Sample records for ouachita thrust belt

  1. Subsidence history of the Alabama promontory in response to Late Paleozoic Appalachian-Ouachita thrusting

    SciTech Connect (OSTI)

    Whitting, B.M.; Thomas, W.A. (Univ. of Kentucky, Lexington, KY (United States). Dept. of Geological Sciences)

    1994-03-01T23:59:59.000Z

    The Alabama promontory of North American continental crust was framed during late Precambrian-Cambrian rifting by the northeast-striking Blue Ridge rift and the northwest-striking alabama-Oklahoma transform fault. A passive margin persisted along the western side of the promontory from Cambrian to Mississippian time, but the eastern side was affected by the Taconic and Acadian orogenies. Prior to initiation of Ouachita and Appalachian (Alleghanian) thrusting, the outline of the rifted margin of continental crust on the Alabama promontory remained intact; and the late paleozoic thrust belt conformed to the shape of the promontory, defining northwest-striking Ouachita thrust faults along the southwest side of the promontory, north-striking Appalachian (Georgia-Tennessee) thrust faults on the east, and northeast-striking Appalachian (Alabama) thrust faults across the corner of the promontory. Subsidence profiles perpendicular to each of the strike domains of the thrust belt have been constructed by calculating total subsidence from decompacted thickness of the synorogenic sedimentary deposits. The profile perpendicular to the Ouachita thrust belt shows increasing subsidence rates through time and toward the thrust front, indicating the classic signature of an orogenic foreland basin. The profile perpendicular to the Georgia-Tennessee Appalachian thrust belt similarly shows increasing subsidence rates through time and toward the orogenic hinterland. These quantitative results support the conclusion that Black Warrior basin subsidence is tectonically rather than sedimentologically driven, and the timing of subsidence events reported here has implications for regional tectonic models.

  2. Thermal and Structural Constraints on the Tectonic Evolution of the Idaho-Wyoming-Utah Thrust Belt

    E-Print Network [OSTI]

    Chapman, Shay Michael

    2013-08-09T23:59:59.000Z

    The timing of motion on thrust faults in the Idaho-Wyoming-Utah (IWU) thrust belt comes from synorogenic sediments, apatite thermochronology and direct dating of fault rocks coupled with good geometrical constraints of the subsurface structure...

  3. At several localities around the world, thrust belts have developed on both sides of

    E-Print Network [OSTI]

    ten Brink, Uri S.

    of the Eastern Greater Antilles arc (Hispaniola and Puerto Rico), whereas a south-verging thrust belt called; Fig. 2). The Eastern Greater Antilles arc (Hispaniola and Puerto Rico) of the northeastern Caribbean

  4. The Role of Climate in the Deformation of a Fold and Thrust Belt

    E-Print Network [OSTI]

    Steen, Sean Kristian

    2012-02-14T23:59:59.000Z

    and uplifted in large folds. In order to test this and related ideas in a natural example, we have compared modeled rainfall to measured thrust sheet displacement, geometry, and internal deformation in the Appalachian fold and thrust belt. We use mean annual...

  5. Structure and evolution of the active fold and thrust belt of southwestern Taiwan using GPS geodesy

    E-Print Network [OSTI]

    Hickman, John Bibb

    1999-01-01T23:59:59.000Z

    ) from north to south, a dramatic change in the width of the deformation front of the fold and thrust belt which is accentuated across the Michih fault, and 4) the Tulungwan fault, a bounding fault between the Western Foothills and the Slate Belt, appears...

  6. Growth and erosion of fold-and-thrust belts with an application to the Aconcagua fold-and-thrust belt, Argentina

    E-Print Network [OSTI]

    Hilley, George

    -and-thrust belt, Argentina G. E. Hilley1 and M. R. Strecker Institut fu¨r Geowissenschaften, Universita¨t Potsdam, Potsdam, Germany V. A. Ramos Department de Geologia, Universidad de Buenos Aires, Buenos Aires, Argentina in the central Andes of Argentina where wedge development over time is well constrained. We solve

  7. Implications of thermal events on thrust emplacement sequence in the Appalachian fold and thrust belt: Some new vitrinite reflectance data

    SciTech Connect (OSTI)

    Lewis, S.E.; Hower, J.C. (Montana Tech, Butte (USA))

    1990-11-01T23:59:59.000Z

    Interpretation of existing geothermometry data combined with new vitrinite reflectance data, within the framework of a detailed composite tectonic setting, elucidates the evolution of structural sequencing of thrust sheets during the Alleghanian event in the Valley and Ridge Province in Virginia. That the Pulaski thrust sheet preceded the Saltville thrust sheet in the emplacement sequence, and that both reached thermal maxima prior to, or during, respective emplacement may be inferred from vitrinite and other geothermometry data. In contrast, the Narrows and St. Clair thrust sheets probably each attained their thermal maximum after emplacement. New vitrinite reflectance data are consistent with CAI and other temperature-sensitive information heretofore ascertained in the Valley and Ridge Province and support previously established maximum temperatures of ca. 200C for strata of the Saltville thrust sheet as young as Mississippian. R{sub max} values from Mississippian coals in the Price Formation of the Saltville sheet, beneath but near the Pulaski thrust, range from 1.61% to 2.60%. At the structural front of the fold and thrust belt, a single Mississippian coal sample from the Bluefield Formation yields an R{sub max} value of 1.35%. Those coals showing highest R{sub max} values are more intensely fractured with secondary minerals filling the fractures. Warm fluids introduced during tectonic events may have played at least as important a role as that of combined stratigraphic and tectonic burial.

  8. Seismological evidence for crustal-scale thrusting in the Zagros mountain belt (Iran)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Seismological evidence for crustal-scale thrusting in the Zagros mountain belt (Iran) Anne Paul 1 Grenoble Cedex, France 2 International Institute of Earthquake Engineering and Seismology, Tehran, Iran 3 that the crust of Zagros underthrusts the crust of central Iran along the MZT considered as a crustal

  9. Mass movement-induced fold-and-thrust belt structures in unconsolidated sediments in Lake Lucerne (Switzerland)

    E-Print Network [OSTI]

    Gilli, Adrian

    Mass movement-induced fold-and-thrust belt structures in unconsolidated sediments in Lake Lucerne coring in Lake Lucerne, Switzerland, have revealed surprising deformation structures in flat in Lake Lucerne affecting four sections of the lake floor with areas ranging from 025 to 65 km2 in area

  10. The vertical separation of mainshock rupture and microseismicity at Qeshm island in the Zagros fold-and-thrust belt, Iran

    E-Print Network [OSTI]

    Elliott, John

    -and-thrust belt, Iran E. Nissen a, , F. Yamini-Fard b , M. Tatar b , A. Gholamzadeh b,1 , E. Bergman c , J Engineering and Seismology, PO Box 19395-3913, Tehran, Iran c Department of Physics, University of Colorado rights reserved. 1. Introduction The Zagros mountains in south-western Iran are one of the most rapidly

  11. Thrust belt architecture of the central and southern Western Foothills of Taiwan

    E-Print Network [OSTI]

    Rodriguez-Roa, Fernando Antonio

    2009-05-15T23:59:59.000Z

    segments. The restored position of the preexisting normal faults places the current trace of the Western Foothills-Slate Belt boundary beneath the Coastal Range. The restoration of WFFTBs rocks to their depositional locations also supports the tectonic...

  12. Predicting stress distributions in fold-and-thrust belts and accretionary wedges by optimization

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    element method (EEM) provides the stress distribution in geometrical models of folds, relevant to fold for discontinuities. The example chosen to illustrate the potential of the EEM and to validate our implementation is the thrusting of a rectangular sheet over a flat and weak de´collement. The EEM reproduces the solution proposed

  13. Crustal structure of the Ouachita Mountains region from lithosphere seismic profiles

    E-Print Network [OSTI]

    Kokkoros, George Fotios

    1989-01-01T23:59:59.000Z

    implies, this is a region of numerous large scale, north verging, thrust faults cutting east-west trending folds. The Choctaw thrust I'ault is commonly taken to be the boundary between the Arkoma basin and the Frontal thrust zone of the Ouachitas.... At this boundary the basement dips steeply southward to depths of 10, 000 m (Flawn et al. , 1961). It is believed (Viele, 1973) that the basement is not involved in the thrusting, but acts as a ramp for the thrust faulting of deep-water Paleozoic deposits...

  14. Integration of geothermal data along the Balcones/Ouachita trend, central Texas. Final report

    SciTech Connect (OSTI)

    Woodruff, C.M. Jr.; Gever, C.; Snyder, Fred R.; Wuerch, David Robert

    1983-01-01T23:59:59.000Z

    This report presents data that address possible controls on warm-water resources. Data are presented on a series of maps, and interpretations appear in the brief text accompanying the maps. It is thought that structural controls provided by the Balcones Fault Zone on the west and by the Luling-Mexia-Talco Fault Zone on the east localize the warm waters. The ultimate controlling attribute is the foundered Ouachita structural belt, which, in turn, has controlled the orientation and magnitude of displacement of the superjacent normal fault systems. This thesis is supported by maps (in pocket) showing the following: distribution of thermal waters measured in wells along the Balcones/Ouachita structural trend showing water temperature in /sup 0/F, total depth of the well measured, water salinity in parts per million, and the geologic formation producing the water; structural contours on the base of the Cretaceous System showing the configuration of the Paleozoic Ouachita basement; structural configuration of the Balcones and Luling Fault Zone, Mexia and Talco Fault Zone, and foreland areas adjacent to the Ouachita Orogen using data from the Buda Limestone, Sligo Formation, and Ellenburger Group; Landsat lineaments and Bouguer gravity contours; and geothermal gradient contours of the Balcones/Ouachita trend based on thermal values from Paleozoic and selected Mesozoic formations.

  15. San Juan Montana Thrust Belt WY Thrust Belt Black Warrior

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14 Dec-14Table 4.April19. AverageForecast

  16. Deformation of layered rocks in the ramp regions of thrust faults: a study with rock models

    E-Print Network [OSTI]

    Chester, Judith Savaso

    1985-01-01T23:59:59.000Z

    and thrust belts for example, thrust faults commonly occur along specific stratigraphic horizons, and folding and faulting within thrust sheets often involves slip along bedding planes (e. g. , Rich, 1934; Douglas, 1950; Dahl str om, 1970; Price, 1981...). With the regional framework of many fold and thrust belts well estab- lished, the current emphasis of many studies has turned to defining the geometries, kinematics, and deformation mechanisms of individual thrust belt structures, and the intrinsic and extrinsic...

  17. Ouachita Electric Coop Corp | 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 Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: EnergyOuachita Electric Coop Corp Jump to:

  18. Solid bitumen at Atigun Gorge, central Brooks Range front: Implications for oil exploration in the North Slope fold and thrust belt

    SciTech Connect (OSTI)

    Howell, D.G.; Johnsson, M.J.; Bird, K.J. (U.S. Geological Survey, Menlo Park, CA (United States))

    1991-03-01T23:59:59.000Z

    The Atigun Gorge area of the north-central Brooks range is a structurally complex region in which a sequence of north-verging duplex structures involving Paleozoic and Mesozoic Ellesmerian continental margin deposits are structurally overlain by a south-verging thrust of Brookian foreland basin deposits of Albian age. The resulting structural triangle zone is marked by numerous small-scale thrusts involving Permian and Triassic strata in which solid bitumen, occupying fissures up to 10 cm wide and several meters in length, has been found. The presence of aromatics in the odorless, black material was confirmed by ultraviolet fluorescence following extraction in dichloromethane. The occurrence of solid bitumen at Atigun Gorge adds to a growing inventory of hydrocarbon-filled fractures found mostly in Cretaceous rocks in the Brooks Range foothills. These occurrences are consistent with a model of hydrocarbon generation beneath the northern margin of the Brooks Range. The regional distribution of vitrinite reflectance isograds suggests that the northern margin of the Brooks Range and the adjoining foreland basin deposits of the North Slope have experienced similar thermal histories. The 0.6% vitrinite reflectance isograd intersects the land surface along the southern margin of the foreland and the 2.0% isograd lies within the northern part of the range. Although these relations suggest the possibility of petroleum resources at shallow depths beneath the Brooks Range foothills, they also indicate that a considerable amount of differential uplift has occurred, probably resulting in redistribution and some leakage of any oil and gas accumulations.

  19. abakaliki fold belt: Topics by E-print Network

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

    Cenozoic partitioning of oblique plate convergence in the Zagros fold-and-thrust belt (Iran) Physics Websites Summary: of oblique plate convergence in the Zagros fold-and-thrust...

  20. Ouachita Parish, Louisiana: Energy Resources | 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 Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: EnergyOuachita Electric Coop Corp Jump

  1. Measuring axial pump thrust

    DOE Patents [OSTI]

    Suchoza, B.P.; Becse, I.

    1988-11-08T23:59:59.000Z

    An apparatus for measuring the hydraulic axial thrust of a pump under operation conditions is disclosed. The axial thrust is determined by forcing the rotating impeller off of an associated thrust bearing by use of an elongate rod extending coaxially with the pump shaft. The elongate rod contacts an impeller retainer bolt where a bearing is provided. Suitable measuring devices measure when the rod moves to force the impeller off of the associated thrust bearing and the axial force exerted on the rod at that time. The elongate rod is preferably provided in a housing with a heat dissipation mechanism whereby the hot fluid does not affect the measuring devices. 1 fig.

  2. Measuring axial pump thrust

    DOE Patents [OSTI]

    Suchoza, Bernard P. (McMurray, PA); Becse, Imre (Washington, PA)

    1988-01-01T23:59:59.000Z

    An apparatus for measuring the hydraulic axial thrust of a pump under operation conditions is disclosed. The axial thrust is determined by forcing the rotating impeller off of an associated thrust bearing by use of an elongate rod extending coaxially with the pump shaft. The elongate rod contacts an impeller retainer bolt where a bearing is provided. Suitable measuring devices measure when the rod moves to force the impeller off of the associated thrust bearing and the axial force exerted on the rod at that time. The elongate rod is preferably provided in a housing with a heat dissipation mechanism whereby the hot fluid does not affect the measuring devices.

  3. Physics Thrust Areas

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomassPPPOPetroleum ReservesThrust Areas Physics Thrust Areas

  4. Structural geology of the Irons Fork - North Fork Creek area, Lake Ouachita, Arkansas

    E-Print Network [OSTI]

    White, Marjorie Ann

    1980-01-01T23:59:59.000Z

    shale marks an abrupt increase in depo- sitional rate for Carboniferous rocks; Morris (1974) calculates a rate of 333 m/m. y. Cline (1966) believes this is the beginning of flysch sedimentation within the Ouachita trough. A southeastern source has.... The stratigraphic units in the area can be divided into three structural packages with different mechanical responses based on their observed style of deformation. The Mazarn-Womble shale units behaved as one macroscopically ductile package. Flexural flow folds...

  5. A method of assessment of environmental impacts on remote campsites at Lake Ouachita

    E-Print Network [OSTI]

    Kuhl, Jeffrey James

    1983-01-01T23:59:59.000Z

    . Scope of Investigation This study examined recreational activity and the resulting changes in the environment (impacts) at a water based recreation area. The findings of this study are~ generalizable only to areas where conditions, both physically... (Chairman of Committee) E ward Heat (Member) De 1 ma r nke (Nembe r ) Leslie M. Reid (Head of Department) May 1983 111 ABSTRACT A Nethod of Assessment of Environmental Impacts on Remote Campsites at Lake Ouachita. (Nay 1983) Jeffrey James Kuhl, B...

  6. Structural geology of the Irons Fork - North Fork Creek area, Lake Ouachita, Arkansas

    E-Print Network [OSTI]

    White, Marjorie Ann

    1980-01-01T23:59:59.000Z

    shale marks an abrupt increase in depo- sitional rate for Carboniferous rocks; Morris (1974) calculates a rate of 333 m/m. y. Cline (1966) believes this is the beginning of flysch sedimentation within the Ouachita trough. A southeastern source has.... The stratigraphic units in the area can be divided into three structural packages with different mechanical responses based on their observed style of deformation. The Mazarn-Womble shale units behaved as one macroscopically ductile package. Flexural flow folds...

  7. Laterally bendable belt conveyor

    DOE Patents [OSTI]

    Peterson, William J. (Coraopolis, PA)

    1985-01-01T23:59:59.000Z

    An endless, laterally flexible and bendable belt conveyor particularly adapted for coal mining applications in facilitating the transport of the extracted coal up- or downslope and around corners in a continuous manner is disclosed. The conveying means includes a flat rubber belt reinforced along the middle portion thereof along which the major portion of the belt tension is directed so as to cause rotation of the tubular shaped belt when trammed around lateral turns thus preventing excessive belt bulging distortion between adjacent belt supports which would inhibit belt transport. Pretension induced into the fabric reinforced flat rubber belt by conventional belt take-up means supports the load conveyed when the belt conveyor is making lateral turns. The carrying and return portions of the belt are supported and formed into a tubular shape by a plurality of shapers positioned along its length. Each shaper is supported from above by a monorail and includes clusters of idler rollers which support the belt. Additional cluster rollers in each shaper permit the belt supporting roller clusters to rotate in response to the belt's operating tension imposed upon the cluster rollers by induced lateral belt friction forces. The freely rotating roller clusters thus permit the belt to twist on lateral curves without damage to itself while precluding escape of the conveyed material by effectively enclosing it in the tube-shaped, inner belt transport length.

  8. CFES RESEARCH THRUSTS: Energy Storage

    E-Print Network [OSTI]

    L, James Jian-Qiang

    CFES RESEARCH THRUSTS: Energy Storage Wind Energy Solar Energy Smart Grids Smart Buildings For our with the student to finalize the project plan. To sponsor an Energy Scholar, a company agrees to: Assign

  9. Tectonic setting and origin of the Black Warrior basin

    SciTech Connect (OSTI)

    Thomas, W.A.; Whiting, B.M. (Univ. of Kentucky, Lexington, KY (United States). Dept. of Geological Sciences)

    1994-03-01T23:59:59.000Z

    The Black Warrior basin has a triangular outline that is framed by the Ouachita thrust belt on the southwest, the Appalachian thrust belt on the southeast, and the North American craton on the north. The stratigraphy of the Black Warrior basin includes two distinct parts: a Cambrian-Mississippian passive-margin carbonate-shelf succession, and a Mississippian-Pennsylvanian clastic succession, the lower (Mississippian) part of which grades northeastward into a carbonate-shelf facies. The provenance and dispersal system of the Mississippian-Pennsylvanian clastic deposits have been interpreted in four different ways, each of which has significantly different implications for origin of the basin: (1) Ouachita orogenic source and northeastward prograding; (2) Alabama Appalachian orogenic source and northwestward prograding; (3) Georgia-tennessee Appalachian orogenic source and westward prograding; and (4) cratonic source and southward prograding. Subsidence history determined from calculations of decompacted thickness indicates that (1) the Black Warrior basin is an orogenic foreland basin related primarily to the Ouachita thrust load on the southwest; (2) later emplacement of the Alabama Appalachian thrust belt modified the southeastern side of the Ouachita-related Black Warrior foreland basin; and (3) a separate foreland basin, representing the southern end of the Appalachian foreland basin, formed in response to the Georgia-Tennessee Appalachian thrust load. The previously used criteria do not necessarily support a unique interpretation, but synthesizing these data with subsidence history leads to the conclusion that the Black Warrior basin is a tectonically driven, orogenic foreland basin dominated by Ouachita thrusting and modified by Appalachian thrusting.

  10. Emplacement of the Moxa Arch and interaction with the Western Overthrust Belt, Wyoming

    E-Print Network [OSTI]

    Kraig, David Harry

    1986-01-01T23:59:59.000Z

    of MASTER OF SCIENCE May 1986 Major Subject: Geology EMPLACEMENT OF THE MOXA ARCH AND INTERACTION WITH THE WESTERN OVERTHRUST BELT, WYOMING A Thesis by DAVID HARRY KRAIG Approved as to style and content by: David V. Wiltschko (Chairman of Committee... College B. S. The University of New Mexico Chairman of Advisory Committee: Dr. David V. Wiltschko The northern segment of the Moxa Arch is modeled as uplifted along a low-angle thrust (Moxa thrust, MT). The west-verging MT cuts up section from...

  11. Hydrogeochemical and stream-sediment reconnaissance, orientation study, Ouachita Mountain area, Arkansas. National Uranium Resource Evaluation Program

    SciTech Connect (OSTI)

    Steele, K. F.

    1982-08-01T23:59:59.000Z

    A hydrogeochemical ground water orientation study was conducted in the multi-mineralized area of the Ouachita Mountains, Arkansas in order to evaluate the usefulness of ground water as a sampling medium for uranium exploration in similar areas. Ninety-three springs and nine wells were sampled in Clark, Garland, Hot Springs, Howard, Montgomery, Pike, Polk, and Sevier Counties. Manganese, barite, celestite, cinnabar, stibnite, copper, lead, and zinc are present. The following parameters were determined: pH, conductivity, alkalinity, U, Br, Cl, F, He, Mn, Na, V, Al, Dy, NO/sub 3/, NH/sub 3/, SO/sub 4/, and PO/sub 4/. The minerals appear to significantly affect the chemistry of the ground water. This report is issued in draft form, without detailed technical and copy editing. This was done to make the report available to the public before the end of the National Uranium Resource Evaluation.

  12. Thrust bolting: roof bolt support apparatus

    DOE Patents [OSTI]

    Tadolini, Stephen C. (Lakewood, CO); Dolinar, Dennis R. (Golden, CO)

    1992-01-01T23:59:59.000Z

    A method of installing a tensioned roof bolt in a borehole of a rock formation without the aid of a mechanical anchoring device or threaded tensioning threads by applying thrust to the bolt (19) as the bonding material (7') is curing to compress the strata (3) surrounding the borehole (1), and then relieving the thrust when the bonding material (7') has cured.

  13. 3D Structural Analysis of the Benton Uplift, Ouachita Orogen, Arkansas

    E-Print Network [OSTI]

    Johnson, Harold Everett

    2012-02-14T23:59:59.000Z

    that the Maumelle Chaotic Zone represents a tectonic m?lange. Other researchers interpret the chaotic units as olistrome deposits [Morris, 1989]. The complexity of the geology increases southward to the northern margin of the Benton Uplift [Blythe et al., 1988..., Nelson et al., 1982; Figure 5B, Blythe et al. 1988; Figure 5C, Viele and Thomas 1989; Figure 5D, Arbenz 2008]. However, there are some important differences with each interpretation that will be discussed below. 3.1.1 Frontal Thrust Zone Two...

  14. SLH Timing Belt Powertrain

    SciTech Connect (OSTI)

    Schneider, Abe

    2014-04-09T23:59:59.000Z

    The main goal of this proposal was to develop and test a novel powertrain solution for the SLH hydroEngine?, a low-cost, efficient low-head hydropower technology. Nearly two-thirds of U.S. renewable electricity is produced by hydropower (EIA 2010). According to the U.S. Department of Energy; this amount could be increased by 50% with small hydropower plants, often using already-existing dams (Hall 2004). There are more than 80,000 existing dams, and of these, less than 4% generate power (Blankinship 2009). In addition, there are over 800 irrigation districts in the U.S., many with multiple, non-power, low-head drops. These existing, non-power dams and irrigation drops could be retrofitted to produce distributed, baseload, renewable energy with appropriate technology. The problem is that most existing dams are low-head, or less than 30 feet in height (Ragon 2009). Only about 2% of the available low-head hydropower resource in the U.S. has been developed, leaving more than 70 GW of annual mean potential low-head capacity untapped (Hall 2004). Natel Energy, Inc. is developing a low-head hydropower turbine that operates efficiently at heads less than 6 meters and is cost-effective for deployment across multiple low-head structures. Because of the unique racetrack-like path taken by the prime-movers in the SLH, a flexible powertrain is required. Historically, the only viable technological solution was roller chain. Despite the having the ability to easily attach blades, roller chain is characterized by significant drawbacks, including high cost, wear, and vibration from chordal action. Advanced carbon-#12;fiber-reinforced timing belts have been recently developed which, coupled with a novel belt attachment system developed by Natel Energy, result in a large reduction in moving parts, reduced mass and cost, and elimination of chordal action for increased fatigue life. The work done in this project affirmatively addressed each of the following 3 major uncertainties concerning a timing-belt based hydroEngine ?powertrain: 1. Can a belt handle the high torques and power loads demanded by the SLH? (Yes.) 2. Can the SLH blades be mounted to belt with a connection that can withstand the loads encountered in operation? (Yes.) 3. Can the belt, with blade attachments, live through the required cyclic loading? (Yes.) The research adds to the general understanding of sustainable small hydropower systems by using innovative system testing to develop and demonstrate performance of a novel powertrain solution, enabling a new type of hydroelectric turbine to be commercially developed. The technical effectiveness of the methods investigated has been shown to be positive through an extensive design and testing process accommodating many constraints and goals, with a major emphasis on high cycle fatigue life. Economic feasibility of the innovations has been demonstrated through many iterations of design for manufacturability and cost reduction. The project is of benefit to the public because it has helped to develop a solution to a major problem -- despite the large available potential for new low-head hydropower, high capital costs and high levelized cost of electricity (LCOE) continue to be major barriers to project development. The hydroEngine? represents a significant innovation, leveraging novel fluid mechanics and mechanical configuration to allow lower-cost turbine manufacture and development of low head hydropower resources.

  15. IR Kuiper Belt Constraints

    E-Print Network [OSTI]

    Teplitz, V L; Anderson, J D; Rosenbaum, D C; Scalise, R J; Wentzler, P; Teplitz, Vigdor L.; Anderson, John D.; Rosenbaum, Doris; Scalise, Randall J.; Wentzler, Paul

    1999-01-01T23:59:59.000Z

    We compute the temperature and IR signal of particles of radius $a$ and albedo $\\alpha$ at heliocentric distance $R$, taking into account the emissivity effect, and give an interpolating formula for the result. We compare with analyses of COBE DIRBE data by others (including recent detection of the cosmic IR background) for various values of heliocentric distance, $R$, particle radius, $a$, and particle albedo, $\\alpha$. We then apply these results to a recently-developed picture of the Kuiper belt as a two-sector disk with a nearby, low-density sector (40belt IR spectra for various parameter v...

  16. Morphotectonics of the central Muertos thrust belt and Muertos Trough (northeastern Caribbean)

    E-Print Network [OSTI]

    ten Brink, Uri S.

    of the ongoing east­west differential motion between the Hispaniola and the Puerto Rico­Virgin Islands blocks on the north slope of the islands of Hispaniola and Puerto Rico (e.g., Larue and Ryan, 1998; Dolan et al., 1998

  17. Evolution and dynamics of a fold-thrust belt: the Sulaiman Range of Pakistan

    E-Print Network [OSTI]

    Reynolds, Kirsty; Copley, Alex; Hussain, Ekbal

    2015-03-09T23:59:59.000Z

    earthquakes (Szeliga et al. 2009) (solid yellow circles on Fig. 3a). The mechanism of the 1931 Sharigh event is not known (Quittmeyer & Jacob 1979). Remeasurement of a levelling line, together with structural interpretation of seismic reflection data suggests... that the seismic deformation in the range is concentrated in the thick pile of sediments overlying the underthrusting lithosphere of the Indian subcontinent. The slip vectors of the earthquakes vary in strike around the margin of the range, in tandem with the shape...

  18. Late Cretaceous extension in the hinterland of the Sevier thrust belt,

    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 Geothermal Pwer Plant Jump to:Landowners and Wind Energy Development JumpLars EnviroLatah County,

  19. 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...

  20. The evolution and hydrocarbon habitat of the Papuan fold belt, PNG

    SciTech Connect (OSTI)

    Dalton, D.G.; Smith, R.I.; Cawley, S.J. (BP Australia Ltd., Melbourne, Victoria (Australia))

    1990-05-01T23:59:59.000Z

    After over 70 years of hydrocarbon exploration in the Papuan fold belt of PNG (Papua New Guinea) there have been a number of hydrocarbon discoveries over recent years that have confirmed its potential as a significant producing province. The Papuan basin developed during the early Mesozoic as part of the northeast corner of the Australian passive margin. The basin's tertiary evolution and the development of the Papuan fold belt within the Papuan basin has evolved in response to oblique convergence between the northerly moving Australian plate and westerly moving Pacific plate. Restacking of the Mesozoic passive margin sequence within the Papuan Basin was initiated in the early miocene by southward abduction of the Solomon Sea plate and the subsequent collision, in the late Miocene, of the Melanesian Island arc along the northeastern margin of PNG. This later collision provided the driving mechanism for the development of the papuan thrust belt. To date, all the significant hydrocarbon discoveries made within the Papuan fold belt have been located within the frontal zone of the fold belt, which is characterized by relatively simple ramp anticlines and thick-skinned inversion structures. The primary proven reservoir fairway is the Jurassic Toro formation, which is a sequence of stacked submarine bars prograding out across a shallow-marine low-gradient shelf. Geochemical analysis of produced hydrocarbons and samples collected from the many surface seeps found in the fold belt indicate two main families of oil. A model explains the distribution of hydrocarbons discovered to date, which involves Jurassic and Cretaceous source intervals and a complex history of secondary migration and entrapment. The unique technical problems associated with exploration of the Papuan fold belt leave many elements of the proven play systems uncertain, but in so doing, they present many challenges and opportunities for the future.

  1. LANSCE | Lujan Center | Thrust Area | Local Structure, Magnetism...

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

    Thrust Area Local Structure, Magnetism, and Nanomaterials The Lujan Neutron Scattering Center encompasses a set of powder diffractometers, instrument scientist specialists, and...

  2. Synchronous and Cogged Fan Belt Performance Assessment

    SciTech Connect (OSTI)

    Cutler, D.; Dean, J.; Acosta, J.

    2014-02-01T23:59:59.000Z

    The GSA Regional GPG Team commissioned the National Renewable Energy Laboratory (NREL) to perform monitoring of cogged V-belts and synchronous belts on both a constant volume and a variable air volume fan at the Byron G. Rodgers Federal Building and U.S. Courthouse in Denver, Colorado. These motor/fan combinations were tested with their original, standard V-belts (appropriately tensioned by an operation and maintenance professional) to obtain a baseline for standard operation. They were then switched to the cogged V-belts, and finally to synchronous belts. The power consumption by the motor was normalized for both fan speed and air density changes. This was necessary to ensure that the power readings were not influenced by a change in rotational fan speed or by the power required to push denser air. Finally, energy savings and operation and maintenance savings were compiled into an economic life-cycle cost analysis of the different belt options.

  3. 1. THE RADIATION BELTS The outer zone radiation belts consist of energetic elec-

    E-Print Network [OSTI]

    Elkington, Scot R.

    1. THE RADIATION BELTS The outer zone radiation belts consist of energetic elec- trons trapped in the geomagnetic field. The dynamics of the belts are dictated by the global and local electric and mag- netic electrons in the outer zone and electric and magnetic field variations occurring on ULF time scales

  4. Middle Paleozoic convergent orogenic belts in western Inner Mongolia (China)

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Middle Paleozoic convergent orogenic belts in western Inner Mongolia (China): framework, kinematics recognized in western Inner Mongolia (China), including, from south to north: North China Craton (NCC), Southern Orogenic Belt (SOB), Hunshandake Block (HB), Northern Orogenic Belt (NOB), South Mongolia

  5. Electronics Engineering Department Thrust Area report FY'84

    SciTech Connect (OSTI)

    Minichino, C.; Phelps, P.L. (eds.)

    1984-01-01T23:59:59.000Z

    This report describes the work of the Electronics Engineering Department Thrust Areas for FY'84: diagnostics and microelectronic engineering; signal and control engineering; microwave and pulsed power engineering; computer-aided engineering; engineering modeling and simulation; and systems engineering. For each Thrust Area, an overview and a description of the goals and achievements of each project is provided.

  6. Conditions during syntectonic vein formation in the footwall of the Absaroka thrust fault of the Idaho-Wyoming-Utah fold and thrust belt

    E-Print Network [OSTI]

    Lambert, George Randall

    1993-01-01T23:59:59.000Z

    the calcite strain gauge technique of Groshong (1972, 1974). 14 Scatter plot of all measured homogenization (Th) and melting temperature (Tm) pairs. . 30 15 P-T diagram used to calculate inclusion entrapment temperatures. . . . . . 31 16 The equilibrium... types of equations of state for the chemical system under scrutiny. Variables associated with a typical equation of state include the measured Th, the measured Tm and a computed fluid density. The microcomputer program FLINCOR (Brown, 1989) was used...

  7. Creating Artificial Radiation Belts in the Lab

    E-Print Network [OSTI]

    Mauel, Michael E.

    Current: Trapped, High- Protons (15-250 keV) Greatly intensified during geomagnetic storms Ti ~ 7Te Jeff #12;Outline The Earth's radiation belts and ring current Fast-electron interchange instability to measure the artificial radiation belt produced by the Argus explosions (1958). (Explosions continued

  8. Electric filter with movable belt electrode

    DOE Patents [OSTI]

    Bergman, W.

    1983-09-20T23:59:59.000Z

    A method and apparatus for removing airborne contaminants entrained in a gas or airstream includes an electric filter characterized by a movable endless belt electrode, a grounded electrode, and a filter medium sandwiched there between. Inclusion of the movable, endless belt electrode provides the driving force for advancing the filter medium through the filter, and reduces frictional drag on the filter medium, thereby permitting a wide choice of filter medium materials. Additionally, the belt electrode includes a plurality of pleats in order to provide maximum surface area on which to collect airborne contaminants. 4 figs.

  9. Computational analysis of spiral groove thrust bearings and face seals

    E-Print Network [OSTI]

    Zirkelback, Nicole Lisa

    1997-01-01T23:59:59.000Z

    Analyses for incompressible and compressible spiral groove thrust bearings (SGTBS) and face seals (SGFSS) are presented. A successive approximation linearizes the partial differential equation of pressure that arises in the compressible fluid...

  10. Peak thrust operation of linear induction machines from parameter identification

    SciTech Connect (OSTI)

    Zhang, Z.; Eastham, T.R.; Dawson, G.E. [Queen`s Univ., Kingston, Ontario (Canada). Dept. of Electrical and Computer Engineering

    1995-12-31T23:59:59.000Z

    Various control strategies are being used to achieve high performance operation of linear drives. To maintain minimum volume and weight of the power supply unit on board the transportation vehicle, peak thrust per unit current operation is a desirable objective. True peak thrust per unit current through slip control is difficult to achieve because the parameters of linear induction machines vary during normal operation. This paper first develops a peak thrust per unit current control law based on the per-phase equivalent circuit for linear induction machines. The algorithm for identification of the variable parameters in induction machines is then presented. Application to an operational linear induction machine (LIM) demonstrates the utility of this algorithm. The control strategy is then simulated, based on an operational transit LIM, to show the capability of achieving true peak thrust operation for linear induction machines.

  11. Thrust Network Analysis : exploring three-dimensional equilibrium

    E-Print Network [OSTI]

    Block, Philippe (Philippe Camille Vincent)

    2009-01-01T23:59:59.000Z

    This dissertation presents Thrust Network Analysis, a new methodology for generating compression-only vaulted surfaces and networks. The method finds possible funicular solutions under gravitational loading within a defined ...

  12. Design of high temperature high speed electromagnetic axial thrust bearing

    E-Print Network [OSTI]

    Mohiuddin, Mohammad Waqar

    2002-01-01T23:59:59.000Z

    DESIGN OF HIGH TEMPERATURE HIGH SPEED ELECTROMAGNETIC AXIAL THRUST BEARING A Thesis by MOHAMMAD WAQAR MOHIUDDIN 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 December 2002 Major Subject: Mechanical Engineering DESIGN OF HIGH TEMPERATURE HIGH SPEED ELECTROMAGNETIC AXIAL THRUST BEARING A Thesis by MOHAMMAD WAQAR MOHIUDDIN Submitted to Texas A&M University in partial fulfillment...

  13. Seat Belt Use Policy Outline the policy regarding use of seat belt in University of Michigan (U-M) vehicles.

    E-Print Network [OSTI]

    Kirschner, Denise

    Seat Belt Use Policy Objective Outline the policy regarding use of seat belt in University of Michigan (U-M) vehicles. Vehicle Use Policy 1. Staff members are responsible to operate U-M vehicles are adhering to the seat belt use laws when operating a U-M vehicle. 3. State of Michigan seat belt laws

  14. A study of binary Kuiper Belt objects

    E-Print Network [OSTI]

    Kern, Susan Diane

    2006-01-01T23:59:59.000Z

    About 105 bodies larger than 100km in diameter (Jewitt 1998) reside in the Kuiper Belt, beyond the orbit of Neptune. Since 1992 observational surveys have discovered over one thousand of these objects, believed to be fossil ...

  15. Well drilling tool with diamond radial/thrust bearings

    SciTech Connect (OSTI)

    Nagel, D.D.; Aparicio, T. Jr.

    1983-10-18T23:59:59.000Z

    A turbodrill is disclosed for connection to a drill string and has a rotating shaft for turning a drill bit. The turbodrill has rotor and stator blades operated by drilling mud flowing therethrough to rotate the shaft. The shaft is provided with radial/thrust bearing consisting of a pair of annular plates, each of which has conical surfaces supporting a plurality of friction bearing members of polycrystalline diamond. The radial and thrust loads are carried by the wear-resistant diamond bearing surfaces. The bearing members are preferably cylindrical studs having flat faces with flat disc-shaped diamond bearing members supported thereon around the adjacent surfaces of the supporting plates. The faces of the diamond bearings will wear into smoothly mating conical bearing surfaces with use. There are two or more pairs of diamond radial/thrust bearings to handle longitudinal as well as radial loads. The use of the diamond radial/thrust bearings makes it possible to eliminate the lubricant-flooded construction of prior art turbodrills and allow the bearings to be cooled and lubricated be drilling fluid flowing therethrough. The diamond radial/thrust bearings may be used with lubricant-flooded turbodrills and with other types of downhole motor driven drills such as drills driven by positive displacement motors.

  16. Separability of drag and thrust in undulatory animals and machines

    E-Print Network [OSTI]

    Bale, Rahul; Neveln, Izaak D; Bhalla, Amneet Pal Singh; MacIver, Malcolm A; Patankar, Neelesh A

    2014-01-01T23:59:59.000Z

    For nearly a century, researchers have tried to understand the swimming of aquatic animals in terms of a balance between the forward thrust from swimming movements and drag on the body. Prior approaches have failed to provide a separation of these two forces for undulatory swimmers such as lamprey and eels, where most parts of the body are simultaneously generating drag and thrust. We nonetheless show that this separation is possible, and delineate its fundamental basis in undulatory swimmers. Our approach unifies a vast diversity of undulatory aquatic animals (anguilliform, sub-carangiform, gymnotiform, bal- istiform, rajiform) and provides design principles for highly agile bioinspired underwater vehicles. This approach has practical utility within biology as well as engineering. It is a predictive tool for use in understanding the role of the mechanics of movement in the evolutionary emergence of morphological features relating to locomotion. For example, we demonstrate that the drag-thrust separation fram...

  17. Problems of millipound thrust measurement. The "Hansen Suspension"

    SciTech Connect (OSTI)

    Carta, David G.

    2014-03-31T23:59:59.000Z

    Considered in detail are problems which led to the need and use of the 'Hansen Suspension'. Also discussed are problems which are likely to be encountered in any low level thrust measuring system. The methods of calibration and the accuracies involved are given careful attention. With all parameters optimized and calibration techniques perfected, the system was found capable of a resolution of 10 {mu} lbs. A comparison of thrust measurements made by the 'Hansen Suspension' with measurements of a less sophisticated device leads to some surprising results.

  18. ORIGINAL PAPER Granite magma migration and emplacement along thrusts

    E-Print Network [OSTI]

    Galland, Olivier

    ORIGINAL PAPER Granite magma migration and emplacement along thrusts Eric C. Ferre´ · Olivier in the emplacement of granite plutons in contractional settings. We address both cases where contractional tectonics. This phenomenon occurs for both low-viscosity magma (basalts to andesite) and high-viscosity magma (dry granite

  19. Engineering Research, Development and Technology, FY95: Thrust area report

    SciTech Connect (OSTI)

    NONE

    1996-02-01T23:59:59.000Z

    The mission of the Engineering Research, Development, and Technology Program at Lawrence Livermore National Laboratory (LLNL) is to develop the knowledge base, process technologies, specialized equipment, tools and facilities to support current and future LLNL programs. Engineering`s efforts are guided by a strategy that results in dual benefit: first, in support of Department of Energy missions, such as national security through nuclear deterrence; and second, in enhancing the nation`s economic competitiveness through their collaboration with US industry in pursuit of the most cost-effective engineering solutions to LLNL programs. To accomplish this mission, the Engineering Research, Development, and Technology Program has two important goals: (1) identify key technologies relevant to LLNL programs where they can establish unique competencies, and (2) conduct high-quality research and development to enhance their capabilities and establish themselves as the world leaders in these technologies. To focus Engineering`s efforts, technology thrust areas are identified and technical leaders are selected for each area. The thrust areas are comprised of integrated engineering activities, staffed by personnel from the nine electronics and mechanical engineering divisions, and from other LLNL organizations. This annual report, organized by thrust area, describes Engineering`s activities for fiscal year 1995. The report provides timely summaries of objectives methods, and key results from eight thrust areas: computational electronics and electromagnetics; computational mechanics; microtechnology; manufacturing technology; materials science and engineering; power conversion technologies; nondestructive evaluation; and information engineering.

  20. Conceptual design of a thrust-vectoring tailcone for underwater robotics

    E-Print Network [OSTI]

    Nawrot, Michael T

    2012-01-01T23:59:59.000Z

    Thrust-vectoring on Autonomous Underwater Vehicles is an appealing directional-control solution because it improves turning radius capabilities. Unfortunately, thrust-vectoring requires the entire propulsion system be ...

