Sample records for bay fault zone

  1. 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

  2. Stress and fault rock controls on fault zone hydrology, Coso...

    Open Energy Info (EERE)

    rock controls on fault zone hydrology, Coso geothermal field, CA Abstract In crystalline rock of the Coso Geothermal Field, CA, fractures are the primary source of permeability....

  3. 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

    E. McCallum (1999), Reservoir damage around faults: OutcropSkar (2005), Controls on damage zone asymmetry of a normal2007), The evolution of the damage zone with fault growth in

  4. 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...

  5. 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.

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

    E-Print Network [OSTI]

    Chester, Frederick Michael

    1983-01-01T23:59:59.000Z

    MECHANICAL PROPERIIES AND FABRIC OF THE PUiVCHBOlv'L FAULT ZONE, CALIFORNIA A Thesis by FREDERICK MICHAEL CHESTER Subm-', tted to the Graduate College of Texas ABM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1983 Major Subject: Geology MECHANICAL PROPERTIES AND FABRIC OF THE PUNCHBOWL FAULT ZONE, CALIFORNIA A Thesis by FREDERICK MICHAEL CHESTER Approved as to sty1e and content by: on . . an airman o ommittee) Me1vin edman...

  7. Microfracture fabric of the Punchbowl fault zone, San Andreas System, California

    E-Print Network [OSTI]

    Wilson, Jennifer Elizabeth

    1999-01-01T23:59:59.000Z

    The origin of fault zone structure is not completely understood. On the basis of mechanistic models of faulting, the characteristic internal structure of faults may largely be established early during growth of the fault, or it may develop...

  8. 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

  9. 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

  10. Spatial analysis of hypocenter to fault relationships for determining fault process zone width in Japan.

    SciTech Connect (OSTI)

    Arnold, Bill Walter; Roberts, Barry L.; McKenna, Sean Andrew; Coburn, Timothy C. (Abilene Christian University, Abilene, TX)

    2004-09-01T23:59:59.000Z

    Preliminary investigation areas (PIA) for a potential repository of high-level radioactive waste must be evaluated by NUMO with regard to a number of qualifying factors. One of these factors is related to earthquakes and fault activity. This study develops a spatial statistical assessment method that can be applied to the active faults in Japan to perform such screening evaluations. This analysis uses the distribution of seismicity near faults to define the width of the associated process zone. This concept is based on previous observations of aftershock earthquakes clustered near active faults and on the assumption that such seismic activity is indicative of fracturing and associated impacts on bedrock integrity. Preliminary analyses of aggregate data for all of Japan confirmed that the frequency of earthquakes is higher near active faults. Data used in the analysis were obtained from NUMO and consist of three primary sources: (1) active fault attributes compiled in a spreadsheet, (2) earthquake hypocenter data, and (3) active fault locations. Examination of these data revealed several limitations with regard to the ability to associate fault attributes from the spreadsheet to locations of individual fault trace segments. In particular, there was no direct link between attributes of the active faults in the spreadsheet and the active fault locations in the GIS database. In addition, the hypocenter location resolution in the pre-1983 data was less accurate than for later data. These pre-1983 hypocenters were eliminated from further analysis.

  11. 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.

  12. Clay fabric intensity in natural and artificial fault gouges: Implications for brittle fault zone processes and sedimentary

    E-Print Network [OSTI]

    Clay fabric intensity in natural and artificial fault gouges: Implications for brittle fault zone processes and sedimentary basin clay fabric evolution Samuel H. Haines,1 Ben A. van der Pluijm,1 Matt J intensity measurements using X-ray texture goniometry on 22 natural clay-rich fault gouges from low

  13. Frictional characteristics of serpentinite from the Motagua fault zone in Guatemala: an experimental study 

    E-Print Network [OSTI]

    Dengo, Carlos Arturo

    1978-01-01T23:59:59.000Z

    of the requirement for the degree of MASTER OF SCIENCE December 1978 Mad or Subjec' . " Geology FRICTIONAL CHARACTERISTIC OF SERPENTINITF. FRON THE I", OTAGUA FAULT ZONE Ili GUATENALA: AN EXPERIMENTAL STUDY A Thesis by CARLOS ARTURO DFNGO App", oved... strike-slip, seismogenic faults warrants a systematic i nvesti ga tion to determine ho v it". frictional characteristics may afreet slip along the fault. Five locations aiong the fault zone were sampled to investigate the sliding !rode as a function...

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

    Open Energy Info (EERE)

    from microearthquake data Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Locating an active fault zone in Coso geothermal field by...

  15. Trapping capacity of fault zones, downdip Yegua Formation, Texas Gulf Coast basin 

    E-Print Network [OSTI]

    Hintz, Jena Christine

    2001-01-01T23:59:59.000Z

    The homogenization of sediment from shearing forms traps in both the hanging wall and footwall due to capillary pressure differences. The sheared zone associated with large faults can form traps. Sheared zones associated ...

  16. Thermal Waters Along The Konocti Bay Fault Zone, Lake County...

    Open Energy Info (EERE)

    in the diluted spring waters suggest that the diluting water is old. Authors J. M. Thompson, R. H. Mariner, L. D. White, T. S. Presser and W. C. Evans Published Journal Journal...

  17. 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

    Using dynamic modeling of earthquake rupture on a strike-slip fault and seismic wave propagation in a three dimensional inhomogeneous elastoplastic medium, I investigate the inelastic response of compliant fault zones to nearby earthquakes. I...

  18. Hydrogeological aspects of fault zones on various scales in the Roer Valley Rift System

    E-Print Network [OSTI]

    Bense, Victor

    within fault zones has important implications for the modeling of groundwater flow in sedimentary aquifer; Groundwater flow; Unconsolidated sediments; The Netherlands 1. Introduction Numerous studies carried out, 1081 HV Amsterdam, The Netherlands Abstract The impact of faults on the groundwater flow system

  19. Characteristics of displacement transfer zones associated with thrust faults / by Arthur Francis Xavier O'Keefe 

    E-Print Network [OSTI]

    O'Keefe, Arthur Francis Xavier

    1980-01-01T23:59:59.000Z

    CHARAC 'ERZSTZCS OF DZSPLACENENT TRANSFER 'ZONES ASSOCIATED WI H THRUST FAULTS A Thesis by ARTHUR FRANCIS XAVIER O&HEEFE Submitted to the Graduate College of Texas AlkM University in partial fulfillment of the requirement for the degree... of NASTER OF SCIENCE August 1990 Idaho or Subrent: Geology CHARACTERISTICS QF DISPLACEMENT TRANSFER ZONES ASSOCIATED NITS THRUST FAULTS A Thesis by ARTHUR FRANCIS XAVIER 0 'KEEFE Approved ss to style and content by: (Co-chairman of' Commi. tee...

  20. 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. ,

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

    E-Print Network [OSTI]

    Chester, Frederick Michael

    1983-01-01T23:59:59.000Z

    faults (DP10C) used in the Compression Tests. 88 22 Specimen configuration for Compression Tests. . 89 23 Specimen configuration for Shear Tests, . 92 LIST OF FIGURES (continued) FIGURE PAGE 24 Differential stress versus axial strai n... the motivation for establishing a program of earthquake-risk evaluation and prediction. One approach to earthquake-prediction (mechanistic approach of Higgs, 1 981 ) involves developing a sound understandi ng of the physical processes operative within...

  2. 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

  3. Late Triassic sinistral shear in the East Gobi Fault Zone, Mongolia Laura E. Webb a,

    E-Print Network [OSTI]

    Johnson, Cari

    Late Triassic sinistral shear in the East Gobi Fault Zone, Mongolia Laura E. Webb a, , Cari L for Stratigraphy and Paleontology, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia a b s t r in southeastern Mongolia reveal multiple, distinct intracontinental deformation events postdating late Paleozoic

  4. Late Tertiary paleomagnetic data from Leyte, Philippines: implications for Philippine fault zone motion

    E-Print Network [OSTI]

    Cole, Jay Timothy

    1988-01-01T23:59:59.000Z

    samples were collected from 19 lava, flows (one site per flow) in Leyte and nearby islands to the north. The data collected from these sites were combined with previously reported results I'rom northeastern Mindanao. The paleomagnetic data from Neogene... rocks within or very near the Philippine fault zone on Leyte, Mindanao, Biliran, Maripipi, and Genuruan Islands fall into two populations. Seventeen late Neogene sites (14 normal polarity and 3 reversed polarity) yield a mean direction D = 358. 9', I...

  5. High-definition analysis of fluid-induced seismicity related to the mesoscale hydromechanical properties of a fault zone

    E-Print Network [OSTI]

    Vallée, Martin

    -strain and seismic measurements taken in the fractured damage zone during the pressurization indicated that seismicity is triggered along low-permeable, highly rigid, low-dip angle, mesoscale-inherited fractures where-so-rigid, aseismic, sub- vertical, fault-related fractures. Using a three-dimensional distinct-element representation

  6. 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

  7. Thermal Waters Along The Konocti Bay Fault Zone, Lake County, California- A

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries PvtStratosolarTharaldson Ethanol LLCEnergy InformationOpen

  8. Geomechanical effects on CO{sub 2} leakage through fault zones during large-scale underground injection

    SciTech Connect (OSTI)

    Rinaldi, A.P.; Rutqvist, J.; Cappa, F.

    2013-09-01T23:59:59.000Z

    The importance of geomechanics—including the potential for faults to reactivate during large scale geologic carbon sequestration operations—has recently become more widely recognized. However, notwithstanding the potential for triggering notable (felt) seismic events, the potential for buoyancy-driven CO{sub 2} to reach potable groundwater and the ground surface is actually more important from public safety and storage-efficiency perspectives. In this context, this work extends the previous studies on the geomechanical modeling of fault responses during underground carbon dioxide injection, focusing on the short-term integrity of the sealing caprock, and hence on the potential for leakage of either brine or CO{sub 2} to reach the shallow groundwater aquifers during active injection. We consider stress/strain-dependent permeability and study the leakage through the fault zone as its permeability changes during a reactivation, also causing seismicity. We analyze several scenarios related to the volume of CO{sub 2} injected (and hence as a function of the overpressure), involving both minor and major faults, and analyze the profile risks of leakage for different stress/strain-permeability coupling functions. We conclude that whereas it is very difficult to predict how much fault permeability could change upon reactivation, this process can have a significant impact on the leakage rate. Moreover, our analysis shows that induced seismicity associated with fault reactivation may not necessarily open up a new flow path for leakage. Results show a poor correlation between magnitude and amount of fluid leakage, meaning that a single event is generally not enough to substantially change the permeability along the entire fault length. Consequently, even if some changes in permeability occur, this does not mean that the CO{sub 2} will migrate up along the entire fault, breaking through the caprock to enter the overlying aquifer.

  9. Bay County, Michigan ASHRAE 169-2006 Climate Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions IncBay County, Florida: Energy Resources Jump to:

  10. Association of coal metamorphism and hydrothermal mineralization in Rough Creek fault zone and Fluorspar District, Western Kentucky

    SciTech Connect (OSTI)

    Hower, J.C.; Fiene, F.L.; Trinkle, E.J.

    1983-09-01T23:59:59.000Z

    The ambient coal rank (metamorphism) of the Carboniferous coals in the Western Kentucky coalfield ranges from high volatile A bituminous (vitrinite maximum reflectance up to 0.75% R/sub max/) in the Webster syncline (Webster and southern Union Counties) to high volatile C bituminous (0.45 to 0.60% R/sub max/) over most of the remainder of the area. Anomalous patterns of metamorphism, however, have been noted in coals recovered from cores and mines in fault blocks of the Rough Creek fault zone and Fluorspar District. Coals in Gil-30 borehole (Rough Creek faults, Bordley Quadrangle, Union County) vary with no regard for vertical position, from high volatile C(0.55% R/sub max/) to high volatile A (0.89%R/sub max) bituminous. Examination of the upper Sturgis Formation (Missourian/Virgilian) coals revealed that the higher rank (generally above 0.75% R/sub max/) coals had vein mineral assemblages of sphalerite, twinned calcite, and ferroan dolomite. Lower rank coals had only untwinned calcite. Several sites in Webster County contain various coals (Well (No. 8) to Coiltwon (No. 14)) with vitrinite reflectances up to 0.83% R/sub max/ and associated sphalerite mineralization. Mississippian and Lower Pennsylvanian (Caseyville Formation Gentry coal) coals in the mineralized Fluorspar District have ranks to nearly medium volatile bituminous (1.03% R/sub max/). The regional rank trend exhibited by the fualt zones is generally higher rank than the surrounding areas. Sphalerite mineralization in itself is not unique within Illinois basin coals, but if it was partly responsible for the metamorphism of these coals, then the fluid temperature must have been higher within the above mentioned fault complexes.

  11. Microphysical Controls on the Strength and Transport Properties of Fault Zones

    E-Print Network [OSTI]

    French, Melodie Ellen Lynds

    2014-10-07T23:59:59.000Z

    (Chester and Higgs , 1992; Reches and Lockner , 2010; Reinen et al., 1994; Kohli et al., 2011). Clay-rich fault gouge is both weak and velocity-strengthening at sub-seismic rates, leading to the assumption that it is stable (Byerlee, 1978; Logan... of the San Andreas Fault, Journal of Geophysical Research: Solid Earth, 119, 17771802, doi:10.1002/2013JB010757. Copyright 2014 by the American Geophysical Union. 3 et al., 2010). At seismic velocities, however, experimental studies show that clay- bearing...

  12. Reaction localization and softening of texturally hardened mylonites in a reactivated fault zone, central Argentina

    E-Print Network [OSTI]

    Whitmeyer, Steven J.

    , central Argentina S. J. WHITMEYER1 * AND R. P. WINTSCH2 1 Department of Earth Sciences, Boston University, central Argentina, experienced multiple ductile deformation and faulting events that involved a variety of replacement reactions in a partially open system. Key words: Argentina; reaction localization; reactivation

  13. Protrusion of fore-arc mantle serpentinites together with HP and UHP rocks along major strike-slip fault zones, Northern Subduction Complex, Hispaniola

    E-Print Network [OSTI]

    -slip fault zones, Northern Subduction Complex, Hispaniola Benoit-Michel SAUMUR (bsaum014@uottawa.ca), Kéiko H in the Northern Subduction Complex of Hispaniola. We discuss the origins of the serpentinites and implications and inliers exposing Cretaceous to mid-Eocene basement in Northern Hispaniola are highlighted. Arc volcanic

  14. Characteristics of displacement transfer zones associated with thrust faults / by Arthur Francis Xavier O'Keefe

    E-Print Network [OSTI]

    O'Keefe, Arthur Francis Xavier

    1980-01-01T23:59:59.000Z

    back limb fault and then develops into s. drag fold on the underlying plate. The lower thrust dies by losing displacement until it becomes a fore-limb . hrust in a mino" anticline which plunges out under . he higher thrust (Figure 2). drag olo... is compared with two physical models developed by Gardner and Spang (1973). Their fi. st model involves a conical fold in the upper plate of the lowez- thzust with the point of the cone at the termination of the higher thrust . The fold then opens along...

  15. The Fabric of Clasts, Veins and Foliations within the Actively Creeping Zones of the San Andreas Fault at SAFOD: Implications for Deformation Processes

    E-Print Network [OSTI]

    Sills, David Wayne

    2012-02-14T23:59:59.000Z

    of Committee, Judith Chester Committee Members, Frederick Chester David Schechter Head of Department, Andreas Kronenberg December 2010 Major Subject: Geology iii ABSTRACT The Fabric of Clasts, Veins and Foliations within the Actively... Creeping Zones of the San Andreas Fault at SAFOD: Implications for Deformation Processes. (December 2010) David Wayne Sills, B.S., Sam Houston State University; M.S., Texas A&M University Chair of Advisory Committee: Dr. Judith Chester Recovered...

  16. Jamaica Bay New York's Conflicted Backyard

    E-Print Network [OSTI]

    Columbia University

    Jamaica Bay ­ New York's Conflicted Backyard Kevin Olsen Drew Symposium October 2008 #12;Why Study Jamaica Bay's History? Jamaica Bay has served many uses for the people of New York. At one time or another shoals, mudflats, sand bars, open water (littoral zone), intertidal zones (low and high marshes

  17. Off-fault Damage Associated with a Localized Bend in the North Branch San Gabriel Fault, California

    E-Print Network [OSTI]

    Becker, Andrew 1987-

    2012-08-15T23:59:59.000Z

    Structures within very large displacement, mature fault zones, such as the North Branch San Gabriel Fault (NBSGF), are the product of a complex combination of processes. Off-fault damage within a damage zone and first-order geometric asperities...

  18. Chaotic breccia zones on the Pembroke Peninsula, South Wales: evidence for collapse into voids along dilational faults

    E-Print Network [OSTI]

    Woodcock, N. H.; Miller, A. V. M.; Woodhouse, C. D.

    2014-01-01T23:59:59.000Z

    .1 Terminology 109 110 The studied zones contain a range of breccias, particularly some with very large clasts (over 111 1 metre in diameter) referred to informally as megabreccias. Sedimentologically, such large-112 clast breccias would be termed boulder...

  19. 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...

  20. The effect of fractures, faults, and sheared shale zones on the hydrology of Bear Creek Burial Grounds A-South, Oak Ridge, Tennessee

    E-Print Network [OSTI]

    Hollon, Dwight Mitchell

    1997-01-01T23:59:59.000Z

    Previous hydrologic models of flow in Bear Creek Valley have presented lateral flow as occurring through the Nolichucky Shale in parallel to strike fractures within thin carbonate beds; the effects of faults were not considered. This study presents...

  1. The effect of fractures, faults, and sheared shale zones on the hydrology of Bear Creek Burial Grounds A-South, Oak Ridge, Tennessee 

    E-Print Network [OSTI]

    Hollon, Dwight Mitchell

    1997-01-01T23:59:59.000Z

    Previous hydrologic models of flow in Bear Creek Valley have presented lateral flow as occurring through the Nolichucky Shale in parallel to strike fractures within thin carbonate beds; the effects of faults were not considered. This study presents...

  2. andreas fault system: Topics by E-print Network

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

    system Sontag, Eduardo 23 The San Andreas Fault In The San Francisco Bay Area, California: A Geology Fieldtrip Guidebook To Selected Stops On Public Lands CiteSeer Summary:...

  3. Induced seismicity within geologic carbon sequestration projects: Maximum earthquake magnitude and leakage potential from undetected faults

    E-Print Network [OSTI]

    Mazzoldi, A.P.

    2014-01-01T23:59:59.000Z

    data from reservoir and outcrop samples suggest a general decrease in fault-zone permeability with increasing shale

  4. Fault interaction near Hollister, California

    SciTech Connect (OSTI)

    Mavko, G.M.

    1982-09-10T23:59:59.000Z

    A numerical model is used to study fault stress slip near Hollister, California. The geometrically complex system of interacting faults, including the San Andreas, Calaveras, Sargent, and Busch faults, is approximated with a two-dimensional distribution of short planar fault segments in an elastic medium. The steady stress and slip rate are simulated by specifying frictional strength and stepping the remote stress ahead in time. The resulting computed fault stress is roughly proportional to the observed spatial density of small earthquakes, suggesting that the distinction between segments characterized by earthquakes and those with aseismic creep results, in part, from geometry. A nonsteady simulation is made by introducing, in addition, stress drops for individual moderate earthquakes. A close fit of observed creep with calculated slip on the Calaveras and San Andreas faults suggests that many changes in creep rate (averaged over several months) are caused by local moderate earthquakes. In particular, a 3-year creep lag preceding the August 6, 1979, Coyote Lake earthquake on the Calaveras fault seems to have been a direct result of the November 28, 1974, Thanksgiving Day earthquake on the Busch fault. Computed lags in slip rate preceding some other moderate earthquakes in the area are also due to earlier earthquakes. Although the response of the upper 1 km of the fault zone may cause some individual creep events and introduce delays in others, the long-term rate appears to reflect deep slip.

  5. Oil and Gas CDT Bots in Rocks: Intelligent Rock Deformation for Fault Rock

    E-Print Network [OSTI]

    Henderson, Gideon

    Heriot-Watt University, Institute of Petroleum Engineering Supervisory Team · Dr Helen Lewis, Heriot://www.pet.hw.ac.uk/staff-directory/jimsomerville.htm Key Words Nano/Micro sensors; faults; fault zones; geomechanics; rock mechanics; rock deformation-deformed equivalent, a different lab-deformed example and a geomechanical simulation of a fault zone showing permanent

  6. 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...

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

    E-Print Network [OSTI]

    Savage, Heather M.

    Collateral damage: Evolution with displacement of fracture distribution and secondary fault strands in fault damage zones Heather M. Savage1,2 and Emily E. Brodsky1 Received 22 April 2010; revised 10 of fracture distributions as a function of displacement to determine whether damage around small and large

  8. university-logo Bayes's theorem

    E-Print Network [OSTI]

    McCullagh, Peter

    university-logo Bayes's theorem Poisson processes Improper mixtures and Bayes's theorem Peter Mc McCullagh Improper mixtures #12;university-logo Bayes's theorem Poisson processes Outline 1 BayesCullagh Improper mixtures #12;university-logo Bayes's theorem Poisson processes Improper mixtures Bayes's theorem

  9. 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.

  10. San Diego Bay Bibliography

    E-Print Network [OSTI]

    Brueggeman, Peter

    1994-01-01T23:59:59.000Z

    oil-fired steam-electric stations (South Bay, Silvergate, and Encina); their pH adjustment and clarification, sludge

  11. RICHMOND BAY CAMPUS RICHMOND BAY CAMPUS

    E-Print Network [OSTI]

    Lee, Jason R.

    will be excavated in advance of Phase 1 development. · Other soil contamination at the RFS to be managed CAMPUS #12;RICHMOND BAY CAMPUS #12;RICHMOND BAY CAMPUS Multi-Modal Access · Transportation Demand Management program would be in place prior to completion of first phase development, with priority

  12. 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.

  13. The Owens Valley Fault Zone Eastern California and Surface Faulting...

    Open Energy Info (EERE)

    base of the Alabama Hills and follows the floor of Owens Valley northward to the Poverty Hills, where it steps 3 km to the left and continues northwest across Crater Mountain...

  14. The Owens Valley Fault Zone Eastern California and Surface Faulting

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <MaintainedInformation 2EnergyCityGreen DataThe NeedlesThe

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

    E-Print Network [OSTI]

    Cetin, Hasan

    1991-01-01T23:59:59.000Z

    + t '+ + + ~et t 30 mt ~ 39 ~ 40 mt ~ 49 a 50 mt 59 060 m& 69 O20 mts29 26 26 ASZ ? ANNA SEISMIC ZONE ES ? ENOLA SWARM KRF ? KENTUCKY RIVER FAULT MF ? MEERS FAULT MU ? MONROE UPLIFT NM ? NEW MADRID NU ? NEMAHA UPLIFT PSD ? PIERRE, SOUTH DAKOTA WVF...

  16. Late quaternary activity of the Laguna Salada fault in northern Baja California, Mexico

    E-Print Network [OSTI]

    Mueller, Karl

    northwest-striking dextral and oblique-slip faults. These include the Imperial, Cerro Prieto, Cucapa, Im- perial, and Cerro Prieto dextral faults. Re- straining stepovers along active dextral fault zones present in the Imperial and Mexicali Valleys include the Brawley and Cerro Pri- eto spreading centers (Fig

  17. 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) WGS’1984 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

  18. The hunt for theta13 at the Daya Bay nuclear power plant

    E-Print Network [OSTI]

    Wei Wang; for the Daya Bay collaboration

    2009-10-23T23:59:59.000Z

    The Daya Bay reactor neutrino experiment is located at the Daya Bay nuclear power plant in Shenzhen, China. The experiment deploys eight "identical" antineutrino detectors to measure antineutrino fluxes from six 2.9 GW_{th} reactor cores in three underground experimental halls at different distances. The target zone of the Daya Bay detector is filled with 20 t 0.1% Gd doped LAB liquid scintillator. The baseline uncorrelated detector uncertainty is ~0.38% using current experimental techniques. Daya Bay can reach a sensitivity of <0.01 to $sin^2 2theta_{13}$ with baseline uncertainties after 3 years of data taking.

  19. The Starr fault system of southeastern Ohio

    SciTech Connect (OSTI)

    Brannock, M.C. (Qauker State Corp., Belpre, OH (United States))

    1993-08-01T23:59:59.000Z

    The Starr fault system is a series of east-west-trending faults located in southeastern Ohio. This fault system was discovered by mapping the anomalous sedimentary sequence of the [open quotes]Big Lime[close quotes]. The Big Lime is a driller's term for the stratigraphic section that includes the Lower Devonian Onondaga through Middle Silurian Lockport formations. The use of trend-surface analysis identified the probable fault orientation, which was then verified by seismic. The system is a series of high-angle faults, originating in the Precambrian, that occur along a narrow corridor traversing several townships. Analysis of the sedimentary section preserved by faulting indicates fault movement after the deposition of the Bass Island Formation, which was followed by a regional unconformity that removed the Bass Islands and a part of the upper Salina Formation. The Onondaga subsequently was deposited, masking fault movement evidence in the shallower formations. Some minor movement occurred later, as evidenced by the expansion in the Devonian shale sequence. The geometry of the fault system and other data suggest a pattern similar to the Albio-Scipio field of southern Michigan. A group of wells were drilled to test the Ordovician Trenton and Black River formations to determine the existence of secondary dolomite, which could be a potential reservoir. Secondary dolomite was encountered, but no commercial hydrocarbons were found in either the Trenton or Black River. Other formations produced hydrocarbons and water from fractured zones that were not known for this behavior. Other probable fault systems in southern Ohio, identified by using the same mapping techniques, may provide deeper targets for future drilling.

  20. San Diego Bay Bibliography

    E-Print Network [OSTI]

    Brueggeman, Peter

    1994-01-01T23:59:59.000Z

    South Bay Power Plant, San Diego, California. Woodward-Station B Power Plant in San Diego, California, operated byPower Plant Receiving Water Monitoring Program. Prepared for the California

  1. Microstructures and Rheology of a Limestone-Shale Thrust Fault 

    E-Print Network [OSTI]

    Wells, Rachel Kristen

    2011-02-22T23:59:59.000Z

    thick calcite and shale shear zone suggest that calcite, not shale, controlled the rheology of the shear zone rocks. While shale deformed brittley, plasticity-induced fracturing in calcite resulted in ultrafine-grained (<1.0 ?m) fault rocks that deformed...

