nature of the defects, such as variation of critical area (the area where...

  9. Active Faulting in the Coso Geothermal Field, Eastern California | Open

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara JumpLogs

  10. Active Faulting in the Coso Geothermal Field- Eastern California | Open

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara JumpLogsEnergy

  11. Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping...

    Open Energy Info (EERE)

    and paper methods. The focus of the research was to minimize the size and weight of computer systems. Systems identified consist of a wearable PC or handheld computer (PDA) and...

  12. Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping Techniques

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 No revision has Type Term TitleSilver PeakIdlingI'02-

  13. Understanding Fault Characteristics of Inverter-Based Distributed Energy Resources

    SciTech Connect (OSTI)

    Keller, J.; Kroposki, B.

    2010-01-01T23:59:59.000Z

    This report discusses issues and provides solutions for dealing with fault current contributions from inverter-based distributed energy resources.

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

    E-Print Network [OSTI]

    Ray, Asok

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

  15. A Parametric Spectral Estimator for Faults Detection in Induction Machines

    E-Print Network [OSTI]

    Boyer, Edmond

    for fault diagnosis in electrical machines. Current spectral estimation is usually performed using classical and productivity of electrical drives. For electrical motors and generators, fault detection is usually performedA Parametric Spectral Estimator for Faults Detection in Induction Machines El Houssin El Bouchikhi

  16. UNSUPERVISED CLUSTERING FOR FAULT DIAGNOSIS IN NUCLEAR POWER PLANT COMPONENTS

    E-Print Network [OSTI]

    Boyer, Edmond

    1 UNSUPERVISED CLUSTERING FOR FAULT DIAGNOSIS IN NUCLEAR POWER PLANT COMPONENTS Piero Baraldi1 of prototypical behaviors. Its performance is tested with respect to an artificial case study and then applied on transients originated by different faults in the pressurizer of a nuclear power reactor. Key Words: Fault

  17. Diverse neural net solutions to a fault diagnosis problem \\Lambda

    E-Print Network [OSTI]

    Sharkey, Amanda

    Abstract The development of a neural net system for fault diagnosis in a mar­ ine diesel engine system solution to a problem of fault diagnosis in a four­stroke marine diesel engine; that of early to recognise faults in simulated data from a diesel engine; specifically to classify combustion condition

  18. Maps and Plans

    E-Print Network [OSTI]

    Rose, Thomas

    2008-01-01T23:59:59.000Z

    shrouded door to box seats. Rose / Maps and Plans Re-Placing Places 20.1 Rose / Maps and Plans Re-Placing PlacesMaps and Plans Thomas Rose Architectural plans create the

  19. Holomorphic segre preserving maps

    E-Print Network [OSTI]

    Angle, Robert Blair

    2008-01-01T23:59:59.000Z

    for holomorphic Segre maps. Math. Ann. 337, 457-478, (2007).There are no holomorphic maps satisfying criteria (1.37). (j ? C\\{0}, the family of maps given by H = c 1 z 1 , . . . ,

  20. Trivializing maps, the Wilson flow and the HMC algorithm

    E-Print Network [OSTI]

    Martin Lscher

    2009-12-03T23:59:59.000Z

    In lattice gauge theory, there exist field transformations that map the theory to the trivial one, where the basic field variables are completely decoupled from one another. Such maps can be constructed systematically by integrating certain flow equations in field space. The construction is worked out in some detail and it is proposed to combine the Wilson flow (which generates approximately trivializing maps for the Wilson gauge action) with the HMC simulation algorithm in order to improve the efficiency of lattice QCD simulations.

  1. Structure of the eastern Red Rocks and Wind Ridge thrust faults, Wyoming: how a thrust fault gains displacement along strike

    E-Print Network [OSTI]

    Huntsman, Brent Stanley

    1983-01-01T23:59:59.000Z

    STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1983 Major Subject: Geology STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN...

  2. Seismoelectric Imaging of a Shallow Fault System Employing Fault Guided Waves

    E-Print Network [OSTI]

    Cohrs, Frelynn Joseph Reese

    2012-07-16T23:59:59.000Z

    Independent sets of reflection seismic and seismoelectric data were collected, processed, and interpreted with the aim of generating and studying guided waves within a fault zone. While seismic surveys have recently been utilized to investigate...

  3. The split algebras and noncompact Hopf maps

    SciTech Connect (OSTI)

    Hasebe, Kazuki [Department of General Education, Kagawa National College of Technology, Takuma-cho, Mitoyo city, Kagawa 769-1192 (Japan)

    2010-05-15T23:59:59.000Z

    We develop a noncompact version of the Hopf maps based on the split algebras. The split algebras consist of three species: split-complex numbers, split quaternions, and split octonions. They correspond to three noncompact Hopf maps that represent topological maps between hyperboloids in different dimensions with hyperboloid bundle. We realize such noncompact Hopf maps in two ways: one is to utilize the split-imaginary unit, and the other is to utilize the ordinary imaginary unit. Topological structures of the hyperboloid bundles are explored, and the canonical connections are naturally regarded as noncompact gauge field of monopoles.

  4. Deep Maps: A Brief for Digital Palimpsest Mapping Projects (DPMPs, or Deep Maps)

    E-Print Network [OSTI]

    Fishkin, Shelley Fisher

    2011-01-01T23:59:59.000Z

    DEEP MAPS: A Brief for Digital Palimpsest DPMPs, or Deep Maps) SHELLEY FISHER FISHKIN paintings, drawings, maps, photos, books,

  5. Fault Tolerant CORBASpecification, OMG document: ptc/20000404

    E-Print Network [OSTI]

    Roma "La Sapienza", Universit di

    Fault Tolerant CORBASpecification, V1.0 OMG document: ptc/20000404 replaces draft adopted specification ptc/20000304 and submission document orbos/000119 This document is an OMG Final Adopted in the finalization phase. Comments on the content of this document are welcomed, and should be directed to issues

  6. Global Trajectory Planning for Fault Tolerant Manipulators

    E-Print Network [OSTI]

    . Khosla Department of Electrical and Computer Engineering and The Robotics Institute, Carnegie Mellon attribute of robot manipulators in a growing range of applications such as space missions, nuclear waste retrieval, and medical robot­ ics. This trend has spawned a research effort in fault toler­ ant robotics

  7. Fault-tolerant, Universal Adiabatic Quantum Computation

    E-Print Network [OSTI]

    Ari Mizel

    2014-03-30T23:59:59.000Z

    Quantum computation has revolutionary potential for speeding computational tasks such as factoring and simulating quantum systems, but the task of constructing a quantum computer is daunting. Adiabatic quantum computation and other ``hands-off" approaches relieve the need for rapid, precise pulsing to control the system, inspiring at least one high-profile effort to realize a hands-off quantum computing device. But is hands-off incompatible with fault-tolerant? Concerted effort and many innovative ideas have not resolved this question but have instead deepened it, linking it to fundamental problems in quantum complexity theory. Here we present a hands-off approach that is provably (a) capable of scalable universal quantum computation in a non-degenerate ground state and (b) fault-tolerant against an analogue of the usual local stochastic fault model. A satisfying physical and numerical argument indicates that (c) it is also fault-tolerant against thermal excitation below a threshold temperature independent of the computation size.

  8. All row, planar fault detection system

    DOE Patents [OSTI]

    Archer, Charles Jens; Pinnow, Kurt Walter; Ratterman, Joseph D; Smith, Brian Edward

    2013-07-23T23:59:59.000Z

    An apparatus, program product and method for detecting nodal faults may simultaneously cause designated nodes of a cell to communicate with all nodes adjacent to each of the designated nodes. Furthermore, all nodes along the axes of the designated nodes are made to communicate with their adjacent nodes, and the communications are analyzed to determine if a node or connection is faulty.

  9. FPGA Interconnect Delay Fault Testing Erik Chmelar

    E-Print Network [OSTI]

    Stanford University

    A satisfactory FPGA testing method meets several crite- ria. First, the routing resources must be explicitlyFPGA Interconnect Delay Fault Testing Erik Chmelar Center for Reliable Computing Stanford is a scalable manufactur- ing test method for all SRAM-based FPGAs, able to detect multiple interconnect delay

  10. USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE...

    Open Energy Info (EERE)

    USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE GEOLOGIC AND HYDROLOGIC STRUCTURE WITHIN THE COSO GEOTHERMAL FIELD, CALIFORNIA Jump to: navigation, search OpenEI...

  11. Coordinated Fault Tolerance for High-Performance Computing

    SciTech Connect (OSTI)

    Dongarra, Jack; Bosilca, George; et al.

    2013-04-08T23:59:59.000Z

    Our work to meet our goal of end-to-end fault tolerance has focused on two areas: (1) improving fault tolerance in various software currently available and widely used throughout the HEC domain and (2) using fault information exchange and coordination to achieve holistic, systemwide fault tolerance and understanding how to design and implement interfaces for integrating fault tolerance features for multiple layers of the software stackfrom the application, math libraries, and programming language runtime to other common system software such as jobs schedulers, resource managers, and monitoring tools.

  12. Probabilistic model of fault detection in quantum circuits

    E-Print Network [OSTI]

    Anindita Banerjee; Anirban Pathak

    2009-05-12T23:59:59.000Z

    It is shown that the fault testing for quantum circuits does not follow conventional classical techniques. If probabilistic gate like Hadamard gate is included in a circuit then the classical notion of test vector is shown to fail. We have reported several new and distinguishing features of quantum fault and also presented a general methodology for detection of functional faults in a quantum circuit. The technique can generate test vectors for detection of different kinds of fault. Specific examples are given and time complexity of the proposed quantum fault detection algorithm is reported.

  13. Patent Overlay Mapping: Visualizing Technological Distance

    E-Print Network [OSTI]

    Kay, Luciano; Youtie, Jan; Porter, Alan L; Rafols, Ismael

    2012-01-01T23:59:59.000Z

    The purpose of this paper is to present a new global patent map that represents all technological categories, and a method to locate patent data of individual organizations and technological fields on the global map. This second patent overlay map technique is shown to be of potential interest to support competitive intelligence and policy decision-making. The global patent map is based on similarities in citing-to-cited relationships between categories of the International Patent Classification (IPC) of European Patent Office (EPO) patents from 2000 to 2006. This patent dataset, extracted from PatStat database, represents more than 760,000 patent records in more than 400 IPC categories. To illustrate the kind of analytical support offered by this approach, the paper shows the overlay of nanotechnology-related patenting activities of two companies and two different nanotechnology subfields on to the global patent map. The exercise shows the potential of patent overlay maps to visualize technological areas and...

  14. Career Map: Instrumentation Coordinator

    Broader source: Energy.gov [DOE]

    The Wind Program's Career Map provides job description information for Instrumentation Coordinator positions.

  15. EECS 578 Project Proposal Design of Fault-Tolerant Digital Microfluidics-based

    E-Print Network [OSTI]

    Yu-chih Chen; Win San Khwa; Ming Han; Victor Yu

    Microfluidics-based biochips are microsystems that integrate several repetitive laboratory procedures onto a single chip. The architecture of the device is based on a twodimensional array of electrodes (unit cells) that are used to manipulate discrete droplets, which are typically in nanoliter volumes. These miniscule biochips, usually in the range of square millimetres, have enabled on-chip immunoassays, DNA analysis, environmental toxicity monitoring, and many other fields in molecular biology [1]. Microfluidics technology offers many advantages over traditional laboratory methods, which include reduced volume consumption of fluids, faster processing speed, and lower costs due to the ability for mass production [1]. Since microfluidics-based biochips are often used in safety-critical applications, reliability is one of the most important design metrics [1]. In order to recover from erroneous operations, these devices need to be designed for fault-tolerance. Moreover, as the complexity of microfluidics-based lab-on-chip increases, defect density is expected to increase. As a result, efficient runtime recovery techniques are necessary. Designing fault-tolerant biochips requires two steps: fault detection and fault recovery.

  16. Historical Maps Online

    E-Print Network [OSTI]

    Rumsey, David Y.

    2005-01-31T23:59:59.000Z

    and the online library architecture. Keywords: historical maps, maps, GIS, Geographic Information Systems, online libraries, Luna Imaging, Insight, North America, South America, atlases, globes, school geographies, maritime charts, children?s maps, wall maps..., this option would not allow people to truly study the original maps. With my growing interest in software and the Internet, around 1997 I decided to create a software program that would display my collection via the Internet, through collaboration with Luna...

  17. Completing fault models for abductive diagnosis

    SciTech Connect (OSTI)

    Knill, E. (Los Alamos National Lab., NM (United States)); Cox, P.T.; Pietrzykowski, T. (Technical Univ., NS (Canada))

    1992-11-05T23:59:59.000Z

    In logic-based diagnosis, the consistency-based method is used to determine the possible sets of faulty devices. If the fault models of the devices are incomplete or nondeterministic, then this method does not necessarily yield abductive explanations of system behavior. Such explanations give additional information about faulty behavior and can be used for prediction. Unfortunately, system descriptions for the consistency-based method are often not suitable for abductive diagnosis. Methods for completing the fault models for abductive diagnosis have been suggested informally by Poole and by Cox et al. Here we formalize these methods by introducing a standard form for system descriptions. The properties of these methods are determined in relation to consistency-based diagnosis and compared to other ideas for integrating consistency-based and abductive diagnosis.

  18. Calculating the probability of injected carbon dioxide plumes encountering faults

    SciTech Connect (OSTI)

    Jordan, P.D.

    2011-04-01T23:59:59.000Z

    One of the main concerns of storage in saline aquifers is leakage via faults. In the early stages of site selection, site-specific fault coverages are often not available for these aquifers. This necessitates a method using available fault data to estimate the probability of injected carbon dioxide encountering and migrating up a fault. The probability of encounter can be calculated from areal fault density statistics from available data, and carbon dioxide plume dimensions from numerical simulation. Given a number of assumptions, the dimension of the plume perpendicular to a fault times the areal density of faults with offsets greater than some threshold of interest provides probability of the plume encountering such a fault. Application of this result to a previously planned large-scale pilot injection in the southern portion of the San Joaquin Basin yielded a 3% and 7% chance of the plume encountering a fully and half seal offsetting fault, respectively. Subsequently available data indicated a half seal-offsetting fault at a distance from the injection well that implied a 20% probability of encounter for a plume sufficiently large to reach it.

  19. Stuck-at-fault test set compaction

    E-Print Network [OSTI]

    Vanfickell, Jason Michael

    2013-02-22T23:59:59.000Z

    . Test set size under pattern score based dynamic compaction . . . 13 . . . 17 Figure 7. Pattern Score distribution v:ith pattern metric dynamic compaction. . . . . . . . . . . . . . I g LIST OF TABLES Page Table l. l. nuit Target Sclcction Methods.... Fault Target Selection Methods Random Minimum Detection Count Circuit Name c432 c499 c880 c1355 c1908 G2670 Excitation Balance 0. 136296 0. 191652 0. 170293 0. 173310 0. 187486 0. 190484 Pattern Count 1152 873 2693 1394 1708 5148...

  20. Field Mapping (Healy, 1970) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan Leandro,LawFEMAProjectExpressFeltonAir-GroundHealy,

  1. Undulator Hall Air Temperature Fault Scenarios

    SciTech Connect (OSTI)

    Sevilla, J.; Welch, J.; /SLAC; ,

    2010-11-17T23:59:59.000Z

    Recent experience indicates that the LCLS undulator segments must not, at any time following tuning, be allowed to change temperature by more than about {+-}2.5 C or the magnetic center will irreversibly shift outside of acceptable tolerances. This vulnerability raises a concern that under fault conditions the ambient temperature in the Undulator Hall might go outside of the safe range and potentially could require removal and retuning of all the segments. In this note we estimate changes that can be expected in the Undulator Hall air temperature for three fault scenarios: (1) System-wide power failure; (2) Heating Ventilation and Air Conditioning (HVAC) system shutdown; and (3) HVAC system temperature regulation fault. We find that for either a system-wide power failure or an HVAC system shutdown (with the technical equipment left on), the short-term temperature changes of the air would be modest due to the ability of the walls and floor to act as a heat ballast. No action would be needed to protect the undulator system in the event of a system-wide power failure. Some action to adjust the heat balance, in the case of the HVAC power failure with the equipment left on, might be desirable but is not required. On the other hand, a temperature regulation failure of the HVAC system can quickly cause large excursions in air temperature and prompt action would be required to avoid damage to the undulator system.

  2. Pressure test data reveal reservoir barriers/faults

    SciTech Connect (OSTI)

    Hurd, J.D.

    1984-07-30T23:59:59.000Z

    A review of transient pressure test data from an oil reservoir in Libya indicated not only the suspected fault barriers, but also the non-sealing portions of the faults. Extensive seismic data indicated much faulting, and directional trends had been interpreted to be generally northwest-southeast. The reservoir is a heterogeneous dolomite with average permeability of 40 to 50 md and contains neither natural fractures not stratification. Vertical displacement (throw) of each fault block is indicated to be within the range of the dolomite thickness, i.e., 40 to 180 ft. Therefore, when the fault throw is greater than reservoir thickness there is sealing, and when the throw is less than reservoir thickness the faults are non-sealing.

  3. 2009 fault tolerance for extreme-scale computing workshop, Albuquerque, NM - March 19-20, 2009.

    SciTech Connect (OSTI)

    Katz, D. S.; Daly, J.; DeBardeleben, N.; Elnozahy, M.; Kramer, B.; Lathrop, S.; Nystrom, N.; Milfeld, K.; Sanielevici, S.; Scott, S.; Votta, L.; Louisiana State Univ.; Center for Exceptional Computing; LANL; IBM; Univ. of Illinois; Shodor Foundation; Pittsburgh Supercomputer Center; Texas Advanced Computing Center; ORNL; Sun Microsystems

    2009-02-01T23:59:59.000Z

    This is a report on the third in a series of petascale workshops co-sponsored by Blue Waters and TeraGrid to address challenges and opportunities for making effective use of emerging extreme-scale computing. This workshop was held to discuss fault tolerance on large systems for running large, possibly long-running applications. The main point of the workshop was to have systems people, middleware people (including fault-tolerance experts), and applications people talk about the issues and figure out what needs to be done, mostly at the middleware and application levels, to run such applications on the emerging petascale systems, without having faults cause large numbers of application failures. The workshop found that there is considerable interest in fault tolerance, resilience, and reliability of high-performance computing (HPC) systems in general, at all levels of HPC. The only way to recover from faults is through the use of some redundancy, either in space or in time. Redundancy in time, in the form of writing checkpoints to disk and restarting at the most recent checkpoint after a fault that cause an application to crash/halt, is the most common tool used in applications today, but there are questions about how long this can continue to be a good solution as systems and memories grow faster than I/O bandwidth to disk. There is interest in both modifications to this, such as checkpoints to memory, partial checkpoints, and message logging, and alternative ideas, such as in-memory recovery using residues. We believe that systematic exploration of these ideas holds the most promise for the scientific applications community. Fault tolerance has been an issue of discussion in the HPC community for at least the past 10 years; but much like other issues, the community has managed to put off addressing it during this period. There is a growing recognition that as systems continue to grow to petascale and beyond, the field is approaching the point where we don't have any choice but to address this through R&D efforts.

  4. A Turing Machine Resisting Isolated Bursts Of Faults

    E-Print Network [OSTI]

    Capuni, Ilir

    2012-01-01T23:59:59.000Z

    We consider computations of a Turing machine under noise that causes consecutive violations of the machine's transition function. Given a constant upper bound B on the size of bursts of faults, we construct a Turing machine M(B) subject to faults that can simulate any fault-free machine under the condition that bursts are not closer to each other than V for an appropriate V = O(B^2).

  5. Fault Detection and Diagnosis Method for VAV Terminal Units

    E-Print Network [OSTI]

    Miyata, M.; Yoshida, H.; Asada, M.; Wang, F.; Hashiguchi, S.

