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Sample records for black hills power

  1. Black Hills Energy- Solar Power Program

    Broader source: Energy.gov [DOE]

    All incentive payments are subject to the availability of funds and a pre-installation site inspection. Black Hills Energy has established participation caps for each tier. The status of funding ...

  2. Black Hills Power Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLCMichigan:Earth, Wisconsin:Black Hills

  3. Black Hills Power, Inc. Smart Grid Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLCMichigan:Earth, Wisconsin:Black

  4. Black Hills Power Inc (Montana) | Open Energy Information

    Open Energy Info (EERE)

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  5. DEVELOPMENT OF AN ELK SIGHTABILITY MODEL FOR THE BLACK HILLS OF SOUTH DAKOTA

    E-Print Network [OSTI]

    DEVELOPMENT OF AN ELK SIGHTABILITY MODEL FOR THE BLACK HILLS OF SOUTH DAKOTA BY EVAN C. PHILLIPS SIGHTABILITY MODEL FOR THE BLACK HILLS OF SOUTH DAKOTA Evan C. Phillips August 26, 2011 Elk (Cervus elaphus specific to the elk population that resides within the Black Hills of South Dakota. Sightability trials

  6. Black Hills Electric Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

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  7. HEPATIC MINERALS OF WHITE-TAILED AND MULE DEER IN THE SOUTHERN BLACK HILLS, SOUTH DAKOTA

    E-Print Network [OSTI]

    HEPATIC MINERALS OF WHITE-TAILED AND MULE DEER IN THE SOUTHERN BLACK HILLS, SOUTH DAKOTA Teresa J status, and species. Key words: Black Hills, elements, fire, liver, mule deer, Odocoileus hemionus and laboratory animals (Robbins, 1983). Liver concentrations of some trace elements have been measured in elk

  8. SURVIVAL AND HOME RANGE CHARACTERISTICS OF MERRIAM'S TURKEY GOBBLERS IN THE SOUTHERN BLACK HILLS, SOUTH DAKOTA

    E-Print Network [OSTI]

    SURVIVAL AND HOME RANGE CHARACTERISTICS OF MERRIAM'S TURKEY GOBBLERS IN THE SOUTHERN BLACK HILLS;ii SURVIVAL AND HOME RANGE CHARACTERISTICS OF MERRIAM'S TURKEY GOBBLERS IN THE SOUTHERN BLACK l. I thank all fellow graduate students who helped trap turkeys and for making the office an enjoyable

  9. POPULATION ESTIMATION PROCEDURES FOR ELK AND DEER IN THE BLACK HILLS, SOUTH DAKOTA: DEVELOPMENT OF A SIGHTABILITY

    E-Print Network [OSTI]

    POPULATION ESTIMATION PROCEDURES FOR ELK AND DEER IN THE BLACK HILLS, SOUTH DAKOTA: DEVELOPMENT PROCEDURES FOR ELK AND DEER IN THE BLACK HILLS, SOUTH DAKOTA: DEVELOPMENT OF A SIGHTABILITY MODEL my masters in elk research. It has been a wonderful learning and growing experience for which I am

  10. Lithium isotopic systematics of granites and pegmatites from the Black Hills, South Dakota

    E-Print Network [OSTI]

    Rudnick, Roberta L.

    Lithium isotopic systematics of granites and pegmatites from the Black Hills, South Dakota Fang compositions may reflect Li isotopic fractionation resulting from extensive crystal-melt fractionation. Lithium fractionation in the near­surface environment of > 60 (Tomascak, 2004). Lithium isotopic fractionation has been

  11. Clean Water Alliance Colorado Citizens Against ToxicWaste, Inc. Defenders of the Black Hills EARTHWORKS High Country

    E-Print Network [OSTI]

    Clean Water Alliance · Colorado Citizens Against ToxicWaste, Inc. Defenders of the Black Hills Alliance for a Safe Environment · Nuclear Information and Resource Service · Sierra Club Nuclear Free

  12. MerriaM's Turkey PoulT survival in The Black hills, souTh DakoTa

    E-Print Network [OSTI]

    MerriaM's Turkey PoulT survival in The Black hills, souTh DakoTa By Chad P. Lehman, Lester D. Flake, 2008 531-W #12;78 © Intermountain Journal of Sciences, Vol. 14, No. 4, 2008 MerriaM's Turkey Poul investigated poult survival from hatching to 4 wks of age for Merriam's wild turkey (Meleagris gallopavo

  13. Black Hills Power Inc (Wyoming) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC JumpBiossence Jump to: navigation, searchBirahi GangaCoral

  14. Black Hills Power - Commercial Energy Efficiency Programs | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De pEnergy Industrial Local Government Nonprofit State

  15. Black Hills Power - Residential Customer Rebate Program | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De pEnergy Industrial Local Government Nonprofit

  16. Black Hills Power - Residential Customer Rebate Program | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De pEnergy Industrial Local Government NonprofitEnergy

  17. Black Hills Power - Residential Customer Rebate Program | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De pEnergy Industrial Local Government

  18. Black Hills Power - Commercial Energy Efficiency Programs | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment|Marketing, LLC |Energy AdvisorEnergy 4Prepared Remarks

  19. Singaraya Hills Green Power Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity forSilicium de Provence SASSinem Geothermal Power PlantSingaraya

  20. Golden Hills Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy ElectricalsFTL SolarGate SolarGijeon Wintec coInc GSESolar Power

  1. Global Control of Complex Power Systems David J. Hill 1 , Yi Guo 2 , Mats Larsson 3 , and Youyi Wang 4

    E-Print Network [OSTI]

    Guo, Yi

    Global Control of Complex Power Systems David J. Hill 1 , Yi Guo 2 , Mats Larsson 3 , and Youyi to total control of power systems. It is upwards compatible from any conventional or prior advanced control voltage control of power systems. 1 Introduction This chapter describes progress towards a general

  2. UNC Chapel Hill

    SciTech Connect (OSTI)

    2009-10-01

    This is a combined heat and power (CHP) project profile on a 32 MW cogeneration plant at UNC Chapel Hill in North Carolina.

  3. Reinterpretation of Rb/Sr isotopic data for the Little Elk Granite: Implications for the timing of deformational events, Black Hills, South Dakota

    SciTech Connect (OSTI)

    Dahl, P.S.; Gardner, E.T.; Holm, D.K. (Kent State Univ., OH (United States). Dept. of Geology)

    1993-04-01

    Early Proterozoic rift sediments in the Black Hills were multiply deformed (into refolded nappe structures) during the Trans-Hudson Orogeny, which culminated in Harney Peak Granite (HPG) emplacement at 1,715--1,697 Ma. A reset whole-rock Rb/Sr age of 1,840 [+-] 70 Ma obtained from the Archean (2,549 [+-] 11 Ma) Little Elk Granite (LEG, Zartman and Stern, 1967) is widely interpreted as being coeval with D2, based upon parallelism of gneissic foliation in the granite and F2 foliation predominant elsewhere in the Black Hills. However, the authors have recalculated the whole-rock Rb/Sr age by applying the IUGS-recommended [sup 87]Rb decay constant (Steiger and Jager, 1977) to the original isotopic data, obtaining a revised age of 1,905 [+-] 59 Ma. The authors interpret this age as representing a whole-rock isotopic resetting event associated with Early Proterozoic (2,170--1,880 Ma) rifting in the Black Hills. The authors envision the LEG to have experienced a convective hydrothermal fluid-flow regime associated with the rifting. This scenario would allow for the sustained heating and isotopic exchange between granite and abundant water-rich fluid (seawater ) that would be required to effect complete resetting of an Rb/Sr whole-rock isochron. They favor an age for the refolding event and the development of F2 structures that is more closely linked in time with HPG emplacement. Such an age is more compatible with published field/petrologic observations and Proterozoic tectonothermal models for the Black Hills.

  4. Economic Development Benefits of the Mars Hill Wind Farm, Wind Powering America Rural Economic Development, Case Study (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-06-01

    This case study summarizes the economic development benefits of the Mars Hill Wind Farm to the community of Mars Hill, Maine. The Mars Hill Wind Farm is New England's first utility-scale wind farm.

  5. Power Law Corrections to BTZ Black Hole Entropy

    E-Print Network [OSTI]

    Dharm Veer Singh

    2014-11-14

    We study the quantum scalar field in the background of BTZ black hole and evaluate the entanglement entropy of the non-vacuum states. The entropy is proportional to the area of event horizon for the ground state, but the area law is violated in the case of non-vacuum states (first excited state and mixed states) and the corrections scale as power law.

  6. Powering AGNs with super-critical black holes

    E-Print Network [OSTI]

    A. Avgoustidis; R. Jimenez; L. Alvarez-Gaume; M. A. Vazquez-Mozo

    2009-05-13

    We propose a novel mechanism for powering the central engines of Active Galactic Nuclei through super-critical (type II) black hole collapse. In this picture, ~$10^3 M_\\odot$ of material collapsing at relativistic speeds can trigger a gravitational shock, which can eject a large percentage of the collapsing matter at relativistic speeds, leaving behind a "light" black hole. In the presence of a poloidal magnetic field, the plasma collimates along two jets, and the associated electron synchrotron radiation can easily account for the observed radio luminosities, sizes and durations of AGN jets. For Lorentz factors of order 100 and magnetic fields of a few hundred $\\mu G$, synchrotron electrons can shine for $10^6$ yrs, producing jets of sizes of order 100 kpc. This mechanism may also be relevant for Gamma Ray Bursts and, in the absence of magnetic field, supernova explosions.

  7. BlackLight Power Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLCMichigan:Earth,DrillingBlackLight Power

  8. Squeezars: Tidally powered stars orbiting a massive black hole

    E-Print Network [OSTI]

    Alexander, T; Alexander, Tal; Morris, Mark

    2003-01-01

    We propose that there exists a class of transient sources, "squeezars", which are stars caught in highly eccentric orbits around a massive (m<10^8 Mo) black hole (MBH), whose atypically high luminosity (up to a significant fraction of their Eddington luminosity) is powered by tidal interactions with the MBH. Their existence follows from the presence of a mass sink, the MBH, in the galactic center, which drives a flow of stars into nearly radial orbits to replace those it has destroyed. We consider two limits for the stellar response to tidal heating: surface heating with radiative cooling ("hot squeezars") and bulk heating with adiabatic expansion ("cold squeezars"), and calculate the evolution of the squeezar orbit, size, luminosity and effective temperature. The squeezar formation rate is only ~0.05 that of tidal disruption flares, but squeezar lifetimes are many orders of magnitude longer, and so future observations of squeezars in nearby galaxies can probe the tidal process that feeds MBHs and the effe...

  9. Powerful, Rotating Disk Winds from Stellar-mass Black Holes

    E-Print Network [OSTI]

    Miller, J M; Kaastra, J; Kallman, T; King, A L; Proga, D; Raymond, J; Reynolds, C S

    2015-01-01

    We present an analysis of ionized X-ray disk winds observed in the Fe K band of four stellar-mass black holes observed with Chandra, including 4U 1630-47, GRO J1655-40, H 1743-322, and GRS 1915+105. High-resolution photoionization grids were generated in order to model the data. Third-order gratings spectra were used to resolve complex absorption profiles into atomic effects and multiple velocity components. The Fe XXV line is found to be shaped by contributions from the intercombination line (in absorption), and the Fe XXVI line is detected as a spin-orbit doublet. The data require 2-3 absorption zones, depending on the source. The fastest components have velocities approaching or exceeding 0.01c, increasing mass outflow rates and wind kinetic power by orders of magnitude over prior single-zone models. The first-order spectra require re-emission from the wind, broadened by a degree that is loosely consistent with Keplerian orbital velocities at the photoionization radius. This suggests that disk winds are ro...