  2. Post-Cretaceous faulting at head of Mississippi embayment

    SciTech Connect (OSTI)

    Nelson, W.J. (Illinois State Geological Survey, Champaign, IL (United States)); Harrison, R.W. (Geological Survey, Reston, VA (United States))

    1993-03-01T23:59:59.000Z

    Recent mapping in southernmost Illinois and southeastern Missouri has revealed numerous faults that displace Cretaceous and Tertiary strata. Units as young as the Pliocene-Pleistocene( ) Mounds Gravel are deformed; some faults possibly displace Quaternary sediments. The faults strike northeast, dip nearly vertically, and exhibit characteristics of dextral strike-slip. Pull-apart grabens occur along right-stepping fault strands, they contain chaotically jumbled blocks of Paleozoic, Cretaceous and Tertiary rocks downdropped as much as 800 m relative to wall rocks. Faults at the head of the Mississippi embayment probably originated during Cambrian rifting (Reelfoot rift) and have a long, complex history of reactivation under different stress fields. Some faults are on strike with faults in the New Madrid seismic zone. Kinematics of post-Cretaceous displacements fit the contemporary stress regime of ENE-WSW compression. Similar fault orientations and kinematics, as well as close proximity, suggest a close link between faulting at the head of the embayment and ongoing tectonism in the New Madrid seismic zone.

  3. Nonlinear Wavelet Shrinkage With Bayes Rules and Bayes Brani Vidakovic

    E-Print Network [OSTI]

    West, Mike

    Nonlinear Wavelet Shrinkage With Bayes Rules and Bayes Factors Brani Vidakovic 1 #12; Brani, associate editor, and the two anonymous referees for insightful comments. 2 #12; Wavelet shrinkage of denoising data. Shrinking wavelet coefficients was proposed from several optimality criteria

  4. Fault Controlled | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: EnergyExolisFairway,FarmersFastcap SystemsShear Zone:Fault

  5. AGU Monograph, Plate Boundary Zones, in press. Page 1 Crustal Block Rotations and Plate Coupling

    E-Print Network [OSTI]

    McCaffrey, Robert

    AGU Monograph, Plate Boundary Zones, in press. Page 1 Crustal Block Rotations and Plate Coupling that considering both block rotations and fault locking significantly improves the fit to the data over models by locking on #12;AGU Monograph, Plate Boundary Zones, in press. Page 2 block-bounding faults and apply

  6. Chesapeake Bay Restoration Act (Maryland)

    Broader source: Energy.gov [DOE]

    This legislation sets limits on development near Chesapeake Bay as well as on dredging and the deposition of dredged material into the bay. The legislation establishes the Cox Creek Citizens...

  7. Experimental wrench faulting at confining pressure

    E-Print Network [OSTI]

    Bartlett, Wendy Louise

    1980-01-01T23:59:59.000Z

    along the precut, resembling the "flower or palm tree" structure noted by Sylvester and Smith (1976), in the Salton Sea area, California. The bounding fault above the down-dropped block dips at a lower angle to the forcing block-veneer interface than..., the oeometries, ori- gins, and sequence of development of structural elements comprising the fault zones. Specimens (2. 8 or 3. 4 x 3. 4 x 9. 4 cm) are loaded parallel to their longest dimension, at an average displacement rate -3 -1 of 7. 3 x 10 cm sec...

  8. Earthquake Rupture at Focal Depth, Part I: Structure and Rupture of the Pretorius Fault, TauTona Mine, South Africa

    E-Print Network [OSTI]

    Ze'ev, Reches

    Tona Mine, South Africa V. HEESAKKERS,1,2 S. MURPHY,1,3 and Z. RECHES 1 Abstract--We analyze the structure of the Archaean Pretorius fault in TauTona mine, South Africa, as well as the rupture-zone that recently, South Africa 2011, this volume). Key words: Brittle faulting, fault reactivation, earthquake mechanics

  9. Cedar Bay overview

    SciTech Connect (OSTI)

    Garvey, J.F.

    1994-12-31T23:59:59.000Z

    The Cedar Bay Cogeneration Facility is located on the north side of Jacksonville, Florida adjacent to the Broward River and Eastport Road. The facility is co-located on a site with the Seminole Kraft Paper Mill. The facility is owned by Cedar Bay Generating Company (CBGC) Limited Partnership, managed by US Generating Company and Operated by US Operating Services Company. The engineering, procurement and construction (EPC) of the facility was contracted through Multipower Associates. Multipower is a joint venture comprised of Pyropower Corporation, National Power Development, Inc. (NPDI) and the Pritchard Corporation. Black & Veatch provided turnkey construction management services and the prime contractor was H.B. Zachry.

  10. 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.

  11. Fault tolerant pulse synchronization 

    E-Print Network [OSTI]

    Deconda, Keerthi

    2009-05-15T23:59:59.000Z

    FFC n=4 orig alg n=4 ft alg n=7 orig alg n=7 ft alg n=10 orig alg n=10 ft alg 24 (a) n=4, f=1. (b) n=7, f=2. Fig. 5: Convergence Time with No Jump faults. 0 50 100 150 200 250 70 100 250 500 Tim e to co nv erg e FFC orig alg: no faults... orig alg: NoJump faults ft alg:NoJump faults 0 50 100 150 200 250 300 350 400 450 70 100 250 500 Tim e to co nv erg e FFC orig alg: no faults orig alg: NoJump faults ft alg:NoJump faults 25 (c) n=10, f=3. Fig. 5 (Continued) Fig. 5(a...

  12. Characterization of Quaternary and suspected Quaternary faults, regional studies, Nevada and California

    SciTech Connect (OSTI)

    Anderson, R.E.; Bucknam, R.C.; Crone, A.J.; Haller, K.M.; Machette, M.N.; Personius, S.F.; Barnhard, T.P.; Cecil, M.J.; Dart, R.L.

    1995-12-31T23:59:59.000Z

    This report presents the results of geologic studies that help define the Quaternary history of selected faults in the region around Yucca Mountain, Nevada. These results are relevant to the seismic-design basis of a potential nuclear waste repository at Yucca Mountain. The relevancy is based, in part, on a need for additional geologic data that became apparent in ongoing studies that resulted in the identification of 51 relevant and potentially relevant individual and compound faults and fault zones in the 100-km-radius region around the Yucca Mountain site. Geologic data used to characterize the regional faults and fault zones as relevant or potentially relevant seismic sources includes age and displacement information, maximum fault lengths, and minimum distances between the fault and the Yucca Mountain site. For many of the regional faults, no paleoseismic field studies have previously been conducted, and age and displacement data are sparse to nonexistent. In November 1994, the Branch of Earthquake and Landslide Hazards entered into two Memoranda of Agreement with the Yucca Mountain Project Branch to conduct field reconnaissance, analysis, and interpretation of six relevant and six potentially relevant regional faults. This report describes the results of study of those faults exclusive of those in the Pahrump-Stewart Valley-Ash Meadows-Amargosa Valley areas. We also include results of a cursory study of faults on the west flank of the Specter Range and in the northern part of the Last Chance Range. A four-phase strategy was implemented for the field study.

  13. 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.

  14. Localization instability and the origin of regularly-spaced faults in planetary lithospheres

    E-Print Network [OSTI]

    Montési, Laurent Gilbert Joseph, 1973-

    2002-01-01T23:59:59.000Z

    Brittle deformation is not distributed uniformly in planetary lithospheres but is instead localized on faults and ductile shear zones. In some regions such as the Central Indian Basin or martian ridged plains, localized ...

  15. Chesapeake Bay Preservation Programs (Multiple States)

    Broader source: Energy.gov [DOE]

    The Chesapeake Bay Program is a unique regional partnership that has led and directed the restoration of the Chesapeake Bay since 1983. The Chesapeake Bay Program partners include the states of...

  16. Oil and Gas CDT Predicting fault permeability at depth: incorporating natural

    E-Print Network [OSTI]

    Henderson, Gideon

    Oil and Gas CDT Predicting fault permeability at depth: incorporating natural permeability controls on fluid flow in oil and gas reservoirs. Fault zones are composed of many deformation elements will receive 20 weeks bespoke, residential training of broad relevance to the oil and gas industry: 10 weeks

  17. Tertiary strike-slip faulting in southeastern Mongolia and implications for Asian tectonics

    E-Print Network [OSTI]

    Johnson, Cari

    Tertiary strike-slip faulting in southeastern Mongolia and implications for Asian tectonics L Geologic maps have long portrayed the Late Cretaceous­Recent geologic history of southeastern Mongolia of the East Gobi basin in southeastern Mongolia (Figs. 1 and 2). This corridor, the East Gobi Fault Zone (EGFZ

  18. Fault simulation and test generation for small delay faults

    E-Print Network [OSTI]

    Qiu, Wangqi

    2007-04-25T23:59:59.000Z

    Delay faults are an increasingly important test challenge. Traditional delay fault models are incomplete in that they model only a subset of delay defect behaviors. To solve this problem, a more realistic delay fault model has been developed which...

  19. Optimal fault location

    E-Print Network [OSTI]

    Knezev, Maja

    2009-05-15T23:59:59.000Z

    are triggered. Protection system consisting of protection relays and circuit breakers (CBs) will operate in order to de-energize faulted line. Different Intelligent Electronic Devices (IEDs) located in substations for the purpose of monitoring... in the control center by an operator who will mark fault event in a spreadsheet and inform other staff responsible for dealing with fault analysis and repair such as protection group or maintenance respectively. Protective relaying staff will be ready...

  20. Optimal fault location

    E-Print Network [OSTI]

    Knezev, Maja

    2008-10-10T23:59:59.000Z

    are triggered. Protection system consisting of protection relays and circuit breakers (CBs) will operate in order to de-energize faulted line. Different Intelligent Electronic Devices (IEDs) located in substations for the purpose of monitoring... in the control center by an operator who will mark fault event in a spreadsheet and inform other staff responsible for dealing with fault analysis and repair such as protection group or maintenance respectively. Protective relaying staff will be ready...

  1. Field's Point Wastewater Treatment Facility (Narragansett Bay...

    Open Energy Info (EERE)

    Field's Point Wastewater Treatment Facility (Narragansett Bay Commission) Jump to: navigation, search Name Field's Point Wastewater Treatment Facility (Narragansett Bay Commission)...

  2. Richmond Bay Campus: Project Update

    E-Print Network [OSTI]

    Lee, Jason R.

    Coordinate with City of Richmond South Shoreline Area planning #12;Richmond Bay Campus Vision A stateRichmond Bay Campus: Project Update Prepared for the Richmond City Council October 1, 2013 #12 and UCB · City of Richmond Updates · Summary · Questions & Answers #12;LBNL Project Update #12;University

  3. 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.

  4. 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...

  5. Land Cover, Land Use of twoLand Cover, Land Use of two bioluminescent bays in Puerto Ricobioluminescent bays in Puerto Ricobioluminescent bays in Puerto Ricobioluminescent bays in Puerto Rico

    E-Print Network [OSTI]

    Gilbes, Fernando

    Bay inin ViequesVieques andandLandLand aroundaround PuertoPuerto MosquitoMosquito BayBay inin ViequesVieques andand LaLa PargueraParguera BioluminescenceBioluminescence BayBay inin Lajas,Lajas, PuertoPuerto RicoBioluminescent BayBay hashas shownshown aa decreasedecrease inin itsits bioluminescencebioluminescence byby

  6. 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.

  7. Modeling of coulpled deformation and permeability evolution during fault reactivation induced by deep underground injection of CO2

    SciTech Connect (OSTI)

    Cappa, F.; Rutqvist, J.

    2010-06-01T23:59:59.000Z

    The interaction between mechanical deformation and fluid flow in fault zones gives rise to a host of coupled hydromechanical processes fundamental to fault instability, induced seismicity, and associated fluid migration. In this paper, we discuss these coupled processes in general and describe three modeling approaches that have been considered to analyze fluid flow and stress coupling in fault-instability processes. First, fault hydromechanical models were tested to investigate fault behavior using different mechanical modeling approaches, including slip interface and finite-thickness elements with isotropic or anisotropic elasto-plastic constitutive models. The results of this investigation showed that fault hydromechanical behavior can be appropriately represented with the least complex alternative, using a finite-thickness element and isotropic plasticity. We utilized this pragmatic approach coupled with a strain-permeability model to study hydromechanical effects on fault instability during deep underground injection of CO{sub 2}. We demonstrated how such a modeling approach can be applied to determine the likelihood of fault reactivation and to estimate the associated loss of CO{sub 2} from the injection zone. It is shown that shear-enhanced permeability initiated where the fault intersects the injection zone plays an important role in propagating fault instability and permeability enhancement through the overlying caprock.

  8. Offshore wind resources from satellite SAR Charlotte Bay Hasager, Merete Bruun Christiansen, Morten Nielsen,

    E-Print Network [OSTI]

    Offshore wind resources from satellite SAR Charlotte Bay Hasager, Merete Bruun Christiansen, Morten ocean wind maps were described. For offshore wind resource estimation based on satellite observations and the near-coastal zone (up to 40 km offshore) is not mapped. In contrast, Envisat ASAR wind maps can

  9. Acoustic characteristics of bay bottom sediments in Lavaca Bay, TX

    E-Print Network [OSTI]

    Patch, Mary Catherine

    2005-08-29T23:59:59.000Z

    acoustic return of the bay bottom, and 2) strong, shallow reflectors??surface strong, mounds, buried strong, andburied multiples, which describe strong acoustic returns in the upper 5 m of stratigraphy. Within the lower package, four categories were...

  10. Model for isopaching Jurassic-age Norphlet Formation in Mobile Bay, Alabama area

    SciTech Connect (OSTI)

    Torres, L.F.

    1989-03-01T23:59:59.000Z

    Deep gas was discovered in the Norphlet Sandstone of Mobile Bay Alabama in 1979. Sixteen wells, of which Exxon Company, U.S.A. has had an interest in eight, have tested gas from depths greater than 20,000 ft and at an average rate of 19 million ft/sub 3/ of gas per day. The dominant structural features in Mobile Bay are large east-west-trending salt-supported anticlines associated with salt pull-apart listric normal faulting. Throws on these faults measure up to 1000 ft. Individual structures have dimensions as large as 15 mi in an east-west strike direction and 8 mi in a north-south dip direction. The Jurassic age (Callovian) Norphlet of Mobile Bay is characterized by eolian dune sand deposits up to 700 ft thick. An important factor affecting future development drilling is the accurate prediction of reservoir thickness. This presentation shows that an integrated study of seismic and well data has facilitated the development of a geological model for isopaching the Norphlet Formation. The isopach exhibits a strong north-northwest-south-southeast orientation of parallel thicks and thins. These trends are believed to be the result of original eolian deposition of complex linear dunes in the Norphlet Sandstone. The major east-west structural grain of faults and anticlines overprints this preserved depositional trend.

  11. 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.

  12. 2001 TRAFFIC ZONE BOUNDARIES Zone Numbers

    E-Print Network [OSTI]

    Toronto, University of

    2001 TRAFFIC ZONE BOUNDARIES Zone Numbers & Detailed Definitions #12;2001 TRAFFIC ZONE BOUNDARIES of Toronto Joint Program in Transportation January 2003 #12;PREFACE This report presents the 2001 traffic zone numbers by local municipalities in the 2001 TTS survey area. The second part presents detailed

  13. Marcus Hutter -1 -Online Prediction Bayes versus Experts Online Prediction

    E-Print Network [OSTI]

    Hutter, Marcus

    Marcus Hutter - 1 - Online Prediction ­ Bayes versus Experts Online Prediction: Bayes versus;Marcus Hutter - 2 - Online Prediction ­ Bayes versus Experts Table of Contents · Sequential/online prediction: Setup · Bayesian Sequence Prediction (Bayes) · Prediction with Expert Advice (PEA) · PEA Bounds

  14. 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

    displacement along strike . . . . . . . . . . . . 56 Figure 17 Horizontal shortening 1n the direction of tectonic transport along strike of the Red Rocks fault with Elliot's ( 1976) line 60 F1gure 18: Shorten1ng along strike of precuts 1n clay model 2... with Elliot's ( 1976) line . 61 F1gure 19 The approx1mate position of the Red Rocks fault in O'Keefe's ( 1980) three end-member class1ficat1on of displacement transfer zones . . . . . . . . . . . . . . . . . . . 64 LIST OF TABLES Table 1: Stratigraphic...

  15. 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...

  16. 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.

  17. Fault tolerant linear actuator

    DOE Patents [OSTI]

    Tesar, Delbert

    2004-09-14T23:59:59.000Z

    In varying embodiments, the fault tolerant linear actuator of the present invention is a new and improved linear actuator with fault tolerance and positional control that may incorporate velocity summing, force summing, or a combination of the two. In one embodiment, the invention offers a velocity summing arrangement with a differential gear between two prime movers driving a cage, which then drives a linear spindle screw transmission. Other embodiments feature two prime movers driving separate linear spindle screw transmissions, one internal and one external, in a totally concentric and compact integrated module.

  18. 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.

  19. andreas fault zone: Topics by E-print Network

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

    Andreas Fichtner a,(n) Geosciences Websites Summary: Technical University, Istanbul, Turkey d Nancy School of Geology, Computer Science Department, Nancy, France which shapes the...

  20. Development of Hydrologic Characterization Technology of Fault Zones

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2009-01-01T23:59:59.000Z

    model for fissured fractured reservoir, Soc. Pet. Eng. J. ,flow simulations in fractured reservoirs, Report LBL-15227,behavior of naturally fractured reservoirs, Soc. Pet. Eng.

  1. Development of Hydrologic Characterization Technology of Fault Zones

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2009-01-01T23:59:59.000Z

    R.A. Everitt, C.D. Martin, P.M. Thompson) AECL-10560,COG-94- AECL, 1994b. Environmental Impact Statement on thes Nuclear Fuel Waste. AECL -10711, COG-93-1, 496p. Anderson,

  2. Enterprise Zone Incentives (Florida)

    Broader source: Energy.gov [DOE]

    Enterprise Zone Incentives encourage business growth within certain geographic areas targeted for economic revitalization. Businesses which create jobs within a designated zone are eligible for...

  3. Fault Tolerant Quantum Filtering and Fault Detection for Quantum Systems

    E-Print Network [OSTI]

    Qing Gao; Daoyi Dong; Ian R. Petersen

    2015-04-26T23:59:59.000Z

    This paper aims to determine the fault tolerant quantum filter and fault detection equation for a class of open quantum systems coupled to laser fields and subject to stochastic faults. In order to analyze open quantum systems where the system dynamics involve both classical and quantum random variables, a quantum-classical probability space model is developed. Using a reference probability approach, a fault tolerant quantum filter and a fault detection equation are simultaneously derived for this class of open quantum systems. An example of two-level open quantum systems subject to Poisson-type faults is presented to illustrate the proposed method. These results have the potential to lead to a new fault tolerant control theory for quantum systems.

  4. Geology and hydrogeology of the Edwards Aquifer Transition Zone, Bexar County, Texas

    E-Print Network [OSTI]

    Neathery, Jeffrey Stephen

    1989-01-01T23:59:59.000Z

    into the Edwards Aquifer (Figure 5). Rainfall and stream flow on the Balcones Fault Zone/Transition Zone also contributes to the water migrating to and recharging the Edwards Aquifer. Water 14 OKLAHOMA ARKANSAS TEXAS l a g/ CENTRAL I I(l TEXAS I I PLA M I... WATER LINE Glen Roee Llmeetone aneltlon Z one F Oem ~ lion FLOWING ARTESIAN WELL nanna fa an r aaneltlon Z one DWA AQUIFER EDWARDS PLATEAU BALCONES ESCARPMENT Glen Roe e Lime alone ALCONE FAULT ZONE Generalized cross section...

  5. 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)

    2010-02-23T23:59:59.000Z

    An apparatus and program product 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.

  6. 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.

  7. Regional fault pattern study - Sonam/Ajapa area offshore Western Niger Delta

    SciTech Connect (OSTI)

    Kanu, K.A.; Glass, J.E.; Okoro, P.C. [Chevron Nigeria Ltd., Lagos (Nigeria)] [and others

    1995-08-01T23:59:59.000Z

    A total of 900 km{sup 2} of high quality 3-D data was used to interpret structural trends: an inner trend containing the Mefa, Meji and Ajapa oil fields and a younger outer trend containing the large Sonam condensate field. Each trend is bounded by a large, regional down-to-the-coast fault system on the northeast and its associated counter-regional fault to the southwest. Hydrocarbon accumulations are contained within rollover anticlines adjacent to the main seaward-dipping fault trends. However, our data shows that structural geometries within each trend are highly three-dimensional. Anticlinal end closure is achieved by changes in fault detachment level and displacement which generally occur near major fault junctions. Thus, significant accumulations are associated with first-order high-relief accommodation zones. In the absence of such first-order closure, we cannot rely upon the systems of relatively small faults that occur on seaward dipping flanks and in areas of crestal collapse. Detailed 3-D mapping, supported by drilling results, shows that such faults do not link strongly together, thereby allowing leakage of hydrocarbons mound fault tips and up relay ramps between faults.

  8. Empirical Bayes Estimation of Reliability

    E-Print Network [OSTI]

    Pensky, Marianna

    types of equipment relies on statistical inference about char- acteristics of reliabilityEmpirical Bayes Estimation of Reliability Introduction Assessment of the reliability of various such as reliability function, mean lifetime of the devices, or failure rate. Gen- eral techniques of statistical

  9. A photoelastic study of the effects of surface geometry on fault movements

    E-Print Network [OSTI]

    Barber, David Williams

    1973-01-01T23:59:59.000Z

    , California, showing two en-echelon segments separated by complex zone of subsidiary faulting (after Vedder and Wallace, 1970, sheet 2). Solid lines are specific photogeologic features associated with fault- ing while dashed lines are inferred from less... lines, and os, the least compressive stress, by dashed lines. 24 stresses are higher on the two en-echelon fault segments than on the ramp. The external load is about 0. 07 bars and it i. s increasing sharply. Stored strain energy in the ramp area...

  10. Not Excavated (still on site) As All data Zone 1 Zone 2 Zone 3 Zone 4

    E-Print Network [OSTI]

    .12 11.68 10.29 AL: 50 xrf_allzones_20060810 Page 1 of 174notx summary #12;Mo All data Zone 1 Zone 2 Zone.35 2.36 2.37 U95: 57.95 62.41 60.56 51.63 70.50 U99: 58.98 64.27 62.34 52.75 74.38 AL: 550 xrf99: 12.48 AL: xrf_allzones_20060810 Page 3 of 174x summary #12;Mo All data Zone 1 Zone 2 Zone 3 Zone

  11. Stress and fault rock controls on fault zone hydrology, Coso geothermal

    Open Energy Info (EERE)

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

  12. MODELING THE FATE AND TRANSPORT OF ATRAZINE IN THE UPPER CHESAPEAKE BAY

    E-Print Network [OSTI]

    Frei, Allan

    for agrochemicals in the Upper Chesapeake Bay. Keywords: Chesapeake Bay, hydrodynamic model, atrazine, photolysis

  13. Influence of Transcontinental arch on Cretaceous listric-normal faulting, west flank, Denver basin

    SciTech Connect (OSTI)

    Davis, T.L.

    1983-08-01T23:59:59.000Z

    Seismic studies along the west flank of the Denver basin near Boulder and Greeley, Colorado illustrate the interrelationship between shallow listric-normal faulting in the Cretaceous and deeper basement-controlled faulting. Deeper fault systems, primarily associated with the Transcontinental arch, control the styles and causative mechanisms of listric-normal faulting that developed in the Cretaceous. Three major stratigraphic levels of listric-normal faulting occur in the Boulder-Greeley area. These tectonic sensitive intervals are present in the following Cretaceous formations: Laramie-Fox Hills-upper Pierre, middle Pierre Hygiene zone, and the Niobrara-Carlile-Greenhorn. Documentation of the listric-normal fault style reveals a Wattenberg high, a horst block or positive feature of the greater Transcontinental arch, was active in the east Boulder-Greeley area during Cretaceous time. Paleotectonic events associated with the Wattenberg high are traced through analysis of the listric-normal fault systems that occur in the area. These styles are important to recognize because of their stratigraphic and structural influence on Cretaceous petroleum reservoir systems in the Denver basin. Similar styles of listric-normal faulting occur in the Cretaceous in many Rocky Mountain foreland basins.

  14. Background Bayes Factor Simulation Study BF And PPP Using Bayes Factors for Model Selection in

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Background Bayes Factor Simulation Study BF And PPP Using Bayes Factors for Model Selection in High Study BF And PPP Model Comparison in Astrophysics Nested models (line detection in spectral analysis" to formally compare or select a model. #12;Background Bayes Factor Simulation Study BF And PPP Spectral

  15. Recent Results From The Daya Bay Experiment

    E-Print Network [OSTI]

    Chao Zhang; for the Daya Bay Collaboration

    2015-01-20T23:59:59.000Z

    The Daya Bay reactor neutrino experiment has observed the disappearance of electron antineutrinos from nuclear reactors at $\\sim$kilometer baselines. The relative measurement of the $\\bar\

  16. Recent Results From The Daya Bay Experiment

    E-Print Network [OSTI]

    Zhang, Chao

    2015-01-01T23:59:59.000Z

    The Daya Bay reactor neutrino experiment has observed the disappearance of electron antineutrinos from nuclear reactors at $\\sim$kilometer baselines. The relative measurement of the $\\bar\

  17. Recent Sediments of Monterey Bay, California

    E-Print Network [OSTI]

    Yancey, T. E.

    1968-01-01T23:59:59.000Z

    metamorphic ciscan in the Salinas basin. The Salinian whichstations, The Salinas Salinas Basin all water basin canof the Salinas Valley Range, drainage and basin. N BAY SCALE

  18. Alternative Energy Zone (Ohio)

    Broader source: Energy.gov [DOE]

    Ohio's Alternative Energy Zones are made possible through Ohio's Senate Bill 232, which reduced taxes on alternative energy projects. The Alternative Energy Zones are designated on a county-by...