  1. Design and characterization of a nano-Newton resolution thrust stand J. Soni and S. Roy

    E-Print Network [OSTI]

    Roy, Subrata

    Design and characterization of a nano-Newton resolution thrust stand J. Soni and S. Roy Citation-Newton resolution thrust stand J. Soni and S. Roya) Applied Physics Research Group, University of Florida

  2. active basement-involved thrust: Topics by E-print Network

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

    the thrust bearing, Hyperco 27 and AISI 4340. And for the shaft Inconel 718 was chosen. A handbook approach is made in chapter IV, to find the stresses developed in the thrust disk...

  3. Six Sigma Black Belts Fight For Quality

    E-Print Network [OSTI]

    Vardeman, Stephen B.

    Six Sigma Black Belts Fight For Quality Ron Scott Ross Finnestad Rodney Kalsow IE 361 mini-paper 9/22/00 #12;Six Sigma is a breakthrough management strategy that is revolutionizing the world's top corporations. So what is Six Sigma? "It is a business process that allows companies to drastically improve

  4. Impacts of Minnesota's Primary Seat Belt Law

    E-Print Network [OSTI]

    Minnesota, University of

    for Excellence in Rural Safety Humphrey School of Public Affairs #12;CERS's "Safe Six Regardless of Residence Urban/Small City Suburban Rural/Small Town Primary Seat; . . AND IN MINNESOTA #12;Predicted Impact 2009 and 2010 CERS Reports: Primary Seat Belt Laws

  5. Thrust Area Report, Engineering Research, Development and Technology

    SciTech Connect (OSTI)

    Langland, R. T.

    1997-02-01T23:59:59.000Z

    The mission of the Engineering Research, Development, and Technology Program at Lawrence Livermore National Laboratory (LLNL) is to develop the knowledge base, process technologies, specialized equipment, tools and facilities to support current and future LLNL programs. Engineering`s efforts are guided by a strategy that results in dual benefit: first, in support of Department of Energy missions, such as national security through nuclear deterrence; and second, in enhancing the nation`s economic competitiveness through our collaboration with U.S. industry in pursuit of the most cost- effective engineering solutions to LLNL programs. To accomplish this mission, the Engineering Research, Development, and Technology Program has two important goals: (1) identify key technologies relevant to LLNL programs where we can establish unique competencies, and (2) conduct high-quality research and development to enhance our capabilities and establish ourselves as the world leaders in these technologies. To focus Engineering`s efforts technology {ital thrust areas} are identified and technical leaders are selected for each area. The thrust areas are comprised of integrated engineering activities, staffed by personnel from the nine electronics and mechanical engineering divisions, and from other LLNL organizations. This annual report, organized by thrust area, describes Engineering`s activities for fiscal year 1996. The report provides timely summaries of objectives, methods, and key results from eight thrust areas: Computational Electronics and Electromagnetics; Computational Mechanics; Microtechnology; Manufacturing Technology; Materials Science and Engineering; Power Conversion Technologies; Nondestructive Evaluation; and Information Engineering. Readers desiring more information are encouraged to contact the individual thrust area leaders or authors. 198 refs., 206 figs., 16 tabs.

  6. Characterization of the Muddy Mountain-Keystone thrust contact and related deformation

    E-Print Network [OSTI]

    Brock, William Gene

    1973-01-01T23:59:59.000Z

    and Red Rock Canyon the thrust has moved over an erosional surface on the Aztec Sandstone in which forethrust debris (composed of clasts from the upper and lower plates deposited in front of the advancing thrust as outwash and channel deposits) fills... topographic lowe. Thrust-related deformation in the lower plate (Aztec Sandstone or forethrust debris) is evaluated by macroscopic and microscopic analyses and the fol- lowing trends are noticed as the thrust contact is approached: (1) an increase...

  7. Recently discovered overthrusting northeast of Llano uplift along extension of San Marcos platform: new exploration frontier in central Texas

    SciTech Connect (OSTI)

    McMurdie, D.S.; Bryan, J.G.; Gibson, M.; King, T.; Sill, W.

    1986-05-01T23:59:59.000Z

    TJB Resources recently completed gravity, magnetotelluric, and seismic geophysical surveys in San Saba and Mills Counties north of the Llano uplift, west of the Ouachita Disturbed belt. Significant results show overthrusting has occurred 60-70 mi west of the Ouachita Disturbed belt. Earliest thrusting could have occurred in the Silurian-Devonian from south or southeast. Faulting reoccurs during Pennsylvanian Ouachita thrusting and again in the Late Cretaceous. The primitive Llano uplift buttressed the allochthonous rocks moving north and west. Magnetotelluric and gravity data indicate the Llano uplift is a separate and distinct isolated remnant or terrain, with numerous igneous intrusions reaching to great depths. Associated with this thrusting is a major tectonic northwest-southeast lineament located parallel to the termination of the Cretaceous rocks, outcropping on the western edge of Mills and Lampasas Counties. This lineament is documented by east-west seismic lines displaying a 0.3-sec displacement and farther southwest a 1.1-sec displacement. Paleozoic fossils were found near the surface trace of the northwest-southwest lineament as observed on the east-west seismic line. This area was previously mapped as Cretaceous. Surface inspection found Paleozoic rocks containing crinoids, spirifers, and rugose corals, with beds dipping to 45/sup 0/, contrasted with the N2/sup 0/ regional dip surrounding the lineament area. Well-log correlations from Marble Falls to Ellenberger range from 350 to 600 ft from east to west near the Llano uplift. The 60 to 70-mi frontal edge of the thrusting provides potential hydrocarbon traps along a north to northeast trend from central Texas to Oklahoma.

  8. Engineering research, development and technology. Thrust area report, FY93

    SciTech Connect (OSTI)

    Not Available

    1994-05-01T23:59:59.000Z

    The mission of the Engineering Research, Development, and Technology Program at Lawrence Livermore National Laboratory (LLNL) is to develop the technical staff, tools, and facilities needed to support current and future LLNL programs. The efforts are guided by a dual-benefit research and development strategy that supports Department of Energy missions, such as national security through nuclear deterrence and economic competitiveness through partnerships with U.S. industry. This annual report, organized by thrust area, describes the activities for the fiscal year 1993. The report provides timely summaries of objectives, methods, and results from nine thrust areas for this fiscal year: Computational Electronics and Electromagnetics; Computational Mechanics; Diagnostics and Microelectronics; Fabrication Technology; Materials Science and Engineering; Power Conversion Technologies; Nondestructive Evaluation; Remote Sensing, Imaging, and Signal Engineering; and Emerging Technologies. Separate abstracts were prepared for 47 papers in this report.

  9. Population of the Scattered Kuiper Belt

    E-Print Network [OSTI]

    C. A. Trujillo; D. C. Jewitt; J. X. Luu

    1999-12-20T23:59:59.000Z

    We present the discovery of three new Scattered Kuiper Belt Objects (SKBOs) from a wide-field survey of the ecliptic. This continuing survey has to date covered 20.2 square degrees to a limiting red magnitude of 23.6. We combine the data from this new survey with an existing survey conducted at the University of Hawaii 2.2m telescope to constrain the number and mass of the SKBOs. The SKBOs are characterized by large eccentricities, perihelia near 35 AU, and semi-major axes > 50 AU. Using a maximum-likelihood model, we estimate the total number of SKBOs larger than 100 km in diameter to be N = 3.1 (+1.9/-1.3) x 10^4 (1 sigma) and the total mass of SKBOs to be about 0.05 Earth masses, demonstrating that the SKBOs are similar in number and mass to the Kuiper Belt inside 50 AU.

  10. rf power system for thrust measurements of a helicon plasma source Alexander W. Kieckhafer and Mitchell L. R. Walker

    E-Print Network [OSTI]

    Walker, Mitchell

    rf power system for thrust measurements of a helicon plasma source Alexander W. Kieckhafer measurement stand and showed that rf power has no statistically significant contribution to the thrust stand now, a true thrust diagnostic that can measure thrust of a rf device does not exist. A helicon plasma

  11. Replace V-Belts with Notched or Synchronous Belt Drives | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 < prevQuickEnergy V-Belts with Notched or Synchronous Belt

  12. Corn Belt Energy Corporation- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Corn Belt Energy Corporation (CBEC), in association with the Wabash Valley Power Association, provides its customers with the "Power Moves" energy efficiency rebate program. Through this program,...

  13. Geologic Setting of the Central Alaskan Hot Springs Belt: Implications...

    Open Energy Info (EERE)

    Sustainable Energy Production Jump to: navigation, search OpenEI Reference LibraryAdd to library Thesis: Geologic Setting of the Central Alaskan Hot Springs Belt: Implications for...

  14. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

    DOE Patents [OSTI]

    Barclay, John A. (Madison, WI); Stewart, Walter F. (Marshall, WI); Henke, Michael D. (Los Alamos, NM); Kalash, Kenneth E. (Los Alamos, NM)

    1987-01-01T23:59:59.000Z

    A magnetic refrigerator operating in the 12 to 77K range utilizes a belt which carries ferromagnetic or paramagnetic material and which is disposed in a loop which passes through the center of a solenoidal magnet to achieve cooling. The magnetic material carried by the belt, which can be blocks in frames of a linked belt, can be a mixture of substances with different Curie temperatures arranged such that the Curie temperatures progressively increase from one edge of the belt to the other. This magnetic refrigerator can be used to cool and liquefy hydrogen or other fluids.

  15. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

    DOE Patents [OSTI]

    Barclay, J.A.; Stewart, W.F.; Henke, M.D.; Kalash, K.E.

    1986-04-03T23:59:59.000Z

    A magnetic refrigerator operating in the 12 to 77 K range utilizes a belt which carries ferromagnetic or paramagnetic material and which is disposed in a loop which passes through the center of a solenoidal magnet to achieve cooling. The magnetic material carried by the belt, which can be blocks in frames of a linked belt, can be a mixture of substances with different Curie temperatures arranged such that the Curie temperatures progressively increase from one edge of the belt to the other. This magnetic refrigerator can be used to cool and liquefy hydrogen or other fluids.

  16. Oak Ridge fault, Ventura fold belt, and the Sisar decollement, Ventura basin, California

    SciTech Connect (OSTI)

    Yeats, R.S.; Huftile, G.J.; Grigsby, F.B. (Oregon State Univ. Corvallis (USA))

    1988-12-01T23:59:59.000Z

    The rootless Ventura Avenue, San Miguelito, and Rincon anticlines (Ventura fold belt) in Pliocene -Pleistocene turbidites are fault-propagation folds related to south-dipping reverse faults rising from a decollement in Miocene shale. To the east, the Sulfur Mountain anticlinorium overlies and is cut by the Sisar, Big Canyon, and Lion south-dipping thrusts that merge downward into the Sisar decollement in lower Miocene shale. Shortening of the Miocene and younger sequence is {approximately} 3 km greater than that of underlying competent Paleogens strata in the Ventura fold belt and {approximately} 7 km greater farther east at Sulfur Mountain. Cross-section balancing requires that this difference be taken up by the Paleogene sequence at the Oak Ridge fault to the south. Convergence is northeast to north-northeast on the base of earthquake focal mechanisms, borehole breakouts, and piercing-point offest of the South Mountain seaknoll by the Oak Ridge fault. A northeast-trending line connecting the west end of Oak Ridge and the east end of Sisar fault separates an eastern domain where late Quaternary displacement is taken up entirely on the Oak Ridge fault and a western domain where displacement is transferred to the Sisar decollement and its overlying rootless folds. This implies that (1) the Oak Ridge fault near the coast presents as much seismic risk as it does farther east, despite negligible near-surface late Quaternary movement; (2) ground-rupture hazard is high for the Sisar fault set in the upper Ojai Valley; and (3) the decollement itself could produce an earthquake analogous to the 1987 Whittier Narrows event in Low Angeles.

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

    SciTech Connect (OSTI)

    Simonson, R.R.

    1991-02-01T23:59:59.000Z

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

  18. Corn Belt Power Coop | 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, clickInformationNew|Core Analysis At Geysers| Open EnergyAl.,A,CorixBelt

  19. Direct thrust measurements and modelling of a radio-frequency expanding plasma thruster

    SciTech Connect (OSTI)

    Lafleur, T.; Charles, C.; Boswell, R. W. [Space Plasma, Power and Propulsion Group, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia); Takahashi, K. [Space Plasma, Power and Propulsion Group, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia); Department of Electrical Engineering and Computer Science, Iwate University, Morioka 020-8551 (Japan)

    2011-08-15T23:59:59.000Z

    It is shown analytically that the thrust from a simple plasma thruster (in the absence of a magnetic field) is given by the maximum upstream electron pressure, even if the plasma diverges downstream. Direct thrust measurements of a thruster are then performed using a pendulum thrust balance and a laser displacement sensor. A maximum thrust of about 2 mN is obtained at 700 W for a thruster length of 17.5 cm and a flow rate of 0.9 mg s{sup -1}, while a larger thrust of 4 mN is obtained at a similar power for a length of 9.5 cm and a flow rate of 1.65 mg s{sup -1}. The measured thrusts are in good agreement with the maximum upstream electron pressure found from measurements of the plasma parameters and in fair agreement with a simple global approach used to model the thruster.

  20. WATER ICE IN THE KUIPER BELT

    SciTech Connect (OSTI)

    Brown, M. E.; Fraser, W. C. [Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125 (United States); Schaller, E. L., E-mail: mbrown@caltech.edu [NASA Dryden Aircraft Operations Facility, Palmdale, CA 93550 (United States)

    2012-06-15T23:59:59.000Z

    We examine a large collection of low-resolution near-infrared spectra of Kuiper Belt objects (KBOs) and centaurs in an attempt to understand the presence of water ice in the Kuiper Belt. We find that water ice on the surface of these objects occurs in three separate manners: (1) Haumea family members uniquely show surfaces of nearly pure water ice, presumably a consequence of the fragmentation of the icy mantle of a larger differentiated proto-Haumea; (2) large objects with absolute magnitudes of H < 3 (and a limited number to H = 4.5) have surface coverings of water ice-perhaps mixed with ammonia-that appears to be related to possibly ancient cryovolcanism on these large objects; and (3) smaller KBOs and centaurs which are neither Haumea family members nor cold-classical KBOs appear to divide into two families (which we refer to as 'neutral' and 'red'), each of which is a mixture of a common nearly neutral component and either a slightly red or very red component that also includes water ice. A model suggesting that the difference between neutral and red objects due to formation in an early compact solar system either inside or outside, respectively, of the {approx}20 AU methanol evaporation line is supported by the observation that methanol is only detected on the reddest objects, which are those which would be expected to have the most of the methanol containing mixture.

  1. Large Bodies in the Kuiper Belt

    E-Print Network [OSTI]

    Chadwick A. Trujillo; Jane X. Luu; Amanda S. Bosh; James L. Elliot

    2001-08-27T23:59:59.000Z

    We present a survey for bright Kuiper Belt Objects (KBOs) and Centaurs, conducted at the Kitt Peak National Observatory (KPNO) 0.9 m telescope with the KPNO 8k Mosaic CCD. The survey imaged 164 sq deg near opposition to a limiting red magnitude of 21.1. Three bright KBOs and one Centaur were found, the brightest KBO having red magnitude 19.7, about 700 km in diameter assuming a dark Centaur-like 4% albedo. We estimate the power-law differential size distribution of the Classical KBOs to have index q = 4.2 (+0.4)(-0.3), with the total number of Classical KBOs with diameters larger than 100 km equal to 4.7 (+1.6)(-1.0) x 10^4. Additionally, we find that if there is a maximum object size in the Kuiper Belt, it must be larger than 1000 km in diameter. By extending our model to larger size bodies, we estimate that 30 (+16)(-12) Charon-sized and 3.2 (+2.8)(-1.7) Pluto-sized Classical KBOs remain undiscovered.

  2. Thrust and efficiency model for electron-driven magnetic nozzles

    SciTech Connect (OSTI)

    Little, Justin M.; Choueiri, Edgar Y. [Electric Propulsion and Plasma Dynamics Laboratory, Princeton University, Princeton, New Jersey 08544 (United States)] [Electric Propulsion and Plasma Dynamics Laboratory, Princeton University, Princeton, New Jersey 08544 (United States)

    2013-10-15T23:59:59.000Z

    A performance model is presented for magnetic nozzle plasmas driven by electron thermal expansion to investigate how the thrust coefficient and beam divergence efficiency scale with the incoming plasma flow and magnetic field geometry. Using a transformation from cylindrical to magnetic coordinates, an approximate analytical solution is derived to the axisymmetric two-fluid equations for a collisionless plasma flow along an applied magnetic field. This solution yields an expression for the half-width at half-maximum of the plasma density profile in the far-downstream region, from which simple scaling relations for the thrust coefficient and beam divergence efficiency are derived. It is found that the beam divergence efficiency is most sensitive to the density profile of the flow into the nozzle throat, with the highest efficiencies occurring for plasmas concentrated along the nozzle axis. Increasing the expansion ratio of the magnetic field leads to efficiency improvements that are more pronounced for incoming plasmas that are not concentrated along the axis. This implies that the additional magnet required to increase the expansion ratio may be worth the added complexity for plasma sources that exhibit poor confinement.

  3. Cartesian thrust allocation algorithm with variable direction thrusters, turn rate limits and singularity avoidance

    E-Print Network [OSTI]

    Johansen, Tor Arne

    propellers [5], power consumption optimization [6] and other power management-related issues [7], [8], [9 thrust slowly and/or reverse the direction of the generated thrust, minimizing the power consumption should normally be included. This func- tionality requires significant numerical calculations for each

  4. Middle-late Miocene ( 10 Ma) formation of the Main Boundary thrust in the western Himalaya

    E-Print Network [OSTI]

    Kurapov, Alexander

    Ma in well-dated stratigraphic sections from Pakistan to Nepal across the Indo-Gangetic foreland derived from the hanging wall of the Main Boundary thrust indicates that source-area uplift and denudation thrust in the Kohat region of northwest Pakistan indicate that rapid cooling below 105 C between 8 and 10

  5. Thermal Effects on Inverted Pendulum Thrust Stands for Steady-state High-power Plasma Thrusters

    E-Print Network [OSTI]

    Choueiri, Edgar

    Thermal Effects on Inverted Pendulum Thrust Stands for Steady-state High-power Plasma Thrusters A, 2003 Abstract Thermal effects on direct measurements of the thrust produced by steady-state, high-power. Associate Fellow, AIAA. Presented at the 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 20-23rd

  6. Data Archive and Portal Thrust Area Strategy Report

    SciTech Connect (OSTI)

    Sivaraman, Chitra; Stephan, Eric G.; Macduff, Matt C.; Hagler, Clay D.

    2014-09-30T23:59:59.000Z

    This report describes the Data Archive and Portal (DAP), a key capability of the U.S. Department of Energy's Atmosphere to Electron (A2e) initiative. The DAP Thrust Area Planning Group was organized to develop a plan for deploying this capability. Primarily, the report focuses on a distributed system--a DOE Wind Cloud--that functions as a repository for all A2e data. The Wind Cloud will be accessible via an open, easy-to-navigate user interface that facilitates community data access, interaction, and collaboration. DAP management will work with the community, industry, and international standards bodies to develop standards for wind data and to capture important characteristics of all data in the Wind Cloud.

  7. abitibi greenstone belt: Topics by E-print Network

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

    belt object satellites, again pointing to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A....

  8. altai metallogenic belt: Topics by E-print Network

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

    belt object satellites, again pointing to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A....

  9. Corn Belt Energy Coop- Commercial Energy Efficiency Rebate Program (Illinois)

    Broader source: Energy.gov [DOE]

    Corn Belt Energy, through the Wabash Valley Power Association, offersbusiness, school, and farm customers a variety of energy efficient rebates and incentives through its "Power Moves" program....

  10. VP 100: Brevini Wind Factory Helps Rust Belt Town's Economy ...

    Energy Savers [EERE]

    450 jobs in next two years Faced with a recession and an auto industry that ran out gas, many manufacturing towns in the Rust Belt have reinvented themselves. Some found...

  11. Nanomaterial modifications on conductivity of coal conveyer belt

    SciTech Connect (OSTI)

    Zhang, J.C.; Zhang, Y.G.; Wang, T.T.; Yang, L.F.; Liu, S.M.; Yang, D.H.; Zhang, M.; Gao, X. [Zhongyuan University of Technology, Zhengzhou (China)

    2008-08-15T23:59:59.000Z

    By analyzing the macro electrical properties and the microscopic structure from SEM of nanomaterials modified mine transmission belt samples. The influences of the filling process of inorganic nano particle-filled rubber and PVC polymer on the physical properties of coal transmission belt is reviewed, as well as PTC and NTC effect on the stability of the physical properties and stability of materials. Influence of nano-materials and polymer materials for rubber and temperature changes in the plastic filled refining process. Crosslinker and major filler changes in the amount and filled plastic chain time on the conductivity of coal conveyer belt is studied. Influence of cure temperature. Cure time on the mechanical performance is studied. The microscopic mechanism of macro conductivity change of conveyer belt is discussed.

  12. automatic seat belts: Topics by E-print Network

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

    There is no agreement on the expansion time, which varies from 30 - 100 Myr. The inclination of the Gould belt is not explained by the above models of expansion. An oblique...

  13. allen radiation belt: Topics by E-print Network

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

    particles. Hudson, H S; Frewen, S F N; DeRosa, M L 2009-01-01 7 Drivers, Detection, and Impacts of Precipitation from the Radiation Belts C. J. Rodger1 Physics Websites Summary:...

  14. Deformation associated with transverse-thrust ramps: a field and experimental study

    E-Print Network [OSTI]

    McCaskey, Michael Donald

    1982-01-01T23:59:59.000Z

    direction. 2. Marias Pass Location Maps. (A) Generalized geologic map showing location of Marias Pass, and the Lewis Thrust, and (B) schematic diagram illustrates ramp geometries for the Lewis Thrust in the Marias Pass region. 3. Geometry of dip ramp... of Marias Pass showing the location of study sites A, 8, C, and the dip-ramp site at Two Medicine Lake . 85 24. Contour map of the Lewis Thrust surface in the Marias Pass area constructed from sur- vey sites (measured in feet above sea level in order...

  15. Deformation associated with transverse-thrust ramps: a field and experimental study

    E-Print Network [OSTI]

    McCaskey, Michael Donald

    1982-01-01T23:59:59.000Z

    direction. 2. Marias Pass Location Maps. (A) Generalized geologic map showing location of Marias Pass, and the Lewis Thrust, and (B) schematic diagram illustrates ramp geometries for the Lewis Thrust in the Marias Pass region. 3. Geometry of dip ramp... of Marias Pass showing the location of study sites A, 8, C, and the dip-ramp site at Two Medicine Lake . 85 24. Contour map of the Lewis Thrust surface in the Marias Pass area constructed from sur- vey sites (measured in feet above sea level in order...

  16. 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...

  17. A comparison of eddy current effects in a single sided magnetic thrust bearing

    E-Print Network [OSTI]

    DeWeese, Randall Thomas

    1996-01-01T23:59:59.000Z

    finite element studies of magnetic thrust bearings using static bench testing procedures to investigate configurations that promote eddy current reduction. Several rotor/stator configurations, including solid metal, laminated washers, tapewound lam...

  18. Power Rental Market to Receive Thrust from Asia-Pacific, to Rise...

    Open Energy Info (EERE)

    Thrust from Asia-Pacific, to Rise to US20.64 billion by 2019 Home > Groups > Increase Natural Gas Energy Efficiency John55364's picture Submitted by John55364(95) Contributor...

  19. Test-Theory Correlation Study for an Ultra High Temperature Thrust Magnetic Bearing

    E-Print Network [OSTI]

    Desireddy, Vijesh R.

    2010-01-14T23:59:59.000Z

    Magnetic bearings have been researched by the National Aeronautics and Space Administration (NASA) for a very long time to be used in wide applications. This research was to assemble and test an axial thrust electromagnetic bearing, which can handle...

  20. Structural discordance between neogene detachments and frontal sevier thrusts, central Mormon Mountains, southern Nevada

    E-Print Network [OSTI]

    Wernicke, Brian; Walker, J. Douglas; Beaufait, Mark S.

    1985-02-01T23:59:59.000Z

    Bonanza King Formation. Between the Keystone-Muddy Mountain and Gass Peak-Wheeler Pass thrusts is a broad, regional synclinorium consisting of miogeoclinal rocks which have been folded and faulted on small thrusts. N W E s Fig. 6. Axes...-groned, thin-to rneclum- bedded chert), toward top fossaliferous, locally cross-laminated SULTAN LIMESTONE (216 m) CRYSTAL PASS LIMESTONE (69m) Lrnestone, hght c, lroy, ophonit, laminated sandstone marker bedneer top VALENTINE LIMESTONE (79m) Lm...

  1. 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...

  2. JOVIAN EARLY BOMBARDMENT: PLANETESIMAL EROSION IN THE INNER ASTEROID BELT

    SciTech Connect (OSTI)

    Turrini, D.; Coradini, A.; Magni, G., E-mail: diego.turrini@ifsi-roma.inaf.it [Istituto di Astrofisica e Planetologia Spaziali, INAF-IAPS, Via Fosso del Cavaliere 100, 00133, Rome (Italy)

    2012-05-01T23:59:59.000Z

    The asteroid belt is an open window on the history of the solar system, as it preserves records of both its formation process and its secular evolution. The progenitors of the present-day asteroids formed in the Solar Nebula almost contemporary to the giant planets. The actual process producing the first generation of asteroids is uncertain, strongly depending on the physical characteristics of the Solar Nebula, and the different scenarios produce very diverse initial size-frequency distributions (SFDs). In this work, we investigate the implications of the formation of Jupiter, plausibly the first giant planet to form, on the evolution of the primordial asteroid belt. The formation of Jupiter triggered a short but intense period of primordial bombardment, previously unaccounted for, which caused an early phase of enhanced collisional evolution in the asteroid belt. Our results indicate that this Jovian Early Bombardment caused the erosion or the disruption of bodies smaller than a threshold size, which strongly depends on the SFD of the primordial planetesimals. If the asteroid belt was dominated by planetesimals less than 100 km in diameter, the primordial bombardment would have caused the erosion of bodies smaller than 200 km in diameter. If the asteroid belt was instead dominated by larger planetesimals, the bombardment would have resulted in the destruction of bodies as big as 500 km.

  3. Angle stations in or for endless conveyor belts

    DOE Patents [OSTI]

    Steel, Alan (Glasgow, GB6)

    1987-04-07T23:59:59.000Z

    In an angle station for an endless conveyor belt, there are presented to each incoming run of the belt stationary curved guide members (18, 19) of the shape of a major segment of a right-circular cylinder and having in the part-cylindrical portion (16 or 17) thereof rectangular openings (15) arranged in parallel and helical paths and through which project small freely-rotatable rollers (14), the continuously-changing segments of the curved surfaces of which projecting through said openings (15) are in attitude to change the direction of travel of the belt (13) through 90.degree. during passage of the belt about the part-cylindrical portion (16 or 17) of the guide member (18 or 19). The rectangular openings (15) are arranged with their longer edges lengthwise of the diagonals representing the mean of the helix but with those of a plurality of the rows nearest to each end of the part-cylindrical portion (16 or 17) slightly out of axial symmetry with said diagonals, being slightly inclined in a direction about the intersections (40) of the diagonals of the main portion of the openings, to provide a "toe-in" attitude in relation to the line of run of the endless conveyor belt.

  4. Structural Geology of a Central Segment of the Qilian Shan-Nan Shan Thrust Belt: Implications for the Magnitude of Cenozoic Shortening in the Northeastern Tibetan Plateau

    E-Print Network [OSTI]

    Reith, Robin

    2013-01-01T23:59:59.000Z

    Dong from the Institute of Geomechanics, Chinese Academy ofmethods at the Institute of Geomechanics, Chinese Academy of

  5. Structural Geology of a Central Segment of the Qilian Shan-Nan Shan Thrust Belt: Implications for the Magnitude of Cenozoic Shortening in the Northeastern Tibetan Plateau

    E-Print Network [OSTI]

    Reith, Robin

    2013-01-01T23:59:59.000Z

    characterization of the Gangcha complex in the West Qinling terrane, central China: Journal of the Geological

  6. Structural Geology of a Central Segment of the Qilian Shan-Nan Shan Thrust Belt: Implications for the Magnitude of Cenozoic Shortening in the Northeastern Tibetan Plateau

    E-Print Network [OSTI]

    Reith, Robin

    2013-01-01T23:59:59.000Z

    continental deformation: Geology, Burchfiel, B.C. , Zhang,by lower crustal flow: Geology, 28: 703-706. Cowgill, E. ,in north Qilian: Gansu Geology, 20: 40-44 (in Chinese with

  7. Modeling the radiation belt electrons with radial diffusion driven by the solar wind

    E-Print Network [OSTI]

    Li, Xinlin

    in the enhancement of radiation belt electrons yet leaves a significant portion of the variance unaccounted for. We

  8. Are energetic electrons in the solar wind the source of the outer radiation belt?

    E-Print Network [OSTI]

    Li, Xinlin

    Are energetic electrons in the solar wind the source of the outer radiation belt? Xinlin Li,1 D. N in the solar wind are the source of the outer rela- tivistic electron radiation belt. Though there is some radiation belt, the phase space density of 20-200 keV electrons in the solar wind is not adequate to supply

  9. Radiation Belt Activity Indices and Solar Proton Event Alarm on the CRATERRE Project Web Site

    E-Print Network [OSTI]

    Radiation Belt Activity Indices and Solar Proton Event Alarm on the CRATERRE Project Web Site D--Two Radiation Belt Activity Indices, based on electron flux measurement >300 keV and >1.6 MeV, and one Solar updated. Index Terms- CRATERRE project, Radiation belts activity, Space environment I. INTRODUCTION

  10. Engineering Research and Development and Technology thrust area report FY92

    SciTech Connect (OSTI)

    Langland, R.T.; Minichino, C. [eds.

    1993-03-01T23:59:59.000Z

    The mission of the Engineering Research, Development, and Technology Program at Lawrence Livermore National Laboratory (LLNL) is to develop the technical staff and the technology needed to support current and future LLNL programs. To accomplish this mission, the Engineering Research, Development, and Technology Program has two important goals: (1) to identify key technologies and (2) to conduct high-quality work to enhance our capabilities in these key technologies. To help focus our efforts, we identify technology thrust areas and select technical leaders for each area. The thrust areas are integrated engineering activities and, rather than being based on individual disciplines, they are staffed by personnel from Electronics Engineering, Mechanical Engineering, and other LLNL organizations, as appropriate. The thrust area leaders are expected to establish strong links to LLNL program leaders and to industry; to use outside and inside experts to review the quality and direction of the work; to use university contacts to supplement and complement their efforts; and to be certain that we are not duplicating the work of others. This annual report, organized by thrust area, describes activities conducted within the Program for the fiscal year 1992. Its intent is to provide timely summaries of objectives, theories, methods, and results. The nine thrust areas for this fiscal year are: Computational Electronics and Electromagnetics; Computational Mechanics; Diagnostics and Microelectronics; Emerging Technologies; Fabrication Technology; Materials Science and Engineering; Microwave and Pulsed Power; Nondestructive Evaluation; and Remote Sensing and Imaging, and Signal Engineering.

  11. Effective Conveyor Belt Inspection for Improved Mining Productivity

    SciTech Connect (OSTI)

    Chris Fromme

    2006-06-01T23:59:59.000Z

    This document details progress on the project entitled ''Effective Conveyor Belt Inspection for Improved Mining Productivity'' during the period from November 15, 2004 to May 14, 2004. Highlights include fabrication of low-cost prototype hardware, acquisition of infrared thermal data, and initial design of a Smart-Camera based system.

  12. Effective Conveyor Belt Inspection for Improved Mining Productivity

    SciTech Connect (OSTI)

    Chris Fromme

    2006-06-01T23:59:59.000Z

    This document details progress on the project entitled ''Effective Conveyor Belt Inspection for Improved Mining Productivity'' during the period from November 15, 2004 to May 14, 2004. Highlights include fabrication of an improved LED lightbar, fabrication of a line-scan sensor head for the Smart-Camera based prototype, and development of prototype vulcanized splice detection algorithms.

  13. A glimpse of provenance through the diagenetic haze in Smackover sandstones of the Gulf Coast

    SciTech Connect (OSTI)

    Dworkin, S.I. (Univ. of Texas, Austin (USA))

    1990-05-01T23:59:59.000Z

    Late Jurassic Smackover sandstones deposited in the four interior salt basins of the Gulf Coast have been extensively altered, yet their provenance signature has not been grossly modified on QFL and QmFLt plots. Recalculating framework compositions to account for diagenesis suggests that Smackover sandstones were derived from the Ouachita fold and thrust belt and the interior portion of the North American craton. Differences in framework composition between the four basins result from both diagenesis and provenance. Detrital quartz and rock fragments have been lime modified by diagenesis. The south Texas and Mississippi basin sandstones contain more polycrystalline quartz than the other two basins. Rock fragments in the three eastern basins consist primarily of SRFs and low-grade MRFs; south Texas sandstones contain mostly gneiss and schist. Feldspar composition is controlled by the pore fluid chemistry. The South Texas and Mississippi basins contain potassium-rich K-spar whereas the east Texas and Louisiana basins contain mostly albite. A uniform 6% loss (whole rock) of feldspar can be recognized petrographically in all four basins but this loss does not significantly shift the provenance fields on QFL and QmFLt plots. Mississippi basin sandstones plot primarily in the craton interior provenance field supporting derivation of these sands from the ancestral Mississippi river, East Texas sandstones are also dominated by a cratonic provenance area. Louisiana sandstones plot in the recycled orogen field and were primarily derived from a local source in the Ouachita fold belt. The provenance of south Texas sands was the interior zone of the Ouachitas, as indicated by the presence of high-grade metamorphic rock fragments and Rb-Sr dates of detrital muscovite.

  14. Direct measurement of the impulse in a magnetic thrust chamber system for laser fusion rocket

    SciTech Connect (OSTI)

    Maeno, Akihiro; Yamamoto, Naoji; Nakashima, Hideki [Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-1 Kasuga-kouen, Kasuga, Fukuoka 816-8580 (Japan); Fujioka, Shinsuke; Johzaki, Tomoyuki [Institute of Laser Engineering, Osaka University, Suita, Osaka 565-087 (Japan); Mori, Yoshitaka [Graduate School for the Creation of New Photonics Industries, Hamamatsu, Shizuoka 431-1202 (Japan); Sunahara, Atsushi [Institute for Laser Technology, Suita, Osaka 565-087 (Japan)

    2011-08-15T23:59:59.000Z

    An experiment is conducted to measure an impulse for demonstrating a magnetic thrust chamber system for laser fusion rocket. The impulse is produced by the interaction between plasma and magnetic field. In the experiment, the system consists of plasma and neodymium permanent magnets. The plasma is created by a single-beam laser aiming at a polystyrene spherical target. The impulse is 1.5 to 2.2 {mu}Ns by means of a pendulum thrust stand, when the laser energy is 0.7 J. Without magnetic field, the measured impulse is found to be zero. These results indicate that the system for generating impulse is working.

  15. Late Pleistocene to Holocene slip rates for the Gurvan Bulag thrust fault (Gobi-Altay, Mongolia) estimated with 10

    E-Print Network [OSTI]

    Dverchre, Jacques

    Late Pleistocene to Holocene slip rates for the Gurvan Bulag thrust fault (Gobi-Altay, Mongolia neotectonics; KEYWORDS: Late Pleistocene, Holocene, thrust fault, slip rate, 10Be dating, Mongolia Citation-Altay, Mongolia) estimated with 10 Be dates, J. Geophys. Res., 108(B3), 2162, doi:10.1029/2001JB000553, 2003. 1

  16. Tuning the Passive Structural Response of an Oscillating-foil Propulsion Mechanism for Improved Thrust Generation and Efficiency

    E-Print Network [OSTI]

    Victoria, University of

    Thrust Generation and Efficiency by Andrew James Richards B.A.Sc., The University of British Columbia of an Oscillating-foil Propulsion Mechanism for Improved Thrust Generation and Efficiency by Andrew James Richards B for the use of flexible oscillating foils which, under suitable conditions, have been demon- strated

  17. Thrust Area 2 Free-Piston Compressor for Portable Fluid-Powered Systems

    E-Print Network [OSTI]

    Barth, Eric J.

    Thrust Area 2 Free-Piston Compressor for Portable Fluid-Powered Systems Dr. Eric J. Barth Jos A Diluted combustion products from previous stroke Combustion gases expand down to Air in compressor chamber begins to pressurize. Combustion products cooled Compressor side pumps to reservoir. Magnet locks free

  18. A Thrust Stand for High-power Steady-state Plasma Thrusters L.D. Cassady,

    E-Print Network [OSTI]

    Choueiri, Edgar

    Accelerator with lithium vapor propellant operating at 500 A, 9.5 mg/s lithium flow rate and a 0.07 T applied-pendulum thrust stand described here is used as an integral part of our lithium Lorentz Force Accelerator (LiLFA) research program. The demonstration of 50% efficiency at 0.5 MW with 500 hours of nearly erosion

  19. Modeling the Characteristics of Propulsion Systems Providing Less Than 10 N Thrust

    E-Print Network [OSTI]

    . Chiasson, Paulo C. Lozano May 2012 SSL#8-12 1 #12;2 #12;Modeling the Characteristics of Propulsion Systems Providing Less Than 10 N Thrust Thomas M. Chiasson, Paulo C. Lozano May 2012 SSL#8-12 1 1 This work is based

  20. CFD Simulation of Dynamic Thrust and Radial Forces on a Vertical Axis Wind Turbine Blade

    E-Print Network [OSTI]

    Tullis, Stephen

    CFD Simulation of Dynamic Thrust and Radial Forces on a Vertical Axis Wind Turbine Blade K. Mc vibration source of a small scale vertical axis wind turbine. The dynamic loading on the blades of the turbine, as they rotate about the central shaft and travel through a range of relative angles of attack

  1. Convergence rate across the Nepal Himalaya and interseismic coupling on the Main Himalayan Thrust: Implications

    E-Print Network [OSTI]

    Avouac, Jean-Philippe

    Convergence rate across the Nepal Himalaya and interseismic coupling on the Main Himalayan Thrust the Nepal Himalaya using GPS times series from 30 stations in Nepal and southern Tibet, in addition and eastern Nepal and 20.5 1 mm/yr in western Nepal. The moment deficit due to locking of the MHT

  2. Structural geology of the northern termination of the Crawford Thrust, western Wyoming

    E-Print Network [OSTI]

    Evans, James Paul

    1983-01-01T23:59:59.000Z

    Comparison with Previous Work CONCLUSIONS. REFERENCES CITED. VITA, 106 107 116 177 136 139 144 1X LIST OF FIGUPES F IGUPE PAGE Generalized map of the Utah-Wyoming-Idaho Th!ust Belt, showing study area location.... . . . . . . . . , . . . . . . . Strati graphi c column for the Utah-Wyom; ng- Idaho !hrust Belt Examples of Listric Normal faults From Wyoming. . 14 Cross sections A-A' through C-C' tron Brown and Spang ('l9/8) 21 Cross sections D-D' through ! -F' from Brown and Spang (1978) 22...

  3. The Main Mantle Thrust (MMT) is the regional contact between collider India and the overthrust Kohistan-Ladakh series in the Pakistan Himalaya. Early Himalayan-age

    E-Print Network [OSTI]

    Kidd, William S. F.

    and the overthrust Kohistan-Ladakh series in the Pakistan Himalaya. Early Himalayan-age thrusting and some later (~20

  4. Thrust and efficiency model for electron-driven magnetic nozzles Justin M. Little and Edgar Y. Choueiri

    E-Print Network [OSTI]

    Choueiri, Edgar

    Thrust and efficiency model for electron-driven magnetic nozzles Justin M. Little and Edgar Y-driven magnetic nozzles Justin M. Littlea) and Edgar Y. Choueiri Electric Propulsion and Plasma Dynamics

  5. Measurement of normal thrust and evaluation of upper-convected Maxwell models for molten plastics in large amplitude oscillatory shear

    E-Print Network [OSTI]

    Oakley, Jason Glen

    1992-01-01T23:59:59.000Z

    with Relaxation Spectrum Re- ported by Khan and Larson (1987) . IV. 5 Normal Thrust Measurements IV. 6 Mewts-Denn Model Compared With Normal Thrust Measure- ments 37 42 44 46 49 V CONCLUSION REFERENCES APPENDIX FIGURES . . APPENDIX Pa, ge B FIRST... tensor, this is also referred to as the Maxwell model. I. 5 1 Maxwell Model Dealy and Wissbrun (1990) give the Boltzmann superposition principle in the material objective (ie. frame indifferent) integral form in terms of a memory function...

  6. Tolerance of combined salinity and O2 deficiency in Hordeum marinum accessions from the grain-belt of Western Australia

    E-Print Network [OSTI]

    Malik1,2,3, AI; English1,2, JP; Shepherd1,4, KA; Islam2,5, AKMR; Colmer1,2, TD

    2009-01-01T23:59:59.000Z

    from the grain-belt of Western Australia for tolerance toin the accessions from Western Australia, as well as K +from the grain-belt of Western Australia. Single heads were

  7. A parametric study of the source rate for outer radiation belt electrons using a Kalman filter

    E-Print Network [OSTI]

    Li, Xinlin

    A parametric study of the source rate for outer radiation belt electrons using a Kalman filter Q increasingly popular to describe the outer radiation belt energetic electron environment. We use a Kalman included. We augment the Kalman filter to include the intensity of local acceleration in the state vector

  8. Precambrian Research 136 (2005) 2750 The Wadi Mubarak belt, Eastern Desert of Egypt

    E-Print Network [OSTI]

    Fritz, Harald

    Precambrian Research 136 (2005) 27­50 The Wadi Mubarak belt, Eastern Desert of Egypt, Graz, Austria b Mansoura University, Faculty of Science, Geology Department, El Mansoura, Egypt c February 2003; accepted 3 September 2004 Abstract The Wadi Mubarak belt in Egypt strikes west­east (and

  9. Thermo-mechanical structure beneath the young orogenic belt of Taiwan

    E-Print Network [OSTI]

    Ma, Kuo-Fong

    Thermo-mechanical structure beneath the young orogenic belt of Taiwan Kuo-Fong Ma*, Teh-Ru Alex Abstract We investigate the thermo-mechanical properties beneath the young orogenic belt of Taiwan.V. All rights reserved. Keywords: Thermo-mechanical; Rheology; Seismicity; Strength profile; Composition

  10. Comparison of two approaches to automated PI controller tuning for an industrial weigh belt feeder

    E-Print Network [OSTI]

    Collins, Emmanuel

    Comparison of two approaches to automated PI controller tuning for an industrial weigh belt feeder, are applied to an industrial weigh belt feeder that has significant nonlinearities. Both methods do--The Instrumentation, Systems, and Automation Society. Keywords: Fuzzy logic control; Unfalsified control; PI control

  11. Green belts in the hands and minds of farmers: A socio-agronomical approach to farmers' practices

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    1 Green belts in the hands and minds of farmers: A socio-agronomical approach to farmers' practices.alavoine-mornas@irstea.fr ; sabine.girard@irstea.fr Keywords: green belts - biodiversity farmers practices French Alps Abstract of intensive agriculture. In France, this topic is addressed by the "blue and green belts" measure, which

  12. Eastern Overthrust Belt. Signs of a hoped-for awakening

    SciTech Connect (OSTI)

    Bartlett, C.S. Jr.; Biggs, T.H.