    2004-01-01T23:59:59.000Z

    : Air density [kg/m3] NOMENCLATURE REFERENCES 1) IEA Annex 25, Building Optimization and Fault Diagnosis Source Book, Eds. J. Hyvarinen and S. Karki, Technical Research Center of Finland, 1996 2) Harunori Yoshida: Typical Faults of Air Conditioning..., IEA Annex 34 ?Detection and Diagnosis Methods in Real Building?, Eds. A. Dexter and J. Pakanen, Section C.2, pp.143-148, 2001 6) Harunori Yoshida, Sanjay Kumar, Yasunori Morita: Online Fault Detection and Diagnosis in VAV Air Handling Unit by RARX...

  6. PHOTOVOLTAIC DC ARC FAULT DETECTOR TESTING AT SANDIA NATIONAL

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

    PHOTOVOLTAIC DC ARC FAULT DETECTOR TESTING AT SANDIA NATIONAL LABORATORIES Jay Johnson 1 , Birger Pahl 2 , Charles Luebke 2 , Tom Pier 2 , Theodore Miller 3 , Jason Strauch 1 ,...

  7. automatic fault management: Topics by E-print Network

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

    Software Fault Diagnosis by Exploiting Application Signatures Xiaoning Ding - The Ohio - The Ohio State University ABSTRACT Application problem diagnosis in complex...

  8. Active Fault Controls At High-Temperature Geothermal Sites- Prospectin...

    Open Energy Info (EERE)

    the level of unrecognized active faults present in these areas. Analysis of low-sun-angle aerial photography acquired over the Needle Rocks, Astor Pass, Empire, and Lee...

  9. Fault-tolerant distributed transactions for partitioned OLTP databases

    E-Print Network [OSTI]

    Jones, Evan P. C. (Evan Philip Charles), 1981-

    2012-01-01T23:59:59.000Z

    This thesis presents Dtxn, a fault-tolerant distributed transaction system designed specifically for building online transaction processing (OLTP) databases. Databases have traditionally been designed as general purpose ...

  10. Active Fault Segments As Potential Earthquake Sources- Inferences...

    Open Energy Info (EERE)

    have not been investigated to determine their subsurface geometry, faulting intensity and constituents (fluids, sediments) for proper characterization of tectonic rift...

  11. Upper crustal faulting in an obliquely extending orogen, structural...

    Open Energy Info (EERE)

    eastern California Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Upper crustal faulting in an obliquely extending orogen,...

  12. Memory-mapped transactions

    E-Print Network [OSTI]

    Sukha, Jim

    2005-01-01T23:59:59.000Z

    Memory-mapped transactions combine the advantages of both memory mapping and transactions to provide a programming interface for concurrently accessing data on disk without explicit I/O or locking operations. This interface ...

  13. Real-Time Traffic Maps

    E-Print Network [OSTI]

    Goldsberry, Kirk Patrick

    2007-01-01T23:59:59.000Z

    d. (2007). Barcelona Traffic Map. Barcelona. 2007. Berendt,Spatial Thinking with Geographic Maps: An Empirical Study.Data on Choropleth Maps in Series." Annals of the

  14. WIPP Projects Interative Map

    Broader source: Energy.gov [DOE]

    View WIPP Projects in a larger map. To report corrections, please emailWeatherizationInnovation@ee.doe.gov.

  15. National Hydropower Map

    Broader source: Energy.gov [DOE]

    High-resolution map produced by Oak Ridge National Laboratory showing hydropower resources throughout the United States.

  16. SERC Grants Interactive Map

    Broader source: Energy.gov [DOE]

    View SERC Grants in a larger map. To report corrections, please email SustainableEnergyWAP@ee.doe.gov.

  17. MAPS MANUAL 2010 PROTOCOL

    E-Print Network [OSTI]

    DeSante, David F.

    MAPS MANUAL 2010 PROTOCOL INSTRUCTIONS FOR THE ESTABLISHMENT AND OPERATION OF CONSTANT-EFFORT BIRD-BANDING STATIONS AS PART OF THE MONITORING AVIAN PRODUCTIVITY AND SURVIVORSHIP (MAPS) PROGRAM David F. De;ACKNOWLEDGEMENTS We thank MAPS biologists Eric Feuss, Denise Jones, Sara Martin, Eric (Zed) Ruhlen, Hillary Smith

  18. MAPS MANUAL 2014 PROTOCOL

    E-Print Network [OSTI]

    DeSante, David F.

    MAPS MANUAL 2014 PROTOCOL INSTRUCTIONS FOR THE ESTABLISHMENT AND OPERATION OF CONSTANT-EFFORT BIRD-BANDING STATIONS AS PART OF THE MONITORING AVIAN PRODUCTIVITY AND SURVIVORSHIP (MAPS) PROGRAM David F. De;ACKNOWLEDGEMENTS We thank MAPS biologists Eric Feuss, Denise Jones, Sara Martin, Eric (Zed) Ruhlen, Hillary Smith

  19. MAPS MANUAL 2008 PROTOCOL

    E-Print Network [OSTI]

    DeSante, David F.

    MAPS MANUAL 2008 PROTOCOL INSTRUCTIONS FOR THE ESTABLISHMENT AND OPERATION OF CONSTANT-EFFORT BIRD-BANDING STATIONS AS PART OF THE MONITORING AVIAN PRODUCTIVITY AND SURVIVORSHIP (MAPS) PROGRAM David F. De;ACKNOWLEDGEMENTS We thank MAPS biologists Eric Feuss, Denise Jones, Sara Martin, Eric (Zed) Ruhlen, Jim Saracco

  20. MAPS MANUAL 2013 PROTOCOL

    E-Print Network [OSTI]

    DeSante, David F.

    MAPS MANUAL 2013 PROTOCOL INSTRUCTIONS FOR THE ESTABLISHMENT AND OPERATION OF CONSTANT-EFFORT BIRD-BANDING STATIONS AS PART OF THE MONITORING AVIAN PRODUCTIVITY AND SURVIVORSHIP (MAPS) PROGRAM David F. De;ACKNOWLEDGEMENTS We thank MAPS biologists Eric Feuss, Denise Jones, Sara Martin, Eric (Zed) Ruhlen, Hillary Smith

  1. MAPS MANUAL 2011 PROTOCOL

    E-Print Network [OSTI]

    DeSante, David F.

    MAPS MANUAL 2011 PROTOCOL INSTRUCTIONS FOR THE ESTABLISHMENT AND OPERATION OF CONSTANT-EFFORT BIRD-BANDING STATIONS AS PART OF THE MONITORING AVIAN PRODUCTIVITY AND SURVIVORSHIP (MAPS) PROGRAM David F. De;ACKNOWLEDGEMENTS We thank MAPS biologists Eric Feuss, Denise Jones, Sara Martin, Eric (Zed) Ruhlen, Hillary Smith

  2. MAPS MANUAL 2012 PROTOCOL

    E-Print Network [OSTI]

    DeSante, David F.

    MAPS MANUAL 2012 PROTOCOL INSTRUCTIONS FOR THE ESTABLISHMENT AND OPERATION OF CONSTANT-EFFORT BIRD-BANDING STATIONS AS PART OF THE MONITORING AVIAN PRODUCTIVITY AND SURVIVORSHIP (MAPS) PROGRAM David F. De;ACKNOWLEDGEMENTS We thank MAPS biologists Eric Feuss, Denise Jones, Sara Martin, Eric (Zed) Ruhlen, Hillary Smith

  3. Efficient Fault Tolerance: an Approach to Deal with Transient Faults in Multiprocessor Architectures

    E-Print Network [OSTI]

    Firenze, Università degli Studi di

    , 36, 56126 Pisa, Italy ** IEI/CNR, Via S. Maria, 46, 56126 Pisa, Italy Abstract Dynamic error, while making efficient use of the available resources. To this end, dynamic error processing must is integrated with a mechanism for dynamic error processing in a complete fault tolerance strategy. Reliability

  4. The structure and evolution of small-displacement strike-slip faults in porous sandstone

    E-Print Network [OSTI]

    Schafer, Kirk Wyatt

    2002-01-01T23:59:59.000Z

    relationship between the progressive addition of subsidiary fault segments (deformation bands) and earlier-formed linkage structures. The along-strike variability and distribution of fault structure are documented and used to assess the role of early fault...

  5. Early Holocene and Late Pleistocene slip rates of the southern Dead Sea Fault determined from 10

    E-Print Network [OSTI]

    Klinger, Yann

    sites located along the Wadi Araba Fault (WAF) segment of the Dead Sea Fault are targeted on the DSF, focusing on the Wadi Araba Fault (WAF) segment (Figure 1b). The WAF strikes N12E for about 160

  6. Neural Network-Based Classification of Single-Phase Distribution Transformer Fault Data

    E-Print Network [OSTI]

    Zhang, Xujia

    2006-08-16T23:59:59.000Z

    The ultimate goal of this research is to develop an online, non-destructive, incipient fault detection system that is able to detect incipient faults in transformers and other electric equipment before the faults become catastrophic...

  7. Fewer Faults for Faster Computing | EMSL

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000TechnologyTuneFewer Faults for Faster

  8. Sandia National Laboratories: parallel arc-fault

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1developmentturbine bladelifetime ismobileparallel arc-fault Sandia Research on PV

  9. Sandia National Laboratories: arc-fault detector

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1development Sandia, NREL Release Wavearc-fault circuit interrupter Sandia Research

  10. Sandia National Laboratories: Arc-Fault Detection

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy Advanced Nuclear EnergyCouncilSandia's Work withArc-Fault

  11. Reflection seismic profiling in Wabash Valley fault system in southwestern Indiana

    SciTech Connect (OSTI)

    Rene, R.M.; Hester, N.C.; Stanonis, F.L. (Indiana Univ., Bloomington (USA))

    1989-08-01T23:59:59.000Z

    During the summer of 1988 common-depth-point (CDP) reflection seismic profiling was initiated by ARPEX in southwestern Indiana in the Wabash Valley fault system. A 2.2-im (1.4-mi) east-west profile was shot across the Mt. Vernon graben in Posey County. Minihole shooting in 21-m (68.9-ft) patterns using 3.4 kg (7.5 lb) of seismic explosives distributed in five 3-m (10-ft) holes provided the energy source. Most shotholes were made with a reversible air-driven penetrating tool that was effective in dense clays. The 12-geophone array length was 43 m (141 ft), and the nominal far-trace offset was 2.1 km (7,000 ft). A 48-channel recording yielded 24-CDP coverage at 11-m (36-ft) intervals. Data were enhanced by gapped deconvolution, bandpass filtering, and CDP stack. The strongest and most continuous reflections at 0.75 and 1.6 sec are associated with the New Albany Shale (Devonian-Mississippian) and Eau Claire Formation (Cambrian), respectively. Within the Mt. Vernon graben and east of the Spenser Consolidated oil field, the depth to Eau Claire Formation apparently increases by approximately 60 m (197 ft) over a horizontal distance of 1.4 km (0.9 mi). Minor faulting east of the Spencer Consolidated field appears to be synthetic to the Hovey lake fault, which bounds the eastern side of the Mt. Vernon graben. Tentative interpretations of faulting and weak reflections from depths greater than 4.5 km (15,000 ft) may be clarified by additional data processing and by additional seismic profiling planned by ARPEX.

  12. SciTech Connect: Development of Asset Fault Signatures for Prognostic...

    Office of Scientific and Technical Information (OSTI)

    Development of Asset Fault Signatures for Prognostic and Health Management in the Nuclear Industry Citation Details In-Document Search Title: Development of Asset Fault Signatures...

  13. Fault Analysis at a Wind Power Plant for One Year of Observation: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Mills, Z.; Foster, R.; Conto, J.; Ellis, A.

    2008-07-01T23:59:59.000Z

    This paper analyzes the fault characteristics observed at a wind power plant, and the behavior of the wind power plant under fault events.

  14. Effect of differential subsidence in growth-faulted regions on E-log patterns and preservation potential

    SciTech Connect (OSTI)

    Edwards, M.B.

    1985-02-01T23:59:59.000Z

    Detailed electric log correlation, supplemented by cores, in the Eocene Wilcox Group and the Oligocene Frio Formation of the Texas Gulf basin contradicts a commonly held notion that changes in log character across growth faults exclusively reflect changes in environment. An invariable consequence of growth faulting is thickening of a depositional unit in the downthrown block, reflecting a greater subsidence rate. The growth ratio (downthrown or upthrown) varies from just over 1:1 to as much as 10:1. Analysis and mapping of log character indicate that the basic unit of both deposition and physical correlation is regressive coarsening-upward sequences. In Wilcox deltas, prodelta shales pass up into delta-front sandstones while in Frio barrier-bar or standplains, shelf and lower-shoreface deposits pass up into upper-shoreface sandstones. Regressive packages grade downdip in environment from delta plain and bay or lagoon to offshore marine. Growth faults had no significant surface expression and did not separate contrasting environments. A marked change in log character (e.g., from smooth to serrated) across a growth fault in a regressive shoreface sequence appears to indicate that the subsidence rate of the downthrown block exceeded a threshold value, enabling preservation of low-energy muddy layers and possibly episodic waning-flow storm deposits that were largely destroyed by fair-weather wave reworking on the upthrown block. This concept has implications both to regional stratigraphy and reservoir properties. Correlative units can abruptly change log character across growth faults, impeding correlation. Sandstones in the downthrown block may contain shale barriers to vertical fluid flow if the threshold subsidence rate was exceeded.

  15. The faults that move during earthquakes do not always come

    E-Print Network [OSTI]

    Cipolla, Roberto

    often live near active faults, because where there is a fault there is usually a water supply. And that means these places become part of major trade routes, like the Silk Roads across Asia from Xi urban building. What is even more frighten- ing is that in many parts of the world poor

  16. Fault Detection, Identification and Accommodation for an Electro-hydraulic

    E-Print Network [OSTI]

    Yao, Bin

    Fault Detection, Identification and Accommodation for an Electro-hydraulic System: An Adaptive in electro-hydraulic systems. It is well known fact that any realistic model of a hydraulic system suffers, such a scheme becomes a natural choice for designing robust fault detection algorithms for electro-hydraulic

  17. Fuzzy Pattern Recognition Based Fault Diagnosis Rafik Bensaadi1

    E-Print Network [OSTI]

    Boyer, Edmond

    Fuzzy Pattern Recognition Based Fault Diagnosis Rafik Bensaadi1 , Leïla H. Mouss1 , Mohamed D in this paper the design of a Fuzzy Pattern Recognition System (FPRS) that solves, in real time, the main. Keywords: Diagnosis, fault detection, pattern recognition, fuzzy control, conjugate gradients, complex

  18. Arcing fault in sub-distribution branch circuits

    SciTech Connect (OSTI)

    Parise, G.; Grasseli, U.; Luozzo, V. Di (Univ. di Roma, Rome (Italy). Dept. di Ingegneria Elettrica)

    1993-04-01T23:59:59.000Z

    It's well known the importance of short-circuit current evaluation for the design of any power system. Every system is subject to faults, moreover short-circuits and ground faults can be expected in any point. Even if the maximum and minimum values are generally defined with reference at a bolted-fault, bolted short-circuits are rare and the fault usually involves arcing and burning; particularly the limit value of minimum short-circuit depends really on arcing-fault. In earlier experimental investigations into the functional simulation of insulation loss, in branch circuit conductors, the authors chose to normalize the arcing-fault simulation to be used in laboratory tests. This conventional simulation allows characterization of this intrinsically random phenomenon by means of a probabilistic approach, in order to define in statistical terms the expected short circuit value. The authors examine more closely the arcing-fault in the design of sub distribution branch-circuits as weak points of the installation. In fact, what they propose are straightforward criteria, whether in the structure of the system or in the coordination of protection, which afford a more rational control on arcing-fault.

  19. Symbolic identification for fault detection in aircraft gas turbine engines

    E-Print Network [OSTI]

    Ray, Asok

    Symbolic identification for fault detection in aircraft gas turbine engines S Chakraborty, S Sarkar and computationally inexpensive technique of component-level fault detection in aircraft gas-turbine engines identification, gas turbine engines, language-theoretic analysis 1 INTRODUCTION The propulsion system of modern

  20. Fault detection and diagnosis capabilities of test sequence selection

    E-Print Network [OSTI]

    Thulsiraman, Krishnaiyan

    Review Fault detection and diagnosis capabilities of test sequence selection methods based on the FSM model T Ramalingam*, Anindya Dast and K ThuIasiraman* Different test sequence selection methods resolution in diagnosing the fault. The test sequence selection methods are then compared based on the length

  1. All-to-all sequenced fault detection system

    DOE Patents [OSTI]

    Archer, Charles Jens (Rochester, MN); Pinnow, Kurt Walter (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian Edward (Rochester, MN)

    2010-11-02T23:59:59.000Z

    An apparatus, program product and method enable nodal fault detection by sequencing communications between all system nodes. A master node may coordinate communications between two slave nodes before sequencing to and initiating communications between a new pair of slave nodes. The communications may be analyzed to determine the nodal fault.

  2. Automatic Fault Characterization via Abnormality-Enhanced Classification

    SciTech Connect (OSTI)

    Bronevetsky, G; Laguna, I; de Supinski, B R

    2010-12-20T23:59:59.000Z

    Enterprise and high-performance computing systems are growing extremely large and complex, employing hundreds to hundreds of thousands of processors and software/hardware stacks built by many people across many organizations. As the growing scale of these machines increases the frequency of faults, system complexity makes these faults difficult to detect and to diagnose. Current system management techniques, which focus primarily on efficient data access and query mechanisms, require system administrators to examine the behavior of various system services manually. Growing system complexity is making this manual process unmanageable: administrators require more effective management tools that can detect faults and help to identify their root causes. System administrators need timely notification when a fault is manifested that includes the type of fault, the time period in which it occurred and the processor on which it originated. Statistical modeling approaches can accurately characterize system behavior. However, the complex effects of system faults make these tools difficult to apply effectively. This paper investigates the application of classification and clustering algorithms to fault detection and characterization. We show experimentally that naively applying these methods achieves poor accuracy. Further, we design novel techniques that combine classification algorithms with information on the abnormality of application behavior to improve detection and characterization accuracy. Our experiments demonstrate that these techniques can detect and characterize faults with 65% accuracy, compared to just 5% accuracy for naive approaches.

  3. Fault Tolerant Oxygen Control of a Diesel Engine Air System

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Fault Tolerant Oxygen Control of a Diesel Engine Air System Rainer Nitsche Matthias Bitzer control problem of a Diesel engine air system having a jammed Exhaust Gas Recirculation (EGR) valve of the air system. Keywords: Fault tolerant control, Diesel engine, Air system, Model-based trajectory

  4. Online Fault Detection and Tolerance for Photovoltaic Energy Harvesting Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    and weather conditions (e.g., clouds), and the output power of PV systems is directly dependent on solar and mitigate the output power shortage under low levels of solar irradiance. Moreover, PV panels exhibit highly fault detection and tolerance. Our fault detection and tolerance technique reduces output power

  5. Using Reinforcement Learning for Proactive Network Fault Management

    E-Print Network [OSTI]

    Shayman, Mark A.

    fault management demands intelligent man­ agement actions be taken by central manager or remote agents.g., alarms) which appear sequentially. For example, on the manager's side, polling devices randomly (orUsing Reinforcement Learning for Proactive Network Fault Management Qiming He, Mark A. Shayman

  6. Test generation and fault detection for VLSI PPL circuits

    SciTech Connect (OSTI)

    Amin, A.A.M.

    1987-01-01T23:59:59.000Z

    The problem of design for testability of PPL logic circuits is addressed. A test-generation package was developed which utilizes the special features of PPL logic to generate high fault coverage test vectors at a reduced computational cost. The test strategy assumes that one of the scan design techniques is used. A new methodology for test-vectors compaction without compromising the fault coverage is also proposed. A fault-oriented test-generation algorithm combined with a heuristic test-generation algorithm are the essential ingredients of this package. The fault-oriented algorithm uses a modified D-algorithm which includes look-ahead features and a new seven-valued logic to improve the average speed of the test-generation process. Fault coverages in the 90% range were obtained using the test sequences generated by this package.