  19. altona bay st: Topics by E-print Network

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

    stochastic planning. 1 Introduction Dekhtyar, Alexander 83 BAY AREA PARK RELATIONAL CREEK Computer Technologies and Information Sciences Websites Summary: BAY AREA PARK CODD...

  20. admiralty bay antarctica: Topics by E-print Network

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

    E. Distefano; S. Messina; G. Cutispoto 2008-07-18 103 BAY AREA PARK RELATIONAL CREEK Computer Technologies and Information Sciences Websites Summary: BAY AREA PARK CODD...

  1. apalachicola bay usa: Topics by E-print Network

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

    of 192 NAME: Habitat Restoration in Kaneohe Bay, Hawaii LOCATION: Kaneohe Bay, County of Honolulu, Hawaii Engineering Websites Summary: ACRES: 13 acres coral reef...

  2. ariake bay japan: Topics by E-print Network

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

    Bay: Episodic growth of the Laurentian mantle keel Geosciences Websites Summary: Seismic imaging of the lithosphere beneath Hudson Bay: Episodic growth of the Laurentian...

  3. Bay Bridge Lights Presentation prepared by Zoon Engineering

    Energy Savers [EERE]

    2015 BAY BRIDGE LIGHTS Presentation prepared by Zoon Engineering Presentation Outline Lighting of the New East Span of the Bay Bridge Brief Over view Lighting Facts ...

  4. 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.

  5. Fault Current Limiters

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy Chinaof EnergyImpactOnSTATEMENT OF DAVID GEISEREnergy1DNVDOE'sUAfter 12Fault

  6. 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 ...

  7. Testing for fault activity at Yucca Mountain, Nevada, using independent GPS results from the BARGEN network

    E-Print Network [OSTI]

    Blewitt, Geoffrey

    Mountain (YM) nuclear waste repository, the United States Department of Energy has funded the installation Zone (ECSZ) fault parameters produces an unreasonably deep locking depth of $30 km for the Death Valley a strain rate of 17.0 ± 1.8 ns/yr, marginally higher than our ECSZ model predicts (13.9 ± 0.7 ns

  8. 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.

  9. 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).

  10. ARRA Proposed Award: Retrofit Bay Area

    E-Print Network [OSTI]

    ARRA Proposed Award: Retrofit Bay Area Counties of Alameda, Contra Costa, Marin, San Francisco per year Prime contractor: Association of Bay Area Governments (ABAG) Sub contractors: Alameda County Waste Management Authority (StopWaste.org) County of Contra Costa County of Marin City

  11. Low Oxygen Environments in Chesapeake Bay

    E-Print Network [OSTI]

    Boynton, Walter R.

    Low Oxygen Environments in Chesapeake Bay Jeremy Testa Chesapeake Biological Laboratory University of Maryland Center for Environmental Science Why we care about low oxygen? What causes low oxygen? Where and When does Chesapeake Bay lose oxygen? #12;#12;Hypoxia and Chesapeake Animals Low dissolved oxygen

  12. Automated Fault Location In Smart Distribution Systems 

    E-Print Network [OSTI]

    Lotfifard, Saeed

    2012-10-19T23:59:59.000Z

    ............................................................................................................................ 88 x LIST OF FIGURES Page Figure 1 Multiple possible fault location estimation for a fault at node A ........................ 7 Figure 2 Simple faulted network model [1] © [2011] IEEE ............................................ 40 Figure 3... Types C and D voltage sags for different phases [51] © [2003] IEEE .............. 42 Figure 4 Rf estimation procedure [1] © [2011] IEEE ...................................................... 45 Figure 5 Flow chart of the fault location algorithm [1...

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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 aquifer–3, lower clastic confining unit–1, and Mesozoic granite confining unit).

  18. New and Underutilized Technology: High Bay LED Lighting

    Broader source: Energy.gov [DOE]

    The following information outlines key deployment considerations for high bay LED lighting within the Federal sector.

  19. A study of the Galveston Bay bait-shrimp fishery

    E-Print Network [OSTI]

    Lamkin, John Tillman

    1984-01-01T23:59:59.000Z

    :1 with a yearly average of 4:1. Watts and pellegrin (1982) working off Texas and Louisiana reported ratios ranging from 3. 8:1 (& 10 fm) and 13. 9:1 (0-10 fm) in 1981 to 1. 7:1 and 4. 6:1, respectively, in 1982. Composition of the incidental catch... AREA Offatts Bayou West Bay Offatts Bayou West Bay Offatts Bayou West Bay Offatts Bayou West Bay % OF TOWS 26 74 50 50 7 93 6 94 November 1981 Lower Galveston Bay 28 West Bay 72 December 1981 Lower Galveston Bay 100 May 1982 June...

  20. Diagenesis and porosity evolution, Norphlet Formation in Mobile Bay, Alabama

    SciTech Connect (OSTI)

    Lock, B.E.; Broussard, S.W.

    1988-02-01T23:59:59.000Z

    Major deposits of natural gas were discovered in the Norphlet Formation beneath Mobile Bay in 1979. The reservoirs are in arkosic sandstones at depths greater than 20,000 ft, yet the productive interval has porosities up to 25%. Overlying the porous zone is a tight cap of thoroughly cemented sandstone of variable thickness, which poses problems for exploration and production. The tight zone, which together with overlying basal Smackover forms the reservoir seal, may be so thick that the underlying productive interval is substantially reduced. The upper parts of the Norphlet, in common with many other eolian sands, were reworked during a subsequent transgression. There is not a full correspondence, however, between the tight rock and the reworked facies. The origin of the impermeable zone is better understood as a function of the diagenetic history only partially related to depositional facies. It is proposed that, at an early stage of diagenesis, brines derived from the underlying Louann Salt and Werner Formation deposited anhydrite and possibly halite cements in the lower part of the Norphlet Formation. Marine working of the upper sands may have helped to disperse these brines from the upper part of the Norphlet, and the depth of reworking may even have been partially influenced by incipient cementation. The zones not already cemented by evaporites were subsequently cemented by quartz and feldspar overgrowths. At a very late stage, deep in the subsurface, the evaporite cements were flushed from the lower parts of the Norphlet, and locally abundant small feldspar crystals randomly nucleated in the pores. Gas migrated into the formation shortly afterward. Evaporites may play another important role in the petroleum geology of the deep Norphlet: the source of the gas may have been the underlying evaporites.

  1. Renewable Energy Renaissance Zones

    Broader source: Energy.gov [DOE]

    For the purposes of renaissance zone designation, “renewable energy facility” means a facility that creates energy, fuels, or chemicals directly from the wind, the sun, trees, grasses, biosolids,...

  2. Renaissance Zones (North Dakota)

    Broader source: Energy.gov [DOE]

    Renaissance Zones allow qualifying businesses and individuals to claim one or more tax incentives for purchasing, leasing, or making improvements to real property located in a North Dakota...

  3. Geothermal: Educational Zone

    Office of Scientific and Technical Information (OSTI)

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

  4. Fault-tolerant rotary actuator

    SciTech Connect (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.

  5. active fault diagnosis: Topics by E-print Network

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

    Harrold, Mary Jean 453 Fault Tolerant Control with Additive Compensation for Faults in an Automotive Damper Physics Websites Summary: Fault Tolerant Control with Additive...

  6. Passive fault current limiting device

    DOE Patents [OSTI]

    Evans, Daniel J. (Wheeling, IL); Cha, Yung S. (Darien, IL)

    1999-01-01T23:59:59.000Z

    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.

  7. 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.

  8. Bayes, Asymptotics, Simulation and the Bootstrap

    E-Print Network [OSTI]

    Fletcher, David

    Bayes, Asymptotics, Simulation and the Bootstrap David Fletcher Department of Mathematics Bootstrapping and Bayesian Methods #12;Bayesian Methods and Asymptotics Bayesian methods Conceptually simple for lognormal cases Insight: studentized bootstrap better than percentile Simulations useful for checking actual

  9. Introduction The bay scallop, Argopecten irradi-

    E-Print Network [OSTI]

    71(3) 17 Introduction The bay scallop, Argopecten irradi- ans amplicostatus, has been present (Garcia-Cubas, 1968). Historical Uses Mollusks were used by the pre-Co- lumbian cultures in Mexico as food

  10. Visualization of microcrack anisotropy in granite affected by afault zone, using confocal laser scanning microscope

    SciTech Connect (OSTI)

    Onishi, Celia T.; Shimizu, Ichiko

    2004-01-02T23:59:59.000Z

    Brittle deformation in granite can generate a fracture system with different patterns. Detailed fracture analyses at both macroscopic and microscopic scales, together with physical property data from a drill-core, are used to classify the effects of reverse fault deformation in four domains: (1) undeformed granite, (2) fractured granite with cataclastic seams, (3) fractured granite from the damage zone, and (4) foliated cataclasite from the core of the fault. Intact samples from two orthogonal directions, horizontal (H) and vertical (V), from the four domains indicate a developing fracture anisotropy toward the fault, which is highly developed in the damage zone. As a specific illustration of this phenomenon, resin impregnation, using a confocal laser scanning microscope (CLSM) technique is applied to visualize the fracture anisotropy developed in the Toki Granite, Japan. As a result, microcrack networks have been observed to develop in H sections and elongate open cracks in V sections, suggesting that flow pathways can be determined by deformation.

  11. Condition Assessment and Fault Prognostics of Microelectromechanical Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    monitoring, Condition assessment, Fault detection, Fault diagnostics, Fault prognostics. Corresponding, batteries, etc.) to complete machines (wind turbines, electrical motors, machining tools, etc.). SeveralCondition Assessment and Fault Prognostics of Microelectromechanical Systems K. Medjaher , H. Skima

  12. The aftermath of silurian faulting in southeast Michigan, and its effect on oil and gas exploration

    SciTech Connect (OSTI)

    Fowler, J.H. (Polaris Energy, Jackson, MI (United States))

    1994-08-01T23:59:59.000Z

    In Macomb Township of Macomb County, southeast Michigan, is found a sinuous normal fault extending along a N82[degrees]W strike, from end to end only 6 mi long, but with more than 260 ft of maximum displacement at the Trenton level. Through about 3 mi of its midsection extent, the main fault is paired with another normal fault with opposite displacement sense, forming a very narrow graben. The timing of development of this divergent wrench feature coincides with Caledonian tectonic activity, a period of intense structural disturbance and regional subsidence throughout the Michigan basin. The fault appears to cut no higher than A[sub 1] Carbonate, although relationships are obscured by subsequent dissolution of more than 500 ft of Salina A[sub 1], A[sub 2], B, D, and F salts along and beyond the trace of the fault. Collapse of interbedded carbonates and shales is evident, although the apparent lack of brecciation indicates salt removal was not rapid. Further, salt removal proceeded throughout the Devonian, producing dramatic compensatory thickening in overlying units. The development of this large feature in prime Niagaran reef territory may have prevented the discovery of reefs by obscuring what is otherwise well-known stratigraphy and seismic signature. The presence of oil production in dolomitized fracture zones in the Trenton/Black River rocks of nearby Ontario may point to similar potential yet remaining along the Macomb faulted trend.

  13. Queen Anne's County- Solar Zoning

    Broader source: Energy.gov [DOE]

    Queen Anne's County zoning code allows for ground mounted solar arrays in areas zoned as "open space," "agricultural," and "countryside" districts.

  14. Opportunity and Enterprise Zones (Oklahoma)

    Broader source: Energy.gov [DOE]

    Opportunity and Enterprise Zones provide enhanced financial incentives for businesses located in such zones aimed at stimulating economic expansion in rural and disadvantaged communities...

  15. Sensor Fault Detection and Isolation System

    E-Print Network [OSTI]

    Yang, Cheng-Ken

    2014-08-01T23:59:59.000Z

    The purpose of this research is to develop a Fault Detection and Isolation (FDI) system which is capable to diagnosis multiple sensor faults in nonlinear cases. In order to lead this study closer to real world applications in oil industries...

  16. Keystone Opportunity Zones (Pennsylvania)

    Broader source: Energy.gov [DOE]

    Keystone Opportunity Zones allows businesses located within designated areas to qualify for a tax exemption, deduction, credit, or abatement of state and local taxes such as sales and use tax,...

  17. Streamside Management Zones (Montana)

    Broader source: Energy.gov [DOE]

    This chapter sets streamside management zones as encompassing a strip at least 50 feet wide on each side of a stream, lake, or other body of water, measured from the ordinary high-water mark, and...

  18. 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

  19. High resolution quantitative seismic imaging of a strike-slip fault with small vertical offset in clay-rocks from

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    modify the rock confining properties. In the Tournemire Experimental Platform (TEP, France), fault zones, 2005). However, long term confining properties of the clay-rock layers might be affected of argillaceous rocks and the draining properties of tectonic structures are key parameters for the safety

  20. FAULT & COORDINATION STUDY FOR T PLANT COMPLEX

    SciTech Connect (OSTI)

    MCDONALD, G.P.; BOYD-BODIAU, E.A.

    2004-09-01T23:59:59.000Z

    A short circuit study is performed to determine the maximum fault current that the system protective devices, transformers, and interconnections would he subject to in event of a three phase, phase-to-phase, or phase-to-ground fault. Generally, the short circuit study provides the worst case fault current levels at each bus or connection point of the system.

  1. 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.

  2. High temperature superconducting fault current limiter

    DOE Patents [OSTI]

    Hull, John R. (Hinsdale, IL)

    1997-01-01T23:59:59.000Z

    A fault current limiter (10) for an electrical circuit (14). The fault current limiter (10) includes a high temperature superconductor (12) in the electrical circuit (14). The high temperature superconductor (12) is cooled below its critical temperature to maintain the superconducting electrical properties during operation as the fault current limiter (10).

  3. Using Fault Model Enforcement to Improve Availability

    E-Print Network [OSTI]

    instead that a new approach, called fault model enforcement, that maps actual faults to expected faults on a constellation of interconnected systems--a typical example is cluster-based systems [4]. Traditional database centers around a set of closely guarded racks and data closets woven together by intricate networks

  4. Using Fault Model Enforcement to Improve Availability

    E-Print Network [OSTI]

    Martin, Richard P.

    that a new approach, called fault model enforcement, that maps actual faults to expected faults on a constellation of interconnected systems--a typical example is cluster-based systems [4]. Traditional database centers around a set of closely guarded racks and data closets woven together by intricate networks

  5. IMPACTS OF CLIMATE CHANGE ON SAN FRANCISCO BAY AREA

    E-Print Network [OSTI]

    IMPACTS OF CLIMATE CHANGE ON SAN FRANCISCO BAY AREA RESIDENTIAL ELECTRICITY CONSUMPTION anthropogenic climate change on residential electricity consumption for the nine San Francisco Bay Area counties with different meant temperatures on households' electricity consumption. The estimation uses a comprehensive

  6. Cell boundary 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)

    2011-04-19T23:59:59.000Z

    An apparatus and program product determine a nodal fault along the boundary, or face, of a computing cell. Nodes on adjacent cell boundaries communicate with each other, and the communications are analyzed to determine if a node or connection is faulty.

  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. Development of Parameterized Surge Response Functions for Coastal Bays

    E-Print Network [OSTI]

    Katyal, Rajat

    2011-02-22T23:59:59.000Z

    ). The surge inside bays tends to be different from that at the open coast due to local geometric factors like shape, center of gravity, and characteristic size of the bay. To predict accurately the surge levels inside the bay, scaling laws are developed based...

  9. Development of a bridge fault extractor tool

    E-Print Network [OSTI]

    Bhat, Nandan D.

    2005-02-17T23:59:59.000Z

    as interlayer faults. An example of an intralayer fault is a bridge between two adjacent metal1 lines. An example of an interlayer fault is a short between overlapping polysilicon and metal1 lines. The rest of this thesis is organized as follows: Chapter 2... between two adjacent 6 metal1 lines. An example of an interlayer fault is a short between overlapping polysilicon and metal1 lines. A recent survey of fault extractors describes their different features [15]. Some tools such as VLASIC [16] attempt...

  10. Sedimentary parameters of upper Barataria Bay, Louisiana

    E-Print Network [OSTI]

    Siegert, Rudolf B

    1961-01-01T23:59:59.000Z

    SEDIMENTARY PARAMETERS OF UPPER BARATARIA BAY, LOUISIANA A Thesis Rudolf Bernhardt Siegert Submitted to the Graduate School of the Agricultural snd Mechanical College of Texas in partial fulfillment of the reGulremente for the d. agree... of MASTER OF SCIENCE August 1961 Ma)or Sub)ect GeologP SEDYIKNTARY PARAI'ZTEHS OF DT'PBR BARATARIA BAY, LOUISIANA A Thesis By Rudolf Bernhardt Siegert Approved as to style and content by: Chairman of C 'tice Bea of Department or Student Advisor...

  11. A geologic study of Matagorda Bay, Texas

    E-Print Network [OSTI]

    Fagg, David Bruce

    1957-01-01T23:59:59.000Z

    3ecent-I'leistoccnc contact $9 33 Piston Core 33 snoN. inI. - iiecent-Pleistocene contact-- 91 34 I'iston Core 3r3 s&ro&r &ng Hecerrt-Pleistocene contaci. -- 92 35 "Sand Silt Clay 3(atro 1'rian3. "les"- ? -107 Plate 1 Matai, "o& da Hay... 5 The Eunice formation alon the west shore of Matagorda Bay north of LaSalle Bayou----------- 29 6 Eunice sands overlying Eunice clayey silts on the west shore of hiatagorda Bay north of LaSalle Bayou 29 7 Eunice sand overlying Eunice clayey...

  12. Chesapeake Bay anoxia: origin, development, and significance

    SciTech Connect (OSTI)

    Officer, C.B.; Biggs, R.B.; Taft, J.L.; Cronin, L.E.; Tyler, M.A.; Boynton, W.R.

    1984-01-06T23:59:59.000Z

    Anoxia occurs annually in deeper waters of the central portion of the Chesapeake Bay and presently extends from Baltimore to the mouth of the Potomac estuary. This condition, which encompasses some 5 billion cubic meters of water and lasts from May to September, is the result of increased stratification of the water column in early spring, with consequent curtailment of reoxygenation of the bottom waters across the halocline, and benthic decay of organic detritus accumulated from plankton blooms of the previous summer and fall. The Chesapeake Bay anoxia appears to have had significant ecological effects on many marine species, including several of economic importance. 43 references, 7 figures, 1 table.

  13. BayWa Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions IncBay County, Florida: Energy ResourcesBayWa Group Jump to:

  14. Sonar imaging of bay bottom sediments and anthropogenic impacts in Galveston Bay, Texas

    E-Print Network [OSTI]

    Maddox, Donald Shea

    2007-04-25T23:59:59.000Z

    based on changes in amplitude and stratigraphy. Parallel, layered sediments are seen filling the bay valley and resting atop a sharp contact at which the acoustic signal fades out. Along the flanks of the valley fill the acoustic response revealed...

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

    E-Print Network [OSTI]

    Carswell, Patrick Wayne

    1988-01-01T23:59:59.000Z

    In response to an Electric Power Research Institute (EPRI) request for pro- posed solutions for the detection of high impedance faults, the Hughes Aircraft Corporation developed a detection technique based solely on the level of the third harmonic current... for proposed solutions from EPRI that brought the Hughes technique, Power Technologies Incorporated (PTI) proposed a technique which statistically monitors the first, third, and fifth harmonics of current to make a, determination as to the presence of a high...

  16. 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

    1987-01-01T23:59:59.000Z

    correspond to the NE trending set of faults and the secondary antithetic faults corre- spond to the N to NNE set (Figure 12). Fractures, represented by the dashed lines in Figure 12, occur in direct association with the primary and secondary faults...DEVELOPMENT OF SECONDARY FAULTS BETWEEN EN ECHELON, OBLIQUE-SLIP FAULTS: EXAMPLES FROM BASEMENT CONTROLLED, SMALL-FAULT SYSTEMS IN THE LLANO UPLIFT OF CENTRAL TEXAS A Thesis by HOWARD REIFFERT HEDGCOXE Submitted to the Graduate College...

  17. Crossing Active Faults on the Sakhalin II Onshore Pipeline Route: Pipeline Design and Risk Analysis

    SciTech Connect (OSTI)

    Mattiozzi, Pierpaolo [Snamprogetti-Saipem, Via Toniolo, 1, 61032 Fano (Italy); Strom, Alexander [Institute of Geospheres Dynamics, Leninskiy Avenue, 38, Building 1, 119334, Moscow (Russian Federation)

    2008-07-08T23:59:59.000Z

    Twin oil (20 and 24 inch) and gas (20 and 48 inch) pipeline systems stretching 800 km are being constructed to connect offshore hydrocarbon deposits from the Sakhalin II concession in the North to an LNG plant and oil export terminal in the South of Sakhalin island. The onshore pipeline route follows a regional fault zone and crosses individual active faults at 19 locations. Sakhalin Energy, Design and Construction companies took significant care to ensure the integrity of the pipelines, should large seismic induced ground movements occur during the Operational life of the facilities. Complex investigations including the identification of the active faults, their precise location, their particular displacement values and assessment of the fault kinematics were carried out to provide input data for unique design solutions. Lateral and reverse offset displacements of 5.5 and 4.5 m respectively were determined as the single-event values for the design level earthquake (DLE) - the 1000-year return period event. Within the constraints of a pipeline route largely fixed, the underground pipeline fault crossing design was developed to define the optimum routing which would minimize stresses and strain using linepipe materials which had been ordered prior to the completion of detailed design, and to specify requirements for pipe trenching shape, materials, drainage system, etc. Detailed Design was performed with due regard to actual topography and to avoid the possibility of the trenches freezing in winter, the implementation of specific drainage solutions and thermal protection measures.

  18. Crossing Active Faults on the Sakhalin II Onshore Pipeline Route: Analysis Methodology and Basic Design

    SciTech Connect (OSTI)

    Vitali, Luigino [Snamprogetti-Saipem, Via Toniolo, 1, 61032 Fano, Luigino (Italy); Mattiozzi, Pierpaolo [Snamprogetti-Saipem, Via Toniolo, 1, 61032 Fano (Italy)

    2008-07-08T23:59:59.000Z

    Twin oil (20 and 24 inch) and gas (20 and 48 inch) pipeline systems stretching 800 km are being constructed to connect offshore hydrocarbon deposits from the Sakhalin II concession in the North to an LNG plant and oil export terminal in the South of Sakhalin island. The onshore pipeline route follows a regional fault zone and crosses individual active faults at 19 locations. Sakhalin Energy, Design and Construction companies took significant care to ensure the integrity of the pipelines, should large seismic induced ground movements occur during the Operational life of the facilities. Complex investigations including the identification of the active faults, their precise location, their particular displacement values and assessment of the fault kinematics were carried out to provide input data for unique design solutions. Lateral and reverse offset displacements of 5.5 and 4.5 m respectively were determined as the single-event values for the design level earthquake (DLE)--the 1000-year return period event. Within the constraints of a pipeline route largely fixed, the underground pipeline fault crossing design was developed to define the optimum routing which would minimize stresses and strain using linepipe materials which had been ordered prior to the completion of detailed design, and to specify requirements for pipe trenching shape, materials, drainage system, etc. This Paper describes the steps followed to formulate the concept of the special trenches and the analytical characteristics of the Model.

  19. Fuzzy decision and control, the Bayes context

    E-Print Network [OSTI]

    Painter, John H.

    1993-12-15T23:59:59.000Z

    This paper shows how it is that fuzzy control may be viewed as a particular kind of stochastic (Bayesian) control. With the Bayes approach, fuzzy control may be viewed as an ensembled-average control, where the average is taken over a set...

  20. Carolina bays of the Savannah River Plant

    SciTech Connect (OSTI)

    Schalles, J.F. (Creighton Univ., Omaha, NE (USA)); Sharitz, R.R.; Gibbons, J.W.; Leversee, G.J.; Knox, J.N. (Savannah River Ecology Lab., Aiken, SC (USA))

    1989-01-01T23:59:59.000Z

    Much of the research to date on the Carolina bays of the Savannah River Plant and elsewhere has focused on certain species or on environmental features. Different levels of detail exist for different groups of organisms and reflect the diverse interests of previous investigators. This report summarizes aspects of research to date and presents data from numerous studies. 70 refs., 14 figs., 12 tabs.

  1. Prudhoe Bay Oil Production Optimization: Using Virtual

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    1 Prudhoe Bay Oil Production Optimization: Using Virtual Intelligence Techniques, Stage One: Neural total field oil production by optimizing the gas discharge rates and pressures at the separation handling capacity and subsequent oil production. 10 YEAR AVERAGE AMBIENT 1990-2000 & 2001, 2002 Averages

  2. Bayes Nets Representation: joint distribution and conditional

    E-Print Network [OSTI]

    Mitchell, Tom

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

  3. Ground motion modeling of Hayward fault scenario earthquakes II:Simulation of long-period and broadband ground motions

    SciTech Connect (OSTI)

    Aagaard, B T; Graves, R W; Rodgers, A; Brocher, T M; Simpson, R W; Dreger, D; Petersson, N A; Larsen, S C; Ma, S; Jachens, R C

    2009-11-04T23:59:59.000Z

    We simulate long-period (T > 1.0-2.0 s) and broadband (T > 0.1 s) ground motions for 39 scenarios earthquakes (Mw 6.7-7.2) involving the Hayward, Calaveras, and Rodgers Creek faults. For rupture on the Hayward fault we consider the effects of creep on coseismic slip using two different approaches, both of which reduce the ground motions compared with neglecting the influence of creep. Nevertheless, the scenario earthquakes generate strong shaking throughout the San Francisco Bay area with about 50% of the urban area experiencing MMI VII or greater for the magnitude 7.0 scenario events. Long-period simulations of the 2007 Mw 4.18 Oakland and 2007 Mw 4.5 Alum Rock earthquakes show that the USGS Bay Area Velocity Model version 08.3.0 permits simulation of the amplitude and duration of shaking throughout the San Francisco Bay area, with the greatest accuracy in the Santa Clara Valley (San Jose area). The ground motions exhibit a strong sensitivity to the rupture length (or magnitude), hypocenter (or rupture directivity), and slip distribution. The ground motions display a much weaker sensitivity to the rise time and rupture speed. Peak velocities, peak accelerations, and spectral accelerations from the synthetic broadband ground motions are, on average, slightly higher than the Next Generation Attenuation (NGA) ground-motion prediction equations. We attribute at least some of this difference to the relatively narrow width of the Hayward fault ruptures. The simulations suggest that the Spudich and Chiou (2008) directivity corrections to the NGA relations could be improved by including a dependence on the rupture speed and increasing the areal extent of rupture directivity with period. The simulations also indicate that the NGA relations may under-predict amplification in shallow sedimentary basins.