    1982-06-01T23:59:59.000Z

    Exploration for oil and gas is on the upswing in the SW Virginia sector of the Eastern Overthrust Belt in the 200-mile long portion between Lee and Montgomery Counties. In the past several months one new oil field has been opened and the area's only gas field has been revived after lying idle for 23 yr. These signs of a hoped-for awakening have been accompanied by an intense leasing program by many oil companies. This review is confined to the geology of the strongly folded and faulted area of SW Virginia. In the Overthrust area, early studies indicated that oil would be found only in portions of Lee and Scott Counties, and that other areas would contain only natural gas because of the greater intensity of regional metamorphism. Drilling so far has confirmed these forecasts. This study will be divided in a similar manner.

  13. Structure and evolution of the East Sierran thrust system, east central California

    E-Print Network [OSTI]

    Dunne, George C.; Walker, J. Douglas

    2004-08-01T23:59:59.000Z

    . Geologic sketch map of the southern Inyo Mountains. IMVC is Inyo Mountains Volcanic Complex of Dunne et al. [1998]. Informal pluton names are as follows: F, French Spring; B, Black Warrior; L, Long John. TC4012 DUNNE AND WALKER: EAST SIERRAN THRUST SYSTEM 2... by the Dolomite Canyon fault and by contractional shear zones in the upper plate of the Dolomite fault; truncations reveal a component of right drag; (2) prominent shear zone in Black Warrior pluton (163 Ma; SI-D91-3) shows a gently plunging mineral lineation...

  14. Thrust 1: Structure and Dynamics of Simple Fluid-Solid Interfaces (Peter T. Cumm

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch >Internship Program The NIF andPointsThrust 1: Structure and Dynamics of

  15. A two-dimensional finite difference model of the effects of erosion on the evolution of pore pressure within a moving thrust sheet

    E-Print Network [OSTI]

    Sales, James Gregory

    1994-01-01T23:59:59.000Z

    conditions (see Table 2) where all niodcl layers are assigned R values representative of a) sandstone, b) shale, and c) limestone; shown at the 1'inal stage of thrust loading. H was held constant at 1. 2xl0'o Pa i 36 13 Excess pore pressure for thrust... tectonic style of orogens and individual thrust. sheets. Johnson (1981), for instance, suggested that the Keystone thrust of southeast Nevada traveled as much as eighty-eight kilometers facilitated by the removal of the lithostatic load. More generally...

  16. US Synthetic Corp (TRL 4 Component)- The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines

    Broader source: Energy.gov [DOE]

    US Synthetic Corp (TRL 4 Component) - The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines

  17. The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission

    E-Print Network [OSTI]

    Wygant, J. R.

    The Electric Fields and Waves (EFW) Instruments on the two Radiation Belt Storm Probe (RBSP) spacecraft (recently renamed the Van Allen Probes) are designed to measure three dimensional quasi-static and low frequency ...

  18. Water Ice on the Satellite of Kuiper Belt Object 2003 EL61

    E-Print Network [OSTI]

    K. M Barkume; M. E. Brown; E. L. Schaller

    2006-01-24T23:59:59.000Z

    We have obtained a near infrared spectrum of the brightest satellite of the large Kuiper Belt Object, 2003 EL61. The spectrum has absorption features at 1.5 and 2.0 microns, indicating that water ice is present on the surface. We find that the satellite's absorption lines are much deeper than water ice features typically found on Kuiper Belt Objects. We argue that the unusual spectrum indicates that the satellite was likely formed by impact and not by capture.

  19. An economic analysis of sprinkler irrigation technology in the Texas Rice Belt

    E-Print Network [OSTI]

    Parker, Michael R

    1985-01-01T23:59:59.000Z

    AN ECONOMIC ANALYSIS OF SPRINKLER IRRIGATION TECHNOLOGY IN THE TEXAS RICE BELT A Thesis MICHAEL RAY PARKER Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OP... SCIENCE December 1985 Major Subject: Agricultural Economics AN ECONOMIC ANALYSIS OF SPRINKLER IRRIGATION TECHNOLOGY IN THE TEXAS RICE BELT A Thesis MICHAEL R. PARKER Approved as to style and content by: M. Edward Rister (Co-Chairman) Ronald C...

  20. Storm/substorm signatures in the outer belt

    SciTech Connect (OSTI)

    Korth, A.; Friedel, R.H.W.; Mouikis, C. [Max-Planck-Inst. fuer Aeronomie, Lindau (Germany); Fennell, J.F. [Aerospace Corp., El Segundo, CA (United States)

    1998-12-01T23:59:59.000Z

    The response of the ring current region is compared for periods of storm and substorm activity, with an attempt to isolate the contributions of both processes. The authors investigate CRRES particle data in an overview format that allows the display of long-term variations of the outer radiation belt. They compare the evolution of the ring current population to indicators of storm (Dst) and substorm (AE) activity and examine compositional changes. Substorm activity leads to the intensification of the ring current at higher L (L {approximately} 6) and lower ring current energies compared to storms (L {approximately} 4). The O{sup +}/H{sup +} ratio during substorms remains low, near 10%, but is much enhanced during storms (can exceed 100%). They conclude that repeated substorms with an AE {approximately} 900 nT lead to a {Delta}Dst of {approximately} 30 nT, but do not contribute to Dst during storm main phase as substorm injections do not form a symmetric ring current during such disturbed times.

  1. On the Plutinos and Twotinos of the Kuiper Belt

    E-Print Network [OSTI]

    E. I. Chiang; A. B. Jordan

    2002-10-18T23:59:59.000Z

    We illuminate dynamical properties of Kuiper Belt Objects (KBOs) in the 3:2 (``Plutino'') and 2:1 (``Twotino'') Neptunian resonances within the model of resonant capture and migration. We analyze a series of numerical integrations, each involving the 4 migratory giant planets and 400 test particles distributed throughout trans-Neptunian space, to measure efficiencies of capture as functions of migration speed. Snapshots of the spatial distribution of resonant KBOs reveal that Twotinos cluster +/- 75 degrees away from Neptune's longitude, while Plutinos cluster +/- 90 degrees away. Longitudinal clustering persists even for surveys that are not volume-limited in their ability to detect resonant KBOs. Remarkably, between -90 degrees and -60 degrees of Neptune's longitude, we find the sky density of Twotinos to nearly equal that of Plutinos, despite the greater average distance of Twotinos. We couple our findings to observations to crudely estimate that the intrinsic Twotino population is within a factor of 3 of the Plutino population. Most strikingly, the migration model predicts that more Twotinos may lie at longitudes behind that of Neptune than ahead of it. The magnitude of the asymmetry amplifies dramatically with faster rates of migration and can be as large as 300%. A differential measurement of the sky density of 2:1 resonant objects behind of and in front of Neptune's longitude would powerfully constrain the migration history of that planet.

  2. Initial highlights from the Herschel Gould Belt survey

    E-Print Network [OSTI]

    Andr, Ph; Bontemps, S; Knyves, V; Motte, F; Schneider, N; Didelon, P; Minier, V; Saraceno, P; Ward-Thompson, D; Di Francesco, J; White, G; Molinari, S; Testi, L; Abergel, A; Griffin, M; Henning, Th; Royer, P; Mern, B; Vavrek, R; Attard, M; Arzoumanian, D; Wilson, C D; Ade, P; Aussel, H; Baluteau, J -P; Benedettini, M; Bernard, J -Ph; Blommaert, J A D L; Cambrsy, L; Cox, P; Di Giorgio, A; Hargrave, P; Hennemann, M; Huang, M; Kirk, J; Krause, O; Launhardt, R; Leeks, S; Pennec, J Le; Li, J Z; Martin, P; Maury, A; Olofsson, G; Omont, A; Peretto, N; Pezzuto, S; Prusti, T; Roussel, H; Russeil, D; Sauvage, M; Sibthorpe, B; Sicilia-Aguilar, A; Spinoglio, L; Waelkens, C; Woodcraft, A; Zavagno, A

    2010-01-01T23:59:59.000Z

    We summarize the first results from the Gould Belt survey, obtained toward the Aquila Rift and Polaris Flare regions during the 'science demonstration phase' of Herschel. Our 70-500 micron images taken in parallel mode with the SPIRE and PACS cameras reveal a wealth of filamentary structure, as well as numerous dense cores embedded in the filaments. Between ~ 350 and 500 prestellar cores and ~ 45-60 Class 0 protostars can be identified in the Aquila field, while ~ unbound starless cores and no protostars are observed in the Polaris field. The prestellar core mass function (CMF) derived for the Aquila region bears a strong resemblance to the stellar initial mass function (IMF), already confirming the close connection between the CMF and the IMF with much better statistics than earlier studies. Comparing and contrasting our Herschel results in Aquila and Polaris, we propose an observationally-driven scenario for core formation according to which complex networks of long, thin filaments form first within molecul...

  3. Volatile Loss and Classification of Kuiper Belt Objects

    E-Print Network [OSTI]

    Johnson, R E; Young, L A; Volkov, A N; Schmidt, C

    2015-01-01T23:59:59.000Z

    Observations indicate that some of the largest Kuiper Belt Objects (KBOs) have retained volatiles in the gas phase, which implies the presence of an atmosphere that can affect their reflectance spectra and thermal balance. Volatile escape rates driven by solar heating of the surface were estimated by Schaller and Brown (2007) (SB) and Levi and Podolak (2009)(LP) using Jeans escape from the surface and a hydrodynamic model respectively. Based on recent molecular kinetic simulations these rates can be hugely in error (e.g., a factor of $\\sim 10^{16}$ for the SB estimate for Pluto). In this paper we estimate the loss of primordial N$_2$ for several large KBOs guided by recent molecular kinetic simulations of escape due to solar heating of the surface and due to UV/EUV heating of the upper atmosphere. For the latter we extrapolate simulations of escape from Pluto (Erwin et al. 2013) using the energy limited escape model recently validated for the KBOs of interest by molecular kinetic simulations (Johnson et al. 2...

  4. Planar resonant periodic orbits in Kuiper belt dynamics

    E-Print Network [OSTI]

    George Voyatzis; Thomas Kotoulas

    2005-02-28T23:59:59.000Z

    In the framework of the planar restricted three body problem we study a considerable number of resonances associated to the Kuiper Belt dynamics and located between 30 and 48 a.u. Our study is based on the computation of resonant periodic orbits and their stability. Stable periodic orbits are surrounded by regular librations in phase space and in such domains the capture of trans-Neptunian object is possible. All the periodic orbits found are symmetric and there is evidence for the existence of asymmetric ones only in few cases. In the present work first, second and third order resonances are under consideration. In the planar circular case we found that most of the periodic orbits are stable. The families of periodic orbits are temporarily interrupted by collisions but they continue up to relatively large values of the Jacobi constant and highly eccentric regular motion exists for all cases. In the elliptic problem and for a particular eccentricity value of the primary bodies the periodic orbits are isolated. The corresponding families, where they belong to, bifurcate from specific periodic orbits of the circular problem and seem to continue up to the rectilinear problem. Both stable and unstable orbits are obtained for each case. In the elliptic problem the unstable orbits found are associated with narrow chaotic domains in phase space. The evolution of the orbits, which are located in such chaotic domains, seems to be practically regular and bounded for long time intervals.

  5. Kuiper belt structure around nearby super-Earth host stars

    E-Print Network [OSTI]

    Kennedy, Grant M; Marmier, Maxime; Greaves, Jane S; Wyatt, Mark C; Bryden, Geoffrey; Holland, Wayne; Lovis, Christophe; Matthews, Brenda C; Pepe, Francesco; Sibthorpe, Bruce; Udry, Stphane

    2015-01-01T23:59:59.000Z

    We present new observations of the Kuiper belt analogues around HD 38858 and HD 20794, hosts of super-Earth mass planets within 1 au. As two of the four nearby G-type stars (with HD 69830 and 61 Vir) that form the basis of a possible correlation between low-mass planets and debris disc brightness, these systems are of particular interest. The disc around HD 38858 is well resolved with Herschel and we constrain the disc geometry and radial structure. We also present a probable JCMT sub-mm continuum detection of the disc and a CO J=2-1 upper limit. The disc around HD 20794 is much fainter and appears marginally resolved with Herschel, and is constrained to be less extended than the discs around 61 Vir and HD 38858. We also set limits on the radial location of hot dust recently detected around HD 20794 with near-IR interferometry. We present HARPS upper limits on unseen planets in these four systems, ruling out additional super-Earths within a few au, and Saturn-mass planets within 10 au. We consider the disc st...

  6. Abstract --This panel session paper outlines one of the re-search thrust areas in the Power System Engineering Research

    E-Print Network [OSTI]

    Oren, Shmuel S.

    1 Abstract -- This panel session paper outlines one of the re- search thrust areas in the Power- tential of harnessing the inherent flexibility of certain load types such as heating and cooling and PHEV for massive penetration of renewable resources such as wind and solar power into the mix of elec- tricity

  7. Growth of asteroids, planetary embryos and Kuiper belt objects by chondrule accretion

    E-Print Network [OSTI]

    Johansen, Anders; Lacerda, Pedro; Bizzarro, Martin

    2015-01-01T23:59:59.000Z

    Chondrules are millimeter-sized spherules that dominate primitive meteorites (chondrites) originating from the asteroid belt. The incorporation of chondrules into asteroidal bodies must be an important step in planet formation, but the mechanism is not understood. We show that the main growth of asteroids can result from gas-drag-assisted accretion of chondrules. The largest planetesimals of a population with a characteristic radius of 100 km undergo run-away accretion of chondrules within ~3 Myr, forming planetary embryos up to Mars sizes along with smaller asteroids whose size distribution matches that of main belt asteroids. The aerodynamical accretion leads to size-sorting of chondrules consistent with chondrites. Accretion of mm-sized chondrules and ice particles drives the growth of planetesimals beyond the ice line as well, but the growth time increases above the disk life time outside of 25 AU. The contribution of direct planetesimal accretion to the growth of both asteroids and Kuiper belt objects is...

  8. The Antarctic Circumpolar Productivity Belt Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, Washington, USA

    E-Print Network [OSTI]

    Follows, Mick

    The Antarctic Circumpolar Productivity Belt T. Ito Joint Institute for the Study of the Atmosphere] We illustrate the mechanisms controlling the spatial patterns of biological productivity of enhanced export production, figuratively termed as the Antarctic Circumpolar Productivity Belt. As observed

  9. Timing of granite emplacement and cooling in the SongpanGarze^ Fold Belt (eastern Tibetan Plateau) with tectonic implications

    E-Print Network [OSTI]

    Timing of granite emplacement and cooling in the Songpan­Garze^ Fold Belt (eastern Tibetan Plateau Abstract New U­Pb and Rb­Sr geochronology on syn- and post-orogenic granites provide constraints on the timing of major tectonic events in the Songpan­Garze^ fold belt, west Sichuan, China. The Ma Nai granite

  10. Planck intermediate results. XII: Diffuse Galactic components in the Gould Belt System

    E-Print Network [OSTI]

    Ade, P A R; Alves, M I R; Arnaud, M; Ashdown, M; Atrio-Barandela, F; Aumont, J; Baccigalupi, C; Banday, A J; Barreiro, R B; Bartlett, J G; Battaner, E; Bedini, L; Benabed, K; Benot, A; Bernard, J -P; Bersanelli, M; Bonaldi, A; Bond, J R; Borrill, J; Bouchet, F R; Boulanger, F; Burigana, C; Butler, R C; Chen, X; Chiang, L -Y; Christensen, P R; Clements, D L; Colombi, S; Colombo, L P L; Coulais, A; Cuttaia, F; Davies, R D; Davis, R J; de Bernardis, P; de Zotti, G; Delabrouille, J; Dickinson, C; Diego, J M; Dobler, G; Dole, H; Donzelli, S; Dor, O; Douspis, M; Dupac, X; Enlin, T A; Finelli, F; Forni, O; Frailis, M; Franceschi, E; Galeotta, S; Ganga, K; Gnova-Santos, R T; Ghosh, T; Giard, M; Giardino, G; Giraud-Hraud, Y; Gonzlez-Nuevo, J; Grski, K M; Gregorio, A; Gruppuso, A; Hansen, F K; Harrison, D; Hernndez-Monteagudo, C; Hildebrandt, S R; Hivon, E; Hobson, M; Holmes, W A; Hornstrup, A; Hovest, W; Huffenberger, K M; Jaffe, T R; Jaffe, A H; Juvela, M; Keihnen, E; Keskitalo, R; Kisner, T S; Knoche, J; Kunz, M; Kurki-Suonio, H; Lagache, G; Lhteenmki, A; Lamarre, J -M; Lasenby, A; Lawrence, C R; Leach, S; Leonardi, R; Lilje, P B; Linden-Vrnle, M; Lubin, P M; Macas-Prez, J F; Maffei, B; Maino, D; Mandolesi, N; Maris, M; Marshall, D J; Martin, P G; Martnez-Gonzlez, E; Masi, S; Massardi, M; Matarrese, S; Mazzotta, P; Melchiorri, A; Mennella, A; Mitra, S; Miville-Deschnes, M -A; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Munshi, D; Murphy, J A; Naselsky, P; Nati, F; Natoli, P; Nrgaard-Nielsen, H U; Noviello, F; Novikov, D; Novikov, I; Osborne, S; Oxborrow, C A; Pajot, F; Paladini, R; Paoletti, D; Peel, M; Perotto, L; Perrotta, F; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Pointecouteau, E; Polenta, G; Popa, L; Poutanen, T; Pratt, G W; Prunet, S; Puget, J -L; Rachen, J P; Reach, W T; Rebolo, R; Reinecke, M; Renault, C; Ricciardi, S; Ristorcelli, I; Rocha, G; Rosset, C; Rubio-Martn, J A; Rusholme, B; Salerno, E; Sandri, M; Savini, G; Scott, D; Spencer, L; Stolyarov, V; Sudiwala, R; Suur-Uski, A -S; Sygnet, J -F; Tauber, J A; Terenzi, L; Tibbs, C T; Toffolatti, L; Tomasi, M; Tristram, M; Valenziano, L; Van Tent, B; Varis, J; Vielva, P; Villa, F; Vittorio, N; Wade, L A; Wandelt, B D; Ysard, N; Yvon, D; Zacchei, A; Zonca, A

    2013-01-01T23:59:59.000Z

    We perform an analysis of the diffuse low-frequency Galactic components in the Southern part of the Gould Belt system ($130^\\circ\\leq l\\leq 230^\\circ$ and $-50^\\circ\\leq b\\leq -10^\\circ$). Strong UV flux coming from the Gould Belt super-association is responsible for bright diffuse foregrounds that we observe from our position inside the system and that can help us improve our knowledge of the Galactic emission. Free-free emission and anomalous microwave emission (AME) are the dominant components at low frequencies ($\

  11. One and two-dimensional finite difference models of pore pressure evolution within and below a moving thrust sheet

    E-Print Network [OSTI]

    Smith, Richard Edwin

    1992-01-01T23:59:59.000Z

    Chatanooga Shale through the Cambrian Pumpkin Valley Shale were measured within the Copper Ridge thrust sheet on cross section A-A' of the Swan Island Quadrangle. Again, the Rome Formation forms the basal detachment zone and is not completely exposed... contain a variety of ancient, hydrologically and mechanically different, well consolidated sedimentary layers including shales, siltstones, sandstones, carbonates and evaporites. In addition, the models cited above were made for specific accretionary...

  12. One and two-dimensional finite difference models of pore pressure evolution within and below a moving thrust sheet

    E-Print Network [OSTI]

    Smith, Richard Edwin

    1992-01-01T23:59:59.000Z

    Chatanooga Shale through the Cambrian Pumpkin Valley Shale were measured within the Copper Ridge thrust sheet on cross section A-A' of the Swan Island Quadrangle. Again, the Rome Formation forms the basal detachment zone and is not completely exposed... contain a variety of ancient, hydrologically and mechanically different, well consolidated sedimentary layers including shales, siltstones, sandstones, carbonates and evaporites. In addition, the models cited above were made for specific accretionary...

  13. Precipitation of relativistic electrons of the Van Allen belts into the proton aurora

    SciTech Connect (OSTI)

    Jordanova, Vania K [Los Alamos National Laboratory; Miyoshi, Y [NAGOYA UNIV; Sakaguchi, K [NAGOYA UNIV; Shiokawa, K [NAGOYA UNIV; Evans, D S [SEC/NOAA; Albert, Jay [AFRL; Connors, M [UNIV OF ATHABASCA

    2008-01-01T23:59:59.000Z

    The Van Allen electron belts consist of two regions encircling the earth in which relativistic electrons are trapped in the earth's magnetic field. Populations of relativistic electrons in the Van Allen belts vary greatly with geomagnetic disturbance and they are a major source of damage to space vehicles. In order to know when and by how much these populations of relativistic electrons increase, it is important to elucidate not only the cause of acceleration of relativistic electrons but also the cause of their loss from the Van Allen belts. Here we show the first evidence that left-hand polarized electromagnetic ion cyclotron (EMIC) plasma waves can cause the loss of relativistic electrons into the atmosphere, on the basis of results of an excellent set of ground and satellite observations showing coincident precipitation of ions with energies of tens of keV and of relativistic electrons into an isolated proton aurora. The proton aurora was produced by precipitation of ions with energies of tens of keV due to EMIC waves near the plasma pause, which is a manifestation of wave-particle interactions. These observations clarify that ions with energies of tens of keV affect the evolution of relativistic electrons in the Van Allen belts via parasitic resonance with EMIC waves, an effect that was first theoretically predicted in the early 1970's.

  14. Modeling the deep penetration of outer belt electrons during the ``Halloween'' magnetic storm in 2003

    E-Print Network [OSTI]

    Li, Xinlin

    of this model is that the inputs are solely from measurements of current solar wind and energetic electrons. During the geomagnetic storm of October/November 2003, the intensity peak of the outer radiation belt model is developed, using the measurements of relativistic electrons at geosynchronous orbit

  15. Rayleigh-Taylor instability, lithospheric dynamics, surface topography at convergent mountain belts, and gravity anomalies

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Rayleigh-Taylor instability, lithospheric dynamics, surface topography at convergent mountain belts; accepted 25 April 2013; published 24 May 2013. [1] Surface topography and associated gravity anomalies of surface topography, with negative (positive) free-air anomalies over regions of descent (ascent

  16. GEOSPATIAL DECISION SUPPORT FOR SEED COMPANIES IN THE CORN BELT Marcus E. Tooze1

    E-Print Network [OSTI]

    Reichenbach, Stephen E.

    GEOSPATIAL DECISION SUPPORT FOR SEED COMPANIES IN THE CORN BELT Marcus E. Tooze1 , S. Hatten2 , W in the seed industry, new applications emerge for mapping, analysis, and interpretation of cultivar. In addition, a geospatial framework was developed to identify the soil landscapes that had the best soil

  17. Incorporating spectral characteristics of Pc5 waves into three-dimensional radiation belt

    E-Print Network [OSTI]

    Elkington, Scot R.

    . This is the first analysis in three dimensions utilizing model ULF wave electric and magnetic fields on the guiding losses at MeV energies. This inner electron belt resides mainly below 2 RE geocen- tric distance center trajectories of relativistic electrons. A model is developed, describing magnetic and electric

  18. Energetic outer radiation-belt electron precipitation during recurrent solar activity

    E-Print Network [OSTI]

    Otago, University of

    on the atmosphere [Seppälä et al., 2004]. During some intense solar storms solar protons in the energy range 1Energetic outer radiation-belt electron precipitation during recurrent solar activity Mark A and Physical Sciences, University of Newcastle, Callaghan, Australia. Russell S. Grew School of Mathematical

  19. High-temperature deformation in the Neoproterozoic transpressional Ribeira belt, southeast Brazil

    E-Print Network [OSTI]

    Bascou, Jrme

    High-temperature deformation in the Neoproterozoic transpressional Ribeira belt, southeast Brazil^ncias da Universidade de Sa~o Paulo, Rua do Lago 562, Cep: 05508-080, Sa~o Paulo, SP, Brazil b Laboratoire Geologia, Universidade Federal de Ouro Preto, 35400-000, Ouro Pre^to, MG, Brazil Received 5 April 2001

  20. Analysis of Heavy Oil Recovery by Thermal EOR in a Meander Belt: From Geological

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Analysis of Heavy Oil Recovery by Thermal EOR in a Meander Belt: From Geological to Reservoir Energies nouvelles2 INTRODUCTION SAGD will become increasingly important for heavy oil recovery because assessment, well placement and production performance prediction. One of the most famous heavy oil provinces

  1. Tuesday, 31 July, 2012 Rapid radiation belt losses occurring during high speed solar wind stream1

    E-Print Network [OSTI]

    Otago, University of

    Tuesday, 31 July, 2012 1 Rapid radiation belt losses occurring during high speed solar wind stream1 Raita11 Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland12 Abstract. Recent geomagnetic disturbances triggered by the arrival of a Solar14 Wind Stream Interface (SWSI). In the current

  2. Power Line Damage, Electrical Outages Reduced in the ''Sleet Belt'': NICE3 Steel Project Fact Sheet

    SciTech Connect (OSTI)

    NONE

    2000-04-25T23:59:59.000Z

    The AR Windamper System was developed through a grant from the Inventions and Innovation Program, to protect power transmission lines in sleet belt states and provinces by eliminating the ''galloping'' phenomenon. Wind damping products minimize power outages and reduce repair costs to transmission lines.

  3. A VR-BASED TRAINING PROGRAM FOR CONVEYOR BELT SAFETY SUBMITTED: June 2007

    E-Print Network [OSTI]

    which has forced its adoption of large and fast moving equipment for transporting bulk material. Belt as their economy of operation, reliability, versatility, and practically unlimited range of capabilities. With all of these factors comes an inherent danger. From 1995 to 2007 there have been a total of 534 equipment related fatal

  4. Seismic imaging of the lithospheric structure of the Zagros mountain belt (Iran)

    E-Print Network [OSTI]

    Hatzfeld, Denis

    Seismic imaging of the lithospheric structure of the Zagros mountain belt (Iran) ANNE PAUL1*, DENIS International Institute of Earthquake Engineering and Seismology, Tehran, Iran 3 Institute for Advanced Studies in Basic Sciences (IASBS), PO Box 45195-1159, Zanjan, Iran *Corresponding author (e-mail: Anne

  5. Holocene vegetation and fire dynamics in the supra-mediterranean belt of the Nebrodi Mountains

    E-Print Network [OSTI]

    Bern, Universität

    and the Mediterranean region. Copyright # 2012 John Wiley & Sons, Ltd. KEYWORDS: climate change; human impact; Ilex TINNER1 1 Institute of Plant Sciences and Oeschger Centre for Climate Change Research, University of BernHolocene vegetation and fire dynamics in the supra-mediterranean belt of the Nebrodi Mountains

  6. Method for determining molten metal pool level in twin-belt continuous casting machines

    DOE Patents [OSTI]

    Kaiser, Timothy D. (Colchester, VT); Daniel, Sabah S. (Pittsburgh, PA); Dykes, Charles D. (Milton, VT)

    1989-03-21T23:59:59.000Z

    A method for determining level of molten metal in the input of a continuous metal casting machine having at least one endless, flexible, revolving casting belt with a surface which engages the molten metal to be cast and a reverse, cooled surface along which is directed high velocity liquid coolant includes the steps of predetermining the desired range of positions of the molten metal pool and positioning at least seven heat-sensing transducers in bearing contact with the moving reverse belt surface and spaced in upstream-downstream relationship relative to belt travel spanning the desired pool levels. A predetermined temperature threshold is set, somewhat above coolant temperature and the output signals of the transducer sensors are scanned regarding their output signals indicative of temperatures of the moving reverse belt surface. Position of the molten pool is determined using temperature interpolation between any successive pair of upstream-downstream spaced sensors, which follows confirmation that two succeeding downstream sensors are at temperature levels exceeding threshold temperature. The method accordingly provides high resolution for determining pool position, and verifies the determined position by utilizing full-strength signals from two succeeding downstream sensors. In addition, dual sensors are used at each position spanning the desired range of molten metal pool levels to provide redundancy, wherein only the higher temperature of each pair of sensors at a station is utilized.

  7. An Outer Planet Beyond Pluto and Origin of the Trans-Neptunian Belt Architecture

    E-Print Network [OSTI]

    Patryk Sofia Lykawka; Tadashi Mukai

    2007-12-13T23:59:59.000Z

    Trans-Neptunian objects (TNOs) are remnants of a collisionally and dynamically evolved planetesimal disk in the outer solar system. This complex structure, known as the trans-Neptunian belt (or Edgeworth-Kuiper belt), can reveal important clues about disk properties, planet formation, and other evolutionary processes. In contrast to the predictions of accretion theory, TNOs exhibit surprisingly large eccentricities, e, and inclinations, i, which can be grouped into distinct dynamical classes. Several models have addressed the origin and orbital evolution of TNOs, but none have reproduced detailed observations, e.g., all dynamical classes and peculiar objects, or provided insightful predictions. Based on extensive simulations of planetesimal disks with the presence of the four giant planets and massive planetesimals, we propose that the orbital history of an outer planet with tenths of Earth's mass can explain the trans-Neptunian belt orbital structure. This massive body was likely scattered by one of the giant planets, which then stirred the primordial planetesimal disk to the levels observed at 40-50 AU and truncated it at about 48 AU before planet migration. The outer planet later acquired an inclined stable orbit (>100 AU; 20-40 deg) because of a resonant interaction with Neptune (an r:1 or r:2 resonance possibly coupled with the Kozai mechanism), guaranteeing the stability of the trans-Neptunian belt. Our model consistently reproduces the main features of each dynamical class with unprecedented detail; it also satisfies other constraints such as the current small total mass of the trans-Neptunian belt and Neptune's current orbit at 30.1 AU. We also provide observationally testable predictions.

  8. Factors determining the adoption or non-adoption of precision agriculture by producers across the cotton belt

    E-Print Network [OSTI]

    Lavergne, Christopher Bernard

    2006-04-12T23:59:59.000Z

    The purpose of this study was to determine factors influencing cotton producer adoption of Precision Agriculture in the cotton belt according to members of the American Cotton Producers of the National Cotton Council. The National Research Council...

  9. Factors determining the adoption or non-adoption of precision agriculture by producers across the cotton belt

    E-Print Network [OSTI]

    Lavergne, Christopher Bernard

    2006-04-12T23:59:59.000Z

    The purpose of this study was to determine factors influencing cotton producer adoption of Precision Agriculture in the cotton belt according to members of the American Cotton Producers of the National Cotton Council. The ...

  10. Mechanical characteristics of folds in Upper Cretaceous strata in the Disturbed Belt of northwestern Montana

    E-Print Network [OSTI]

    Gilbert, Pat Kader

    1974-01-01T23:59:59.000Z

    controlled cross section through a wave trai. n of these folds, The citations on these pages follow the style of the U. S. Geological Survey Bulletin. other field observations, laboratory analysis of collected samples, and theoretical considerations...MECHANICAL CHARACTERISTICS OF FOLDS IN UPPER CRETACEOUS STRATA IN THE DISTURBED BELT OF NORTHWESTERN MONTANA A Thesis by PAT KADER GILBERT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements...

  11. A density-temperature description of the outer electron radiation belt during geomagnetic storms

    SciTech Connect (OSTI)

    Borovsky, Joseph E [Los Alamos National Laboratory; Cayton, Thomas E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

    2009-01-01T23:59:59.000Z

    Electron flux measurements from 7 satellites in geosynchronous orbit from 1990-2007 are fit with relativistic bi-Maxwellians, yielding a number density n and temperature T description of the outer electron radiation belt. For 54.5 spacecraft years of measurements the median value ofn is 3.7x10-4 cm-3 and the median value ofT is 142 keY. General statistical properties of n, T, and the 1.1-1.5 MeV flux J are investigated, including local-time and solar-cycle dependencies. Using superposed-epoch analysis triggered on storm onset, the evolution of the outer electron radiation belt through high-speed-steam-driven storms is investigated. The number density decay during the calm before the storm is seen, relativistic-electron dropouts and recoveries from dropout are investigated, and the heating of the outer electron radiation belt during storms is examined. Using four different triggers (SSCs, southward-IMF CME sheaths, southward-IMF magnetic clouds, and minimum Dst), CME-driven storms are analyzed with superposed-epoch techniques. For CME-driven storms an absence of a density decay prior to storm onset is found, the compression of the outer electron radiation belt at time of SSC is analyzed, the number-density increase and temperature decrease during storm main phase is seen, and the increase in density and temperature during storm recovery phase is observed. Differences are found between the density-temperature and the flux descriptions, with more information for analysis being available in the density-temperature description.

  12. Examining the specific entropy (density of adiabatic invariants) of the outer electron radiation belt

    SciTech Connect (OSTI)

    Borovsky, Joseph E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

    2008-01-01T23:59:59.000Z

    Using temperature and number-density measurements of the energetic-electron population from multiple spacecraft in geosynchronous orbit, the specific entropy S = T/n{sup 2/3} of the outer electron radiation belt is calculated. Then 955,527 half-hour-long data intervals are statistically analyzed. Local-time and solar-cycle variations in S are examined. The median value of the specific entropy (2.8 x 10{sup 7} eVcm{sup 2}) is much larger than the specific entropy of other particle populations in and around the magnetosphere. The evolution of the specific entropy through high-speed-stream-driven geomagnetic storms and through magnetic-cloud-driven geomagnetic storms is studied using superposed-epoch analysis. For high-speed-stream-driven storms, systematic variations in the entropy associated with electron loss and gain and with radiation-belt heating are observed in the various storm phases. For magnetic-cloud-driven storms, multiple trigger choices for the data superpositions reveal the effects of interplanetary shock arrival, sheath driving, cloud driving, and recovery phase. The specific entropy S = T/n{sup 2/3} is algebraically expressed in terms of the first and second adiabatic invariants of the electrons: this allows a relativistic expression for S in terms of T and n to be derived. For the outer electron radiation belt at geosynchronous orbit, the relativistic corrections to the specific entropy expression are -15%.

  13. A Correlation Between Inclination and Color in the Classical Kuiper Belt

    E-Print Network [OSTI]

    Chadwick A. Trujillo; Michael E. Brown

    2002-01-04T23:59:59.000Z

    We have measured broadband optical BVR photometry of 24 Classical and Scattered Kuiper belt objects (KBOs), approximately doubling the published sample of colors for these classes of objects. We find a statistically significant correlation between object color and inclination in the Classical Kuiper belt using our data. The color and inclination correlation increases in significance after the inclusion of additional data points culled from all published works. Apparently, this color and inclination correlation has not been more widely reported because the Plutinos show no such correlation, and thus have been a major contaminant in previous samples. The color and inclination correlation excludes simple origins of color diversity, such as the presence of a coloring agent without regard to dynamical effects. Unfortunately, our current knowledge of the Kuiper belt precludes us from understanding whether the color and inclination trend is due to environmental factors, such as collisional resurfacing, or primordial population effects. A perihelion and color correlation is also evident, although this appears to be a spurious correlation induced by sampling bias, as perihelion and inclination are correlated in the observed sample of KBOs.

  14. A Wide-Field CCD Survey for Centaurs and Kuiper Belt Objects

    E-Print Network [OSTI]

    S. Sheppard; D. Jewitt; C. Trujillo; M. Brown; M. Ashley

    2000-08-29T23:59:59.000Z

    A modified Baker-Nunn camera was used to conduct a wide-field survey of 1428 square degrees of sky near the ecliptic in search of bright Kuiper Belt objects and Centaurs. This area is an order of magnitude larger than any previously published CCD survey for Centaurs and Kuiper Belt Objects. No new objects brighter than red magnitude m=18.8 and moving at a rate 1"/hr to 20"/hr were discovered, although one previously discovered Centaur 1997 CU26 Chariklo was serendipitously detected. The parameters of the survey were characterized using both visual and automated techniques. From this survey the empirical projected surface density of Centaurs was found to be SigmaCentaur(m 1 km) assuming a geometric albedo of 0.04. About 100 Centaurs are larger than 50 km in radius, of which only 4 are presently known. The current total mass of the Centaurs is 10^-4 Earth Masses. No dust clouds were detected resulting from Kuiper Belt object collisions, placing a 3sigma upper limit <600 collisionally produced clouds of m<18.8 per year.

  15. THE COLOR DIFFERENCES OF KUIPER BELT OBJECTS IN RESONANCE WITH NEPTUNE

    SciTech Connect (OSTI)

    Sheppard, Scott S., E-mail: sheppard@dtm.ciw.edu [Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road NW, Washington, DC 20015 (United States)

    2012-12-01T23:59:59.000Z

    The optical colors of 58 objects in mean motion resonance with Neptune were obtained. The various Neptune resonant populations were found to have significantly different surface color distributions. The 5:3 and 7:4 resonances have semimajor axes near the middle of the main Kuiper Belt and both are dominated by ultra-red material (spectral gradient: S {approx}> 25). The 5:3 and 7:4 resonances have statistically the same color distribution as the low-inclination 'cold' classical belt. The inner 4:3 and distant 5:2 resonances have objects with mostly moderately red colors (S {approx} 15), similar to the scattered and detached disk populations. The 2:1 resonance, which is near the outer edge of the main Kuiper Belt, has a large range of colors with similar numbers of moderately red and ultra-red objects at all inclinations. The 2:1 resonance was also found to have a very rare neutral colored object showing that the 2:1 resonance is really a mix of all object types. The inner 3:2 resonance, like the outer 2:1, has a large range of objects from neutral to ultra-red. The Neptune Trojans (1:1 resonance) are only slightly red (S {approx} 9), similar to the Jupiter Trojans. The inner 5:4 resonance only has four objects with measured colors but shows equal numbers of ultra-red and moderately red objects. The 9:5, 12:5, 7:3, 3:1, and 11:3 resonances do not have reliable color distribution statistics since few objects have been observed in these resonances, though it appears noteworthy that all three of the measured 3:1 objects have only moderately red colors, similar to the 4:3 and 5:2 resonances. The different color distributions of objects in mean motion resonance with Neptune are likely a result from the disruption of the primordial Kuiper Belt from the scattering and migration of the giant planets. The few low-inclination objects known in the outer 2:1 and 5:2 resonances are mostly only moderately red. This suggests if the 2:1 and 5:2 have a cold low-inclination component, the objects likely had a significantly different origin than the ultra-red-dominated cold components of the cold classical belt and 5:3 and 7:4 resonances.

  16. The impact of main belt asteroids on infrared--submillimetre photometry and source counts

    E-Print Network [OSTI]

    Cs. Kiss; A. Pal; Th. G. Mueller; P. Abraham

    2007-11-28T23:59:59.000Z

    > Among the components of the infrared and submillimetre sky background, the closest layer is the thermal emission of dust particles and minor bodies in the Solar System. This contribution is especially important for current and future infrared and submillimetre space instruments --like those of Spitzer, Akari and Herschel -- and must be characterised by a reliable statistical model. > We describe the impact of the thermal emission of main belt asteroids on the 5...1000um photometry and source counts, for the current and future spaceborne and ground-based instruments, in general, as well as for specific dates and sky positions. > We used the statistical asteroid model (SAM) to calculate the positions of main belt asteroids down to a size of 1km, and calculated their infrared and submillimetre brightness using the standard thermal model. Fluctuation powers, confusion noise values and number counts were derived from the fluxes of individual asteroids. > We have constructed a large database of infrared and submillimetre fluxes for SAM asteroids with a temporal resolution of 5 days, covering the time span January 1, 2000 -- December 31, 2012. Asteroid fluctuation powers and number counts derived from this database can be obtained for a specific observation setup via our public web-interface. > Current space instruments working in the mid-infrared regime (Akari and Spitzer Space Telescopes) are affected by asteroid confusion noise in some specific areas of the sky, while the photometry of space infrared and submillimetre instruments in the near future (e.g. Herschel and Planck Space Observatories) will not be affected by asteroids. Faint main belt asteroids might also be responsible for most of the zodiacal emission fluctuations near the ecliptic.

  17. Geophysical interpretation of the PASSCAL Ouachita experiment: southern part

    E-Print Network [OSTI]

    Wang, Wen-Kung

    1989-01-01T23:59:59.000Z

    whereas tsvo-dimensional gravity modeling is used to constrain the resulting sismic model. The final model has the follosving major features: (1) Tertiary-Cretaceous sediments consist of four layers with a range of velocity from 1. 9 km/s to 4. 1 km...