  10. Black Hole Spin via Continuum Fitting and the Role of Spin in Powering Transient Jets

    E-Print Network [OSTI]

    Jeffrey E. McClintock; Ramesh Narayan; James F. Steiner

    2013-06-28

    The spins of ten stellar black holes have been measured using the continuum-fitting method. These black holes are located in two distinct classes of X-ray binary systems, one that is persistently X-ray bright and another that is transient. Both the persistent and transient black holes remain for long periods in a state where their spectra are dominated by a thermal accretion disk component. The spin of a black hole of known mass and distance can be measured by fitting this thermal continuum spectrum to the thin-disk model of Novikov and Thorne; the key fit parameter is the radius of the inner edge of the black hole's accretion disk. Strong observational and theoretical evidence links the inner-disk radius to the radius of the innermost stable circular orbit, which is trivially related to the dimensionless spin parameter a_* of the black hole (|a_*| 0.95. The robustness of the method is demonstrated by the dozens or hundreds of independent and consistent measurements of spin that have been obtained for several black holes, and through careful consideration of many sources of systematic error. Among the results discussed is a dichotomy between the transient and persistent black holes; the latter have higher spins and larger masses. Also discussed is recently discovered evidence in the transient sources for a correlation between the power of ballistic jets and black hole spin.

  11. Outgoing electromagnetic power induced from pair plasma falling into a rotating black hole

    E-Print Network [OSTI]

    Kojima, Yasufumi

    2015-01-01

    We examine energy conversion from accreting pair plasma to outgoing Poynting flux by black hole rotation. Our approach is based on a two-fluid model consisting of collisionless pair plasma. The electric potential is not constant along magnetic field lines, unlike an ideal magnetohydrodynamics approximation. We show how and where longitudinal electric fields and toroidal magnetic fields are generated by the rotation, whereas they vanish everywhere for radial flow in a split monopole magnetic field in a Schwarzschild black hole. Outgoing electromagnetic power in a steady state is calculated by applying the WKB method to the perturbation equations for a small spin parameter. In our model, the luminosity has a peak in the vicinity of the black hole, but is damped toward the event horizon and infinity. The power at the peak is of the same order as that in the Blandford--Znajek process, although the physical mechanism is different.

  12. Thermodynamics of higher dimensional topological dilaton black holes with power-law Maxwell field

    E-Print Network [OSTI]

    M. Kord Zangeneh; A. Sheykhi; M. H. Dehghani

    2015-05-02

    In this paper, we extend the study on the nonlinear power-law Maxwell field to dilaton gravity. We introduce the $(n+1)$-dimensional action in which gravity is coupled to a dilaton and power-law nonlinear Maxwell field, and obtain the field equations by varying the action. We construct a new class of higher dimensional topological black hole solutions of Einstein-dilaton theory coupled to a power-law nonlinear Maxwell field and investigate the effects of the nonlinearity of the Maxwell source as well as the dilaton field on the properties of the spacetime. Interestingly enough, we find that the solutions exist provided one assumes three Liouville-type potentials for the dilaton field, and in case of the Maxwell field one of the Liouville potential vanishes. After studying the physical properties of the solutions, we compute the mass, charge, electric potential and temperature of the topological dilaton black holes. We also study thermodynamics and thermal stability of the solutions and disclose the effects of the dilaton field and the power-law Maxwell field on the thermodynamics of these black holes. Finally, we comment on the dynamical stability of the obtained solutions in four-dimensions.

  13. Marijanin Strawberry Hill

    E-Print Network [OSTI]

    Novak, Charles; Roschitz, Alex; Pirnat-Greenberg, Marta

    2012-06-01

    KU students of Croatian, under the supervision of their instructor, Marta Pirnat-Greenberg, interview artist Marijana Grisnik, a painter in the Croatian naive style living in Strawberry Hill, Kansas City. This is the first of a series on Croatian...

  14. The Extended Power Law as Intrinsic Signature For a Black Hole

    E-Print Network [OSTI]

    Lev Titarchuk; Thomas Zannias

    1997-08-27

    We analyze the exact general relativistic exact integro-differential equation of radiative transfer describing the interaction of low energy photons with a Maxwellian distribution of hot electrons in gravitational field of a Schwarzschild black hole. We prove that due to Comptonization an initial arbitrary spectrum of low energy photons unavoidably results in spectra characterized by an extended power-law feature. We examine the spectral index by using both analytical and numerical methods for a variety of physical parameters as such the plasma temperature and the mass accretion rate. The presence of the event horizon as well as the behaviour of the null geodesics in its vicinity largely determine the dependence of the spectral index on the flow parameters. We come to the conclusion that the bulk motion of a converging flow is more efficient in upscattering photons than thermal Comptonization provided that the electron temperature in the flow is of order of a few keV or less. In this case, the spectrum observed at infinity consists of a soft component produced by those input photons that escape after a few scatterings without any significant energy change and of hard component (described by a power law) produced by the photons that underwent significant upscattering. The luminosity of the power-law component is relatively small compared to that of the soft component. For accretion into black hole the spectral energy index of the power-law is always higher than one for plasma temperature of order of a few keV. This result suggests that the bulk motion Comptonization might be responsible for the power-law spectra seen in the black-hole X-ray sources.

  15. Accretion Disc Turbulence and the X-Ray Power Spectra of Black Hole High States

    E-Print Network [OSTI]

    Michael A. Nowak; Robert V. Wagoner

    1994-10-06

    The high state of black hole candidates is characterized by a quasi- thermal emission component at $kT \\sim 1$ keV. In addition, this state tends to have very low variability which indicates that it is relatively stable, at least on {\\it short} time scales. Most models of the high state imply that the bulk of the emission comes from an optically thick accretion disc; therefore, this state may be an excellent laboratory for testing our ideas about the physics of accretion discs. In this work we consider the implications of assuming that accretion disc viscosity arises from some form of turbulence. Specifically, we consider the simple case of three dimensional hydrodynamic turbulence. It is found that the coupling of such turbulence to acoustic modes in the disc can alter the disc emission. We calculate the amplitude and frequencies of this modulation, and we express our results in terms of the X-ray power spectral density. We compare our calculations with observations of the black hole candidate GS 1124-683, and show that for certain parameters we can reproduce some of the high frequency power. We then briefly explore mechanisms for producing the low frequency power, and note the difficulty that a single variability mechanism has in reproducing the full range of observed variability. In addition, we outline ways in which future spacecraft missions -- such as USA and XTE -- can further constrain our model, especially at frequencies above $\\sim 10^2$ Hz.

  16. $P-V$ criticality of AdS black hole in the Einstein-Maxwell-power-Yang-Mills gravity

    E-Print Network [OSTI]

    Ming Zhang; Zhan-Ying Yang; De-Cheng Zou; Wei Xu; Rui-Hong Yue

    2014-12-03

    We study the $P-V$ critical behaivor of N-dimensional AdS black holes in Einstein-Maxwell-power-Yang-Mills gravity. Our results show the existence of the Van der Waals like small-large black hole phase transitions when taking some special values of charges of the Maxwell and Yang-Mills (YM) fields. Further to calculate the critical exponents of the black holes at the critical point, we find that they are the same as those in the Van der Waals liquid-gas system.

  17. Central Black Hills folio, South Dakota 

    E-Print Network [OSTI]

    Darton, Nelson Horatio, 1865-1948.

    1925-01-01

    ?????..?... 35 2.5 Lagrange Type Beam Finite Elements???...?????.? 37 vii? ? CHAPTER III DEVELOPMENT OF PLATE BENDING MODELS???.?.. Page 40 3.1 Model I of Plate Bending????...??????????. 42 3.1.1 Weighted Residual Statements of Model I??..??.?. 42...????.? 60 3.4.2 Finite Element Equations of Model IV??..????... 62 3.5 The Lagrange Type Plate Finite Elements?...??????... 67 CHAPTER IV NONLINEAR EQUATION SOLVING PROCEDURES.?.?.. 69 4.1 Direct Iterative Method????????..??????? 69 4...

  18. Can black-hole neutrino-cooled disks power short gamma-ray bursts?

    E-Print Network [OSTI]

    Liu, Tong; Hou, Shu-Jin; Gu, Wei-Min

    2015-01-01

    Stellar-mass black holes (BHs) surrounded by neutrino-dominated accretion flows (NDAFs) are the plausible candidates to power gamma-ray bursts (GRBs) via neutrinos emission and their annihilation. The progenitors of short-duration GRBs (SGRBs) are generally considered to be compact binaries mergers. According to the simulation results, the disk mass of the NDAF has been limited after merger events. We can estimate such disk mass by using the current SGRB observational data and fireball model. The results show that the disk mass of a certain SGRB mainly depends on its output energy, jet opening angle, and central BH characteristics. Even for the extreme BH parameters, some SGRBs require massive disks, which approach or exceed the limits in simulations. We suggest that there may exist alternative magnetohydrodynamic processes or some mechanisms increasing the neutrino emission to produce SGRBs with the reasonable BH parameters and disk mass.

  19. Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean and fast.

    E-Print Network [OSTI]

    Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean at their tachometers to be sure that they were running. You would not expect that of a diesel, however. Yet these are diesel engines. The world has been looking to gas/electric hybrids and fuel cells for future fuel

  20. Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean and fast.

    E-Print Network [OSTI]

    passenger-car importer, Volkswagen, with new models of their own. As of now, only the VW Jetta/Golf/Beetle 1Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean, and be within a gnat's whisker of a gasoline hybrid like the Prius. The studies of total energy consumption

  1. EA-1581: Sand Hills Wind Project, Wyoming

    Broader source: Energy.gov [DOE]

    The Bureau of Land Management, with DOE’s Western Area Power Administration as a cooperating agency, was preparing this EA to evaluate the environmental impacts of a proposal to construct, operate, and maintain the Sand Hills Wind Energy Facility on private and federal lands in Albany County, Wyoming. If the proposed action had been implemented, Western would have interconnected the proposed facility to an existing transmission line. This project has been canceled.

  2. Thermodynamics of topological black holes in Brans-Dicke gravity with a power-law Maxwell field

    E-Print Network [OSTI]

    Zangeneh, M Kord; Sheykhi, A

    2015-01-01

    In this paper, we present a new class of higher dimensional exact topological black hole solutions of the Brans-Dicke theory in the presence of a power-law Maxwell field as the matter source. For this aim, we introduce a conformal transformation which transforms the Einstein-dilaton-power-law Maxwell gravity Lagrangian to the Brans-Dicke-power-law Maxwell theory one. Then, by using this conformal transformation, we obtain the desired solutions. Next, we study the properties of the solutions and conditions under which we have black holes. Interestingly enough, we show that there is a cosmological horizon in the presence of a negative cosmological constant. Finally, we calculate the temperature and charge and then by calculating the Euclidean action, we obtain the mass, the entropy and the electromagnetic potential energy. We find that the entropy does not respect the area law, and also the conserved and thermodynamic quantities are invariant under conformal transformation. Using these thermodynamic and conserv...

  3. Discovery of 0.08 Hz QPO in the power spectrum of black hole candidate XTE J1118+480

    E-Print Network [OSTI]

    M. Revnivtsev; R. Sunyaev; K. Borozdin

    2000-05-10

    We found a strong QPO feature at 0.085+/-0.002 Hz in the power spectrum of X-ray transient XTE J1118+480. The QPO was detected in PCA/RXTE data with an amplitude close to 10% rms, and the width 0.034+/-0.006 Hz. The shape of the power spectrum is typical for black hole candidates: almost flat at frequencies lower than 0.03 Hz, roughly power law with slope ~1.2 from 0.03 to 1 Hz, with a following steepening to ~1.6 at higher frequencies. The hard energy spectrum detected up to ~150 keV and the absence of significant X-ray variability at the high frequencies above 100 Hz strongly support the identification of XTE J1118+480 as black hole transient.

  4. ENERGY-DEPENDENT POWER SPECTRAL STATES AND ORIGIN OF APERIODIC VARIABILITY IN BLACK HOLE BINARIES

    SciTech Connect (OSTI)

    Yu Wenfei; Zhang Wenda, E-mail: wenfei@shao.ac.cn [Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030 (China)

    2013-06-20

    We found that the black hole candidate MAXI J1659-152 showed distinct power spectra, i.e., power-law noise (PLN) versus band-limited noise (BLN) plus quasi-periodic oscillations (QPOs) below and above about 2 keV, respectively, in observations with Swift and the Rossi X-ray Timing Explorer during the 2010 outburst, indicating a high energy cutoff of the PLN and a low energy cutoff of the BLN and QPOs around 2 keV. The emergence of the PLN and the fading of the BLN and QPOs initially took place below 2 keV when the source entered the hard intermediate state and settled in the soft state three weeks later. The evolution was accompanied by the emergence of the disk spectral component and decreases in the amplitudes of variability in the soft and hard X-ray bands. Our results indicate that the PLN is associated with an optically thick disk in both hard and intermediate states, and the power spectral state is independent of the X-ray energy spectral state in a broadband view. We suggest that in the hard or intermediate state, the BLN and QPOs emerge from the innermost hot flow subjected to Comptonization, while the PLN originates from the optically thick disk farther out. The energy cutoffs of the PLN and the BLN or QPOs then follow the temperature of the seed photons from the inner edge of the optically thick disk, while the high frequency cutoff of the PLN follows the orbital frequency of the inner edge of the optically thick disk as well.