  4. www.VadoseZoneJournal.org Vadose Zone Journal

    E-Print Network [OSTI]

    Vrugt, Jasper A.

    , biofuels, sustainability, and nanotechnology. Since its inception, Vadose Zone Journal has grown tre, multicomponent (reactive) transport modeling, radionuclide transport, multiphase flow, recharge in arid transport, remote sensing of vadose zone properties, hillslope hydrology, gas diffusion, environmental

  5. EnginEEring ZonE "The Engineering Zone

    E-Print Network [OSTI]

    Tobar, Michael

    EnginEEring ZonE "The Engineering Zone will push the limits in collaborative learning and research, and empower people to change the world. "Winthrop Professor John Dell Dean, Faculty of Engineering, Computing and Mathematics #12;2 | nEw CEntury Campaign ­ EnginEEring ZonE #12;nEw CEntury Campaign ­ EnginEEring ZonE | 3

  6. Fault prophet : a fault injection tool for large scale computer systems

    E-Print Network [OSTI]

    Tchwella, Tal

    2014-01-01T23:59:59.000Z

    In this thesis, I designed and implemented a fault injection tool, to study the impact of soft errors for large scale systems. Fault injection is used as a mechanism to simulate soft errors, measure the output variability ...

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

    E-Print Network [OSTI]

    Thadhlani, Ajaykumar A

    2001-01-01T23:59:59.000Z

    With increasing operating speed and shrinking technology, timing defects in integrated circuits are becoming increasingly important. The well established stuck-at-fault model is not sufficient because it is a static fault ...

  8. 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...

  9. Fault-tolerant dynamic task graph scheduling

    SciTech Connect (OSTI)

    Kurt, Mehmet C.; Krishnamoorthy, Sriram; Agrawal, Kunal; Agrawal, Gagan

    2014-11-16T23:59:59.000Z

    In this paper, we present an approach to fault tolerant execution of dynamic task graphs scheduled using work stealing. In particular, we focus on selective and localized recovery of tasks in the presence of soft faults. We elicit from the user the basic task graph structure in terms of successor and predecessor relationships. The work stealing-based algorithm to schedule such a task graph is augmented to enable recovery when the data and meta-data associated with a task get corrupted. We use this redundancy, and the knowledge of the task graph structure, to selectively recover from faults with low space and time overheads. We show that the fault tolerant design retains the essential properties of the underlying work stealing-based task scheduling algorithm, and that the fault tolerant execution is asymptotically optimal when task re-execution is taken into account. Experimental evaluation demonstrates the low cost of recovery under various fault scenarios.

  10. Shallow seismic reflection confirmation of Berea gas pool structure and faulting, Portage County, Ohio

    SciTech Connect (OSTI)

    Sergoulopoulos, A.; Coogan, A.H.; Palmer, D.F.

    1987-09-01T23:59:59.000Z

    The Mississippian Berea Sandstone is a reservoir for shallow gas in Suffield Township, Portage County, Ohio, in the informally named St. Joseph's Church field. Production of natural gas from the Berea reservoir is from sandstone up to 60 ft (18 m) thick with porosity in the 15-25% range. The field, which is at about 400 ft (720 ft above sea level), lies updip from the Akron-Suffield fault zone and more or less along strike from the Berea gas field in Randolph Township to the southeast. The trap for the gas is anticlinal and overlying Sunbury shale (so called Coffee shale) is the seal. Initial field pressures were about 80-100 psi (552 kPa). A shallow seismic survey of 6 refraction and 26 CDP reflection lines was made, using a six-channel Bison recording unit. Reflections were obtained from depths down to 800 ft through well-documented formations of known lithology, including glacial till (kame and non-kame), Sharon Shale, Sharone Sandstone, Sunbury Shale, Berea Sandstone, Bedford Shale, and Ohio Shale. Correlation of the seismic data with logs from three separate wells drilled with cable tools was used to derive interval velocities for depth control. Seismic reflections from the top of the Berea Sandstone were consistent over the area with depths from wells. Unexpectedly high elevations of the Berea Sandstone on the southern crest of the anticlinal dome lay in a straight line trending east-west. This suggests the presence of a fault with a general east-west strike and vertical displacement of 15-18 ft. Marginal gas production was encountered just north of the plotted fault on a line between the best producing wells on 450-500 ft centers. Better gas-producing wells lie on the downthrown side of the small eastwest fault and close to the fault. The fault is probably one of many in the area and may be a splinter fault of the Akron-Suffield fault zone.

  11. The Enterprise Zone (Rhode Island)

    Broader source: Energy.gov [DOE]

    The Enterprise Zone offers tax incentives to business expanding their workforce by 5% at facilities in designated enterprise zones. The tax credit is equal to 50% of the annual wages paid to a new...

  12. Radiant zone heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-12-27T23:59:59.000Z

    A system includes a particulate matter (PM) filter including an upstream end for receiving exhaust gas and a downstream end. A radiant zoned heater includes N zones, where N is an integer greater than one, wherein each of the N zones includes M sub-zones, where M is an integer greater than or equal to one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones, restricts exhaust gas flow in a portion of the PM filter that corresponds to the selected one of the N zones, and deactivates non-selected ones of the N zones.

  13. Automated Fault Location In Smart Distribution Systems

    E-Print Network [OSTI]

    Lotfifard, Saeed

    2012-10-19T23:59:59.000Z

    Quality Meters (PQM), are installed to capture harmonics and certain disturbances for analyzing the power quality indices. Digital Protective Relays are utilized to detect occurrence of the faults and isolate faulted section as fast as possible. Digital... Protective Relays) use synchronous methods [28]. Therefore, if the available data is provided by RTUs, fault location methods that operate based on direct comparison of the input samples cannot be 17 utilized. However, if the data could be gathered from...

  14. 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...

  15. Vadose zone water fluxmeter

    DOE Patents [OSTI]

    Faybishenko, Boris A.

    2005-10-25T23:59:59.000Z

    A Vadose Zone Water Fluxmeter (WFM) or Direct Measurement WFM provides direct measurement of unsaturated water flow in the vadose zone. The fluxmeter is a cylindrical device that fits in a borehole or can be installed near the surface, or in pits, or in pile structures. The fluxmeter is primarily a combination of tensiometers and a porous element or plate in a water cell that is used for water injection or extraction under field conditions. The same water pressure measured outside and inside of the soil sheltered by the lower cylinder of the fluxmeter indicates that the water flux through the lower cylinder is similar to the water flux in the surrounding soil. The fluxmeter provides direct measurement of the water flow rate in the unsaturated soils and then determines the water flux, i.e. the water flow rate per unit area.

  16. 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

  17. 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

  18. 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

    was involved in the fault was evaluated using the event-phase possibility values and line section phase topology information. The fault distance algorithm was used to eliminate sections of the feeder that were not likely to be possible faulted section...

  19. Shallow faults mapped with seismic reflections: Lost River Fault, Idaho

    E-Print Network [OSTI]

    Mubarik, Ali; Miller, Richard D.; Steeples, Don W.

    1991-09-01T23:59:59.000Z

    stations 132 and 160. Total bedrock dis?lace- ment interpreted along this seismic survey line is approxa- mately 6 m, representing 4 to 6 times more displacement than is observed on either the common offset refraction section or at the surface..., vol. A, U.S. Geological Survey Open-file Report 85-290, 182-194, 1985. Crone, A. J., and M. N. Macbette, Surface faulting accompa- nying the Borah Peak earthquake, central Idaho, Geology, 12, 664-667, 1984. Crone, A. J., M. N. Macbette, M. G...

  20. Accurate resistive bridge fault modeling, simulation, and test generation 

    E-Print Network [OSTI]

    Sar-Dessai, Vijay Ramesh

    1999-01-01T23:59:59.000Z

    Resistive bridging faults in CMOS combinational circuits are studied in this work. Bridging faults are modeled using HSPICE circuit simulation of the various types of bridging faults that can occur in CMOS combinational ...

  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. Accurate resistive bridge fault modeling, simulation, and test generation

    E-Print Network [OSTI]

    Sar-Dessai, Vijay Ramesh

    1999-01-01T23:59:59.000Z

    Resistive bridging faults in CMOS combinational circuits are studied in this work. Bridging faults are modeled using HSPICE circuit simulation of the various types of bridging faults that can occur in CMOS combinational circuits. The results...

  4. Improving Distribution System Reliability Through Risk-base Doptimization of Fault Management and Improved Computer-based Fault Location

    E-Print Network [OSTI]

    Dong, Yimai

    2013-11-07T23:59:59.000Z

    )’s regulation on power quality. Optimization in fault management tasks has the potential of improving system reliability by reducing the duration and scale of outages caused by faults through fast fault isolation and service restoration. The research reported...

  5. Evaluation of faulting characteristics and ground acceleration associated with recent movement along the Meers Fault, Southwestern Oklahoma

    E-Print Network [OSTI]

    Burrell, Richard Dennis

    1997-01-01T23:59:59.000Z

    Recent studies have shown that a 27 km section of the Meers Fault was reactivated during Holocene time. Although these studies have proven the occurrence of recent fault activity, many basic characteristics of the faulting remain unresolved...

  6. 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

    proximate lines served by the same substation. Because of this signal propagation, a fault will be detected simultaneously on the faulted line and possibly several other lines served by the substation. Since it would not be plausible for a utility company... to deenergize the entire area served by a substation due to a high impedance fault on one lateral, a technique is needed to discriminate the faulted line from neighboring healthy feeders and healthy phases of the faulted feeder. Such a technique would also...

  7. 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...

  8. 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

  9. Mercury bioaccumulation in Lavaca Bay, Texas

    E-Print Network [OSTI]

    Palmer, Sally Jo

    1992-01-01T23:59:59.000Z

    (waves), and human activities (dredging and shrimping) can potentially release mercury to the overlying water (LINDBERG and HARRISS, 1977; CRANSTON, 1976). The solubility, reactivity, and toxicity of mercury is dependent on its form. Divalent mercury... MERCURY BIOACCUMULATION IN LAVACA BAY, TEXAS A Thesis by SALLY JO PALMER Submitted to the Office of Graduate Studies of Texas ABM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1992 Major...

  10. Fault-tolerant TCP mechanisms 

    E-Print Network [OSTI]

    Satapati, Suresh Kumar

    2000-01-01T23:59:59.000Z

    point (TSAPs). In BSD, a service access point is a TCP socket identified by an IP address and port number, A TCP based fault-tolerant service is realized by replicating a server program onto one or more hosts and by having all replicas bind... backup sends the SEQUENCE NUMBER of the segment it recently sent. Since the primary server doesn't exist, the client does not acknowledge. The TCP on backup server keeps retransmitting the same segment, which can be counted to initiate a...

  11. abnormal resistive zones: Topics by E-print Network

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

    NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE Kainen, Paul C. 11 Seismic Amplitude Versus Offset (AVO) Character of Geopressured Transition Zones Geosciences...

  12. Petroleum hydrocarbon-degrading bacteria in the Galveston Bay system

    E-Print Network [OSTI]

    Schropp, Steven James

    1979-01-01T23:59:59.000Z

    of Department) (Membge' ) I, (Member) December, 1979 ABSTRACT Petroleum Hydrocarbon-Degrading Bacteria in the Galveston Bay System {December 1979) Steven James Schropp: B. S. , Texas A&M University Co-Chairmen of Advisory Committee: Dr. John R. Schwarz... about the distribution and abundance of petroleum hydrocarbon-degrad- ing bacteria in the Galveston Bay system. Several parts of the Galveston Bay system were sampled during this study. Petroleum input to the study area ranged from relatively small...

  13. Wind-wave measurements in a shallow estuary: Trinity Bay, Texas

    E-Print Network [OSTI]

    Dupuis, Keith Wade

    2009-05-15T23:59:59.000Z

    Acoustic current meter data collected in the shallow ( 3m depth) Trinity Bay, (TB a sub-bay in Galveston Bay), TX, estuary were used to characterize locally generated windwaves. Significant wave heights, periods, and directions were estimated from...

  14. Appendix B. Selected Web Pages Related to MHB 1. NARRAGANSETT BAY PORTS DATA: (CONDUCTIVITY, SALINITY,

    E-Print Network [OSTI]

    Chen, Changsheng

    Power Plant Canal Station Power Plant Mystic Power Plant http://www.pirg.org/masspirg/enviro of Narragansett Bay fish and fisheries, a survey of sediment pollution in Narragansett Bay, a study of Bay

  15. Optimized Fault Location Final Project Report

    E-Print Network [OSTI]

    Engineering Research Center Optimized Fault Location Concurrent Technologies Corporation Final Project Report by the Concurrent Technologies Corporation (CTC) and the Power Systems Engineering Research Center (PSERC). NeitherOptimized Fault Location Final Project Report Power Systems Engineering Research Center A National

  16. 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...

  17. 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...

  18. INDUCTION MOTOR FAULT DIAGNOSTIC AND MONITORING METHODS

    E-Print Network [OSTI]

    Povinelli, Richard J.

    INDUCTION MOTOR FAULT DIAGNOSTIC AND MONITORING METHODS by Aderiano M. da Silva, B.S. A Thesis;i Abstract Induction motors are used worldwide as the "workhorse" in industrial applications material. However, induction motor faults can be detected in an initial stage in order to prevent

  19. arcachon bay france: Topics by E-print Network

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

    Bay Area Environmental Sciences and Ecology Websites Summary: Soulejule Stevens Creek TotalMercury(ppmwetweight) Mercury Concentrations in Channel Catfish 12;0.00 0.50...

  20. Chesapeake Bay, Drilling for Oil or Gas Prohibited (Virginia)

    Broader source: Energy.gov [DOE]

    Drilling for oil or gas in the waters or within 500 hundred feet from the shoreline of the Chesapeake Bay or any of its tributaries is prohibited.

  1. Humboldt Bay Initiative: Adaptive Management in a Changing World

    E-Print Network [OSTI]

    Schlosser, Susan

    2009-01-01T23:59:59.000Z

    annual maintenance dredging (2007-2011). NMFS, Southwestdevelopment, diking, and dredging. The Bay and itsor is directly removed by dredging. Watersheds adjacent to

  2. Control of hardwood regeneration in restored carolina bay depression wetlands.

    SciTech Connect (OSTI)

    Moser, Lee, J.; Barton, Christopher, D.; Blake, John, I.

    2012-06-01T23:59:59.000Z

    Carolina bays are depression wetlands located in the coastal plain region of the eastern United States. Disturbance of this wetland type has been widespread, and many sites contain one or more drainage ditches. Restoration of bays is of interest because they are important habitats for rare flora and fauna. Previous bay restoration projects have identified flood-tolerant woody competitors in the seedbank and re-sprouting as impediments to the establishment of desired herbaceous wetland vegetation communities. We restored 3 bays on the Savannah River Site, South Carolina, by plugging drainage ditches, harvesting residual pine/hardwood stands within the bays, and monitoring the vegetative response of the seedbank to the hydrologic change. We applied a foliar herbicide on one-half of each bay to control red maple (Acerrubrum), sweetgum (Liquidambar styraciflua), and water oak (Quercus nigra) sprouting, and we tested its effectiveness across a hydrologic gradient in each bay. Hardwood regeneration was partially controlled by flooding in bays that exhibited long growing season hydroperiods. The findings also indicated that herbicide application was an effective means for managing hardwood regeneration and re-sprouting in areas where hydrologic control was ineffective. Herbicide use had no effect on species richness in the emerging vegetation community. In late-season drawdown periods, or in bays where hydroperiods are short, more than one herbicide application may be necessary.

  3. Modeling nitrogen cycling in forested watersheds of Chesapeake Bay

    SciTech Connect (OSTI)

    Hunsaker, C.T.; Garten, C.T.; Mulholland, P.J.

    1995-03-01T23:59:59.000Z

    The Chesapeake Bay Agreement calls for a 40% reduction of controllable phosphorus and nitrogen to the tidal Bay by the year 2000. To accomplish this goal the Chesapeake Bay Program needs accurate estimates of nutrient loadings, including atmospheric deposition, from various land uses. The literature was reviewed on forest nitrogen pools and fluxes, and nitrogen data from research catchments in the Chesapeake Basin were identified. The structure of a nitrogen module for forests is recommended for the Chesapeake Bay Watershed Model along with the possible functional forms for fluxes.

  4. Mercury-Contaminated Hydraulic Mining Debris in San Francisco Bay

    E-Print Network [OSTI]

    Bouse, Robin M; Fuller, Christopher C; Luoma, Sam; Hornberger, Michelle I; Jaffe, Bruce E; Smith, Richard E

    2010-01-01T23:59:59.000Z

    Contaminated Hydraulic Mining Debris in San Francisco BayAbstract The hydraulic gold-mining process used during thecreated by hydraulic gold mining in the Sierra Nevada,

  5. astrophyllite bay complex: Topics by E-print Network

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

    to N qubits. Finally, we show that quantum state estimates derived via the principle of maximum entropy are fundamentally different from those obtained via the quantum Bayes...

  6. activator bay k8644: Topics by E-print Network

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

    to N qubits. Finally, we show that quantum state estimates derived via the principle of maximum entropy are fundamentally different from those obtained via the quantum Bayes...

  7. Liquid zone seal

    DOE Patents [OSTI]

    Klebanoff, Leonard E. (Dublin, CA)

    2001-01-01T23:59:59.000Z

    A seal assembly that provides a means for establishing multiple pressure zones within a system. The seal assembly combines a plate extending from the inner wall of a housing or inner enclosure that intersects with and is immersed in the fluid contained in a well formed in a tray contained within the enclosure. The fluid is a low vapor pressure oil, chemically inert and oxidation resistant. The use of a fluid as the sealing component provides a seal that is self-healing and mechanically robust not subject to normal mechanical wear, breakage, and formation of cracks or pinholes and decouples external mechanical vibrations from internal structural members.

  8. Saturated Zone Colloid Transport

    SciTech Connect (OSTI)

    H. S. Viswanathan

    2004-10-07T23:59:59.000Z

    This scientific analysis provides retardation factors for colloids transporting in the saturated zone (SZ) and the unsaturated zone (UZ). These retardation factors represent the reversible chemical and physical filtration of colloids in the SZ. The value of the colloid retardation factor, R{sub col} is dependent on several factors, such as colloid size, colloid type, and geochemical conditions (e.g., pH, Eh, and ionic strength). These factors are folded into the distributions of R{sub col} that have been developed from field and experimental data collected under varying geochemical conditions with different colloid types and sizes. Attachment rate constants, k{sub att}, and detachment rate constants, k{sub det}, of colloids to the fracture surface have been measured for the fractured volcanics, and separate R{sub col} uncertainty distributions have been developed for attachment and detachment to clastic material and mineral grains in the alluvium. Radionuclides such as plutonium and americium sorb mostly (90 to 99 percent) irreversibly to colloids (BSC 2004 [DIRS 170025], Section 6.3.3.2). The colloid retardation factors developed in this analysis are needed to simulate the transport of radionuclides that are irreversibly sorbed onto colloids; this transport is discussed in the model report ''Site-Scale Saturated Zone Transport'' (BSC 2004 [DIRS 170036]). Although it is not exclusive to any particular radionuclide release scenario, this scientific analysis especially addresses those scenarios pertaining to evidence from waste-degradation experiments, which indicate that plutonium and americium may be irreversibly attached to colloids for the time scales of interest. A section of this report will also discuss the validity of using microspheres as analogs to colloids in some of the lab and field experiments used to obtain the colloid retardation factors. In addition, a small fraction of colloids travels with the groundwater without any significant retardation. Radionuclides irreversibly sorbed onto this fraction of colloids also transport without retardation. The transport times for these radionuclides will be the same as those for nonsorbing radionuclides. The fraction of nonretarding colloids developed in this analysis report is used in the abstraction of SZ and UZ transport models in support of the total system performance assessment (TSPA) for the license application (LA). This analysis report uses input from two Yucca Mountain Project (YMP) analysis reports. This analysis uses the assumption from ''Waste Form and In-Drift Colloids-Associated Radionuclide Concentrations: Abstraction and Summary'' that plutonium and americium are irreversibly sorbed to colloids generated by the waste degradation processes (BSC 2004 [DIRS 170025]). In addition, interpretations from RELAP analyses from ''Saturated Zone In-Situ Testing'' (BSC 2004 [DIRS 170010]) are used to develop the retardation factor distributions in this analysis.

  9. 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.

  10. Bayes Neutral Zone Classification in Unsupervised and Semi-Supervised Settings

    E-Print Network [OSTI]

    Benecke, Scott Robert

    2012-01-01T23:59:59.000Z

    vector pairings for the clique and k-means clusteringalgorithm (e.g. , k-means algorithm) and arbitrarily assignij 0 ) matrix using k-means where ? ij 0 is the probability

  11. Bay County, Florida ASHRAE 169-2006 Climate Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions Inc

  12. Effects and impacts of vessel activity on the Kittlitz's Murrelet (Brachyramphus brevirostris) in Glacier Bay, Alaska

    E-Print Network [OSTI]

    Washington at Seattle, University of

    ) in Glacier Bay, Alaska Alison M. Agness A thesis submitted in partial fulfillment of the requirements (Brachyramphus brevirostris) in Glacier Bay, Alaska.....35 Summary

  13. Targeting Net Zero Energy at Marine Corps Base Kaneohe Bay, Hawaii...

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

    Targeting Net Zero Energy at Marine Corps Base Kaneohe Bay, Hawaii: Assessment and Recommendations Targeting Net Zero Energy at Marine Corps Base Kaneohe Bay, Hawaii: Assessment...

  14. Contaminants in Vadose Zone Environments

    SciTech Connect (OSTI)

    Wellman, Dawn M.; Freshley, Mark D.; Johnson, Timothy C.; Miracle, Ann L.

    2012-11-01T23:59:59.000Z

    Contaminants in vadose zone environments pose a long-term source and threat to groundwater resources, human health, and the environment. Several technical, regulatory, and policy challenges and opportunities are associated with contamination in vadose zone environments, particularly in remediation. In this special issue, ten papers present novel approaches to characterize, monitor, remediate, and predict the transport and fate of contaminants in vadose zone environments.

  15. Western Renewable Energy Zones (Presentation)

    SciTech Connect (OSTI)

    Hein, J.

    2011-06-01T23:59:59.000Z

    This presentation summarizes recent developments and trends pertaining to competitive renewable energy zones, transmission planning and the integration of renewable generation resources.

  16. Analysis of Empirical MAP and Empirical Partially Bayes: Can They be Alternatives to Variational Bayes?

    E-Print Network [OSTI]

    Sugiyama, Masashi

    Bayes? Shinichi Nakajima Masashi Sugiyama Nikon Corporation Tokyo Institute of Technology Abstract Bayesian scenario, where the hyperpa- rameters are also estimated from observation, are trivial and useless, although the global solutions of empirical PB and empirical MAP are useless, the local solutions behave

  17. Fault-Tolerant CCM Middleware for Embedded Adaptive Dependability (MEAD)

    E-Print Network [OSTI]

    Narasimhan, Priya

    Fault-Tolerant CCM Middleware for Embedded Adaptive Dependability (MEAD) Real-Time Fault Narasimhan Carnegie Mellon University CCM Workshop, Nashville, TN December 10, 2003 #12;12/11/2003 Page 2 Model precursor to a real-time fault tolerant CCM ­ Real-Time Fault Tolerant CORBA Standard RFP launched

  18. Breathing zone air sampler

    SciTech Connect (OSTI)

    Tobin, John (Bethel Park, PA)

    1989-01-01T23:59:59.000Z

    A sampling apparatus is provided which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.

  19. Breathing zone air sampler

    SciTech Connect (OSTI)

    Tobin, J.

    1989-08-22T23:59:59.000Z

    A sampling apparatus is presented which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.

  20. Anomalous zones in Gulf Coast Salt domes with special reference to Big Hill, TX, and Weeks Island, LA

    SciTech Connect (OSTI)

    Neal, J.T. [Sandia National Labs., Albuquerque, NM (United States); Magorian, T.R. [Magorian (Thomas R.), Amherst, NY (United States); Thoms, R.L. [AGM, Inc., College Station, TX (United States); Autin, W.J.; McCulloh, R.P. [Louisiana Geological Survey, Baton Rouge, LA (United States); Denzler, S.; Byrne, K.O. [Acres International Corp., Amherst, NY (United States)

    1993-07-01T23:59:59.000Z

    Anomalous features in Gulf Coast Salt domes exhibit deviations from normally pure salt and vary widely in form from one dome to the next, ranging considerably in length and width. They have affected both conventional and solution mining in several ways. Gas outbursts, insolubles, and potash (especially carnallite) have led to the breakage of tubing in a number of caverns, and caused irregular shapes of many caverns through preferential leaching. Such anomalous features essentially have limited the lateral extent of conventional mining at several salt mines, and led to accidents and even the closing of several other mines. Such anomalous features, are often aligned in anomalous zones, and appear to be related to diapiric processes of salt dome development. Evidence indicates that anomalous zones are found between salt spines, where the differential salt intrusion accumulates other materials: Anhydrite bands which are relatively strong, and other, weaker impurities. Shear zones and fault displacement detected at Big Hill and Weeks Island domes have not yet had any known adverse impacts on SPR oil storage, but new caverns at these sites conceivably may encounter some potentially adverse conditions. Seismic reflection profiles at Big Hill dome have shown numerous fractures and faults in the caprock, and verified the earlier recognition of a major shear zone transecting the entire salt stock and forming a graben in the overlying caprock. Casing that is placed in such zones can be at risk. Knowledge of these zones should create awareness of possible effects rather than preclude the future emplacement of caverns. To the extent possible, major anomalous zones and salt stock boundaries should be avoided. Shear zones along overhangs may be particularly hazardous, and otherwise unknown valleys in the top of salt may occur along shear zones. These zones often can be mapped geophysically, especially with high-resolution seismic techniques.