  18. Structural geology of the Buckville area, Lake Ouachita, Arkansas

    E-Print Network [OSTI]

    Fugitt, David Spencer

    1978-01-01T23:59:59.000Z

    source to the south, The St nley Shale signifies a drest', c change in the sedimentary regime. Ouring the Late Mississippian +o Early and Middle Pennsyl- vanian periods nearly 12, 500 m. of sediment accumlated in 'he Oua- chita trough ', Bordon...-Missouri i'louniain Shale, anil the Devonian-Mississippian lirkansas !lovaculi te i:hich acted as a less ductile plate betvieen +l. e uiiderlying llomble Shale and the overly!ng Stanl y Shale: aiid (0) the Stanley "hale which behaved iri the same man- nei...

  19. Structural geology of the Buckville area, Lake Ouachita, Arkansas

    E-Print Network [OSTI]

    Fugitt, David Spencer

    1978-01-01T23:59:59.000Z

    in terbedded sar astones and shales, and Morris (1974) interprets the sandstones as turbi- dites. The boundary between the Mississippian and Pennsylvanian systems probably lies in the basal Jackfork Sandstone (Gordon and Stone, '1977). The Johns Valley...

  20. Tectonic fibrous veins: initiation and evolution. Ouachita Orogen, Arkansas

    E-Print Network [OSTI]

    Cervantes, Pablo

    2009-05-15T23:59:59.000Z

    Veins are ubiquitous features in deformed rocks. Despite observations on syntectonic veins spanning two centuries, fundamental questions remain unanswered. Their origin as fractures is largely established but it is still not known why...

  1. Tectonic fibrous veins: initiation and evolution. Ouachita Orogen, Arkansas

    E-Print Network [OSTI]

    Cervantes, Pablo

    2009-05-15T23:59:59.000Z

    fractures filled with quartz. The crystallographic orientation of the precipitated material in veinlets is inherited from host grains at the micron scale and replicated as fibers lengths grow to centimeters. The vein-forming fluid was cyclically...

  2. Ouachita County, Arkansas: Energy Resources | 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 Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: Energy

  3. New Horizons Science Photos from NASA's Pluto-Kuiper Belt Mission

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

    DOE provided the power supply for NASA's New Horizons Mission, a mission to the Pluto and Charon, a double-planet system, and the Kuiper Belt. There are 61 science photos posted on the New Horizons website, along with mission photos, spacecraft images, launch photos, posters and renderings that are both scientific and artistic. Dates range from June of 2006 to February of 2008. The images can be searched by keywords, by date, or by subject topic. They can also be browsed as an entire list. Each image has a detailed description.

  4. Water Ice in 2060 Chiron and its Implications for Centaurs and Kuiper Belt Objects

    E-Print Network [OSTI]

    J. X. Luu; D. C. Jewitt; C. Trujillo

    2000-02-04T23:59:59.000Z

    We report the detection of water ice in the Centaur 2060 Chiron, based on near-infrared spectra (1.0 - 2.5 micron) taken with the 3.8-meter United Kingdom Infrared Telescope (UKIRT) and the 10-meter Keck Telescope. The appearance of this ice is correlated with the recent decline in Chiron's cometary activity: the decrease in the coma cross-section allows previously hidden solid-state surface features to be seen. We predict that water ice is ubiquitous among Centaurs and Kuiper Belt objects, but its surface coverage varies from object to object, and thus determines its detectability and the occurrence of cometary activity.

  5. Inward shift of outer radiation belt electrons as a function of Dst index and the influence of the solar wind on electron injections

    E-Print Network [OSTI]

    Li, Xinlin

    Inward shift of outer radiation belt electrons as a function of Dst index and the influence of the solar wind on electron injections into the slot region H. Zhao1 and X. Li1 Received 30 July 2012; revised 11 November 2012; accepted 13 November 2012. [1] The radial positioning of radiation belt

  6. The Ratio of Retrograde to Prograde Orbits: A Test for Kuiper Belt Binary Formation Theories

    E-Print Network [OSTI]

    Hilke E. Schlichting; Re'em Sari

    2008-07-03T23:59:59.000Z

    With the discovery of Kuiper Belt binaries that have wide separations and roughly equal masses new theories were proposed to explain their formation. Two formation scenarios were suggested by Goldreich and collaborators: In the first, dynamical friction that is generated by a sea of small bodies enables a transient binary to become bound ($L^2s$ mechanism); in the second, a transient binary gets bound by an encounter with a third body ($L^3$ mechanism). We show that these different binary formation scenarios leave their own unique signatures in the relative abundance of prograde to retrograde binary orbits. This signature is due to stable retrograde orbits that exist much further out in the Hill sphere than prograde orbits. It provides an excellent opportunity to distinguish between the different binary formation scenarios observationally. We predict that if binary formation proceeded while sub-Hill velocities prevailed, the vast majority of all comparable mass ratio binaries have retrograde orbits. This dominance of retrograde binary orbits is a result of binary formation via the $L^2s$ mechanism, or any other mechanism that dissipates energy in a smooth and gradual manner. For super-Hill velocities binary formation proceeds via the $L^3$ mechanism which produces a roughly equal number of prograde and retrograde binaries. These predictions assume that subsequent orbital evolution due to dynamical friction and dynamical stirring of the Kuiper belt did not alter the sense of the binary orbit after formation.

  7. Main-Belt Asteroids in the K2 Engineering Field of View

    E-Print Network [OSTI]

    Szab, R; Szab, Gy M; Pl, A; Kiss, Cs P; Csk, B; Ills, L; Rcz, G; Kiss, L L

    2015-01-01T23:59:59.000Z

    Unlike NASA's original Kepler Discovery Mission, the renewed K2 Mission will stare at the plane of the Ecliptic, observing each field for approximately 75 days. This will bring new opportunities and challenges, in particular the presence of a large number of main-belt asteroids that will contaminate the photometry. The large pixel size makes K2 data susceptible to the effect of apparent minor planet encounters. Here we investigate the effects of asteroid encounters on photometric precision using a sub-sample of the K2 Engineering data taken in February, 2014. We show examples of asteroid contamination to facilitate their recognition and distinguish these events from other error sources. We conclude that main-belt asteroids will have considerable effects on K2 photometry of a large number of photometric targets during the Mission, that will have to be taken into account. These results will be readily applicable for future space photometric missions applying large-format CCDs, such as TESS and PLATO.

  8. Discovery of a planetary-sized object in the scattered Kuiper belt

    E-Print Network [OSTI]

    M. E. Brown; C. A. Trujillo; D. L. Rabinowitz

    2005-08-30T23:59:59.000Z

    We present the discovery and initial physical and dynamical characterization of the object 2003 UB313. The object is sufficiently bright that for all reasonable values of the albedo it is certain to be larger than Pluto. Pre-discovery observations back to 1989 are used to obtain an orbit with extremely small errors. The object is currently at aphelion in what appears to be a typical orbit for a scattered Kuiper belt object except that it is inclined by about 44 degrees from the ecliptic. The presence of such a large object at this extreme inclination suggests that high inclination Kuiper belt objects formed preferentially closer to the sun. Observations from Gemini Observatory show that the infrared spectrum is, like that of Pluto, dominated by the presence of frozen methane, though visible photometry shows that the object is almost neutral in color compared to Pluto's extremely red color. 2003 UB313 is likely to undergo substantial seasonal change over the large range of heliocentric distances that it travels; Pluto at its current distance is likely to prove a useful analog for better understanding the range of seasonal changes on this body.

  9. INITIAL PLANETESIMAL SIZES AND THE SIZE DISTRIBUTION OF SMALL KUIPER BELT OBJECTS

    SciTech Connect (OSTI)

    Schlichting, Hilke E. [UCLA, Department of Earth and Space Science, 595 Charles E. Young Drive East, Los Angeles, CA 90095 (United States); Fuentes, Cesar I.; Trilling, David E., E-mail: hilke@ucla.edu [Department of Physics and Astronomy, Northern Arizona University, P.O. Box 6010, Flagstaff, AZ 86011 (United States)

    2013-08-01T23:59:59.000Z

    The Kuiper Belt is a remnant from the early solar system and its size distribution contains many important constraints that can be used to test models of planet formation and collisional evolution. We show, by comparing observations with theoretical models, that the observed Kuiper Belt size distribution is well matched by coagulation models, which start with an initial planetesimal population with radii of about 1 km, and subsequent collisional evolution. We find that the observed size distribution above R {approx} 30 km is primordial, i.e., it has not been modified by collisional evolution over the age of the solar system, and that the size distribution below R {approx} 30 km has been modified by collisions and that its slope is well matched by collisional evolution models that use published strength laws. We investigate in detail the resulting size distribution of bodies ranging from 0.01 km to 30 km and find that its slope changes several times as a function of radius before approaching the expected value for an equilibrium collisional cascade of material strength dominated bodies for R {approx}< 0.1 km. Compared to a single power-law size distribution that would span the whole range from 0.01 km to 30 km, we find in general a strong deficit of bodies around R {approx} 10 km and a strong excess of bodies around 2 km in radius. This deficit and excess of bodies are caused by the planetesimal size distribution left over from the runaway growth phase, which left most of the initial mass in small planetesimals while only a small fraction of the total mass is converted into large protoplanets. This excess mass in small planetesimals leaves a permanent signature in the size distribution of small bodies that is not erased after 4.5 Gyr of collisional evolution. Observations of the small Kuiper Belt Object (KBO) size distribution can therefore test if large KBOs grew as a result of runaway growth and constrained the initial planetesimal sizes. We find that results from recent KBO occultation surveys and the observed KBO size distribution can be best matched by an initial planetesimal population that contained about equal mass per logarithmic mass bin in bodies ranging from 0.4 km to 4 km in radius. We further find that we cannot match the observed KBO size distribution if most of the planetesimal mass was contained in bodies that were 10 km in radius or larger simply because their resulting size distribution cannot be sufficiently depleted over 4.5 Gyr to match observations.

  10. Title: Prompt Creation of New Radiation Belts Cluster: Cross-Theme Theory and Data Analysis/SECTP

    E-Print Network [OSTI]

    Lotko, William

    energization rates that are orders of magnitude too slow for such events; and they only describe-pushing code for radiation belt particles in a global MHD simulation of the solar wind energy (>20 MeV), trapping and transporting inward the extreme solar energetic protons produced

  11. Magnetic storm acceleration of radiation belt electrons observed by the Scintillating Fibre Detector (SFD) onboard EQUATOR-S

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    on the 50067300 km, 4 inclination EQUATOR-S orbit show that the increase of the energetic electron ux of electrons in the outer radiation belt has been attributed to Pc 5 band ULF waves excited by high speed solar wind ow associated with magnetic storms (Rostoker et al., 1998). The main features

  12. Carboniferous clastic-wedge stratigraphy, sedimentology, and foreland basin evolution: Black Warrior basin, Alabama and Mississippi

    SciTech Connect (OSTI)

    Hines, R.A.

    1986-05-01T23:59:59.000Z

    Carboniferous clastic-wedge stratigraphy and sedimentology in the Black Warrior basin of Alabama and Mississippi indicate deposition in an evolving foreland basin flanking the Appalachian-Ouachita fold-thrust belt. The strata reflect specific responses to foreland basin subsidence, orogenic activity, sediment supply, and dispersal systems. Definition of the regional stratigraphy of the clastic wedge provides for interpretation of the foreland basin subsidence history by enabling quantitative reconstruction of regional compaction and subsidence profiles. Comparison of the interpreted subsidence history with model profiles of foreland basin subsidence (predicted from loading and flexure of continental lithosphere) allows evaluation of mechanical models in terms of observed clastic-wedge sedimentology and stratigraphy. Mechanical modeling of foreland basin subsidence predicts formation of a flexural bulge that migrates cratonward ahead of the subsiding foreland basin during loading. In the Black Warrior basin, local stratigraphic thins, pinch-outs, and areas of marine-reworked sediments suggest migration of the flexural bulge. Comparison of flexural bulge migration with thermal maturation history allows evaluation of timing of stratigraphic trapping mechanisms with respect to onset of hydrocarbon generation.

  13. Precipitation of radiation belt electrons by EMIC waves, observed from ground and space

    SciTech Connect (OSTI)

    Jordanova, Vania K [Los Alamos National Laboratory; Miyoski, Y [NAGOYA UNIV; Sakaguchi, K [NAGOYA UNIV; Shiokawa, K [NAGOYA UNIV; Evans, D S [NOAA, BOULDER; Albert, Jay [AFRL; Connors, M [UNIV OF ATHABASCA

    2008-01-01T23:59:59.000Z

    We show evidence that left-hand polarised electromagnetic ion cyclotron (EMIC) plasma waves can cause the loss of relativistic electrons into the atmosphere. Our unique set of ground and satellite observations shows coincident precipitation of ions with energies of tens of keY and of relativistic electrons into an isolated proton aurora. The coincident precipitation was produced by wave-particle interactions with EMIC waves near the plasmapause. The estimation of pitch angle diffusion coefficients supports that the observed EMIC waves caused coincident precipitation ofboth ions and relativistic electrons. This study clarifies that ions with energies of tens of ke V affect the evolution of relativistic electrons in the radiation belts via cyclotron resonance with EMIC waves, an effect that was first theoretically predicted in the early 1970's.

  14. Geological evaluation of San Diego Norte Pilot Project, Zuata area, Orinoco Oil Belt, Venezuela

    SciTech Connect (OSTI)

    De Rojas, I.

    1987-10-01T23:59:59.000Z

    The San Diego Norte Pilot Project consists of twelve inclined wells (7 producing wells 300 m (984 ft) apart, plus 5 observation wells) drilled from a cluster, to study the production and compaction behavior under steam soak (huff and puff) of the Tertiary heavy crude oil reservoirs of the Zuata area. This area is located within the Orinoco Heavy Oil belt of Venezuela. A geological model was needed as a base for the reservoir studies and to understand the geological setting. This model was constructed from extensive log information, seismic lines, well samples, and cores. The reservoir sands are friable with an average porosity of 34% and permeabilities ranging from 1 to 7 ..mu..m/sup 2/ (1 to 7 darcys). The sands were deposited in meander belts that stacked up forming multistory bodies. Point bars and channel fills account for 80-90% of the total sand. These sands are internally heterogeneous, sinuous and elongated, and larger than the 1 km/sup 2/ area covered by the project. The topmost two productive sands, which together average 22 m (72 ft), show the best porosities and permeabilities and are isolated by thick clays that make them suitable for selective steam injection. In the project, the oil has a density of about 1.0 g/cm/sup 3/ (10/sup 0/ API) and fills all the sands down to the oil-water contact. The depth of this contact is controlled by regional faults. Based on core compressibility tests, compaction is expected to be the principal production mechanism that could increase the expected primary recovery of 4 to 12% by huff and puff steam injection, leading to a possible recovery of 0.64 x 10/sup 6/ m/sup 3/ (4 million bbl) in six years with four cycles of steam injection. 16 figures, 2 tables.

  15. Scissor thrust valve actuator

    DOE Patents [OSTI]

    DeWall, Kevin G.; Watkins, John C; Nitzel, Michael E.

    2006-08-29T23:59:59.000Z

    Apparatus for actuating a valve includes a support frame and at least one valve driving linkage arm, one end of which is rotatably connected to a valve stem of the valve and the other end of which is rotatably connected to a screw block. A motor connected to the frame is operatively connected to a motor driven shaft which is in threaded screw driving relationship with the screw block. The motor rotates the motor driven shaft which drives translational movement of the screw block which drives rotatable movement of the valve driving linkage arm which drives translational movement of the valve stem. The valve actuator may further include a sensory control element disposed in operative relationship with the valve stem, the sensory control element being adapted to provide control over the position of the valve stem by at least sensing the travel and/or position of the valve stem.

  16. Twin-belt continuous caster with containment and cooling of the exiting cast product for enabling high-speed casting of molten-center product

    DOE Patents [OSTI]

    Dykes, Charles D. (303 Shore Rd., Milton, VT); Daniel, Sabah S. (303 Shore Rd., Pittsburgh, PA); Wood, J. F. Barry (303 Shore Rd., Burlington, VT 05401)

    1990-02-20T23:59:59.000Z

    In continuously casting molten metal into cast product by a twin-belt machine, it is desirable to achieve dramatic increases in speed (linear feet per minute) at which cast product exits the machine, particularly in installations where steel cast product is intended to feed a downstream regular rolling mill (as distinct from a planetary mill) operating in tandem with the twin-belt caster. Such high-speed casting produces product with a relatively thin shell and molten interior, and the shell tends to bulge outwardly due to metallostatic head pressure of the molten center. A number of cooperative features enable high-speed, twin-belt casting: (1) Each casting belt is slidably supported adjacent to the caster exit pulley for bulge control and enhanced cooling of cast product. (2) Lateral skew steering of each belt provides an effective increase in moving mold length plus a continuity of heat transfer not obtained with prior art belt steering apparatus. (3) The exiting slab is contained and supported downstream from the casting machine to prevent bulging of the shell of the cast product, and (4) spray cooling is incorporated in the exit containment apparatus for secondary cooling of cast product.

  17. Warm exo-Zodi from cool exo-Kuiper belts: the significance of P-R drag and the inference of intervening planets

    E-Print Network [OSTI]

    Kennedy, Grant M

    2015-01-01T23:59:59.000Z

    Poynting-Robertson drag has been considered an ineffective mechanism for delivering dust to regions interior to the cool Kuiper belt analogues seen around other Sun-like stars. This conclusion is however based on the very large contrast in dust optical depth between the parent belt and the interior regions that results from the dominance of collisions over drag in systems with detectable cool belts. Here, we show that the levels of habitable zone dust arising from detectable Kuiper belt analogues can be tens to a few hundreds of times greater than the optical depth in the Solar Zodiacal cloud. Dust enhancements of more than a few tens of `zodi' are expected to hinder future Earth-imaging missions, but relatively few undetectable Kuiper belts result in such levels, particularly around stars older than a few Gyr. Thus, current mid to far-IR photometric surveys have already identified most of the 20-25% of nearby stars where P-R drag from outer belts could seriously impact Earth-imaging. The LBTI should easily d...

  18. A CHANGE IN THE LIGHT CURVE OF KUIPER BELT CONTACT BINARY (139775) 2001 QG{sub 298}

    SciTech Connect (OSTI)

    Lacerda, Pedro, E-mail: p.lacerda@qub.ac.uk [Astrophysics Research Centre, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)

    2011-09-15T23:59:59.000Z

    New observations show that the light curve of Kuiper Belt contact binary (139775) 2001 QG{sub 298} has changed substantially since the first observations in 2003. The 2010 light curve has a peak-to-peak photometric range of {Delta}m{sub 2010} = 0.7 {+-} 0.1 mag, significantly lower than in 2003, {Delta}m{sub 2003} = 1.14 {+-} 0.04 mag. This change is most simply interpreted if 2001 QG{sub 298} has an obliquity near 90{sup 0}. The observed decrease in {Delta}m is caused by a change in viewing geometry, from equator-on in 2003 to nearly 16{sup 0} (the orbital angular distance covered by the object between the observations) off the equator in 2010. The 2003 and 2010 light curves have the same rotation period and appear in phase when shifted by an integer number of full rotations, also consistent with high obliquity. Based on the new 2010 light curve data, we find that 2001 QG{sub 298} has an obliquity of {epsilon} = 90{sup 0} {+-} 30{sup 0}. Current estimates of the intrinsic fraction of contact binaries in the Kuiper Belt are debiased assuming that these objects have randomly oriented spins. If, as 2001 QG2{sub 98}, Kuiper Belt Object contact binaries tend to have large obliquities, a larger correction is required. As a result, the abundance of contact binaries may be larger than previously believed.

  19. HIGH-ALBEDO C-COMPLEX ASTEROIDS IN THE OUTER MAIN BELT: THE NEAR-INFRARED SPECTRA

    SciTech Connect (OSTI)

    Kasuga, Toshihiro [Public Relations Center, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Usui, Fumihiko; Hasegawa, Sunao [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara 252-5210 (Japan); Ootsubo, Takafumi [Astronomical Institute, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578 (Japan); Kuroda, Daisuke, E-mail: toshi.kasuga@nao.ac.jp [Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3037-5 Honjo, Kamogata, Asakuchi, Okayama 719-0232 (Japan)

    2013-07-01T23:59:59.000Z

    Primitive, outer-belt asteroids are generally of low albedo, reflecting carbonaceous compositions like those of CI and CM meteorites. However, a few outer-belt asteroids having high albedos are known, suggesting the presence of unusually reflective surface minerals or, conceivably, even exposed water ice. Here, we present near-infrared (1.1-2.5 {mu}m) spectra of four outer-belt C-complex asteroids with albedos {>=}0.1. We find no absorption features characteristic of water ice (near 1.5 and 2.0 {mu}m) in the objects. Intimate mixture models set limits to the water ice by weight {<=}2%. Asteroids (723) Hammonia and (936) Kunigunde are featureless and have (60%-95%) amorphous Mg pyroxenes that might explain the high albedos. Asteroid (1276) Ucclia also shows a featureless reflection spectrum with (50%-60%) amorphous Mg pyroxenes. Asteroid (1576) Fabiola shows a possible weak, broad absorption band (1.5-2.1 {mu}m). The feature can be reproduced by (80%) amorphous Mg pyroxenes or orthopyroxene (crystalline silicate), either of which is likely to cause its high albedo. We discuss the origin of high-albedo components in primitive asteroids.

  20. A Search for Subkilometer-sized Ordinary Chondrite Like Asteroids in the Main-Belt

    E-Print Network [OSTI]

    Lin, H W; Chen, Y T; Ip, W H; Chang, C K

    2015-01-01T23:59:59.000Z

    The size-dependent effects of asteroids on surface regolith and collisional lifetimes suggest that small asteroids are younger than large asteroids. In this study, we performed multicolor main-belt asteroid (MBA) survey by Subaru telescope/Suprime-Cam to search for subkilometer-sized ordinary chondrite (Q-type) like MBAs. The total survey area was 1.5 deg^2 near ecliptic plane and close to the opposition. We detected 150 MBAs with 4 bands (B, V , R, I) in this survey. The range of absolute magnitude of detected asteroids was between 13 and 22 magnitude, which is equivalent to the size range of kilometer to sub-kilometer diameter in MBAs. From this observation, 75 of 150 MBAs with color uncertainty less than 0.1 were used in the spectral type analysis, and two possible Q-type aster- oids were detected. This mean that the Q-type to S-type ratio in MBAs is 0.5 to 2 (Binzel et al., 2004; Dandy et al., 2003). Therefore, Q-t...

  1. The JCMT Gould Belt Survey: SCUBA-2 observations of circumstellar disks in L 1495

    E-Print Network [OSTI]

    Buckle, J V; Greaves, J; Richer, J S; Matthews, B C; Johnstone, D; Kirk, H; Beaulieu, S F; Berry, D S; Broekhoven-Fiene, H; Currie, M J; Fich, M; Hatchell, J; Jenness, T; Mottram, J C; Nutter, D; Pattle, K; Pineda, J E; Salji, C; Tisi, S; Di Francesco, J; Hogerheijde, M R; Ward-Thompson, D; Bastien, P; Butner, H; Chen, M; Chrysostomou, A; Coude, S; Davis, C J; Duarte-Cabral, A; Friberg, P; Friesen, R; Fuller, G A; Graves, S; Gregson, J; Holland, W; Joncas, G; Kirk, J M; Knee, L B G; Mairs, S; Marsh, K; Moriarty-Schieven, G; Rawlings, J; Rosolowsky, E; Rumble, D; Sadavoy, S; Thomas, H; Tothill, N; Viti, S; White, G J; Wilson, C D; Wouterloot, J; Yates, J; Zhu, M

    2015-01-01T23:59:59.000Z

    We present 850$\\mu$m and 450$\\mu$m data from the JCMT Gould Belt Survey obtained with SCUBA-2 and characterise the dust attributes of Class I, Class II and Class III disk sources in L1495. We detect 23% of the sample at both wavelengths, with the detection rate decreasing through the Classes from I--III. The median disk mask is 1.6$\\times 10^{-3}$M$_{\\odot}$, and only 7% of Class II sources have disk masses larger than 20 Jupiter masses. We detect a higher proportion of disks towards sources with stellar hosts of spectral type K than spectral type M. Class II disks with single stellar hosts of spectral type K have higher masses than those of spectral type M, supporting the hypothesis that higher mass stars have more massive disks. Variations in disk masses calculated at the two wavelengths suggests there may be differences in dust opacity and/or dust temperature between disks with hosts of spectral types K to those with spectral type M.

  2. ON A POSSIBLE SIZE/COLOR RELATIONSHIP IN THE KUIPER BELT

    SciTech Connect (OSTI)

    Pike, R. E.; Kavelaars, J. J., E-mail: repike@uvic.ca [Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6 (Canada)

    2013-10-01T23:59:59.000Z

    Color measurements and albedo distributions introduce non-intuitive observational biases in size-color relationships among Kuiper Belt Objects (KBOs) that cannot be disentangled without a well characterized sample population with systematic photometry. Peixinho et al. report that the form of the KBO color distribution varies with absolute magnitude, H. However, Tegler et al. find that KBO color distributions are a property of object classification. We construct synthetic models of observed KBO colors based on two B-R color distribution scenarios: color distribution dependent on H magnitude (H-Model) and color distribution based on object classification (Class-Model). These synthetic B-R color distributions were modified to account for observational flux biases. We compare our synthetic B-R distributions to the observed ''Hot'' and ''Cold'' detected objects from the Canada-France Ecliptic Plane Survey and the Meudon Multicolor Survey. For both surveys, the Hot population color distribution rejects the H-Model, but is well described by the Class-Model. The Cold objects reject the H-Model, but the Class-Model (while not statistically rejected) also does not provide a compelling match for data. Although we formally reject models where the structure of the color distribution is a strong function of H magnitude, we also do not find that a simple dependence of color distribution on orbit classification is sufficient to describe the color distribution of classical KBOs.

  3. Properties of the Trans-Neptunian Belt: Statistics From the CFHT Survey

    E-Print Network [OSTI]

    Chadwick A. Trujillo; David C. Jewitt; Jane X. Luu

    2001-05-07T23:59:59.000Z

    We present the results of a wide-field survey designed to measure the size, inclination, and radial distributions of Kuiper Belt Objects (KBOs). The survey found 86 KBOs in 73 square degrees observed to limiting red magnitude 23.7 using the Canada-France-Hawaii Telescope and the 12k x 8k CCD Mosaic camera. For the first time, both ecliptic and off-ecliptic fields were examined to more accurately constrain the inclination distribution of the KBOs. The survey data were processed using an automatic moving object detection algorithm, allowing a careful characterization of the biases involved. In this work, we quantify fundamental parameters of the Classical KBOs (CKBOs), the most numerous objects found in our sample, using the new data and a maximum likelihood simulation. Deriving results from our best-fit model, we find that the size distribution follows a differential power law with exponent q = 4.0 (+0.6)(-0.5) (1 sigma, or 68.27% confidence). In addition, the CKBOs inhabit a very thick disk consistent with a Gaussian distribution of inclinations with a Half-Width of i(1/2) = 20 (+6)(-4) deg (1 sigma). We estimate that there are N = 3.8 (+2.0)(-1.5) x 10^4 (1 sigma) CKBOs larger than 100 km in diameter. We also find compelling evidence for an outer edge to the CKBOs at heliocentric distance R = 50 AU.

  4. Simulating the Heterogeneity in Braided Channel Belt Deposits: 2. Examples of Results and Comparison to Natural Deposits

    SciTech Connect (OSTI)

    Guin, Arijit; Ramanathan, Ramya; Ritzi, Robert W.; Dominic, David F.; Lunt, Ian A.; Scheibe, Timothy D.; Freedman, Vicky L.

    2010-04-29T23:59:59.000Z

    In Part 1 of this series we presented a methodology and a code for modeling the hierarchical sedimentary architecture in braided channel belt deposits. Here, in Part 2, the code was used to create a digital model of this architecture, and the corresponding spatial distribution of permeability. The simulated architecture was compared to the real stratal architecture observed in an abandoned channel belt of the Sagavanirktok River, Alaska by Lunt et al. (2004). The comparisons included assessments of similarity which were both qualitative and quantitative. From the qualitative comparisons we conclude that a synthetic deposit created by the code has unit types, at each level, with a geometry which is generally consistent with the geometry of unit types observed in the field. The digital unit types would generally be recognized as representing their counterparts in nature, including cross stratasets, lobate and scroll bar deposits, channel fills, etc. Furthermore, the synthetic deposit has a hierarchical spatial relationship among these units which represents how the unit types are observed in field exposures and in geophysical images. In quantitative comparisons the proportions and the length, width, and height of unit types at different scales, across all levels of the stratal hierarchy compare well between the digital and the natural deposits. A number of important attributes of the channel belt model were shown to be influenced by more than one level within the hierarchy of stratal architecture. First, the high-permeability open-framework gravels percolated at all levels and thus formed preferential flow pathways. Open framework gravels are indeed known to form preferential flow pathways in natural channel belt deposits. The nature of a percolating cluster changed across different levels of the hierarchy of stratal architecture. As a result of this geologic structure, the percolation occurs at proportions of open-framework gravels below the theoretical percolation threshold for random infinite media. Second, when the channel belt model was populated with permeability distributions by lowest-level unit type, the composite permeability semivariogram contained structures that were identifiable at more than one scale, and each of these structures could be directly linked to unit types of different scales existing at different levels within the hierarchy of strata. These collective results are encouraging with respect to our goal that this model be relevant as a base case in future studies for testing ideas in research addressing the upscaling problem in aquifers and reservoirs with multi-scale heterogeneity.

  5. Evaluation of SRAT Sampling Data in Support of a Six Sigma Yellow Belt Process Improvement Project

    SciTech Connect (OSTI)

    Edwards, Thomas B.

    2005-06-01T23:59:59.000Z

    As part of the Six Sigma continuous improvement initiatives at the Defense Waste Processing Facility (DWPF), a Yellow Belt team was formed to evaluate the frequency and types of samples required for the Sludge Receipt and Adjustment Tank (SRAT) receipt in the DWPF. The team asked, via a technical task request, that the Statistical Consulting Section (SCS), in concert with the Immobilization Technology Section (ITS) (both groups within the Savannah River National Laboratory (SRNL)), conduct a statistical review of recent SRAT receipt results to determine if there is enough consistency in these measurements to allow for less frequent sampling. As part of this review process, key decisions made by DWPF Process Engineering that are based upon the SRAT sample measurements are outlined in this report. For a reduction in SRAT sampling to be viable, these decisions must not be overly sensitive to the additional variation that will be introduced as a result of such a reduction. Measurements from samples of SRAT receipt batches 314 through 323 were reviewed as part of this investigation into the frequency of SRAT sampling. The associated acid calculations for these batches were also studied as part of this effort. The results from this investigation showed no indication of a statistically significant relationship between the tank solids and the acid additions for these batches. One would expect that as the tank solids increase there would be a corresponding increase in acid requirements. There was, however, an indication that the predicted reduction/oxidation (REDOX) ratio (the ratio of Fe{sup 2+} to the total Fe in the glass product) that was targeted by the acid calculations based on the SRAT receipt samples for these batches was on average 0.0253 larger than the predicted REDOX based upon Slurry Mix Evaporator (SME) measurements. This is a statistically significant difference (at the 5% significance level), and the study also suggested that the difference was due to predictions of the formate and Mn concentrations in the SME product that were made at the time of the acid addition in the SRAT. For each of these analytes, the SRAT version was statistically different from the SME version (units are moles/kg SME product slurry): the SRAT values were, on average, 0.0914 larger than the SME values for formate and 0.0089 smaller than the SME values for Mn. A look at the signs of the terms corresponding to these two analytes in equation (2) indicates that both of these differences contribute to the calculated REDOX differences between the SRAT and SME product.

  6. Air Dispersion Modeling of Mine Waste in the Southeast Missouri Old Lead Belt

    SciTech Connect (OSTI)

    Abbott, Michael Lehman

    1999-10-01T23:59:59.000Z

    Past lead ore processing conducted in the Southeast Missouri Old Lead Belt since the 1700s has left numerous large areas of lead contamination in elevated piles of fine gravel waste called chat and dried-out tailings ponds. Wind suspension and atmospheric dispersion are known to transport these materials to the surrounding communities where the lead could pose a human health threat through inhalation or ingestion of the deposited contamination. The purpose of this study was to estimate potential wind suspension rates, perform dispersion modeling of the tailings and chat sources, and determine ground surface deposition rates and potential soil concentrations of lead in the surrounding areas. The results can be used to prioritize soil sampling locations, site air monitors, help identify the source of soil lead contamination, and to help develop remediation plans. Numerous, large complex sources in the region were parameterized into 33 area sources with the aid of digital aerial photos, digitized typographic maps, Geographic Information Systems (GIS) software, and site inspections. An AP-42 particulate emission model was used to estimate lower- and upper-bound hourly emission rates using six years of hourly wind speed data obtained from the St. Louis Airport. The emissions model accounted for wind speed, precipitation, source-specific aggregate size, fraction of vegetation cover, and site-specific lead concentrations. An alternative simplified method to calculate emissions from elevated chat piles was developed. The Fugitive Dust Model (FDM) was then used to calculate long-term average and maximum 24-hour deposition rates of lead over a 200 km2 region. Soil concentrations were estimated from modeled deposition rates, time of deposition (80 y) and an assumed surface (0-5.08 cm) mixing depth. Model performance was evaluated by comparing lower- and upper- bound modeled predictions to both air and soil sampling data obtained at two sites. The predicted-to-observed (P/O) ratios calculated using the geometric mean of the lower- and upper-bound modeled concentrations ranged from a low of 0.84 at 300 m to a high of 1.4 at 1800 m, with an average of 1.1. The P/O ratios tended to increase slightly at distances beyond about 1 km. These P/O ratios demonstrate exceptional model performance for the particular sampling transect (location and direction) investigated.

  7. Electron loss rates from the outer radiation belt caused by the filling of the outer plasmasphere: the calm before the storm

    SciTech Connect (OSTI)

    Borovsky, Joseph E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

    2009-01-01T23:59:59.000Z

    Measurements from 7 spacecraft in geosynchronous orbit are analyzed to determine the decay rate of the number density of the outer electron radiation belt prior to the onset of high-speed-stream-driven geomagnetic storms. Superposed-data analysis is used wan(?) a collection of 124 storms. When there is a calm before the storm, the electron number density decays exponentially before the storm with a 3.4-day e-folding time: beginning about 4 days before storm onset, the density decreases from {approx}4x10{sup -4} cm{sup -3} to {approx}1X 10{sup -4} cm{sup -3}. When there is not a calm before the storm, the number-density decay is very smalL The decay in the number density of radiation-belt electrons is believed to be caused by pitch-angle scattering of electrons into the atmospheric loss cone as the outer plasmasphere fills during the calms. While the radiation-belt electron density decreases, the temperature of the electron radiation belt holds approximately constant, indicating that the electron precipitation occurs equally at all energies. Along with the number density decay, the pressure of the outer electron radiation belt decays and the specific entropy increases. From the measured decay rates, the electron flux to the atmosphere is calculated and that flux is 3 orders of magnitude less than thermal fluxes in the magnetosphere, indicating that the radiation-belt pitch-angle scattering is 3 orders weaker than strong diffusion. Energy fluxes into the atmosphere are calculated and found to be insufficient to produce visible airglow.

  8. The dynamical evolution of dwarf planet (136108) Haumea's collisional family: General properties and implications for the trans-Neptunian belt

    E-Print Network [OSTI]

    Lykawka, Patryk Sofia; Mukai, Tadashi; Nakamura, Akiko M

    2011-01-01T23:59:59.000Z

    Recently, the first collisional family was identified in the trans-Neptunian belt. The family consists of Haumea and at least ten other ~100km-sized trans-Neptunian objects (TNOs) located in the region a = 42 - 44.5 AU. In this work, we model the long-term orbital evolution of an ensemble of fragments representing hypothetical post-collision distributions at the time of the family's birth. We consider three distinct scenarios, in which the kinetic energy of dispersed particles were varied such that their mean ejection velocities (veje) were of order 200 m/s, 300 m/s and 400 m/s, respectively. Each simulation considered resulted in collisional families that reproduced that currently observed. The results suggest that 60-75% of the fragments created in the collision will remain in the trans-Neptunian belt, even after 4 Gyr of dynamical evolution. The surviving particles were typically concentrated in wide regions of orbital element space centred on the initial impact location, with their orbits spread across a ...

  9. Agile machining and inspection thrust area team-on-machine probing / compatibility assessment of Parametric Technology Corporation (PTC) pro/CMM DMIS with Zeiss DMISEngine.

    SciTech Connect (OSTI)

    Wade, James Rokwel; Tomlinson, Kurt; Bryce, Edwin Anthony

    2008-09-01T23:59:59.000Z

    The charter goal of the Agile Machining and Inspection Thrust Area Team is to identify technical requirements, within the nuclear weapons complex (NWC), for Agile Machining and Inspection capabilities. During FY 2008, the team identified Parametric Technology Corporation (PTC) Pro/CMM as a software tool for use in off-line programming of probing routines--used for measurement--for machining and turning centers. The probing routine would be used for in-process verification of part geometry. The same Pro/CMM program used on the machine tool could also be employed for program validation / part verification using a coordinate measuring machine (CMM). Funding was provided to determine the compatibility of the Pro/CMM probing program with CMM software (Zeiss DMISEngine).

  10. Survey and discussion of models applicable to the transport and fate thrust area of the Department of Energy Chemical and Biological Nonproliferation Program

    SciTech Connect (OSTI)

    NONE

    1997-09-01T23:59:59.000Z

    The availability and easy production of toxic chemical and biological agents by domestic and international terrorists pose a serious threat to US national security, especially to civilian populations in and around urban areas. To address this threat, the Department of Energy (DOE) has established the Chemical and Biological Nonproliferation Program (CBNP) with the goal of focusing the DOE`s technical resources and expertise on capabilities to deny, deter, mitigate and respond to clandestine releases of chemical and biological agents. With the intent to build on DOE core competencies, the DOE has established six technology thrust areas within the CBNP Program: Biological Information Resources; Point Sensor Systems; Stand-off Detection; Transport and Fate; Decontamination; and Systems Analysis and Integration. The purpose of the Transport and Fate Thrust is to accurately predict the dispersion, concentration and ultimate fate of chemical and biological agents released into the urban and suburban environments and has two major goals: (1) to develop an integrated and validated state-of-the-art atmospheric transport and fate modeling capability for chemical and biological agent releases within the complex urban environment from the regional scale down to building and subway interiors, and (2) to apply this modeling capability in a broad range of simulation case studies of chemical and biological agent release scenarios in suburban, urban and confined (buildings and subways) environments and provide analysis for the incident response user community. Sections of this report discuss subway transport and fate models; buildings interior transport and fate modeling; models for flow and transport around buildings; and local-regional meteorology and dispersion models.

  11. Tracing the sole of a thrust through thick and thin of Salina Group (Upper Silurian): decollement tectonics of Southern Tier, New York

    SciTech Connect (OSTI)

    Beinkafner, K.J.

    1983-09-01T23:59:59.000Z

    The elusive decollement of the Allegheny Plateau is identified by repeat stratigraphic sections on gamma-ray logs, and is mapped along the Southern Tier of New York. The detachment surface is found at three progressively lower stratigraphic levels from east to west within the Salina Group. In the eastern counties, Chemung, Schuyler, Tompkins, and Tioga, Unit F (salt) sections of the Syracuse Formation are vertically repeated two and three times along splays of the main thrust fault residing within Unit F. The three-dimensional dome shape of the Syracuse Formation with planar base supports a thin skinned tectonic origin and negates the primary depositional genesis. The thrust was upward to the northwest, and subsurface faults are associated with folds at the surface. In Steuben and Allegany Counties, the overthickened Unit E sections of the Syracuse Formation again suggest the presence of stacked repeat sections rather than a depocenter. The detachment surface is near the base of Unit E. Mapping indicates that the rocks from the northwest have slid and overridden those to the southeast in the central region. To the west in Chautauqua County, decollement terminates in a structure with northeast strike, here named the Chautauqua anticline. At the northwest edge of the underlying salt beds, the horizontal decollement bends upward into the Upper Silurian and Lower Devonian rocks, eventually dying out in the fissile shales of the Hamilton Group. The Chautauqua anticline forms the structural trap for the targets of recent plays in the Bass Islands and Akron dolostones of the Rondout Group overlying the Salina.

  12. asmari formation zagros: Topics by E-print Network

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

    Cenozoic partitioning of oblique plate convergence in the Zagros fold-and-thrust belt (Iran) Physics Websites Summary: of oblique plate convergence in the Zagros fold-and-thrust...