  5. Tidal Disruption and Magnetic Flux Capture: Powering a Jet from a Quiescent Black Hole

    E-Print Network [OSTI]

    Kelley, Luke Zoltan; Narayan, Ramesh

    2014-01-01

    The transient Swift J1644+57 is believed to have been produced by an unlucky star wandering too close to a supermassive black hole (BH) leading to a tidal disruption event. This unusual flare displayed highly super-Eddington X-ray emission which likely originated in a relativistic, collimated jet. This presents challenges to modern accretion and jet theory as upper limits of prior BH activity, which we obtain from the radio afterglow of this event, imply that both the pre-disruption BH and stellar magnetic fluxes fall many orders of magnitude short of what is required to power the observed X-ray luminosity. We argue that a pre-existing, "fossil" accretion disc can contain a sufficient reservoir of magnetic flux and that the stellar debris stream is capable of dragging this flux into the BH. To demonstrate this, we perform local, 3D magnetohydrodynamic simulations of the disc--stream interaction and demonstrate that the interface between the two is unstable to mixing. This mixing entrains a sufficient amount o...

  6. Thermodynamics of topological black holes in Brans-Dicke gravity with a power-law Maxwell field

    E-Print Network [OSTI]

    M. Kord Zangeneh; M. H. Dehghani; A. Sheykhi

    2015-09-20

    In this paper, we present a new class of higher dimensional exact topological black hole solutions of the Brans-Dicke theory in the presence of a power-law Maxwell field as the matter source. For this aim, we introduce a conformal transformation which transforms the Einstein-dilaton-power-law Maxwell gravity Lagrangian to the Brans-Dicke-power-law Maxwell theory one. Then, by using this conformal transformation, we obtain the desired solutions. Next, we study the properties of the solutions and conditions under which we have black holes. Interestingly enough, we show that there is a cosmological horizon in the presence of a negative cosmological constant. Finally, we calculate the temperature and charge and then by calculating the Euclidean action, we obtain the mass, the entropy and the electromagnetic potential energy. We find that the entropy does not respect the area law, and also the conserved and thermodynamic quantities are invariant under conformal transformation. Using these thermodynamic and conserved quantities, we show that the first law of black hole thermodynamics is satisfied on the horizon.

  7. Dr. Kathleen Hill Associate Professor

    E-Print Network [OSTI]

    Kari, Lila

    ://www.uwo.ca/biology/Faculty/hill/index.htm Genomes DNA Genes to Proteins Kathleen Hill Lab Tour WSC 333 #12;2 The human genome is a multi-volume instruction manual · The GENOME is a multi-volume instruction manual · Each CHROMOSOME is a volume of text letter alphabet A,C,G,T NUCLEOTIDES Our instruction manual can be read in our DNA Genome Chromosome Gene

  8. Fenton Hill Hdr Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbHFarinello Geothermal PowerGuidelines | OpenFediRenewableFenton Hill

  9. Hills Creek Powerhouse Turbine and Unit Rehabilitation

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (JournalvivoHigh energyHighland View school HighlandHydrogen andHighlyHills

  10. The balance of power: accretion and feedback in stellar mass black holes

    E-Print Network [OSTI]

    Fender, Rob

    2015-01-01

    In this review we discuss the population of stellar-mass black holes in our galaxy and beyond, which are the extreme endpoints of massive star evolution. In particular we focus on how we can attempt to balance the available accretion energy with feedback to the environment via radiation, jets and winds, considering also possible contributions to the energy balance from black hole spin and advection. We review quantitatively the methods which are used to estimate these quantities, regardless of the details of the astrophysics close to the black hole. Once these methods have been outlined, we work through an outburst of a black hole X-ray binary system, estimating the flow of mass and energy through the different accretion rates and states. While we focus on feedback from stellar mass black holes in X-ray binary systems, we also consider the applicability of what we have learned to supermassive black holes in active galactic nuclei. As an important control sample we also review the coupling between accretion an...

  11. ENVIRONMENTAL VARIABLES AFFECTING ANT (FORMICIDAE) COMMUNITY COMPOSITION IN MISSISSIPPI'S BLACK BELT

    E-Print Network [OSTI]

    Ray, David

    BELT AND FLATWOODS REGIONS By JoVonn Grady Hill A Thesis Submitted to the Faculty of Mississippi State COMPOSITION IN MISSISSIPPI'S BLACK BELT AND FLATWOODS REGIONS. By JoVonn Grady Hill Approved: Richard L. Brown (FORMICIDAE) COMMUNITY COMPOSITION IN MISSISSIPPI'S BLACK BELT AND FLATWOODS REGIONS Pages in Study: 72

  12. The powerful jet of an off-nuclear intermediate-mass black hole in the spiral galaxy NGC 2276

    E-Print Network [OSTI]

    Mezcua, M; Lobanov, A P; Sutton, A D

    2015-01-01

    Jet ejection by accreting black holes is a mass invariant mechanism unifying stellar and supermassive black holes (SMBHs) that should also apply for intermediate-mass black holes (IMBHs), which are thought to be the seeds from which SMBHs form. We present the detection of an off-nuclear IMBH of $\\sim$5 $\\times$ 10$^{4}$ M$_\\odot$ located in an unusual spiral arm of the galaxy NGC 2276 based on quasi-simultaneous \\textit{Chandra} X-ray observations and European VLBI Network (EVN) radio observations. The IMBH, NGC2276-3c, possesses a 1.8 pc radio jet that is oriented in the same direction as large-scale ($\\sim$650 pc) radio lobes and whose emission is consistent with flat to optically thin synchrotron emission between 1.6 GHz and 5 GHz. Its jet kinetic power ($4 \\times 10^{40}$ erg s$^{-1}$) is comparable to its radiative output and its jet efficiency ($\\geq$ 46\\%) is as large as that of SMBHs. A region of $\\sim$300 pc along the jet devoid of young stars could provide observational evidence of jet feedback from...

  13. Testing the Kerr-nature of stellar-mass black hole candidates by combining the continuum-fitting method and the power estimate of transient ballistic jets

    E-Print Network [OSTI]

    Cosimo Bambi

    2012-01-25

    Astrophysical black hole candidates are thought to be the Kerr black holes predicted by General Relativity, as these objects cannot be explained otherwise without introducing new physics. However, there is no observational evidence that the space-time around them is really described by the Kerr solution. The Kerr black hole hypothesis can be tested with the already available X-ray data by extending the continuum-fitting method, a technique currently used by astronomers to estimate the spins of stellar-mass black hole candidates. In general, we cannot put a constraint on possible deviations from the Kerr geometry, but only on some combination between these deviations and the spin. The measurement of the radio power of transient jets in black hole binaries can potentially break this degeneracy, thus allowing for testing the Kerr-nature of these objects.

  14. EIS-0266: Glass Mountain/Four Mile Hill Geothermal Project, California

    Broader source: Energy.gov [DOE]

    The EIS analyzes BPA's proposed action to approve the Transmission Services Agreements (TSAs) and Power Purchase Agreements (PPAs) with Calpine Siskiyou Geothermal Partners, L.P. (Calpine) to acquire output from the Fourmile Hill Geothermal Development Project (Project).

  15. Spittal Hill Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Spittal Hill Wind Farm Jump to: navigation, search Name: Spittal Hill Wind Farm Place: United Kingdom Sector: Wind energy Product: Set up to manage wind projects in the Scotland....

  16. Black oxide nanoparticles as durable solar absorbing material for high-temperature concentrating solar power system

    E-Print Network [OSTI]

    California at San Diego, University of

    Available online 8 January 2015 Keywords: Concentrating solar power Solar absorber Cobalt oxide Light trapping High temperature a b s t r a c t Concentrating solar power is becoming an increasingly important an increasingly urgent need for human society [1,2]. Concentrating solar power (CSP) systems (or solar thermal sys

  17. Tax Credits, Rebates & Savings | Department of Energy

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

    Black Hills Power- Commercial Energy Efficiency Programs Black Hills Power provides rebates for its commercial customers who install energy efficient heat pumps, motors, variable...

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    Black Hills Power- Commercial Energy Efficiency Programs Black Hills Power provides rebates for its commercial customers who install energy efficient heat pumps, motors,...

  19. Is radio jet power linearly proportional to the product of central black hole mass and Eddington ratio in AGN?

    E-Print Network [OSTI]

    Liu, Xiang

    2014-01-01

    A model for the relation between radio jet power and the product of central black hole (BH) mass and Eddington ratio of AGN is proposed, and the model is examined with data from the literature. We find that radio jet power positively correlates but not linearly with the product of BH mass ($m$ in solar mass) and Eddington ratio ($\\lambda$), and the power law indices ($\\mu$) are significantly less than unity for relatively low accretion ($\\lambda<0.1$) AGN, $P_{j}\\propto (\\lambda m)^{\\mu}$, in the radio galaxies and the Seyfert galaxies. This leads to a negative correlation between radio loudness and $\\lambda m$ for the low luminosity AGN, i.e. $R\\propto (\\lambda m)^{\\rho}$ with $\\rho=(7/6)\\mu-1<0$, which may be attributed to a contribution of BH spin to total jet power assuming that the spin induced jet is gradually suppressed as the accretion rate increases. Whereas, for the high-z quasars which often show the slope $\\mu\\geq1$, a positive correlation between the radio loudness and disc luminosity is pr...

  20. Are Ultra Long Gamma Ray Bursts powered by a black hole spinning down?

    E-Print Network [OSTI]

    Nathanail, Antonios

    2015-01-01

    Gamma-ray bursts (GRBs) are violent explosions, coming from cosmological distances. They are detected in gamma-rays (also X-rays, UV, optical, radio) almost every day, and have typical durations of a few seconds to a few minutes. Some GRBs have been reported with extraordinary duration of 10^4 sec. These are called Ultra Long GRBs. It has been debated whether these form a new distinct class of events or whether they are similar to long GRBs. According to Blandford & Znajek (1977), the spin energy of a rotating black hole can be extracted electromagnetically, should the hole be endowed with a magnetic field supported by electric currents in a surrounding disk. We argue that this can be the case for the central engines of GRBs and we show that the duration of the burst depends on the magnetic flux accumulated on the event horizon of the black hole. We thus estimate the surface magnetic field of a possible progenitor star, and we conclude that an Ultra Long GRB may originate from a progenitor star with a rel...

  1. Optimization of Acetylene Black Conductive Additive andPolyvinylidene Difluoride Composition for High Power RechargeableLithium-Ion Cells

    SciTech Connect (OSTI)

    Liu, G.; Zheng, H.; Battaglia, V.S.; Simens, A.S.; Minor, A.M.; Song, X.

    2007-07-01

    Fundamental electrochemical methods were applied to study the effect of the acetylene black (AB) and the polyvinylidene difluoride (PVDF) polymer binder on the performance of high-power designed rechargeable lithium ion cells. A systematic study of the AB/PVDF long-range electronic conductivity at different weight ratios is performed using four-probe direct current tests and the results reported. There is a wide range of AB/PVDF ratios that satisfy the long-range electronic conductivity requirement of the lithium-ion cathode electrode; however, a significant cell power performance improvement is observed at small AB/PVDF composition ratios that are far from the long-range conductivity optimum of 1 to 1.25. Electrochemical impedance spectroscopy (EIS) tests indicate that the interfacial impedance decreases significantly with increase in binder content. The hybrid power pulse characterization results agree with the EIS tests and also show improvement for cells with a high PVDF content. The AB to PVDF composition plays a significant role in the interfacial resistance. We believe the higher binder contents lead to a more cohesive conductive carbon particle network that results in better overall all local electronic conductivity on the active material surface and hence reduced charge transfer impedance.

  2. Woodland Hills, Utah: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:Wizard Power Pty Ltd JumpWoodcliffWoodlakeHills, Utah:

  3. Black Pine Engineering

    Office of Energy Efficiency and Renewable Energy (EERE)

    Black Pine Engineering is commercializing a disruptive technology in the turbomachinery industry. Using a patented woven composite construction, Black Pine Engineering can make turbomachines (turbines, compressors) that are cheaper and lighter than competing technologies. Using this technology, Black Pine Engineering will sell turbo-compressors which solve the problem of wasted steam in geothermal power plants.