  1. San Francisco Bay Map Collection / Neal Harlow (collector)

    E-Print Network [OSTI]

    Handy, Todd C.

    San Francisco Bay Map Collection / Neal Harlow (collector) Last revised October 2011 University / Physical Description o Collector's Biographical Sketch o Scope and Content o Notes Catalogue entry (UBC Library catalogue) #12;Collection Description San Francisco Bay Map Collection / Neal Harlow (collector

  2. Observations of remote and local forcing in Galveston Bay, Texas 

    E-Print Network [OSTI]

    Guannel, Gregory

    2001-01-01T23:59:59.000Z

    Lcvcl Subtidal Variability. Water Level: Contour Plots, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water Level: E/W and N/S Wind Stress. Water Level: SP and SN Wind Stress. . . . . . . . . . . . , . . . . . . . Water Level...: Conclusions. Response of Galveston Bay to Forcing: Water Surface Setup Subtidal Variability. Water Surlace Setup: Contour Plots Water Surl ace Setup: SP and SN Wind Stress. . . . . . . . . Water Surface Setup: Conclusions Response of Galveston Bay...

  3. MFR PAPER 1074 Effects of Prudhoe Bay Crude Oil on

    E-Print Network [OSTI]

    MFR PAPER 1074 Effects of Prudhoe Bay Crude Oil on Molting Tanner Crabs, Chionoecetes bairdi JOHN F bairdi , from Alaska walers were exposed 10 Prudhoe Bay crude oil in sIalic bioassays ill Ih e laboralory. Crabs in bOlh slages were similarly susceplible 10 crude oil; Ihe eSlimaled 48-hour TLIIl (Illedian

  4. 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).

  5. Glacier Bay Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEI Reference LibraryAdd toWell2008) |GigaCrete Inc JumpGillardGinerBay

  6. Clean Cities: Tampa Bay Clean Cities coalition

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z CPlasma0 12DenverNorthernSouthTampa Bay Clean Cities

  7. Tuscola Bay Wind | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri Global Energy LLC Place: Dallas, Texas2022Wind Farm Jump to:Tuscola Bay

  8. Massachusetts Bay Transportation Authority | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLu an Group JumpNewMassachusetts Bay Transportation Authority Jump

  9. Chesapeake Bay Test Site | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia:PowerCER.png El CER es unaChelmsford,Volcanic NationalValleyBay Test

  10. Bay Solar Power Design | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation in Carbon CaptureAtriaPower SystemsRhode Island:BatteryBatticBay

  11. 1. Detect ground faults in PV arrays mounted on the roofs of 2. Interrupt the fault current

    E-Print Network [OSTI]

    Johnson, Eric E.

    1. Detect ground faults in PV arrays mounted on the roofs of dwellings 2. Interrupt the fault current 3. Indicate that a ground fault had occurred 4. Disconnect the faulted part of the PV array 5. "Crowbar" (short-circuit) the PV array The original GFPD prototype was developed in two versions that were

  12. 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

    OF FIELD MAPPING Methods . Thrust Faults . The Wind Ridge Thrust Fault System The Red Rocks Thrust Fault System CLAY MODEL STUDIES Purpose and Description Model Results DISCUSSION OF RESULTS Kinematics of the Red Rocks Thrust Fault Termination... . Kinematics of the Southern Wind Ridge Thrust Fault . . . A Conceptual Model of the Red Rocks Thrust Fault Termination Implications of the Red Rocks Fault Termination . . . . . . Page V1 V11 1X X1 X11 7 9 17 18 18 21 24 27 35 35 38 49 49...

  13. Zone refining of plutonium metal

    SciTech Connect (OSTI)

    Blau, M.S.

    1994-08-01T23:59:59.000Z

    The zone refining process was applied to Pu metal containing known amounts of impurities. Rod specimens of plutonium metal were melted into and contained in tantalum boats, each of which was passed horizontally through a three-turn, high-frequency coil in such a manner as to cause a narrow molten zone to pass through the Pu metal rod 10 times. The impurity elements Co, Cr, Fe, Ni, Np, U were found to move in the same direction as the molten zone as predicted by binary phase diagrams. The elements Al, Am, and Ga moved in the opposite direction of the molten zone as predicted by binary phase diagrams. As the impurity alloy was zone refined, {delta}-phase plutonium metal crystals were produced. The first few zone refining passes were more effective than each later pass because an oxide layer formed on the rod surface. There was no clear evidence of better impurity movement at the slower zone refining speed. Also, constant or variable coil power appeared to have no effect on impurity movement during a single run (10 passes). This experiment was the first step to developing a zone refining process for plutonium metal.

  14. 3, 335364, 2006 Hyporheic zone

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    HESSD 3, 335­364, 2006 Hyporheic zone dynamics E. Hoehn and O. A. Cirpka Title Page Abstract dynamics in two alluvial flood plains of the Southern Alps using water temperature and tracers E. Hoehn: E. Hoehn (hoehn@eawag.ch) 335 #12;HESSD 3, 335­364, 2006 Hyporheic zone dynamics E. Hoehn and O. A

  15. 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.

  16. 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

  17. Microscopic feather fractures in the faulting process

    E-Print Network [OSTI]

    Conrad, Robert Eugene

    1974-01-01T23:59:59.000Z

    . Naximum compressive stress trajectories in a photoelastic model are shown by solid lines. Short lines are drawn on isoclinics in crossed polarized light at 10' intervals of rotation. Load axis is N-S. stress (o'I) trajectories curve near the fault..., 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...

  18. Fault Detection and Load Distribution for the Wind Farm Challenge

    SciTech Connect (OSTI)

    Borchehrsen, Anders B.; Larsen, Jesper A.; Stoustrup, Jakob

    2014-08-24T23:59:59.000Z

    In this paper a fault detection system and a fault tolerant controller for a wind farm model. The wind farm model used is the one proposed as a public challenge. In the model three types of faults are introduced to a wind farm consisting of nine turbines. A fault detection system designed, by taking advantage of the fact that within a wind farm several wind turbines will be operating under all most identical conditions. The turbines are then grouped, and then turbines within each group are used to generate residuals for turbines in the group. The generated residuals are then evaluated using dynamical cumulative sum. The designed fault detection system is cable of detecting all three fault types occurring in the model. But there is room for improving the fault detection in some areas. To take advantage of the fault detection system a fault tolerant controller for the wind farm has been designed. The fault tolerant controller is a dispatch controller which is estimating the possible power at each individual turbine and then setting the reference accordingly. The fault tolerant controller has been compared to a reference controller. And the comparison shows that the fault tolerant controller performance better in all measures. The fault detection and a fault tolerant controller has been designed, and based on the simulated results the overall performance of the wind farm is improved on all measures. Thereby this is a step towards improving the overall performance of current and future wind farms.

  19. Fault-tolerant Sensor Network based on Fault Evaluation Matrix and Compensation for Intermittent Observation

    E-Print Network [OSTI]

    Fault-tolerant Sensor Network based on Fault Evaluation Matrix and Compensation for Intermittent-tolerant sensor network configuration problem for a target navigation. A sensor network system consists of many sensor nodes and its network connections. Each sensor node can exchange information by wireless

  20. 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.

  1. Subenvironments of deposition in San Antonio Bay, Texas

    E-Print Network [OSTI]

    Hall, Gary Lynn

    1973-01-01T23:59:59.000Z

    with the Muddy Sandstone at Bell Creek Field, Montana. CONCLUSIONS. REFERENCES CITED VITA 107 108 108 ill 117 117 121 122 123 124 124 126 128 128 128 132 135 138 142 LIST OF TABLES TABLE 1 Mineralogical Composition of Montmori lloni tie.... The usual source of high salinity water enters from the Gulf of Mexico through Pass Cavallo and mixes with Matagorda Bay waters. This water passes westward through Espiritu Santo Bay into San Antonio Bay, where it appears to turn and move northwestward...

  2. Sandia National Laboratories: critical marginal ice zone

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

    marginal ice zone NASA Award for Marginal Ice Zone Observations and Process Experiment (MIZOPEX) On February 24, 2015, in Analysis, Climate, Modeling & Analysis, Monitoring, News,...

  3. 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

  4. Faulted joints: kinematics, displacementlength scaling relations and criteria for their identication

    E-Print Network [OSTI]

    Engelder, Terry

    and kinematics based on two sets of joints, pinnate joints and fault striations, reveal that some mesoscale faults (i.e., faults without linked fault segments) at the mesoscale: ªneoformed faultsº which form

  5. Robust Condition Monitoring and Fault Diagnosis of Variable Speed Induction Motor Drives

    E-Print Network [OSTI]

    Choi, Seungdeog

    2012-02-14T23:59:59.000Z

    The main types of faults studied in the literature are commonly categorized as electrical faults and mechanical faults. In addition to well known faults, the performance of a diagnostic algorithm and its operational reliability in harsh environments...

  6. A Hybrid Model Based and Statistical Fault Diagnosis System for Industrial Process

    E-Print Network [OSTI]

    Lin, Chen-Han

    2014-11-21T23:59:59.000Z

    This thesis presents a hybrid model based and statistical fault diagnosis system, which applied on the nonlinear three-tank model. The purpose of fault diagnosis is generating and analyzing the residual to find out the fault occurrence. This fault...

  7. admiralty bay king: Topics by E-print Network

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

    influence May Point, a distance of 2O,miles, the crabs are sought at Ewing Neck, West Creek, East Creek 123 Nonparametric Bayes Applications to Biostatistics David B. Dunson...

  8. BayesDB : querying the probable implications of tabular data

    E-Print Network [OSTI]

    Baxter, Jay

    2014-01-01T23:59:59.000Z

    BayesDB, a Bayesian database table, lets users query the probable implications of their tabular data as easily as an SQL database lets them query the data itself. Using the built-in Bayesian Query Language (BQL), users ...

  9. atlantic lisbon bay: Topics by E-print Network

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

    guests of the Hudsons Bay Company, and on the second of the Royal Canadian Mounted Police. In addition the Royal Canadian Air Force kindly flew us to several areas well away...

  10. WIND EFFECTS ON CHEMICAL SPILL IN ST ANDREW BAY SYSTEM

    E-Print Network [OSTI]

    Chu, Peter C.

    WIND EFFECTS ON CHEMICAL SPILL IN ST ANDREW BAY SYSTEM PETER C. CHU, PATRICE PAULY Naval Can easily reach 20 m/s and more during hurricane events #12;Water Quality Management and Analysis

  11. Seagrass habitat utilization by fishes in Christmas Bay, Texas 

    E-Print Network [OSTI]

    Crotwell, Patricia Lynn

    1997-01-01T23:59:59.000Z

    Fishes in Christmas Bay, TX were collected during April 1994 through March 1995 to: 1) assess temporal variability in their density, biomass, and diversity; 2) define the relationship between variability in fish population parameters...

  12. Seagrass habitat utilization by fishes in Christmas Bay, Texas

    E-Print Network [OSTI]

    Crotwell, Patricia Lynn

    1997-01-01T23:59:59.000Z

    Fishes in Christmas Bay, TX were collected during April 1994 through March 1995 to: 1) assess temporal variability in their density, biomass, and diversity; 2) define the relationship between variability in fish population parameters...

  13. FRACTURE MODELING AND FAULT ZONE CHARACTERISTICS APPLIED TO RESERVOIR CHARACTERIZATION OF THE RULISON GAS FIELD,

    E-Print Network [OSTI]

    that incorporates geologic well data, three dimensional seismic data, geomechanical analysis, and well production been calculated based on available well data. Incorporation of geomechanical stresses allows the known geomechanical properties of the reservoir interval. Ultimately, this model highlights

  14. Geomechanical effects on CO2 leakage through fault zones during large-scale underground injection

    E-Print Network [OSTI]

    Rinaldi, A.P.

    2014-01-01T23:59:59.000Z

    Rutqvist, J. , 2012. The Geomechanics of CO 2 Storage in2001. Fully coupled geomechanics and fluid-flow analysis ofUS Rock Mechanics, Geomechanics Symposium. San Francisco, 23

  15. Trapping capacity of fault zones, downdip Yegua Formation, Texas Gulf Coast basin

    E-Print Network [OSTI]

    Hintz, Jena Christine

    2001-01-01T23:59:59.000Z

    , Pittman's method gave the most reliable results for predicting capillary pressure and therefore the height of the oil column. However, all methods for predicting capillary pressure worked well for samples with porosities above 20% and permeabilities above...

  16. Development of a Hydrologic Characterization Technology for Fault Zones Phase II 2nd Report

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2013-01-01T23:59:59.000Z

    interwell response to drilling, well-tests, long-termcores from deep drilling, and additional well data fromresponses of different wells to drilling and pump tests will

  17. Visualization of microcrack anisotropy in granite affected by a fault zone, using confocal laser scanning microscope

    E-Print Network [OSTI]

    Onishi, Celia T.; Shimizu, Ichiko

    2004-01-01T23:59:59.000Z

    1996. Permeability in anisotropic granite under hydrostaticP. , 1995. Microfractography of granite rocks under confocalIllinois UHP3 drillhole granite and a comparison with other

  18. Development of a Hydrologic Characterization Technology for Fault Zones Phase II 2nd Report

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2013-01-01T23:59:59.000Z

    Original seismic reflection survey interpretation for SR-1(Original seismic reflection survey interpretation for SR-1(seismic reflection profiling along three survey lines north and south of the LBNL site. One interpretation

  19. Development of a Hydrologic Characterization Technology for Fault Zones Phase II 2nd Report

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2013-01-01T23:59:59.000Z

    Original seismic reflection survey interpretation for SR-1(Original seismic reflection survey interpretation for SR-1(and seismic reflection profiling along three survey lines north and south of the LBNL site. One interpretation

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

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2014-01-01T23:59:59.000Z

    properties and silica diagenesis , PhD dissertation:F.T. , 2007 – Sediments, diagenesis, and sedimentary rocks,changes related to burial diagenesis and thermal alteration

  1. Structure and tectonics of the Sumatra Fault Zone-Sundra Trench junction

    E-Print Network [OSTI]

    Handayani, Lina

    1999-01-01T23:59:59.000Z

    been compiled. These data consist of topography, free-air gravity, seismic refection profiles, and seismicity. Gravity analysis and modeling reveals that the Sunda Strait forearm region lacks accretionary prism development and instead consists of lower...

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

    Open Energy Info (EERE)

    fields. Authors Lou, M.; Rial, J.A. ; Malin and P.E. Published Journal Geophysics, 711997 DOI Not Provided Check for DOI availability: http:crossref.org Citation Lou, M.;...

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOf KilaueaInformation Other AlternativePark,CedarPower Inc Jump

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose BendMiasole IncMinuteman WindMoana Geothermal AreaImpacts

  5. Stepover or Relay Ramp in Normal Fault Zones | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt LtdShawangunk,SoutheastSt.Steep Gradient Flume JumpTexas:Information

  6. Pull-Apart in Strike-Slip Fault Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethod Jump to:ThisPublic PowerKentucky: Energy

  7. Investigation of tidal power, cobscook bay, maine. Reconnaissance report

    SciTech Connect (OSTI)

    Not Available

    1980-08-01T23:59:59.000Z

    Cobscook Bay is located in Eastern, Maine, near Eastport. The bay experiences an average tide range of 18 feet and has a surface area of about 40 square miles at high tide. Single pool, single effect projects have been analyzed. Two projects, one having an installed capacity of 165 Mw and the other, 195 Mw were found to be economically feasible when forecasted, fuel escalation costs were considered.

  8. Fish assemblages on coral reefs in Guanaja, Bay Islands, Honduras

    E-Print Network [OSTI]

    Mahendran, Christopher Kandiah

    1999-01-01T23:59:59.000Z

    FISH ASSEMBLAGES ON CORAL REEFS IN GUANAJA, BAY ISLANDS, HONDURAS A Thesis by CHRISTOPHER KANDIAH MAHENDRAN 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 August 1999 Major Subject: Wildlife and Fisheries Sciences FISH ASSEMBLAGES ON CORAL REEFS IN GUANAJA, BAY ISLANDS, HONDURAS A Thesis by CHRISTOPHER KANDIAH MAHENDRAN Submitted to Texas A&M University in partial fulfillment...

  9. Petroleum hydrocarbon-degrading bacteria in the Galveston Bay system 

    E-Print Network [OSTI]

    Schropp, Steven James

    1979-01-01T23:59:59.000Z

    PETROLEUM HYDRQCARBOiV-DEGRADING BACTERIA IN THE GALVESTON BAY SYSTEM A Thesis by STEVEN JAMES SCHROPP Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIFNCE... December 1979 Major Subject: Biology PETROLEUM HYDROCARBON-DEGRADING BACTERIA IN THE GALVESTON BAY SYSTEM A Thesis by STEVEN JAMES SCHROPP Approved as to style and content by: (Co-Chairman of Committee) '( ~CA. ( -Chairman of Committee) (Head...

  10. A combination of air and fluid drilling technique for zones of lost circulation in the Black Warrior Basin

    SciTech Connect (OSTI)

    Graves, S.L.; Niederhofer, J.D.; Beavers, W.M.

    1986-02-01T23:59:59.000Z

    Structural geologic information available for the coal-bearing formations in the Black Warrior basin documents the occurrence of numerous fault and fracture zones. A combination air/fluid drilling technique may be advantageous to coalbed-methane operations in this and other areas with similar hydrologic and geologic conditions. The authors successfully used this technique recently on coalbed-methane wells in Tuscaloosa County, AL.

  11. 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 ...

  12. 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

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

    E-Print Network [OSTI]

    Williamson, Shawn Collin

    1996-01-01T23:59:59.000Z

    of the present study suggest that the Criner fault is an old tectonic feature with a deceptively youthful geomorphic appearance. Differential erosion has likely exhumed the Criner fault-line scarp in the resistant Ordovician limestone of the Criner Hills...

  14. Design and analysis of a fault tolerant network processor

    E-Print Network [OSTI]

    Desai, Shaishav A

    1998-01-01T23:59:59.000Z

    This thesis investigates the effect of transient faults on a processor and proposes on-chip fault tolerant design techniques to improve its reliability. The target processor is a general 32-bit, four stage pipeline, dual context RISC style design...

  15. 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

  16. East-west faults due to planetary contraction

    E-Print Network [OSTI]

    Beuthe, Mikael

    2010-01-01T23:59:59.000Z

    Contraction, expansion and despinning have been common in the past evolution of Solar System bodies. These processes deform the lithosphere until it breaks along faults. The type and orientation of faults are usually determined under the assumption of a constant lithospheric thickness, but lithospheric thinning can occur at the equator or at the poles due either to latitudinal variation in solar insolation or to localized tidal dissipation. Using thin elastic shells with variable thickness, I show that the equatorial thinning of the lithosphere transforms the homogeneous and isotropic fault pattern caused by contraction/expansion into a pattern of faults striking east-west, preferably formed in the equatorial region. By contrast, lithospheric thickness variations only weakly affect the despinning faulting pattern consisting of equatorial strike-slip faults and polar normal faults. If contraction is added to despinning, the despinning pattern first shifts to thrust faults striking north-south and then to thrus...

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

    E-Print Network [OSTI]

    Mrkic, Jasna

    1994-01-01T23:59:59.000Z

    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...

  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. Kirchhoff integrals and Fresnel zones Ludek Klimes

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Kirchhoff integrals and Fresnel zones LudŸek KlimeŸs Department of Geophysics, Charles University of discrete values necessary for the numerical quadra­ ture. The Fresnel zones are then derived as the minimum of Fresnel zones is purely local, independent of the reference travel times. The definition of Fresnel zones

  20. Experimental characterization of faults on low-voltage systems

    E-Print Network [OSTI]

    Ahmed, Jubayer

    1992-01-01T23:59:59.000Z

    was to simulate a con- trolled arcing fault. Hence, the arcgap was maintained constant for a particular test. A tungsten welding rod was used as the electrode because it does not melt easily. This test was performed on a. single-phase system with 240 volts... better understanding of the problem. These arcing faults and high impedance and incipient faults constitute the previously mentioned low-current faults. Journal model is IEEE Transactions on Power Delivery. Although these problems have been...

  1. Fault seal analysis of Okan and Meren fields, Nigeria

    SciTech Connect (OSTI)

    Eisenberg, R.A. [Chevron Petroleum Technology Co., La Habra, CA (United States); Brenneman, R.J. [Chevron Overseas Petroleum Co., San Ramon, CA (United States); Adeogba, A.A. [Chevron Nigeria Ltd., Lagos (Nigeria)

    1995-08-01T23:59:59.000Z

    The sealing capacity and the dynamic seal behavior of faults between juxtaposed reservoirs were analyzed for Okan and Meren fields, offshore Nigeria. In both fields correlations were found between reservoir performance, juxtaposed fluid types, oil geochemistry, interpreted fluid contact relationships, fault sealing/leaking condition, and calculated smear gouge ratios. Integration of these data has been invaluable in quantifying fault seal risk and may effect depletion strategies for fault-juxtaposed reservoirs within these fields. Fault plane sections defined reservoir juxtapositions and aided visualization of potential cross-fault spill points. Smear gouge ratios calculated from E-logs were used to estimate the composition of fault-gouge materials between the juxtaposed reservoirs. These tools augmented interpretation of seal/nonseal character based on fluid contact relationships in proved reservoirs and, in addition, were used to quantify fault seal risk of untested fault-dependent closures in Okan. The results of these analyses were then used to interpret production-induced fault seal breakdown within the G-sands and also to risk seal integrity of fault dependent closures within the untested O-sands in an adjacent, upthrown fault block. Within this fault block the presence of potential fault intersection leak points and large areas of sand/sand juxtaposition with high smear gouge ratios (low sealing potential) limits potential reserves within the O-sand package. In Meren Field the E- and G-sands are juxtaposed, on different pressure decline, geochemically distinct, and are characterized by low smear gouge ratios. In contrast, specific G- and H-sands, juxtaposed across the same fault, contain similar OOWCs and are characterized by high smear gouge ratios. The cross-sealing and/or cross-leaking nature of compartment boundaries at Meren is related to fault displacement variation and the composition of displaced stratigraphy.

  2. Detachment Faulting & Geothermal Resources- Pearl Hot Spring, NV

    Broader source: Energy.gov [DOE]

    Detachment Faulting & Geothermal Resources - Pearl Hot Spring, NV presentation at the April 2013 peer review meeting held in Denver, Colorado.

  3. Photovoltaic ground fault and blind spot electrical simulations.

    SciTech Connect (OSTI)

    Flicker, Jack David; Johnson, Jay

    2013-06-01T23:59:59.000Z

    Ground faults in photovoltaic (PV) systems pose a fire and shock hazard. To mitigate these risks, AC-isolated, DC grounded PV systems in the United States use Ground Fault Protection Devices (GFPDs), e.g., fuses, to de-energize the PV system when there is a ground fault. Recently the effectiveness of these protection devices has come under question because multiple fires have started when ground faults went undetected. In order to understand the limitations of fuse-based ground fault protection in PV systems, analytical and numerical simulations of different ground faults were performed. The numerical simulations were conducted with Simulation Program with Integrated Circuit Emphasis (SPICE) using a circuit model of the PV system which included the modules, wiring, switchgear, grounded or ungrounded components, and the inverter. The derivation of the SPICE model and the results of parametric fault current studies are provided with varying array topologies, fuse sizes, and fault impedances. Closed-form analytical approximations for GFPD currents from faults to the grounded current carrying conductor-known as %E2%80%9Cblind spot%E2%80%9D ground faults-are derived to provide greater understanding of the influence of array impedances on fault currents. The behavior of the array during various ground faults is studied for a range of ground fault fuse sizes to determine if reducing the size of the fuse improves ground fault detection sensitivity. The results of the simulations show that reducing the amperage rating of the protective fuse does increase fault current detection sensitivity without increasing the likelihood of nuisance trips to a degree. Unfortunately, this benefit reaches a limit as fuses become smaller and their internal resistance increases to the point of becoming a major element in the fault current circuit.

  4. 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.

  5. A combination air and fluid drilling technique for zones of lost circulation in the Black Warrior Basin

    SciTech Connect (OSTI)

    Graves, S.L.; Beavers, W.M.; Niederhofer, J.D.

    1984-05-01T23:59:59.000Z

    During the drilling of coalbed methane wells in the Black Warrior Basin, the possibility of penetrating a highly permeable fault or fracture zone is likely. These fracture zones, and occasionally the faults, are the source of large quantities of water. When air is being used as the drilling medium, problems may arise with producing and disposing of the formation water. When rotary drilling with fluid, loss of returns may also become a problem. The use of conventional lost circulation materials have been demonstrated-in this situation--to be both ineffective and expensive. Also, lost circulation materials substantially reduce the effective secondary permeability of the coal seams, severely limiting the ultimate methane production potential of the well. If the wellbore is generally competent, one inexpensive solution to the problem is to drill with air to a point where surface recovery tanks are full of produced formation water. Drilling can continue by switching to conventional fluid drilling until the surface storage tanks are pumped dry. This process of alternating fluid and air drilling can be continued until reaching total depth. Structural geologic information, available for the coal-bearing formations in the Black Warrior Basin, documents the occurrence of numerous fault and fracture zones. A combination air and fluid drilling technique may prove to be advantageous to coalbed methane operations in this and other areas with similar hydrologic and geologic conditions. Recently, this technique was successfully utilized on TRW, Inc., coalbed methane wells in Tuscaloosa County, Alabama.