  13. Generated using version 3.2 of the official AMS LATEX template Distinguishing the cold conveyor belt and sting jet air streams in1

    E-Print Network [OSTI]

    Plant, Robert

    structure of a ShapiroKeyser cyclone during development stage III.38 There are two separate regions usually belt and sting jet air streams in1 an intense extratropical cyclone2 Oscar Martinez-Alvarado, Laura H.martinezalvarado@reading.ac.uk 1 #12;ABSTRACT4 Strong winds equatorwards and rearwards of a cyclone core have often been associated

  14. Reproducing MEES Is Strictly Prohibited MEES 47:11 15 March 2004 The Value Of Extra-Heavy Crude Oil From The Orinoco Belt

    E-Print Network [OSTI]

    O'Donnell, Tom

    Petrolfera del Orinoco) began in 1920 but with disappointing re- sults: the oil discovered was too heavy was made in 1956-57, which led to up to 20,000 b/d of heavy oil put into production, and at this point conjectures, explorations revealed that the Belt mainly contained `heavy' oil according to the present day

  15. Regional-Scale Assessment of Nitrous Oxide Emissions within the US Corn Belt: The Impact of Precipitation and Agricultural Drainage on Indirect Emissions

    E-Print Network [OSTI]

    Minnesota, University of

    Regional-Scale Assessment of Nitrous Oxide Emissions within the US Corn Belt: The Impact of Precipitation and Agricultural Drainage on Indirect Emissions Tim Griffis1, Xuhui Lee2, John Baker3, Peter, but mitigation strategies have been limited by the large uncertainties in both direct and indirect emission

  16. Structural and kinematic analysis of the Early Paleozoic Ondor Sum-Hongqi mlange belt, eastern part of the Altaids (CAOB) in Inner Mongolia, China

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    part of the Altaids (CAOB) in Inner Mongolia, China Guanzhong Shi a,b Michel Faureb , Bei Xua,* , Pan mlange and a magmatic arc that form the main elements of the Southern Orogen Belt of Inner Mongolia of the mlange conducted in the Hongqi and Ondor Sum areas (western Inner Mongolia) shows two phrases of ductile

  17. First Results of a Full Scaled Passive Treatment System for High Metal Concentration AMD at the Iberian Pyrite Belt, SW Spain

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    at the Iberian Pyrite Belt, SW Spain M. A. Caraballo a), F. Macías a), T. S. Rötting b), J. M. Nieto a), C. Ayora c) a) Department of Geology, University of Huelva. Avda. Fuerzas Armadas s/n, 21071 Huelva, Spain "Jaume Almera" CSIC, Lluís Solé y Sabarís, s/n. Barcelona 08028, Spain. Abstract Acidity load

  18. Health assessment for Oronogo-Duenweg Mining Belt, Jasper County, Missouri, Region 7. CERCLIS No. MDD980686281. Preliminary report

    SciTech Connect (OSTI)

    Not Available

    1990-06-18T23:59:59.000Z

    The Oronogo-Duenweg Mining Belt site, Jasper County, Missouri, has been proposed by the U.S. Environmental Protection Agency (EPA) for inclusion on the National Priorities List (NPL). Referred to as the Missouri portion of the Tri-State (Missouri, Kansas, and Oklahoma) Mining District, the site comprises approximately 20 square miles and was the location of the most concentrated mining effort in the Tri-State District. As a result of commercial zinc and lead mining operations that occurred from about 1850 until the late 1960s, shallow groundwater, surface water, sediment, and surface soil are contaminated with heavy metals (zinc, lead, cadmium, and nickel). Municipalities in the area use both surface water and a deep aquifer for water supplies; individual households outside these centers rely on a shallow aquifer for water. Based upon information reviewed, the Agency for Toxic Substances and Disease Registry (ATSDR) has concluded that this site is of public health concern because of the risk to human health resulting from probable exposure to hazardous substances at concentrations that may result in adverse human health effects.

  19. Stellar Parameters for HD 69830, a Nearby Star with Three Neptune Mass Planets and an Asteroid Belt

    E-Print Network [OSTI]

    Tanner, Angelle; von Braun, Kaspar; Kane, Stephen; Brewer, John M; Farrington, Chris; van Belle, Gerard T; Beichman, Charles A; Fischer, Debra; Brummelaar, Theo A ten; McAlister, Harold A; Schaefer, Gail

    2014-01-01T23:59:59.000Z

    We used the CHARA Array to directly measure the angular diameter of HD 69830, home to three Neptune mass planets and an asteroid belt. Our measurement of 0.674+/-0.014 milli-arcseconds for the limb-darkened angular diameter of this star leads to a physical radius of R$_*$ = 0.9058$\\pm$0.0190 R\\sun and luminosity of L* = 0.622+/-0.014 Lsun when combined with a fit to the spectral energy distribution of the star. Placing these observed values on an Hertzsprung-Russel (HR) diagram along with stellar evolution isochrones produces an age of 10.6+/-4 Gyr and mass of 0.863$\\pm$0.043 M\\sun. We use archival optical echelle spectra of HD 69830 along with an iterative spectral fitting technique to measure the iron abundance ([Fe/H]=-0.04+/-0.03), effective temperature (5385+/-44 K) and surface gravity (log g = 4.49+/-0.06). We use these new values for the temperature and luminosity to calculate a more precise age of 7.5+/-Gyr. Applying the values of stellar luminosity and radius to recent models on the optimistic locati...

  20. A Summary of Coupled, Uncoupled, and Hybrid Tectonic Models for the Yakima Fold Belt--Topical Report

    SciTech Connect (OSTI)

    Chamness, Michele A.; Winsor, Kelsey; Unwin, Stephen D.

    2012-08-01T23:59:59.000Z

    This document is one in a series of topical reports compiled by the Pacific Northwest National Laboratory to summarize technical information on selected topics important to the performance of a probabilistic seismic hazard analysis of the Hanford Site. The purpose of this report is to summarize the range of opinions and supporting information expressed by the expert community regarding whether a coupled or uncoupled model, or a combination of both, best represents structures in the Yakima Fold Belt. This issue was assessed to have a high level of contention with up to moderate potential for impact on the hazard estimate. This report defines the alternative conceptual models relevant to this technical issue and the arguments and data that support those models. It provides a brief description of the technical issue and principal uncertainties; a general overview on the nature of the technical issue, along with alternative conceptual models, supporting arguments and information, and uncertainties; and finally, suggests some possible approaches for reducing uncertainties regarding this issue.

  1. A Summary of Information on the Behavior of the Yakima Fold Belt as a Structural Entity -- Topical Report

    SciTech Connect (OSTI)

    Last, George V.; Winsor, Kelsey; Unwin, Stephen D.

    2012-08-01T23:59:59.000Z

    This document is one in a series of topical reports compiled by the Pacific Northwest National Laboratory to summarize technical information on selected topics important to the performance of a probabilistic seismic hazard analysis (PSHA) of the Hanford Site. The purpose of this report is to summarize available data and analyses relevant to the Yakima Fold Belt (YFB) that may bear on the question of whether or not the YFB behaves as a single seismotectonic province in which activity along one fold structure is representative of behavior along all other fold structures. This topic has met with a fairly high level of contention in the expert community and has the potential to result in significant impacts on an evaluation of seismic hazard at the Hanford Site. This report defines the relevant alternative conceptual models relevant to this technical issue and the arguments and data that support those models. It provides a brief description of the technical issue and principal uncertainties; a general overview on the nature of the technical issue, along with alternative conceptual models, supporting arguments and information, and uncertainties; and finally, it suggests some possible approaches for reducing uncertainties regarding this issue.

  2. LANSCE-NS thrust areas

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The Energy Materials CenterTechnologiesTechnologies |ContactsNeutron

  3. Thrusts in High Performance Computing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in2, 2003 (Next ReleaseThomasTheories |20 -18Home »in

  4. Structural analysis and geologic history of the Cedar Fourche area, Lake Ouachita, Arkansas

    E-Print Network [OSTI]

    Tucker, James William

    1980-01-01T23:59:59.000Z

    sediments to the trough-shaped geosyncl1ne to the north. The Early Paleozoic basinal shales, siltstones, sandstones, and cherts accumulated to a maximum total thickness of three thousand meters over a period of some 150 million years. The Ouach1ta depos1... Geology TABLE OF CONTENTS Page vi 6 9 11 STRATIGRAPHY introduction Ordovician System Collier Shale Crystal Mountain Sandstone . Mazarn Shale Blakely Sandstone Womble Shale Bi gfork Chert and Polk Creek Shale Devonian-Mississippian Systems...

  5. The Investigation on Fibrous Veins and Their Host from Mt. Ida, Ouachita Mountains, Arkansas

    E-Print Network [OSTI]

    Chung, Jae Won

    2004-09-30T23:59:59.000Z

    I have studied syntectonic veins from shales and coarse calcareous sands of the Ordovician Womble Shale, Benton uplift, Arkansas. All veins are composed of calcite with minor quartz and trace feldspar and dolomite or high-Mg calcite in the coarser...

  6. 3D Structural Analysis of the Benton Uplift, Ouachita Orogen, Arkansas

    E-Print Network [OSTI]

    Johnson, Harold Everett

    2012-02-14T23:59:59.000Z

    with glycol vapor, causing a shift in the smectite peaks. The location of the smectite peaks identify samples that contain between 10-90% smectite [?rodo?, 1980; Hower, 1981]. The samples that contain more than 10% smectite indicate the lower diagenetic... in the illite/smectite ratio using the technique of ?rodo? [1980] and Hower [1981]. All of these rocks therefore must have experienced temperatures higher than ~ 100?C according to Merriman and Peacor [1999]. The IC d(001) fine clay values (Figures 9A and 10...

  7. Spatial patterns of ice storm disturbance in the forested landscape of Ouachita Mountains, Arkansas and Oklahoma

    E-Print Network [OSTI]

    Isaacs, Rachel E.

    2009-05-15T23:59:59.000Z

    Large-extent ice storms have received relatively little attention from researchers. This research investigates the effects of abiotic and biotic factors on the spatial patterns of ice storm disturbance on a forested landscape. This investigation...

  8. Tau-p analysis of large-offset seismic data from the PASSCAL Ouachita Seismic Experiment

    E-Print Network [OSTI]

    Lizarralde, Daniel

    1990-01-01T23:59:59.000Z

    landmass bordered by an island-arc system (Briggs and Roeder, 1975; Whickham, et al, 1976; Nelson, et al, 1982; Thomas, 1985; Kruger and Keller, 1986). A prograding clastic wedge, filling the Black Warrior basin of Alabama from the south and the deep...

  9. Structural analysis and geologic history of the Cedar Fourche area, Lake Ouachita, Arkansas

    E-Print Network [OSTI]

    Tucker, James William

    1980-01-01T23:59:59.000Z

    sediments to the trough-shaped geosyncl1ne to the north. The Early Paleozoic basinal shales, siltstones, sandstones, and cherts accumulated to a maximum total thickness of three thousand meters over a period of some 150 million years. The Ouach1ta depos1... Geology TABLE OF CONTENTS Page vi 6 9 11 STRATIGRAPHY introduction Ordovician System Collier Shale Crystal Mountain Sandstone . Mazarn Shale Blakely Sandstone Womble Shale Bi gfork Chert and Polk Creek Shale Devonian-Mississippian Systems...

  10. The Investigation on Fibrous Veins and Their Host from Mt. Ida, Ouachita Mountains, Arkansas

    E-Print Network [OSTI]

    Chung, Jae Won

    2004-09-30T23:59:59.000Z

    of the host is given by: ?* = 3b/(16kBV0B) (2) where b is the radius of rock sphere containing one vein or spherical crystal, ?* is the critical value of surrounding host rock viscosity, k is a constant in kinetic law for precipitation/dissolution... goal to test some of these implications. 7 2. GEOLOGY Samples of fibrous veins were collected from Paleozoic Womble Shale around Mt. Ida, Arkansas (Fig. 2). The study area lies within the Benton Uplift of eastern Arkansas. The Benton Uplift...

  11. LANL* V1.0: a radiation belt drift shell model suitable for real-time and reanalysis applications

    SciTech Connect (OSTI)

    Koller, Josep [Los Alamos National Laboratory; Reeves, Geoffrey D [Los Alamos National Laboratory; Friedel, Reiner H W [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    Space weather modeling, forecasts, and predictions, especially for the radiation belts in the inner magnetosphere, require detailed information about the Earth's magnetic field. Results depend on the magnetic field model and the L* (pron. L-star) values which are used to describe particle drift shells. Space wather models require integrating particle motions along trajectories that encircle the Earth. Numerical integration typically takes on the order of 10{sup 5} calls to a magnetic field model which makes the L* calculations very slow, in particular when using a dynamic and more accurate magnetic field model. Researchers currently tend to pick simplistic models over more accurate ones but also risking large inaccuracies and even wrong conclusions. For example, magnetic field models affect the calculation of electron phase space density by applying adiabatic invariants including the drift shell value L*. We present here a new method using a surrogate model based on a neural network technique to replace the time consuming L* calculations made with modern magnetic field models. The advantage of surrogate models (or meta-models) is that they can compute the same output in a fraction of the time while adding only a marginal error. Our drift shell model LANL* (Los Alamos National Lab L-star) is based on L* calculation using the TSK03 model. The surrogate model has currently been tested and validated only for geosynchronous regions but the method is generally applicable to any satellite orbit. Computations with the new model are several million times faster compared to the standard integration method while adding less than 1% error. Currently, real-time applications for forecasting and even nowcasting inner magnetospheric space weather is limited partly due to the long computing time of accurate L* values. Without them, real-time applications are limited in accuracy. Reanalysis application of past conditions in the inner magnetosphere are used to understand physical processes and their effect. Without sufficiently accurate L* values, the interpretation of reanalysis results becomes difficult and uncertain. However, with a method that can calculate accurate L* values orders of magnitude faster, analyzing whole solar cycles worth of data suddenly becomes feasible.

  12. PSW1-C0.2-D0.1-E2.4-F0.1-PSRB2-0021-02 SOLAR WIND-DRIVEN ELECTRON RADIATION BELT

    E-Print Network [OSTI]

    linear filters, to remove unwanted "col- ored noise" from solar wind and radiation belt electron data output might be achieved with: 1) additional simultaneous solar wind inputs; 2) more sophisticated quality of solar, solar-wind, and magnetospheric data that has become available in recent years has led

  13. Facile synthesis, phase transition, optical switching and oxidation resistance properties of belt-like VO{sub 2}(A) and VO{sub 2}(M) with a rectangular cross section

    SciTech Connect (OSTI)

    Zhang, Yifu; Huang, Yanfen; Zhang, Juecheng; Wu, Weibing; Niu, Fei; Zhong, Yalan [College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 (China)] [College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 (China); Liu, Xinghai, E-mail: liuxh@whu.edu.cn [School of Printing and Packaging, Wuhan University, Wuhan 430079 (China)] [School of Printing and Packaging, Wuhan University, Wuhan 430079 (China); Liu, Xin [School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China)] [School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China); Huang, Chi, E-mail: chihuang@whu.edu.cn [College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 (China)] [College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 (China)

    2012-08-15T23:59:59.000Z

    Highlights: ? Belt-like VO{sub 2}(A) with a rectangular cross section was synthesized. ? The formation mechanism of belt-like VO{sub 2}(A) was proposed. ? Belt-like VO{sub 2}(M) was prepared by the irreversible transformation of VO{sub 2}(A). ? VO{sub 2}(A) and VO{sub 2}(M) can be used as the optical switching materials. ? VO{sub 2}(A) and VO{sub 2}(M) have good oxidation resistance below 400 C in air. -- Abstract: Belt-like VO{sub 2}(A) with a rectangular cross section (VA-RCS) was successfully synthesized using V{sub 2}O{sub 5}, H{sub 2}C{sub 2}O{sub 4}2H{sub 2}O and H{sub 2}O as the starting materials by a facile hydrothermal approach. Some synthetic parameters, such as, the reaction time, reaction temperature and concentration of H{sub 2}C{sub 2}O{sub 4}2H{sub 2}O, were systematically investigated to control the fabrication of belt-like VA-RCS. The formation mechanism of belt-like VA-RCS was proposed. Subsequently, belt-like VO{sub 2}(M) with a rectangular cross section (VM-RCS) was prepared by the irreversible transformation of VA-RCS at 700 C for 2 h under the inert atmosphere. The phase transition temperature (T{sub c}) of VA-RCS and VM-RCS was evaluated by DSC test. The optical switching properties of VA-RCS and VM-RCS were studied by the variable-temperature infrared spectra, and it was found that the as-obtained VA-RCS and VM-RCS could be used as the optical switching materials. Furthermore, the oxidation resistance properties of VA-RCS and VM-RCS were investigated by TGA, indicating that they have good thermal stability and oxidation resistance below 400 C in air.

  14. Superfund Record of Decision (EPA Region 7): Oronogo-Duenweg Mining Belt Site, Operable Unit 4, Jasper County, MO, July 29, 1998

    SciTech Connect (OSTI)

    NONE

    1998-09-01T23:59:59.000Z

    The US Environmental Protection Agency (EPA) has prepared this decision document to present the selected remedial action for ground water at the Oronogo/Duenweg Mining Belt Site located in Jasper County, Missouri. This selected remedy deals with providing safe drinking water supplies to residents currently consuming ground water contaminated with metals. The major components of selected remedy are: Support to Public Water Supply District No. 3 in the Oronogo/Duenweg Designated Area (DA); Extension of existing public water lines in the Oronogo/Duenweg DA; Extension of existing public water lines in the Irons Gates Extension DA; Installation of point-of-use treatment units to homes not accessible to public water; A maintenance program for the point-of-use treatment units; A monitoring program for threatened homes and the point-of-use treatment units; and Institutional controls to regulate future uses of the contaminated shallow aquifer.

  15. The JCMT Gould Belt Survey: First results from the SCUBA-2 observations of the Ophiuchus molecular cloud and a virial analysis of its prestellar core population

    E-Print Network [OSTI]

    Pattle, K; Kirk, J M; White, G J; Drabek-Maunder, E; Buckle, J; Beaulieu, S F; Berry, D S; Broekhoven-Fiene, H; Currie, M J; Fich, M; Hatchell, J; Kirk, H; Jenness, T; Johnstone, D; Mottram, J C; Nutter, D; Pineda, J E; Quinn, C; Salji, C; Tisi, S; Walker-Smith, S; Di Francesco, J; Hogerheijde, M R; Andr, Ph; Bastien, P; Bresnahan, D; Butner, H; Chen, M; Chrysostomou, A; Coude, S; Davis, C J; Duarte-Cabral, A; Fiege, J; Friberg, P; Friesen, R; Fuller, G A; Graves, S; Greaves, J; Gregson, J; Griffin, M J; Holland, W; Joncas, G; Knee, L B G; Knyves, V; Mairs, S; Marsh, K; Matthews, B C; Moriarty-Schieven, G; Rawlings, J; Richer, J; Robertson, D; Rosolowsky, E; Rumble, D; Sadavoy, S; Spinoglio, L; Thomas, H; Tothill, N; Viti, S; Wouterloot, J; Yates, J; Zhu, M

    2015-01-01T23:59:59.000Z

    In this paper we present the first observations of the Ophiuchus molecular cloud performed as part of the James Clerk Maxwell Telescope (JCMT) Gould Belt Survey (GBS) with the SCUBA-2 instrument. We demonstrate methods for combining these data with previous HARP CO, Herschel, and IRAM N$_{2}$H$^{+}$ observations in order to accurately quantify the properties of the SCUBA-2 sources in Ophiuchus. We produce a catalogue of all of the sources found by SCUBA-2. We separate these into protostars and starless cores. We list all of the starless cores and perform a full virial analysis, including external pressure. This is the first time that external pressure has been included in this level of detail. We find that the majority of our cores are either bound or virialised. Gravitational energy and external pressure are on average of a similar order of magnitude, but with some variation from region to region. We find that cores in the Oph A region are gravitationally bound prestellar cores, while cores in the Oph C and ...

  16. "TNOs are Cool": A survey of the trans-Neptunian region X. Analysis of classical Kuiper belt objects from Herschel and Spitzer observations

    E-Print Network [OSTI]

    Vilenius, E; Mller, T; Mommert, M; Santos-Sanz, P; Pl, A; Stansberry, J; Mueller, M; Peixinho, N; Lellouch, E; Fornasier, S; Delsanti, A; Thirouin, A; Ortiz, J L; Duffard, R; Perna, D; Henry, F

    2014-01-01T23:59:59.000Z

    The classical Kuiper belt contains objects both from a low-inclination, presumably primordial, distribution and from a high-inclination dynamically excited population. Based on a sample of classical TNOs with observations at thermal wavelengths we determine radiometric sizes, geometric albedos and thermal beaming factors as well as study sample properties of dynamically hot and cold classicals. Observations near the thermal peak of TNOs using infra-red space telescopes are combined with optical magnitudes using the radiometric technique with near-Earth asteroid thermal model (NEATM). We have determined three-band flux densities from Herschel/PACS observations at 70.0, 100.0 and 160.0 $\\mu$m and Spitzer/MIPS at 23.68 and 71.42 $\\mu$m when available. We have analysed 18 classical TNOs with previously unpublished data and re-analysed previously published targets with updated data reduction to determine their sizes and geometric albedos as well as beaming factors when data quality allows. We have combined these s...

  17. Paleogene Larger Benthic Foraminiferal Stratigraphy and Facies distribution: implications for tectonostratigraphic evolution of the Kohat Basin, Potwar Basin and the Trans Indus Ranges (TIR) northwest Pakistan

    E-Print Network [OSTI]

    Ahmad, Sajjad

    2011-11-24T23:59:59.000Z

    Thick Paleogene sequences occur in the southern deformed fold and thrust belt of the Himalayas. In this thesis I describe detailed litho- and biostratigraphy from ten key stratigraphic sections in the Kohat Basin, the ...

  18. Tectonic Evolution of the Contaya Arch Ucyali Basin, Peru

    E-Print Network [OSTI]

    Navarro Zelasco, Luis

    2011-08-08T23:59:59.000Z

    The Contaya arch is an elongated topographic high that divides the Huallaga, Maranon and Ucayali basins in the Peruvian Amazonian plain. Its position well into the foreland basin and well inland from the main Andean thrust belt has proven...

  19. Relations between hinterland and foreland shortening: Sevier orogeny, central North American Cordillera

    E-Print Network [OSTI]

    Taylor, Wanda J.; Bartley, John M.; Martin, Mark W.; Geissman, John W.; Walker, J. Douglas; Armstrong, Phillip A.; Fryxell, Joan E.

    2000-12-01T23:59:59.000Z

    The tectonic relations between foreland and hinterland deformation in noncollisional orogens are critical to understanding the overall development of orogens. The classic central Cordilleran foreland fold-and-thrust belt in the United States (Late...

  20. Fuel Optimal Thrust Allocation in Dynamic Positioning

    E-Print Network [OSTI]

    Johansen, Tor Arne

    as a standard QP-problem by recalculation of its cost function weights based on linear and quadratic model operations e.g; pipelay operations, dredging, crane barge operations, station keeping, drilling, anchor

  1. Thrust Area 2 Monopropellant-Powered Actuation

    E-Print Network [OSTI]

    Barth, Eric J.

    ·Products are H2O and O2 Centralized Direct Injection ·Equivalent to air compressor (boxed in red (908 o F) Energetic Properties of Hydrogen Peroxide System Actuation Potential (kJ-kW/kg2 ) Definition

  2. piggyback basin 2000a 1971 frontal thrust

    E-Print Network [OSTI]

    Chen, Wen-Shan

    : Petrol. Geol. Taiwan, 28, 59-96. Hung, J.H., and Suppe, J. (2000) Subsurface geometry of the Chelungpu.Y. (1963) San-I overthrust : Petrol. Geol. Taiwan, 2, p.1-20. Ruff, L.J. (1992) Asperity distributions

  3. LANSCE | Lujan Center | Science Thrust Areas

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

    Primary Instruments and Contacts: Surfaces and Interfaces Rex Hjelm - Principal Contact Neutron reflectivity and small angle scattering probe interfaces, surfaces, defects, and...

  4. Quantifying landscape pattern in the Ouachita National Forest: an ecological application of GIS-based spatial analysis and modeling

    E-Print Network [OSTI]

    Meyer, Delayne Marie

    1998-01-01T23:59:59.000Z

    to changing the structure and function of these forested landscapes has not been adequately analyzed or considered in land management and planning. Consideration of landscape ecological principles should be a crucial part of land management and planning within...

  5. The Thermal Evolution of the Ouachita Orogen, Arkansas and Oklahoma from Quartz-Calcite Thermometry and Fluid Inclusion Thermobarometry

    E-Print Network [OSTI]

    Piper, Jennifer

    2012-02-14T23:59:59.000Z

    . The lack of isotopic difference between host and vein suggests that the host oxygen determined that of the veins. This in turn suggests that the fluid in the rocks did not change regionally. The vitrinite reflectance/temperature of the host rocks increases...

  6. Quantifying landscape pattern in the Ouachita National Forest: an ecological application of GIS-based spatial analysis and modeling

    E-Print Network [OSTI]

    Meyer, Delayne Marie

    1998-01-01T23:59:59.000Z

    Indices. V SUMMARY. 56 63 68 LITERATURE CITED. 71 APPENDIX A. APPENDIX B. 76 80 APPENDIX C 90 VITA 106 LIST OF FIGURES FIGURE Page 1 Landscapeecologicalperspectiveandclassificationof landscapes. . . . . . . . . 10 2 Correlation between patch...). 21 Mosaicst Land Resistance, Grain Size, k Landscape Change Land mosaics are entire regions made up of landscapes and entire landscapes made up of local ecosystems. Landscape elements, patches, corridors, and matrix, are what provide the landscape...

  7. Replace V-Belts with Notched or Synchronous Belt Drives

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin ofEnergy at Waste-to-Energy using Fues Cells Webinar, July0 Replace

  8. Geochemical, oxygen, and neodymium isotope compositions of metasediments from the Abitibi greenstone belt and Pontiac Subprovince, Canada: Evidence for ancient crust and Archean terrane juxtaposition

    SciTech Connect (OSTI)

    Feng, R.; Kerrich, R. (Univ. of Saskatchewan, Saskatoon (Canada)); Maas, R. (Curtin Univ. of Technology, Perth (Australia))

    1993-02-01T23:59:59.000Z

    The Abitibi greenstone belt (AGB) and Pontiac Subprovince (PS) in the southwestern Superior Province are adjacent greenstone-plutonic and metasedimentary-dominated terranes, respectively, separated by a major fault zone. Metasediments from these two contrasting terranes are compared in terms of major- and trace-element and O- and Nd-isotope compositions, and detrital zircon ages. The following two compositional populations of metasediments are present in the low-grade, Abitibi southern volcanic zone: (1) a mafic-element-enriched population (MEP) characterized by flat, depleted REE patterns; enhanced Mg, Cr, Co, Ni, and Sc; low-incompatible-element contents; and minor or absent normalized negative troughs at Nb, Ta, and Ti; and (2) a low-mafic-element population (LMEP) featuring LREE-enriched patterns; enhanced Rb, Cs, Ba, Th, and U contents; and pronounced normalized negative troughs at Nb, Ta, and Ti. These geochemical features are interpreted to indicate that the MEP sediments were derived from an ultramafic- and mafic-dominated oceanic provenance, whereas the LMEP sediments represent mixtures of mafic and felsic are source rocks. The PS metasediments are essentially indistinguishable from Abitibi LMEP on the basis of major-element and transition metal abundances, suggesting comparable types of source rocks and degrees of maturity, but are distinct in terms of some trace elements and O-isotope compositions. The Pontiac metasediments are depleted in [sup 18]O and enriched in Cs, Ba, Pb, Th, U, Nb, Ta, Hf, Zr, and total REE and also have higher ratios of Rb/K, Cs/Rb, Ba/Rb, Ta/Nb, Th/La, and Ba/La relative to the Abitibi LMEP. Two subtypes of REE patterns have been identified in PS metasediments. The first subtype is interpreted to be derived from provenances of mixed mafic and felsic volcanic rocks, whereas the Eu-depleted type has features that are typical of post-Archean sediments or Archean K-rich granites and volcanic equivalents. 100 refs., 9 figs., 4 tabs.

  9. Mesozoic and Cenozoic structural geology of the CP Hills, Nevada Test Site, Nye County, Nevada; and regional implications

    SciTech Connect (OSTI)

    Caskey, S.J. [Nevada Univ., Reno, NV (United States)

    1991-08-01T23:59:59.000Z

    Detailed mapping and structural analysis of upper Proterozoic and Paleozoic rocks in the CP Hills of the Nevada Test Site, together with analysis of published maps and cross sections and a reconnaissance of regional structural relations indicate that the CP thrust of Barnes and Poole (1968) actually comprises two separate, oppositely verging Mesozoic thrust systems: (1) the west-vergent CP thrust which is well exposed in the CP Hills and at Mine Mountain, and (2) the east-vergent Belted Range thrust located northwest of Yucca Flat. West-vergence of the CP thrust is indicated by large scale west-vergent recumbent folds in both its hangingwall and footwall and by the fact that the CP thrust ramps up section through hangingwall strata toward the northwest. Regional structural relations indicate that the CP thrust forms part of a narrow sigmoidal belt of west-vergent folding and thrusting traceable for over 180 km along strike. The Belted Range thrust represents earlier Mesozoic deformation that was probably related to the Last Chance thrust system in southeastern California, as suggested by earlier workers. A pre-Tertiary reconstruction of the Cordilleran fold and thrust belt in the region between the NTS and the Las Vegas Range bears a close resemblance to other regions of the Cordillera and has important implications for the development of hinterland-vergent deformation as well as for the probable magnitude of Tertiary extension north of Las Vegas Valley. Subsequent to Mesozoic deformation, the CP Hills were disrupted by at least two episodes of Tertiary extensional deformation: (1) an earlier episode represented by pre-middle Miocene low-angle normal faults, and (2) a later, post-11 Ma episode of high-angle normal faulting. Both episodes of extension were related to regional deformation, the latter of which has resulted in the present basin and range topography of the NTS region.

  10. Petrology and hydrocarbon reservoir potential of subsurface Pottsville (Pennsylvanian) sandstones, Black Warrior basin, Mississippi

    SciTech Connect (OSTI)

    Beard, R.H.; Maylan, M.A.

    1987-09-01T23:59:59.000Z

    The Black Warrior basin of Mississippi and Alabama is a Paleozoic foreland basin developed between the North American craton and the Appalachian and Ouachita orogenic belts. The basin fill consists of a middle Mississippian to Lower Pennsylvanian clastic wedge, transitional in character, between Appalachian molasse and Ouachita flysch. Pottsville (Pennsylvanian) sandstones, shales, coals, and thin conglomerates make up the greater part of the wedge, thickening to 11,000 ft in northeast Mississippi. Although the outcropping and near-surface Pottsville is economically importance as a source of coal in Alabama, only minor amounts of gas have been derived from the subsurface Pottsville of Mississippi (Clay and Monroe Counties). Production from the Black Warrior basin, mostly gas, is chiefly from Chesterian (Mississippian) sands and limestones in the shallower part of the basin, principally in Monroe County. Cores of Pottsville sandstones from four wells in the deeper part of the Black Warrior basin (Calhoun and Choctaw Counties) have been examined to determine their petrography, diagenetic history, and reservoir quality. This part of the basin is relatively unexplored, and the primary objective of the study was to determine if suitable hydrocarbon reservoirs are present.

  11. Effects of seed production, seedbed condition, and overstory basal area on the establishment of shortleaf pine seedlings in the Ouachita Mountains. Forest Service research paper

    SciTech Connect (OSTI)

    Shelton, M.G.

    1995-09-01T23:59:59.000Z

    First-year seedlings establishment was determined across an array of seedbed conditions and overstory basal areas in stands of shortleaf pine (Pinus echinata Mill.) and hardwoods following the initial harvest implementing uneven-aged silviculture. Results indicate the importance of regulating overstory basal area in the application of uneven-aged silviculture in stands featuring short-leaf pine. When total overstory basal area was within the guidelines for uneven-aged stands (45 to 75 sq.ft.acre), seedbeds of mineral soil and partial and undisturbed litter resulted in ample regeneration even with seed crops that were slightly below regional averages. Composition of the overstory basal area apparently did not strongly affect initial seedling establishment in areas having sparse ground vegetation and should not be extended to longer time periods or other conditions.

  12. Development of understory vegetation in pine and pine-hardwood shelterwood stands in the Ouachita mountains: The first 3 years. Forest Service research paper

    SciTech Connect (OSTI)

    Shelton, M.G.

    1997-09-01T23:59:59.000Z

    The shelterwood reproduction cutting method using two overstory compositions (a pine basal area of 30 square feet per acre with and without 15 square feet per acre of hardwoods) and two methods of submerchantable hardwood control (chain-saw felling with and without stump-applied herbicide) was tested in a 2x2 factorial, split-plot design with four randomized complete blocks. Total coverage of understory vegetation after 3 years was greater in the pine overstory treatment (68 percent) than in the pine-hardwood overstory treatment (46 percent) and was slightly greater for manual than chemical hardwood control (60 versus 55 percent). Results indicate that 15 square feet per acre of scattered hardwoods can be retained through at least 3 years after harvest, but additional monitoring will be needed to determine the long-term success of reproduction. Early results suggest that the herbicide treatment was not justified in the stand and site conditions tested in this study; contributing factors were the abundant pine seed production and low levels of competing vegetation.

  13. Radiation Belt Storm Probes Ion Composition Experiment

    E-Print Network [OSTI]

    current produced the "bays" (decreases in the ground-level geomagnetic field) measured in magnetogram current" around Earth and its association with geomagnetic storms began in the early days of the twentieth Storm Probes (RBSP) spacecraft is the magnetosphere ring current instrument that will provide data

  14. Belt Vision Inspection System | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureCommentsEnergy Christopher Smith,Commerce |Committee |Imperial CBelt

  15. CD-2: Orogenic Belt | 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:EzfeedflagBiomassSustainable andBucoda,BurkeNebraska: EnergyByronTechnologiesCD-2: Orogenic

  16. Corn Belt Energy Corporation | 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 EnergyInnovationinConcentratingEnergyCoosa Valley Electric Coop

  17. SunBelt Biofuels | 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 PvtStratosolar Jump to: navigation, searchNewOpenSumpter,Sun CitySun

  18. 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...

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

    E-Print Network [OSTI]

    Wells, Rachel Kristen

    2011-02-22T23:59:59.000Z

    -grain junctions, and interpenetrating boundaries. Porosity rises to 6% from calcite veins. In coarse-grained calcite, trails of iv voids follow twin boundaries, and voids occur at twin-twin and twin-grain boundary intersections... contains calcite and shale. The different strengths of calcite (Rutter, 1995; Brodie and Rutter, 2000a) and dolomite (Davis et al., 2008; Delle Piane et al., 2008) and quartz (Griggs, 1967; Brodie and Rutter, 2000b) under similar conditions could...

  20. Nanobalance: An automated interferometric balance for micro-thrust measurement

    E-Print Network [OSTI]

    Canuto, Enrico

    Abruzzi 24, 10129 Torino, Italy b Istituto di Metrologia ``G. Colonnetti,'' Strada delle Cacce 73, 10135

  1. RESEARCH ARTICLE Evaluation of thrust measurement techniques for dielectric

    E-Print Network [OSTI]

    Roy, Subrata

    with the electric field resulting in an electro-hydrodynamic body force act- ing on the working gas resulting in various aerodynamic applications such as turbines blades (Ramakumar and Jacob 2005; Rizzetta and Visbal

  2. Hybrid methods for interplanetary low-thrust trajectory optimization

    E-Print Network [OSTI]

    Aroonwilairut, Krisada

    2002-01-01T23:59:59.000Z

    Fiiral Con rli fiona The initial and f!nal cond!tin!zs are given in Table 2-2. Table 2-2: Irutial and Fmal Conditions of P rample 2-I initial time (r, ) Final time (tr) pir, Optimal Control Formulation The objective function for a minimum...

  3. Thrust Measurements Using Laser Interferometry Edward A. Cubbin

    E-Print Network [OSTI]

    Choueiri, Edgar

    a two-sensor laser interferometer, with VIEW Data Acquisition Card . . . . . . . . . . . . . . . 20 2.3.2 Photo Detectors

  4. Optimum Low Thrust Elliptic Orbit Transfer using Numerical Averaging

    E-Print Network [OSTI]

    Tarzi, Zahi

    2012-01-01T23:59:59.000Z

    perturbations due to solar radiation pressure, atmospheric47 7.1 Solar Radiation98 A.3.1 Solar Radiation

  5. Thrust allocation with power management functionality on dynamically positioned vessels

    E-Print Network [OSTI]

    Johansen, Tor Arne

    fulfillment of the operational requirements despite equipment failures introduces new challenges for the control system. Consumers on a ship may include hotel loads, drilling units, heave compensators, cranes and Technology (NTNU), Trondheim, Norway. E-mail: alek- sander.veksler@itk.ntnu.no, tor

  6. www.nasa.gov Thrust Oscillation Focus Team

    E-Print Network [OSTI]

    Waliser, Duane E.

    and Human Factors - Phil Root / Bernard Adelstein ! NESC Structures and Dynamics Team - Curt Larsen / Alden Mackey ! NESC Consultants - Scott Horowitz / Gloyer-Taylor Labs (Paul Gloyer, Tim Lewis, Gary Flandro

  7. Center for Inverse Design: Research Thrusts and Subtasks

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

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

  8. David Muller > Research Thrust Leader - Complex Oxides

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

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

  9. Joel Brock > Research Thrust Leader - Complex Oxides

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

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

  10. Tobias Hanrath > Research Thrust Leader - Fuel Cells and Batteries

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

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

  11. Subsalt Depth Seismic Imaging and Structural Interpretation in Dumre Area, Albania

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Subsalt Depth Seismic Imaging and Structural Interpretation in Dumre Area, Albania A. Jardin1, F Interpretation in Dumre Area, Albania -- The challenge of seismic exploration in fold and thrust belt settings compte plus importante des donnes gologiques. Abstract -- Subsalt Depth Seismic Imaging and Structural

  12. CV S. Judge 1 SHELLEY A. JUDGE

    E-Print Network [OSTI]

    Wilson, Mark A.

    School (Columbus), a public school emphasizing math, science, and technology. Instructor/Assistant Professor, Department of Geology, Muskingum College, New Concord, Ohio, 2005-2008. · Taught the lecture-thrust belt. Editorial Board Member, Integrated Ocean Drilling Program, Expedition 306: North Atlantic Climate

  13. Crustal structure of central Lake Baikal: Insights into intracontinental rifting

    E-Print Network [OSTI]

    ten Brink, Uri S.; Taylor, Michael Halford

    2002-07-16T23:59:59.000Z

    in an ancient fold-and-thrust belt. The extent and location of upper mantle extension are not revealed by our data, and it may be offset from the rift. We believe that the Baikal rift structure is similar in many respects to the Mesozoic Atlantic rift system...

  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. Carboniferous terrigenous clastic facies, hydrocarbon producing zones, and sandstone provenance, northern shelf of Black Warrior basin

    SciTech Connect (OSTI)

    Cleaves, A.W.

    1983-09-01T23:59:59.000Z

    Deltaic and barrier-bar depositional systems from the Chester and Pottsville Groups of the Black Warrior basin produce natural gas and minor oil from 11 Mississippian sandstone reservoirs and four Pennsylvanian clastic units. Within the Chester, four major genetic sequences containing cratonic delta systems have been mapped. Chester deltas prograded southeastward onto the stable northern shelf from a cratonic source area, most likey the Ozark uplift. Net sandstone isolith maps for discrete genetic units demonstrate a northwest-to-southeast progradational trend and a tendency for the sub-Millerella units to thicken updip to the line of post-Carboniferous erosinal truncation. An isopach map of the Tuscumbia-Millerella interval shows thickening toward the north, away from the Ouachita orogenic source area. Limited petrographic evidence from Lewis and Carter sandstone bodies associated with the principal subsurface deltaic facies tract indicates a dominance of monocrystalline quartz and chert rock fragments, as well as an absence of lithologic indicators for an orogenic provenance. The Pottsville Group can be broken down into a maximum of 10 regionally mappable subsurface intervals. Widespread delta destructional coal seams and marine reworked sandstone bodies serve as marker units. Pottsville gas production derives from barrier bar facies in the lowest two genetic intervals and from the mixed barrier-bar and deltaic sandstone units of interval 3 (Nason). This Lower Pennsylvanian clastic wedge has its predominant source area to the south in the Ouachita orogenic belt. An isopach map of the total Pottsville documents significant thickening to an excess of 10,000 ft (3,000 m) in central Mississippi. All of the previously mentioned orogenic indicators are noted in the outcropping deltaic Pottsville facies.

  16. Paleo-reconstruction of shelf-slope margin along San Emigdio Mountains, southern San Joaquin Valley, California

    SciTech Connect (OSTI)

    Butler, K.R.

    1988-03-01T23:59:59.000Z

    Deformation along the San Emigdio Mountains, California, is characterized by large overthrust sheets that carried Eocene through Miocene nonmarine to shallow marine strata over their deeper marine equivalents. The Pleito thrust has at least 20,000 ft of throw and is the major structural feature of this overthrust belt. The upper plate of the Pleito thrust carries an extensively exposed block of three prograding sequences and, along strike, partially exposes the shelf-slope boundaries of these units. Equivalent changes are observed in the subsurface beneath the overthrust. Total crustal shortening along this region ranges from 25 to 50%, with most of the shortening taken up by the Pleito thrust. The thrust has a low-angle, ramp-and-glide configuration, but on the south, the strata eventually extend downward into basement. The northern boundary to the deformation belt is the White Wolf and Pioneer fold and thrust structures. These features form a transfer zone, where one structure ends and the other feature begins. The amplitude of these folds can be up to 10,000 ft from crest to trough. Because of the large overthrust of the Pleito thrust, reservoir rocks are found up to 7 mi south of the fault's surface trace in the lower plate. The buried strata lie south and west of producing fields along the White Wolf fault and the Tejon embayment. The complicated stratigraphic changes combined with the thrust-belt structures require retrodeformable crustal profiles to take into account the facies distributions to model the hydrocarbon potential of this lightly explored province.

  17. Cyclicity and stacking patterns in Carboniferous strata of the Black Warrior Foreland Basin

    SciTech Connect (OSTI)

    Pashin, J.C. [Geological Survey of Alabama, Tuscaloosa, AL (United States)

    1994-09-01T23:59:59.000Z

    Cyclicity in Carboniferous stratigraphic successions has long been attributed to tectonism and climate, but the ways these variables interact to determine the architecture of sedimentary basin fills remain a subject of intense debate. Geophysical well logs and cores from the Black Warrior basin were used to test the effects of tectonism and climate on cyclicity and stacking patterns in a foreland-basin setting. The Black Warrior basin formed in Carboniferous time by diachronous tectonic loading of the Alabama continental promontory along the Appalachian-Ouachita juncture. Climatic changes affecting the basin during this time include drift of southeastern North America from the arid southern tradewind belt toward the humid equatorial belt, as well as the onset of a major Gondwana glaciation just prior to the end of the Chesterian. The fill of the Black Warrior basin comprises carbonate and coal-bearing depositional cycles, and the composition, frequency, and stacking patterns of those cycles reflect dynamically interwoven tectonic and climatic factors. Tectonic loading evidently gave rise to flexural movements that determined cycle stacking patterns by controlling spatial and temporal variation of subsidence rate. Evolving tectonic highlands, moreover, fostered a shift from cratonic to orogenic sources of terrigenous elastic sediment, thereby affecting stratal geometry. Climate, by contrast, regulated the composition and frequency of the cycles. The transition from carbonate-bearing cycles with oxidized, calcic paleosols to coal-bearing cycles with reduced, histic paleosols reflects drift of southeastern North America into the humid equatorial belt. Change of average cycle duration from 1.3 m.y. to less than 0.4 m.y. corresponds with the onset of Gondwana glaciation, suggesting significant climatic forcing of sea level variation.