  4. Hands-on tools for nanotechnology Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill,

    E-Print Network [OSTI]

    Falvo, Michael

    Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 S. Paulson and M. Falvo Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 A. Helser 3rdTech Corp, Chapel Hill, North Carolina 27516 R. M. Taylor II Department of Computer Science, University

  5. Creating Mountains out of Mole Hills: Automatic Identification of Hills and Ranges Using Morphometric Analysis

    E-Print Network [OSTI]

    1 Creating Mountains out of Mole Hills: Automatic Identification of Hills and Ranges Using that comprise them (that mountain ranges are a collection of clustered yet individually identifiable mountains for automatically discerning mountain ranges as well as the smaller hills that constitute them. A mountainous region

  6. Record Hill | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-b < RAPID‎Wind FarmReFuelRecentstressRecord Hill

  7. Glacier Hills | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View New Pages RecentPlant <Silver PeakGinerHills Jump to: navigation,

  8. Laurel Hill | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds Jump to:Laredo Ridge WindHill Jump to:

  9. Cedro Hill | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal Gradient Holes JumpHills Wind Facility

  10. Pleasant Hill Leadership Institute Founded in 1925, Pleasant Hill Baptist Church has worked for decades to facilitate the educational,

    E-Print Network [OSTI]

    Aazhang, Behnaam

    Pleasant Hill Leadership Institute Founded in 1925, Pleasant Hill Baptist, and spiritual leadership of the Fifth Ward community. They are engaged in a variety, amongst other population groups. In many ways, Pleasant Hill Baptist Church acts

  11. Independent Oversight Review, Hanford Site CH2M Hill Plateau...

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

    CH2M Hill Plateau Remediation Company - November 2012 Independent Oversight Review, Hanford Site CH2M Hill Plateau Remediation Company - November 2012 November 2012 Review of the...

  12. Community Power Works for Small Business | Department of Energy

    Energy Savers [EERE]

    Works for Small Business Community Power Works for Small Business Information on Community Power Works in Seattle and their small business offerings, Capitol Hill Chamber of...

  13. Powerful radiative jets in super-critical accretion disks around non-spinning black holes

    E-Print Network [OSTI]

    Sadowski, Aleksander

    2015-01-01

    We describe a set of simulations of super-critical accretion onto a non-rotating supermassive BH. The accretion flow is radiation pressure dominated and takes the form of a geometrically thick disk with twin low-density funnels around the rotation axis. For accretion rates $\\gtrsim 10 \\dot M_{\\rm Edd}$, there is sufficient gas in the funnel to make this region optically thick. Radiation from the disk first flows into the funnel, after which it accelerates the optically thick funnel gas along the axis. The resulting jet is baryon-loaded and has a terminal density-weighted velocity $\\approx 0.3c$. Much of the radiative luminosity is converted into kinetic energy by the time the escaping gas becomes optically thin. For an observer viewing down the axis, the isotropic equivalent luminosity of total energy is as much as $10^{48}\\,\\rm erg\\,s^{-1}$ for a $10^7 M_\\odot$ BH accreting at $10^3$ Eddington. Therefore, energetically, the simulated jets are consistent with observations of the most powerful tidal disruption...

  14. Center for Advanced Power Systems CAPS | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal Gradient Holes JumpHills WindBlackAdvanced Power

  15. Black Hills Energy (Electric) - Commercial Energy Efficiency Program |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy||slideshowSeptemberpetroleum is

  16. Black Hills Energy (Electric) - Residential Energy Efficiency Program |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy||slideshowSeptemberpetroleum isDepartment of

  17. Black Hills Energy (Gas) - Commercial Energy Efficiency Program |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy||slideshowSeptemberpetroleum isDepartment

  18. Black Hills Energy (Gas) - Commercial Energy Efficiency Rebate Programs |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy||slideshowSeptemberpetroleum

  19. Black Hills Energy (Gas) - Residential Energy Efficiency Program |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy||slideshowSeptemberpetroleumDepartment of

  20. Black Hills Energy (Gas) - Residential Energy Efficiency Rebate Programs |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy||slideshowSeptemberpetroleumDepartment

  1. Black Hills Energy (Gas) - Residential New Construction Rebate Program |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p

  2. RING-DIAGRAM ANALYSIS WITH GONG++ T. Corbard 1 , C. Toner 1 , F. Hill 1 , K. D. Hanna 1 , D. A. Haber 2 , B. W. Hindman 2 , and

    E-Print Network [OSTI]

    Corbard, Thierry

    1 RING-DIAGRAM ANALYSIS WITH GONG++ T. Corbard 1 , C. Toner 1 , F. Hill 1 , K. D. Hanna 1 , D. A-HEPL, Stanford, CA 94305-4085, USA ABSTRACT Images from the updated GONG network (GONG+) have been produced since of the new GONG pipeline (GONG++) (Hill et al., 2003). We present here the data-cube, 3D power spectra

  3. University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill Department of

    E-Print Network [OSTI]

    Rowe, Daniel B.

    University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill Chen Weili Lin§ Daniel B. Rowe¶ Bradley G. Peterson The University of North Carolina at Chapel Hill, hzhu@bios.unc.edu The University of North Carolina at Chapel Hill, liyimei

  4. Millstone Hill Thomson Scatter Results for 1969

    E-Print Network [OSTI]

    Evans, J. V.

    1974-07-23

    This report summarizes the results for the electron-density distribution, electron and ion temperatures, and vertical ionization fluxes in the F-region obtained during 1969 using the Millstone Hill (42.6°N, 71.5°W) Thomson ...

  5. Hills Creek Powerhouse Turbine and Unit Rehabilitation

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

    and oxygen content suitable for fish, require the project to discharge a minimum of 300 cfs throughout its entire operating head range. The Francis runners at Hills Creek have...

  6. Hill Air Force Base Energy Performance Contract 

    E-Print Network [OSTI]

    Leach, M. D.

    1996-01-01

    This paper describes a basewide energy performance contract in progress at Hill Air Force Base (AFB) near Ogden, Utah. This performance contract differs from many performance contracts in that energy conservation measures (ECMs) which provide short...

  7. Millstone Hill Thomson Scatter Results for 1965

    E-Print Network [OSTI]

    Evans, J. V.

    1969-12-08

    This report presents F-region electron densities, and electron and ion temperatures observed during the year 1965 at the Millstone Hill Radar Observatory (42.6°N. 71.5“W) by the UHF Thomson (incoherent) scatter radar. The ...

  8. Millstone Hill Thomson Scatter Results for 1964

    E-Print Network [OSTI]

    Evans, J. V.

    1967-11-15

    Thomson scatter (incoherent backscatter) observations of the ionosphere were made at Millstone Hill at a wavelength of 68 cm during 1964, for 30-hour periods every two weeks. These data have been employed to derive the ...

  9. Fenton Hill HDR Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbHFarinello Geothermal PowerGuidelines | OpenFediRenewableFenton Hill HDR

  10. Clover Hill High School Wind Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, searchClover Hill High School Wind Project

  11. Black Holes In Astronomy Black Holes In Astronomy

    E-Print Network [OSTI]

    Wagner, Stephan

    Black Hole horizon static limit ergosphere radiation magnetic fields jet jet #12;Black-hole accretion with a central bulge. #12;Click to edit Master text styles Second level Third level Fourth level Fifth level Jets and lobes of Cygnus A Carilli et al. Supermassive black holes are the most powerful engines in the Universe

  12. The 26 December (Boxing Day) 1997 sector collapse and debris avalanche at Soufriere Hills Volcano, Montserrat

    E-Print Network [OSTI]

    Belousov, Alexander

    , Russia 5 Institut de Physique du Globe de Paris (IPGP), 4 Place Jussieu, B 89, 75252 Cedex 05 Paris & Mullineaux 1981). At Soufriere Hills, an andesilic lava dome had grown over the unstable, hydro- thermally dome was exposed and depressurized, and it exploded to generate a powerful pyroclastic density current

  13. Transparent Mode Flip-Flops for Collapsible Pipelines Eric L. Hill and Mikko H. Lipasti

    E-Print Network [OSTI]

    Lipasti, Mikko H.

    Transparent Mode Flip-Flops for Collapsible Pipelines Eric L. Hill and Mikko H. Lipasti University of Wisconsin - Madison {elhill, mikko}@ece.wisc.edu Abstract Prior work has shown that collapsible pipelining% of the dynamic power in modern high performance microprocessors. Previous collapsible pipeline proposals either

  14. EA-1967: Hills Creek-Lookout Point Transmission Line Rebuild, Lane County, Oregon

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration is preparing an EA to assess potential environmental impacts of the proposed rebuild of its 26-mile 115 kilovolt (kV) wood-pole Hills Creek-Lookout Point transmission line, which is generally located between Lowell and Oakridge, in Lane County, Oregon.

  15. RELATIONSHIP BETWEEN THE KINETIC POWER AND BOLOMETRIC LUMINOSITY OF JETS: LIMITATION FROM BLACK HOLE X-RAY BINARIES, ACTIVE GALACTIC NUCLEI, AND GAMMA-RAY BURSTS

    SciTech Connect (OSTI)

    Ma, Renyi; Hou, Shujin; Xie, Fu-Guo E-mail: fgxie@shao.ac.cn

    2014-01-01

    The correlation between the kinetic power P {sub jet} and intrinsic bolometric luminosity L {sub jet} of jets may reveal the underlying jet physics in various black hole systems. Based on the recent work by Nemmen et al., we re-investigate this correlation with additional sources of black hole X-ray binaries (BXBs) in hard/quiescent states and low-luminosity active galactic nuclei (LLAGNs). The new sample includes 29 sets of data from 7 BXBs and 20 LLAGNs, with P {sub jet} and L {sub jet} being derived from spectral modeling of the quasi-simultaneous multi-band spectra under the accretion jet scenario. Compared to previous works, the range of luminosity is now enlarged to more than 20 decades, i.e., from ?10{sup 31} erg s{sup –1} to ?10{sup 52} erg s{sup –1}, which allows for better constraining of the correlation. One notable result is that the jets in BXBs and LLAGNs almost follow the same P {sub jet}-L {sub jet} correlation that was obtained from blazars and gamma-ray bursts. The slope indices we derived are 1.03 ± 0.01 for the whole sample, 0.85 ± 0.06 for the BXB subsample, 0.71 ± 0.11 for the LLAGN subsample, and 1.01 ± 0.05 for the LLAGN-blazar subsample, respectively. The correlation index around unit implies the independence of jet efficiency on the luminosity or kinetic power. Our results may further support the hypothesis that similar physical processes exist in the jets of various black hole systems.

  16. Episodic jet power extracted from a spinning black hole surrounded by a neutrino-dominated accretion flow in gamma-ray bursts

    SciTech Connect (OSTI)

    Cao, Xinwu [Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030 (China); Liang, En-Wei [Department of Physics and GXU-NAOC Center for Astrophysics and Space Sciences, Guangxi University, Nanning 530004 (China); Yuan, Ye-Fei, E-mail: cxw@shao.ac.cn, E-mail: lew@gxu.edu.cn, E-mail: yfyuan@ustc.edu.cn [Department of Astronomy, University of Sciences and Technology of China, Hefei, Anhui 230026 (China)

    2014-07-10

    It was suggested that the relativistic jets in gamma-ray bursts (GRBs) are powered via the Blandford-Znajek (BZ) mechanism or the annihilation of neutrinos and anti-neutrinos from a neutrino cooling-dominated accretion flow (NDAF). The advection and diffusion of the large-scale magnetic field of an NDAF is calculated, and the external magnetic field is found to be dragged inward efficiently by the accretion flow for a typical magnetic Prandtl number P{sub m}=?/??1. The maximal BZ jet power can be ?10{sup 53}-10{sup 54} erg s{sup –1} for an extreme Kerr black hole, if an external magnetic field with 10{sup 14} Gauss is advected by the NDAF. This is roughly consistent with the field strength of the disk formed after a tidal disrupted magnetar. The accretion flow near the black hole horizon is arrested by the magnetic field if the accretion rate is below than a critical value for a given external field. The arrested accretion flow fails to drag the field inward and the field strength decays, and then the accretion re-starts, which leads to oscillating accretion. The typical timescale of such episodic accretion is of an order of one second. This can qualitatively explain the observed oscillation in the soft extended emission of short-type GRBs.