  6. 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

  7. On Distributed Fault-Tolerant Detection in Wireless Sensor Networks

    E-Print Network [OSTI]

    Huang, Yinlun

    On Distributed Fault-Tolerant Detection in Wireless Sensor Networks Xuanwen Luo, Student Member problems for distributed fault-tolerant detection in wireless sensor networks: 1) how to address both it possible to perform energy- efficient fault-tolerant detection in a wireless sensor network. Index Terms

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

    E-Print Network [OSTI]

    Lehman, Brad

    , MPPT of the PV inverters, high fault impedance, or degradation of solar cells [1]. Without proper fault Abstract-- Solar photovoltaic (PV) arrays are unique power sources that may have uncleared fault current when utilizing conventional overcurrent protection devices. To monitor the PV operation and detect

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

    E-Print Network [OSTI]

    Boyer, Edmond

    since their frequency resolution is limited and additional post-processing algorithms are required of bearing faults. Index Terms--Induction machine, faults detection, bearing faults, stator current that avoids the use of extra sensors since the stator currents are usually available and inexpensive

  10. RIS-M-2311 AUTOMATIC FAULT TREE CONSTRUCTION WITH RIKKE

    E-Print Network [OSTI]

    RISØ-M-2311 AUTOMATIC FAULT TREE CONSTRUCTION WITH RIKKE A COMPENDIUM OF EXAMPLES, VOLUME I BASIC MODELS J.R. Taylor Abstract. Examples of automatically constructed fault trees are given. In this first are intended to illustrate the prin- ciples of fault tree construction using the RIKKE failure analysis system

  11. Ris-M-2311 AUTOMATIC FAULT TREE CONSTRUCTION WITH RIKKE

    E-Print Network [OSTI]

    Risø-M-2311 Vol. 2 AUTOMATIC FAULT TREE CONSTRUCTION WITH RIKKE A COMPENDIUM OF EXAMPLES. VOLUME 2. CONTROL AND SAFETY LOOPS. J.R. Taylor Abstract. This second volume describes the construction of fault In this volume, examples of HIKKE fault tree construction including loops are given. The principles involved were

  12. 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

  13. Identifying Security Fault Reports via Text Mining Michael Gegick, 2

    E-Print Network [OSTI]

    Young, R. Michael

    Identifying Security Fault Reports via Text Mining 1 Michael Gegick, 2 Pete Rotella, 1 Tao Xie 1 contains fault reports (FRs) collected from various sources such as development teams, test teams, and end-users. Software or security engineers manually analyze the FRs to label the subset of FRs that are security fault

  14. 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

  15. 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

    . One method based on increases in third and fifth harmonic symmetrical current components under high impedance fault conditions has been proposed by Balser et. Journal model is IEEE Transactions on Power Delivery. al, of Power Technologies Inc [1...

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

    E-Print Network [OSTI]

    Thadhlani, Ajaykumar A

    2001-01-01T23:59:59.000Z

    coupled lines. To cope up with these realistic testing problems, it is necessary to model the circuit defects by considering the capacitively coupling between lines. This needs a better fault model which can incorporate the local defects (such...

  17. We develop a microprocessor design that tolerates hard faults, including fabrication defects and in-field faults,

    E-Print Network [OSTI]

    Sorin, Daniel J.

    1 Abstract We develop a microprocessor design that tolerates hard faults, including fabrication defects and in-field faults, by leveraging existing microprocessor redundancy. To do this, we must: detect FDUs with hard faults. In our reliable microprocessor design, we use DIVA dynamic verification

  18. Thermal anomaly near the Aigio fault, Gulf of Corinth, Greece, maybe due to convection below the fault

    E-Print Network [OSTI]

    Thermal anomaly near the Aigio fault, Gulf of Corinth, Greece, maybe due to convection below intersecting the active Aigio fault, Corinth Rift, Greece. The heat flow is 53 mW/m2 , indicating of Corinth, Greece, maybe due to convection below the fault, Geophys. Res. Lett., 34, L06314, doi:10

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

    E-Print Network [OSTI]

    Roma "La Sapienza", Università 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

  20. 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.

  1. Multi-directional 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)

    2010-11-23T23:59:59.000Z

    An apparatus, program product and method checks for nodal faults in a group of nodes comprising a center node and all adjacent nodes. The center node concurrently communicates with the immediately adjacent nodes in three dimensions. The communications are analyzed to determine a presence of a faulty node or connection.

  2. Multi-directional fault detection system

    DOE Patents [OSTI]

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

    2010-06-29T23:59:59.000Z

    An apparatus, program product and method checks for nodal faults in a group of nodes comprising a center node and all adjacent nodes. The center node concurrently communicates with the immediately adjacent nodes in three dimensions. The communications are analyzed to determine a presence of a faulty node or connection.

  3. 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

  4. 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.

  5. 54 MAY | 2012 Gearbox Fault Detection

    E-Print Network [OSTI]

    Kusiak, Andrew

    , research in fault identification and condition monitoring is war- ranted. In this study, detecting wind of a test wind turbine. The gearbox was retested at the Dynamometer Test Facility (DTF) at NREL. To retest the gearbox, the complete nacelle, and the drive train of the test wind turbine were installed at the DTF

  6. Fault-tolerant quantum computation by anyons

    E-Print Network [OSTI]

    A. Yu. Kitaev

    1997-07-09T23:59:59.000Z

    A two-dimensional quantum system with anyonic excitations can be considered as a quantum computer. Unitary transformations can be performed by moving the excitations around each other. Measurements can be performed by joining excitations in pairs and observing the result of fusion. Such computation is fault-tolerant by its physical nature.

  7. Fault-Tolerant Spanners: Better and Simpler

    E-Print Network [OSTI]

    Dinitz, Michael

    2011-01-01T23:59:59.000Z

    A natural requirement of many distributed structures is fault-tolerance: after some failures, whatever remains from the structure should still be effective for whatever remains from the network. In this paper we examine spanners of general graphs that are tolerant to vertex failures, and significantly improve their dependence on the number of faults $r$, for all stretch bounds. For stretch $k \\geq 3$ we design a simple transformation that converts every $k$-spanner construction with at most $f(n)$ edges into an $r$-fault-tolerant $k$-spanner construction with at most $O(r^3 \\log n) \\cdot f(2n/r)$ edges. Applying this to standard greedy spanner constructions gives $r$-fault tolerant $k$-spanners with $\\tilde O(r^{2} n^{1+\\frac{2}{k+1}})$ edges. The previous construction by Chechik, Langberg, Peleg, and Roddity [STOC 2009] depends similarly on $n$ but exponentially on $r$ (approximately like $k^r$). For the case $k=2$ and unit-length edges, an $O(r \\log n)$-approximation algorithm is known from recent work of D...

  8. 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 stack—from the application, math libraries, and programming language runtime to other common system software such as jobs schedulers, resource managers, and monitoring tools.

  9. 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.

  10. Overlap zoned electrically heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Chapman, Mark R [Brighton, MI

    2011-07-19T23:59:59.000Z

    A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than or equal to one, and wherein the N zones and the M sub-zones are arranged in P layers, where P is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

  11. 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.

  12. Quantification of sediment bed - water column exchange processes in the South San Francisco Bay estuary

    E-Print Network [OSTI]

    Gladding, Steven Michael

    2011-01-01T23:59:59.000Z

    Hydraulic Mining 1.2.2. Dredging 1.2.3. Contaminants 1.2.4.of the sediment bed of the Bay (see Section Dredging Largescale dredging operations have occurred in the Bay for more

  13. Energy Secretary Steven Chu to Travel to Bay Area to Highlight...

    Energy Savers [EERE]

    Steven Chu to Travel to Bay Area to Highlight State of the Union Address, Commitment to Clean Energy Energy Secretary Steven Chu to Travel to Bay Area to Highlight State of the...

  14. The Daya Bay Nuclear Plant Project in the Light of International Environmental Law

    E-Print Network [OSTI]

    Mushkat, Roda

    1990-01-01T23:59:59.000Z

    result from locating a nuclear plant so close to the Hongat 1292 (1975). THE DA YA BAY NUCLEAR PLANT PROJECT national1986) (H.K. ). THE DA YA BAY NUCLEAR PLANT PROJECT IV. THE "

  15. Education Program for Improved Water Quality in Copano Bay Final Report

    E-Print Network [OSTI]

    Berthold, A.; Moench, E.; Wagner, K.; Paschal, J.

    2012-05-17T23:59:59.000Z

    The Copano Bay watershed covers approximately 1.4 million acres encompassing portions of Karnes, Bee, Goliad, Refugio, San Patricio and Aransas counties. Copano Bay and its main tributaries, the Mission and Aransas rivers, were placed on the Texas...

  16. Text classification Naive Bayes NB theory Evaluation of TC Web Search and Text Mining

    E-Print Network [OSTI]

    Gray, Alexander

    Bayes NB theory Evaluation of TC Take-away today Text classification: definition & relevance theory Evaluation of TC Take-away today Text classification: definition & relevance to information: definition & relevance to information retrieval Naive Bayes: simple baseline text classifier Theory

  17. Zone refining of plutonium metal

    SciTech Connect (OSTI)

    NONE

    1997-05-01T23:59:59.000Z

    The purpose of this study was to investigate zone refining techniques for the purification of plutonium metal. The redistribution of 10 impurity elements from zone melting was examined. Four tantalum boats were loaded with plutonium impurity alloy, placed in a vacuum furnace, heated to 700{degrees}C, and held at temperature for one hour. Ten passes were made with each boat. Metallographic and chemical analyses performed on the plutonium rods showed that, after 10 passes, moderate movement of certain elements were achieved. Molten zone speeds of 1 or 2 inches per hour had no effect on impurity element movement. Likewise, the application of constant or variable power had no effect on impurity movement. The study implies that development of a zone refining process to purify plutonium is feasible. Development of a process will be hampered by two factors: (1) the effect on impurity element redistribution of the oxide layer formed on the exposed surface of the material is not understood, and (2) the tantalum container material is not inert in the presence of plutonium. Cold boat studies are planned, with higher temperature and vacuum levels, to determine the effect on these factors. 5 refs., 1 tab., 5 figs.

  18. Anthropogenic Influence on Recent Bathymetric Change in West-Central San Francisco Bay

    E-Print Network [OSTI]

    Barnard, Patrick; Kvitek, Rikk

    2010-01-01T23:59:59.000Z

    Bay coastal system. Sedimentology, In: Li M, Sherwood C,Publication Book on Shelf Sedimentology. 33 p. Fregoso TA,

  19. Onsite data processing and monitoring for the Daya Bay Experiment

    E-Print Network [OSTI]

    Ying-Biao Liu; Miao He; Bei-Jiang Liu; Meng Wang; Qiu-Mei Ma; Fa-Zhi Qi; Shan Zeng

    2014-06-09T23:59:59.000Z

    The Daya Bay Reactor Neutrino Experiment started running on September 23, 2011. The offline computing environment, consisting of 11 servers at Daya Bay, was built to process onsite data. With current computing ability, onsite data processing is running smoothly. The Performance Quality Monitoring system (PQM) has been developed to monitor the detector performance and data quality. Its main feature is the ability to efficiently process multi-data-stream from three experimental halls. The PQM processes raw data files from the Daya Bay data acquisition system, generates and publishes histograms via a graphical web interface by executing the user-defined algorithm modules, and saves the histograms for permanent storage. The fact that the whole process takes only around 40 minutes makes it valuable for the shift crew to monitor the running status of all the sub-detectors and the data quality.

  20. Heavy metal concentration in bay sediments of Japan

    SciTech Connect (OSTI)

    Fukue, Masaharu; Kato, Yoshihisa; Nakamura, Takaaki [Tokai Univ., Shimizu (Japan); Yamasaki, Shoichi [Aoki Marine Ltd., Fukushima, Osaka (Japan)

    1995-12-31T23:59:59.000Z

    Because industry discharge wastes into the sea, marine sediments can be contaminated with various kinds of hazardous and toxic substances. This study discusses how the degree of pollution of heavy metals affects the marine sediments from Osaka Bay and Tokyo Bay. In this study, the concentrations of various metals, such as manganese, iron, aluminum, titanium, vanadium, copper, phosphorus, etc., were measured from sediment samples obtained from different sites in the bays. However, the results had to be corrected because background concentrations for each metal differ with site location and grain size characteristics. The large difference between background and individual concentrations at various soil depths indicates that the surface layers of the seabed are significantly polluted with some species of heavy metal and other elements.

  1. Naval submarine base Kings Bay and Bangor soil evaluations.

    SciTech Connect (OSTI)

    Holcomb, David Joseph; Patteson, Raymond; Wesenberg, Donald L.; Attaway, Stephen W.

    2004-08-01T23:59:59.000Z

    This report provides soil evaluation and characterization testing for the submarine bases at Kings Bay, Georgia, and Bangor, Washington, using triaxial testing at high confining pressures with different moisture contents. In general, the samples from the Bangor and Kings Bay sites appeared to be stronger than a previously used reference soil. Assuming the samples of the material were representative of the material found at the sites, they should be adequate for use in the planned construction. Since soils can vary greatly over even a small site, a soil specification for the construction contractor would be needed to insure that soil variations found at the site would meet or exceed the requirements. A suggested specification for the Bangor and Kings Bay soils was presented based on information gathered from references plus data obtained from this study, which could be used as a basis for design by the construction contractor.

  2. Meta learning of bounds on the Bayes classifier error

    E-Print Network [OSTI]

    Moon, Kevin R; Hero, Alfred O

    2015-01-01T23:59:59.000Z

    Meta learning uses information from base learners (e.g. classifiers or estimators) as well as information about the learning problem to improve upon the performance of a single base learner. For example, the Bayes error rate of a given feature space, if known, can be used to aid in choosing a classifier, as well as in feature selection and model selection for the base classifiers and the meta classifier. Recent work in the field of f-divergence functional estimation has led to the development of simple and rapidly converging estimators that can be used to estimate various bounds on the Bayes error. We estimate multiple bounds on the Bayes error using an estimator that applies meta learning to slowly converging plug-in estimators to obtain the parametric convergence rate. We compare the estimated bounds empirically on simulated data and then estimate the tighter bounds on features extracted from an image patch analysis of sunspot continuum and magnetogram images.

  3. A Transect of Glacier Bay Ocean Currents Measured by Acoustic Doppler Current Profiler (ADCP)

    E-Print Network [OSTI]

    that the tidal flow accelerates over Glacier Bay's shallow entrance sill to speeds of 180 cm/s and then slowsA Transect of Glacier Bay Ocean Currents Measured by Acoustic Doppler Current Profiler (ADCP shipboard acoustic Doppler current profiler (ADCP) transects of ocean current in Glacier Bay and Muir Inlet

  4. REPRODUCTIVE CYCLE OF THE SOFT-SHELL CLAM, MYA ARENARIA, AT SKAGIT BAY, WASHINGTON

    E-Print Network [OSTI]

    'll Skagit Bay in northern Puget Sound. Wash. Spawning occurred from late May to early September in both 1971 the annual reproductive cycle for a soft-shell clam population from Puget Sound, Wash. Skagit Bay-shell clams in Puget Sound. DESCRIPTION OF AREA Skagit Bay, Wash., is located in northern Puget Sound 60 miles

  5. Exploring the Environmental Effects of Shale Gas Development in the Chesapeake Bay Watershed

    E-Print Network [OSTI]

    Exploring the Environmental Effects of Shale Gas Development in the Chesapeake Bay Watershed STAC Committee). 2013. Exploring the environmental effects of shale gas development in the Chesapeake Bay of shale gas development in the Chesapeake Bay Watershed. The purpose of this workshop was to engage

  6. A Baseline Assessment of the Ecological Resources of Jobos Bay, Puerto Rico

    E-Print Network [OSTI]

    A Baseline Assessment of the Ecological Resources of Jobos Bay, Puerto Rico July 2011 Editors David. A Baseline Assessment of the Ecological Resources of Jobos Bay, Puerto Rico. NOAA Technical Memorandum NOS of the Ecological Resources of Jobos Bay, Puerto Rico Prepared by the Coastal and Oceanographic Assessment, Status

  7. Renewable Energy Generation Zone Property Tax Abatement

    Broader source: Energy.gov [DOE]

    Local areas in Mimssouri can be designated as Renewable Energy Generation Zones and receive property tax abatements as part of the Enhanced Enterprise Zone program. Legislation (H.B. 737) enacted...

  8. Enterprise Zone Sales Tax Exemption (Kansas)

    Broader source: Energy.gov [DOE]

    The Enterprise Zone Sales Tax Exemption offers businesses located in such economic development zones a 100 percent sales tax exemption on the purchase of labor and materials to construct or remodel...

  9. Statewide Empire Zone Program (New York)

    Broader source: Energy.gov [DOE]

    Business that do not meet the requirements for standard financing, but are in need of capital, may qualify for NYBDC’s Statewide Empire Zone Program. The Statewide Zone Capital Corporation (SZCC),...

  10. Local Option- Rural Renewable Energy Development Zones

    Broader source: Energy.gov [DOE]

    Cities, counties, or several contiguous counties in Oregon can set up Rural Renewable Energy Development Zones. The zone can only cover territory outside of the urban growth boundary of any large...

  11. Keystone Innovation Zone Tax Credit Program (Pennsylvania)

    Broader source: Energy.gov [DOE]

    The Keystone Innovation Zone Tax Credit Program provides tax credits to companies less than eight years old who operate within designated innovation zones. A total pool of $25 million in tax...

  12. Virginia Enterprise Zone Job Creation Grant (Virginia)

    Broader source: Energy.gov [DOE]

    The Virginia Enterprise Zone Job Creation Grant provides cash grants to businesses located in Enterprise zones that create permanent new jobs over a four-job threshold. State incentives are...

  13. Santa Clara County- Zoning Ordinance (California)

    Broader source: Energy.gov [DOE]

    Santa Clara County's Zoning Ordinance includes standards for wind and solar structures for residential, agricultural, and commercial uses.

  14. 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.

  15. Combustion Air Zone (CAZ) Best Practices | Department of Energy

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

    Combustion Air Zone (CAZ) Best Practices Combustion Air Zone (CAZ) Best Practices Combustion Air Zone (CAZ) Best Practices Webinar. Presentation More Documents & Publications...

  16. Stuck-at-fault test set compaction

    E-Print Network [OSTI]

    Vanfickell, Jason Michael

    2013-02-22T23:59:59.000Z

    of sltcp g(0. 5-ones~robo~, ~) Exc Bal, = 0. 25 ? of sites Figure 1. Formula for computation of the excitation balance Excitation balance is a metric computed for every detectable fault in the entire circuit. It is intended to provide a measure... Sigma ~ National Society of Collegiate Scholars Activities: ~ Texas A&M University Institute of Electrical and Electronic Engineers IT/Technology Chair and Webmaster, Fall 2003 ? Spring 2004 ~ Texas A&M University Student Engineers' Council...

  17. Global transition zone tomography Jeroen Ritsema1

    E-Print Network [OSTI]

    Ritsema, Jeroen

    Global transition zone tomography Jeroen Ritsema1 and Hendrik Jan van Heijst Seismological on accurate models of seismic velocity variation in the upper mantle transition zone (400­1000 km depth. Such data provide new global transition zone constraints. We combined more than a million measurements

  18. Eastern Energy Zones Mapping Tool

    Broader source: Energy.gov [DOE]

    The Eastern Interconnection States’ Planning Council (EISPC) has released the Energy Zones (EZ) Mapping Tool, a free, web-based interactive tool that will help states and other stakeholders in the Eastern Interconnection identify geographic areas suitable for the development of clean energy resources (natural gas, sequestration or utilitization locations for C02 from coal, nuclear, and renewable) which can potentially provide significant amounts of new electric power generation.

  19. 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.

  20. Abundance and distribution of the western Gulf stone crab (Menippe adina) in Galveston Bay, Texas

    E-Print Network [OSTI]

    Boslet, Jane Murray

    1989-01-01T23:59:59.000Z

    studies h d t d ~ Md t h h ' d t' t from M. mercenaria (Bert 1986, Williams and Felder 1986) Due to this new systematic status, historical data based on M. mercenaria, most of which come from Florida, may not be applicable to characterize the natural..., and Melager Coves, Mid West Bay, Jones Bay, West Bay east of Anderson Ways, and south of the I ? 45 Causeway. Non-reef/channel sampling sites in West Bay included randomly selected areas representative of the remainder of the bay. Harsh/mudflat areas...

  1. Short-term variability of suspended sediment and phytoplankton in Tampa Bay, Florida: Observations from a coastal oceanographic tower

    E-Print Network [OSTI]

    Meyers, Steven D.

    dynamics in Tampa Bay with data collected between 8 December 2004 and 17 January 2005 from optical of reliable and cost-effective means for high-frequency sampling (e.g., Roegner et al., 2002). As a result, with a dredged channel (>10 m) extending from the mouth of the bay to the upper bay. Tampa Bay is often divided

  2. Sensitivity analysis of three-dimensional salinity simulations in North San Francisco Bay using the unstructured-grid SUNTANS model

    E-Print Network [OSTI]

    Fringer, Oliver B.

    and the confluence of the Sacramento­San Joaquin Rivers and comprises San Pablo Bay, Suisun Bay and Central Bay and San Joaquin rivers, while high inflows result in enhanced salinity stratification and gravitationalSensitivity analysis of three-dimensional salinity simulations in North San Francisco Bay using

  3. 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.

  4. Fibre bundle framework for unitary quantum fault tolerance

    E-Print Network [OSTI]

    Daniel Gottesman; Lucy Liuxuan Zhang

    2013-09-26T23:59:59.000Z

    We introduce a differential geometric framework for describing families of quantum error-correcting codes and for understanding quantum fault tolerance. This work unifies the notion of topological fault tolerance with fault tolerance in other kinds of quantum error-correcting codes. In particular, we use fibre bundles with a natural flat projective connection to study the transformation of codewords under unitary fault-tolerant evolutions. We show that the fault-tolerant logical operations are given by the monodromy group for either of two bundles, both of which have flat projective connections. As concrete realizations of the general framework, we construct the bundles explicitly for two examples of fault-tolerant families of operations, the qudit transversal gates and the string operators in the toric code.

  5. 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...

  6. Investigation of the Meers fault in southwestern Oklahoma

    SciTech Connect (OSTI)

    Luza, K.V.; Madole, R.F.; Crone, A.J.

    1987-08-01T23:59:59.000Z

    The Meers fault is part of a major system of NW-trending faults that form the boundary between the Wichita Mountains and the Anadarko basin in southwestern Oklahoma. A portion of the Meers fault is exposed at the surface in northern Comanche County and strikes approximately N. 60/sup 0/ W. where it offsets Permian conglomerate and shale for at least 26 km. The scarp on the fault is consistently down to the south, with a maximum relief of 5 m near the center of the fault trace. Quaternary stratigraphic relationships and 10 /sup 14/C age dates constrain the age of the last movement of the Meers fault. The last movement postdates the Browns Creek Alluvium, late Pleistocene to early Holocene, and predates the East Cache Alluvium, 100 to 800 yr B.P. Fan alluvium, produced by the last fault movement, buried a soil that dates between 1400 and 1100 yr B.P. Two trenches excavated across the scarp near Canyon Creek document the near-surface deformation and provide some general information on recurrence. Trench 1 was excavated in the lower Holocene part of the Browns Creek Alluvium, and trench 2 was excavated in unnamed gravels thought to be upper Pleistocene. Flexing and warping was the dominant mode of deformation that produced the scarp. The stratigraphy in both trenches indicates one surface-faulting event, which implies a lengthy recurrence interval for surface faulting on this part of the fault. Organic-rich material from two samples that postdate the last fault movement yielded /sup 14/C ages between 1600 and 1300 yr B.P. These dates are in excellent agreement with the dates obtained from soils buried by the fault-related fan alluvium.

  7. 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).

  8. Covered Product Category: Industrial Luminaires (High/Low Bay)

    Broader source: Energy.gov [DOE]

    The Federal Energy Management Program (FEMP) provides acquisition guidance and Federal efficiency requirements for Industrial Luminaires (High/Low Bay). Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

  9. Bayes Estimation for the Marshall-Olkin Bivariate Weibull Distribution

    E-Print Network [OSTI]

    Kundu, Debasis

    Bayes Estimation for the Marshall-Olkin Bivariate Weibull Distribution Debasis Kundu1 & Arjun K. Gupta2 Abstract In this paper, we consider the Bayesian analysis of the Marshall-Olkin bivariate Weibull. This is a generalization of the Marshall-Olkin bivariate exponential dis- tribution. It is well known that the maximum

  10. UMCESUNIVERSITY OF MARYLAND CENTER for ENVIRONMENTAL SCIENCE CHESAPEAKE BAY

    E-Print Network [OSTI]

    Boynton, Walter R.

    : Utility of ConMon Data for Assessing Shallow Water Habitats 2-1 Community Metabolism: Use of ConMon Data on ConMon data collected along a eutrophication gradient from the Maryland Coastal Bays (A) Bishopville versus daily DO range (max DO ­ min DO) based on ConMon data collected along a eutrophication gradient

  11. EA-1995: Trestle Bay Ecosystem Restoration Project, Clatsop County, Oregon

    Broader source: Energy.gov [DOE]

    The U.S. Army Corps of Engineers is preparing, with DOE’s Bonneville Power Administration (BPA) as a cooperating agency, an EA that evaluates the potential environmental impacts of a proposal to improve estuary habitat in Trestle Bay. BPA’s proposed action is to partially fund the proposal.

  12. Manganese Oxidation In A Natural Marine Environment- San Antonio Bay

    E-Print Network [OSTI]

    Neyin, Rosemary Ogheneochuko

    2013-04-12T23:59:59.000Z

    ................................................................................................................. 24 REFERENCES .................................................................................................................. 25 vii LIST OF FIGURES Page Figure 1 Study Area in ANWR, San Antonio Bay, Texas... by microorganisms, colloidal matter, mineral surfaces, or all three; and (3) is superoxide a significant proximal oxidant? 4 STUDY AREA The area chosen for this study was located in the Aransas National Wildlife Refuge (ANWR) in San Antonio...