  7. Development and evolution of detachment faulting along 50 km of the Mid-Atlantic Ridge near 16.5N

    E-Print Network [OSTI]

    Smith, Deborah K.; Schouten, Hans; Dick, Henry; Cann, Joe; Salters, Vincent; Marschall, Horst R.; Ji, Fuwu; Yoerger, Dana; Sanfilippo, Alessio; Parnell-Turner, Ross; Palmiotto, Camilla; Zheleznov, Alexei; Bai, Hailong; Junkin, Will; Urann, Ben; Dick, Spencer; Sulanowska, Margaret; Lemmond, Peter; Curry, Scott

    2014-12-05T23:59:59.000Z

    5 Ma parts of the ridge axis have 50 experienced periods of two-sided detachment faulting. 51 3 Index terms: 3035 Midocean ridge processes; 3045 Seafloor morphology, geology and 52 geophysics; 3075 Submarine tectonics and volcanism 53 1... that the west flank of the 16.5N area is one of active detachment faulting. 122 On the eastern side of the ridge axis at 16 38.4N, a large, basalt-hosted, inactive 123 hydrothermal vent field (Krasnov hydrothermal field, Fig. 3), has been the focus...

  8. Acceleration and evolution of faults: An example from the Hunter MountainPanamint Valley fault zone, Eastern California

    E-Print Network [OSTI]

    Amelung, Falk

    : R.D. van der Hilst Keywords: geodesy fault evolution InSAR rock mechanics Western United States assumes a monotonic increase in slip rate with time as the fault matures and straightens. The rate. However, before this can be realized, we need to better understand the various sources for discrepancies

  9. Boullier The fault zone geology 1 Fault zone geology: lessons from drilling through the Nojima and 1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    drilling through the Nojima and 1 Chelungpu faults 2 3 Anne-Marie Boullier 4-Marie.Boullier@obs.ujf-grenoble.fr 8 9 Abstract 10 Several drilling projects have been conducted through significant topics 32 for future research, one of which was "fault zone drilling

  10. Boullier The fault zone geology 1 Fault zone geology: lessons from drilling through the Nojima and 1

    E-Print Network [OSTI]

    Boyer, Edmond

    drilling through the Nojima and 1 Chelungpu faults 2 3 Anne-Marie Boullier 4-Marie.Boullier@obs.ujf-grenoble.fr 8 9 Abstract 10 Several drilling projects have been conducted through was "fault zone drilling combined with surface-based 33 geophysical and geological

  11. Feb. 11, 2008 Advanced Fault Tolerance Solutions for High Performance Computing 1/47 Advanced Fault Tolerance Solutions

    E-Print Network [OSTI]

    Engelmann, Christian

    Feb. 11, 2008 Advanced Fault Tolerance Solutions for High Performance Computing 1/47 RAS RAS Advanced Fault Tolerance Solutions for High Performance Computing Christian Engelmann Oak Ridge National Solutions for High Performance Computing 2/47 · Nation's largest energy laboratory · Nation's largest

  12. Dot Density Maps Dot density maps, or dot maps, portray the geographic distribution of discrete phenomena

    E-Print Network [OSTI]

    Klippel, Alexander

    Dot Density Maps Dot density maps, or dot maps, portray the geographic distribution of discrete for representing geographic patterns. Dot density maps are particularly useful for understanding global distribution of the mapped phenomenon and comparing relative densities of different regions on the map. Dot

  13. Efficient and flexible fault tolerance and migration of scientific simulation using CUMULVS

    SciTech Connect (OSTI)

    Kohl, J.A.; Papadopoulos, P.M.

    1998-05-01T23:59:59.000Z

    Many practical scientific applications would benefit from a simple checkpointing mechanism to provide automatic restart or recovery in response to faults and failures. CUMULVS is a middleware infrastructure for interacting with parallel scientific simulations to support online visualization and computational steering. The base CUMULVS system has been extended to provide a user-level mechanism for collecting checkpoints in a parallel simulation program. Via the same interface that CUMULVS uses to identify and describe data fields for visualization and parameters for steering, the user application can select the minimal program state necessary to restart or migrate an application task. The CUMULVS run-time system uses this information to efficiently recover fault-tolerant applications by restarting failed tasks. Application tasks can also be migrated -- even across heterogeneous architecture boundaries -- to achieve load balancing or to improve the task`s locality with a required resource. This paper describes the CUMULVS interface for checkpointing, the issues faced in utilizing this interface when developing fault-tolerant and migrating applications, and the direction of future research in this area.

  14. Preferred orientation of phyllosilicates: Comparison of fault gouge, shale and schist

    SciTech Connect (OSTI)

    Wenk, Hans-Rudolf; Kanitpanyacharoen, Waruntorn; Voltolini, Marco (UCB)

    2010-08-04T23:59:59.000Z

    Samples of fault gouge from the San Andreas Fault drill hole (SAFOD), a shale from the North Sea sedimentary basin and schists from metamorphic rocks in the Alps have been analyzed with high energy synchrotron X-rays to determine preferred orientation of mica and clay minerals. The method relies on obtaining 2D diffraction images which are then processed with the crystallographic Rietveld method, implemented in the software MAUD, allowing for deconvolution of phases and extraction of their orientation distributions. It is possible to distinguish between detrital illite/muscovite and authigenic illite/smectite, kaolinite and chlorite, and muscovite and biotite, with strongly overlapping peaks in the diffraction pattern. The results demonstrate that phyllosilicates show large texture variations in various environments, where different mechanisms produce the rock microfabrics: fault gouge fabrics are quite weak and asymmetric with maxima for (001) in the range of 1.5-2.5 multiples of random distribution (m.r.d.). This is attributed to heterogeneous deformation with randomization, as well as dissolution-precipitation reactions. Shale fabrics have maxima ranging from 3 to 9 m.r.d. and this is due to sedimentation and compaction. The strongest fabrics were observed in metamorphic schists (10-14 m.r.d.) and developed by deformation as well as recrystallization in a stress field. In the analyzed samples, fabrics of co-existing quartz are weak. All phyllosilicate textures can be explained by orientation of (001) platelets, with no additional constraints on a-axes.

  15. Generalized qudit Choi maps

    E-Print Network [OSTI]

    M. A. Jafarizadeh; M. Rezaeen; S. Ahadpour

    2006-07-24T23:59:59.000Z

    Following the linear programming prescription of Ref. \\cite{PRA72}, the $d\\otimes d$ Bell diagonal entanglement witnesses are provided. By using Jamiolkowski isomorphism, it is shown that the corresponding positive maps are the generalized qudit Choi maps. Also by manipulating particular $d\\otimes d$ Bell diagonal separable states and constructing corresponding bound entangled states, it is shown that thus obtained $d\\otimes d$ BDEW's (consequently qudit Choi maps) are non-decomposable in certain range of their parameters.

  16. Steps toward fault-tolerant quantum chemistry.

    SciTech Connect (OSTI)

    Taube, Andrew Garvin

    2010-05-01T23:59:59.000Z

    Developing quantum chemistry programs on the coming generation of exascale computers will be a difficult task. The programs will need to be fault-tolerant and minimize the use of global operations. This work explores the use a task-based model that uses a data-centric approach to allocate work to different processes as it applies to quantum chemistry. After introducing the key problems that appear when trying to parallelize a complicated quantum chemistry method such as coupled-cluster theory, we discuss the implications of that model as it pertains to the computational kernel of a coupled-cluster program - matrix multiplication. Also, we discuss the extensions that would required to build a full coupled-cluster program using the task-based model. Current programming models for high-performance computing are fault-intolerant and use global operations. Those properties are unsustainable as computers scale to millions of CPUs; instead one must recognize that these systems will be hierarchical in structure, prone to constant faults, and global operations will be infeasible. The FAST-OS HARE project is introducing a scale-free computing model to address these issues. This model is hierarchical and fault-tolerant by design, allows for the clean overlap of computation and communication, reducing the network load, does not require checkpointing, and avoids the complexity of many HPC runtimes. Development of an algorithm within this model requires a change in focus from imperative programming to a data-centric approach. Quantum chemistry (QC) algorithms, in particular electronic structure methods, are an ideal test bed for this computing model. These methods describe the distribution of electrons in a molecule, which determine the properties of the molecule. The computational cost of these methods is high, scaling quartically or higher in the size of the molecule, which is why QC applications are major users of HPC resources. The complexity of these algorithms means that MPI alone is insufficient to achieve parallel scaling; QC developers have been forced to use alternative approaches to achieve scalability and would be receptive to radical shifts in the programming paradigm. Initial work in adapting the simplest QC method, Hartree-Fock, to this the new programming model indicates that the approach is beneficial for QC applications. However, the advantages to being able to scale to exascale computers are greatest for the computationally most expensive algorithms; within QC these are the high-accuracy coupled-cluster (CC) methods. Parallel coupledcluster programs are available, however they are based on the conventional MPI paradigm. Much of the effort is spent handling the complicated data dependencies between the various processors, especially as the size of the problem becomes large. The current paradigm will not survive the move to exascale computers. Here we discuss the initial steps toward designing and implementing a CC method within this model. First, we introduce the general concepts behind a CC method, focusing on the aspects that make these methods difficult to parallelize with conventional techniques. Then we outline what is the computational core of the CC method - a matrix multiply - within the task-based approach that the FAST-OS project is designed to take advantage of. Finally we outline the general setup to implement the simplest CC method in this model, linearized CC doubles (LinCC).

  17. Locating hardware faults in a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J.; Megerian, Mark G.; Ratterman, Joseph D.; Smith, Brian E.

    2010-04-13T23:59:59.000Z

    Locating hardware faults in a parallel computer, including defining within a tree network of the parallel computer two or more sets of non-overlapping test levels of compute nodes of the network that together include all the data communications links of the network, each non-overlapping test level comprising two or more adjacent tiers of the tree; defining test cells within each non-overlapping test level, each test cell comprising a subtree of the tree including a subtree root compute node and all descendant compute nodes of the subtree root compute node within a non-overlapping test level; performing, separately on each set of non-overlapping test levels, an uplink test on all test cells in a set of non-overlapping test levels; and performing, separately from the uplink tests and separately on each set of non-overlapping test levels, a downlink test on all test cells in a set of non-overlapping test levels.

  18. MAP3S precipitation chemistry network: seventh periodic summary report, 1983. [MAP3S Network

    SciTech Connect (OSTI)

    Rothert, J.E.; Dana, M.T.

    1984-11-01T23:59:59.000Z

    This summary report, the seventh in the series, contains complete field and chemical data from the MAP3S Precipitation Chemistry Network for the year 1983. Sections cover QA/QC of the MAP3S/PCN; network history, network site information and a MAP3S/PCN bibliography; and a brief statistical look at the laboratory operations for 1983. There is also a brief statistical summary for 1982 to 1983. Included under the Quality Control section are the QA audits for site performance, laboratory comparisons, field blank and pH test results, and sample shipping and analysis results. Included is a listing of cooperating organizations and personnel for the MAP3S/PCN. 10 references, 10 figures, 32 tables.

  19. Mapping in the Cloud: Working with Google Maps and other Mapping Services

    E-Print Network [OSTI]

    Peterson, Michael

    2014-11-19T23:59:59.000Z

    :document.getElementById('map'), /*ID of element on the page where you want the map added*/ zoom:10, /*initial zoom level of map*/ latLng:{lat:39.743943, lng:-105.020089}, /*center of map in latitude/longitude*/ mtype...:'map' /*map type (map)*/ }; /*Construct an instance of MQA.TileMap with the options object*/ window.map = new MQA.TileMap(options); /*An example using the MQA.Poi constructor. You will need to pass in an object containing the lat (Latitude) and lng (Longitude...

  20. Approximation of Harmonic Maps and Wave Maps Soren Bartels

    E-Print Network [OSTI]

    Bartels, Soeren

    Approximation of Harmonic Maps and Wave Maps S¨oren Bartels Partial differential equations to certain boundary condtions. If X = then critical points u : N are called harmonic maps into N, ·) = u0, tu(0, ·) = v0. To approximate harmonic maps or wave maps we consider a regular triangula- tion

  1. Visualization of stacking faults in fcc crystals in plastic deformations

    E-Print Network [OSTI]

    Takeshi Kawasaki; Akira Onuki

    2011-11-27T23:59:59.000Z

    Using molecular dynamics simulation, we investigate the dynamics of stacking faults in fcc crystals in uniaxial stretching in a Lennard-Jones binary mixture composed of 4096 particles in three dimensions. We visualize stacking faults using a disorder variable $D_j(t)$ for each particle $j$ constructed from local bond order parameters based on spherical harmonics (Steinhardt order parameters). Also introducing a method of bond breakage, we examine how stacking faults are formed and removed by collective particle motions. These processes are relevant in plasticity of fcc crystals.

  2. Fault-tree construction and calculations on a microcomputer

    E-Print Network [OSTI]

    Beckmann, Jeffery Linn

    1985-01-01T23:59:59.000Z

    Figure 17 - Program Overview Screen Figure 18 ? Main Menu Screen Figure 19 ? Invalid Command Screen Figure 20 - First Usage of Disk Screen Figure 21 ? Fault-tree Name Screen Figure 22 - Invalid Fault-tree Name Screen Fi gure 23 ? TOP EVENT Label... to do? Fi gure 19. Inval i d Command Screen 53 CREATE - This command allows the user to build a new fault tree. After a CREATE command is entered, the system wi 1 1 display the screen in Figure 20. This question is asked in order to determine...

  3. Experimental characterization of faults on low-voltage systems

    E-Print Network [OSTI]

    Ahmed, Jubayer

    1992-01-01T23:59:59.000Z

    arcing ground faults '10'. The first scheme is very similar to the Ground Sensor Protection scheme described in i8j. The second scheme employs the fact that the voltage waveshape at the 1'suit point is flat topped. Harmonic analysis shows that... value when an arcing fault takes place. Continued presence of a, relatively high third- harmonic component in the bus voltage is a definite sign that there is an arcing fault in the system, Kusko and Peeran recommended the use of a, third harmonic...

  4. In-situ stress and fracture permeability in a fault-hosted geothermal reservoir at Dixie Valley, Nevada

    SciTech Connect (OSTI)

    Hickman, S. [Geological Survey, Menlo Park, CA (United States); Barton, C.; Zoback, M. [Stanford Univ., CA (United States)] [and others

    1997-12-31T23:59:59.000Z

    As part of a study relating fractured rock hydrology to in-situ stress and recent deformation within the Dixie Valley Geothermal Field, borehole televiewer logging and hydraulic fracturing stress measurements were conducted in a 2.7-km-deep geothermal production well (73B-7) drilled into the Stillwater fault zone. Borehole televiewer logs from well 73B-7 show numerous drilling-induced tensile fractures, indicating that the direction of the minimum horizontal principal stress, S{sub hmin}, is S57{degrees}E. As the Stillwater fault at this location dips S50{degrees}E at {approximately}53{degrees}, it is nearly at the optimal orientation for normal faulting in the current stress field. Analysis of the hydraulic fracturing data shows that the magnitude of S{sub hmin} is 24.1 and 25.9 MPa at 1.7 and 2.5 km, respectively. In addition, analysis of a hydraulic fracturing test from a shallow well 1.5 km northeast of 73B-7 indicates that the magnitude of S{sub hmin} is 5.6 MPa at 0.4 km depth. Coulomb failure analysis shows that the magnitude of S{sub hmin} in these wells is close to that predicted for incipient normal faulting on the Stillwater and subparallel faults, using coefficients of friction of 0.6-1.0 and estimates of the in-situ fluid pressure and overburden stress. Spinner flowmeter and temperature logs were also acquired in well 73B-7 and were used to identify hydraulically conductive fractures.

  5. On-Line Fault Detection and Compensation of Hydraulic Driven Machines Using Modelling Techniques

    E-Print Network [OSTI]

    Thawonmas, Ruck

    On-Line Fault Detection and Compensation of Hydraulic Driven Machines Using Modelling Techniques C purpose of hydraulic driven machines as well as for the compensation of incipient faults where applicable: Modelling, Simulation, Hydraulic motors, Fault detection, Fault Compensation 1. Introduction Model

  6. Thermal anomalies indicate preferential flow along faults in unconsolidated sedimentary aquifers

    E-Print Network [OSTI]

    Bense, Victor

    Thermal anomalies indicate preferential flow along faults in unconsolidated sedimentary aquifers V in unconsolidated siliciclastic aquifers off-set by normal-faults in the Lower Rhine Embayment, Germany. High plane. Most current models of fault hydrology in unconsolidated sedimentary sequences assume faults

  7. Geometry and scaling relations of a population of very small rift-related normal faults

    E-Print Network [OSTI]

    normal faults within the Solite Quarry of the Dan River rift basin range in length from a few millimetres AND SCALING RELATIONS The small normal faults are present in quarries of the Virginia Solite Corporation outcrops and quarried boulders (Fig. 2). The fault traces are typically straight, although the fault tips

  8. Integrated Management Requirements mapping

    SciTech Connect (OSTI)

    Holmes, J.T.; Andrews, N.S.

    1992-06-01T23:59:59.000Z

    This document contains five appendices documenting how Sandia implemented the DOE Conduct of Operations (5480.19) and DOE Quality Assurance (5700.6C) orders. It provides a mapping of the Sandia integrated requirements to the specific requirements of each Order and a mapping to Sandia`s approved program for implementing the Conduct of Operations Order.

  9. Integrated Management Requirements mapping

    SciTech Connect (OSTI)

    Holmes, J.T.; Andrews, N.S.

    1992-06-01T23:59:59.000Z

    This document contains five appendices documenting how Sandia implemented the DOE Conduct of Operations (5480.19) and DOE Quality Assurance (5700.6C) orders. It provides a mapping of the Sandia integrated requirements to the specific requirements of each Order and a mapping to Sandia's approved program for implementing the Conduct of Operations Order.

  10. Introgression & mapping Fiber cell

    E-Print Network [OSTI]

    Germplasm Introgression Genomics & mapping Fiber cell initiation Radiation hybrid (RH) mapping and breeding. Research activities commonly include plant breeding, genetics, genomics, cytogenetics, molecular methods. (C, S) · Contribute uniquely to genomics and its relevance to genetic improvement (C,S) · Harness

  11. Geophysical Fault Mapping Using the Magnetic Method at Hickory Sandstone Aquifer, Llano Uplift, Texas

    E-Print Network [OSTI]

    Pereira, Antonio Do Nascimento

    2013-04-05T23:59:59.000Z

    A magnetic study over a 95 m x 150 m area of the Hickory sandstone aquifer in central Texas was carried out as part of multitechnique geophysical investigation that included ground penetrating radar (GPR), electromagnetic (EM), seismic...