  17. EA-118 Hill County Electric Cooperative, Inc. | Department of...

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

    energy to Canada. EA-118 Hill County.pdf More Documents & Publications PP-118 Hill County Electric Cooperative Inc EA-209 Cargill-Alliant, LLC EA-211 DTE Energy Trading, Inc...

  18. EA-1824: Record Hill Wind Project in Roxbury, ME | Department...

    Office of Environmental Management (EM)

    to Record Hill Wind, LLC for Construction of a Wind Energy Project in Roxbury, Maine July 11, 2011 EA-1824: Finding of No Significant Impact Loan Guarantee to Record Hill...

  19. Contemporizing Performance: Mexican California and the Pádua Hills Theatre

    E-Print Network [OSTI]

    Arrizón, Alicia

    1993-01-01

    The Padua Hills Theatre ÁGUILA-NOPAL EAGLE AND CACTUS THE FEnotes of "Águila y Nopal. "Padua Hills Theatre Collection atAmador directed Águila y nopal (Eagle and Cactus, Figure

  20. Los Alamos National Laboratory Investigates Fenton Hill to Support...

    Office of Environmental Management (EM)

    Investigates Fenton Hill to Support Future Land Use Los Alamos National Laboratory Investigates Fenton Hill to Support Future Land Use July 29, 2014 - 12:00pm Addthis Sampling...

  1. DOE Settles Elk Hills Equity Claims | Department of Energy

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

    Settles Elk Hills Equity Claims DOE Settles Elk Hills Equity Claims April 22, 2011 - 4:58pm Addthis The Department of Energy announced today that it has settled a longstanding...

  2. Elk Hills: still out in front

    SciTech Connect (OSTI)

    Rintoul, B.

    1982-07-01

    The producing history and capacity of the Elk Hills Oil and Gas Fields in California are described. Developments in the field are discussed, including waterflooding. The field presently produces ca. 160,000 bpd of oil and 350 mmcfd of natural gas. Gas liquids production totals ca. 683,000 gal/day. Waterflooding is expected to pay an increasingly important role in the production of crude oil. Steaming techniques also are viewed with favor after analysis of results of pilot projects. Exploratory develoment in Elk Hills also continues.

  3. Millstone Hill Thomson Scatter Results for 1971

    E-Print Network [OSTI]

    Evans, J. V.

    1978-03-24

    During 1971, the incoherent scatter radar at Millstone Hill (42.6°N, 71.5°W) was employed to measure the electron density, electron and ion temperatures, and the vertical velocity of the 0[superscript +] ions in the F-region ...

  4. Gravitational radiation from radial infall of a particle into a Schwarzschild black hole. A numerical study of the spectra, quasi-normal modes and power-law tails

    E-Print Network [OSTI]

    Ermis Mitsou

    2010-12-17

    The computation of the gravitational radiation emitted by a particle falling into a Schwarzschild black hole is a classic problem studied already in the 1970s. Here we present a detailed numerical analysis of the case of radial infall starting at infinity with no initial velocity. We compute the radiated waveforms, spectra and energies for multipoles up to l = 6, improving significantly on the numerical accuracy of existing results. This is done by integrating the Zerilli equation in the frequency domain using the Green's function method. The resulting wave exhibits a "ring-down" phase whose dominant contribution is a superposition of the quasi-normal modes of the black hole. The numerical accuracy allows us to recover the frequencies of these modes through a fit of that part of the wave. Comparing with direct computations of the quasi-normal modes we reach a \\sim 10^{-4} to \\sim 10^{-2} accuracy for the first two overtones of each multipole. Our numerical accuracy also allows us to display the power-law tail that the wave develops after the ring-down has been exponentially cut-off. The amplitude of this contribution is \\sim 10^2 to \\sim 10^3 times smaller than the typical scale of the wave.

  5. Optimization of Acetylene Black Conductive Additive and Polyvinylidene Difluoride Composition for High Power Rechargeable Lithium-Ion Cells

    E-Print Network [OSTI]

    Liu, G.; Zheng, H.; Battaglia, V.S.; Simens, A.S.; Minor, A.M.; Song, X.

    2007-01-01

    7), A365 G. M. Ehrlich, Lithium-ion Batteries, 3rd ed ed. (High Power Rechargeable Lithium-Ion Cells G. Liu a,z , H.local environment. (A) lithium-ion mass transfer in the

  6. Site Characterization for CO{sub 2} Storage from Coal-fired Power Facilities in the Black Warrior Basin of Alabama

    SciTech Connect (OSTI)

    Clark, Peter; Pashin, Jack; Carlson, Eric; Goodliffe, Andrew; McIntyre-Redden, Marcella; Mann, Steven; Thompson, Mason

    2012-08-31

    Coal-fired power plants produce large quantities of carbon dioxide. In order to mitigate the greenhouse gas emissions from these power plants, it is necessary to separate and store the carbon dioxide. Saline formations provide a potential sink for carbon dioxide and delineating the capacity of the various known saline formations is a key part of building a storage inventory. As part of this effort, a project was undertaken to access the storage capacity of saline reservoirs in the Black Warrior Basin of Alabama. This basin has been a productive oil and gas reservoir that is well characterized to the west of the two major coal-fired power plants that are north of Birmingham. The saline zones were thought to extend as far east as the Sequatchie Anticline which is just east of the power plants. There is no oil or gas production in the area surrounding the power plants so little is known about the formations in that area. A geologic characterization well was drilled on the Gorgas Power Plant site, which is the farthest west of two power plants in the area. The well was planned to be drilled to approximately 8,000 feet, but drilling was halted at approximately 5,000 feet when a prolific freshwater zone was penetrated. During drilling, a complete set of cores through all of the potential injection zones and the seals above these zones were acquired. A complete set of openhole logs were run along with a vertical seismic profile (VSP). Before drilling started two approximately perpendicular seismic lines were run and later correlated with the VSP. While the zones that were expected were found at approximately the predicted depths, the zones that are typically saline through the reservoir were found to be saturated with a light crude oil. Unfortunately, both the porosity and permeability of these zones were small enough that no meaningful hydrocarbon production would be expected even with carbon dioxide flooding. iv While this part of the basin was found to be unsuitable for carbon dioxide injection, there is still a large storage capacity in the basin to the west of the power plants. It will, however, require pipeline construction to transport the carbon dioxide to the injection sites.

  7. HDR Geothermal Energy: Important Lessons From Fenton Hill

    National Nuclear Security Administration (NNSA)

    Stanford, California, February 9-11, 2009 SGP-TR-187 HOT DRY ROCK GEOTHERMAL ENERGY: IMPORTANT LESSONS FROM FENTON HILL Donald W. Brown Los Alamos National Laboratory...

  8. Surface Gas Sampling At Fenton Hill HDR Geothermal Area (Grigsby...

    Open Energy Info (EERE)

    Surface Gas Sampling At Fenton Hill HDR Geothermal Area (Grigsby, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Surface Gas...

  9. Surface Gas Sampling At Fenton Hill HDR Geothermal Area (Goff...

    Open Energy Info (EERE)

    Surface Gas Sampling At Fenton Hill HDR Geothermal Area (Goff & Janik, 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Surface Gas Sampling...

  10. WIND DATA REPORT Camden Hills Regional High School, ME

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Camden Hills Regional High School, ME December 1, 2006 ­ February 28, 2007...................................................................................................................... 7 Wind Speed Time Series............................................................................................................. 8 Wind Speed Distributions

  11. WIND DATA REPORT Camden Hills Regional High School, ME

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Camden Hills Regional High School, ME March 1st 2006 to May 31th 2006 Prepared.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  12. WIND DATA REPORT Camden Hills Regional High School, ME

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Camden Hills Regional High School, ME September 1st 2006 to November 30th 2006.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  13. WIND DATA REPORT Camden Hills Regional High School, ME

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Camden Hills Regional High School, ME December 1st 2005 to February 28th 2006.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  14. WIND DATA REPORT Camden Hills Regional High School, ME

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Camden Hills Regional High School, ME June 1st 2006 to August 31th 2006 Prepared.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  15. Modeling-Computer Simulations At Fenton Hill HDR Geothermal Area...

    Open Energy Info (EERE)

    Modeling-Computer Simulations At Fenton Hill HDR Geothermal Area (Brown & DuTeaux, 1997) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  16. Compound and Elemental Analysis At Fenton Hill HDR Geothermal...

    Open Energy Info (EERE)

    References D. G. Brookins, A. W. Laughlin (1983) Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Additional...

  17. Compound and Elemental Analysis At Fenton Hill HDR Geothermal...

    Open Energy Info (EERE)

    Geothermal Area (Rao, Et Al., 1996) Exploration Activity Details Location Fenton Hill HDR Geothermal Area Exploration Technique Compound and Elemental Analysis Activity Date 1996 -...

  18. Isotopic Analysis- Fluid At Fenton Hill HDR Geothermal Area ...

    Open Energy Info (EERE)

    Geothermal Area (Rao, Et Al., 1996) Exploration Activity Details Location Fenton Hill HDR Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1996 - 1996...

  19. Core Analysis At Fenton Hill HDR Geothermal Area (Brookins &...

    Open Energy Info (EERE)

    References D. G. Brookins, A. W. Laughlin (1983) Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Additional...

  20. Petrography Analysis At Fenton Hill HDR Geothermal Area (Laughlin...

    Open Energy Info (EERE)

    Petrography Analysis At Fenton Hill HDR Geothermal Area (Laughlin, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Petrography...

  1. PP-118 Hill County Electric Cooperative Inc | Department of Energy

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

    Documents & Publications EA-118 Hill County Electric Cooperative, Inc. PP-305 Montana Alberta Tie Ltd Application for presidential permit OE Docket No. PP-305 Montana Alberta Tie...

  2. CH2M HILL Plateau Remediation Company are

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

    HILL Plateau Remediation Company are safely removing contaminated equipment from the Plutonium Finishing Plant once used to produce plutonium during the Cold War at the Hanford...

  3. Marquam Hill Campus OHSU's central campus, Marquam Hill, is Portland's largest medical destination.

    E-Print Network [OSTI]

    Chapman, Michael S.

    . The intersection of SW Moody Ave & SW Gibbs St alone is host to an aerial tram, pedestrian bridge, streetcar, bike for Students OHSU Transportation & Parking Mail code: PP22A 3181 SW Sam Jackson Park Road Portland, OR 97239 Waterfront (SW Moody Ave & Gibbs St) to Marquam Hill (OHSU Kohler Pavilion) in 5 minutes. The tram operates

  4. Hills, Minnesota: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy Resources Jump to:Hershey,High-TemperatureHiles,Hillcrest, New York:IncHills,

  5. Sou Hills Geothermal Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity forSiliciumEnergy Inc JumpPennsylvania: EnergySonnenSou Hills

  6. Long Hill Energy Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA) JumpLiterature Review Home Qinsun'sHill Energy Ltd

  7. Red Hills Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-b < RAPID‎WindRecycleBank Jump to:Hills Wind Farm

  8. Steamboat Hills Geothermal Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope GmbHSoloPageBefore the SenateHills Geothermal Facility

  9. Sunny Hill Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEuropeEnergy Information RecentSundropEnergy JumpHill

  10. Wilmont Hills Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThinWarsaw,WhatUtilityRateNamingHelperVirginia:WillowWilmont Hills

  11. Goodnoe Hills Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View New Pages RecentPlantMagma Energy GroupDOESwitzerland)Goodnoe Hills

  12. Mendota Hills Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenariosMarysville MtMedical Area Total Egy Plt IncshallowHills Wind Farm

  13. Arbor Hills Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYork Jump| OpenExploration At TheWindAquillianHills

  14. Cedar Hills Wind Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal Gradient Holes JumpHills Wind Facility Jump to:

  15. Chandler Hills Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal Gradient HolesCentral,Chandler Hills Wind Farm Jump

  16. City of Castle Hills State of the City and Recommendations 

    E-Print Network [OSTI]

    Bright, Elise; Croxell, Christina

    2003-01-01

    stream_source_info 2006_CastleHills.pdf.txt stream_content_type text/plain stream_size 250 Content-Encoding ISO-8859-1 stream_name 2006_CastleHills.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ...