  18. Refolding of thin-skinned thrust sheets by active basement-involved thrust faults in the eastern Precordillera of western Argentina

    E-Print Network [OSTI]

    Kurapov, Alexander

    Precordillera of western Argentina Andrew Meigs1 William C Krugh2 Celia Schiffman1 Jaume Vergés3 Victor A. Ramos Andina, Departamento de Ciencias Geológicas, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina in western Argentina. Although the earthquake caused considerable damage to San Juan, the source

  19. Potential for producing oil and gas from the Woodford Shale (Devonian-Mississippian) in the southern mid-continent, USA

    SciTech Connect (OSTI)

    Comer, J.B. (Indiana Geological Survey, Bloomington, IN (United States))

    1992-04-01T23:59:59.000Z

    The Woodford Shale is a prolific oil source rock throughout the southern mid-continent of the United States. Extrapolation of thickness and organic geochemical data based on the analysis of 614 samples from the region indicate that on the order of 100 {times} 10{sup 9} bbl of oil (300 {times} 10{sup 12} ft{sup 3} of natural gas equivalent) reside in the Woodford in Oklahoma and northwestern Arkansas. The Woodford in west Texas and southeastern New Mexico contains on the order of 80 {times} 10{sup 9} bbl of oil (240 {times} 10{sup 12} ft{sup 3} of natural gas equivalent). Tapping this resource is most feasible in areas where the Woodford subcrop contains competent lithofacies (e.g., chert, sandstone, siltstone, dolostone) and is highly fractured. Horizontal drilling may provide the optimum exploitation technique. Areas with the greatest potential and the most prospective lithologies include (1) the Nemaha uplift (chert, sandstone, dolostone), (2) Marietta-Ardmore basin (chert), (3) southern flank of the Anadarko basin along the Wichita Mountain uplift (chert), (4) frontal zone of the Ouachita tectonic belt in Oklahoma (chert), and (5) the Central Basin platform in west Texas and New Mexico (chert and siltstone). In virtually all of these areas, the Woodford is in the oil or gas window. Thus, fracture porosity would be continuously fed by hydrocarbons generated in the enclosing source rocks. Reservoir systems such as these typically have produced at low to moderate flow rates for many decades.

  20. Potential for producing oil and gas from Woodford Shale (Devonian-Mississippian) in the southern Mid-Continent, USA

    SciTech Connect (OSTI)

    Comer, J.B. (Indiana Geological Survey, Bloomington (United States))

    1991-03-01T23:59:59.000Z

    Woodford Shale is a prolific oil source rock throughout the southern Mid-Continent of the US. Extrapolation of thickness and organic geochemical data based on the analysis of 614 samples from the region indicate that on the order of 100 {times} 10{sup 9} bbl of oil (300 {times} 10{sup 12} ft {sup 3} of natural gas equivalent). Tapping this resource is most feasible in areas where the Woodford subcrop contains competent lithofacies (e.g., chert, sandstone, siltstone, dolostone) and is high fractured. Horizontal drilling may provide the optimum exploitation technique. Areas with the greatest potential and the most prospective lithologies include (1) the Nemaha uplift (chert, sandstone, dolostone), (2) Marietta-Ardmore basin (chert), (3) southern flank of the Anadarko basin along the Wichita Mountain uplift (chert), (4) frontal zone of the Ouachita tectonic belt in Oklahoma (chert), and (5) the Central Basin platform in west Texas and New Mexico (chert and siltstone). In virtually all of these areas the Woodford is in the oil or gas window. Thus, fracture porosity would be continuously fed by hydrocarbons generated in the enclosing source rocks. Reservoir systems such as these have typically produced at low to moderate flow rates for many decades.

  1. asteroid belt analogs: Topics by E-print Network

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

    using the it Spitzer Space Telescope. With accurate relative photometry using the Infrared Spectrometer (IRS) between 7-34 micron we are able to look for excesses as small...

  2. Modeling of the radiation belt megnetosphere in decisional timeframes

    DOE Patents [OSTI]

    Koller, Josef; Reeves, Geoffrey D; Friedel, Reiner H.W.

    2013-04-23T23:59:59.000Z

    Systems and methods for calculating L* in the magnetosphere with essentially the same accuracy as with a physics based model at many times the speed by developing a surrogate trained to be a surrogate for the physics-based model. The trained model can then beneficially process input data falling within the training range of the surrogate model. The surrogate model can be a feedforward neural network and the physics-based model can be the TSK03 model. Operatively, the surrogate model can use parameters on which the physics-based model was based, and/or spatial data for the location where L* is to be calculated. Surrogate models should be provided for each of a plurality of pitch angles. Accordingly, a surrogate model having a closed drift shell can be used from the plurality of models. The feedforward neural network can have a plurality of input-layer units, there being at least one input-layer unit for each physics-based model parameter, a plurality of hidden layer units and at least one output unit for the value of L*.

  3. african meningitis belt: Topics by E-print Network

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

    to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A. Conrad; S. K. Hartman; E. M. Johansson;...

  4. altay orogenic belt: Topics by E-print Network

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

    to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A. Conrad; S. K. Hartman; E. M. Johansson;...

  5. african middle belt: Topics by E-print Network

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

    to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A. Conrad; S. K. Hartman; E. M. Johansson;...

  6. active mountain belts: Topics by E-print Network

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

    to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A. Conrad; S. K. Hartman; E. M. Johansson;...

  7. altitudinal vegetation belts: Topics by E-print Network

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

    to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A. Conrad; S. K. Hartman; E. M. Johansson;...

  8. February 2002 Modelling The Conveyor Belt Circulation using MICOM

    E-Print Network [OSTI]

    Nadiga, Balasubramanya T. "Balu"

    ;Climatological SST, Zero flux over ice, Net heating of 17 W/m2 #12;Climatological SST, Zero flux over ice, Net

  9. andean metallogenic belt: Topics by E-print Network

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

    Isotopes in Water B R Y A N G . M A R K, The Ohio State University, 1036 Derby Hall, 154 North Oval Mall, Columbus, Ohio 43210-1361 Glaciers streams discharging from glacierized...

  10. artificial radiation belts: Topics by E-print Network

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

    the solar wind. Using standard representations of the coronal field, we show that high-energy ions can be trapped stably in these large-scale closed fields. The drift shells that...

  11. Geology of eastern Smith Lake ore trend, Grants mineral belt

    SciTech Connect (OSTI)

    Ristorcelli, S.J.

    1980-01-01T23:59:59.000Z

    The sandstones in the Brushy Basin Member of the Morrison Formation (Jurassic) are the ore-bearing horizons of the eastern Smith Lake area. The Brushy Basin Member in this district consists of three sandstones with interbedded mudstones. Only the lower two sandstones contain ore. The sandstones are fine to coarse grained, well rounded, and arkosic, representing continental stream sediments. The lower sandstone contains rollfront ore. The redox interface is laterally extensive and well defined, extending at least 7 mi (11 km) west of the Bluewater fault zone. The ore generally occurs at the redox boundary but occasionally will be up to 1500 ft (450 m) updip. Limonitic alteration, where present, is downdip from the hematitic zone and is 100-1,500 ft (30 to 450 m) wide. The middle sandstone contains both trend ore and roll-front ore. The trend ore occurs downdip from the redox front in unoxidized ground. The redox front in the middle sand is also laterally extensive but displays a wedge shape, rather than a C shape. The clay assemblages of the two types of ore are different: the trend ore occurs in sands with the pore spaces filled with kaolinite; the roll-front ore is associated with altered illite-montmorillonite as grain coatings. Hematitic alteration is asociated with the latter. A second stage of kaolinite coats the illite-montmorillonite. Two periods of mineralization are suggested, but no absolute dates are known. The trend ore is the oldest (Jurassic) and is similar to the ore found in unoxidized ground elsewhere in the Grants region. The rollfront ore could be Laramide or post-Laramide because of its association with local Laramide structures.

  12. ailaoshan gold belt: Topics by E-print Network

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

    has a large-scale dipole character, which maps into the bipolar field in the solar wind. Using standard representations of the coronal field, we show that high-energy ions can...

  13. associations kaoko belt: Topics by E-print Network

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

    giant planets; 2) planetary resonances; and 3) the Poynting-Robertson (P-R) and solar wind drags. A file consisting of 0.9times 106 particle positions has been computed to...

  14. Gravity interpretation of the northern Overthrust Belt, Idaho and Wyoming

    E-Print Network [OSTI]

    Silver, Wendy Ilene

    1979-01-01T23:59:59.000Z

    provide a potential source of information about the configuration of the sedimentary rock / Precambrian basement interface as well as the geometry of the overlying younger rocks. GRAVITY DA. A Regional Gravity The regional gravity field of Wyoming..., Jurassic and Lower Cretaceous units. It may therefore be concluded that the uplifts of the Precambrian basement were fomed after the deposition of those overly1ng sedimentary rocks. ACKNOWLEDGEMEWTS I w1sh to thank Dr, R. R. Berg, chairman of my...

  15. asian orogenic belt: Topics by E-print Network

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

    dominated by pink, radiation. Keywords: Fission track; Zircon; Exhumation; Radiation damage; New Zealand 1. Introduction One trace amounts of uranium and thorium that decay...

  16. Los Alamos provides HOPE for radiation belt storm probes

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

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

  17. Wheat Belt Public Power Dist | 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 withTianlin BaxinUmweltVillageGraphWellton-MohawkWesternwish OpenEI wouldWheat

  18. Mysterious electron stash found hidden among Van Allen belts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1 SECTIONES2008-54174MoreMuseum Day atMyNERSCVan Allen

  19. Unraveling the Timing of Fluid Migration and Trap Formation in the Brooks Range Foothills: A Key to Discovering Hydrocarbons

    SciTech Connect (OSTI)

    Catherine L. Hanks

    2008-12-31T23:59:59.000Z

    Naturally occurring fractures can play a key role in the evolution and producibility of a hydrocarbon accumulation. Understanding the evolution of fractures in the Brooks Range/Colville basin system of northern Alaska is critical to developing a better working model of the hydrocarbon potential of the region. This study addressed this problem by collecting detailed and regional data on fracture distribution and character, structural geometry, temperature, the timing of deformation along the Brooks Range rangefront and adjacent parts of the Colville basin, and the in situ stress distribution within the Colville basin. This new and existing data then were used to develop a model of how fractures evolved in northern Alaska, both spatially and temporally. The results of the study indicate that fractures formed episodically throughout the evolution of northern Alaska, due to a variety of mechanisms. Four distinct fracture sets were observed. The earliest fractures formed in deep parts of the Colville basin and in the underlying Ellesmerian sequence rocks as these rocks experienced compression associated with the growing Brooks Range fold-and-thrust belt. The orientation of these deep basin fractures was controlled by the maximum in situ horizontal stress in the basin at the time of their formation, which was perpendicular to the active Brooks Range thrust front. This orientation stayed consistently NS-striking for most of the early history of the Brooks Range and Colville basin, but changed to NW-striking with the development of the northeastern Brooks Range during the early Tertiary. Subsequent incorporation of these rocks into the fold-and-thrust belt resulted in overprinting of these deep basin fractures by fractures caused by thrusting and related folding. The youngest fractures developed as rocks were uplifted and exposed. While this general order of fracturing remains consistent across the Brooks Range and adjacent Colville basin, the absolute age at any one location varies. Fracturing started in the southwest deep in the stratigraphic section during the Late Jurassic and Early Cretaceous, moving northeastward and upsection as the Colville basin filled from the west. Active fracturing is occurring today in the northeastern parts of the Colville basin, north of the northeastern Brooks thrust front. Across northern Alaska, the early deep basin fractures were probably synchronous with hydrocarbon generation. Initially, these early fractures would have been good migration pathways, but would have been destroyed where subsequently overridden by the advancing Brooks Range fold-and-thrust belt. However, at these locations younger fracture sets related to folding and thrusting could have enhanced reservoir permeability and/or served as vertical migration pathways to overlying structural traps.

  20. Non-Perturbative Contribution to the Thrust Distribution in e+ e- Annihilation.

    E-Print Network [OSTI]

    Davison, R A; Webber, Bryan R

    integrating them. For R3 (t), the EERAD3 results were first smoothed by taking dR3 dt (ti)? 1 3 [ dR3 dt (ti+1) + dR3 dt (ti) + dR3 dt (ti?1) ] , (29) repeatedly until a smooth curve was obtained. The peak near t = 0 had to be reintroduced by hand...

  1. A Thrust for Integration of High-Performance Steady-State Burning-

    E-Print Network [OSTI]

    profiles? Does the plasma evolve to a stable self-organized state? Will alpha heating drive a self-heating Fusion Gain (Q) Self-heating (%) 4 50 80 91 1.7 Sustainment (100% NI)** (Pcd/P ) >25 1 0

  2. American Institute of Aeronautics and Astronautics Novel Multi-Barrier Plasma Actuators for Increased Thrust

    E-Print Network [OSTI]

    Roy, Subrata

    Physics Research Group Mechanical and Aerospace Engineering Department University of Florida, GainesvilleVpp * Graduate Student, Student Member AIAA, dursch@ufl.edu Associate Professor, Associate Fellow AIAA, roy@ufl.edu P 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition 4

  3. National Aeronautics and Space Administration SLS System Integration Lab and Thrust

    E-Print Network [OSTI]

    Waliser, Duane E.

    . This capability enables failure investigations and future software updates throughout the system life cycle Lab (SIL) supports development of NASA's Space Launch System--a new U.S. heavy-lift launch vehicle development and interface/ integration testing currently underway in the System Integration Lab (SIL) Software

  4. RESEARCH ARTICLE1 2 Evaluation of thrust measurement techniques for dielectric

    E-Print Network [OSTI]

    Roy, Subrata

    resulting in an electro-hydrodynamic body force act- 57ing on the working gas resulting in an acceleration aerodynamic applications such as 66turbines blades (Ramakumar and Jacob 2005; Rizzetta and 67Visbal 2008

  5. Optimal dimensionless design and analysis of jet ejectors as compressors and thrust augmenters

    E-Print Network [OSTI]

    Mohan, Ganesh

    2006-08-16T23:59:59.000Z

    and mesh generation) and FLUENT (Computational Fluid Dynamics (CFD) solver kit). Scripting languages PYTHON and SCHEME were used to automate this process. The CFD model employed 2D axis symmetric, steady-state flow using the ??k method (including wall...

  6. PROPULSOR THRUST VECTORING THROUGH STATOR-INDUCED CIRCUMFERENTIALLY-VARYING PRESWIRL

    E-Print Network [OSTI]

    Salama, Khaled

    maneuvering and stealthy propulsion system for torpedoes and unmanned underwater vehicles. The idea would system. In Underwater Unmanned Vehicles (UUVs) it would provide the potential ability of produce more and allowing all the vehicle control to come from the propulsion system. Through dynamically

  7. Optimal Thrust Characteristics of a Synthetic Jet Actuator for Application in Low Speed

    E-Print Network [OSTI]

    Mohseni, Kamran

    speed maneuvering or locomotion of small unmanned underwater vehicles (UUVs) [1], [2]. The of Underwater Vehicles Michael Krieg, Aravind Pitty, Mostafa Salehi, and Kamran Mohseni Department of Aerospace actuators are pro- posed for low speed maneuvering and station keeping of small underwater vehicles

  8. INTRODUCTION With the Jawaharlal Nehru National Solar Mission, there is a thrust

    E-Print Network [OSTI]

    Narayanan, H.

    of the overall system. The solar thermal power plant simulator will enable one to simulate different scenarios Power in India. To facilitate the development of cost effective Solar Power Plants in India, IIT Bombay is setting up a National Solar Thermal Power Testing, Simulation and Research Facility with the financial

  9. Electric Energy Challenges of the Future Future Grid Thrust Area 1 White Paper

    E-Print Network [OSTI]

    . 2012 Arizona State University. All rights reserved. #12;i Acknowledgements The support for research technologies in a power engineering context Reduction of dependence on foreign oil The implementation DC (including expansion of existing facilities, rout- ing of circuits in Mexico, multi-terminal DC

  10. Thrusting and sinistral wrenching in a pre-Eocene HP-LT Caribbean accretionary wedge (Saman

    E-Print Network [OSTI]

    Nicollet, Christian

    (Hispaniola, Dominican Republic) con- firms the presence of two different metamorphic units. The former bleus de la presqu'île de Samaná (Hispaniola, République Dominicaine) a per- mis de confirmer la

  11. Test-Theory Correlation Study for an Ultra High Temperature Thrust Magnetic Bearing

    E-Print Network [OSTI]

    Desireddy, Vijesh R.

    2010-01-14T23:59:59.000Z

    between bearing force, applied current and temperature. The thesis incorporates the assembly, testing of the electromagnetic bearing at various speeds and temperatures and compare predicted to measured force vs. speed, current, gap and temperature...

  12. Fuel-optimal Earth-Mars trajectories using low-thrust exhaust-modulated plasma propulsion

    E-Print Network [OSTI]

    Nah, Ren Sang

    1999-01-01T23:59:59.000Z

    The objective of this thesis is the determination of fuel-optimal interplanetary trajectories of a spacecraft using a variable specific impulse thruster. The spacecraft departs from an Earth parking orbit and is required to establish a specified...

  13. Deformation in ramp regions of thrust faults: experiments with rock models

    E-Print Network [OSTI]

    Morse, James Donald

    1978-01-01T23:59:59.000Z

    &a&es of? the L'ona- sauga G& oup (I&liddl e and Upper Camj&rfan) and Lhe Chattanooga Shale (Devonian ar d tfississippian), and transverse tr& bed?ini; in ti e more "cr&mpetrr t" sir ata. 1 he final conf igiuration, accordirg to Rich, is sho:in scheim...

  14. A multi-objective approach to the design of low thrust space trajectories using optimal control

    E-Print Network [OSTI]

    was a solar-wind sample return mission between 2001 and 2004. The Hiten mission marked the first use of a weak the last years dynamical system techniques have been developed for the design of energy

  15. Thrust Area 2 Chemofluidic Vane Motor/ActuatorDr. Michael Goldfarb

    E-Print Network [OSTI]

    Barth, Eric J.

    from a monopropellant or bipropellant inert gas charge reaction as the working fluid. · Stator geometry. Once the trailing vane moves past the injection port, injection process ends and expansion process Five Proposed Work Schedule Outer stator diameter of 6.25 cm (2.5 in) Rotor diameter of 3.75 cm (1

  16. Lower edge of locked Main Himalayan Thrust unzipped by the 2015 Gorkha earthquake

    E-Print Network [OSTI]

    Avouac, Jean?Philippe; Meng, Lingsen; Wei, Shengji; Wang, Teng; Ampuero, Jean?Paul

    2015-01-01T23:59:59.000Z

    )17,23. Inset: map 157 location and motion of India relative to Eurasia. 158 159 Figure 2: Seismic rupture kinematics. (a) Co-?seismic slip determined... the lowest objective function, given as: 399 Misfit= Ewf+ WI *EI +WS *S + Ww*M, 400 where Ewf is the waveform misfit, EI is the geodetic misfit, S is a normalized, second derivative 401 of slip between adjacent patches (a so-called Laplacian...

  17. THE EMILIA THRUST EARTHQUAKE OF 20 MAY 2012 (NORTHERN ITALY): STRONG MOTION AND GEOLOGICAL OBSERVATIONS

    E-Print Network [OSTI]

    Fleskes, Joe

    ). The RAN includes both the stations of an historical network, located inside ENEL electric transformer the sites for the new stations, and that ensure electrical power to the same stations. #12;2 Today, thanks

  18. Plasma channel from EP beam Direct-drive ignition is the main thrust in LLE

    E-Print Network [OSTI]

    -drive ignition; this is not an optimal configuration fordirectdrivethatrequiressphericalillumination I2093 for direct-drive experiments; it is coupled to a high-power, short-pulse laser (OMEGA EP) to explore advanced 26 kJ Scale 1:70 in energy Scale 1:1 Scale 1:1 #12;Hydro-equivalentignitiononOMEGA #12;Ignition

  19. Undrilled shallow giant trap in Denver basin, Colorado: mountain-front thrust

    SciTech Connect (OSTI)

    Jacob, A.F.

    1983-03-01T23:59:59.000Z

    Along the southwestern margin of the Denver basin, Precambrian rocks have been upthrusted at least 15,000 ft (4600 m) in the Front Range and 8000 to 10,000 ft (2400 to 3000 m) or more in the Wet Mountains. Below the Precambrian, the precise configuration of the strata and the faults is unknown because there are no available seismic or drilling data, but reasonable interpretations can be made by analogy with other similar areas. Important reservoirs in the basin are the Permian Lyons Sandstone, the Lower Cretaceous J and D sandstones, and the Upper Cretaceous Codell Sandstone, Niobrara Formation, and Pierre Shale. Directly overlying the J are the major hydrocarbon-source rocks in the basin. Black shale is interstratified with the Lyons Sandstone in at least one drill hole in front of the upthrust. All source rocks probably reached maturity in late Cretaceous time and still are generating today. Below the Precambrian, simple upfolding permits an oil column as much as 5000 ft (1500 m) high, or more, the J, and as much as 4000 ft (1200 m) high, or more, in the Lyons, assuming a fault dip of 70/sup 0/ at depth; lower fault dips permit higher oil columns. Clayey fault gouge, breccia, and minute faulting, in a zone that is in many places hundreds of feet wide at the fault, should be a good hydrocarbon seal, like a cork in a tilted 5000-ft (1500 m) high bottle. If the strata roll over to the west to form a large anticline below the Precambrian, a different kind of trap of very large dimensions would be present. Any kind of trap can extend a combined north-south distance of nearly 65 mi (105 km). Even if roll over is absent and the fault dips steeply, drilling depths to most traps are likely to be only several thousand feet.

  20. Nonlinear Thrust Controller for Marine Propellers in Four-Quadrant Operations

    E-Print Network [OSTI]

    Johansen, Tor Arne

    controllers lie in the modeling of the propeller's dynamics and in the problem of measuring the environmental, ventilation, in-and-out-of water effects, wave-induced water velocities and interaction between the vessel in order to detect a ventilation incident, i.e. high loss situation that occurs in extreme seas. In [8

  1. Geochronologic and Thermobarometric Constraints on the Evolution of the Main Central Thrust, central Nepal Himalaya

    E-Print Network [OSTI]

    Harrison, Mark

    , central Nepal Himalaya E.J. Catlos1 , T. Mark Harrison1 , Matthew J. Kohn2 , Marty Grove1 , F.J. Ryerson3. 4. Department of Geology, Tri-Chandra Campus, Tribhuvan University, Kathmandu, Nepal. Journal sampled along the Marysandi River and Darondi Khola in the Annapurna region of central Nepal show striking

  2. Lyapunov feedback control in equinoctial elements applied to low thrust control of elliptical orbit constellations

    E-Print Network [OSTI]

    Joseph, Benjamin E. (Benjamin Ethan)

    2006-01-01T23:59:59.000Z

    For a typical satellite constellation design problem, sometimes there are two conflicting goals. On one hand one wishes to provide continuous coverage of a particular area. On the other hand one would like to use the minimum ...

  3. Complex Oxides - Research Thrust Leader > David Muller > Leadership Team >

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting theCommercialization and Innovation2010 2010AboutCompleteThe Energy Materials

  4. Complex Oxides - Research Thrust Leader > Joel Brock > Leadership Team >

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting theCommercialization and Innovation2010 2010AboutCompleteThe Energy

  5. Power Rental Market to Receive Thrust from Asia-Pacific, to Rise to

    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 Geothermal PwerPerkins County, Nebraska: EnergyPiratiniEdwards,PoseyPoudre Valley RGenerating

  6. Method to Produce High Specific Impulse and Moderate Thrust from a

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

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

  7. Batteries & Fuel Cells - Research Thrust Leader > Frank DiSalvo >

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

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

  8. Batteries & Fuel Cells - Research Thrust Leader > Tobias Hanrath >

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

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

  9. Frank DiSalvo > Research Thrust Leader - Fuel Cells and Batteries

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental Assessments (EA)Budget(DANCE) TargetForms &Francis G. J. PereyJohn

  10. Major Oil Plays In Utah And Vicinity

    SciTech Connect (OSTI)

    Thomas Chidsey

    2007-12-31T23:59:59.000Z

    Utah oil fields have produced over 1.33 billion barrels (211 million m{sup 3}) of oil and hold 256 million barrels (40.7 million m{sup 3}) of proved reserves. The 13.7 million barrels (2.2 million m3) of production in 2002 was the lowest level in over 40 years and continued the steady decline that began in the mid-1980s. However, in late 2005 oil production increased, due, in part, to the discovery of Covenant field in the central Utah Navajo Sandstone thrust belt ('Hingeline') play, and to increased development drilling in the central Uinta Basin, reversing the decline that began in the mid-1980s. The Utah Geological Survey believes providing play portfolios for the major oil-producing provinces (Paradox Basin, Uinta Basin, and thrust belt) in Utah and adjacent areas in Colorado and Wyoming can continue this new upward production trend. Oil plays are geographic areas with petroleum potential caused by favorable combinations of source rock, migration paths, reservoir rock characteristics, and other factors. The play portfolios include descriptions and maps of the major oil plays by reservoir; production and reservoir data; case-study field evaluations; locations of major oil pipelines; identification and discussion of land-use constraints; descriptions of reservoir outcrop analogs; and summaries of the state-of-the-art drilling, completion, and secondary/tertiary recovery techniques for each play. The most prolific oil reservoir in the Utah/Wyoming thrust belt province is the eolian, Jurassic Nugget Sandstone, having produced over 288 million barrels (46 million m{sup 3}) of oil and 5.1 trillion cubic feet (145 billion m{sup 3}) of gas. Traps form on discrete subsidiary closures along major ramp anticlines where the depositionally heterogeneous Nugget is also extensively fractured. Hydrocarbons in Nugget reservoirs were generated from subthrust Cretaceous source rocks. The seals for the producing horizons are overlying argillaceous and gypsiferous beds in the Jurassic Twin Creek Limestone, or a low-permeability zone at the top of the Nugget. The Nugget Sandstone thrust belt play is divided into three subplays: (1) Absaroka thrust - Mesozoic-cored shallow structures, (2) Absaroka thrust - Mesozoic-cored deep structures, and (3) Absaroka thrust - Paleozoic-cored shallow structures. Both of the Mesozoic-cored structures subplays represent a linear, hanging wall, ramp anticline parallel to the leading edge of the Absaroka thrust. Fields in the shallow Mesozoic subplay produce crude oil and associated gas; fields in the deep subplay produce retrograde condensate. The Paleozoic-cored structures subplay is located immediately west of the Mesozoic-cored structures subplays. It represents a very continuous and linear, hanging wall, ramp anticline where the Nugget is truncated against a thrust splay. Fields in this subplay produce nonassociated gas and condensate. Traps in these subplays consist of long, narrow, doubly plunging anticlines. Prospective drilling targets are delineated using high-quality, two-dimensional and three-dimensional seismic data, forward modeling/visualization tools, and other state-of-the-art techniques. Future Nugget Sandstone exploration could focus on more structurally complex and subtle, thrust-related traps. Nugget structures may be present beneath the leading edge of the Hogsback thrust and North Flank fault of the Uinta uplift. The Jurassic Twin Creek Limestone play in the Utah/Wyoming thrust belt province has produced over 15 million barrels (2.4 million m{sup 3}) of oil and 93 billion cubic feet (2.6 billion m{sup 3}) of gas. Traps form on discrete subsidiary closures along major ramp anticlines where the low-porosity Twin Creek is extensively fractured. Hydrocarbons in Twin Creek reservoirs were generated from subthrust Cretaceous source rocks. The seals for the producing horizons are overlying argillaceous and clastic beds, and non-fractured units within the Twin Creek. The Twin Creek Limestone thrust belt play is divided into two subplays: (1) Absaroka thrust-Mesozoic-cored structures and (2) A

  11. area north island: Topics by E-print Network

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

    Stanley Alfred 1957-01-01 37 Structural geology of the Irons Fork - North Fork Creek area, Lake Ouachita, Arkansas Texas A&M University - TxSpace Summary: STRUCTURAL...

  12. Fluid Flow, Thermal History, and Diagenesis of the Cambrian-Ordovician Arbuckle Group and Overlying Units in South-Central Kansas

    E-Print Network [OSTI]

    King, Bradley Donald

    2013-12-31T23:59:59.000Z

    controlled during calcite precipitation. Ouachita tectonism caused tectonically valved and gravity-driven fluid flow sourced from the Anadarko basin and possibly involved sandstone aquifers or basement. Mechanisms of ancient fluid flow appear to contrast...

  13. Genetic classification of petroleum systems

    SciTech Connect (OSTI)

    Demaison, G. (Stanford Univ., CA (United States)); Huizinga, B.J. (Chevron Overseas Petroleum Inc., San Ramon, CA (United States))

    1991-10-01T23:59:59.000Z

    The authors classification so petroleum systems is founded on a simple working nomenclature that consists of combining qualifiers from each of the following three categories: (1) charge factor, (2) migration drainage style, and (3) entrapment style. The charge factor is estimated on the basis of the richness and volumetrics of mature source rocks. The source potential index (SPI), which combines source-rock richness and thickness into a single parameter, is a convenient shortcut for comparing the petroleum potential of diverse source rocks containing dissimilar kerogen types and for rapidly estimating regional charging capacity. The migration drainage style is determined from the structural and stratigraphic framework of a basin. Vertical-migration drainage, which occurs mainly through faults and fracture systems breaching a seal, is characteristic of petroleum systems contained within rift basins, deltaic sequences, salt-dome provinces, wrench basins, and fold-and-thrust belts. In contrast, lateral-migration drainage sequences, salt-dome provinces, wrench basins, and fold-and-thrust belts. In contrast, lateral-migration drainage is dominant wherever stratigraphically continuous seal-reservoir doublets extend over a very large area in tectonically stable province. The entrapment style, which is also dependent on the structural framework and the presence and effectiveness of seals, describes the degree of resistance working against dispersion of the petroleum charge. Application of these working concepts should help to significantly reduce geologic risk, particularly in news ventures-type exploration.

  14. Performance characterization and optimization of a diverging cusped field thruster with a calibrated counter-weighted millinewton thrust stand

    E-Print Network [OSTI]

    Daspit, Ryan M

    2012-01-01T23:59:59.000Z

    The previously developed Diverging Cusped Field Thruster (DCFT) has undergone further investigations and performance characterization. The DCFT is a magnetically conned plasma thruster that uses cusped magnetic fields to ...

  15. Space System Architecture: Final Report of SSPARC: the Space Systems, Policy, and Architecture Research Consortium (Thrust I and II)

    E-Print Network [OSTI]

    Hastings, Daniel

    The Space Systems, Policy and Architecture Research Consortium (SSPARC) was formed to make substantial progress on problems of national importance. The goals of SSPARC were to:

  16. The Development of Open Water-lubricated Polycrystalline Diamond (PCD) Thrust Bearings for Use in Marine Hydrokinetic (MHK) Energy Machines

    SciTech Connect (OSTI)

    Cooley, Craig, H.; Khonsari, Michael,, M; Lingwall, Brent

    2012-11-28T23:59:59.000Z

    Polycrstalline diamond (PCD) bearings were designed, fabricated and tested for marine-hydro-kinetic (MHK) application. Bearing efficiency and life were evaluated using the US Synthetic bearing test facility. Three iterations of design, build and test were conducted to arrive at the best bearing design. In addition life testing that simulated the starting and stopping and the loading of real MHK applications were performed. Results showed polycrystalline diamond bearings are well suited for MHK applications and that diamond bearing technology is TRL4 ready. Based on life tests results bearing life is estimated to be at least 11.5 years. A calculation method for evaluating the performance of diamond bearings of round geometry was also investigated and developed. Finally, as part of this effort test bearings were supplied free of charge to the University of Alaska for further evaluation. The University of Alaska test program will subject the diamond bearings to sediment laden lubricating fluid.

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

    E-Print Network [OSTI]

    Ragona, Daniel Eduardo

    2007-01-01T23:59:59.000Z

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

  18. Power consumption, discharge capacitance and light emission as measures for thrust production of dielectric barrier discharge plasma actuators

    SciTech Connect (OSTI)

    Kriegseis, J. [Institute of Fluid Mechanics and Aerodynamics, Technische Universitaet Darmstadt, Flughafenstr. 19, D-64347 Greisheim (Germany); Grundmann, S. [Center of Smart Interfaces, Technische Universitaet Darmstadt, Flughafenstr. 19, D-64347 Greisheim (Germany); Tropea, C. [Institute of Fluid Mechanics and Aerodynamics, Technische Universitaet Darmstadt, Flughafenstr. 19, D-64347 Greisheim (Germany); Center of Smart Interfaces, Technische Universitaet Darmstadt, Flughafenstr. 19, D-64347 Greisheim (Germany)

    2011-07-01T23:59:59.000Z

    A new procedure of determining the time resolved capacitance of a plasma actuator during operation is introduced, representing a simple diagnostic tool that provides insight into the phenomenological behavior of plasma actuators. The procedure is demonstrated by presenting example correlations between consumed electrical energy, size of the plasma region, and the operating voltage. It is shown that the capacitance of a plasma actuator is considerably increased by the presence of the plasma; hence a system that has previously been impedance matched can be considerably de-tuned when varying the operating voltage of the actuator. Such information is fundamental for any attempts to increase the energy efficiency of plasma-actuator systems. A combined analysis of the capacitance, light emission, size of the plasma region, force production, and power consumption is presented.

  19. Measurements versus Predictions for a Hybrid (Hydrostatic plus Hydrodynamic Thrust Bearing for a Range of Orifice Diameters

    E-Print Network [OSTI]

    Esser, Paul R.

    2011-08-08T23:59:59.000Z

    bearings with three different orifice diameters (1.63, 1.80, and 1.93 mm) are tested for a range of supply pressures, fluid film thicknesses, and rotational speeds. The water-lubricated test bearings have eight pockets, with feed orifices located centrally...

  20. The Interplay Between NVIDIA's Thrust GPU Computing Template Library and Unified Memory Support in CUDA 6.0

    E-Print Network [OSTI]

    Negrut, Dan

    , transform, and reduction operations at times one order of magnitude faster than multi-core CPU solutions across the PCI-Express bus. In other words, the CPU to/from GPU data movement is as fast as it used to be movement calls, which leads to tighter and neater code that is easier to produce and less prone to coding

  1. Measurement of normal thrust and evaluation of upper-convected Maxwell models for molten plastics in large amplitude oscillatory shear

    E-Print Network [OSTI]

    Oakley, Jason Glen

    1992-01-01T23:59:59.000Z

    : Margaret Oakley; Jeff, Lisa, and Christopher Smith; Bob and Carmen Gill; Gary and Lezli Gill; Robert, Andrea, and Natasha Gill; Michael Gill; Lee Ann, Elecia, and Edward Moses; and the Johnson family. All of the love, support, and encouragement is much...) with a = 0. 39 36 Model Predictions for the Shear Stress Response for IUPAC LDPE X at 150' C in Large Amplitude Oscillatory Shear for a Strain Amplitude of 5 and a. Frequency of 1 Hz. o, in Pa and 6, in Radians. 40 Model Predictions for the Shear...

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

    E-Print Network [OSTI]

    Ragona, Daniel Eduardo

    2007-01-01T23:59:59.000Z

    Harrington, H. J. , (1944), El sismo de San Juan; del 15 deHarrington, H. J. , (1944), El sismo de San Juan; del 15 deconla magnitud maxima del sismo probable en la zona de la

  3. JOB DESCRIPTION Title: Continuous Improvement Specialist

    E-Print Network [OSTI]

    Heller, Barbara

    or Six Sigma-based continuous improvement methods. Certification: Six Sigma Black Belt or Green Belt

  4. Optimal control techniques for reachable set computations

    E-Print Network [OSTI]

    Boyer, Edmond

    ;Safety by Driver Assistance Systems Passive safety systems: chassis, airbags, seat belts, seat belt

  5. The New Horizons Pluto Kuiper belt Mission: An Overview with Historical Context

    E-Print Network [OSTI]

    Stern, S. Alan

    . The ~400 kg spacecraft carries seven scientific instruments, including imagers, spectrometers, radio developed by NASA's Outer Planets Science Working Group (OPSWG, S.A. Stern chair) in 1992 and slightly in three categories, called Group 1, Group 2, and Group 3. This categorization was first developed by OPSWG

  6. Geology of a portion of the northern Kings Mountain belt, North Carolina

    E-Print Network [OSTI]

    Michie, Joanna

    1985-01-01T23:59:59.000Z

    by D. J. Milton, Sigma Xi, Grant-in-kid of Research, the Geological Survey Section of the North Carolina Department of Natural Resources and Community Development, and the Department of Geology, Texas A&M University. I am particularly grateful to D..., 1981b'I and Butler (1981). These have been described as zones of semi-brittle deformation which overprint the earlier D, and D phases. 1 The zones generally follow lithologic contacts and are marked by retrogressive metamorphi. sm to the green...

  7. ON-BELT ANALYSIS OF MINERALS USING NATURALLY OCCURRING GAMMA RADIATION

    E-Print Network [OSTI]

    Huynh, Du

    of coal. Gamma ray spectra are collected every 900 seconds from a BGO detector with 1024 channels linearly collected with a BGO (Bis- muth Germanate) gamma ray detector, which collects emis- sions from Potassium (K is used to estimate linear drift in the detector. Index Terms-- Gamma ray detector, Poisson process

  8. Mechanical characteristics of folds in Upper Cretaceous strata in the Disturbed Belt of northwestern Montana

    E-Print Network [OSTI]

    Gilbert, Pat Kader

    1974-01-01T23:59:59.000Z

    -shape. The trough in S3 (see unit 23, Plate 2) is hi. ghly fractured in the sandstone and shows considerable flowage in the shale. From the air, it is readily apparent that these folds of the upper Two Medicine are much smaller in lateral extent along strike than... Formation (mostly shale), the Virgelle Sandstone, and the Two Medi. cine Formation (mostly shale), Montana Group, Upper Cretaceous. The Virgelle Sand- stone, about 54 meters thick, lies between the shales and behaved as the most competent member...

  9. Ionospheric electron content within the equatorial F2 layer anomaly belt

    SciTech Connect (OSTI)

    Rastogi, R.G.; Klobuchar, J.A.

    1990-11-01T23:59:59.000Z

    This Reprint describes some new results on the day-to-day behavior of the equatorial anomaly in the columnar electron content. The measurements were made from a unique network of stations covering dip latitudes from 0 to 25 N during the period in 1975-1976 near sunspot minimum when the ATS 6 satellite was visible from India. The latitudinal distribution of the total electron content on a particular day was found to depend only on the strength of the electrojet current, as determined by the difference of the horizontal magnetic field at stations on the magnetic equator and another outside the equatorial electrojet, rather than on the horizontal magnetic field measured only at the equatorial station. During magnetically disturbed periods the presence or absence of the anomaly was also found to depend only upon the strength of the electrojet current. The varying electrojet current, that is, the equatorial electric field, is very effective in moving the ionization to the anomaly latitudes of 15-20, but the columnar electron content over the magnetic equator remains relatively constant.

  10. Ionospheric electron content within the equatorial F sub 2 layer anomaly belt

    SciTech Connect (OSTI)

    Rastogi, R.G. (Indian Inst. of Geomagnetism, Bombay (India)); Klobuchar, J.A. (Air Force Geophysics Lab., Hanscom Air Force Base, MA (United States))

    1990-11-01T23:59:59.000Z

    This paper describes some new results on the day-to-day behavior of the location of the equatorial anomaly in the columnar electron content. The measurements were made from a unique network of stations covering dip latitudes from 0{degree}N to 25{degree}N during the period in 1975-1976 near sunspot minimum when the ATS 67 satellite was visible from India. The latitudinal distribution of the total electron content on a particular day was found to depend only on the strength of the electrojet current, as determined by the difference of the horizontal magnetic field at stations on the magnetic equator and another outside the equatorial electrojet, rather than on the horizontal magnetic field measured only at the equatorial station. During magnetically disturbed periods the presence or absence of the anomaly was also found to depend only upon the strength of the electrojet current. The varying electrojet current, that is, the equatorial electric field, is very effective in moving the ionization to the anomaly latitudes of 15{degree}-20{degree}, but the columnar electron content over the magnetic equator remains relatively constant.

  11. Nature or nurture of coplanar Tatooines: the aligned circumbinary Kuiper belt analogue around HD 131511

    E-Print Network [OSTI]

    Kennedy, Grant M.

    2014-12-18T23:59:59.000Z

    . P., Hughes A. M., 2010, ApJ, 710, 462 Armstrong D. J., Osborn H. P., Brown D. J. A., Faedi F., Gomez Maqueo Chew Y., Martin D. V., Pollacco D., Udry S., 2014, MNRAS, 444, 1873 Aumann H. H., 1985, PASP, 97, 885 Bate M. R., Bonnell I. A., Clarke C. J...

  12. Geophys. Res. Lett., 17, 3265, 1998. The Global Response of Relativistic Radiation Belt

    E-Print Network [OSTI]

    Reeves, Geoffrey D.