  13. AT GUANTANAMO BAY: A HYBRID WIND-DIESEL SYSTEM

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND POWER AT GUANTANAMO BAY: A HYBRID WIND-DIESEL SYSTEM FOR THE US NAVY AT GUANTANAMO NAVAL BASE Laboratory and are actively developing what will be the world's largest wind-diesel hybrid electric plant. The pending installation of four 950-kW wind turbines to supplement the 22.8 MW diesel electricity plant

  14. Preliminary Investigation of Tracer Gas Reaeration Method for Shallow Bays

    E-Print Network [OSTI]

    Baker, Sarah H.; Holley, Edward R.

    apparently the first tests to be performed using the tracer gas technique in bays. As a result, the emphasis was on the development of techniques rather than on obtaining data. It appears that workable techniques have been developed, but they now need...

  15. Teaching Bayes' Rule: A Data Oriented Jim Albert 1

    E-Print Network [OSTI]

    Albert, James H.

    Teaching Bayes' Rule: A Data Oriented Approach Jim Albert 1 Bowling Green State University March 1997 1 Address for correspondence: Department of Mathematics and Statistics, Bowling Green State University, Bowling Green, OH 43403, USA. #12; Abstract There is a current emphasis on making

  16. Nitrogen Dynamics in Sandy Freshwater Sediments (Saginaw Bay, Lake Huron)

    E-Print Network [OSTI]

    of added 15NH4 + from lake water passing over dark sediment cores. Sediment-water fluxes of nitrogen at the sediment- water interface is derived from ammonium pro- duced from organic matter mineralization in surface ABSTRACT. Sediment-water nitrogen fluxes and transformations were examined at two sites in Sagi- naw Bay

  17. A Radiocarbon Chronology of Hunter-Gatherer Occupation from Bodega Bay, California, USA

    SciTech Connect (OSTI)

    Kennedy, M A; Russell, A D; Guilderson, T P

    2005-04-27T23:59:59.000Z

    The evolution of hunter-gatherer maritime adaptations in western North America has been a prominent topic of discussion among archaeologists in recent years (e.g. Arnold 1992; Erlandson and Colten 1991; Erlandson and Glassow 1997; Lightfoot 1993). Although vast coastal regions of the northeastern Pacific (for example, southern California) have been investigated in detail, our understanding of hunter-gatherer developments along the coast of northern California is limited. Previous research indicates that humans have exploited marine mammals, fish and shellfish along the northern California shoreline since the early Holocene (Schwaderer 1992). By the end of the late Holocene, some groups remained year-round on the coast subsisting primarily on marine resources (e.g. Gould 1975; Hildebrandt and Levulett 2002). However, a paucity of well-dated cultural deposits has hindered our understanding of these developments, particularly during the early and middle Holocene. The lack of a long and reliable chronological sequence has restricted our interpretations of behavioral change, including the adaptive strategies (such as foraging, mobility and settlement) used by human foragers to colonize and inhabit the coastal areas of this region. These shortcomings have also hindered comparative interpretations with other coastal and inland regions in western North America. Here we present a Holocene radiocarbon chronology of hunter-gatherer occupation based on contemporaneous samples of charcoal and Mytilus californianus (California sea mussel) shell recovered from seven archaeological sites near Bodega Bay, California. A series of 127 {sup 14}C ages reveal a chronological sequence that spans from ca. 8940-110 cal BP (1{sigma}) (7890-160 {sup 14}C yr BP = charcoal; 8934-101 {sup 14}C yr BP = shell). As part of this sequence, we report new {sup 14}C dates from the stratified cave and open-air midden deposits at Duncan's Landing (CA-SON-348/H). In addition, we present {sup 14}C ages from three middle Holocene sites located in the Bodega Dunes, and from three late Holocene sites, including Kili (CASON-299), the oldest known village site in the region. Bodega Bay (38 degrees 19 minutes N, 123 degrees 03 minutes W) is situated about 90 km north of San Francisco Bay, California (Figure 1). The Pacific, in conjunction with prominent geomorphological features, has given rise to a series of coastal habitats (e.g. semi-protected and protected shorelines) around Bodega Bay that are rather unique for the unprotected, surf swept rocky shores of northern California. This stretch of coastline also lies within a zone of particularly strong seasonal upwelling between Point Reyes Peninsula and Cape Mendocino; a region characterized by high Ekman transport (Huyer 1983), and high coastal concentrations of the nutrients silica and phosphate (van Geen and Husby 1996). The interaction between land and sea results in a productive marine ecosystem that has attracted hunter-gatherers for much of the Holocene.

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

    Open Energy Info (EERE)

    faulting in an obliquely extending orogen, structural control on permeability and production in the Coso Geothermal Field, eastern California Jump to: navigation, search OpenEI...

  19. 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...

  20. 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 ...

  1. atera fault central: Topics by E-print Network

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

    deformation and creep along the central section of the North Anatolian Fault (Turkey): InSAR observations Geosciences Websites Summary: Interseismic deformation and creep...

  2. Checksum-Based Fault Tolerance for LU Factorization

    E-Print Network [OSTI]

    Davies, Teresa

    2014-01-01T23:59:59.000Z

    study of failures in high-performance computing systems. InFault tolerant high performance computing by a codingfor large-scale high- performance computing. In 2012

  3. PV Arc Fault Detector Challenges Due to Module Frequency Response...

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

    This poster does not contain any proprietary or confidential information. Introduction PV system arc faults have led to a number of rooftop fires which have caused significant...

  4. Dating of major normal fault systems using thermochronology-...

    Open Energy Info (EERE)

    faults, timing of ductile mylonite formation and passage of rocks through the crystal-plastic to brittle transition, and multiple events of extensional unroofing. Here we...

  5. MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION...

    Open Energy Info (EERE)

    GETHERMAL FIELD, CALIFORNIA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC...

  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. Fault tolerant Quantum Information Processing with Holographic control

    E-Print Network [OSTI]

    G. A. Paz-Silva; G. K. Brennen; J. Twamley

    2010-08-10T23:59:59.000Z

    We present a fault-tolerant semi-global control strategy for universal quantum computers. We show that N-dimensional array of qubits where only (N-1)-dimensional addressing resolution is available is compatible with fault-tolerant universal quantum computation. What is more, we show that measurements and individual control of qubits are required only at the boundaries of the fault-tolerant computer, i.e. holographic fault-tolerant quantum computation. Our model alleviates the heavy physical conditions on current qubit candidates imposed by addressability requirements and represents an option to improve their scalability.

  8. Fault Tolerant Evaluation of Continuous Selection Queries over Sensor Data

    E-Print Network [OSTI]

    Lazaridis, Iosif; Han, Qi; Mehrotra, Sharad; Venkatasubramanian, Nalini

    2009-01-01T23:59:59.000Z

    Evaluation of Continuous Selection Queries over Sensor Dataevaluation of continuous selection queries (CSQs) over sensor-sensor suffices and there is no Fault Tolerant Evaluation of

  9. Aksaray And Ecemis Faults - Diapiric Salt Relationships- Relevance...

    Open Energy Info (EERE)

    Aksaray And Ecemis Faults - Diapiric Salt Relationships- Relevance To The Hydrocarbon Exploration In The Tuz Golu (Salt Lake) Basin, Central Anatolia, Turkey Jump to: navigation,...

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

    E-Print Network [OSTI]

    Dygert, Todd Charles

    1992-01-01T23:59:59.000Z

    structure map for the Devonian horizon 20 7. Seismic time slice taken at 1010 ms 8. Seismic line 190 9. Seismic line 108 10. Seismic line 40 22 25 27 11. Cross-sectional view of a wrench fault 31 12. Pure shear fault model for strike- slip.... The Clearfork horizon was mapped first since it was shallow, strong and continuous. The faults and Devonian horizon were interpreted simultaneously, Adjacent lines were interpreted together throughout the survey to insure consistent fault and horizon picks...

  11. Fault simulation of combinational circuits based on critical path tracing

    E-Print Network [OSTI]

    Burnett, Charles James

    1992-01-01T23:59:59.000Z

    advantage of the computer's internal architecture and does not intelligently analyze the CUT. The deductive simulator traverses the good circuit to determine the value of each line. At the same time, every fault that causes a line to have a different... of the faults on a line within the circuit is detected for a given test vector, the line is marked as critical [10]. These faults that are detected are marked as covered. This very quickly gathers faults without direct simulation to the outputs, however...

  12. Effects of Volcanism, Crustal Thickness, and Large Scale Faulting...

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

    of Volcanism, Crustal Thickness, and Large Scale Faulting on the Development and Evolution of Geothermal Systems: Collaborative Project in Chile Effects of Volcanism, Crustal...

  13. 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...

  14. automatic fault tree: 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...

  15. automatical adaptive fault: 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...

  16. Recent earthquake sequences at Coso: Evidence for conjugate faulting...

    Open Energy Info (EERE)

    of faulting along conjugate planes. We present results from analyzing an earthquake sequence occurring in 1998 and compare it with a similar sequence that occurred in 1996. The...

  17. Recurrent faulting and petroleum accumulation, Cat Creek Anticline, central Montana

    SciTech Connect (OSTI)

    Nelson, W.J. (Illinois State Geological Survey, Champaign (United States))

    1991-06-01T23:59:59.000Z

    The Cat Creek anticline, scene of central Montana's first significant oil discovery, is underlain by a south-dipping high-angle fault (Cat Creek fault) that has undergone several episodes of movement with opposite sense of displacement. Borehole data suggest that the Cat Creek fault originated as a normal fault during Proterozoic rifting concurrent with deposition of the Belt Supergroup. Reverse faulting took place in Late Cambrian time, and again near the end of the Devonian Period. The Devonian episode, coeval with the Antler orogeny, raised the southern block several hundred feet. The southern block remained high through Meramecian time, then began to subside. Post-Atokan, pre-Middle Jurassic normal faulting lowered the southern block as much as 1,500 ft. During the Laramide orogeny (latest Cretaceous-Eocene) the Cat Creek fault underwent as much as 4,000 ft of reverse displacement and a comparable amount of left-lateral displacement. The Cat Creek anticline is a fault-propagation fold; en echelon domes and listric normal faults developed along its crest in response to wrenching. Oil was generated mainly in organic-rich shales of the Heath Formation (upper Chesterian Series) and migrated upward along tectonic fractures into Pennsylvanian, Jurassic, and Cretaceous reservoir rocks in structural traps in en echelon domes. Production has been achieved only from those domes where structural closure was retained from Jurassic through Holocene time.

  18. The Carolina Bay Restoration Project - Final Report 2000-2006.

    SciTech Connect (OSTI)

    Barton, Christopher

    2007-12-15T23:59:59.000Z

    A Wetlands Mitigation Bank was established at SRS in 1997 as a compensatory alternative for unavoidable wetland losses. Prior to restoration activities, 16 sites included in the project were surveyed for the SRS Site Use system to serve as a protective covenant. Pre-restoration monitoring ended in Fall 2000, and post restoration monitoring began in the Winter/Spring of 2001. The total interior harvest in the 16 bays after harvesting the trees was 19.6 ha. The margins in the opencanopy, pine savanna margin treatments were thinned. Margins containing areas with immature forested stands (bay 5184 and portions of bay 5011) were thinned using a mechanical shredder in November 2001. Over 126 hectares were included in the study areas (interior + margin). Planting of two tree species and the transplanting of wetland grass species was successful. From field surveys, it was estimated that approximately 2700 Nyssa sylvatica and 1900 Taxodium distichum seedlings were planted in the eight forested bays resulting in an average planting density of ? 490 stems ha-1. One hundred seedlings of each species per bay (where available) were marked to evaluate survivability and growth. Wetland grass species were transplanted from donor sites on SRS to plots that ranged in size from 100 – 300 m2, depending on wetland size. On 0.75 and 0.6 meter centers, respectively, 2198 plugs of Panicum hemitomon and 3021 plugs Leersia hexandra were transplanted. New shoots originating from the stumps were treated with a foliar herbicide (Garlon® 4) during the summer of 2001 using backpack sprayers. Preliminary information from 2000-2004 regarding the hydrologic, vegetation and faunal response to restoration is presented in this status report.

  19. Regional seismic reflection line, southern Illinois Basin, provides new data on Cambrian rift geometry, Hicks Dome genesis, and the Fluorspar Area Fault Complex

    SciTech Connect (OSTI)

    Potter, C.J.; Goldhaber, M.B.; Taylor, C.D. (U.S. Geological Survey, Denver, CO (United States)); Heigold, P.C. (Illinois State Geological Survey, Champaign, IL (United States))

    1992-01-01T23:59:59.000Z

    Detailed studies of the subsurface structure of the Cambrian Reelfoot rift (RFR) in the Midwestern US provide important insights into continental rifting processes and into the structural fabric of a zone of modern intracratonic seismicity (New Madrid zone). High-quality oil industry seismic reflection data show that in the area of transition between the RFR and the Rough Creek Graben (RCG) the geometry of the Cambrian rift system is that of a half-graben that thickens to the southeast. This contrasts with the northward-thickening half-graben observed to the east in the RCG and with the more symmetric graben to the south in the RFR. An 82.8-km segment of a northwest-southeast seismic reflection profile in southeastern Illinois and western Kentucky shows that near Hicks Dome, Illinois, Middle and Lower Cambrian syn-rift sedimentary rocks occupy about 0.35 s (two-way travel time) on the seismic reflection section (corresponding to a thickness of about 970 m). This stratigraphic interval occupies about 0.45 s (1,250 m) near the Ohio river and is thickest against the Tabb Fault System (TFS) in Kentucky, where it occupies 0.7 s (1,940 m). The seismic data show that in this part of the Cambrian rift the master fault was part of the TFS and that normal displacement on the TFS continued through middle Paleozoic time. The seismic data also provide new information on the late Paleozoic development of Hicks-Dome and the surrounding Fluorspar Area Fault Complex (FAFC) in southeastern Illinois and western Kentucky. A series of grabens and horsts in the FAFC document a late Paleozoic reactivation of the RFR. Comparison of the reflection data with surface mineralization patterns shows that in most cases mineralized graben-bounding faults clearly cut basement or are splays from faults that cut basement.

  20. Direct dating of Eocene reverse faulting in northeastern Tibet using Ar-dating of fault clays and low-temperature thermochronometry

    E-Print Network [OSTI]

    Direct dating of Eocene reverse faulting in northeastern Tibet using Ar-dating of fault clays fault of northeastern Tibet by dating several size fractions of fault gouge clay that represent variable Ma and continued until at least Middle Miocene time and that authigenic clay growth occurred

  1. Evaluation of faulting characteristics and ground acceleration associated with recent movement along the Meers Fault, Southwestern Oklahoma 

    E-Print Network [OSTI]

    Burrell, Richard Dennis

    1997-01-01T23:59:59.000Z

    Exposures. 14 Diagram illustrating the effects of the Meers Fault scarp on stream channel pathways. 16 Tors on the western side of Elk Mountain, 17 Tors in Wichita Mountains known as Twin Rocks . . . 10 Tor Analysis Log utilized during fteld... and the adjacent petroleum rich Anadarko Basin. Moody and Hill (1956) identified the presence of a scarp along a section of the Meers Fault which deforms Quaternary deposits during a study of wrench fault tectonics. However, it was not until further observations...

  2. Treanmission Line Fault Location using Interoperability and Integration of Data and Model 

    E-Print Network [OSTI]

    Dutta, Papiya

    2014-01-10T23:59:59.000Z

    , classify and locate transmission line faults using synchronous samples of voltages and currents captured during fault transients from both ends of the transmission line of interest. The method is tested for several faults simulated on IEEE 118 bus test...

  3. Fault tolerant control of homopolar magnetic bearings and circular sensor arrays 

    E-Print Network [OSTI]

    Li, Ming-Hsiu

    2006-04-12T23:59:59.000Z

    Fault tolerant control can accommodate the component faults in a control system such as sensors, actuators, plants, etc. This dissertation presents two fault tolerant control schemes to accommodate the failures of power ...

  4. A Comparison of Fault Detection Methods For a Transcritical Refrigeration System

    E-Print Network [OSTI]

    Janecke, Alex Karl

    2012-10-19T23:59:59.000Z

    pairings of four faults: over/undercharge, evaporator fouling, gas cooler fouling, and compressor valve leakage. This technique allows for low cost measurement and independent detection of individual faults even when multiple faults are present. Results...

  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 N12°E for about 160

  6. Data-Based Monitoring and Fault-Tolerant Control of Nonlinear Processes

    E-Print Network [OSTI]

    Chilin, David

    2012-01-01T23:59:59.000Z

    with a fault in the heat input/removal actuator to vessel 2with a fault in the heat input/removal actuator to vessel 2with a fault in the heat input/removal actuator to vessel 2

  7. DRAFT RICHMOND BAY CAMPUS LRDP | August 2013 The Richmond Bay Campus is a partnership between the University of Cali-

    E-Print Network [OSTI]

    Lee, Jason R.

    National Laboratory to create a state-of-the-art, inspirational, and sustainable place to produce world, the environment, health, and the global economy. In the near term, research at the Richmond Bay Campus will focus on cleaner methods to produce biofuels; an advanced understanding of the genomics of plants, microbes

  8. DRAFT RICHMOND BAY CAMPUS LRDP | November 2013 The Richmond Bay Campus is a partnership between the University of Cali-

    E-Print Network [OSTI]

    Lee, Jason R.

    is focused on the devel- opment of solutions for 21st century challenges in the areas of energy for innova- tion in the City of Richmond South Shoreline Area, serving as a catalyst for the development -- are directly supportive of the City's goals for the South Shoreline Area. The Richmond Bay Campus will serve

  9. Comparison of geology of Jurassic Norphlet Mary Ann field, Mobile Bay, Alabama, to onshore regional Norphlet trends

    SciTech Connect (OSTI)

    Marzono, M.; Pense, G.; Andronaco, P.

    1988-09-01T23:59:59.000Z

    The geology of the Mary Ann field is better understood in light of regional studies, which help to establish a depositional model in terms of both facies and thickness variations. These studies also illustrate major differences between onshore and offshore Norphlet deposits concerning topics such as diagenesis, hydrocarbon trapping, and migration. The Jurassic Norphlet sandstone was deposited in an arid basin extending from east Texas to Florida by a fluvial-eolian depositional system, prior to the transgression of the Smackover Formation. Until discovery of the Mary Ann field in 1979, Norphlet production was restricted to onshore areas, mostly along the Pickens-Pollard fault system in Mississippi, Alabama, and Florida. The Mary Ann field is a Norphlet dry-gas accumulation, and was the first offshore field in the Gulf of Mexico to establish economic reserves in the Jurassic. The field is located in Mobile Bay, approximately 25 mi (40 km) south of Mobile, Alabama. Formed by a deep-seated (more than 20,000 ft or 6096 m) faulted salt pillow, Mary Ann field produces from a series of stacked eolian dune sands situated near the Norphlet paleocoastline. Five lithofacies have been recognized in cores from the Mobil 76 No. 2 well. Each lithofacies has a distinct reservoir quality. Optimum reservoir faces are the dune and sheet sands. Nonreservoir facies are interdune (wet and dry), marine reworked, and evaporitic sands. Following deposition, these sediments have undergone varying amounts of diagenesis. Early cementation of well-sorted sands supported the pore system during compaction. However, late cementation by chlorite, silica, and alteration of liquid hydrocarbons to an asphaltic residue have completely occluded the pore system in parts of the reservoir.

  10. Accommodation Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00About OpenEIAccionaAccommodation Zone Jump

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

    E-Print Network [OSTI]

    Brest, Université de

    power industries, interests in diagnostics and fault-tolerant control of nuclear power plants have been industrial systems. To achieve these goals, monitoring and supervision are embedded in the electrical energy, FTC has been implemented in sensible applications such as aerospace, nuclear power, automotive

  12. 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

  13. A core-based assessment of the spatial relationship of small faults associated with a basement-controlled, large normal fault in the Hickory Sandstone

    E-Print Network [OSTI]

    Graff, Mitchell C

    2006-10-30T23:59:59.000Z

    Measures of Small Faults??????????????? Page iii v vi viii xiv 1 3 3 5 7 10 10 10 12 14 18 20 26 28 vii 4. ESTIMATING SMALL FAULT DISPLACEMENT USING FAULT GOUGE THICKNESS AND PROTOLITH TEXTURE??????????... 4.1 Previous Work... is proportional to mean?????????????????????. 26 Combined scatterplot of faults with known gouge thickness versus known displacement and faults with known gouge thickness versus estimated displacement????????????????????. Page 37 38 39 40 43 45 47 48...

  14. Tidal Marsh Vegetation of China Camp, San Pablo Bay, California

    E-Print Network [OSTI]

    Baye, Peter R.

    2012-01-01T23:59:59.000Z

    to be spreading into the mudflat. Smaller wave- cut scarpsCamp Marsh’s fringing marsh/mudflat zone, as well as its

  15. 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.

  16. 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...

  17. SODAR DATA FROM OYSTER BAY AT WINYAH BAY NATIONAL ESTUARINE RESEARCH RESERVE

    SciTech Connect (OSTI)

    Nichols, R.; Kohn, J.; Rigas, N.; Boessneck, E.; Kress, E.; Gayes, P.

    2013-04-29T23:59:59.000Z

    The SecondWind Triton® is a SODAR (SOnic Detection And Ranging) sonic wind profiler (Triton® sodar) system capable of profiling the wind characteristics up to 200m above the instrument. SODAR systems transmit acoustic chirps into the atmosphere and measure the backscattered signal returned to the device. The primary source of acoustic scattering is variations in air temperature, which cause changes in the refractive index of sound. By measuring the Doppler?shifted frequency of these returned signals, the Triton® can calculate the wind’s speed and direction for the volume of air above the instrument, measured at ten fixed heights, known as station heights. The Triton® is specifically designed for the purpose of wind energy resource assessment as it can remotely capture wind data at heights above ground where wind turbine rotors operate. The measurements made include horizontal wind speed and direction, vertical wind speed, and turbulence. Other integrated sensors provide time and location via GPS, barometric pressure, humidity, and the tilt of the instrument. The study area is located east of Georgetown, South Carolina in North Inlet ? Winyah Bay National Estuarine Research Reserve. The monitoring period for data in this report begins 5/14/2009 9:30:00 AM EST and ends 8/2/2010 11:40:00 AM EST.

  18. 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.

  19. An Information Flow Model of Fault Detection Margaret C. Thompson ?

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    not be practical. Nonethe­ less, Relay provides insight into testing and fault de­ tection and suggests an approach and Computer Science Amherst, MA 01003 University of California Irvine, CA 92717 Abstract Relay is a model of how a fault causes a failure on execution of some test datum. This process begins with introduction

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université 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

  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. 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

  3. 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.

  4. Stator current demodulation for induction machine rotor faults diagnosis

    E-Print Network [OSTI]

    Boyer, Edmond

    with emphasis on stator current processing [1], [2]. It has been proven that mechanical and electrical faultsStator current demodulation for induction machine rotor faults diagnosis El Houssin El Bouchikhi of the stator currents. Hence, demodulation of the stator currents is of high interest for induction machines

  5. 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

  6. 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

  7. 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

  8. Triassic/Jurassic faulting patterns of Conecuh Ridge, southwest Alabama

    SciTech Connect (OSTI)

    Hutley, J.K.

    1985-02-01T23:59:59.000Z

    Two major fault systems influenced Jurassic structure and deposition on the Conecuh Ridge, southwest Alabama. Identification and dating of these fault systems are based on seismic-stratigraphic interpretation of a 7-township grid in Monroe and Conecuh Counties. Relative time of faulting is determined by fault geometry and by formation isopachs and isochrons. Smackover and Norphlet Formations, both Late Jurassic in age, are mappable seismic reflectors and are thus reliable for seismicstratigraphic dating. The earlier of the 2 fault systems is a series of horsts and grabens that trends northeast-southwest and is Late Triassic to Early Jurassic in age. The system formed in response to tensional stress associated with the opening of the Atlantic Ocean. The resulting topography was a series of northeast-southwest-trending ridges. Upper Triassic Eagle Mills and Jurassic Werner Formations were deposited in the grabens. The later fault system is also a series of horsts and grabens trending perpendicular to the first. This system was caused by tensional stress related to a pulse in the opening of the Gulf of Mexico. Faulting began in Early Jurassic and continued into Late Jurassic, becoming progressively younger basinward. At the basin margin, faulting produced a very irregular shoreline. Submerged horst blocks became centers for shoaling or carbonate buildups. Today, these blocks are exploration targets in southwest Alabama.

  9. 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

  10. Refraction of shear zones in granular materials

    E-Print Network [OSTI]

    Tamas Unger

    2007-01-08T23:59:59.000Z

    We study strain localization in slow shear flow focusing on layered granular materials. A heretofore unknown effect is presented here. We show that shear zones are refracted at material interfaces in analogy with refraction of light beams in optics. This phenomenon can be obtained as a consequence of a recent variational model of shear zones. The predictions of the model are tested and confirmed by 3D discrete element simulations. We found that shear zones follow Snell's law of light refraction.

  11. 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.

  12. Late Holocene Stratigraphy, Humboldt Bay, California: Evidence for Late Holocene Paleoseismicity of the Southern Cascadia Subduction Zone

    E-Print Network [OSTI]

    Valentine, David Wade

    1992-01-01T23:59:59.000Z

    the upwards growth of mudflat-salt marsh for variousrhizomes indicates that the mudflat is nearing or is abovean indicator that the mudflat has not reached MHW. Eustatic

  13. Sandia National Laboratories: Marginal Ice Zone Observations...

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

    Marginal Ice Zone Observations and Processes Experiment mission Sierra Unmanned Aerial Vehicle to Begin Flights Over Arctic Sea Ice On July 25, 2013, in Climate, Customers &...

  14. Enterprise Zone Retraining Credit Program (South Carolina)

    Broader source: Energy.gov [DOE]

    The Enterprise Zone Retraining Credit Program is a discretionary incentive that helps existing industries maintain their competitive edge and retain their existing workforce by allowing them to...

  15. Maricopa County- Renewable Energy Systems Zoning Ordinance

    Broader source: Energy.gov [DOE]

    The Maricopa County Zoning Ordinance contains provisions for siting renewable energy systems. The ordinance defines renewable energy as "energy derived primarily from sources other than fossil...

  16. The Ohio Enterprise Zone program (Ohio)

    Broader source: Energy.gov [DOE]

    The Ohio Enterprise Zone program is an economic development tool administered by municipal and county governments that provides real and personal property tax exemptions to businesses making...