  12. FEDMAP FY 2011 Projects 3D/4D Mapping of the San Andreas Fault Zone (Graymer)

    E-Print Network [OSTI]

    of surface and groundwater sustainability, land-use planning, ecosystem health, climate change, and sea level Basin and Range Province. Location: Nevada Strategic Direction: Energy and Minerals, Natural Hazards: Colorado, New Mexico Website: http://crustal.cr.usgs.gov/projects/rgb Strategic Direction: Water Issues

  13. Near-field microscopy maps semiconductors Near-field microscopy maps semiconductors

    E-Print Network [OSTI]

    technology is new, the combination represents a potentially important advance in high-resolution thermography

  14. NESTING MAPS OF GRASSMANNIANS C. DE CONCINI AND Z. REICHSTEIN

    E-Print Network [OSTI]

    Reichstein, Zinovy

    NESTING MAPS OF GRASSMANNIANS C. DE CONCINI AND Z. REICHSTEIN Abstract. Let F be a field and Gr ) is called nesting if l f(l) for every l Gr(i, Fn ). Glover, Homer and Stong showed that there are no continuous nesting maps Gr(i, Cn ) - Gr(j, Cn ) except for a few obvious ones. We prove a similar result

  15. Unit I-2 Linear Maps 1 Linear maps

    E-Print Network [OSTI]

    Birkett, Stephen

    Unit I-2 Linear Maps 1 Unit I-2 Linear maps Unit I-2 Linear Maps 2 Linear map · V & U are vector spaces over the same scalars · a function f: VU is a linear map if it preserves the vector space transformation [particularly when f: RnRm] ­ linear operator when f: V V [same v.s.] ­ linear mapping ­ linear

  16. Automated transmission line fault analysis using synchronized sampling at two ends

    SciTech Connect (OSTI)

    Kezunovic, M. [Texas A and M Univ., College Station, TX (United States)] [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)] [Lamar Univ., Beaumont, TX (United States)

    1996-02-01T23:59:59.000Z

    This paper introduces a new approach to fault analysis using synchronized sampling. A digital fault recorder with Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are implemented for a transmission line using synchronized samples from two ends of a line. This technique can be extremely fast, selective and accurate, providing fault analysis performance that can not easily be matched by other known techniques.

  17. Automated transmission line fault analysis using synchronized sampling at two ends

    SciTech Connect (OSTI)

    Kezunovic, M. [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)

    1995-12-31T23:59:59.000Z

    This paper introduces a new approach to fault analysis using synchronized sampling. A digital fault recorder with Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are implemented for a transmission line using synchronized samples from two ends of a line. This technique can be extremely fast, selective and accurate, providing fault analysis performance that can not easily be matched by other known techniques.

  18. arcing fault fires: Topics by E-print Network

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

    stacking faults at a production-rate of few gmin. A guideline for controlling the number of layers of such FLG has also been suggested. Karmakar, Soumen; Lalla, Niranjan P;...

  19. assembly line fault: Topics by E-print Network

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

    of fault data to verify that all elements of the protection system Siegel, Mel 190 Bucket brigades on in-tree assembly networks John J. Bartholdi III a,*, Donald D. Eisenstein...

  20. Microgrid Fault Protection Based on Symmetrical and Differential Current Components

    E-Print Network [OSTI]

    Microgrid Fault Protection Based on Symmetrical and Differential Current Components Prepared.........................................................................................8 2. AEP CERTS MICROGRID .........................................................................9 ........................................................................67 #12;3 Index of Figures Figure 1: Schematic representation of the AEP CERTS microgrid

  1. Characteristics of Wind Turbines Under Normal and Fault Conditions: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Butterfield, C. P.; Parsons, B.; Ellis, A.

    2007-02-01T23:59:59.000Z

    This paper investigates the characteristics of a variable-speed wind turbine connected to a stiff or weak grid under normal and fault conditions and the role of reactive power compensation.

  2. Faults as potential hydrocarbon barriers, Arroyo Grande, California

    E-Print Network [OSTI]

    Switek, Daniel Paul

    1994-01-01T23:59:59.000Z

    Faulting in a sandstone introduces properties which are different from the country rock. Previous work has shown that these new properties can significantly impede the flow of hydrocarbons through the country rock. This thesis seeks to analyze...

  3. An information model for inter-organizational fault Patricia Marcu

    E-Print Network [OSTI]

    in the IT Infrastructure Library (ITIL) [2] and related frameworks in the area of IT service management (ITSM). But since ITIL and the related ITSM frameworks do not consider specific aspects of inter- organizational (fault

  4. Understanding Fault Characteristics And Sediment Depth For Geothermal...

    Open Energy Info (EERE)

    Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to...

  5. Non-intrusive fault detection in reciprocating compressors

    E-Print Network [OSTI]

    Schantz, Christopher James

    2011-01-01T23:59:59.000Z

    This thesis presents a set of techniques for non-intrusive sensing and fault detection in reciprocating compressors driven by induction motors. The procedures developed here are "non-intrusive" because they rely only on ...

  6. CAPRI : a common architecture for distributed probabilistic Internet fault diagnosis

    E-Print Network [OSTI]

    Lee, George J. (George Janbing), 1979-

    2007-01-01T23:59:59.000Z

    This thesis presents a new approach to root cause localization and fault diagnosis in the Internet based on a Common Architecture for Probabilistic Reasoning in the Internet (CAPRI) in which distributed, heterogeneous ...

  7. CAPRI: A Common Architecture for Distributed Probabilistic Internet Fault Diagnosis

    E-Print Network [OSTI]

    Lee, George J.

    2007-06-04T23:59:59.000Z

    This thesis presents a new approach to root cause localization and fault diagnosis in the Internet based on a Common Architecture for Probabilistic Reasoning in the Internet (CAPRI) in which distributed, heterogeneous ...

  8. Lossless fault-tolerant data structures with additive overhead

    E-Print Network [OSTI]

    Christiano, Paul F.

    We develop the first dynamic data structures that tolerate ? memory faults, lose no data, and incur only an O(? ) additive overhead in overall space and time per operation. We obtain such data structures for arrays, linked ...

  9. anatolian fault zone: Topics by E-print Network

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

    across the Mudurnu segment of the North Anatolian Fault Zone (NAFZ) in northwestern Turkey Ben-Zion, Yehuda 2 Velocity contrast across the 1944 rupture zone of the North...

  10. Identifying Efficiency Degrading Faults in Split Air Conditioning Systems

    E-Print Network [OSTI]

    Terrill, T. J.; Brown, M. L.; Cheyne, R. W. Jr.; Cousins, A. J.; Daniels, B. P.; Erb, K. L.; Garcia, P. A.; Leutermann, M. J.; Nel, A. J.; Robert, C. L.; Widger, S. B.; Williams, A. G.; Rasmussen, B. P.

    2013-01-01T23:59:59.000Z

    Studies estimate that as much as 50% of packaged air conditioning systems operate in faulty conditions that degrade system efficiency. Common faults include: under- and over-charged systems (too much or too little refrigerant), faulty expansions...

  11. The northwest extension of the Meers Fault in southwestern Oklahoma

    E-Print Network [OSTI]

    Cetin, Hasan

    1991-01-01T23:59:59.000Z

    THE NORTHWEST EXTENSION OF THE MEERS FAULT IN SOUTIRVESTERN OKLAHOMA A Thesis by HASAN CETIN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... May 1991 Major Subject: Geology THE NORTHWEST EXTENSION OF THE MEERS FAULT IN SOUTHWESTERN OKLAHOMA A Thesis by HASAN CETIN Approved as to style and content by: Norman R. ford (Chair of ommittee) Chr stopher C. Mathewson (Member) ne A...

  12. Two Similarity Measure Approaches to Whole Building Fault Diagnosis

    E-Print Network [OSTI]

    Lin, G.; Claridge, D.

    2012-01-01T23:59:59.000Z

    consumption in buildings using similarity measures. The method is referred to as the cosine similarity method if cosine similarity is adopted and is referred to as the Euclidean distance similarity method if Euclidean distance similarity is implemented.... Fig. 1 Block diagram for diagnosing abnormal energy consumption Step 1: Reference Control Change Library Determination Whole building fault diagnosis is different from component level fault diagnosis. It can only give a general clue, for example...

  13. The application of satellite time references to HVDC fault location

    SciTech Connect (OSTI)

    Dewe, M.B.; Sankar, S.; Arrillaga, J. (Univ. of Canterbury, Christchurch (New Zealand))

    1993-07-01T23:59:59.000Z

    An HVdc fault location scheme is described which relies on very precise detection of the time of arrival of fault created surges at both ends of the line. Such detection is achieved by a very accurate data acquisition and processing system combined with the time reference signals provided by a global positioning system receiver. Extensive digital simulation is carried out to determine the voltage and current waveforms, to identify the main sources of error and suggest possible compensation techniques.

  14. Occupancy Based Fault Detection on Building Level - a Feasibility Study

    E-Print Network [OSTI]

    Tuip, B.; Houten, M.; Trcka, M.; Hensen, M.

    2010-01-01T23:59:59.000Z

    -going commissioning and fault detection and diagnostics (FDD) has been performed to improve the current situation of building problems by comparing measured building performance with design predictions [Portland 2003]. For fault detection, different methods... conference on building commissioning, Portland Energy Conservation. Portland. 2003. Methods for automated and continuous commissioning of building systems. US department of commerce, Portland energy conservation inc. Schijndel, A.W.M. van, 2008...

  15. Hyperspectral Mineral Mapping For Geothermal Exploration On The...

    Open Energy Info (EERE)

    and X-ray diffraction analyses of samples collected in the field. We are in the process of producing and validating mineral maps that will be used to narrow the scope of...

  16. Maps of Selected State Subdivisions

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

    Map 8: Eastern Planning Area, Gulf of Mexico Map 1: Alaska AK 50 - North Onshore and Offshore AK 10 - South Onshore AK 05 - South State Offshore AK 00 - South Federal Offshore Map...

  17. Dynamics of acyclic interval maps

    E-Print Network [OSTI]

    Hirsch, Morris W

    2009-01-01T23:59:59.000Z

    Vol. 6 (2009) Dynamics of acyclic interval maps [16] D.orbits and bifurcation of maps of the interval. SIAM J.Dynamics of acyclic interval maps Morris W. Hirsch He who

  18. Microcomputer applications of, and modifications to, the modular fault trees

    SciTech Connect (OSTI)

    Zimmerman, T.L.; Graves, N.L.; Payne, A.C. Jr.; Whitehead, D.W. [Sandia National Labs., Albuquerque, NM (United States)] [Sandia National Labs., Albuquerque, NM (United States)

    1994-10-01T23:59:59.000Z

    The LaSalle Probabilistic Risk Assessment was the first major application of the modular logic fault trees after the IREP program. In the process of performing the analysis, many errors were discovered in the fault tree modules that led to difficulties in combining the modules to form the final system fault trees. These errors are corrected in the revised modules listed in this report. In addition, the application of the modules in terms of editing them and forming them into the system fault trees was inefficient. Originally, the editing had to be done line by line and no error checking was performed by the computer. This led to many typos and other logic errors in the construction of the modular fault tree files. Two programs were written to help alleviate this problem: (1) MODEDIT - This program allows an operator to retrieve a file for editing, edit the file for the plant specific application, perform some general error checking while the file is being modified, and store the file for later use, and (2) INDEX - This program checks that the modules that are supposed to form one fault tree all link up appropriately before the files are,loaded onto the mainframe computer. Lastly, the modules were not designed for relay type logic common in BWR designs but for solid state type logic. Some additional modules were defined for modeling relay logic, and an explanation and example of their use are included in this report.

  19. Fractional Standard Map

    E-Print Network [OSTI]

    Mark Edelman; Vasily E. Tarasov

    2009-11-24T23:59:59.000Z

    Properties of the phase space of the standard map with memory are investigated. This map was obtained from a kicked fractional differential equation. Depending on the value of the parameter of the map and the fractional order of the derivative in the original differential equation this nonlinear dynamical system demonstrates attractors (fixed points, stables periodic trajectories, slow converging and slow diverging trajectories, ballistic trajectories, and fractal-like structures) and/or chaotic trajectories. At least one type of fractal-like sticky attractors in the chaotic sea was observed.

  20. Experimental wrench faulting at confining pressure

    E-Print Network [OSTI]

    Bartlett, Wendy Louise

    2012-06-07T23:59:59.000Z

    -peak, peak, post-peak, pre-residual, and residual shear force (modified from Tchalenko, 1970, Fig. 3) . . . . . . . . . . . . . . . . . . . . . . . . . 14 Example of shear stress/shear d1splacement curve for spec1men 978, deformed at 50 MPa confin1ng... thin sect1ons of 0. 5 cm Indiana 11mestone veneer, deformed at 50 MPa confining pres- sure, and taken to 0. 54 cm shear d1splacement (spe- cimen 978). . . . . . . . . . . . . . . . . - . - . ~ 26 29 32 35 10. Shear zone fracture map sketched...

  1. The San Andreas Fault System Paul Withers Wallace RE, The San Andreas Fault System, California, USGS Professional Paper 1515,

    E-Print Network [OSTI]

    Withers, Paul

    mainland Mexico. The San Andreas fault is commonly referred to as the boundary between the Pacific is correlated with the local geological setting. CO2 lubrication, #12;increased pore pressure, and decreased

  2. Rupture Dynamics of Strike-Slip Faults with Stepovers: From Conceptually Simplified to Realistically Complex Fault Systems

    E-Print Network [OSTI]

    Liu, Zaifeng

    2014-05-05T23:59:59.000Z

    This dissertation investigates the interaction of model II in-plane dynamic rupture with a geometrical discontinuity along the fault strike: stepover. One goal is to understand how large the stepover width must be to stop the dynamic rupture...

  3. Realistic fault modeling and quality test generation of combined delay faults

    E-Print Network [OSTI]

    Thadhlani, Ajaykumar A

    2001-01-01T23:59:59.000Z

    . Summary . . Page . . Vi . Vii . 1X . I 2 . 5 . 5 . 6 . 6 . . . 14 . 14 . 16 . 17 . 18 . 18 . 20 . 20 23 , 33 . 34 36 36 38 . . 44 53 53 2. Future Work . . . . . REFERENCES . VITA Page 54 55 LIST OF FIGURES Fig. 1. Fault... 24 Fig. 10. Fig. 11. Fig. 12. Fig. 13. Fig. 14. Fig. 15. Fig. 16. Fig. 17. Fig. 18. Fig. 19. Fig. 20. Fig. 21. Fig. 22. Fig. 23. Fig. 24. Fig. 25. Path generation algorithm. Example for graph theory . Propagation along longest path...

  4. Affine maps of density matrices

    E-Print Network [OSTI]

    Thomas F. Jordan

    2004-11-21T23:59:59.000Z

    For quantum systems described by finite matrices, linear and affine maps of matrices are shown to provide equivalent descriptions of evolution of density matrices for a subsystem caused by unitary Hamiltonian evolution in a larger system; an affine map can be replaced by a linear map, and a linear map can be replaced by an affine map. There may be significant advantage in using an affine map. The linear map is generally not completely positive, but the linear part of an equivalent affine map can be chosen to be completely positive and related in the simplest possible way to the unitary Hamiltonian evolution in the larger system.

  5. Abstract--A method for fault detection and isolation is proposed and applied to inverter faults in multi-phase drives. An

    E-Print Network [OSTI]

    Boyer, Edmond

    energy source, a five- leg inverter and a five-phase star-connected PMSM. It has to be noticed that all-magnet synchronous machine (PMSM) drive. The faults under consideration are: open-phase faults and open-switch faults

  6. Dating the Vinland Map

    ScienceCinema (OSTI)

    None

    2013-07-17T23:59:59.000Z

    Scientists from Brookhaven National Laboratory, the University of Arizona, and the Smithsonian Institution used carbon-dating technology to determine the age of a controversial parchment that might be the first-ever map of North America.

  7. Mapping healthcare information technology

    E-Print Network [OSTI]

    Crawford, William Charles Richards

    2010-01-01T23:59:59.000Z

    In this thesis I have developed a map of Healthcare Information Technology applications used in the United States for care delivery, healthcare enterprise management, clinical support, research and patient engagement. No ...

  8. Surveying & Mapping Surveying

    E-Print Network [OSTI]

    Thomas, Andrew

    in many states. Tuition Discount Residents from New Hampshire, Vermont, Massachusetts services involve locating boundaries, land development, and mapping. Most careers. Employers Graduates work for both private firms and public agencies. The Bureau

  9. Fatty Acid Carcass Mapping

    E-Print Network [OSTI]

    Turk, Stacey N.

    2010-01-14T23:59:59.000Z

    FATTY ACID CARCASS MAPPING A Thesis by STACEY NICOLE TURK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 2008... Major Subject: Animal Science FATTY ACID CARCASS MAPPING A Thesis by STACEY NICOLE TURK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...

  10. Wind Resource Maps (Postcard)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01T23:59:59.000Z

    The U.S. Department of Energy's Wind Powering America initiative provides high-resolution wind maps and estimates of the wind resource potential that would be possible from development of the available windy land areas after excluding areas unlikely to be developed. This postcard is a marketing piece that stakeholders can provide to interested parties; it will guide them to Wind Powering America's online wind energy resource maps.

  11. Maps for currents and anomalies in noncommutative gauge theories

    E-Print Network [OSTI]

    Rabin Banerjee; Kuldeep Kumar

    2005-04-13T23:59:59.000Z

    We derive maps relating currents and their divergences in non-abelian U(N) noncommutative gauge theory with the corresponding expressions in the ordinary (commutative) description. For the U(1) theory, in the slowly-varying-field approximation, these maps are also seen to connect the star-gauge-covariant anomaly in the noncommutative theory with the standard Adler--Bell--Jackiw anomaly in the commutative version. For arbitrary fields, derivative corrections to the maps are explicitly computed up to O(\\theta^2).

  12. Diffusion Maps for Changing Data Diffusion Maps for Changing Data

    E-Print Network [OSTI]

    Hirn, Matthew

    Diffusion Maps for Changing Data Diffusion Maps for Changing Data Matthew J. Hirn Department;Diffusion Maps for Changing Data Collaborators Ronald Coifman (Yale University) Roy Lederman (Yale University) #12;Diffusion Maps for Changing Data How to compare images across sensors? Figure: Sokolov Mine

  13. Diffusion Maps for Changing Data Diffusion Maps for Changing Data

    E-Print Network [OSTI]

    Hirn, Matthew

    Diffusion Maps for Changing Data Diffusion Maps for Changing Data Matthew J. Hirn Department of Mathematics Yale University July 26, 2012 Bell Labs #12;Diffusion Maps for Changing Data Collaborators Joint work with Ronald Coifman and Roy Lederman. #12;Diffusion Maps for Changing Data Overview 1 High

  14. THE SCALE PROBLEM FOR OLD MAPS (and mental maps)

    E-Print Network [OSTI]

    Tobler, Waldo

    THE SCALE PROBLEM FOR OLD MAPS (and mental maps) Waldo Tobler From the theory of cartography we know that the instantaneous scale at a point on any map is always represented by the equation: dS2 /ds2 = g cos2 + 2g cos sin + g sin2 . This shows that the scale on a map is generally different in all

  15. Diffusion Maps for Changing Data Diffusion Maps for Changing Data

    E-Print Network [OSTI]

    Hirn, Matthew

    Diffusion Maps for Changing Data Diffusion Maps for Changing Data Matthew J. Hirn Department of Mathematics Yale University November 29, 2012 Kansas State University Colloquium #12;Diffusion Maps;Diffusion Maps for Changing Data How to compare images across sensors? Figure: Sokolov Mine in 2009 and 2010

  16. Diffusion Maps for Changing Data Diffusion Maps for Changing Data

    E-Print Network [OSTI]

    Hirn, Matthew

    Diffusion Maps for Changing Data Diffusion Maps for Changing Data Matthew J. Hirn Department in Honor of the 70th Birthday of David R. Larson #12;Diffusion Maps for Changing Data Collaborators Joint work with Ronald Coifman and Roy Lederman. #12;Diffusion Maps for Changing Data High Dimensional Data

  17. Diffusion Maps for Changing Data Diffusion Maps for Changing Data

    E-Print Network [OSTI]

    Hirn, Matthew

    Diffusion Maps for Changing Data Diffusion Maps for Changing Data Matthew J. Hirn September 3, 2013 #12;Diffusion Maps for Changing Data Collaborators Simon Adar, Tel Aviv University Eyal Ben Dor, Tel, Clarkson University Yoel Shkolnisky, Tel Aviv University #12;Diffusion Maps for Changing Data Heat equation

  18. Gravity Survey of the Carson Sink - Data and Maps

    SciTech Connect (OSTI)

    Faulds, James E.