  17. Becky Hill Green Mountain DNA Conference LT-DNA Analysis

    E-Print Network [OSTI]

    Becky Hill ­ Green Mountain DNA Conference LT-DNA Analysis July 26, 2010 http of the Chief Medical Examiner, NYC Green Mountain DNA Conference Burlington, VT July 26, 2010 Low Template (LT generally aim for 0.5-2 ng 100 pg template 5 pg template #12;Becky Hill ­ Green Mountain DNA Conference LT

  18. Hill SyStem PlaStic mulcHed

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    a Hill SyStem PlaStic mulcHed Strawberry Production Guide for colder areaS #12;#12;i Trade names do they intend or imply discrimination against those not mentioned. Hill SyStem PlaStic mulcHed ..................................................................27 Consider Fall Laying of Extra Plastic Mulch

  19. Microsoft PowerPoint - 6 Mary Hill & Ming Ye

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996How to Apply forNavalReginald Agunwah Water(DOE) OfficeManaged andRisk

  20. McGraw-Hill 2008 Yearbook of Science & Technology The McGraw-Hill Companies "Solitons in Electrical Networks"

    E-Print Network [OSTI]

    Ricketts, David S.

    of wave energy within the pulse shape without dispersion and exhibit remarkable nonlinear dynamics dispersion of energy, the light-wave solitons can carry a large amount of digital information in longMcGraw-Hill 2008 Yearbook of Science & Technology © The McGraw-Hill Companies "Solitons

  1. Morphology of PolyethyleneCarbon Black Composites G. BEAUCAGE,1

    E-Print Network [OSTI]

    Beaucage, Gregory

    -ray scattering (SAXS) study of a conductive grade of carbon black and carbon black­polymer composites and a power-law scaling of polydispersity. One use of conductive black­polyethylene composites is in circuit(methyl methacrylate); carbon black; filler; composite; conductivity; percolation INTRODUCTION The morphology

  2. Town of Kill Devil Hills- Wind Energy Systems Ordinance

    Broader source: Energy.gov [DOE]

    In October 2007, the town of Kill Devil Hills adopted an ordinance to regulate the use of wind-energy systems. The ordinance directs any individual or organization wishing to install a wind-energy...

  3. Becky Hill ABI 3130xl Validation Applied Biosystems HID University/

    E-Print Network [OSTI]

    · Technology ­ Research programs in SNPs, miniSTRs, Y-STRs, mtDNA, qPCR ­ Assay and software development Experiments Performed at NIST Becky Hill ABI Seminar Series Future Trends in Forensic DNA Technology

  4. Rock Hill Utilities- Water Heater and Heat Pump Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Through the SmartChoice program, Rock Hill Utilities offers rebates for water heater and heat pump replacements. Information on financing for heat pumps can also be found on the web site listed...

  5. Town of Chapel Hill- Land-Use Management Ordinance

    Broader source: Energy.gov [DOE]

    In 2003, the Town of Chapel Hill adopted a land-use management ordinance that includes prohibitions against neighborhood or homeowners association covenants or other conditions of sale that...

  6. Cemex Black Mountain Quarry | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal Gradient Holes JumpHills WindBlack Mountain Quarry

  7. After runaway: The trans-Hill stage of planetesimal growth

    SciTech Connect (OSTI)

    Lithwick, Yoram [Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA and Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), Evanston, IL 60208 (United States)

    2014-01-01

    When planetesimals begin to grow by coagulation, they first enter an epoch of runaway, during which the biggest bodies grow faster than all the others. The questions of how runaway ends and what comes next have not been answered satisfactorily. We show that runaway is followed by a new stage—the 'trans-Hill stage'—that commences when the bodies that dominate viscous stirring ('big bodies') become trans-Hill, i.e., when their Hill velocity matches the random speed of the small bodies they accrete. Subsequently, the small bodies' random speed grows in lockstep with the big bodies' sizes, such that the system remains in the trans-Hill state. Trans-Hill growth is crucial for determining the efficiency of growing big bodies, as well as their growth timescale and size spectrum. Trans-Hill growth has two sub-stages. In the earlier one, which occurs while the stirring bodies remain sufficiently small, the evolution is collisionless, i.e., collisional cooling among all bodies is irrelevant. The efficiency of forming big bodies in this collisionless sub-stage is very low, ?10? << 1, where ? ? 0.005(a/AU){sup –1} is the ratio between the physical size of a body and its Hill radius. Furthermore, the size spectrum is flat (equal mass per size decade, i.e., q = 4). This collisionless trans-Hill solution explains results from previous coagulation simulations for both the Kuiper Belt and the asteroid belt. The second trans-Hill sub-stage commences once the stirring bodies grow big enough (>?{sup –1} × the size of the accreted small bodies). After that time, collisional cooling among small bodies controls the evolution. The efficiency of forming big bodies rises and the size spectrum becomes more top heavy. Trans-Hill growth can terminate in one of two ways, depending on the sizes of the small bodies. First, mutual accretion of big bodies can become significant and conglomeration proceeds until half of the total mass is converted into big bodies. This mode of growth may explain the observed size distributions of small bodies in the solar system and is explored in our subsequent work. Second, if the big bodies' orbits become separated by their Hill radius, oligarchy commences. This mode likely precedes the formation of fully fledged planets.

  8. Black hole Meissner effect and Blandford-Znajek jets

    E-Print Network [OSTI]

    Penna, Robert

    Spinning black holes tend to expel magnetic fields. In this way they are similar to superconductors. It has been a persistent concern that this black hole “Meissner effect” could quench jet power at high spins. This would ...

  9. This article was downloaded by: [University North Carolina -Chapel Hill] On: 19 July 2012, At: 11:00

    E-Print Network [OSTI]

    Shen, Haipeng

    This article was downloaded by: [University North Carolina - Chapel Hill] On: 19 July 2012, At: 11 of North Carolina at Chapel Hill, Chapel Hill, NC, 27599 b Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599 c Department of Statistics and Operations Research

  10. Department of Computer Science University of North Carolina at Chapel Hill March 2005 Hair modeling is crucial for generating realistic appearances of

    E-Print Network [OSTI]

    Pollefeys, Marc

    Department of Computer Science University of North Carolina at Chapel Hill March 2005 Motivation of the computational power towards the hairs that are the most significant to the viewer at a given time. Framework Our of the skeleton. The hair geometry (in any geometric representation) Long, curly, red hair blowing in the wind

  11. Quantum black hole inflation

    E-Print Network [OSTI]

    M. B. Altaie

    2001-05-07

    In this paper we follow a new approach for particle creation by a localized strong gravitational field. The approach is based on a definition of the physical vacuum drawn from Heisenberg uncertainty principle. Using the fact that the gravitational field red-shifts the frequency modes of the vacuum, a condition on the minimum stregth of the gravitational field required to achieve real particle creation is derived. Application of this requirement on a Schwartzchid black hole resulted in deducing an upper limit on the region, outside the event horizon, where real particles can be created. Using this regional upper limit, and considering particle creation by black holes as a consequence of the Casimir effect, with the assumption that the created quanta are to be added to the initial energy, we deduce a natural power law for the development of the event horizon, and consequently a logarithmic law for the area spectrum of an inflating black hole. Application of the results on a cosmological model shows that if we start with a Planck-dimensional black hole, then through the process of particle creation we end up with a universe having the presently estimated critical density. Such a universe will be in a state of eternal inflation.

  12. SEP Success Story: Turkey Hill Dairy: Where Energy is Not Left...

    Office of Environmental Management (EM)

    Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind SEP Success Story: Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind December 21, 2011 - 11:57am...

  13. SURVEYOR REPORT STANDARDS FOR THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    SURVEYOR REPORT STANDARDS FOR THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL A survey report is to accompany each digital survey submitted to the University of North Carolina at Chapel Hill. Reports describe

  14. Flint Hills Resources, LP- FE Dkt. No. 15-168-LNG

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Office of Fossil Energy (FE) of the Department of Energy (DOE) gives notice of receipt of an application, filed on November 5, 2015, by Flint Hills Resources, LP (Flint Hills), requesting long...

  15. Voluntary Protection Program Onsite Review, CH2M HILL B&W West...

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

    CH2M HILL B&W West Valley LLC, West Valley Demonstration Project - October 2013 Voluntary Protection Program Onsite Review, CH2M HILL B&W West Valley LLC, West Valley Demonstration...

  16. The Naming, Identification, and Protection of Place in the Loess Hills of the Middle Missouri Valley

    E-Print Network [OSTI]

    McDermott, David Thomas

    2009-11-09

    Definitions of the extent of the Loess Hills of the Missouri River valley have become smaller over the last century. The reduced extent of the Hills, as represented in both promotional and scientific literature, no longer accurately reflects...

  17. Intimate Emptiness: The Flint Hills Wind Turbine Controversy

    E-Print Network [OSTI]

    Graham, Howard Russell

    2008-07-28

    wind turbine sites across the state. 21 In 2000, wind research revealed that the ?Sunflower State ranked near the top in the country for wind-energy potential;? 22 in 2001, the Montezuma Project in Gray County, near Dodge City, Kansas? first wind..., and their argument. My first chapter locates the Flint Hills, explains why they are unique, discovers the reason wind developers wanted to site turbines in the Hills, and introduces the wind controversy. I draw on a number of secondary sources to help position...

  18. 2013 strategic petroleum reserve big hill well integrity grading report.

    SciTech Connect (OSTI)

    Lord, David L.; Roberts, Barry L.; Lord, Anna C. Snider; Bettin, Giorgia; Sobolik, Steven Ronald; Park, Byoung Yoon; Rudeen, David Keith; Eldredge, Lisa; Wynn, Karen; Checkai, Dean; Perry, James Thomas

    2014-02-01

    This report summarizes the work performed in developing a framework for the prioritization of cavern access wells for remediation and monitoring at the Big Hill Strategic Petroleum Reserve site. This framework was then applied to all 28 wells at the Big Hill site with each well receiving a grade for remediation and monitoring. Numerous factors affecting well integrity were incorporated into the grading framework including casing survey results, cavern pressure history, results from geomechanical simulations, and site geologic factors. The framework was developed in a way as to be applicable to all four of the Strategic Petroleum Reserve sites.

  19. Wildlife and Wildlife Habitat Loss Assessment at Hills Creek Dam and Reservoir Project, Middle Fork Willamette River, Oregon, 1985 Final Report.

    SciTech Connect (OSTI)

    Noyes, J.H.

    1985-09-01

    A habitat based assessment was conducted of the US Army Corps of Engineers' Hills Creek Dam and Reservoir Project on the Middle Fork Willamette River, Oregon, to determine losses or gains resulting from the development and operation of the hydroelectric related components of the project. Preconstruction, postconstruction, and recent vegetation cover types of the project site were mapped based on aerial photographs from 1944, 1964, and 1979, respectively. Vegetation cover types were identified within the affected area and acreages of each type at each period were determined. Fifteen wildlife target species were selected to represent a cross-section of species groups affected by the project. An interagency team evaluated the suitability of the habitat to support the target species at each time period. An evaluation procedure which accounted for both the quantity and quality of habitat was used to aid in assessing impacts resulting from the project. The Hills Creek Project extensively altered or affected 4662 acres of land and river in the Middle Fork Willamette River drainage. Impacts to wildlife centered around the loss of 2694 acres of old-growth forest and 207 acres of riparian habitat. Impacts resulting from the Hills Creek Project included the loss of winter range for Roosevelt elk, and the loss of year-round habitat for black-tailed deer, black bear, cougar, river otter, beaver, ruffed grouse, spotted owl, and other nongame species. Bald eagle and osprey were benefited by an increase in foraging habitat. The potential of the affected area to support wildlife was greatly altered as a result of the Hills Creek Project, losses or gains in the potential of the habitat to support wildlife will exist over the life of the project.

  20. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Query Processing on GPUs

    E-Print Network [OSTI]

    Ailamaki, Anastassia

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases Query Processing on GPUs The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases CPU vs. GPU CPU (3 GHz) System Memory MB) GPU (690 MHz) 2 x 1 MB Cache The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon

  1. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL1 http://gamma.cs.unc.edu/DAB

    E-Print Network [OSTI]

    Lin, Ming C.