    -called "recirculation" model [Nishida, 1976]. Although the recirculation model was developed to explain energization-3 days after the passage of the solar wind disturbance and the initial injection of the seed population a coronal mass ejection (CME) produced a magnetic cloud that impacted the Earth's magnetosphere. The solar

  13. Comparison of energetic ions in cusp and outer radiation belt Jiasheng Chen and Theodore A. Fritz

    E-Print Network [OSTI]

    of ionospheric and solar wind particles. The energetic ion intensity, charge composition, energy spectrum; rather, (2) a nonadiabatic energization process would be required to relate the cusp energetic ion [Chen et al., 1997; Chen and Fritz, 2000]. Owing to solar wind pressure, a geomagnetic field minimum

  14. Comet-like mineralogy of olivine crystals in an extrasolar proto-Kuiper belt

    E-Print Network [OSTI]

    de Vries, B L; Blommaert, J A D L; Waelkens, C; Waters, L B F M; Vandenbussche, B; Min, M; Olofsson, G; Dominik, C; Decin, L; Barlow, M J; Brandeker, A; Di Francesco, J; Glauser, A M; Greaves, J; Harvey, P M; Holland, W S; Ivison, R J; Liseau, R; Pantin, E E; Pilbratt, G L; Royer, P; Sibthorpe, B; 10.1038/nature11469

    2012-01-01T23:59:59.000Z

    Some planetary systems harbour debris disks containing planetesimals such as asteroids and comets. Collisions between such bodies produce small dust particles, the spectral features of which reveal their composition and, hence, that of their parent bodies. A measurement of the composition of olivine crystals has been done for the protoplanetary disk HD100546 and for olivine crystals in the warm inner parts of planetary systems. The latter compares well with the iron-rich olivine in asteroids (x<0.29). In the cold outskirts of the Beta Pictoris system, an analogue to the young Solar System, olivine crystals were detected but their composition remained undetermined, leaving unknown how the composition of the bulk of Solar System cometary olivine grains compares with that of extrasolar comets. Here we report the detection of the 69-micrometre-wavelength band of olivine crystals in the spectrum of Beta Pictoris. Because the disk is optically thin, we can associate the crystals with an extrasolar proto-Kuiper b...

  15. Applications of an electrostatic high-voltage tether to radiation belt remediation

    E-Print Network [OSTI]

    Zeineh, Christopher F

    2007-01-01T23:59:59.000Z

    A computational algorithm is developed and executed to calculate the rate of depletion of magnetospheric ions by an electrostatic tether at various altitudes. This computation relies upon past studies in the OML regime of ...

  16. Structural analysis of the perdido fold belt: timing, evolution, and structural style

    E-Print Network [OSTI]

    Waller, Troy Dale, II

    2007-09-17T23:59:59.000Z

    the upper portion consist of fine grained and muddy siliciclastics which are typical of turbidite and other typical deep water deposits. 2-D, prestacked, depth-migrated seismic data (TGS Phase 45) was interpreted in conjunction with Hess Corporation...

  17. Seismic signatures of the Lodgepole fractured reservoir in Utah-Wyoming overthrust belt

    SciTech Connect (OSTI)

    Parra, J.; Collier, H.; Angstman, B.

    1997-08-01T23:59:59.000Z

    In low porosity, low permeability zones, natural fractures are the primary source of permeability which affect both production and injection of fluids. The open fractures do not contribute much to porosity, but they provide an increased drainage network to any porosity. An important approach to characterizing the fracture orientation and fracture permeability of reservoir formations is one based upon the effects of such conditions on the propagation of acoustic and seismic waves in the rock. We present the feasibility of using seismic measurement techniques to map the fracture zones between wells spaced 2400 ft at depths of about 1000 ft. For this purpose we constructed computer models (which include azimuthal anisotropy) using Lodgepole reservoir parameters to predict seismic signatures recorded at the borehole scale, crosswell scale, and 3 D seismic scale. We have integrated well logs with existing 2D surfaces seismic to produce petrophysical and geological cross sections to determine the reservoir parameters and geometry for the computer models. In particular, the model responses are used to evaluate if surface seismic and crosswell seismic measurements can capture the anisotropy due to vertical fractures. Preliminary results suggested that seismic waves transmitted between two wells will propagate in carbonate fracture reservoirs, and the signal can be received above the noise level at the distance of 2400 ft. In addition, the large velocities contrast between the main fracture zone and the underlying unfractured Boundary Ridge Member, suggested that borehole reflection imaging may be appropriate to map and fracture zone thickness variation and fracture distributions in the reservoir.

  18. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Precipitating radiation belt electrons and

    E-Print Network [OSTI]

    Otago, University of

    , Finnish Meteorological Institute, Helsinki, Finland 2 Jet Propulsion Laboratory, California Institute Sounder (MLS/Aura) and Medium Energy Proton and Electron Detector (MEPED/POES) between 2004­2009, we study are influenced much less. Because the time period 2004­2009 analysed here coincided with an extended solar min

  19. FIRE RELATED RULES STATUTES AND LAWS Brandon Belt, Coryell County Attorney

    E-Print Network [OSTI]

    -3180; brandonbelt@aol.com December 16, 2011 GENERAL BURNING RULES AND REGULATIONS Chapter 382, Health and Safety;3 REGULATION OF OUTDOOR BURNING: (BURN BAN) 352.081 Local Government Code Gives Comm. Ct. authority to pipeline, or mining operations (T.A.C. 111.215, Prior approval of TCEQ req'd), or Planting or harvesting

  20. THE LUMINOSITIES OF PROTOSTARS IN THE SPITZER c2d AND GOULD BELT LEGACY CLOUDS

    SciTech Connect (OSTI)

    Dunham, Michael M.; Arce, Hector G. [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520 (United States); Allen, Lori E. [National Optical Astronomy Observatories, Tucson, AZ (United States); Evans II, Neal J.; Harvey, Paul M. [Department of Astronomy, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712-1205 (United States); Broekhoven-Fiene, Hannah; Matthews, Brenda C. [Herzberg Institute, National Research Council of Canada, 5071 W. Saanich Road, Victoria, BC V9E 2E7 (Canada); Chapman, Nicholas L. [Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), Department of Physics and Astronomy, 2145 Sheridan Road, Evanston, IL 60208 (United States); Cieza, Lucas A. [Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 (United States); Gutermuth, Robert A. [Department of Astronomy, University of Massachusetts, Amherst, MA (United States); Hatchell, Jennifer [Astrophysics Group, Physics, University of Exeter, Exeter EX4 4QL (United Kingdom); Huard, Tracy L.; Miller, Jennifer F. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Kirk, Jason M. [School of Physics and Astronomy, Cardiff University, Queens Buildings, The Parade, Cardiff CF24 3AA (United Kingdom); Merin, Bruno [Herschel Science Centre, ESAC-ESA, P.O. Box 78, E-28691 Villanueva de la Canada, Madrid (Spain); Peterson, Dawn E. [Space Science Institute, 4750 Walnut Street, Suite 205, Boulder, CO 80301 (United States); Spezzi, Loredana, E-mail: michael.dunham@yale.edu [European Southern Observatory (ESO), Karl-Schwarzschild-Strasse 2, D-85748 Garching bei Muenchen (Germany)

    2013-04-15T23:59:59.000Z

    Motivated by the long-standing 'luminosity problem' in low-mass star formation whereby protostars are underluminous compared to theoretical expectations, we identify 230 protostars in 18 molecular clouds observed by two Spitzer Space Telescope Legacy surveys of nearby star-forming regions. We compile complete spectral energy distributions, calculate L{sub bol} for each source, and study the protostellar luminosity distribution. This distribution extends over three orders of magnitude, from 0.01 L{sub Sun} to 69 L{sub Sun }, and has a mean and median of 4.3 L{sub Sun} and 1.3 L{sub Sun }, respectively. The distributions are very similar for Class 0 and Class I sources except for an excess of low luminosity (L{sub bol} {approx}< 0.5 L{sub Sun }) Class I sources compared to Class 0. 100 out of the 230 protostars (43%) lack any available data in the far-infrared and submillimeter (70 {mu}m <{lambda} < 850 {mu}m) and have L{sub bol} underestimated by factors of 2.5 on average, and up to factors of 8-10 in extreme cases. Correcting these underestimates for each source individually once additional data becomes available will likely increase both the mean and median of the sample by 35%-40%. We discuss and compare our results to several recent theoretical studies of protostellar luminosities and show that our new results do not invalidate the conclusions of any of these studies. As these studies demonstrate that there is more than one plausible accretion scenario that can match observations, future attention is clearly needed. The better statistics provided by our increased data set should aid such future work.

  1. Monday, 14 July, 2008 Radiation belt electron precipitation by manmade VLF transmissions1

    E-Print Network [OSTI]

    Otago, University of

    -like enhancements produced by the transmitter NPM, despite its low-latitude location and30 relatively high output-generated wisps and the lack of NPM-generated wisps.33 1. Introduction34 The behavior of high energy electrons

  2. THE OCEAN CONVEYOR BELT (Part 1) Stephen Riser, University of Washington

    E-Print Network [OSTI]

    Riser, Stephen C.

    ky) · storage of heat (cold) · sequestration of carbon · climate impacts? #12;#12;Aleutian Islands driven by Ekman pumping or Ekman suction. P E ? > 0 0?

  3. Abstract.-Submersible belt-tran-sect surveys along a rocky bottom were

    E-Print Network [OSTI]

    . Johnson Bonneville Power Administration P.O. Box 3621, Portland. Oregon 97208 William H. Barss Oregon

  4. Satellite observations of mesoscale ocean features and copropagating atmospheric surface fields in the tropical belt

    E-Print Network [OSTI]

    Xie, Shang-Ping

    Satellite observations of mesoscale ocean features and copropagating atmospheric surface fields speed and sea surface temperature (SST) over mesoscale ocean features in certain frontal regions. The aim of this study is to determine to what extent mesoscale ocean dynamics modifies the surface wind

  5. Land regeneration for the 21st Century in the Mersey Belt

    E-Print Network [OSTI]

    · Regenerating brownfield land to woodland. · Extending woodland cover to support the aims of the England investment. · Secured the regeneration of 186 ha of brownfield land and is on target to regenerate a total for leisure and recreation." HM Government's Sustainable Communities Plan · Securing derelict brownfield sites

  6. On the dust environment of Main-Belt Comet 313P/Gibbs

    E-Print Network [OSTI]

    Pozuelos, F J; Licandro, J; Moreno, F

    2015-01-01T23:59:59.000Z

    We present observations carried out using the 10.4 m Gran Telescopio Canarias and an interpretative model of the dust environment of activated asteroid 313P/Gibbs. We discuss three different models relating to different values of the dust parameters, i.e, dust loss rate, maximum and minimum sizes of particles, power index of the size distribution, and emission pattern. The best model corresponds with an isotropic emission of particles which started on August 1st. The size of grains were in the range of $0.1-2000$ $\\mu$m, with velocities for 100 $\\mu$m particles between $0.4-1.9$ m$~$s$^{-1}$, with a dust production rate in the range of $0.2-0.8$ kg$~$s$^{-1}$. The dust tails' brightness and morphology are best interpreted in terms of a model of sustained and low dust emission driven by water-ice sublimation, spanning since 2014 August 1st, and triggered by a short impulsive event. This event produced an emission of small particles of about 0.1 $\\mu$m with velocities of $\\sim$4 m$~$s$^{-1}$. From our model we ...

  7. Power line damage, electrical outages, reduced in the {open_quotes}sleet belt{close_quotes}

    SciTech Connect (OSTI)

    NONE

    1998-04-01T23:59:59.000Z

    Companies that depend on reliable supplies of electricity, as well as electrical utilities, need to defend against weather-related damage and power outages. Weather-related damage claims in the U.S. totaled $16 billion during the ten-year span from 1980 through 1989 and have already reached $48 billion in the first five years of this decade, evidence that climate change could be causing more severe storms. This makes technology that minimizes weather damage all the more welcome. Ice and snow build-up on high-voltage electric power lines in a moderate to high winds causes high-amplitude low-frequency mechanical vibrations, called galloping. When power lines react aero-elastically to these conditions, undamped vibration tears apart transmission towers and fittings or propels lines into each other, shorting out large circuits. Besides causing costly electric system outages and structural damage, this dramatic phenomenon steals power through higher electricity line losses that occur when other conductors have to carry more power to compensate for a tripped or damaged line. In a 1981 survey, 17 of 38 utilities reported that galloping was a moderate to severe problem, and 11 reported that they had a galloping event at least once a year. Fifty-seven percent of the incidents included flashover, and 60% included structural damage.

  8. An experimental investigation of microalgal dewatering efficiency of a belt filter system

    E-Print Network [OSTI]

    Sandip, Anjali

    2014-05-31T23:59:59.000Z

    of algae and nutrient removal in a waste heat utilization process. J. Appl. Phycol., 3, 159-167. Williams, P.J.l.B., Laurens, L.M. 2010. Microalgae as biodiesel & biomass feedstocks: Review & analysis of the biochemistry, energetics & economics. Energy...

  9. GR Focus Review Chemical sedimentary protoliths in the >3.75 Ga Nuvvuagittuq Supracrustal Belt

    E-Print Network [OSTI]

    Konhauser, Kurt

    .O. Konhauser a a Department of Earth and Atmospheric Sciences, 1-26 Earth Sciences Building, UniversityBois, Bât. Géode 3e, Villeurbanne, France d Department of Earth and Environmental Sciences, Boston College­Fe­Mg silicate rocks. The NSB rocks provide a rare glimpse of trace metal availability in Eoarchean (ca. 3800 Ma

  10. Geochemical Evidence for Slab Melting in theTrans-MexicanVolcanic Belt

    E-Print Network [OSTI]

    Langmuir, Charles H.

    and heavy rare earth concentrations and Nb/Ta ratios with increasing SiO2 contents in theVBZ rocks is best OF EARTH AND PLANETARY SCIENCES, HARVARD UNIVERSITY, CAMBRIDGE, MA 02138, USA 3 LAMONT^DOHERTY EARTH OBSERVATORY AND DEPARTMENT OF EARTH AND ENVIRONMENTAL SCIENCES, COLUMBIA UNIVERSITY, 61 RT. 9W, PALISADES, NY

  11. From: Hope Albright To: Congestion Study Comments Subject: Block Grain Belt

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdf Flash2010-60.pdf2 DOEScienceNIETCMunsonNewacheck6:21From:Hope

  12. From: Kathy Mikels To: Congestion Study Comments Subject: STOP CLEAN LINE, BLOCK GRAIN BELT

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdf Flash2010-60.pdf2Jessi O"Bannon To: CongestionJustinKathy

  13. Geologic Setting of the Central Alaskan Hot Springs Belt: Implications for

    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 are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005) | Open Energy(Blackwell, Et Al.,EnergyGeothermal

  14. Flexural interpretation of Mississippian stratigraphy in the Black Warrior basin

    SciTech Connect (OSTI)

    Ettensohn, F.R. (Univ. of Kentucky, Lexington, KY (United States). Dept. of Geological Science); Pashin, J.C. (Geological Survey of Alabama, Tuscaloosa, AL (United States))

    1994-03-01T23:59:59.000Z

    Interpretation of Mississippian rocks in the Black Warrior basin and adjacent parts of the Appalachian basin using basic viscoelastic flexural models suggests that this sequence of rocks is largely a response to deformational loading and relaxation accompany early phases of Ouachita orogeny. A Kinderhook-Valmeyer unconformity atop the Maury Shale apparently represents an initial tectophase of Ouachita orogeny too distant to affect the basin otherwise. However, a Valmeyer-Chesterian unconformity atop the Tuscumbia, along which the Genevievian Stage is absent or condensed, indicates that a second Ouachita tectophase had become localized along the southwest part of alabama promontory, close enough to generate the Black Warrior foreland basin, fill it with a flexural sequence of sediments, and alter sedimentation patterns in nearby parts of the Appalachian basin.

  15. Notes for STA 250, Radford M. Neal, 2000 How Well Can We Predict?

    E-Print Network [OSTI]

    Neal, Radford M.

    was on ­1000 0 500 1500 Residual Motorized_belts d&p_airbags d_airbag manual_belts passive_belts Type

  16. Regional geology of eastern Idaho and western Wyoming

    SciTech Connect (OSTI)

    Link, P.K.; Kuntz, M.A.; Platt, L.B. (eds.)

    1993-01-01T23:59:59.000Z

    The first section, Regional Synthesis, consists of a single 53-page chapter entitled The track of the Yellowstone hot spot: Volcanism faulting, and uplift.'' The authors' approach is to interpret major features or regional geology as resulting in large part from the last 16 Ma of southwesterly migration by the North American plate over a stationary thermal plume in the mantle. Evidence that may relate to the Yellowstone hot spot model is presented under headings dealing with volcanic track of the hot spot, neotectonic faulting associated with the hot spot, and regional topographic anomalies which may have resulted from hot spot-induced uplift or subsidence. The second section of the book deals with the Idaho-Wyoming thrust belt. Each chapter is a separate article by different authors, so coverage is of selected topics in the Idaho-Wyoming thrust belt rather than a comprehensive overview. Extensional tectonics is the topic of the book's third section. Field investigations of two major structures, the Grand Valley fault and the Teton normal fault, are presented in chapters eight and nine, respectively. Chapter ten focuses on surficial gravity slide sheets that are well-exposed in the area, with particular emphasis on their structural features and mechanisms of emplacement. The final 90 pages of the book make up a four-chapter section that deals with the eastern Snake River plain (ESRP). Topical coverage is quite varied, ranging from details of Quaternary stratigraphy at one site to an overview of the eastern Snake River plain basaltic volcanism and an investigation of ignimbrites of the Heise volcanic field.

  17. Cenozoic oblique collision of South American and Caribbean plates: New evidence in the Coastal Cordillera of Venezuela and Trinidad

    SciTech Connect (OSTI)

    Speed, R.C. (Northwestern Univ., Evanston, IL (United States)); Russo, R.M. (Carnegie Institute of Washington (United States)); Foland, K.A. (Ohio State Univ., Columbus (United States))

    1993-02-01T23:59:59.000Z

    The hinterland of the Caribbean Mts. orogen in Trinidad and Venezuela contains schist and gneiss whole protoliths are wholly or partly of continental provenance. The hinterland lies between the foreland thrust belt and terranes. The terranes are alien to continental South America (SA) and may have proto-Caribbean or Caribbean plate origins. The hinterland rocks were widely thought to come from sediments and granitoids of Mesozoic protolithic ages and to be of Cretaceous metamorphic age. Such rocks are now know to be of at least two or more types, as follows: (1) low grade, protoliths of pre-Mesozoic basement and shelfal cover of uncertain age range, inboard locus, Oligocene to mid-Miocene metamorphic ages younging eastward (Caracas, Paria, and Northern Range belts), and (2) higher grade including high P/T, varies protoliths of uncertain age range, Cretaceous and ( )early Paleogene metamorphic ages (Tacagua, Araya, Margarita). The geometry, protoliths, structures, and metamorphic ages of type 1 parautochthoneity and an origin as a thickened wedge of crust-cored passive margin cover. The wedge grew by accretion between about 35 and 20 Ma during oblique transport toward the foreland. The diachroneity of metamorphism implies, as does the timing of foreland deformation, that the wedge evolved in a right-oblique collision between northern SA and terranes moving wholly or partly with the Caribbean plate since the Eocene. Type 2 rocks probably came with the terranes and are products of convergent zone tectonics, either in the proto-Caribbean plate. The hinterland boundaries are brittle thrusts that are out of sequence and imply progressive contraction from mid-Cenozoic to the present.

  18. Understory vegetation 3 years after implementing uneven-aged silviculture in a shortleaf pine-oak stand. Forest Service research paper

    SciTech Connect (OSTI)

    Shelton, M.G.; Murphy, P.A.

    1997-09-01T23:59:59.000Z

    The effects of retaining overstory hardwoods on understory vegetation were determined after implementing uneven-aged silviculture using single-tree selection in a shortleaf pin-oak stand (Pinus echinata Mill. and Quercus spp.) in the Ouachita Mountains. Treatments were the following hardwood basal areas (square feet per acre) and spatial arrangement: 0, 15-grouped, 15 scattered, 30-scattered, and untreated control.

  19. MODELING THE DISTRIBUTION OF THE DWARF PALMETTO (SABAL MINOR; ARECACEAE) IN MCCURTAIN COUNTY, OKLAHOMA

    E-Print Network [OSTI]

    Butler, Christopher J.

    , OKLAHOMA CHRISTOPHER J. BUTLER,* JENNIFER L. CURTIS, KIMBERLY MCBRIDE, DAVID ARBOUR, AND BERLIN HECK Department of Biology, University of Central Oklahoma, 100 North University Drive, Edmond, OK 73034 (CJB, JC, KM) Oklahoma Ranger District, Ouachita National Forest, Route 4, Box 2900, Broken Bow, OK 74728 (DA

  20. Provenance and diagenesis of the Ivishak Sandstone, northern Alaska

    E-Print Network [OSTI]

    Burch, Gary Kenneth

    1984-01-01T23:59:59.000Z

    . The major detrital species it contains include: a) quartz (49X), dominantly reworked sedimentary and volcanic monocrystalline quartz and metamorphic polycrystalline quartz; b) chert (18/), contain- ing variable amounts of inclusions (clay and carbonate...- stone, Black Warrior basin and the Ouachitas: Q repre- sents monocrystalline quartz, polycrystalline quartz and chert; F represents total feldspar; L represents total lithic fragments. . . . . . . . . . . . . . . . . . . . ~ 52 19 Triangular Q FL...

  1. More wells will expand knowledge of Knox group, Black Warrior basin

    SciTech Connect (OSTI)

    Raymond, D.E. (Geological Survey of Alabama, Tuscaloosa, AL (US))

    1991-05-20T23:59:59.000Z

    The Arbuckle group of the Arkoma, Ardmore, and Anadarko basins was essentially untested in 1986. This paper reports that in these basins, shallower Pennsylvanian reservoirs were easy to reach and more economical to develop. The general consensus was that if a karstic reservoir was not present at the top of the Arbuckle group then there was no potential for oil and gas. Today the story is different; production zones are being found throughout the Arbuckle group, and drilling has been as deep as 28,000 ft. The Black Warrior basin is in a similar setting to the Arkoma, it is a foreland basin that has produced from multiple Mississippian and Pennsylvanian horizons at shallow depths. The Knox carbonate is present in a similar structural setting to that of the Arbuckle group at depths generally above 15,000 ft. In addition, Alabama is even more fortunate in that the buried Appalachian fold and thrust belt along the southern boundary of the basin also provides additional Knox targets with great promise. In this area Knox dolomites are fractured and folded and are juxtaposed by thrust faulting against Mississippian and Pennsylvanian rocks that are excellent sources of oil and gas. Therefore, the Knox is essentially untested in the Black Warrior basin.

  2. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 103,NO. B5,PAGES 10,161-10,176,MAY 10, 1998 Episodic imbricate thrusting and underthrusting'

    E-Print Network [OSTI]

    Demouchy, Sylvie

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 103,NO. B5,PAGES 10,161-10,176,MAY 10, 1998 Episodic. Copyright 1998 by the American GeophysicalUnion. Paper number 97JB03541. 0148-0227/ 98/ 97JB-03541

  3. A survey of ideal fluid propeller theories and a study of the effects of aerodynamic propeller loading on trailing vortex induced velocity and thrust

    E-Print Network [OSTI]

    Kelley, Edward Madison

    1969-01-01T23:59:59.000Z

    respectively . The resultant velocity V acting on the blade element at an angle of attack H& is VB = (W w uP) ~(X'M-4 ) W+w The blad. e angle Q?is os= ~~+ P~ where Ps= Arctan Toe lift force, L, on the blade element is associated. with the circulation, K... is , ~?(v. -, & &~& The ideal propulsion efficiency of the propeller is defined as the ratio of the useful work performed (T V ) to the total work required in turning the propeller (W Q), i. e. , Now we see that ~1 Q is T(Vo + wp), thus or in terms...

  4. Thrust -wrench interference tectonics in the Gulf of Cadiz (Africa -Iberia plate boundary in the North-East Atlantic): insights from

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , Geofísica e Energia, Campo Grande, Ed. C8, piso 0, 1749-016 Lisboa, Portugal Abstract In the Gulf of Cadiz, 1979; Johnston, 1996; Martinez-Solares and A

  5. Whether you want to improve your career, life or community, find what you're searching for at the

    E-Print Network [OSTI]

    Saldin, Dilano

    Evaluation Certification Labor Relations Lean Six Sigma Yellow Belt Management Competencies Master Trainer Excellence Six Sigma Black Belt for Services and Transactions Six Sigma Green Belt for Services Electrical Engineering Plastics Technology Six Sigma Black Belt Training Water Technology GOv

  6. Electron Acceleration and Loss in the Earth'sElectron Acceleration and Loss in the Earth's Radiation Belts: The Contribution of WaveRadiation Belts: The Contribution of Wave--

    E-Print Network [OSTI]

    Chan, Anthony Arthur

    Darkening of glassy surfaces Solar cell degradationSolar cell degradation Thermal control degradation be attributed clearly to Space WeatherWeather #12;Cost EstimatesCost Estimates Modern telecommunications

  7. Sedimentation and basin-fill history of the Neogene clastic succession exposed in the southeastern fold belt of the

    E-Print Network [OSTI]

    Kulp, Mark

    and exploitation strategy for hydrocarbon plays that may prove vital to the oil companies engaged in exploration of reference for tide-dominated regressive shelf depositional systems. The top of the composite sequence B

  8. The Hubble Wide Field Camera 3 Test of Surfaces in the Outer Solar System: Spectral Variation on Kuiper Belt Objects

    E-Print Network [OSTI]

    Fraser, Wesley C; Glass, Florian

    2015-01-01T23:59:59.000Z

    Here we present additional photometry of targets observed as part of the Hubble Wide Field Camera 3 Test of Surfaces in the Outer Solar System. 12 targets were re-observed with the Wide Field Camera 3 in optical and NIR wavebands designed to compliment those used during the first visit. Additionally, all observations originally presented by Fraser and Brown (2012) were reanalyzed through the same updated photometry pipeline. A reanalysis of the optical and NIR colour distribution reveals a bifurcated optical colour distribution and only two identifiable spectral classes, each of which occupies a broad range of colours and have correlated optical and NIR colours, in agreement with our previous findings. We report the detection of significant spectral variations on 5 targets which cannot be attributed to photometry errors, cosmic rays, point spread function or sensitivity variations, or other image artifacts capable of explaining the magnitude of the variation. The spectrally variable objects are found to have ...

  9. Locating the planetesimals belts in the multiple-planet systems HD 128311, HD 202206, HD 82943 and HR 8799

    E-Print Network [OSTI]

    Moro-Martin, Amaya; Bryden, Geoffrey; Rieke, George H; Su, Kate Y L; Beichman, Charles A; Lawler, Samantha M

    2010-01-01T23:59:59.000Z

    In addition to the Sun, six other stars are known to harbor multiple planets and debris disks: HD 69830, HD 38529, HD 128311, HD 202206, HD 82943 and HR 8799. In this paper we set constraints on the location of the dust-producing planetesimals around the latter four systems. We use a radiative transfer model to analyze the spectral energy distributions of the dust disks (including two new Spitzer IRS spectra presented in this paper), and a dynamical model to assess the long-term stability of the planetesimals' orbits. As members of a small group of stars that show evidence of harboring a multiple planets and planetesimals, their study can help us learn about the diversity of planetary systems.

  10. THE EFFECT OF IN SITU ALTERATION ON GOLD COMPOSITION AT NYARKAGWE, SUKUMALAND GREENSTONE BELT, NW-TANZANIA

    E-Print Network [OSTI]

    to mineraiogical reactions and a change of temperature (initially high and later continuously de creasing of water incorporated In hydrous minerals due to the reaction of hot saline brines with country rock of deposition). Shear zones and quartz veins acted as chimneys for heat release due to hot fluid transfer

  11. Steady-State Impurity Control, Heat Removal and Tritium Recovery by Moving-Belt Plasma-Facing Components

    E-Print Network [OSTI]

    Tillack, Mark

    erosion may increase due to the reduced redeposition efficiency of radiation-cooled plasmas and also due in DIII-D was achieved by combined helium glow discharge and boronization [4]. Recently, lithium wall To review innovative PFC concepts, in 1974 the liquid lithium divertor was proposed in the UWMAK-I reactor

  12. Composition of Potentially Hazardous Asteroid (214869) 2007 PA8: An H Chondrite from the Outer Asteroid Belt

    E-Print Network [OSTI]

    Sanchez, Juan A; Dykhuis, Melissa; Lindsay, Sean; Corre, Lucille Le

    2015-01-01T23:59:59.000Z

    Potentially hazardous asteroids (PHAs) represent a unique opportunity for physical characterization during their close approaches to Earth. The proximity of these asteroids makes them accessible for sample-return and manned missions, but could also represent a risk for life on Earth in the event of collision. Therefore, a detailed mineralogical analysis is a key component in planning future exploration missions and developing appropriate mitigation strategies. In this study we present near-infrared spectra (0.7-2.55 microns) of PHA (214869) 2007 PA8 obtained with the NASA Infrared Telescope Facility during its close approach to Earth on November 2012. The mineralogical analysis of this asteroid revealed a surface composition consistent with H ordinary chondrites. In particular, we found that the olivine and pyroxene chemistries of 2007 PA8 are Fa18(Fo82) and Fs16, respectively. The olivine-pyroxene abundance ratio was estimated to be 47%. This low olivine abundance and the measured band parameters, close to t...

  13. THE SPITZER SURVEY OF INTERSTELLAR CLOUDS IN THE GOULD BELT. III. A MULTI-WAVELENGTH VIEW OF CORONA AUSTRALIS

    SciTech Connect (OSTI)

    Peterson, Dawn E.; Bourke, Tyler L.; Forbrich, Jan; Patten, Brian M. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Caratti o Garatti, Alessio [Dublin Institute for Advanced Studies, Dublin 2 (Ireland); Gutermuth, Robert A. [Five College Astronomy Department, Smith College, Northampton, MA 01063 (United States); Joergensen, Jes K. [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen K. (Denmark); Allen, Lori E. [National Optical Astronomy Observatory, Tucson, AZ 85719 (United States); Dunham, Michael M.; Harvey, Paul M.; Evans, Neal J. [Department of Astronomy, University of Texas at Austin, Austin, TX 78712-0259 (United States); MerIn, Bruno [Herschel Science Centre, European Space Astronomy Centre (ESA), 28691 Villanueva de la Canada, Madrid (Spain); Chapman, Nicholas L. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Cieza, Lucas A. [Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 (United States); Huard, Tracy L.; Knez, Claudia; Prager, Brian, E-mail: dpeterson@cfa.harvard.edu [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States)

    2011-06-01T23:59:59.000Z

    We present Spitzer Space Telescope IRAC and MIPS observations of a 0.85 deg{sup 2} field including the Corona Australis (CrA) star-forming region. At a distance of 130 pc, CrA is one of the closest regions known to be actively forming stars, particularly within its embedded association, the Coronet. Using the Spitzer data, we identify 51 young stellar objects (YSOs) in CrA which include sources in the well-studied Coronet cluster as well as sources distributed throughout the molecular cloud. Twelve of the YSOs discussed are new candidates, one of which is located in the Coronet. Known YSOs retrieved from the literature are also added to the list, and a total of 116 candidate YSOs in CrA are compiled. Based on these YSO candidates, the star formation rate is computed to be 12 M{sub sun} Myr{sup -1}, similar to that of the Lupus clouds. A clustering analysis was also performed, finding that the main cluster core, consisting of 68 members, is elongated (having an aspect ratio of 2.36), with a circular radius of 0.59 pc and mean surface density of 150 pc{sup -2}. In addition, we analyze outflows and jets in CrA by means of new CO and H{sub 2} data. We present 1.3 mm interferometric continuum observations made with the Submillimeter Array (SMA) covering R CrA, IRS 5, IRS 7, and IRAS 18595-3712 (IRAS 32). We also present multi-epoch H{sub 2} maps and detect jets and outflows, study their proper motions, and identify exciting sources. The Spitzer and ISAAC/VLT observations of IRAS 32 show a bipolar precessing jet, which drives a CO(2-1) outflow detected in the SMA observations. There is also clear evidence for a parsec-scale precessing outflow, which is east-west oriented and originates in the SMA 2 region and likely driven by SMA 2 or IRS 7A.

  14. An evaluation of a weight-lifting belt and back injury prevention training class for fleet service clerks

    E-Print Network [OSTI]

    Reddell, Cheryl Renee?

    1991-01-01T23:59:59.000Z

    or sneeze. If you are seated and cannot stand. lean back in your chair. Always avoid leaning forward at the waist. RECURRENCE: The next time you feel the warning signs of impending back pain: Use the first aid techniques ? ice massage, anti..., or leg pain, see your doctor and follow his advice. 40 FIRST AID- A-I-M- ANTI-INFLAMMATORIES, ICE MASSAGE, MOVEMENT ANTI-INFLAMMATORIESt Aspirin or ibuprofen will decrease the inflammation present in the nerves. You might try taking 3 aspirin...

  15. A Pacific Moisture Conveyor Belt and Its Relationship to a Significant Precipitation Event in the Semiarid Southwestern United States

    E-Print Network [OSTI]

    Williams, Justin

    with the University of Wisconsin- Nonhydrostatic Modeling System, as well as analysis data, surface observations with different influence factors can be distinguished. 1) Close to the COL center, moist tropical air is overrun extraordinary cool season precipitation events in western North America to bands of enhanced moisture transport

  16. Wednesday, 06 October, 2010 Contrasting the efficiency of radiation belt losses caused by ducted and non-1

    E-Print Network [OSTI]

    Otago, University of

    -ducted transmissions originating from NPM34 generated electron flux enhancements. While the waves originating from that the enhancements from NPM are at least 50 times smaller than those from NWC. This37 suggests that lower latitude

  17. The sedimentological and geotechnical characteristics of the lower continental slope and rise of the Mississippi Fan fold belt

    E-Print Network [OSTI]

    Ramazanova, Rahila

    2001-01-01T23:59:59.000Z

    The study is based on geological and geotechnical laboratory testing data of 70 three inch diameter piston cores. Concentration is along the Sigsbee Escarpment in a grid area between 90? and 91?W and 26.7? and 27.3?N. Water depth ranges from 1...

  18. Mid-Cretaceousto Tertiary ThermotectonicHistory of Former Mid-CrustalRocks, Southern Omineca Belt, Canadian Cordillera

    E-Print Network [OSTI]

    Gibson, Dan

    , Ontario, Canada October, 1993 copyright 01993, Robert John Scarnmell #12;ABSTRACT Geological research of a system of large-scalenormal faults. It comprisesa polydeforrned sillimanite to have followed a composite cooling path which has four stages. (1)Initial rapid cooling (-20 "C

  19. Major Oil Plays in Utah and Vicinity

    SciTech Connect (OSTI)

    Thomas C. Chidsey; Craig D. Morgan; Kevin McClure; Douglas A. Sprinkel; Roger L. Bon; Hellmut H. Doelling

    2003-12-31T23:59:59.000Z

    Utah oil fields have produced over 1.2 billion barrels (191 million m{sup 3}). However, the 13.7 million barrels (2.2 million m{sup 3}) of production in 2002 was the lowest level in over 40 years and continued the steady decline that began in the mid-1980s. The Utah Geological Survey believes this trend can be reversed by providing play portfolios for the major oil-producing provinces (Paradox Basin, Uinta Basin, and thrust belt) in Utah and adjacent areas in Colorado and Wyoming. Oil plays are geographic areas with petroleum potential caused by favorable combinations of source rock, migration paths, reservoir rock characteristics, and other factors. The play portfolios will include: descriptions and maps of the major oil plays by reservoir; production and reservoir data; case-study field evaluations; locations of major oil pipelines; identification and discussion of land-use constraints; descriptions of reservoir outcrop analogs; and summaries of the state-of-the-art drilling, completion, and secondary/tertiary techniques for each play. This report covers research activities for the sixth quarter of the project (October 1 through December 31, 2003). This work included describing outcrop analogs for the Jurassic Twin Creek Limestone and Mississippian Leadville Limestone, major oil producers in the thrust belt and Paradox Basin, respectively, and analyzing best practices used in the southern Green River Formation play of the Uinta Basin. Production-scale outcrop analogs provide an excellent view of reservoir petrophysics, facies characteristics, and boundaries contributing to the overall heterogeneity of reservoir rocks. They can be used as a ''template'' for evaluation of data from conventional core, geophysical and petrophysical logs, and seismic surveys. In the Utah/Wyoming thrust belt province, the Jurassic Twin Creek Limestone produces from subsidiary closures along major ramp anticlines where the low-porosity limestone beds are extensively fractured and sealed by overlying argillaceous and non-fractured units. The best outcrop analogs for Twin Creek reservoirs are found at Devils Slide and near the town of Peoa, Utah, where fractures in dense, homogeneous non-porous limestone beds are in contact with the basal siltstone units (containing sealed fractures) of the overlying units. The shallow marine, Mississippian Leadville Limestone is a major oil and gas reservoir in the Paradox Basin of Utah and Colorado. Hydrocarbons are produced from basement-involved, northwest-trending structural traps with closure on both anticlines and faults. Excellent outcrops of Leadville-equivalent rocks are found along the south flank of the Uinta Mountains, Utah. For example, like the Leadville, the Mississippian Madison Limestone contains zones of solution breccia, fractures, and facies variations. When combined with subsurface geological and production data, these outcrop analogs can improve (1) development drilling and production strategies such as horizontal drilling, (2) reservoir-simulation models, (3) reserve calculations, and (4) design and implementation of secondary/tertiary oil recovery programs and other best practices used in the oil fields of Utah and vicinity. In the southern Green River Formation play of the Uinta Basin, optimal drilling, development, and production practices consist of: (1) owning drilling rigs and frac holding tanks; (2) perforating sandstone beds with more than 8 percent neutron porosity and stimulate with separate fracture treatments; (3) placing completed wells on primary production using artificial lift; (4) converting wells relatively soon to secondary waterflooding maintaining reservoir pressure above the bubble point to maximize oil recovery; (5) developing waterflood units using an alternating injector--producer pattern on 40-acre (16-ha) spacing; and (6) recompleting producing wells by perforating all beds that are productive in the waterflood unit. As part of technology transfer activities during this quarter, an abstract describing outcrop reservoir analogs was accepted by the American Assoc

  20. MAJOR OIL PLAYS IN UTAH AND VICINITY

    SciTech Connect (OSTI)

    Thomas C. Chidsey, Jr.

    2003-01-01T23:59:59.000Z

    Utah oil fields have produced a total of 1.2 billion barrels (191 million m{sup 3}). However, the 15 million barrels (2.4 million m{sup 3}) of production in 2000 was the lowest level in over 40 years and continued the steady decline that began in the mid-1980s. The Utah Geological Survey believes this trend can be reversed by providing play portfolios for the major oil producing provinces (Paradox Basin, Uinta Basin, and thrust belt) in Utah and adjacent areas in Colorado and Wyoming. Oil plays are geographic areas with petroleum potential caused by favorable combinations of source rock, migration paths, reservoir rock characteristics, and other factors. The play portfolios will include: descriptions and maps of the major oil plays by reservoir; production and reservoir data; case-study field evaluations; summaries of the state-of-the-art drilling, completion, and secondary/tertiary techniques for each play; locations of major oil pipelines; descriptions of reservoir outcrop analogs; and identification and discussion of land use constraints. All play maps, reports, databases, and so forth, produced for the project will be published in interactive, menu-driven digital (web-based and compact disc) and hard-copy formats. This report covers research activities for the first quarter of the first project year (July 1 through September 30, 2002). This work included producing general descriptions of Utah's major petroleum provinces, gathering field data, and analyzing best practices in the Utah Wyoming thrust belt. Major Utah oil reservoirs and/or source rocks are found in Devonian through Permian, Jurassic, Cretaceous, and Tertiary rocks. Stratigraphic traps include carbonate buildups and fluvial-deltaic pinchouts, and structural traps include basement-involved and detached faulted anticlines. Best practices used in Utah's oil fields consist of waterflood, carbon-dioxide flood, gas-injection, and horizontal drilling programs. Nitrogen injection and horizontal drilling programs have been successfully employed to enhance oil production from the Jurassic Nugget Sandstone (the major thrust belt oil-producing reservoir) in Wyoming's Painter Reservoir and Ryckman Creek fields. At Painter Reservoir field a tertiary, miscible nitrogen-injection program is being conducted to raise the reservoir pressure to miscible conditions. Supplemented with water injection, the ultimate recovery will be 113 million bbls (18 million m{sup 3}) of oil (a 68 percent recovery factor over a 60-year period). The Nugget reservoir has significant heterogeneity due to both depositional facies and structural effects. These characteristics create ideal targets for horizontal wells and horizontal laterals drilled from existing vertical wells. Horizontal drilling programs were conducted in both Painter Reservoir and Ryckman Creek fields to encounter potential undrained compartments and increase the overall field recovery by 0.5 to 1.5 percent per horizontal wellbore. Technology transfer activities consisted of exhibiting a booth display of project materials at the Rocky Mountain Section meeting of the American Association of Petroleum Geologists, a technical presentation to the Wyoming State Geological Survey, and two publications. A project home page was set up on the Utah Geological Survey Internet web site.

  1. Overview of oil and gas potential in Mississippi

    SciTech Connect (OSTI)

    Devery, D.M.

    1982-12-01T23:59:59.000Z

    Today, 2 geologic provinces in Mississippi are actively explored for hydrocarbons. These are the Mississippi Interior Salt Basin and the Black Warrior Basin. Of these 2 basins, the Interior Salt Basin is by far the more productive. The Salt Basin is situated in central and S. Mississippi and is bounded to the north by the buried Ouachita Mountains and by the Wiggins Anticline to the south. There are 61 identified salt domes in this basin as well as countless unidentified deep-seated salt diapirs; the latter are marked by deformation of surrounding and overlying strata. Salt tectonics are closely related to formation of structural traps for hydrocarbon accumulation within the Salt Basin. The second exploration province is the Black Warrior Basin, a Paleozoic structural feature bounded by the buried Ouachita Mountains to the southwest and the buried Appalachian Mountains to the southeast.