    2013-12-31T23:59:59.000Z

    A detailed gravity survey was carried out for the entire Carson Sink in western Nevada (Figure 1) through a subcontract to Zonge Engineering, Inc. The Carson Sink is a large composite basin containing three known, blind high?temperature geothermal systems (Fallon Airbase, Stillwater, and Soda Lake). This area was chosen for a detailed gravity survey in order to characterize the gravity signature of the known geothermal systems and to identify other potential blind systems based on the structural setting indicated by the gravity data. Data: Data were acquired at approximately 400, 800, and 1600 meter intervals for a total of 1,243 stations. The project location and station location points are presented in Figure 14. The station distribution for this survey was designed to complete regional gravity coverage in the Carson Sink area without duplication of available public and private gravity coverage. Gravity data were acquired using a Scintrex CG?5 gravimeter and a LaCoste and Romberg (L&R) Model?G gravimeter. The CG?5 gravity meter has a reading resolution of 0.001 milligals and a typical repeatability of less than 0.005 milligals. The L&R gravity meter has a reading resolution of 0.01 milligals and a typical repeatability of 0.02 milligals. The basic processing of gravimeter readings to calculate through to the Complete Bouguer Anomaly was made using the Gravity and Terrain Correction software version 7.1 for Oasis Montaj by Geosoft LTD. Results: The gravity survey of the Carson Sink yielded the following products. Project location and station location map (Figure 14). Complete Bouguer Anomaly @ 2.67 gm/cc reduction density. Gravity Complete Bouguer Anomaly at 2.50 g/cc Contour Map (Figure 15). Gravity Horizontal Gradient Magnitude Shaded Color Contour Map. Gravity 1st Vertical Derivative Color Contour Map. Interpreted Depth to Mesozoic Basement (Figure 16), incorporating drill?hole intercept values. Preliminary Interpretation of Results: The Carson Sink is a complex composite basin with several major depocenters (Figures 15 and 16). Major depocenters are present in the south?central, east?central, and northeastern parts of the basin. The distribution of gravity anomalies suggests a complex pattern of faulting in the subsurface of the basin, with many fault terminations, step?overs, and accommodation zones. The pattern of faulting implies that other, previously undiscovered blind geothermal systems are likely in the Carson Sink. The gravity survey was completed near the end of this project. Thus, more thorough analysis of the data and potential locations of blind geothermal systems is planned for future work.

  19. Lab 4: Raster Data & Map Calculations C W G WilliCamp W.G. Williams

    E-Print Network [OSTI]

    Ramsey, R. Douglas

    Some interesting properties: New_Grid = A + B A Map Algebra: Continuous Fields Analysis represented leads to distinct patterns in the output map The pattern of these combinations is of interest B New_Grid = A + B New_Grid = A * B Map Algebra: Sim

  20. Methods for enhancing mapping of thermal fronts in oil recovery

    DOE Patents [OSTI]

    Lee, David O. (Albuquerque, NM); Montoya, Paul C. (Albuquerque, NM); Wayland, Jr., James R. (Albuquerque, NM)

    1987-01-01T23:59:59.000Z

    A method for enhancing the resistivity contrasts of a thermal front in an oil recovery production field as measured by the CSAMT technique is disclosed. This method includes the steps of: (a) preparing a CSAMT-determined topological resistivity map of the production field; (b) introducing a solution of a dopant material into the production field at a concentration effective to alter the resistivity associated with the thermal front; said dopant material having a high cation exchange capacity which might be selected from the group consisting of montmorillonite, illite, and chlorite clays; said material being soluble in the connate water of the production field; (c) preparing a CSAMT-determined topological resistivity map of the production field while said dopant material is moving therethrough; and (d) mathematically comparing the maps from step (a) and step (c) to determine the location of the thermal front. This method is effective with the steam flood, fire flood and water flood techniques.

  1. Methods for enhancing mapping of thermal fronts in oil recovery

    DOE Patents [OSTI]

    Lee, D.O.; Montoya, P.C.; Wayland, J.R. Jr.

    1984-03-30T23:59:59.000Z

    A method for enhancing the resistivity contrasts of a thermal front in an oil recovery production field as measured by the controlled source audio frequency magnetotelluric (CSAMT) technique is disclosed. This method includes the steps of: (1) preparing a CSAMT-determined topological resistivity map of the production field; (2) introducing a solution of a dopant material into the production field at a concentration effective to alter the resistivity associated with the thermal front; said dopant material having a high cation exchange capacity which might be selected from the group consisting of montmorillonite, illite, and chlorite clays; said material being soluble in the conate water of the production field; (3) preparing a CSAMT-determined topological resistivity map of the production field while said dopant material is moving therethrough; and (4) mathematically comparing the maps from step (1) and step (3) to determine the location of the thermal front. This method is effective with the steam flood, fire flood and water flood techniques.

  2. Accident Fault Trees for Defense Waste Processing Facility

    SciTech Connect (OSTI)

    Sarrack, A.G.

    1999-06-22T23:59:59.000Z

    The purpose of this report is to document fault tree analyses which have been completed for the Defense Waste Processing Facility (DWPF) safety analysis. Logic models for equipment failures and human error combinations that could lead to flammable gas explosions in various process tanks, or failure of critical support systems were developed for internal initiating events and for earthquakes. These fault trees provide frequency estimates for support systems failures and accidents that could lead to radioactive and hazardous chemical releases both on-site and off-site. Top event frequency results from these fault trees will be used in further APET analyses to calculate accident risk associated with DWPF facility operations. This report lists and explains important underlying assumptions, provides references for failure data sources, and briefly describes the fault tree method used. Specific commitments from DWPF to provide new procedural/administrative controls or system design changes are listed in the ''Facility Commitments'' section. The purpose of the ''Assumptions'' section is to clarify the basis for fault tree modeling, and is not necessarily a list of items required to be protected by Technical Safety Requirements (TSRs).

  3. 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.

  4. Maps and inverse maps in open quantum dynamics

    SciTech Connect (OSTI)

    Jordan, Thomas F., E-mail: tjordan@d.umn.ed [Physics Department, University of Minnesota, Duluth, MN 55812 (United States)

    2010-10-15T23:59:59.000Z

    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 cannot have an inverse that is obtained from any dynamics described by any unitary operator for any states of a larger system.

  5. Mapping the Nanoscale Landscape

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the Nanoscale Landscape Print For the first time,Mapping the

  6. Mapping the Nanoscale Landscape

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the Nanoscale Landscape Print For the first time,Mapping

  7. Site Map | DOEpatents

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted forHighlightsSeminarsSiliconSite Map TUNL pdf's | FAS pdf's |Site Map

  8. Site Monitoring Area Maps

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted forHighlightsSeminarsSiliconSite Map TUNL pdf's | FAS pdf's |SiteMaps

  9. E-Print Network 3.0 - active fault system Sample Search Results

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

    Summary: -8141(95)00105-0 Experimental modeling of extensional fault systems by use of plaster HAAKON FOSSEN Statoil, N-5020 Bergen... -scale structures in relation to larger fault...

  10. Initiation propagation and termination of elastodynamic ruptures associated with segmentation of faults and shaking

    E-Print Network [OSTI]

    Shaw, Bruce E.

    Initiation propagation and termination of elastodynamic ruptures associated with segmentation the initiation, propagation, and termination of ruptures and their relationship to fault geometry and shaking of terminations near fault ends; and persistent propagation directivity effects. Taking advantage of long

  11. E-Print Network 3.0 - active fault isolation Sample Search Results

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

    and those exhibited by much smaller (L 0.15-2 km) more isolated faults... Post-yield fracture mechanics models for the growth of an isolated fault predict a linear...

  12. E-Print Network 3.0 - analog fault simulation Sample Search Results

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

    Sciences 65 Channel flow and the development of parallel-dipping normal faults Thorsten J. Nagel1 Summary: -dipping normal faults we carried out a series of numerical experiments...

  13. Characterization of the structure of faults in the Eocene Carrizo Formation near Gause, Milam County, Texas

    E-Print Network [OSTI]

    Yilmaz, Ramazan

    2012-06-07T23:59:59.000Z

    -scale graben accommodating NW-SE extension. The Carrizo Fm. consists primarily of friable to weakly lithified quartz sandstones with several horizons with interbedded siltstones and shales. Five faults and fault zones occur in the quarry with displacements...

  14. The dynamics of oceanic transform faults : constraints from geophysical, geochemical, and geodynamical modeling

    E-Print Network [OSTI]

    Gregg, Patricia Michelle Marie

    2008-01-01T23:59:59.000Z

    Segmentation and crustal accretion at oceanic transform fault systems are investigated through a combination of geophysical data analysis and geodynamical and geochemical modeling. Chapter 1 examines the effect of fault ...

  15. Fault Current Issues for Market Driven Power Systems with Distributed Generation

    E-Print Network [OSTI]

    1 Fault Current Issues for Market Driven Power Systems with Distributed Generation Natthaphob of installing distributed generation (DG) to electric power systems. The proliferation of new generators creates Terms--Distributed / dispersed generation, power distri- bution, power system protection, fault

  16. E-Print Network 3.0 - automatic fault tree Sample Search Results

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

    Search Sample search results for: automatic fault tree Page: << < 1 2 3 4 5 > >> 1 Computer diagnosis systems grounded on hand-crafted fault trees are wide-spread in industrial...

  17. Slip on ridge transform faults : insights from earthquakes and laboratory experiments

    E-Print Network [OSTI]

    Boettcher, Margaret S

    2005-01-01T23:59:59.000Z

    The relatively simple tectonic environment of mid-ocean ridge transform fault (RTF) seismicity provides a unique opportunity for investigation of earthquake and faulting processes. We develop a scaling model that is complete ...

  18. A methodology for experimentally verifying simulation models for distribution transformer internal faults

    E-Print Network [OSTI]

    Palmer-Buckle, Peter

    1999-01-01T23:59:59.000Z

    Internal winding faults comprise 70-80% of modem transformer breakdown. In this era of deregulation, this phenomenon is likely to increase since loading transformers to their optimum capacity is becoming normal practice. These internal faults result...

  19. Power system fault analysis based on intelligent techniques and intelligent electronic device data

    E-Print Network [OSTI]

    Luo, Xu

    2007-09-17T23:59:59.000Z

    This dissertation has focused on automated power system fault analysis. New contributions to fault section estimation, protection system performance evaluation and power system/protection system interactive simulation have been achieved. Intelligent...

  20. Development of a methodology to discriminate incipient insulator faults from distribution system load

    E-Print Network [OSTI]

    Richards, Christopher Scott

    2000-01-01T23:59:59.000Z

    of incipient insulator faults 4. Determining characteristics most likely to discriminate incipient insulator faults from distribution system load current From this work, the aggregate of the non-harmonic components and the high frequency energy of the leakage...

  1. Analysis of electrical signatures in synchronous generators characterized by bearing faults

    E-Print Network [OSTI]

    Choi, Jae-Won

    2009-05-15T23:59:59.000Z

    Synchronous generators play a vital role in power systems. One of the major mechanical faults in synchronous generators is related to bearings. The popular vibration analysis method has been utilized to detect bearing faults for years. However...

  2. Paleoearthquakes of the past 30,000 years along the North Tehran Fault (Iran)

    E-Print Network [OSTI]

    Paleoearthquakes of the past 30,000 years along the North Tehran Fault (Iran) J.-F. Ritz,1 H. Ghorashi, and A. Saidi (2012), Paleoearthquakes of the past 30,000 years along the North Tehran Fault (Iran

  3. Thermo-and hydro-mechanical processes along faults during rapid slip

    E-Print Network [OSTI]

    Dunham, Eric M.

    Thermo- and hydro-mechanical processes along faults during rapid slip James R. Rice & Eric M micro-contacts, and (2) Thermal pressurization of fault-zone pore fluid. Both have characteristics which

  4. Tarmat behavior calculated for reservoir with sealing fault

    SciTech Connect (OSTI)

    Osman, M.E.S.

    1986-08-01T23:59:59.000Z

    The Minagish Oolite oil reservoir in Kuwait is one of many Middle East reservoirs characterized by the presence of a tarmat (heavy to tar-like crude) at the oil-water contact. Since a waterflood project is planned for the Minagish Oolite, which contains a radial pattern of faults, a study was made to consider tarmat behavior upon water injection below it when the injection well is located near a sealing fault. The study resulted in a technique to predict the time of tarmat breakdown, response time at the nearest observation well, and differential pressure at the tarmat anywhere in the reservoir.

  5. CAERs's mine mapping program and Kentucky's mine mapping initiative

    SciTech Connect (OSTI)

    Hiett, J. [University of Kentucky Center for Applied Energy Research, Lexington, KY (United States). Mine Map Repository and Mine Map Information Systems

    2007-07-01T23:59:59.000Z

    Since 1884 the Kentucky Department of Mines and Minerals (KDMM now OMSL) has had a mine mapping function as it relates to mine safety. The CAER's Mine Mapping Program has provided this service to that agency since 1972. The program has been in continuous operation under the current staff and management over that period. Functions include operating the Mine Map Repository/Mine Map Information Center of the OMSL; and receiving and processing all annual coal mine license maps, old maps, and related data. The Kentucky Mine Mapping Initiative's goal is to ensure that every underground and surface mine map in Kentucky is located, digitized and online. The Kentucky mine mapping website plays a vital role in the safety of Kentuckians. The purpose of the web service is to make available electronic maps of mined out areas and approximately 32,000 engineering drawings of operating or closed mines that are located in the state. Future phases of the project will include the archival scanning of all submitted mine maps; the recovery from outside sources of maps that were destroyed in a 1948 fire; and the development of further technology to process maps and related data. 7 photos.

  6. Sensor for detecting changes in magnetic fields

    DOE Patents [OSTI]

    Praeg, W.F.

    1980-02-26T23:59:59.000Z

    A sensor is described for detecting changes in the magnetic field of the equilibrium-field coil of a Tokamak plasma device that comprises a pair of bifilar wires disposed circumferentially, one inside and one outside the equilibrium-field coil. Each is shorted at one end. The difference between the voltages detected at the other ends of the bifilar wires provides a measure of changing flux in the equilibrium-field coil. This difference can be used to detect faults in the coil in time to take action to protect the coil.

  7. IEEE TRANSACTIONS ON POWER ELECTRONICS 1 A Fault-Tolerant Switching Scheme for an Isolated

    E-Print Network [OSTI]

    Mazumder, Sudip K.

    a model- reference adaptive system-based fault diagnosis algorithm for a VSI used as a PMSM drive system

  8. Servant dictionary battery, map

    E-Print Network [OSTI]

    Rosenthal, Jeffrey S.

    Attic *** book teachest Servant dictionary scarf [11] Winery demijohn battery, map AuntLair X Cupboard1 wireless Potting gloves aunt[3] Storage dumbwaiter wrench OldFurn parcel, med whistle Over] EastAnnex battery[4] Cupboard2 [2] mask DeadEnd rucksack AlisonWriting [16] TinyBalcony [17] gold key

  9. battery, map parcel, med

    E-Print Network [OSTI]

    Rosenthal, Jeffrey S.

    Attic *** book teachest Servant dictionary scarf [11] Winery demijohn battery, map AuntLair X Cupboard1 wireless Potting gloves aunt[3] Storage dumbwaiter wrench OldFurn parcel, med whistle Over] EastAnnex battery[4] Cupboard2 [2] mask DeadEnd rucksack AlisonWriting [16] TinyBalcony [17] gold key

  10. PARKING MAP Sales Office

    E-Print Network [OSTI]

    Wilmers, Chris

    PARKING MAP BayDr. Main Entrance Parking Sales Office Main Entrance Kiosk East Remote Lot, B, C111, MC, N, NC, , Medical M 2hr 112 Core West Structure A, B, EV, MC, N, NC, , Medical P 2hr 113

  11. The World Stress Map - A Freely Accessible Tool For Geohazard Assessment

    SciTech Connect (OSTI)

    Mueller, Birgit; Heidbach, Oliver; Tingay, Mark [World Stress Map Project of the Heidelberg Academy of Sciences and Humanities, Geophysical Institute, Karlsruhe University, Hertzstrasse 16, 76187 Karlsruhe (Germany)

    2006-03-23T23:59:59.000Z

    The World Stress Map (WSM) database contains over 16,000 indicators on contemporary crustal tectonic stress and provides an essential parameter for geohazard assessment. This paper focuses on the importance of database accessibility for geohazard assessment and presents the basic concepts and availability of the WSM. The WSM can be applied to several key aspects of geohazard assessment, in particular the mapping of stress patterns and places of stress concentration for improved delineation of zones of seismic hazard. Furthermore, contemporary tectonic stresses can be used in combination with numerical modeling to identify faults or sections of fault systems with high failure potential and can help to predict the likely type of fault reactivation. This approach is especially valuable for assessing the likelihood of strong and rare seismic events for which probabilistic hazard assessment will fail and physically based methodologies are required. Herein, we use the Caspian-Caucasian region as an example to apply WSM data for geohazard assessment. The Caspian-Caucasian area is characterized by the occurrence of a number of stress related geohazards on different spatial scales, in particular crustal earthquakes, seismically triggered landslides and mud volcanism.

  12. Insights From Laboratory Experiments On Simulated Faults With Application To Fracture Evolution In Geothermal Systems

    SciTech Connect (OSTI)

    Stephen L. Karner, Ph.D

    2006-06-01T23:59:59.000Z

    Laboratory experiments provide a wealth of information related to mechanics of fracture initiation, fracture propagation processes, factors influencing fault strength, and spatio-temporal evolution of fracture properties. Much of the existing literature reports on laboratory studies involving a coupling of thermal, hydraulic, mechanical, and/or chemical processes. As these processes operate within subsurface environments exploited for their energy resource, laboratory results provide insights into factors influencing the mechanical and hydraulic properties of geothermal systems. I report on laboratory observations of strength and fluid transport properties during deformation of simulated faults. The results show systematic trends that vary with stress state, deformation rate, thermal conditions, fluid content, and rock composition. When related to geophysical and geologic measurements obtained from engineered geothermal systems (e.g. microseismicity, wellbore studies, tracer analysis), laboratory results provide a means by which the evolving thermal reservoir can be interpreted in terms of physico-chemical processes. For example, estimates of energy release and microearthquake locations from seismic moment tensor analysis can be related to strength variations observed from friction experiments. Such correlations between laboratory and field data allow for better interpretations about the evolving mechanical and fluid transport properties in the geothermal reservoir ultimately leading to improvements in managing the resource.