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL1 http://gamma.cs.unc.edu/DAB http of NORTH CAROLINA at CHAPEL HILL2 Digital Painting Alvy Ray Smith and Ed Ernshwiller working on "Paint ·No fading or decay ·No physical limits #12;The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL3

  2. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Query co-Processing on

    E-Print Network [OSTI]

    Ailamaki, Anastassia

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases Query co University of North Carolina at Chapel Hill #12;The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL Superscalar Out-of-order SMT Performance *graph courtesy of Rakesh Kumar #12;The UNIVERSITY of NORTH CAROLINA

  3. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Query co-Processing on

    E-Print Network [OSTI]

    Ailamaki, Anastassia

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases Query co University of North Carolina at Chapel Hill The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Out-of-order SMT Performance *graph courtesy of Rakesh Kumar #12;The UNIVERSITY of NORTH CAROLINA

  4. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Query co-Processing on

    E-Print Network [OSTI]

    Ailamaki, Anastassia

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases Query co University of North Carolina at Chapel Hill The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Out-of-order SMT Performance *graph courtesy of Rakesh Kumar The UNIVERSITY of NORTH CAROLINA

  5. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Query Processing on GPUs

    E-Print Network [OSTI]

    Ailamaki, Anastassia

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases Query Processing on GPUs The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases CPU vs. GPU CPU (3 GHz) System Memory MB) GPU (690 MHz) 2 x 1 MB Cache #12;The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon

  6. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL DiFi: Distance Fields -Fast

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL DiFi: Distance Fields - Fast Computation Using UNIVERSITY of NORTH CAROLINA at CHAPEL HILL Distance Fields Distance Function For a site a scalar function f UNIVERSITY of NORTH CAROLINA at CHAPEL HILL What is a Voronoi Diagram? Given a collection of geometric

  7. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Query co-Processing on

    E-Print Network [OSTI]

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases Query co University of North Carolina at Chapel Hill Stavros Harizopoulos MIT #12;The UNIVERSITY of NORTH CAROLINA of Rakesh Kumar #12;The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases © A. Ailamaki

  8. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Query Processing on GPUs

    E-Print Network [OSTI]

    Ailamaki, Anastassia

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases Query Processing on GPUs UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon Databases CPU vs. GPU CPU (3 GHz) System Memory MB) GPU (690 MHz) 2 x 1 MB Cache #12;The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL@Carnegie Mellon

  9. Lithium in Jack Hills zircons: Evidence for extensive weathering of Earth's earliest crust Takayuki Ushikubo a,

    E-Print Network [OSTI]

    Mcdonough, William F.

    Lithium in Jack Hills zircons: Evidence for extensive weathering of Earth's earliest crust Takayuki Hills lithium weathering continental crust Hadean In situ Li analyses of 4348 to 3362 Ma detrital of REEs. The Jack Hills zircons also have fractionated lithium isotope ratios (7 Li=-19 to+13) about five

  10. Linda Hill, Ph.D.1 Olha Buchel, MLS.1

    E-Print Network [OSTI]

    Janée, Greg

    . The agendas for digital library and classification research in relating to KOS are also proposed. [Keywords DIGITIZING RETRIEVING SEARCHING VISUALIZING KNOWLEDGE ORGANIZATION SYSTEMS AUTHORITY FILES CLASSIFICATION ( ) [] [] Integration of Knowledge Organization Systems into Digital Library Architectures Linda Hill, Ph.D.1 Olha

  11. Penrose Life: ash and oscillators Margaret Hill1

    E-Print Network [OSTI]

    Stepney, Susan

    Penrose Life: ash and oscillators Margaret Hill1 , Susan Stepney1 , and Francis Wan2 1 Department tiling grid. We in- vestigate the lifetime to stability, the final `ash' density, and the number quantitative behaviour, with shorter lifetimes, lower ash densities, and higher ocurrence of long

  12. MARQUAM HILL CAMPUS SW SWGIBBS ST / SAM JACKSON PARK RD

    E-Print Network [OSTI]

    Chapman, Michael S.

    B28 EMC MARQUAM HILL CAMPUS BRB SW SWGIBBS ST / SAM JACKSON PARK RD SW SAM JACKSON PARK RD SW US VETERANS HOSPITAL RD SW GAINES ST SW6THAVE SW CAMPUS DR SWUSVETERANSHOSPITALRD SW CAM PUS DR map: www.ohsu.edu/map From Lake Oswego/Sellwood Bridge area · Travel north on S.W. Macadam Ave. · Turn

  13. Dry Gas Zone, Elk Hills field, Kern County, California: General reservoir study: Engineering text and exhibits: (Final report)

    SciTech Connect (OSTI)

    Not Available

    1988-08-01

    The Dry Gas Zone in the Elk Hills field is comprised of fourteen separate productive horizons deposited in the MYA Group of the San Joaquin Formation of Pliocene Age. Eighty-six separate Reservoir Units have been identified within the interval over an area roughly ten miles long and four miles wide. One basal Tulare sand, the Tulare B, was also included in the geologic study. Five earlier studies have been made of the Dry Gas Zone; each is referenced in the Appendix of this report. Most of these studies were geologic in nature, and none provided in-depth reservoir analyses. This report is made up of ten (10) separate volumes which include: engineering text and exhibits (white dot); engineering data (black dot); geologic text and tables (green dot); structure and isochore maps (light blue dot); structural cross sections (dark blue dot); stratigraphic cross sections (brown dot); geologic data sheets -book 1 (yellow dot); geologic data sheets - book 2 (orange dot); geologic data sheets - book 3 (red dot); and geologic data sheets - book 4 (pink or coral dot). Basic production, injection, pressure, and other assorted technical data were provided by the US Department of Energy engineering staff at Elk Hills. These data were accepted as furnished with no attempt being made at independent verification.

  14. Del Black

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HAB Packet HanfordDOEDanielDe novo Design ofDefects LeadDel Black Del

  15. Combine Hills II | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to:Information9176632°, -76.2521521° ShowNewCombine

  16. Combine Hills Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to:Information9176632°, -76.2521521°

  17. Crofton Hills Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower VenturesInformation EU-UNDP ClimatePublicCriterium

  18. Research and Development Facility at Black Rock Hills Utah for a next

    E-Print Network [OSTI]

    of the sites. 13 km to the west, the US department of Fish and Wildlife operates the Fish Springs Wildlife

  19. High Velocity Refactorings in Eclipse Emerson Murphy-Hill and Andrew P. Black

    E-Print Network [OSTI]

    Robillard, Martin

    up a several-step wizard before finally performing the refactoring. The dominant method-interface is typical of those in other integrated development environments, which have been typically been built difficult because code can be long, complex, or unreadable, so a programmer may waste time trying to make

  20. BIOL 153L General Biology II Lab Black Hills State University Lab 4: Photosynthesis & Respiration II

    E-Print Network [OSTI]

    Ramsey, Justin

    to the movement of water in soil, through the plant body, and into the atmosphere. Transpiration is the process the roots and through the stem. Transpiration is responsible for carrying nutrients through the plant body and also provides evaporative cooling in an analogous manner to sweat in humans and some other animals

  1. Black Hills/Colorado Electric Utility Co. Smart Grid Project | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC JumpBiossence Jump to: navigation, searchBirahi

  2. Energy Extraction from Spinning Black Holes via Relativistic Jets

    E-Print Network [OSTI]

    Ramesh Narayan; Jeffrey E. McClintock; Alexander Tchekhovskoy

    2013-03-12

    It has for long been an article of faith among astrophysicists that black hole spin energy is responsible for powering the relativistic jets seen in accreting black holes. Two recent advances have strengthened the case. First, numerical general relativistic magnetohydrodynamic simulations of accreting spinning black holes show that relativistic jets form spontaneously. In at least some cases, there is unambiguous evidence that much of the jet energy comes from the black hole, not the disk. Second, spin parameters of a number of accreting stellar-mass black holes have been measured. For ballistic jets from these systems, it is found that the radio luminosity of the jet correlates with the spin of the black hole. This suggests a causal relationship between black hole spin and jet power, presumably due to a generalized Penrose process.

  3. Environmental protection and regulatory compliance at the Elk Hills Field

    SciTech Connect (OSTI)

    Chappelle, H.H. (BCM Engineers, Inc., Plymouth Meeting, PA (United States)); Donahoe, R.L. (Bechtel Petroleum Operations, Inc., Tupman, CA (United States)); Kato, T.T. (EG and G Energy Measurements, Inc., Las Vegas, NV (United States)); Ordway, H.E. (Chevron U.S.A., Inc., San Francisco, CA (United States))

    1991-01-01

    Environmental protection has played an integral role in the development and operation of the Elk Hills field since production at the maximum efficient rate was authorized in 1976. The field is located in a non-attainment area for California and National Ambient Air Quality Standards for two criteria pollutants and their associated precursors, is home to four endangered species, and operates within the California regulatory framework. Environmental protection and regulatory compliance is a multi-faceted program carried out through a substantial commitment of resources and workforce involvement. This paper describes the actions taken and resources employed to protect the environment, specific technologies and projects implement, and the ongoing nature of these efforts at Elk Hills.

  4. Environmental protection and regulatory compliance at the Elk Hills Field

    SciTech Connect (OSTI)

    Chappelle, H.H. [BCM Engineers, Inc., Plymouth Meeting, PA (United States); Donahoe, R.L. [Bechtel Petroleum Operations, Inc., Tupman, CA (United States); Kato, T.T. [EG and G Energy Measurements, Inc., Las Vegas, NV (United States); Ordway, H.E. [Chevron U.S.A., Inc., San Francisco, CA (United States)

    1991-12-31

    Environmental protection has played an integral role in the development and operation of the Elk Hills field since production at the maximum efficient rate was authorized in 1976. The field is located in a non-attainment area for California and National Ambient Air Quality Standards for two criteria pollutants and their associated precursors, is home to four endangered species, and operates within the California regulatory framework. Environmental protection and regulatory compliance is a multi-faceted program carried out through a substantial commitment of resources and workforce involvement. This paper describes the actions taken and resources employed to protect the environment, specific technologies and projects implement, and the ongoing nature of these efforts at Elk Hills.

  5. The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill offers a comprehensive benefit package

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill positions. EPA positions are Exempt from the provisions of the State Personnel Act of North Carolina plans are underwritten by the State Health Plan of North Carolina and administered by Blue Cross Blue

  6. Wesley Hills, New York: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia: Energy Resources Jump to:SearchWesley Hills, New York: Energy

  7. Vine Hill, California: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin,Village of Wellington, Ohio (Utility Company)Hill, California:

  8. Sugar Hill, New Hampshire: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing CapacityVectren)Model for the Entire Country |Illinois: EnergyHill, New

  9. Hidden Hills, California: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy Resources Jump to:Hershey, Pennsylvania:Hidden Hills, California: Energy

  10. Druid Hills, Georgia: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (UtilityInstrumentsAreafor Geothermal Resources Rules - IdahoDruid Hills,

  11. Sedco Hills, California: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk,SageScheucoSedco Hills, California: Energy Resources Jump to:

  12. Settlers Hill Gas Recovery Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity for Low Emission Development StrategiesInformationSettlers Hill

  13. Shorewood Hills, Wisconsin: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity for LowInformation NanoTexas:Shiloh,Shoreacres,Shorewood Hills,

  14. Society Hill, New Jersey: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity forSilicium de ProvenceSolarProjectHill, New Jersey: Energy

  15. Marshfield Hills, Massachusetts: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma,InformationIllinois: EnergyWisconsin:Marshfield Hills, Massachusetts:

  16. Liberty Hill, Texas: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill, Texas: Energy Resources Jump to:

  17. Raleigh Hills, Oregon: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergy Marketing Corp Jump to:RajasthanHills, Oregon:

  18. DOE to accept bids for Elk Hills crude

    SciTech Connect (OSTI)

    Not Available

    1992-05-04

    This paper reports that the Department of Energy will accept bids in a reoffering sale covering 53,400 b/d of Elk Hills field oil but later may exercise an option to cut sales volumes and ship 20,000 b/d to Strategic Petroleum Reserve sites in Texas. DOE rejected all 19 bids submitted in an earlier semiannual sale of crude oil from the California naval petroleum reserve, saying they were too low. DOE the, The unique combination of federal and state government policies affecting the movement of oil into and out of the California market has contributed to a situation in which it apparently is very difficult for the government to receive a price for Elk Hills oil that satisfies the minimum price tests that govern the sale of Elk Hills oil. The 12 winning bids in the reoffering sale averaged $13.58/bbl, with bids for the higher quality Stevens zone crude averaging $13.92/bbl, about 67 cents/bbl higher than bids rejected last month. DOE the 20,000 b/d is all local pipelines can ship to the interstate All-American pipeline for transfer to Texas beginning in June.