  17. 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

    , the Aksay double-bend in the Altyn Tagh fault, and its ability to stop the dynamic rupture. A detailed parameter-space study has been performed in the simplified model. From the single fault test, I find that the Positive Coulomb Stress (PCS) region...

  18. 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

  19. Norphlet reservoir in Mobile Bay: Origins of deep porosity

    SciTech Connect (OSTI)

    Lock, B.E.; Broussard, S.W. (Univ. of Southwestern Louisiana, Lafayette (USA))

    1989-09-01T23:59:59.000Z

    The authors have applied thin section and SEM petrographic techniques in an attempt to understand better the erratic distribution of highly porous, reservoir quality sands (reservoir zone), and overlying tight, thoroughly cemented sands (tight zone) that together constitute the Norphlet Formation of Mary Ann field. Their conclusions are summarized.

  20. Ambient dissolved oxygen concentrations in Delaware's Inland Bays. Final report, June 6, 1984

    SciTech Connect (OSTI)

    Biggs, R.B.

    1984-01-01T23:59:59.000Z

    Ambient dissolved oxygen concentrations were measured at dawn during August, 1983, in Rehoboth and Indian River Bays. In Indian River Bay, 59% of the D.O. measurements were below the State minimum water quality standard of 5 mg L/sup -1/, while in Rehoboth Bay 17% of the values fail to meet the State standards. Diurnal dissolved oxygen curves measured at 5 stations in the Bays and tributary creeks, provide evidence that, although the Bays are in reasonable balance with respect to apparent net daytime photosynthesis (Pa) and nighttime respiration (Rn), the absolute values of Pa and Rn are very high, compared with other coastal ecosystems, except for central Rehoboth Bay. These conclusions are consistent with the annual nutrient loads to the systems, which are about double for Indian River when contrasted with Rehoboth. 11 references, 1 figure, 7 tables.

  1. Study of Reservoir Heterogencities and Structural Features Affecting Production in the Shallow Oil Zone, Eastern Elk Hills Area, California

    SciTech Connect (OSTI)

    Janice Gillespie

    2004-11-01T23:59:59.000Z

    Late Neogene (Plio-Pleistocene) shallow marine strata of the western Bakersfield Arch and Elk Hills produce hydrocarbons from several different reservoirs. This project focuses on the shallow marine deposits of the Gusher and Calitroleum reservoirs in the Lower Shallow Oil Zone (LSOZ). In the eastern part of the study area on the Bakersfield Arch at North and South Coles Levee field and in two wells in easternmost Elk Hills, the LSOZ reservoirs produce dry (predominantly methane) gas. In structurally higher locations in western Elk Hills, the LSOZ produces oil and associated gas. Gas analyses show that gas from the eastern LSOZ is bacterial and formed in place in the reservoirs, whereas gas associated with oil in the western part of the study area is thermogenic and migrated into the sands from deeper in the basin. Regional mapping shows that the gas-bearing LSOZ sands in the Coles Levee and easternmost Elk Hills area are sourced from the Sierra Nevada to the east whereas the oil-bearing sands in western Elk Hills appear to be sourced from the west. The eastern Elk Hills area occupied the basin depocenter, farthest from either source area. As a result, it collected mainly low-permeability offshore shale deposits. This sand-poor depocenter provides an effective barrier to the updip migration of gases from east to west. The role of small, listric normal faults as migration barriers is more ambiguous. Because our gas analyses show that the gas in the eastern LSOZ reservoirs is bacterial, it likely formed in-place near the reservoirs and did not have to migrate far. Therefore, the gas could have been generated after faulting and accumulated within the fault blocks as localized pools. However, bacterial gas is present in both the eastern AND western parts of Elk Hills in the Dry Gas Zone (DGZ) near the top of the stratigraphic section even though the measured fault displacement is greatest in this zone. Bacterial gas is not present in the west in the deeper LSOZ which has less measured fault displacement. The main difference between the DGZ and the LSOZ appears to be the presence of a sandpoor area in the LSOZ in eastern Elk Hills. The lack of permeable migration pathways in this area would not allow eastern bacterial gas to migrate farther updip into western Elk Hills. A similar sand-poor area does not appear to exist in the DGZ but future research may be necessary to verify this.

  2. Investigation of tidal power, Cobscook Bay, Maine. Environmental Appendix

    SciTech Connect (OSTI)

    Not Available

    1980-08-01T23:59:59.000Z

    This report presents information regarding existing terrestrial and marine resources and water quality conditions in the Cobscook Bay area. A preliminary assessment of impacts from a tidal power project is also presented and data gaps are identified. Reports contained in the appendix were prepared by the U.S. Fish and Wildlife Service, the National Marine Fisheries Service, the University of Maine at Orino, School of Forestry Resources and the U.S. Army Corps of Engineers.

  3. Submarine geomorphology of Eastern Ross Sea and Sulzberger Bay, Antarctica

    E-Print Network [OSTI]

    Lepley, Larry Kent

    1964-01-01T23:59:59.000Z

    SUBMARINE GEOMORPHOLOGY OF EASTERN ROSS SEA AND SULZBERGER BAY, ANTARCTICA A Thocis By Submitted to the Graduate College of the Texas A 6 H Universicy in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE lanum...- ': Bsfhpeotrg l. Outer Snelf ?. ? Q ? ~elf =Bepr eeoione 3. inner Shelf 4~ B id gee S ed haunts l. Antaratic Uorine Sedhaento B seclhnents of Eastern Rom ssa - suleborgsr Boy Dissuasion Outer Shelf a. Ihwtstio, Xsostatio, snd Qlaoia1 Sister@ b. ?h igin...

  4. Weighting and Bayes Nets for Rollup of Surveillance Metrics

    SciTech Connect (OSTI)

    Henson, Kriste [Los Alamos National Laboratory; Sentz, Kari [Los Alamos National Laboratory; Hamada, Michael [Los Alamos National Laboratory

    2012-04-30T23:59:59.000Z

    The LANL IKE team proposes that the surveillance metrics for several data stream that are used to detect the same failure mode be weighted. Similarly, the failure mode metrics are weighted to obtain a subsystem metric. E.g., if there n data streams (nodes 1-n), the failure mode (node 0) metric is obtained as M{sub 0} = w{sub 1}M{sub 1} + {hor_ellipsis} + w{sub n}M{sub n}, where {Sigma}{sub i=1}{sup n} w{sub i} = 1. This proposal has been implemented with Bayes Nets using the Netica/IKE software by specifying an appropriate conditional probability table (CPT). This CPT is calculated using the same form as (1), where the data stream metrics for the true (T) and false (F) states are replaced by 1 and 0, respectively. Then using this CPT, the failure mode metric calculated by Netica/IKE equals (1). This result has two nice features. First, the rollup Bayes nets is doing can be easily explained. Second, because Bayes Nets can implement this rollup using Netica/IKE, then data marshalling (allocating next year's budget) can be studied. A proof that the claim 'failure mode metric calculated by Netica/IKE equals (1)' for n = 2 and n = 3 follows as well as the sketch of a proof by induction for general n.

  5. State of the Chesapeake Bay: second annual monitoring report, compendium. Report for January 1984-September 1985

    SciTech Connect (OSTI)

    Lynch, M.P.; Krome, E.C.

    1987-04-01T23:59:59.000Z

    The report is a summary of information collected at stations around the Chesapeake Bay. It is designed to be a more detailed/technical companion to the State Of The Bay Summary Report. It reports the results of the monitoring of the Chesapeake Bay in terms of its physical and chemical makeup (sediments, the distribution of toxics), the living resources, (plankton, benthos, submerged aquatic vegetation, birds), and the Patuxent River, as a case history.

  6. Geologic Assessment of the Damage Zone from the Second Test at Source Physics Experiment-Nevada (SPE-N)

    SciTech Connect (OSTI)

    ,

    2012-09-18T23:59:59.000Z

    The National Center for Nuclear Security (NCNS), established by the U.S. Department of Energy, National Nuclear Security Administration, is conducting a series of explosive tests at the Nevada National Security Site (NNSS; formerly the Nevada Test Site) that are designed to increase the understanding of certain basic physical phenomena associated with underground explosions. These tests will aid in developing technologies that might be used to detect underground nuclear explosions in support of verification activities for the Comprehensive Nuclear-Test-Ban Treaty (CTBT). The initial NCNS project is a series of explosive tests, known collectively as the Source Physics Experiment at the NNSS (SPE-N), being conducted in granitic rocks at the Climax stock in northern Yucca Flat. The SPE-N test series is designed to study the generation and propagation of seismic waves. The data will be used to improve the predictive capability of calculational models for detecting and characterizing underground explosions. The first SPE-N test (SPE-N-1) was a “calibration” shot conducted in May 2011, using 100 kilograms (kg) of explosives at the depth of 54.9 meters (m) (180 feet [ft]) in the U-15n source hole. SPE-N-2 was conducted in October 2011, using 1,000 kg of explosives at the depth of 45.7 m (150 ft) in the same source hole. Following the SPE-N-2 test, the core hole U-15n#10 was drilled at an angle from the surface to intercept the SPE-N-2 shot point location to obtain information necessary to characterize the damage zone. The desire was to determine the position of the damage zone near the shot point, at least on the northeast side, where the core hole penetrated it. The three-dimensional shape and symmetry of the damage zone are unknown at this time. Rather than spherical in shape, the dimensions of the damage zone could be influenced by the natural fracture sets in the vicinity. Geologic characterization of the borehole included geophysical logging, a directional survey, and geologic description of the core to document visual evidence of damage. Selected core samples were provided to Sandia National Laboratories (SNL) for laboratory tests (to be reported by SNL). A significant natural fault zone was encountered in the U-15n#10 angle core hole between the drilled depths of 149 and 155 ft (straight-line distance or range station [RS] from the shot point of 7.5 to 5.7 m). However, several of the fractures observed in the U-15n#10 hole are interpreted as having been caused by the explosion. These fractures are characterized by a “fresh,” mechanically broken look, with uncoated and very irregular surfaces. They tend to terminate against natural fractures and have orientations that differ from the previously defined natural fracture sets. The most distant fracture from the shot point that could be interpreted as having been caused by the explosion was seen at approximately RS 10.0 m. No other possibly explosion-induced fractures are apparent above the fault, but are common starting at RS 5.4 m, which is below the fault. It is unknown how the fault zone might have affected the propagation of seismic waves or how the materials in the fault zone (altered granite, breccia, gouge) were affected by the explosion. From RS 3.3 m to the end of the recovered core at RS 1.6 m, some of the core samples are softer and lighter in color, but do not appear to be weathered. It is thought this could be indicative of the presence of distributed microfracturing.

  7. Building America Whole-House Solutions for Existing HomesBay...

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

    non-invasive retrofit measures. Bay Ridge Gardens-Mixed Humid Affordable Multifamily Housing Deep Energy Retrofit More Documents & Publications Building America Whole-House...

  8. Current Perspectives on the Physical and Biological Processes of Humboldt Bay

    E-Print Network [OSTI]

    Schlosser, S. C.; Rasmussen, R.

    2007-01-01T23:59:59.000Z

    1893 and began ditching and dredging the marshland from thetions and Maintenance Dredging. Draft Program- matic 5-Yearwharf was abandoned. Early Dredging Humboldt Bay has been

  9. Current Perspectives on the Physical and Biological Processes of Humboldt Bay

    E-Print Network [OSTI]

    Schlosser, S. C.; Rasmussen, R.

    2007-01-01T23:59:59.000Z

    Humboldt Bay. Fab r icia sabella (Ehrenberg 1937) SABELLIDAEin estuarine mud. Banse (1979) reports Fab r icia sabellasabella from Newcastle Island, British Columbia; and

  10. Reference Phase of Fresnel Zone Plates

    E-Print Network [OSTI]

    G. W. Webb

    2003-02-28T23:59:59.000Z

    The standard zone plate assumes that the shortest ray connecting a radiation source and a detection point has a phase of 0 deg thereby defining a reference phase. Here we examine the experimental consequences of varying this reference phase from 0 deg to 360 deg. It is concluded that reference phase is an intrinsic and useful property of zone plates.

  11. Treating tar sands formations with karsted zones

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

    2010-03-09T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. The tar sands formation may have one or more karsted zones. Methods may include providing heat from one or more heaters to one or more karsted zones of the tar sands formation to mobilize fluids in the formation. At least some of the mobilized fluids may be produced from the formation.

  12. Opportunistic Transient-Fault Detection Mohamed A. Gomaa and T. N. Vijaykumar

    E-Print Network [OSTI]

    Vijaykumar, T. N.

    Opportunistic Transient-Fault Detection Mohamed A. Gomaa and T. N. Vijaykumar School of Electrical susceptibility of microprocessors to transient faults. Most current proposals for transient-fault detection use redundancy by exploiting reuse's implicit redundancy within the main thread for fault detection with vir

  13. 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.

  14. 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).

  15. 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.

  16. 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...

  17. 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.

  18. 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...

  19. Dynamic leakage of faults during differential depletion: Theory, models, and examples from the Niger delta

    SciTech Connect (OSTI)

    Watts, N.L.; Kaars Sijpestein, C.H.; Osai, L.N.; Okoli, O.C. (Shell Petroleum Development Co. of Nigeria, Lagos (Nigeria))

    1991-08-01T23:59:59.000Z

    Previous studies of fault sealing have addressed possible fault leakage during secondary migration due to the effects of increased hydrocarbon-water capillary pressure, fracturing, or small-scale incremental fault movements. Of equal importance to production geologists is the failure and leakage of faults during field development due to differential depletion of adjacent fault blocks. This paper examines the unique problems associated with this dynamic leakage of faults. It is theoretically shown that the fault sealing mechanism, and the extent of the seal, directly influences the failure process which in turn results in a variety of favorable and unfavorable effects on field development. The qualitative models give considerable insight into such aspects as oil-column expansion and resaturation losses, interfault block aquifer support (with important implications to material balance calculations), possible leakage or spillage of oil across faults, and potential fault failure during (re)injection projects. Examples of dynamic fault leakage are presented from selected fields of the Niger delta.

  20. 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.

  1. 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.

  2. C-testability of a ripple carry adder under multiple faults

    E-Print Network [OSTI]

    Bommena, Manoher V.

    1992-01-01T23:59:59.000Z

    . Fault Types IV FAULT SIMULATION AND EXPERIMENT . A. Physical Line Fault Simulation . 1. Layout 2. Simulation B. Functional Fault Simulation and Experiment . 1. Probability of Un-detection 2. Efficiency of the Test Vectors and Reduced Test V... RESULTS VI CONCLUSIONS AND RECOMMENDATIONS 9 10 12 18 18 19 22 27 27 Set . 30 REFERENCES 41 APPENDIX A APPENDIX B . Page APPENDIX C . I. IST OF TABLES TABLE Page I Expressions from the physical line fault simulation stage 24 II...

  3. Physics and Physical Oceanography Data Report 2000-2 Tow-Yo and Temperature Data from Trinity Bay,

    E-Print Network [OSTI]

    deYoung, Brad

    Physics and Physical Oceanography Data Report 2000-2 Tow-Yo and Temperature Data from Trinity Bay Oeanography Memorial University of Newfoundland St. John's, Newfoundland A1B 3X7 #12;ii Abstract Trinity Bay

  4. The health of Florida Bay, which lies be-

    E-Print Network [OSTI]

    Handy, Susan L.

    of the 1960s and '7()s, and some environmentalists warned of ecological Annageddon. As a community planner building a single house or office building, simply by getting the zoning changed. What we need now

  5. Enhanced Land Subsidence and Seidment Dynamics in Galveston Bay- Implications for Geochemical Processes and Fate and Transport of Contaminants

    E-Print Network [OSTI]

    Almukaimi, Mohammad E

    2013-07-05T23:59:59.000Z

    ENHANCED LAND SUBSIDENCE AND SEDIMENT DYNAMICS IN GALVESTON BAY- IMPLICATIONS FOR GEOCHEMICAL PROCESSES AND FATE AND TRANSPORT OF CONTAMINANTS A Thesis by MOHAMMAD ALMUKAIMI Submitted to the Office of Graduate Studies of Texas A... August 2013 Major Subject: Oceanography Copyright 2013 Mohammad Almukaimi ii ABSTRACT Galveston Bay is the second largest estuary in the Gulf of Mexico. The bay?s watershed and shoreline contains one of the largest concentrations...

  6. 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

  7. Melt generation, crystallization, and extraction beneath segmented oceanic transform faults

    E-Print Network [OSTI]

    Gregg, Patricia M.

    We examine mantle melting, fractional crystallization, and melt extraction beneath fast slipping, segmented oceanic transform fault systems. Three-dimensional mantle flow and thermal structures are calculated using a ...

  8. 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 ...

  9. Detecting and tolerating Byzantine faults in database systems

    E-Print Network [OSTI]

    Vandiver, Benjamin Mead, 1978-

    2008-01-01T23:59:59.000Z

    This thesis describes the design, implementation, and evaluation of a replication scheme to handle Byzantine faults in transaction processing database systems. The scheme compares answers from queries and updates on multiple ...

  10. Detecting and Tolerating Byzantine Faults in Database Systems

    E-Print Network [OSTI]

    Vandiver, Benjamin Mead

    2008-06-30T23:59:59.000Z

    This thesis describes the design, implementation, and evaluation of a replication scheme to handle Byzantine faults in transaction processing database systems. The scheme compares answers from queries and updates on multiple ...

  11. Cryptic Faulting and Multi-Scale Geothermal Fluid Connections...

    Open Energy Info (EERE)

    from Mt Resistivity Surveying Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Cryptic Faulting and Multi-Scale Geothermal Fluid Connections in...

  12. Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below...

    Open Energy Info (EERE)

    3d Magnetotelluric Surveying Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below...

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

    Open Energy Info (EERE)

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

  14. 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;...

  15. 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...

  16. 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

  17. 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.

  18. Fault Tolerant WideArea Parallel Computing Jon B. Weissman

    E-Print Network [OSTI]

    Weissman, Jon

    hosts go down and get rebooted, and network faults where links go down. A single monolithic solu­ tion not fit their assumptions, the maxim ``pay for what you need'' has been proposed as a guiding principle

  19. 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...

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

    E-Print Network [OSTI]

    Rajaraman, Srinivasan

    2006-08-16T23:59:59.000Z

    Fault detection and diagnosis have gained central importance in the chemical process industries over the past decade. This is due to several reasons, one of them being that copious amount of data is available from a large number of sensors...

  1. Analysis of transmission system faults in the phase domain

    E-Print Network [OSTI]

    Zhu, Jun

    2004-11-15T23:59:59.000Z

    In order to maintain a continuous power suppply, nowadays relays in transmission systems are required to be able to deal with complicated faults involving non-conventional connections, which poses a challenge to the short circuit analysis...

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

    Open Energy Info (EERE)

    Geothermal Field, CA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Controls on Fault-Hosted Fluid Flow: Preliminary Results from the...

  3. analysis fault reactivation: Topics by E-print Network

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

    23 24 25 Next Page Last Page Topic Index 81 System level Analysis of Fault Effect in an Automotive Environment CiteSeer Summary: In the last years, new requirements in terms of...

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

    Open Energy Info (EERE)

    of primarily E-W directed extension along N-NNW striking normal faults. Water well drilling on the eastern slopes of the Wassuk Range, west of the city of Hawthorne, Nevada...

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

    E-Print Network [OSTI]

    Rajaraman, Srinivasan

    2006-08-16T23:59:59.000Z

    Fault detection and diagnosis have gained central importance in the chemical process industries over the past decade. This is due to several reasons, one of them being that copious amount of data is available from a large ...

  6. 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...

  7. Mobile machine hazardous working zone warning system

    DOE Patents [OSTI]

    Schiffbauer, W.H.; Ganoe, C.W.

    1999-08-17T23:59:59.000Z

    A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine. 3 figs.

  8. Mixing zones in magnetized differentially rotating stars

    E-Print Network [OSTI]

    V. Urpin

    2005-09-29T23:59:59.000Z

    We study the secular instability of magnetized differentially rotating radiative zones taking account of viscosity and magnetic and thermal diffusivities. The considered instability generalizes the well-known Goldreich-Schubert-Fricke instability for the case of a sufficiently strong magnetic field. In magnetized stars, instability can lead to a formation of non-spherical unstable zones where weak turbulence mixes the material between the surface and interiors. Such unstable zones can manifest themselves by a non-spherical distribution of abundance anormalies on the stellar surface.

  9. Mobile machine hazardous working zone warning system

    DOE Patents [OSTI]

    Schiffbauer, William H. (Connellsville, PA); Ganoe, Carl W. (Pittsburgh, PA)

    1999-01-01T23:59:59.000Z

    A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation thereof. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine.

  10. SOME EFFECTS OF HYDRAULIC DREDGING AND COASTAL DEVELOPMENT IN BOCA CIEGA BAY, FLORIDA 1

    E-Print Network [OSTI]

    SOME EFFECTS OF HYDRAULIC DREDGING AND COASTAL DEVELOPMENT IN BOCA CIEGA BAY, FLORIDA 1 BY JOHN L. PETERSBURG BEACH, FLA. 33706 ABSTRACT Filling of 1,400 hectares (3,500 acres) of bay by hy- draulic dredging in dredged ItreltS wit.h those in relatively undisturbed ttreas. Hydl'ltulic dredging becmue. ltll ltccepted

  11. Mercury speciation in Galveston Bay, Texas: the importance of complexation by natural organic ligands

    E-Print Network [OSTI]

    Han, Seunghee

    2005-02-17T23:59:59.000Z

    of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2004 Major Subject: Oceanography MERCURY SPECIATION IN GALVESTON BAY, TEXAS: THE IMPORTANCE OF COMPLEXATION BY NATURAL ORGANIC LIGANDS A Dissertation by SEUNGHEE HAN.... Cifuentes (Member) Paul A. Lindahl (Member) Wilford D. Gardner (Head of Department) December 2004 Major Subject: Oceanography iii ABSTRACT Mercury Speciation in Galveston Bay, Texas: The Importance of Complexation...

  12. Feeding habits of the Guiana dolphin, Sotalia guianensis (Cetacea: Delphinidae), in Norte Bay,

    E-Print Network [OSTI]

    Simões-Lopes, Paulo César

    Feeding habits of the Guiana dolphin, Sotalia guianensis (Cetacea: Delphinidae), in Norte Bay contents of 18 Guiana dolphins stranded or accidentally caught by fishing around Norte Bay of Santa del delfín costero, Sotalia guianenSiS (Cetacea: Delphinidae), en la bahía Norte al sur de Brasil

  13. REPRODUCTIVE LONGEVITY OF DRIFTING KELP MACROCYSTIS PYRIFERA (PHAEOPHYCEAE) IN MONTEREY BAY, USA1

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    REPRODUCTIVE LONGEVITY OF DRIFTING KELP MACROCYSTIS PYRIFERA (PHAEOPHYCEAE) IN MONTEREY BAY, USA1 index words: dispersal; drifting; germination; kelp; longevity; Macrocystis; Monterey Bay; rafts, especially for seaweeds (Norton 1992, Eckman 1996, Kinlan and Gaines 2003, Reed et al. 2006). The giant kelp

  14. Nitrogen sources and cycling in the San Francisco Bay Estuary: A nitrate dual isotopic composition approach

    E-Print Network [OSTI]

    Paytan, Adina

    as 25.0%) at the Sacramento­San Joaquin River delta region give rise to a wide range of d18ONO3 valuesNitrogen sources and cycling in the San Francisco Bay Estuary: A nitrate dual isotopic composition18O) within the estuarine system of San Francisco (SF) Bay, California, to explore the utility

  15. Optimal Pollution Mitigation in Monterey Bay Based on Coastal Radar Data and Nonlinear

    E-Print Network [OSTI]

    Marsden, Jerrold

    Optimal Pollution Mitigation in Monterey Bay Based on Coastal Radar Data and Nonlinear Dynamics run-off which is a typical source of pollution in the bay. We show that a HF radar-based pollution release scheme using this flow structure reduces the impact of pollution on the coastal envi- ronment

  16. MODELING PHYTOPLANKTON ABUNDANCE IN SAGINAW BAY, LAKE HURON: USING ARTIFICIAL NEURAL NETWORKS TO DISCERN FUNCTIONAL INFLUENCE

    E-Print Network [OSTI]

    MODELING PHYTOPLANKTON ABUNDANCE IN SAGINAW BAY, LAKE HURON: USING ARTIFICIAL NEURAL NETWORKS; phytoplankton Abbreviations: ANN, artificial neural network; ClÀ , chloride; DOC, dissolved organic carbon; Kd Phytoplankton abundance, as chl a, in Saginaw Bay, Lake Huron was modeled using arti- ficial neural networks

  17. The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An...

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

    The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An In Situ FTIR and TPDTPR Study. The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An In Situ FTIR and TPDTPR...

  18. Time Series Measurements of Temperature, Current Velocity, and Sediment Resuspension in Saginaw Bay

    E-Print Network [OSTI]

    Time Series Measurements of Temperature, Current Velocity, and Sediment Resuspension in Saginaw Bay and verification. These measurements will be made as part of this project. Measurements of sediment resuspension sediment resuspension in the bay during the spring. Measurements of sediment resuspension are important

  19. The influence of oceanic swell on flows over an estuarine intertidal mudflat in San Francisco Bay

    E-Print Network [OSTI]

    Talke, Stefan

    The influence of oceanic swell on flows over an estuarine intertidal mudflat in San Francisco Bay S mudflat. The observations indicate that long-period (10­20 s) ocean waves are a potentially important, we deployed an autonomous SonTek Hydra system on a mudflat in Central San Francisco Bay, and measured

  20. Final Report for Sea-level Rise Response Modeling for San Francisco Bay Estuary Tidal

    E-Print Network [OSTI]

    Fleskes, Joe

    i Final Report for Sea-level Rise Response Modeling for San Francisco Bay Estuary Tidal Marshes Refuge in northern San Francisco Bay, California. #12;iii Final Report for Sea-level Rise Response)................................................................... 7 Sea-level rise scenario model inputs