  13. State of the art analysis of online fault location on AC cables in underground transmission systems

    E-Print Network [OSTI]

    Bak, Claus Leth

    on transmission level fault location methods have been focused on overhead lines. Because of the very different- termine the fault location. Because only one end meas- urements are used, the algorithm is derived usingState of the art analysis of online fault location on AC cables in underground transmission systems

  14. RELIABILITY ANALYSIS IN A FAULT TOLERANT CONTROL STRATEGY DEDICATED TO ACTIVE POWER FILTER

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    RELIABILITY ANALYSIS IN A FAULT TOLERANT CONTROL STRATEGY DEDICATED TO ACTIVE POWER FILTER P. WEBER on reliability analysis dedicated to an active power filter. Once a fault has been detected and isolated, all reliability indicate the optimal structure. Keywords: Fault Tolerant Control, System Reliability, Active power

  15. Dynamic rupture through a branched fault2 configuration at Yucca Mountain and resulting3

    E-Print Network [OSTI]

    Dmowska, Renata

    Dynamic rupture through a branched fault2 configuration at Yucca Mountain and resulting3 ground analyses. This is motivated by the normal faults in the vicinity10 of Yucca Mountain, NV, a potential site fault12 located approximately 1 km west of the crest of Yucca Mountain, is the13 most active

  16. Bearing Fault Detection in DFIG-Based Wind Turbines Using the First Intrinsic Mode Function

    E-Print Network [OSTI]

    Boyer, Edmond

    Bearing Fault Detection in DFIG-Based Wind Turbines Using the First Intrinsic Mode Function Y for bearing fault detection in DFIG-based wind turbines. The proposed method uses the first Intrinsic Mode Terms--Wind turbine, Doubly Fed Induction Generator (DFIG), fault detection, bearings, signal processing

  17. IPR: In-Place Reconfiguration for FPGA Fault Tolerance and Rupak Majumdar2

    E-Print Network [OSTI]

    He, Lei

    IPR: In-Place Reconfiguration for FPGA Fault Tolerance Zhe Feng1 , Yu Hu1 , Lei He1 and Rupak Angeles ABSTRACT We describe In-Place Reconfiguration (IPR) for LUT-based FPGAs, an algorithm the propagation of faults seen at a pair of comple- mentary inputs. Based on IPR, we develop a fault

  18. Performance of Graceful Degradation for Cache Faults Hyunjin Lee Sangyeun Cho Bruce R. Childers

    E-Print Network [OSTI]

    Cho, Sangyeun

    Performance of Graceful Degradation for Cache Faults Hyunjin Lee Sangyeun Cho Bruce R. Childers to thermal hot spots) and may man- ifest themselves as operational faults at the micro- Bruce Childers that is dependent on the fault and the frequency of access to an address that would normally be held in the disabled

  19. What about vulnerability to a fault attack of the Miller algorithm during an

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    What about vulnerability to a fault attack of the Miller algorithm during an Identity Based is to analyse the weakness of the Miller algorithm when it undergoes a fault attack. We prove that the Miller algorithm is vulnerable to a fault attack which is valid in all coordinate systems, through the resolution

  20. What About Vulnerability to a Fault Attack of the Miller's Algorithm During an

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    What About Vulnerability to a Fault Attack of the Miller's Algorithm During an Identity Based of this article is to analyse the weakness of the Miller's algorithm when it undergoes a fault attack. We prove that the Miller's algorithm is vulnerable to a fault attack which is valid in all coordinate systems, through

  1. Shallow soil CO2 flow along the San Andreas and Calaveras Faults, California

    E-Print Network [OSTI]

    Hilley, George

    Shallow soil CO2 flow along the San Andreas and Calaveras Faults, California J. L. Lewicki,1,2 W. C soil CO2 survey along the San Andreas fault (SAF) in Parkfield, and the Calaveras fault (CF) in Hollister, California, in the context of spatial and temporal variability, origin, and transport of CO2

  2. A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS

    E-Print Network [OSTI]

    1 A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS T. I describes a control scheme with fault detection capabilities suitable for application to HVAC systems as a reference of correct operation. Faults that occur in the HVAC system under control cause the PI

  3. Yield Modeling and Analysis of a Clockless Asynchronous Wave Pipeline with Pulse Faults

    E-Print Network [OSTI]

    Ayers, Joseph

    Yield Modeling and Analysis of a Clockless Asynchronous Wave Pipeline with Pulse Faults T. Feng fault model and its modeling and analysis methods in a clockless asynchronous wave pipeline fault rate model for establishing a sound theoretical foundation for clockless wave pipeline design

  4. Acoustic Emission, Cylinder Pressure and Vibration: A Multisensor Approach to Robust Fault Diagnosis \\Lambda

    E-Print Network [OSTI]

    Sharkey, Amanda

    of a diesel engine and 4 fault conditions, Artificial Neural Nets based on data from any one of these three and challenging task for Artificial Neural Nets (ANNs) is the on­line fault dia­ gnosis of a diesel engine. One way of meeting this challenge is to physically induce faults in a diesel engine, to collect data

  5. Mineralogical characterization of protolith and fault rocks from the SAFOD Main Hole

    E-Print Network [OSTI]

    Mineralogical characterization of protolith and fault rocks from the SAFOD Main Hole John G. Solum influence is not yet fully known. Faults containing these mineralogical phases are prime candidates), Mineralogical characterization of protolith and fault rocks from the SAFOD Main Hole, Geophys. Res. Lett., 33, L

  6. Speed Map for Autonomous Rovers over Rough Terrain

    E-Print Network [OSTI]

    Loh, Jonathan Edau

    2012-01-01T23:59:59.000Z

    Grid Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . .considered obstacles [27] Grid Map showing Tile Size, Cellspeed map. It also covers grid maps and terrain roughness,

  7. Fractal Interrelationships in Field and Seismic Data Thomas H. Wilson (wilson @wvugeo.wvnet.edu; 304-293-5603)

    E-Print Network [OSTI]

    Wilson, Thomas H.

    Fractal Interrelationships in Field and Seismic Data Thomas H. Wilson (wilson @wvugeo Size scaling interrelationships are evaluated in this study using a fractal model. Fractal models relief, drainage, topographic relief and active fault patterns. The fractal properties of structural

  8. Development and Application of Nonlinear PCA for Fault

    E-Print Network [OSTI]

    Gorban, Alexander N.

    Development and Application of Nonlinear PCA for Fault Diagnosis in Internal Combustion Engines Uwe to an Internal Combustion Engine · Conclusions and Future Challenges #12;Slide 3 Uwe Kruger Development Kruger School of Electronics, Electrical Engineering & Computer Science Ashby Building Stranmillis Road

  9. Electrical faults modeling of the photovoltaic generator Wail Rezgui1

    E-Print Network [OSTI]

    Boyer, Edmond

    Electrical faults modeling of the photovoltaic generator Wail Rezgui1 , Leïla-Hayet Mouss1 , Kinza is captured by the generator and direct electrical energy resulting from the conversion of the solar radiation of a problem at the generator. Practically, the existence of electrical defects on this type of systems can

  10. Test Case Purification for Improving Fault Localization Jifeng Xuan

    E-Print Network [OSTI]

    Test Case Purification for Improving Fault Localization Jifeng Xuan INRIA Lille - Nord Europe Lille on the execution trace of test cases. Failing test cases and their assertions form test oracles for the failing behavior of the system under analysis. In this paper, we propose a novel concept of spectrum driven test

  11. Statistical Approaches to Fault Analysis in Multivariate Process Control

    E-Print Network [OSTI]

    Ungar, Lyle H.

    Statistical Approaches to Fault Analysis in Multivariate Process Control Richard D. De Veaux Lyle H Abstract After a brief review of some statistical approaches to multivariate process control, we present analysis or partial least squares to limit the number of latent variables to study. While using historical

  12. Influence of plastic deformation on bimaterial fault rupture directivity

    E-Print Network [OSTI]

    Dmowska, Renata

    Influence of plastic deformation on bimaterial fault rupture directivity Nora DeDontney,1 Elizabeth of the role of the stress state on the distribution of plastic deformation and the direction of preferred in determining the location of plastic deformation. For different orientations, plastic deformation can

  13. On Fault Coverage of Tests for Finite State Specifications

    E-Print Network [OSTI]

    von Bochmann, Gregor

    On Fault Coverage of Tests for Finite State Specifications A. Petrenko and G. v. Bochmann-Ville, Montréal (Québec), H3C 3J7, Canada Abstract Testing is a trade-off between increased confidence in the correctness of the implementation under test and constraints on the amount of time and effort that can

  14. Fault Detection Effectiveness of Spathic Test Data Jane Huffman Hayes

    E-Print Network [OSTI]

    Hayes, Jane E.

    Fault Detection Effectiveness of Spathic Test Data Jane Huffman Hayes Computer Science Department This paper presents an approach for generating test data for unit-level, and possibly integration-level, testing based on sampling over intervals of the input probability distribution, i.e., one that has been

  15. Motion and evolution of the Chaochou Fault, Southern Taiwan

    E-Print Network [OSTI]

    Hassler, Lauren E.

    2005-11-01T23:59:59.000Z

    has been called the Chuchi Transfer Fault Zone (Lacombe et al., 2001). This boundary represents a major change in the character of seismicity in Taiwan. Although the nature of this boundary is not known, it may represent the southern extent of direct...

  16. Fault-tolerant architecture for quantum computation using electrically controlled

    E-Print Network [OSTI]

    Loss, Daniel

    ARTICLES Fault-tolerant architecture for quantum computation using electrically controlled an architecture for quantum computation using electrically controlled semiconductor spins by extending the Loss in the solid state. Here, we develop a scalable architecture for solid-state quantum computation based

  17. Fracture surface energy of the Punchbowl fault, San Andreas system

    E-Print Network [OSTI]

    Chester, Frederick M.

    Fracture surface energy of the Punchbowl fault, San Andreas system Judith S. Chester1 , Frederick M. Chester1 & Andreas K. Kronenberg1 Fracture energy is a form of latent heat required to create weakening1­3 . Fracture energy has been estimated from seismological and experimental rock deformation data4

  18. High voltage fault current limiter having immersed phase coils

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2014-04-22T23:59:59.000Z

    A fault current limiter including: a ferromagnetic circuit formed from a ferromagnetic material and including at least a first limb, and a second limb; a saturation mechanism surrounding a limb for magnetically saturating the ferromagnetic material; a phase coil wound around a second limb; a dielectric fluid surrounding the phase coil; a gaseous atmosphere surrounding the saturation mechanism.

  19. Module Placement for Fault-Tolerant Microfluidics-Based Biochips

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    Module Placement for Fault-Tolerant Microfluidics-Based Biochips FEI SU and KRISHNENDU CHAKRABARTY Duke University Microfluidics-based biochips are soon expected to revolutionize clinical diagnosis, DNA sequencing, and other laboratory procedures involving molecular biology. Most microfluidic biochips today

  20. Active Probing Approach for Fault Localization in Computer Networks*

    E-Print Network [OSTI]

    Sethi, Adarshpal

    to develop tools for performing fault localization. We discuss various design issues involved and propose architecture for building such a tool. We describe an algorithm for probe set selection for problem detection a wide range of activities involving network design and operation [7, 9, 17, 18]. Network monitoring can

  1. Real Time Control Design for Mobile Robot Fault Tolerant Control.

    E-Print Network [OSTI]

    Kuehnlenz, Kolja

    Mobile Robot. Cristian Axenie Automation and Industrial Informatics Department Razvan Solea, Lecturer, Ph-time distributed control application with fault tolerance capabilities for differential wheeled mobile robots mobile robot the author has been able to develop a hierarchical software application that minimizes costs

  2. Fault Tolerance on Interleaved inverter with Magnetic couplers

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fault Tolerance on Interleaved inverter with Magnetic couplers K.Guépratte, D.Frey, P-O.Jeannin, H Electrical Engineering (G2Elab), Thales Systemes Aeroportes Abstract- The paper focuses on a new control strategy for improving the availability of power electronic converters based on interleaved structures

  3. Defects and Faults in Quantum Cellular Automata at Nano Scale

    E-Print Network [OSTI]

    Defects and Faults in Quantum Cellular Automata at Nano Scale Mehdi Baradaran Tahoori, Mariam considerable research on quantum dot cellular automata (QCA) as a new computing scheme in the nano, quantum dot cellular automata (QCA) not only gives a solution at nano scale, but also it offers a new

  4. Proceedings of the 18th Fault-Tolerant Computing Symposium

    E-Print Network [OSTI]

    Tamir, Yuval

    Proceedings of the 18th Fault-Tolerant Computing Symposium Tokyo, Japan, pp. 234-239, June 1988 performed on this erroneous information are ``undone'' using a hardware mechanism for fast rollback of a few and confine the damage caused by the error to the failed module, it is often necessary to check the outputs

  5. Outlier Detection Rules for Fault Detection in Solar Photovoltaic Arrays

    E-Print Network [OSTI]

    Lehman, Brad

    Abstract-- Solar photovoltaic (PV) arrays are unique power sources that may have uncleared fault current of solar photovoltaic (PV) systems. Different from traditional power sources, solar PV array is unique devices (OCPD). This may be caused by non-linear output characteristics of solar PV arrays, low irradiance

  6. Combining Tools for the Verification of FaultTolerant Systems

    E-Print Network [OSTI]

    Peleska, Jan - Fachbereich 3

    and verification of faulttolerant systems according to the invent&verify paradigm. Our method is based on the CSP specifications (CSP process terms), refinement relations or combinations of these three description formalisms specification paradigms ac cording to the specific needs of each development step is essential to cope

  7. Condition Assessment and Fault Prognostics of Microelectromechanical Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Condition Assessment and Fault Prognostics of Microelectromechanical Systems K. Medjaher , H. Skima-Mechatronic Systems Department 24, rue Alain Savary, 25000 Besanon, France Abstract Microelectromechanical systems to microelectromechanical systems (MEMS), since these latter devices undergo failures during their life- time. However

  8. Wind Energy Conversion Systems Fault Diagnosis Using Wavelet Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wind Energy Conversion Systems Fault Diagnosis Using Wavelet Analysis Elie Al-Ahmar1,2 , Mohamed El, induction generator, Discrete Wavelet Transform (DWT), failure diagnosis. I. Introduction Wind energy the condition of induction machines. Fig. 1. Worldwide growth of wind energy installed capacity [1]. 1 E. Al

  9. How to Generate Fault Trees from Causal In uence Diagrams

    E-Print Network [OSTI]

    Ladkin, Peter B.

    . 1 #12; Hydrocarbon in Steam in Catalyst in Vent 1 Vent 2 Product out Tank Pressure controller Handbook [VGRH81], written by some of the original developers of fault tree methodology in the nuclear; Explosion Pressure too high PRV 1 does not open PRV 2 does not open Valve failure Operator does not know

  10. Permanent Magnets Synchronous Machines Faults Detection and Identification

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for permanent magnet synchronous machines (PMSM). Two main faults occurring on these machines are identified of the PMSM is devel- oped and simulated using Matlab Simulink. The model enables simulating nominal and faulty PMSM behavior, with several stages of degradation, and is supported by tests results. Specific

  11. Spectral conditions for positive maps

    E-Print Network [OSTI]

    Dariusz Chruscinski; Andrzej Kossakowski

    2008-09-29T23:59:59.000Z

    We provide a partial classification of positive linear maps in matrix algebras which is based on a family of spectral conditions. This construction generalizes celebrated Choi example of a map which is positive but not completely positive. It is shown how the spectral conditions enable one to construct linear maps on tensor products of matrix algebras which are positive but only on a convex subset of separable elements. Such maps provide basic tools to study quantum entanglement in multipartite systems.

  12. Mapping your data: Integrating data into a GIS

    E-Print Network [OSTI]

    Houser, Rhonda

    2006-12-12T23:59:59.000Z

    handouts to be copied: o GIS Investigation sheet (p. 7 ? 17); note see answers p. 6 o Definitions (p. 18) o Appendix A: TIGER 2000 CFCC Codes (p. 19 ? 20) o Student Answer sheet (p. 21) Standards & Objectives National Geography Standards (Adapted from... Values? ? Change the ?Value Field? to ?CFCC? ? Click the ?Add All Values? button ArcLessons Template, Copyright ? 2005 ESRI. All rights reserved. Mapping Your Data, Copyright ? 2006 Rhonda Houser. 10 Mapping Your Data ? Read the descriptions...

  13. Proactive Fault Tolerance for HPC with Xen Virtualization

    SciTech Connect (OSTI)

    Nagarajan, Arun Babu [North Carolina State University; Mueller, Frank [North Carolina State University; Engelmann, Christian [ORNL; Scott, Stephen L [ORNL

    2007-01-01T23:59:59.000Z

    with thousands of processors. At such large counts of compute nodes, faults are becoming common place. Current techniques to tolerate faults focus on reactive schemes to recover from faults and generally rely on a checkpoint/restart mechanism. Yet, in today's systems, node failures can often be anticipated by detecting a deteriorating health status. Instead of a reactive scheme for fault tolerance (FT), we are promoting a proactive one where processes automatically migrate from ?unhealthy? nodes to healthy ones. Our approach relies on operating system virtualization techniques exemplied by but not limited to Xen. This paper contributes an automatic and transparent mechanism for proactive FT for arbitrary MPI applications. It leverages virtualization techniques combined with health monitoring and load-based migration. We exploit Xen's live migration mechanism for a guest operating system (OS) to migrate an MPI task from a health-deteriorating node to a healthy one without stopping the MPI task during most of the migration. Our proactive FT daemon orchestrates the tasks of health monitoring, load determination and initiation of guest OS migration. Experimental results demonstrate that live migration hides migration costs and limits the overhead to only a few seconds making it an attractive approach to realize FT in HPC systems. Overall, our enhancements make proactive FT a valuable asset for long-running MPI application that is complementary to reactive FT using full checkpoint/ restart schemes since checkpoint frequencies can be reduced as fewer unanticipated failures are encountered. In the context of OS virtualization, we believe that this is the rst comprehensive study of proactive fault tolerance where live migration is actually triggered by health monitoring.

  14. DOCUMENT MAPS FOR COMPETENCE MANAGEMENT

    E-Print Network [OSTI]

    Honkela, Timo

    DOCUMENT MAPS FOR COMPETENCE MANAGEMENT Timo Honkela Helsinki University of Technology Neural area of the document maps, i.e., competence management. The document map approach has approved The WEBSOM is a method for analyzing and visualizing large document col- lections. In the WEBSOM method

  15. Power Maps in Algebra and

    E-Print Network [OSTI]

    Thévenaz, Jacques

    Power Maps in Algebra and Topology Kathryn Hess Preface The case of commutative algebras The Hochschild complex of a twisting cochain Power maps on the Hochschild complex Topological relevance Power Compostela, 17 September 2008 #12;Power Maps in Algebra and Topology Kathryn Hess Preface The case

  16. THE GALACTIC MAGNETIC FIELD

    SciTech Connect (OSTI)

    Jansson, Ronnie; Farrar, Glennys R. [Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, NY 10003 (United States)

    2012-12-10T23:59:59.000Z

    With this Letter, we complete our model of the Galactic magnetic field (GMF), by using the WMAP7 22 GHz total synchrotron intensity map and our earlier results to obtain a 13-parameter model of the Galactic random field, and to determine the strength of the striated random field. In combination with our 22-parameter description of the regular GMF, we obtain a very good fit to more than 40,000 extragalactic Faraday rotation measures and the WMAP7 22 GHz polarized and total intensity synchrotron emission maps. The data call for a striated component to the random field whose orientation is aligned with the regular field, having zero mean and rms strength Almost-Equal-To 20% larger than the regular field. A noteworthy feature of the new model is that the regular field has a significant out-of-plane component, which had not been considered earlier. The new GMF model gives a much better description of the totality of data than previous models in the literature.

  17. Mapping Biomass Distribution Potential

    E-Print Network [OSTI]

    Schaetzel, Michael

    2010-11-18T23:59:59.000Z

    Mapping Biomass Distribution Potential Michael Schaetzel Undergraduate ? Environmental Studies ? University of Kansas L O C A T S I O N BIOMASS ENERGY POTENTIAL o According to DOE, Biomass has the potential to provide 14% of... the nations power o Currently 1% of national power supply o Carbon neutral? combustion of biomass is part of the natural carbon cycle o Improved crop residue management has potential to benefit environment, producers, and economy Biomass Btu...

  18. Near BPS Skyrmions and Restricted Harmonic Maps

    E-Print Network [OSTI]

    J. M. Speight

    2014-06-03T23:59:59.000Z

    Motivated by a class of near BPS Skyrme models introduced by Adam, S\\'anchez-Guill\\'en and Wereszczy\\'nski, the following variant of the harmonic map problem is introduced: a map $\\phi:(M,g)\\rightarrow (N,h)$ between Riemannian manifolds is restricted harmonic (RH) if it locally extremizes $E_2$ on its $SDiff(M)$ orbit, where $SDiff(M)$ denotes the group of volume preserving diffeomorphisms of $(M,g)$, and $E_2$ denotes the Dirichlet energy. It is conjectured that near BPS skyrmions tend to RH maps in the BPS limit. It is shown that $\\phi$ is RH if and only if $\\phi^*h$ has exact divergence, and a linear stability theory of RH maps is developed, whence it follows that all weakly conformal maps, for example, are stable RH. Examples of RH maps in every degree class $R^3\\to SU(2)$ and $R^2\\to S^2$ are constructed. It is shown that the axially symmetric BPS skyrmions on which all previous analytic studies of near BPS Skyrme models have been based, are not RH, so each such field can be deformed along $SDiff(R^3)$ to yield BPS skyrmions with lower $E_2$, casting doubt on the predictions of such studies. The problem of minimizing $E_2$ for $\\phi:R^k\\to N$ over all linear volume preserving diffeomorphisms is solved explicitly, and a deformed axially symmetric family of Skyrme fields constructed which are candidates for approximate near BPS skyrmions at low baryon number. The notion of restricted harmonicity is generalized to restricted $F$-criticality where $F$ is any functional on maps $(M,g)\\to (N,h)$ which is, in a precise sense, geometrically natural. The case where $F$ is a linear combination of $E_2$ and $E_4$, the usual Skyrme term, is studied in detail, and it is shown that inverse stereographic projection $R^3\\to S^3\\equiv SU(2)$ is stable restricted $F$-critical for every such $F$.