  2. Facies analysis of the Caballero Formation and the Andrecito Member of the Lake Valley Formation (Mississippian): implications for Waulsortian bioherm inception, Alamo Canyon area, Sacramento Mountains, New Mexico

    E-Print Network [OSTI]

    Byrd, Thomas Martin

    1989-01-01T23:59:59.000Z

    paleo-equatorial region connecting different biotic provinces on either side of the arch (Sando et al, 1975). Far to the south, deeper waters of the incipient Ouachita trough separated North America from Gondwanaland (Walper, 1977; Scotese et al, 1979... section is approximately 70 ft thick and comprises the Onate, Sly Gap, and Percha Formations (Pray, 1961) (Figure 8). These units are poorly exposed. The Onate Formation iS composed of silty dolomite, shale, siltstone and sandstone. The Sly Gap...

  3. Local Attentional Bias Increases Approach Motivation: Evidence from Event-Related Potentials and Frequency Analyses

    E-Print Network [OSTI]

    Gable, Philip Arvis

    2011-08-08T23:59:59.000Z

    Harmon-Jones Committee Members, Kelly Haws Brandon Schmeichel Barry Setlow Head of Department, Les Morey May 2010 Major Subject: Psychology iii ABSTRACT Local Attentional Bias Increases Approach Motivation...: Evidence from Event-Related Potentials and Frequency Analyses. (May 2010) Philip Arvis Gable, B.A., Ouachita Baptist University; M.S., Texas A&M University Chair of Advisory Committee: Dr. Eddie Harmon-Jones Over twenty years of research have examined...

  4. Graduate and Professional Programs (GAPP)

    E-Print Network [OSTI]

    Rohs, Remo

    Hospital Association, Lean and Six Sigma for Southern California Edison, Business Acumen Series: Aviation Security, Lean Six Sigma White Belt, Six Sigma Green Belt (7 Sessions), Six Sigma Black Belt (3

  5. The nature of transition from adakitic to non-adakitic magmatism in a slabwindow setting: A synthesis from the eastern Pontides, NE Turkey

    E-Print Network [OSTI]

    Eyuboglu, Yener

    The eastern Pontides orogenic belt provides a window into continental arc magmatism in the AlpineHimalayan belt. The late MesozoicCenozoic geodynamic evolution of this belt remains controversial. Here we focus on the ...

  6. Space System Architecture

    E-Print Network [OSTI]

    McManus, Dr. Hugh

    Final Report of SSPARC: the Space Systems, Policy, and Architecture Research Consortium (Thrust II and III)

  7. DOE External Advisory Mee4ng: Dec, 2013 Atlan&c Offshore Wind Consor&um

    E-Print Network [OSTI]

    Firestone, Jeremy

    bending strain Simultaneous SCADA Independent measurements of thrust, torque pitch Calibra&on via SCADA torque

  8. To be published in Earth, Moon, and Planets from the Proceedings of the First Decadal Review of the Edgeworth-Kuiper-Belt -Towards New Frontiers, European

    E-Print Network [OSTI]

    Richardson, John

    To be published in Earth, Moon, and Planets from the Proceedings of the First Decadal Review CLOUD OBJECTS AT PLASMA TO COSMIC RAY ENERGY JOHN F. COOPER Raytheon Technical Services Company, SSDOO present model flux spectra derived from spacecraft data and models for eV to GeV protons at 40 AU

  9. The Diversity of Meningococcal Carriage Across the African Meningitis Belt and the Impact of Vaccination With a Group A Meningococcal Conjugate Vaccine

    E-Print Network [OSTI]

    The MenAfriCar consortium

    2015-04-09T23:59:59.000Z

    are as follows: Armauer Hansen Research Institute, Addis Ababa, Ethiopia: Oumer Ali, Abraham Aseffa (principal investigator [PI]), Ahmed Bedru, Tsehaynesh Lema, Tesfaye Moti, Yenenesh Tekletsion, Alemayehu Worku, Haimanot Guebre Xabher (deceased), and Lawrence... (Amit Bhasin, Elizabeth Huntley, Karen Williams, Karen Slater, and Lyanne Wylde), for their strong logistic support of the work of the con- sortium across Africa; and the national health and local authorities of each participating country, for their full...

  10. Source and tectono-metamorphic evolution of mafic and pelitic metasedimentary rocks from the central Quetico metasedimentary belt, Archean Superior Province

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Source and tectono-metamorphic evolution of mafic and pelitic metasedimentary rocks from, was conducted in order to evaluate the origin, source and evolution of sedimentary rocks, including mafic rocks previously mapped as ultramafics rocks. Bulk chemical compositions of these rocks show a mixing with two end

  11. Differential Virulence of Clinical and Bovine-Biased Enterohemorrhagic Escherichia coli O157:H7 Genotypes in Piglet and Dutch Belted Rabbit Models

    E-Print Network [OSTI]

    Garcia, Alexis

    Enterohemorrhagic Escherichia coli O157:H7 (EHEC O157) is an important cause of food and waterborne illness in the developed countries. Cattle are a reservoir host of EHEC O157 and a major source of human exposure through ...

  12. [The Journal of Geology, 2003, volume 111, p. 5770] 2003 by The University of Chicago. All rights reserved. 0022-1376/2003/11101-0004$15.00 Thrusting and Extension in the Southern Dora-Maira

    E-Print Network [OSTI]

    Dov, Avigad

    ) and in the Zermatt-Saas oce- anic sequence (Reinecke 1991). U/Pb ages (Tilton et al. 1991; Gebauer et al. 1997 that the UHP rocks at- tained 250 C at ca. 29 Ma, implying very rapid cool- ing and decompression (see also

  13. Cusiana trend exploration, Llanos Foothills thrustbelt, Colombia: The opening of a new hydrocarbon province

    SciTech Connect (OSTI)

    O'Leary, J.; Hayward, T.; Addison, F. (BP Exploration, Bogota (Colombia)); Espinosa, G. (Ecopetrol, Bogota (Colombia))

    1996-01-01T23:59:59.000Z

    The Llanos Foothills petroleum trend of the Eastern Cordillera in Colombia containing the giant Cusiana Field has proven to be one of the most exciting hydrocarbon provinces discovered in recent years. The Llanos Foothills trend is a fold and thrust belt with cumulative discovered reserves to date of nearly 6 billion barrels of oil equivalent. This paper summarizes the critical exploration techniques used in unlocking the potential of this major petroleum system. The first phase of exploration in the Llanos Foothills lasted from the early 1960's to the mid-70's. Several large structures defined by surface geology and seismic data were drilled. Although no major discoveries were made, evidence of a petroleum play was found. The seismic imaging and drilling technology combined with the geological understanding which was then available did not allow the full potential of the trend to be realized. In the late 1980's better data and a revised geological perception of the trend led BP, Triton and Total into active exploration, which resulted in the discovery of the Cusiana Field. The subsequent discovery of the Cupiagua, Volcanera, Florena and Pauto Sur Fields confirmed the trend as a major hydrocarbon province. The exploration programme has used a series of geological and geophysical practices and techniques which have allowed the successful exploitation of the trend. The critical success factor has been the correct application of technology in seismic acquisition and recessing and drilling techniques.

  14. Micromachined Inertial Sensors State of the Art and a Look into the Future

    E-Print Network [OSTI]

    Kraft, Michael

    exists, mainly in the automotive industry for safety systems such as airbag release, seat belts control

  15. CTS Annual Transportation Research Conference April 28, 2010

    E-Print Network [OSTI]

    Minnesota, University of

    Understanding the Problem Minnesota 2007 SHSP! Critical Emphasis Areas (CEAs)! 1.! Seat belt use/airbag

  16. Deep in the Heart of Dixie: Pre-Alleghanian Eclogite and HP Granulite Metamorphism in the Carolina Terrane,

    E-Print Network [OSTI]

    Shervais, John W.

    greenschist facies metavolcanic rocks of the Carolina slate belt (to the SE) and amphibolite facies postdate formation of the Charlotte belt and Slate belt arcs (620 to 550 Ma). Comparison with other medium terrane (Carolina Slate belt) formed separate terranes. The collisional event represented by these high

  17. Security Framework for Correct and Secure Positioning in V2X Communication Networks

    E-Print Network [OSTI]

    Weske, Mathias

    . Different law prescriptions such as safety-belt laws, antiblocking brake systems (ABS), airbags, and other

  18. Abstract--Road intersections represent one of the most complex configurations encountered when traversing road

    E-Print Network [OSTI]

    Boyer, Edmond

    designed to protect vehicle occupants. Passive systems include safety belts, air-bags, etc. they function

  19. STORMREADY! Winter weather at Appalachian usually includes snow, ice, freezing rain, and sleet from November through April. Those that have spent several years in the Boone area understand how quickly the weather can

    E-Print Network [OSTI]

    Rose, Annkatrin

    and signals. Inspect: Check your vehicle's tires, wiper blades, fluids, lights, belts and hoses. Time: Allow

  20. Heat-flow reconnaissance of the Gulf Coastal Plain

    SciTech Connect (OSTI)

    Smith, D.L.; Shannon, S.S. Jr.

    1982-04-01T23:59:59.000Z

    Most of the 46 new values of heat flow determined for the Gulf Coastal Plain are in the low to normal range, but heat-flow values averaging 1.8 heat-flow unit (HFU) were obtained in Claiborne, Ouachita, and Union parishes, Louisiana. Moreover, a zone of relatively high heat-flow values and steep thermal gradients (35 to 46/sup 0/C/km) extends from northern Louisiana into southwestern Mississippi. Also near Pensacola, Florida, temperatures of 50/sup 0/C at 1-km depth have been extrapolated from thermal gradients. Future development of low-grade geothermal resources may be warranted in these areas.

  1. Geothermal resource assessment for the state of Texas: status of progress, November 1980. Final report

    SciTech Connect (OSTI)

    Woodruff, C.M. Jr.; Caran, S.C.; Gever, C.; Henry, C.D.; Macpherson, G.L.; McBride, M.W.

    1982-03-01T23:59:59.000Z

    Data pertaining to wells and thermal aquifers and data interpretation methods are presented. Findings from a program of field measurements of water temperatures (mainly in South-Central Texas) and an assessment of hydrologic properties of three Cretaceous aquifers (in North-Central Texas) are included. Landsat lineaments and their pertinance to the localization of low-temperature geothermal resources are emphasized. Lineament data were compared to structural and stratigraphic features along the Balcones/Ouachita trend in Central Texas to test for correlations. (MHR)

  2. Our Evolving Knowledge Of Nevada's Geothermal Resource Potential | Open

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  3. Ouray County, Colorado: Energy Resources | Open Energy Information

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  4. Ouray Municipal Pool Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

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  5. Outagamie County, Wisconsin: Energy Resources | Open Energy Information

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  6. OutageMapURL Phases Energy Services

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  7. Outstanding Issues For New Geothermal Resource Assessments | Open Energy

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  8. Over Core Stress | Open Energy Information

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  9. Overcoming Barriers to the Transfer and Diffusion of Climate Technologies |

    Open Energy Info (EERE)

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  10. Overland Park, Kansas: Energy Resources | Open Energy Information

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    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 Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: EnergyOuachita ElectricOpen EnergyKansas:

  11. Overspeed | Open Energy Information

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  12. Overton County, Tennessee: Energy Resources | Open Energy Information

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  13. Overview Of The Lake City, California Geothermal System | Open Energy

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  14. Oviedo, Florida: Energy Resources | Open Energy Information

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    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 Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: EnergyOuachita ElectricOpenOvertonOviedo,

  15. Ovilla, Texas: Energy Resources | Open Energy Information

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  16. Owasso, Oklahoma: Energy Resources | Open Energy Information

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    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 Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: EnergyOuachitaOwasso, Oklahoma: Energy

  17. Owen County, Indiana: Energy Resources | Open Energy Information

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    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 Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: EnergyOuachitaOwasso, Oklahoma: EnergyIndiana:

  18. Owen County, Kentucky: Energy Resources | Open Energy Information

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  19. Owen, Wisconsin: Energy Resources | Open Energy Information

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  20. Owensville, Ohio: Energy Resources | Open Energy Information

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  1. Owls Head, Maine: Energy Resources | Open Energy Information

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  2. Owsley County, Kentucky: Energy Resources | Open Energy Information

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  3. Owyhee County, Idaho: Energy Resources | Open Energy Information

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  4. Oxbow, North Dakota: Energy Resources | Open Energy Information

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  5. Oxford County, Maine: Energy Resources | Open Energy Information

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  6. Oxford Innovation | Open Energy Information

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  7. Oxford Solar | Open Energy Information

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  8. Oxford, Massachusetts: Energy Resources | Open Energy Information

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  9. Oxford, Michigan: Energy Resources | Open Energy Information

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  10. Oxford, Mississippi: Energy Resources | Open Energy Information

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  11. Oxford, Ohio: Energy Resources | Open Energy Information

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  12. Oxford, United Kingdom: Energy Resources | Open Energy Information

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  13. Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From Yellowstone

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  14. Center for Nanoscale Control of Geologic CO2 (EFRC) - Staff

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

    Manager (Energy Sciences Area, LBNL) An organization chart of the Center for Nanoscale Control of Geologic CO2 Research Teams: Thrust 1: Fractured Shale Ian Bourg, Thrust 1 Lead,...

  15. Abstract--A fish-like propulsion system seems to be an interesting and efficient alternative to propellers in small

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    . The production of thrust is based in the formation of a reverse Karman vortex street in the flow wake. Thrust foil that generates a reverse Karman vortex street in the wake of the flow, [6]. This phenomenon

  16. Hydrogen and oxygen isotope variations in the high Himalaya peraluminous Manaslu leucogranite: evidence for heterogeneous sedimentary source

    SciTech Connect (OSTI)

    France-Lanord, C.; Sheppard, S.M.F.; Le Fort, P.

    1988-02-01T23:59:59.000Z

    The Manaslu granite belongs to the High Himalaya leucogranitic belt which was produced by melting of the crust during postcollisional thrusting. deltaD and delta/sup 18/O values have been determined for whole rock and coexisting minerals from the approx. 8 km thick Manaslu massif and its 50 km long dyke sheet, its country rocks and the Formation 1 (F1) paragneisses which are the source of the granite. From the distribution of deltaD values in the granite and its country rocks, circulation of very low deuterium meteoric hydrothermal waters was extremely localized. Because these waters are depleted in deuterium by up to 50% relative to modern meteoric waters, the Manaslu area was either at an altitude substantially higher than that of today or a mountain chain once existed to the south. The F1 gneisses have delta/sup 18/O/sub quartz/ between 12 and 14.3 per thousand which confirms that the granite was generated from F1, but deltaD values are approx. = 20 per thousand higher than in the granite. Infiltration of low deltaD fluid (approx. =-90 per thousand) into the hot but dry F1 probably triggered partial melting; these fluids could have come from the dehydration of the Midlands sediments which are separated from the overlying F1 by the Main Central Thrust. The correlations among delta/sup 18/O, (/sup 87/Sr/sup 86/Sr)/sub 20 Ma/ and epsilon Nd values in both F1 and the granite indicate that the variations of these isotopic ratios in the Manaslu are inherited from those in F1 at the time of melting. In turn, these ratios in F1 are related to the proportion of quartz and phyllosilicates for the isotopic ratios of Nd and O, and to the quantity of radiogenic Sr generated within the sediment, which is a function of age and Rb content. Some other Himalayan leucogranites require either other crustal source rocks of the delta/sup 18/O and /sup 87/Sr/sup 86/Sr ratios to F1 vary along the Himalaya.

  17. 6 Sex and Power John Berger writes

    E-Print Network [OSTI]

    Robinson, John A.

    . The thrust of Berger's argument is that the artistic nude is no different from the soft porn nude, existing

  18. A Vital Legacy - Biological and Environmental Research in the Atomic Age

    E-Print Network [OSTI]

    Vaughan editor, Douglas

    2010-01-01T23:59:59.000Z

    thrust, though, had medical advances as its goal from theto the latest advances in medical imaging, and toward an era

  19. Garth Gibson, Directions for Shingled-Write and TDMR System Architectures

    E-Print Network [OSTI]

    , 1988 Professor, CS & ECE, CMU, 1991- Systems Thrust Leader, DSSC, CMU, 1990s Founder, Parallel Data Lab

  20. Design, Control, and Experimental Performance of a Teleoperated Robotic Fish

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    significant thrust, accompanied by high efficiency due to the formation of a reverse Karman vortex street [2

  1. MAJOR OIL PLAYS IN UTAH AND VICINITY

    SciTech Connect (OSTI)

    Thomas C. Chidsey; Craig D. Morgan; Kevin McClure; Grant C. Willis

    2003-09-01T23:59:59.000Z

    Utah oil fields have produced over 1.2 billion barrels (191 million m{sup 3}). However, the 13.7 million barrels (2.2 million m{sup 3}) of production in 2002 was the lowest level in over 40 years and continued the steady decline that began in the mid-1980s. The Utah Geological Survey believes this trend can be reversed by providing play portfolios for the major oil-producing provinces (Paradox Basin, Uinta Basin, and thrust belt) in Utah and adjacent areas in Colorado and Wyoming. Oil plays are geographic areas with petroleum potential caused by favorable combinations of source rock, migration paths, reservoir rock characteristics, and other factors. The play portfolios will include: descriptions and maps of the major oil plays by reservoir; production and reservoir data; case-study field evaluations; summaries of the state-of-the-art drilling, completion, and secondary/tertiary techniques for each play; locations of major oil pipelines; descriptions of reservoir outcrop analogs; and identification and discussion of land use constraints. All play maps, reports, databases, and so forth, produced for the project will be published in interactive, menu-driven digital (web-based and compact disc) and hard-copy formats. This report covers research activities for the fourth quarter of the first project year (April 1 through June 30, 2003). This work included describing outcrop analogs to the Jurassic Nugget Sandstone and Pennsylvanian Paradox Formation, the major oil producers in the thrust belt and Paradox Basin, respectively. Production-scale outcrop analogs provide an excellent view, often in three dimensions, of reservoir-facies characteristics and boundaries contributing to the overall heterogeneity of reservoir rocks. They can be used as a ''template'' for evaluation of data from conventional core, geophysical and petrophysical logs, and seismic surveys. The Nugget Sandstone was deposited in an extensive dune field that extended from Wyoming to Arizona. Outcrop analogs are found in the stratigraphically equivalent Navajo Sandstone of southern Utah which displays large-scale dunal cross-strata with excellent reservoir properties and interdunal features such as oases, wadi, and playa lithofacies with poor reservoir properties. Hydrocarbons in the Paradox Formation are stratigraphically trapped in carbonate buildups (or phylloid-algal mounds). Similar carbonate buildups are exposed in the Paradox along the San Juan River of southeastern Utah. Reservoir-quality porosity may develop in the types of facies associated with buildups such as troughs, detrital wedges, and fans, identified from these outcrops. When combined with subsurface geological and production data, these outcrop analogs can improve (1) development drilling and production strategies such as horizontal drilling, (2) reservoir-simulation models, (3) reserve calculations, and (4) design and implementation of secondary/tertiary oil recovery programs and other best practices used in the oil fields of Utah and vicinity. During this quarter, technology transfer activities consisted of exhibiting the project plans, objectives, and products at a booth at the 2003 annual convention of the American Association of Petroleum Geologists. The project home page was updated on the Utah Geological Survey Internet web site.

  2. Eustatic and tectonic control of sedimentation in the Pennsylvanian strata of the Central Appalachian Basin

    SciTech Connect (OSTI)

    Chesnut, D.R. Jr. (Univ. of Kentucky, Lexington, KY (United States). Kentucky Geological Survey)

    1992-01-01T23:59:59.000Z

    Analysis of the Breathitt Group of the Central Appalachian Basin reveals three orders of depositional cycles or trends. The Breathitt coarsening-upward trend (20 million years (my)) represents increasing intensity of the Alleghenian Orogeny. The major transgression (MT) cycle (2.5 my) was controlled by an unknown eustatic or tectonic mechanism. The major coal beds and intervening strata make up the coal-clastic cycle (CC cycle) (=Appalachian cyclothem) which has a 0.4 my periodicity. This periodicity supports eustatic control of sedimentation modulated by an orbital periodicity. Extensive coastal peats deposited at lowstand (CC cycle) were preserved as coals, whereas highstand peats were eroded during the subsequent drop in sea level. Autocyclic processes such as delta switching and avulsion occurred within CC cycles. An Early Pennsylvanian unconformity represents uplift and erosion of mid-Carboniferous foreland basin deposits. Alluvial deposits (Breathitt Group) derived from the highlands were transported to the northwest toward the forebulge. During lowstand, the only outlet available to further sediment transport (Lee sandstones) was toward the southwest (Ouachita Trough), along the Black Warrior-Appalachian foreland basins. The Middle Pennsylvanian marks a period of intermittent overfilling of the foreland basin and cresting of the forebulge. Marine transgressions entered through the foreland basins and across saddles in the forebulge. After the Ouachita Trough was destroyed during the late Middle Pennsylvanian, marine transgressions migrated only across saddles in the forebulge. In the Late Pennsylvanian, marine waters entered the basin only across the diminished forebulge north of the Jessamine Dome.

  3. Provenance of Norphlet sandstone, northern Gulf Coast

    SciTech Connect (OSTI)

    Ryan, W.P.; Ward, W.C.; Kuglar, R.L.

    1987-09-01T23:59:59.000Z

    The Upper Jurassic Norphlet sandstone of the northern Gulf Coast is predominantly subarkose, with some arkose in the eastern area and sublitharenite and quartzarenite in the western area. Despite great depths of burial and despite feldspar and rock-fragment constituents, diagenesis has not appreciably altered the composition of Norphlet sandstone. Therefore, reconstruction of original composition of Norphlet sandstone presented little difficulty. Variation in detrital modes of the Norphlet suggests compositionally distinct source terranes. Samples from Florida, Alabama, and Mississippi reflect the influence of metamorphic and plutonic rocks of the Appalachian Piedmont Province and of Triassic-Jurassic volcanic rocks. Sandstones in east Texas, northern Louisiana, and southern Arkansas were derived from sedimentary and metasedimentary rocks of the Ouachita system. The Arbuckle Mountains and Llano uplift may have supplied trace amounts of quartzo-feldspathic and volcanic-rock fragments to the extreme western part of the study area. Norphlet sandstones represent a mixture of collision-orogen-derived sediment from the Appalachian and/or Ouachita system and continental-block-derived sediment from paleohighs and uplifts within the Gulf basin. However, Norphlet sandstones plot in the craton-interior and transitional-continental fields on Q-F-L and QM-F-Lt tectonic-provenance diagrams, because of mineralogically mature source rocks, elimination of unstable grains by abrasion and sorting during deposition, and/or sediment mixing from different source terranes.

  4. Linear tractor dry coal extrusion pump

    DOE Patents [OSTI]

    Sprouse, Kenneth M.; Matthews, David R.

    2011-10-18T23:59:59.000Z

    A pump for transporting particulate material includes an inlet, an outlet, a passageway, a first and second load beam, a first and second scraper seal, and a first and second drive assembly. The inlet introduces the particulate material into the passageway and the outlet expels the particulate material from the passageway. The passageway is defined by a first belt assembly and a second belt assembly that are opposed to each other. The first and second load beams are positioned within the first belt assembly and the second belt assembly, respectively. The first scraper seal and a second scraper seal are positioned proximate the passageway and the outlet. The first drive assembly is positioned within an interior section of the first belt assembly and drives the first belt assembly and the second drive assembly is positioned within an interior section of the second belt assembly and drives the second belt assembly.

  5. Descriptions of Motor Vehicle Collisions by Participants in Emergency DepartmentBased Studies: Are They Accurate?

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    limit, seat belt use, airbag deployment, vehicle damage,for seat belt use, 94% for airbag deployment, 96% for speedroad condition, 0.87 for airbag deployment, 0.90 for vehicle

  6. Linear tractor dry coal extrusion pump

    DOE Patents [OSTI]

    Sprouse, Kenneth M. (Northridge, CA); Matthews, David R. (Simi Valley, CA)

    2008-06-17T23:59:59.000Z

    A pump for transporting particulate material includes an inlet, an outlet, a passageway, a first and second load beam, a first and second scraper seal, and a first and second drive assembly. The inlet introduces the particulate material into the passageway and the outlet expels the particulate material from the passageway. The passageway is defined by a first belt assembly and a second belt assembly that are opposed to each other. The first and second load beams are positioned within the first belt assembly and the second belt assembly, respectively. The first scraper seal and a second scraper seal are positioned proximate the passageway and the outlet. The first drive assembly is positioned within an interior section of the first belt assembly and drives the first belt assembly and the second drive assembly is positioned within an interior section of the second belt assembly and drives the second belt assembly.

  7. Mon. Not. R. Astron. Soc. 000, 120 (2009) Printed 19 October 2009 (MN LATEX style file v2.2) The JCMT Legacy Survey of the Gould Belt: a first look at Orion B

    E-Print Network [OSTI]

    White, Glenn J.

    Institute of Astrophysics, 5071 West Saanich Rd, Victoria, BC, V9E 2E7 12Department of Physics & Astronomy, University of Victoria, 3800 Finnerty Rd., Victoria, BC, Canada 13Scottish Universities Physics Alliance´tor 50, 18008 Granada, Spain Accepted 2009 August 27. Received 2009 August 3; in original form 2009 July

  8. CLIENT The Nature Conservancy. Mike Laspia. Cynthia Belt TEAM G. Arnold, S. Coulter, L. Cheng, F. Dieye, R. Futrell, A. Guerrero, S. Jiang, J. Louie, E. Quigley. R. Schwarz, M. Shurtleff, M. Weiss ADVISOR Susanne DesRoches

    E-Print Network [OSTI]

    Qian, Ning

    thermal hot water generation 38. Tidal power energy 39. Woody biomass +10 SUB-OPPORTUNITIES 5 7 11 8 9 6 Energy Efficiency Renewable Energy REDUCE IMPACT ON BUILDING OPERATIONS AT MASHOMACK PRESERVE 6 #12. Small wind turbines 35. Wind and solar-powered outdoor lighting 36. Solar electric energy 37. Solar

  9. Attal, M., and Lav, 2006, Changes of bedload characteristics along the Marsyandi River (central Nepal): Implications for understanding hillslope sediment supply, sediment load evolution along fluvial networks, and denudation in active orogenic belts, in W

    E-Print Network [OSTI]

    (central Nepal): Implications for understanding hillslope sediment supply, sediment load evolution along of bedload characteristics along the Marsyandi River (central Nepal): Implications for understanding (Himalayas of central Nepal), and also in sediment source material from hillslopes (landslides, moraines

  10. THE INFLUENCE OF THE DISTANCE FUNCTION IN SOME SINGULAR ELLIPTIC PROBLEMS

    E-Print Network [OSTI]

    Radulescu, Vicentiu

    , in transport of coal slurries down conveyor belts and in several other geophysical and industrial contents (see

  11. Posted 6.1.12 Job details -Baxter

    E-Print Network [OSTI]

    Heller, Barbara

    processes & controls, ERP systems such as JD Edwards and Lean Six Sigma. 4) PMP, Six Sigma belt or APICS

  12. Geophys. J. Int. (2009) 178, 729741 doi: 10.1111/j.1365-246X.2009.04158.x GJISeismology

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    of the Darling Mobile Belt or Pinjarra Orogen into the interior of East Antarctica. Key words: Mantle processes

  13. Need for Injury Prevention Education In Medical School Curriculum

    E-Print Network [OSTI]

    Yoshii, Isaac; Sayegh, Rockan; Lotfipour, Shahram; Vaca, Federico E.

    2010-01-01T23:59:59.000Z

    moist; no seatbelt but airbag deployed; left pupil blown,road-side seat belts, airbag, inte- hazards rior surface

  14. 70 IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, VOL. 10, NO. 1, MARCH 2009 Critical Motion Detection of Nearby Moving

    E-Print Network [OSTI]

    Rucci, Michele

    ) active. Passive approaches (e.g., seat belts and airbags) are intended to reduce the degree of injury

  15. IEEE Communications Magazine April 2005100 0163-6804/05/$20.00 2005 IEEE TOPICS IN EMERGING TECHNOLOGIES

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    technologies to survive crashes (e.g., seat belts, airbags) are cru- cial, there is need for active safety

  16. Time Dependence of ACIS Contamination

    E-Print Network [OSTI]

    Grant, Catherine E.

    Viewable by ACIS when HRC-S is at the HRMA focus Observed on ingress and egress from radiation belts

  17. ACIS Memo #162 Massachusetts Institute of Technology

    E-Print Network [OSTI]

    apogee to well into the radiation belts. The ACIS door was open and the aft HRMA cover was closed, so

  18. Time Dependence of ACIS Contamination

    E-Print Network [OSTI]

    Grant, Catherine E.

    . Viewable by ACIS when HRCS is at the HRMA focus . Observed on ingress and egress from radiation belts

  19. TERSat: Trapped Energetic Radiation Satellite

    E-Print Network [OSTI]

    Clements, Emily B.

    2012-01-01T23:59:59.000Z

    Radiation damage caused by interactions with high-energy particles in the Van Allen Radiation Belts is a leading

  20. Catalog for Future Reference

    E-Print Network [OSTI]

    Sheridan, Scott

    for Human Resource Professionals 12 Breakfast Briefing with Your Training Partner 16 Lean Six Sigma Black Belt Training and Certification 23 Lean Six Sigma Master Black Belt 27 Motivating Employees 30 Lean Six Sigma Green Belt Training and Certification October 3 Crash the Barriers: Build Your Team 8

  1. Graduate and Professional Programs (GAPP)

    E-Print Network [OSTI]

    Zhou, Chongwu

    · Open Enrollment Short Courses ­ Short courses supported by DEN: Aviation Security, Lean Six Sigma White Belt, Six Sigma Green Belt (7 Sessions), Six Sigma Black Belt (3 Sessions), Patient Safety Management Rocket Engines for Boeing, Lean Process Improvement for the California Hospital Association, Lean and Six

  2. EducationandBusiness extension.uci.edu/sixsigma

    E-Print Network [OSTI]

    Loudon, Catherine

    EducationandBusiness extension.uci.edu/sixsigma Six Sigma Lean Green and Black Belt Programs #12 of excellence. #12;Six Sigma Lean Green and Black Belt Programs Improve Performance. Eliminate Redundancies with UC Irvine Extension's Six Sigma Lean Green and Black Belt Training Programs. Our programs have

  3. Intern experience at Packages Limited: an internship report

    E-Print Network [OSTI]

    Shafkey, Refaat

    2013-03-13T23:59:59.000Z

    .............................................................................................. 13 Design of a Steam Jacketed Vessel ....................................................................... 30 Design of a Belt Conveyor for Handling Wheatstraw ..................................... 39 Pneumatic Conveying of Wheatstraw..........................................................................................................32 12 A Layout Showing Position of Belt Conveyors and Digestors............................. 41 13 Engineering Drawing of the Main Belt Conveyor.....................................................42 14 Pneumatic Paper Trim Handling System...

  4. Pulsed hydrojet

    DOE Patents [OSTI]

    Bohachevsky, I.O.; Torrey, M.D.

    1986-06-10T23:59:59.000Z

    An underwater pulsed hydrojet propulsion system is provided for accelerating and propelling a projectile or other vessel. A reactant, such as lithium, is fluidized and injected into a water volume. The resulting reaction produces an energy density in a time effective to form a steam pocket. Thrust flaps or baffles direct the pressure from the steam pocket toward an exit nozzle for accelerating a water volume to create thrust. A control system regulates the dispersion of reactant to control thrust characteristics.

  5. Direct Fusion Drive for a Human Mars Orbital Mission

    SciTech Connect (OSTI)

    Paluszek, Michael [Princeton Satellite Systems; Pajer, Gary [Princeton Satellite Systems; Razin, Yosef [Princeton Satellite Systems; Slonaker, James [Princeton Satellite Systems; Cohen, Samuel [PPPL; Feder, Russ [PPPL; Griffin, Kevin [Princeton University; Walsh, Matthew [Princeton University

    2014-08-01T23:59:59.000Z

    The Direct Fusion Drive (DFD) is a nuclear fusion engine that produces both thrust and electric power. It employs a field reversed configuration with an odd-parity rotating magnetic field heating system to heat the plasma to fusion temperatures. The engine uses deuterium and helium-3 as fuel and additional deuterium that is heated in the scrape-off layer for thrust augmentation. In this way variable exhaust velocity and thrust is obtained.

  6. Hot Particle and Turbulent Transport Effects on Resistive Instabilities

    SciTech Connect (OSTI)

    Brennan, Dylan P.

    2012-10-16T23:59:59.000Z

    This research project included two main thrusts; energetic particle effects on resistive MHD modes in tokamaks, and turbulence interactions with tearing modes in simplified geometry.

  7. air mass flow: Topics by E-print Network

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

    supported by externally pressured air bearing. The turbine with coupled brake centrifugal compressor, aerostatic radial and thrust bearing and test rig are developed for conducting...

  8. Global Climate Change, Developing Countries and Transport Sector Options in South Africa

    E-Print Network [OSTI]

    2000-01-01T23:59:59.000Z

    South Africa (MSA) Action Agenda (May 1999) 36 Main policy thrusts .36 Key strategic issues..37 Key initiatives38 White Paper on Energy Policy (

  9. Processing Science

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

    Processing Science Related to the Electron Beam Melting Additive Manufacturing Process October 14 th , 2014 Ryan Dehoff Metal Additive Manufacturing Thrust Lead Manufacturing...

  10. Innovative Manufacturing Initiative Recognition Day, Advanced...

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

    Thrust Advanced Manufacturing Office Identify timely, high-impact, foundational clean energy technologies with the potential to transform energy use and accelerate their...

  11. High-Temperature-High-Volume Lifting For Enhanced Geothermal...

    Open Energy Info (EERE)

    include high-temperature drive system materials, journal and thrust bearings, and corrosion and erosion-resistant lifting pump components. Finally, in Phase 3, the overall...

  12. NERSC/DOE BES Requirements Workshop Worksheet - Normand Modine

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

    Nanoscale Phenomena thrust is the component of CINT dedicated to developing and applying theory to enable nanoscale integration. Two examples of specific goals that we hope to...

  13. Condensed Matter and Magnetic Science, MPA-CMMS: Materials Physics...

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

    Physics Thrust The thermal physics R&D activities in MPA-CMMS have common roots in thermodynamics, fluid dynamics, and statistical mechanics. Projects range from fundamental...

  14. Sandia National Laboratories: Enabling Energy Efficiency

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

    ClimateEnabling Energy Efficiency Enabling Energy Efficiency videobanner Enabling Energy Efficiency Sp eakers: George Wang (EFRC Thrust Leader) and Tania Henry(Researcher) Date:...

  15. engineeringnews I n s I d e C I T

    E-Print Network [OSTI]

    McGaughey, Alan

    the panel, which included: Jurij Paraszczak, director of emerging Business Research and smarter Planet important issues that align with the College's research thrusts like innovation, cybersecurity and energy

  16. aircraft propulsion reactors: Topics by E-print Network

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

    to produce adequate thrust, reduce ... Dicara, Daniel L 2006-01-01 13 Simplest AB-Thermonuclear Space Propulsion and Electric Generator CERN Preprints Summary: The author...

  17. Model-based Controllers for Active Control and Real-time Tests with

    E-Print Network [OSTI]

    of the Actuators: Type: ETB80; Available stroke: 500mm; Max. permissible speed: 540mm/s; Max. thrust force: 8.3k

  18. Paleotopographic control of basal Chesterian sedimentation in the black warrior basin of Alabama

    SciTech Connect (OSTI)

    Pashin, J.C.; Rindsberg, A.K. (Geological Survey of Alabama, Tuscaloosa, AL (United States))

    1993-09-01T23:59:59.000Z

    At the start of the Chesterian (Upper Mississippian), the Ouachita orogeny began along the southwestern edge of the Alabama promontory. The orogeny ended the upwelling circulation system of the Fort Payne-Tuscumbia carbonate ramp that persisted from the Osagian to the Meramecian. These events established the Black Warrior foreland basin, where carbonate and siliciclastic sedimentation were controlled by flexural tectonism and sea level variation. These factors governed deposition of the petroleum source rocks and reservoir rocks that account for most of the conventional hydrocarbon resources in the basin. The Lewis interval is a thin (<100 ft), widespread veneer of carbonate and siliciclastic rocks that forms the base of the Chesterian Series in Alabama and contains significant gas, oil, and asphalt resources. Although thin, the Lewis interval is heterogeneous and represents a spectrum of marginal- and open-marine environments, suggesting that depositional topography affected facies distribution. To test the effect of paleotopography on sedimentation, data from wells, outcrops, and cores were analyzed to model the relationship between the Fort Payne Tuscumbia ramp and the Lewis interval. Sandstone bodies in the Lewis interval typically are elongate parallel to strike of the Fort Payne-Tuscumbia ramp. Along the lower ramp, siliciclastic and carbonate sedimentation took place exclusively in open-marine environments and sand was deposited in sand waves and patches by storms. Topographic irregularity was especially pronounced on the upper ramp and gave rise to complex facies patterns. Exposure, reworking, and beach formation took place on topographic highs, whereas storm-driven marine sedimentation prevailed in topographic lows. Although inception of the Ouachita orogeny in the Alabama promontory had a marked effect on marine circulation, facies distribution in the basal part of the Chesterian Series was dominated by the ramp topography developed prior to orogenesis.

  19. Microbial impacts on geothermometry temperature predictions

    SciTech Connect (OSTI)

    Yoshiko Fujita; David W. Reed; Kaitlyn R. Nowak; Vicki S. Thompson; Travis L. McLing; Robert W. Smith

    2013-02-01T23:59:59.000Z

    Conventional geothermometry approaches assume that the composition of a collected water sample originating in a deep geothermal reservoir still reflects chemical equilibration of the water with the deep reservoir rocks. However, for geothermal prospecting samples whose temperatures have dropped to <120C, temperature predictions may be skewed by the activity of microorganisms; microbial metabolism can drastically and rapidly change the waters chemistry. We hypothesize that knowledge of microbial impacts on exploration sample geochemistry can be used to constrain input into geothermometry models and thereby improve the reliability of reservoir temperature predictions. To evaluate this hypothesis we have chosen to focus on sulfur cycling, because of the significant changes in redox state and pH associated with sulfur chemistry. Redox and pH are critical factors in defining the mineral-fluid equilibria that form the basis of solute geothermometry approaches. Initially we are developing assays to detect the process of sulfate reduction, using knowledge of genes specific to sulfate reducing microorganisms. The assays rely on a common molecular biological technique known as quantitative polymerase chain reaction (qPCR), which allows estimation of the number of target organisms in a particular sample by enumerating genes specific to the organisms rather than actually retrieving and characterizing the organisms themselves. For quantitation of sulfate reducing genes using qPCR, we constructed a plasmid (a piece of DNA) containing portions of two genes (known as dsrA and dsrB) that are directly involved with sulfate reduction and unique to sulfate reducing microorganisms. Using the plasmid as well as DNA from other microorganisms known to be sulfate reducers or non-sulfate reducers, we developed qPCR protocols and showed the assays specificity to sulfate reducers and that a qPCR standard curve using the plasmid was linear over >5 orders of magnitude. As a first test with actual field samples, the assay was applied to DNA extracted from water collected at springs located in and around the town of Soda Springs, Idaho. Soda Springs is located in the fold and thrust belt on the eastern boundary of the track of the Yellowstone Hotspot, where a deep carbon dioxide source believed to originate from Mississippian limestone contacts acidic hydrothermal fluids at depth. Both sulfate and sulfide have been measured in samples collected previously at Soda Springs. Preliminary results indicate that sulfate reducing genes were present in each of the samples tested. Our work supports evaluation of the potential for microbial processes to have altered water chemistry in geothermal exploration samples.

  20. MAJOR OIL PLAYS IN UTAH AND VICINITY

    SciTech Connect (OSTI)

    Thomas C. Chidsey Jr; Craig D. Morgan; Roger L. Bon

    2003-07-01T23:59:59.000Z

    Utah oil fields have produced over 1.2 billion barrels (191 million m{sup 3}). However, the 13.7 million barrels (2.2 million m{sup 3}) of production in 2002 was the lowest level in over 40 years and continued the steady decline that began in the mid-1980s. The Utah Geological Survey believes this trend can be reversed by providing play portfolios for the major oil producing provinces (Paradox Basin, Uinta Basin, and thrust belt) in Utah and adjacent areas in Colorado and Wyoming. Oil plays are geographic areas with petroleum potential caused by favorable combinations of source rock, migration paths, reservoir rock characteristics, and other factors. The play portfolios will include: descriptions and maps of the major oil plays by reservoir; production and reservoir data; case-study field evaluations; summaries of the state-of-the-art drilling, completion, and secondary/tertiary techniques for each play; locations of major oil pipelines; descriptions of reservoir outcrop analogs; and identification and discussion of land use constraints. All play maps, reports, databases, and so forth, produced for the project will be published in interactive, menu-driven digital (web-based and compact disc) and hard-copy formats. This report covers research activities for the third quarter of the first project year (January 1 through March 31, 2003). This work included gathering field data and analyzing best practices in the eastern Uinta Basin, Utah, and the Colorado portion of the Paradox Basin. Best practices used in oil fields of the eastern Uinta Basin consist of conversion of all geophysical well logs into digital form, running small fracture treatments, fingerprinting oil samples from each producing zone, running spinner surveys biannually, mapping each producing zone, and drilling on 80-acre (32 ha) spacing. These practices ensure that induced fractures do not extend vertically out of the intended zone, determine the percentage each zone contributes to the overall production of the well, identify areas that may be by-passed by a waterflood, and prevent rapid water breakthrough. In the eastern Paradox Basin, Colorado, optimal drilling, development, and production practices consist of increasing the mud weight during drilling operations before penetrating the overpressured Desert Creek zone; centralizing treatment facilities; and mixing produced water from pumping oil wells with non-reservoir water and injecting the mixture into the reservoir downdip to reduce salt precipitation, dispose of produced water, and maintain reservoir pressure to create a low-cost waterflood. During this quarter, technology transfer activities consisted of technical presentations to members of the Technical Advisory Board in Colorado and the Colorado Geological Survey. The project home page was updated on the Utah Geological Survey Internet web site.