  19. Development of Asset Fault Signatures for Prognostic and Health Management in the Nuclear Industry

    SciTech Connect (OSTI)

    Vivek Agarwal; Nancy J. Lybeck; Randall Bickford; Richard Rusaw

    2014-06-01T23:59:59.000Z

    Proactive online monitoring in the nuclear industry is being explored using the Electric Power Research Institutes Fleet-Wide Prognostic and Health Management (FW-PHM) Suite software. The FW-PHM Suite is a set of web-based diagnostic and prognostic tools and databases that serves as an integrated health monitoring architecture. The FW-PHM Suite has four main modules: Diagnostic Advisor, Asset Fault Signature (AFS) Database, Remaining Useful Life Advisor, and Remaining Useful Life Database. This paper focuses on development of asset fault signatures to assess the health status of generator step-up generators and emergency diesel generators in nuclear power plants. Asset fault signatures describe the distinctive features based on technical examinations that can be used to detect a specific fault type. At the most basic level, fault signatures are comprised of an asset type, a fault type, and a set of one or more fault features (symptoms) that are indicative of the specified fault. The AFS Database is populated with asset fault signatures via a content development exercise that is based on the results of intensive technical research and on the knowledge and experience of technical experts. The developed fault signatures capture this knowledge and implement it in a standardized approach, thereby streamlining the diagnostic and prognostic process. This will support the automation of proactive online monitoring techniques in nuclear power plants to diagnose incipient faults, perform proactive maintenance, and estimate the remaining useful life of assets.

  20. 3D Magnetotelluic characterization of the Coso GeothermalField

    SciTech Connect (OSTI)

    Newman, Gregory A.; Hoversten, G. Michael; Wannamaker, Philip E.; Gasperikova, Erika

    2007-04-23T23:59:59.000Z

    Electrical resistivity may contribute to progress inunderstanding geothermal systems by imaging the geometry, bounds andcontrolling structures in existing production, and thereby perhapssuggesting new areas for field expansion. To these ends, a dense grid ofmagnetotelluric (MT) stations plus a single line of contiguous bipolearray profiling has been acquired over the east flank of the Cosogeothermal system. Acquiring good quality MT data in producing geothermalsystems is a challenge due to production related electromagnetic (EM)noise and, in the case of Coso, due to proximity of a regional DCintertie power transmission line. To achieve good results, a remotereference completely outside the influence of the dominant source of EMnoise must be established. Experimental results so far indicate thatemplacing a reference site in Amargosa Valley, NV, 65 miles from the DCintertie, isstill insufficient for noise cancellation much of the time.Even though the DC line EM fields are planar at this distance, theyremain coherent with the nonplanar fields in the Coso area hence remotereferencing produces incorrect responses. We have successfully unwrappedand applied MT times series from the permanent observatory at Parkfield,CA, and these appear adequate to suppress the interference of thecultural EM noise. The efficacy of this observatory is confirmed bycomparison to stations taken using an ultra-distant reference site eastof Socorro, NM. Operation of the latter reference was successful by usingfast ftp internet communication between Coso Junction and the New MexicoInstitute of Mining and Technology, using the University of Utah site asintermediary, and allowed referencing within a few hours of datadownloading at Coso. A grid of 102 MT stations was acquired over the Cosogeothermal area in 2003 and an additional 23 stations were acquired toaugment coverage in the southern flank of the first survey area in 2005.These data have been inverted to a fully three-dimensional conductivitymodel. Initial analysis of the Coso MT data was carried out using 2D MTimaging. An initial 3D conductivity model was constructed from a seriesof 2D resistivity images obtained using the inline electric fieldmeasurements (Zyx impedance elements) along several measurementtransects. This model was then refined through a 3D inversion process.This model shows the controlling geological structures possiblyinfluencing well production at Coso and correlations with mapped surfacefeatures such as faults and regional geoelectric strike. The 3D modelalso illustrates the refinement in positioning of conductivity contactswhen compared to isolated 2D inversion transects. The conductivity modelhas also been correlated with microearthquake locations, well fluidproduction intervals and most importantly with an acoustic and shearvelocity model derived by Wu and Lees (1999). This later correlationshows the near-vertical high conductivity structure on the eastern flankof the producing field is also a zone of increased acoustic velocity andincreased Vp/Vs ratio bounded by mapped fault traces. South of theDevil's Kitchen is an area of high geothermal well density, where highlyconductive near surface material is interpreted as a clay cap alterationzone manifested from the subsurface geothermal fluids and relatedgeochemistry. Beneath the clay cap, however, the conductivity isnondescript, whereas the Vp/Vs ratio is enhanced over the productionintervals. It is recommended that more MT data sites be acquired to thesouthwest of the Devil's Kitchen area to better refine the conductivitymodel in that area.

  1. Site Map - Cyclotron 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearchScheduled System Highlights Success Stories ContactSite MapSite

  2. Site map | Jefferson Lab

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearchScheduled System Highlights Success StoriesSite Map Site

  3. MAP | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories on climateJunoMedanos EnergyM Communications Smart Grid ProjectMAP

  4. Mapping the Nanoscale Landscape

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the Nanoscale Landscape Print For the first time, researchers

  5. Mapping the Nanoscale Landscape

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the Nanoscale Landscape Print For the first time,

  6. Fermilab Site Map

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial ThinFORFALL NEWSFemtosecondSystemsthis map as a

  7. Map to CAMD

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey selected as Fulbright-Nehru FellowMap of

  8. Mapping the Nanoscale Landscape

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey selected as Fulbright-NehruMapping the March

  9. Mapping the Nanoscale Landscape

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey selected as Fulbright-NehruMapping the

  10. Maps & Directions | 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey selected as Fulbright-NehruMapping

  11. Modelling and Computation of AC Fields and Losses in

    E-Print Network [OSTI]

    Sbester, Andrs

    electricity but inherently has energy losses associated with (joule) heating. Fault current limiters would be installed in transmission and distribution systems, especially for electric utilities and large energy users. High-Tc superconductors experience energy loss when exposed to time-varying magnetic fields or carrying

  12. Cockade breccia: Product of mineralisation along dilational faults

    E-Print Network [OSTI]

    Frenzel, Max; Woodcock, Nigel H.

    2014-01-01T23:59:59.000Z

    . Geological Society of America, Washington, D.C. 548 Bateman, A.M., 1924. Angular inclusions and replacement deposits. Economic Geology 19, 504549 520. 550 Beck, R., 1903. Lehre von den Erzlagersttten. 2nd Ed., Gebrder Borntrger, Berlin. 551 Blissont... Date: 6 June 2014 Revised Date: 29 August 2014 Accepted Date: 2 September 2014 Please cite this article as: Frenzel, M., Woodcock, N.H., Cockade breccia: Product of mineralisation along dilational faults, Journal of Structural Geology (2014), doi: 10...

  13. Defect mapping system

    DOE Patents [OSTI]

    Sopori, B.L.

    1995-04-11T23:59:59.000Z

    Apparatus for detecting and mapping defects in the surfaces of polycrystalline materials in a manner that distinguishes dislocation pits from grain boundaries includes a laser for illuminating a wide spot on the surface of the material, a light integrating sphere with apertures for capturing light scattered by etched dislocation pits in an intermediate range away from specular reflection while allowing light scattered by etched grain boundaries in a near range from specular reflection to pass through, and optical detection devices for detecting and measuring intensities of the respective intermediate scattered light and near specular scattered light. A center blocking aperture or filter can be used to screen out specular reflected light, which would be reflected by nondefect portions of the polycrystalline material surface. An X-Y translation stage for mounting the polycrystalline material and signal processing and computer equipment accommodate rastor mapping, recording, and displaying of respective dislocation and grain boundary defect densities. A special etch procedure is included, which prepares the polycrystalline material surface to produce distinguishable intermediate and near specular light scattering in patterns that have statistical relevance to the dislocation and grain boundary defect densities. 20 figures.

  14. Gravity and fault structures, Long Valley caldera, California

    SciTech Connect (OSTI)

    Carle, S.F.; Goldstein, N.E.

    1987-07-01T23:59:59.000Z

    The main and catastrophic phase of eruption in Long Valley occurred 0.73 m.y. ago with the eruption of over 600 km/sup 3/ of rhyolitic magma. Subsequent collapse of the roof rocks produced a caldera which is now elliptical in shape, 32 km east-west by 17 km north-south. The caldera, like other large Quarternary silicic ash-flow volcanoes that have been studied by various workers, has a nearly coincident Bouguer gravity low. Earlier interpretations of the gravity anomaly have attributed the entire anomaly to lower density rocks filling the collapsed structure. However, on the basis of many additional gravity stations and supporting subsurface data from several new holes, a much more complex and accurate picture has emerged of caldera structure. From a three-dimensional inversion of the residual Bouguer gravity data we can resolve discontinuities that seem to correlate with extensions of pre-caldera faults into the caldera and faults associated with the ring fracture. Some of these faults are believed related to the present-day hydrothermal upflow zone and the zone of youngest volcanic activity within the caldera.

  15. Superconducting fault current-limiter with variable shunt impedance

    DOE Patents [OSTI]

    Llambes, Juan Carlos H; Xiong, Xuming

    2013-11-19T23:59:59.000Z

    A superconducting fault current-limiter is provided, including a superconducting element configured to resistively or inductively limit a fault current, and one or more variable-impedance shunts electrically coupled in parallel with the superconducting element. The variable-impedance shunt(s) is configured to present a first impedance during a superconducting state of the superconducting element and a second impedance during a normal resistive state of the superconducting element. The superconducting element transitions from the superconducting state to the normal resistive state responsive to the fault current, and responsive thereto, the variable-impedance shunt(s) transitions from the first to the second impedance. The second impedance of the variable-impedance shunt(s) is a lower impedance than the first impedance, which facilitates current flow through the variable-impedance shunt(s) during a recovery transition of the superconducting element from the normal resistive state to the superconducting state, and thus, facilitates recovery of the superconducting element under load.

  16. On the harmonic map equation

    E-Print Network [OSTI]

    S. C. Tiwari

    2007-06-09T23:59:59.000Z

    A generalized harmonic map equation is presented based on the proposed action functional in the Weyl space (PLA, 135, 315, 1989).

  17. Wave maps on a wormhole

    E-Print Network [OSTI]

    Piotr Bizo?; Micha? Kahl

    2014-12-17T23:59:59.000Z

    We consider equivariant wave maps from a wormhole spacetime into the three-sphere. This toy-model is designed for gaining insight into the dissipation-by-dispersion phenomena, in particular the soliton resolution conjecture. We first prove that for each topological degree of the map there exists a unique static solution (harmonic map) which is linearly stable. Then, using the hyperboloidal formulation of the initial value problem, we give numerical evidence that every solution starting from smooth initial data of any topological degree evolves asymptotically to the harmonic map of the same degree. The late-time asymptotics of this relaxation process is described in detail.

  18. A reservoir management study of a mature oil field

    E-Print Network [OSTI]

    Peruzzi, Tave

    1995-01-01T23:59:59.000Z

    to other mature oil fields to make sound engineering and business decisions. I interpreted the geological structure and stratigaphy of the salt dome oil field. Structure, isopach and cross-sectional maps were constructed. Depositional environments...

  19. Using electrical impedance tomography to map subsurface hydraulic conductivity

    DOE Patents [OSTI]

    Berryman, James G. (Danville, CA); Daily, William D. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Roberts, Jeffery J. (Livermore, CA)

    2000-01-01T23:59:59.000Z

    The use of Electrical Impedance Tomography (EIT) to map subsurface hydraulic conductivity. EIT can be used to map hydraulic conductivity in the subsurface where measurements of both amplitude and phase are made. Hydraulic conductivity depends on at least two parameters: porosity and a length scale parameter. Electrical Resistance Tomography (ERT) measures and maps electrical conductivity (which can be related to porosity) in three dimensions. By introducing phase measurements along with amplitude, the desired additional measurement of a pertinent length scale can be achieved. Hydraulic conductivity controls the ability to flush unwanted fluid contaminants from the surface. Thus inexpensive maps of hydraulic conductivity would improve planning strategies for subsequent remediation efforts. Fluid permeability is also of importance for oil field exploitation and thus detailed knowledge of fluid permeability distribution in three-dimension (3-D) would be a great boon to petroleum reservoir analysts.

  20. An expert system for fault section diagnosis of power systems using fuzzy relations

    SciTech Connect (OSTI)

    Cho, H.J. [LG Electronics Research Center, Seoul (Korea, Republic of); Park, J.K. [Seoul National Univ. (Korea, Republic of). Dept. of Electrical Engineering

    1997-02-01T23:59:59.000Z

    This paper proposes an expert system using fuzzy relations to deal with uncertainties imposed on fault section diagnosis of power systems. The authors build sagittal diagrams which represent the fuzzy relations for power systems, and diagnose fault sections using the sagittal diagrams. Next, they examine the malfunction or wrong alarm of relays and circuit breakers based on the alarm information and the estimated fault section. The proposed system provides the fault section candidates in terms of the degree of membership and the malfunction or wrong alarm. An operator monitors these candidates and is able to diagnose the fault section, coping with uncertainties. Experimental studies for real power systems reveal usefulness of the proposed technique to diagnose faults that have uncertainty.

  1. Effect of HVDC line faults on transient torsional torques of turbine-generator shafts

    SciTech Connect (OSTI)

    Shi, W. (Xi'an Jiaotong Univ. (China). Dept. of Electrical Engineering); Iravani, M.R. (Univ. of Toronto, Ontario (Canada). Dept. of Electrical Engineering)

    1994-08-01T23:59:59.000Z

    This paper investigates the effects of HVdc line faults, line de-energization, and line re-energization on the transient torsional stresses of steam turbine-generator (T-G) units. The studies are conducted on a bipole HVdc system which connects a T-G set to a large ac system. The shaft transient stresses of the T-G set as a result of HVac line fault, fault clearing, and automatic reclosure are also determined when the HVdc transmission system is replaced by an equivalent double-line HVac system. The EMTDC program is used for the simulation studies. The studies conclude that transient shaft stresses as a result of HVdc line fault and its subsequent switching events are (1) significantly less severe than those of HVac faults and subsequent switchings, and (2) not sensitive to the fault location and disturbance duration.

  2. A High-Resolution Aeromagnetic Survey to Identify Buried Faults at Dixie Valley, Nevada

    SciTech Connect (OSTI)

    Smith, Richard Paul; Grauch, V. J. S.; Blackwell, David D.

    2002-09-01T23:59:59.000Z

    Preliminary results from a high-resolution aeromagnetic survey (200m line spacing) acquired in Dixie Valley early in 2002 provide confirmation of intra-basin faulting based on subtle surface indications. In addition the data allow identification of the locations and trends of many faults that have not been recognized at the surface, and provide a picture of intrabasin faulting patterns not possible using other techniques. The data reveal a suite of northeasterly-trending curving and branching faults that surround a relatively coherent block in the area of Humboldt Salt Marsh, the deepest part of the basin. The producing reservoir occurs at the north end of this coherent block, where rampart faults from the northwest side of the valley merge with anthithetic faults from the central and southeast parts of the valley.

  3. The Metro Map Problem Existing metro maps, produced by professional

    E-Print Network [OSTI]

    Hong,Seokhee

    optimization methods to find a minimal energy state 20 Force directed method for metro map visualization artists, are excellent examples of network visualization Can we produce good metro maps automatically Virtual Environments Case Study - Stock Market MS-Guidelines MS-Process MS-Taxonomy Software Engineering

  4. Multidisciplinary reservoir description of the Batu Raja Limestone, Bima field, offshore northwest Java, Indonesia

    SciTech Connect (OSTI)

    Kaldi, J.G.; Woodling, G.S. (ARCO Oil and Gas Co., Plano, TX (USA)); Roe, R.C. (Atlantic Richfield Indonesia, Inc., Jakarta (Indonesia))

    1990-05-01T23:59:59.000Z

    Bima field is the largest hydrocarbon reservoir producing from carbonate rocks in the offshore northwest Java area. The giant field has multiple drive mechanisms and high viscosity oil, resulting in rapid gas/oil ratio and water-cut increase after 2 yr of production. Because of high stakes and reservoir complexities, a three dimensional reservoir simulation model was used to evaluate field development options. An integrated geological, geophysical, and engineering reservoir description was done to provide input for the model. Geologically, the Oligocene-Miocene Batu Raja Limestone was deposited on the Seribu Platform, a basement-controlled, fault-bounded carbonate build-up. The reservoir consists of a series of cleaning-upwards cycles that were exposed to meteoric leaching during a lower Miocene drop in sea level. This diagenetic event enhanced porosity and permeability across the buildup. Based on reservoir quality, the reservoir was zoned into five model layers. Geophysical input included micromodeling sections (a form of seismic inversion) that were generated from a dense grid of seismic data. These were calibrated to well logs and used to define the buildup edge and map the thickness of the entire Batu Raja and the main pay zone. Engineering reservoir description integrated capillary pressure, relative permeability, production, and drill-stem test data. The three-dimensional simulation model required treatments unique to the Bima Field including varying GOC depths to honor separate gas cap closures; making permeability pressure dependent in poorly consolidated zones, and setting up horizontal well completion treatments. The synergistic approach of geological, engineering, and geophysical input into the Bima reservoir study resulted in a reservoir management tool as well as a model to aid regional Batu Raja exploration strategies.

  5. Influence of faults on groundwater flow and transport at YuccaMountain, Nevada

    SciTech Connect (OSTI)

    Cohen, Andrew J.B.; Sitar, Nicholas

    1999-10-07T23:59:59.000Z

    Numerical simulations of groundwater flow at Yucca Mountain, Nevada are used to investigate how faults influence groundwater flow pathways and regional-scale macrodispersion. The 3-D model has a unique grid block discretization that facilitates the accurate representation of the complex geologic structure present in faulted formations. Each hydrogeologic layer is discretized into a single layer of irregular and dipping grid blocks, and faults are discretized such that they are laterally continuous and varied in displacement varies along strike. In addition, the presence of altered fault zones is explicitly modeled, as appropriate. Simulations show that upward head gradients can be readily explained by the geometry of hydrogeologic layers, the variability of layer permeabilities, and the presence of permeable fault zones or faults with displacement only, not necessarily by upwelling from a deep aquifer. Large-scale macrodispersion results from the vertical and lateral diversion of flow near the contact of high- and low-permeability layers at faults, and from upward flow within high-permeability fault zones. Conversely, large-scale channeling can occur as a result of groundwater flow into areas with minimal fault displacement. Contaminants originating at the water table can flow in a direction significantly different from that of the water table gradient, and isolated zones of contaminants can occur at the water table downgradient. By conducting both 2-D and 3-D simulations, we show that the 2-D cross-sectional models traditionally used to examine flow in faulted formations may not be appropriate. In addition, the influence of a particular type of fault cannot be generalized; depending on the location where contaminants enter the saturated zone, faults may either enhance or inhibit vertical dispersion.

  6. Performance Study of Enhanced Auto-Associative Neural Networks For Sensor Fault Detection

    E-Print Network [OSTI]

    Najafi, M.; Culp, C.; Langari, R.

    2004-01-01T23:59:59.000Z

    - INTRODUCTION When sensors malfunction, control systems become unreliable. Even with the most sophisticated instruments and control algorithms, a control decision based on faulty data will likely lead to incorrect control actions. ?Sensor Fault Detection...? is usually considered as a subset of fault detection. One of the well known approaches in Fault Detection is the model based approach in which a computational model is designed to predict the real system output while receiving the same input ([7], [8...

  7. Method of detecting the direction of arcing faults on power distribution feeders

    E-Print Network [OSTI]

    Fernando, W. Anand Krisantha

    1992-01-01T23:59:59.000Z

    harmonic symmetrical current components under high impedance arcing faults hss been proposed by Raiser of Power Technologies Inc [I]. Other methods using even, odd, and "in-between" harmonics (with respect to the 60 Hz fundamental frequency) have been... and the second based on the "in-between" harmonic frequency current correlation to the voltage of the faulted feeder [8]. Benner has proposed the correlation of voltage to the difference in line current, caused due to an arcing high impedance fault...

  8. SciTech Connect: Development of Asset Fault Signatures for Prognostic...

    Office of Scientific and Technical Information (OSTI)

    signatures to assess the health status of generator step-up generators and emergency diesel generators in nuclear power plants. Asset fault signatures describe the distinctive...

  9. E-Print Network 3.0 - andreas fault system Sample Search Results

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

    are approximately three times... OF DEVIATORIC STRESS ALONG THE SAN ANDREAS FAULT B. R. Smith (1), D. T. Sandwell (1) (1) IGPP, Scripps... along the San Andreas system ......

  10. E-Print Network 3.0 - adaptive fault detection Sample Search...

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

    or fault-free path. Therefore, the issue... present a technique to enhance minimal, fully-adaptive routing al- gorithms ... Source: Boppana, Rajendra V. - Department of Computer...

  11. E-Print Network 3.0 - algorithmic fault tree Sample Search Results

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

    based on fault trees derived using the IFT induction algorithm. The test system is a robot arm... University College Galway, Ireland. 12;INDUCTION AND THE IFT ALGORITHM To...

  12. Microsoft Word - GroundFaultSAND-rev7-JJ.doc

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

    3459 Unlimited Release Printed June 2013 Photovoltaic Ground Fault and Blind Spot Electrical Simulations Jack D. Flicker Jay Johnson Prepared by Sandia National Laboratories...

  13. Wind Power Plant Enhancement with a Fault-Current Limiter: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Gevorgian, V.; DeLaRosa, F.

    2011-03-01T23:59:59.000Z

    This paper investigates the capability of a saturable core fault-current limiter to limit the short circuit current of different types of wind turbine generators.

  14. E-Print Network 3.0 - achieve fault tolerance Sample Search Results

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

    3 This document contains 3087 words. FAULT-TOLERANT COMPUTING Summary: -the-shelf computers and achieved voting and reconfiguration primarily through software. The second...

  15. Fault Tolerance Techniques for Wireless Ad Hoc Sensor Networks Farinaz Koushanfar

    E-Print Network [OSTI]

    poten- tial to provide inexpensive and pervasive bridge between physical and computational worlds and actuators that have significantly higher fault rates than the traditional semiconductor integrated circuits

  16. Finite-difference modeling of faults and fractures Richard T. Coates ...

    E-Print Network [OSTI]

    2010-06-09T23:59:59.000Z

    For the purposes of seismic propagation, a slip fault may be regarded as a surface across which the dis- placement caused by a seismic wave is discontinuous.

  17. Fault-Based Attack of RSA Authentication Andrea Pellegrini, Valeria Bertacco and Todd Austin

    E-Print Network [OSTI]

    Austin, Todd M.

    a straightforward design architecture that en- tails a small silicon footprint and low-power profile. Our research enviromental manipulations. Our fault-based attack can be succ

  18. E-Print Network 3.0 - aircraft fault detection Sample Search...

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

    the next 3 years, we cannot use... aircrafts to detect faults on our new ones. Fuzzy logic converts expert knowledge (usually, rules... ), expressed in natural language, into...

  19. E-Print Network 3.0 - automatical adaptive fault Sample Search...

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

    and Information Sciences 50 FUSE -A HARDWARE ACCELERATED HDL FAULT INJECTION TOOL Marcus Jeitler, Martin Delvai Summary: the Hpe desk environment has 12;Fig. 3. FuSE...

  20. Coulomb stress accumulation along the San Andreas Fault system Bridget Smith and David Sandwell

    E-Print Network [OSTI]

    Smith-Konter, Bridget

    Coulomb stress accumulation along the San Andreas Fault system Bridget Smith and David Sandwell deformation, SCEC velocities, crustal stress Citation: Smith, B., and D. Sandwell, Coulomb stress accumulation

  1. MAPPING HUMAN BRAIN FUNCTION WITH MRI AT 7 TESLA Xiaoping HU, Essa YACOUB, Josef PFEUFFER, Amir SCHUMEL,

    E-Print Network [OSTI]

    MAPPING HUMAN BRAIN FUNCTION WITH MRI AT 7 TESLA Xiaoping HU, Essa YACOUB, Josef PFEUFFER, Amir of the BOLD response to neural activity increase with the field strength. With the establishment of a 7 Tesla at a magnetic field strength that significantly exceeds 4 Tesla. Functional mapping using echo-planar imaging

  2. Sub millimeter coregistration of functional maps across imaging sessions

    E-Print Network [OSTI]

    Boyer, Edmond

    for longitudinal studies of structural and functional brain plasticity. It is now feasible to collect functional brain maps with spatial resolutions of ~100 m in ultra-high field systems. While these data sets of coregistration across imaging sessions (or within, in the presence of head motion) is limited by the accuracy

  3. Practice Field Practice Field

    E-Print Network [OSTI]

    Courts Soccer Field Swimming pool Bandeen Hall Mountain House # 3 # 2 Golf Course Security Patterson Hall.B. Scott Arena Library Centennial Theater Mc Greer Hall Pollack Hall New Johnson Science Building Dewhurst Dining Hall Champlain Regional College # 4 Mackinnon Hall Residence # 6 Memorial House Retired Faculty

  4. Adaptive Composite Map Projections Bernhard Jenny

    E-Print Network [OSTI]

    Jenny, Bernhard

    Adaptive Composite Map Projections Bernhard Jenny Abstract--All major web mapping services use.The proposed composite map projection combines several projections that are recommended in cartographic.The composite projection adapts the maps geometry to scale, to the maps height-to-width ratio

  5. Tropical rainforest biodiversity: field and

    E-Print Network [OSTI]

    . The Udzungwas in particular, are one of the single, most important areas in Africa for biodiversity conservationTropical rainforest biodiversity: field and GIS tools for assessing, monitoring and mapping II with Tanzania National ParksTanzania National Parks andand Wildlife Conservation SocietyWildlife Conservation

  6. Waste Management Fault Tree Data Bank (WM): 1992 status report

    SciTech Connect (OSTI)

    Baughman, D.F.; Hang, P.; Townsend, C.S.

    1993-08-30T23:59:59.000Z

    The Risk Assessment Methodology Group (RAM) of the Nuclear Process Safety Research Section (NPSR) maintains a compilation of incidents that have occurred in the Waste Management facilities. The Waste Management Fault Tree Data Bank (WM) contains more than 35,000 entries ranging from minor equipment malfunctions to incidents with significant potential for injury or contamination of personnel. This report documents the status of the WM data bank including: availability, training, source of data, search options, and usage, to which these data have been applied. Periodic updates to this memorandum are planned as additional data or applications are acquired.

  7. Sandia National Laboratories: arc-fault circuit interrupter

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1development Sandia, NREL Release Wavearc-fault circuit interrupter Sandia Research on

  8. An expert system for fault detection and diagnosis

    E-Print Network [OSTI]

    Spasojevic, Predrag

    1992-01-01T23:59:59.000Z

    to thank Dr. Ali Abur for his help in setting Eb1TP simulations. I would also lilre to thank Charles Fromen and Don Sevcik both with HLtrP Houston for providing invaluable expertise used in this thesis. TABLE OF CONTENTS CHAPTER Page INTRODUCTION . A... IV EXPERT SYSTEM DESIGN . . A. Introduction B. Rochester DFR Conversion C. EMTP Output File Conversion 46 46 47 54 vn1 CHAPTER Page VI D. Signal Analysis: MATI, AB . E. Fault Diagnosis: CLIPS F. Waveform Presentation: MATLAB G...

  9. Award ER25750: Coordinated Infrastructure for Fault Tolerance Systems Indiana University Final Report

    SciTech Connect (OSTI)

    Lumsdaine, Andrew

    2013-03-08T23:59:59.000Z

    The main purpose of the Coordinated Infrastructure for Fault Tolerance in Systems initiative has been to conduct research with a goal of providing end-to-end fault tolerance on a systemwide basis for applications and other system software. While fault tolerance has been an integral part of most high-performance computing (HPC) system software developed over the past decade, it has been treated mostly as a collection of isolated stovepipes. Visibility and response to faults has typically been limited to the particular hardware and software subsystems in which they are initially observed. Little fault information is shared across subsystems, allowing little flexibility or control on a system-wide basis, making it practically impossible to provide cohesive end-to-end fault tolerance in support of scientific applications. As an example, consider faults such as communication link failures that can be seen by a network library but are not directly visible to the job scheduler, or consider faults related to node failures that can be detected by system monitoring software but are not inherently visible to the resource manager. If information about such faults could be shared by the network libraries or monitoring software, then other system software, such as a resource manager or job scheduler, could ensure that failed nodes or failed network links were excluded from further job allocations and that further diagnosis could be performed. As a founding member and one of the lead developers of the Open MPI project, our efforts over the course of this project have been focused on making Open MPI more robust to failures by supporting various fault tolerance techniques, and using fault information exchange and coordination between MPI and the HPC system software stack?from the application, numeric libraries, and programming language runtime to other common system components such as jobs schedulers, resource managers, and monitoring tools.

  10. A method to estimate the effect of deformable image registration uncertainties on daily dose mapping

    SciTech Connect (OSTI)

    Murphy, Martin J.; Salguero, Francisco J.; Siebers, Jeffrey V.; Staub, David; Vaman, Constantin [Department of Radiation Oncology, Virginia Commonwealth University, Richmond Virginia 23298 (United States)

    2012-02-15T23:59:59.000Z

    Purpose: To develop a statistical sampling procedure for spatially-correlated uncertainties in deformable image registration and then use it to demonstrate their effect on daily dose mapping. Methods: Sequential daily CT studies are acquired to map anatomical variations prior to fractionated external beam radiotherapy. The CTs are deformably registered to the planning CT to obtain displacement vector fields (DVFs). The DVFs are used to accumulate the dose delivered each day onto the planning CT. Each DVF has spatially-correlated uncertainties associated with it. Principal components analysis (PCA) is applied to measured DVF error maps to produce decorrelated principal component modes of the errors. The modes are sampled independently and reconstructed to produce synthetic registration error maps. The synthetic error maps are convolved with dose mapped via deformable registration to model the resulting uncertainty in the dose mapping. The results are compared to the dose mapping uncertainty that would result from uncorrelated DVF errors that vary randomly from voxel to voxel. Results: The error sampling method is shown to produce synthetic DVF error maps that are statistically indistinguishable from the observed error maps. Spatially-correlated DVF uncertainties modeled by our procedure produce patterns of dose mapping error that are different from that due to randomly distributed uncertainties. Conclusions: Deformable image registration uncertainties have complex spatial distributions. The authors have developed and tested a method to decorrelate the spatial uncertainties and make statistical samples of highly correlated error maps. The sample error maps can be used to investigate the effect of DVF uncertainties on daily dose mapping via deformable image registration. An initial demonstration of this methodology shows that dose mapping uncertainties can be sensitive to spatial patterns in the DVF uncertainties.

  11. An Alternate Career Choice for the Geography Major: Map, GIS, or Geographic Information Librarianship

    E-Print Network [OSTI]

    Weimer, Kathy

    2007-11-03T23:59:59.000Z

    The field of Map, GIS and Geographic Information Librarianship has expanded over the past decade. This expansion is due in part to the addition of GIS dataset collections in many university libraries, specialized government or corporate information...

  12. MAPS BETWEEN CLASSIFYING SPACES AND APPLICATIONS by

    E-Print Network [OSTI]

    Notbohm, Dietrich

    MAPS BETWEEN CLASSIFYING SPACES AND APPLICATIONS space map(BG, BH) can be reduced to the case of simply connected Lie groups. Th* *is reduc- tion method allows some applications. For example a homotopy classificatio* *n of self maps BG

  13. Mapping (USPTO) Patent Data using Overlays to Google Maps

    E-Print Network [OSTI]

    Leydesdorff, Loet

    2011-01-01T23:59:59.000Z

    The paper describes a technique to use patent information available online (at the US Patent and Trademark Office) for the generation of Google Maps that indicate both the quantity and quality of patents granted at the city level. The resulting maps are relevant for technological innovation policies and R&D management because the US market can be considered as the leading market for patenting and patent competition. Quantitative data is made available by the mapping routines for more detailed statistical analysis, and the non-parametric statistics for significance testing are specified. The new mapping approach is explored for the cases of the emerging technologies of "RNA interference" and "nanotechnology" as specific examples. Perspectives for further developments of this technique (other databases and network analysis of co-inventions) are specified.

  14. Mapping the Evolution of Scientific Fields Mark Herrera1

    E-Print Network [OSTI]

    of Maryland, College Park, Maryland, United States of America, 2 Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America, 3 Department partially funded by the Center for Nonlinear Studies at Los Alamos National Laboratory. MH was also funded

  15. Microseismicity and 3-D Mapping of an Active Geothermal Field...

    Open Energy Info (EERE)

    during drilling. Authors Catherine Lewis Kenedi, Eylon Shalev, Alan Lucas and Peter Malin Conference Proceedings World Geothermal Congress 2010; Bali, Indonesia; 042010 Published...

  16. Field Mapping At Roosevelt Hot Springs Geothermal Area (Ward...

    Open Energy Info (EERE)

    Area. References S. H. Ward, W. T. Parry, W. P. Nash, W. R. Sill, K. L. Cook, R. B. Smith, D. S. Chapman, F. H. Brown, J. A. Whelan, J. R. Bowman (1978) A Summary of the...

  17. Total field aeromagnetic map of the Raft River known Geothermal...

    Open Energy Info (EERE)

    SURVEYS; USA Authors Geological Survey, Denver and CO (USA) Published DOE Information Bridge, 111981 DOI 10.21725456508 Citation Geological Survey, Denver, CO (USA). 11...

  18. Field Mapping (Curewitz & Karson, 1997) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan Leandro,LawFEMAProjectExpressFeltonAir-Ground

  19. Field Mapping (Monaster And Coolbaugh, 2007) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan

  20. Field Mapping At Coso Geothermal Area (1978) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) Jump to:8) Exploration78)

  1. Field Mapping At Coso Geothermal Area (1980) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) Jump to:8) Exploration78)80

  2. Field Mapping At Coso Geothermal Area (1999) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) Jump to:8) Exploration78)8099

  3. Field Mapping At Coso Geothermal Area (2006) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) Jump to:8)

  4. Field Mapping At Coso Geothermal Area (2010) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) Jump to:8)2010 Usefulness not

  5. Field Mapping At Lualualei Valley Area (Thomas, 1986) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) JumpJemez Pueblo

  6. Field Mapping At Marysville Mt Area (Blackwell) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) JumpJemez PuebloArea

  7. Field Mapping At Mokapu Penninsula Area (Thomas, 1986) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4) JumpJemezInformation

  8. Field Mapping At Raft River Geothermal Area (1977) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4)OpenInformation Raft River

  9. Field Mapping At Raft River Geothermal Area (1980) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4)OpenInformation Raft

  10. Field Mapping At Raft River Geothermal Area (1990) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information 4)OpenInformation

  11. Field Mapping At Raft River Geothermal Area (1993) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy Information

  12. Field Mapping At Truckhaven Area (Layman Energy Associates, 2008) | Open

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy InformationInformation 4)Energy

  13. Field Mapping At Blue Mountain Geothermal Area (Fairbank Engineering Ltd,

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg BradleyFerrotec CorpFidelis Energy2003) |

  14. Field Mapping At Cascades Region (Ingebritsen & Mariner, 2010) | Open

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg BradleyFerrotec CorpFidelis Energy2003)

  15. Field Mapping At Chena Geothermal Area (Kolker, 2008) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg BradleyFerrotec CorpFidelis

  16. Field Mapping At Colrado Area (DOE GTP) | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg BradleyFerrotec

  17. Field Mapping At Valles Caldera - Sulphur Springs Geothermal Area (Bailey,

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg| Open Energy InformationThe2011) |

  18. Geology, compositional heterogeneities, and geochemical origin of the Yacheng gas field, Qiongdongnan Basin, South China Sea

    SciTech Connect (OSTI)

    Hao, F.; Li, S.; Sun, Y. [China Univ. of Geosciences, Wuhan, Hubei (China). Dept. of Petroleum Geology; Zhang, Q. [Nanhai West Oil Corp., Guangdong (China). Inst. of Petroleum Exploration and Development

    1998-07-01T23:59:59.000Z

    The Yacheng gas field is located in the footwall of the No. 1 fault, the boundary fault between the Yinggehai and Qiongdongnan basins. All strata are normally pressured in the gas field except for the Meishan Formation. The Meishan Formation is overpressured near the No. 1 fault in the gas field and in the adjacent Yinggehai Basin. An obvious thermal anomaly occurs below 3600 m in the gas field. This anomaly, characterized by an abrupt increase in drill-stem test and fluid-inclusion homogenization temperatures, vitrinite reflectance (R{sub o}), and Rock-Eval T{sub max}, and by an abnormally low temperature/R{sub o}/T{sub max} gradient, diminishes away from the Yinggehai Basin. The gases and condensates have abnormally high aromatic hydrocarbon contents and show obvious heterogeneities. Away from the No. 1 fault, the C{sub 2+} hydrocarbon content and C{sub 2+}/{Sigma}C{sub n} increase; carbon dioxide content decreases; {delta}{sup 13}C values for methane, ethane, and carbon dioxide become lighter; the heptane and isoheptane values decrease; and the relative contents of aromatic hydrocarbons, both in C{sub 6}/C{sub 7} light hydrocarbons and in the condensates, decrease. The gas field was charged from both the Qiongdongnan and the Yinggehai basins. Hydrocarbons sourced from the Qiongdongnan Basin have relatively low maturities, whereas hydrocarbons from the Yinggehai Basin have relatively higher maturities and seem to have been in association with hydrothermal fluids. The hydrothermal fluids from the Yinggehai Basin, in which methane, ethane, carbon dioxide, and especially aromatic hydrocarbons dissolved under the high-temperature and high-pressure subsurface conditions, migrated along the No. 1 fault and caused the abnormally high concentration of aromatic hydrocarbons, as well as the thermal anomalies in the gas field, especially near the No. 1 fault.

  19. Detection and diagnosis of faults and energy monitoring of HVAC systems with least-intrusive power analysis

    E-Print Network [OSTI]

    Luo, Dong, 1966-

    2001-01-01T23:59:59.000Z

    Faults indicate degradation or sudden failure of equipment in a system. Widely existing in heating, ventilating, and air conditioning (HVAC) systems, faults always lead to inefficient energy consumption, undesirable indoor ...

  20. Abstract-This paper investigates four different short circuit fault conditions which can occur for an inverter-fed perma-

    E-Print Network [OSTI]

    Jantsch, Axel

    for an inverter-fed perma- nent magnet synchronous motor (PMSM) with buried mag- nets. The fault conditions Condition #... Inverter PM machine (at steady state) N Short circuit fault conditions of a buried PMSM