  19. Water-Gas Sampling At Fenton Hill HDR Geothermal Area (Janik...

    Open Energy Info (EERE)

    Water-Gas Sampling At Fenton Hill HDR Geothermal Area (Janik & Goff, 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water-Gas Sampling At...

  20. DOE Selects CH2M Hill Plateau Remediation Company for Plateau...

    Energy Savers [EERE]

    by CH2M Hill Constructors, Inc. The team also includes AREVA Federal Services, LLC; East Tennessee Materials & Energy Corporation, Inc.; and Fluor Federal Services, Inc. as...

  1. Black Holes and Galaxy Dynamics

    E-Print Network [OSTI]

    David Merritt

    1999-06-02

    The consequences of nuclear black holes for the structure and dynamics of stellar spheroids are reviewed. Slow growth of a black hole in a pre-existing core produces a steep power-law density profile similar to the cusps seen in faint elliptical galaxies. The weaker cusps in bright ellipticals may result from ejection of stars by a coalescing black-hole binary; there is marginal kinematical evidence for such a process having occurred in M87. Stellar orbits in a triaxial nucleus are mostly regular at radii where the gravitational force is dominated by the black hole; however the orbital shapes are not conducive to reinforcing the triaxial figure, hence nuclei are likely to be approximately axisymmetric. In triaxial potentials, a ``zone of chaos'' extends outward to a radius where the enclosed stellar mass is roughly 100 times the mass of the black hole; in this chaotic zone, no regular, box-like orbits exist. At larger radii, the phase space in triaxial potentials is complex, consisting of stochastic orbits as well as regular orbits associated with stable resonances. Figure rotation tends to increase the degree of stochasticity. Both test-particle integrations and N-body simulations suggest that a triaxial galaxy responds globally to the presence of a central mass concentration by evolving toward more axisymmetric shapes; the evolution occurs rapidly when the mass of the central object exceeds roughly 2% of the mass in stars. The lack of significant triaxiality in most early-type galaxies may be a consequence of orbital evolution induced by nuclear black holes.

  2. West Hills, New York: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia: Energy Resources JumpChicago, Illinois:JumpHaverstraw, NewHills,

  3. Turpin Hills, Ohio: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York: Energy Resources Jump to:Georgia:Turpin Hills, Ohio:

  4. Western Shallow Oil Zone, Elk Hills Field, Kern County, California:

    SciTech Connect (OSTI)

    Carey, K.B.

    1987-09-01

    This study, Appendix V, addresses the Gusher Sands and their sub units and pools. Basic pressure, production and assorted technical dta were provided by the US Department of Energy staff at Elk Hills. These data were accepted as furnished with no attempt made by Evans, Carey and Crozier for independent verification. This study has identified the petrophysical properties and the past productive performance of the reservoir. Primary reserves have been determined and general means of enhancing future recovery have been suggested. It is hoped that this volume can now additionally serve as a take off points for exploitation engineers to develop specific programs towards these ends. 16 refs., 9 tabs.

  5. From the hills to the mountain. [Oil recovery in California

    SciTech Connect (OSTI)

    McDonald, J.

    1980-05-01

    The oil reserves at Elk Hills field, California, are listed as amounting to 835 million bbl. There is 12 times that amount lying in shallow sands in the San Joaquin Valley, although the oil is much heavier and requires more refining before use. Improved recovery techniques have enabled higher rates of recovery for heavy oil than in the past. Some of these techniques are described, including bottom-hole heating, steam injection, and oil mining. Bottom-hole heating alone raised recovery rates for heavy oil to 25%, and steam injection raised rates to 50%. It is predicted that oil mining may be able to accomplish 100% recovery of the heavy oil.

  6. Tara Hills, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  7. Harris Hill, New York: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainableGlynnMassachusetts: EnergySoftware IncHarmon,Tennessee: EnergyHarrisHill,

  8. Heritage Hills, New York: Energy Resources | Open Energy Information

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  9. Homa Hills, Wyoming: Energy Resources | Open Energy Information

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  10. Four Hills Nashua Landfill Biomass Facility | Open Energy Information

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  11. Granite Hills, California: Energy Resources | Open Energy Information

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  12. Rolling Hills, California: Energy Resources | Open Energy Information

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  13. Shinnecock Hills, New York: Energy Resources | Open Energy Information

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  14. Spring Hill, Kansas: Energy Resources | Open Energy Information

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  15. Meridian Hills, Indiana: Energy Resources | Open Energy Information

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  16. Morgan Hill, California: Energy Resources | Open Energy Information

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  17. Los Altos Hills, California: Energy Resources | Open Energy Information

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  18. McGinness Hills Geothermal Project | Open Energy Information

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  19. McGraw Hill Construction | Open Energy Information

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  20. Lea Hill, Washington: Energy Resources | Open Energy Information

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  1. Lexington Hills, California: Energy Resources | Open Energy Information

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  2. Jefferson Hills, Pennsylvania: Energy Resources | Open Energy Information

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  3. Quartz Hill, California: Energy Resources | Open Energy Information

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  4. Red Hill, Pennsylvania: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergy MarketingNewOpenRecycled EnergyButte,FeatherHill,

  5. Oak Hills Place, Louisiana: Energy Resources | Open Energy Information

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  6. Palos Hills, Illinois: Energy Resources | Open Energy Information

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  7. Penn Hills, Pennsylvania: Energy Resources | Open Energy Information

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  8. Southern Minnesota Hills Wind Farm | Open Energy Information

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  9. Barrington Hills, Illinois: Energy Resources | Open Energy Information

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  10. Barton Hills, Michigan: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminexInformation Bartholomew County,Creek, Texas: EnergyHills,

  11. Bay Hill, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  12. Campton Hills, Illinois: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village, Arkansas: Energy ResourcesNew York:Campton Hills,

  13. Beverly Hills, Michigan: Energy Resources | Open Energy Information

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  14. Blue Hills, Connecticut: Energy Resources | Open Energy Information

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  15. Braddock Hills, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  16. Brewster Hill, New York: Energy Resources | Open Energy Information

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  17. Bunker Hill Village, Texas: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine: EnergyEnergyOhio: EnergyNorth Dakota:Hill Village, Texas: Energy

  18. Clover Hill, Maryland: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company) JumpIowa: Energy Resources Jump to:NewNewIncHill, Maryland:

  19. Clyde Hill, Washington: Energy Resources | Open Energy Information

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  20. Country Club Hills, Illinois: Energy Resources | Open Energy Information

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  1. Cedar Hills, Oregon: Energy Resources | Open Energy Information

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  2. Cimarron Hills, Colorado: Energy Resources | Open Energy Information

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  3. City of Blue Hill, Nebraska (Utility Company) | Open Energy Information

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  4. City of Hill City, Kansas (Utility Company) | Open Energy Information

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  5. Golden Hills, California: Energy Resources | Open Energy Information

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  6. Hill County Electric Coop, Inc | Open Energy Information

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  7. Hill County, Texas: Energy Resources | Open Energy Information

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  8. Loess Hills Wind Energy Center | Open Energy Information

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  9. Bedford Hills, New York: Energy Resources | Open Energy Information

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  10. WilderHill New Energy Finance LLC | Open Energy Information

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  11. THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL ANNUAL CAMPUS SECURITY REPORT

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL 2014 ANNUAL CAMPUS SECURITY REPORT INCLUDING policies. In accordance with that requirement, The University of North Carolina at Chapel Hill's Office of University Counsel, working with partners across campus, has prepared this report. The University of North

  12. Subsurface Utility Location Standards UNC Chapel Hill Page 1 of 2 May 17, 2013

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    Subsurface Utility Location Standards UNC ­ Chapel Hill Page 1 of 2 May 17, 2013 THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL SUBSURFACE UTILITY LOCATION STANDARDS Created on July 7, 2005 (Updated May 2013) Scope: Perform field location surveys of utilities installed during the construction phase

  13. Connaught Hill Park 37.0 acres (Connaught Drive & Queensway St.)

    E-Print Network [OSTI]

    Northern British Columbia, University of

    CITY PARKS · Connaught Hill Park 37.0 acres (Connaught Drive & Queensway St.) Picnic Site 346.0 acres (Cranbrook Hill Rd.) Hiking Trails (15.0 km), Picnic Shelter and Sites, Viewpoint, Public (Heather Rd. & Austin Rd. West) Ball Diamonds, Soccer Pitch, Washrooms, Elks Centre · Recreation Place 33

  14. 1. Introduction The Ferguson Hill section in New York Canyon has been

    E-Print Network [OSTI]

    McRoberts, Christopher A.

    1. Introduction The Ferguson Hill section in New York Canyon has been well studied.g. Muller & Ferguson, 1939; Taylor et al., 1983, 2000; Guex et al., 1997, 2003a, b; Ward et al., 2007 of the Psiloceras tilmanni group at Ferguson Hill as the defining criteria for the base Hettangian GSSP

  15. Independent Oversight Review, Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance- April 2012

    Office of Energy Efficiency and Renewable Energy (EERE)

    Review of Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance Conduct of Operations

  16. Supermassive Black Holes

    E-Print Network [OSTI]

    Laura Ferrarese; David Merritt

    2002-06-13

    After a brief historical introduction, we summarize current efforts and accomplishments in the study of supermassive black holes.

  17. The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL DiFi: Fast 3D Distance Field Computation

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL DiFi: Fast 3D Distance Field Computation using Graphics Hardware Avneesh Sud, Miguel A. Otaduy and Dinesh Manocha University of North Carolina at Chapel Hill http://gamma.cs.unc.edu/DiFi #12;The UNIVERSITY of NORTH CAROLINA at CHAPEL HILL Distance Field

  18. Magnetized static black Saturn

    E-Print Network [OSTI]

    Stoytcho S. Yazadjiev

    2008-02-06

    We construct a new static solution to the 5D Einstein-Maxwell equations describing a static black hole surrounded by a non-rotating dipole black ring. The configuration is kept in equilibrium by an external magnetic field interacting with the dipole charge of the black ring. The properties of the black Saturn-like configuration are studied and the basic physical quantities are calculated. The solution demonstrates 2-fold continuous non-uniqueness of the 5D magnetized static neutral black objects for fixed total mass and Melvin background.

  19. $?$-tempered metadynamics: Artifact independent convergence times for wide hills

    E-Print Network [OSTI]

    Bradley M. Dickson

    2015-10-26

    Recent analysis of well-tempered metadynamics (WTmetaD) showed that it converges without mollification artifacts in the bias potential. Here we explore how metadynamics heals mollification artifacts, how healing impacts convergence time, and whether alternative temperings may be used to improve efficiency. We introduce "$\\mu$-tempered" metadynamics as a simple tempering scheme, inspired by a related mollified adaptive biasing potential (mABP), that results in artifact independent convergence of the free energy estimate. We use a toy model to examine the role of artifacts in WTmetaD and solvated alanine dipeptide to compare the well-tempered and $\\mu$-tempered frameworks demonstrating fast convergence for hill widths as large as $60^{\\circ}$ for $\\mu$TmetaD.

  20. Western Shallow Oil Zone, Elk Hills Field, Kern County, California:

    SciTech Connect (OSTI)

    Carey, K.B.

    1987-09-01

    The general Reservoir Study of the Western Shallow Oil Zone was prepared by Evans, Carey and Crozier as Task Assignment 009 with the United States Department of Energy. This study, Appendix II addresses the first Wilhelm Sands and its sub unites and pools. Basic pressure, production and assorted technical data were provided by the US Department of Energy staff at Elk Hills. These data were accepted as furnished with no attempt being made by Evans, Carey and Crozier for independent verification. This study has identified the petrophysical properties and the past productive performance of the reservoir. Primary reserves have been determined and general means of enhancing future recovery have been suggested. It is hoped that this volume can now additionally serve as a take off point for exploitation engineers to develop specific programs toward the end.

  1. DOE turns down all bids for Elk Hills crude

    SciTech Connect (OSTI)

    Not Available

    1992-03-30

    This paper reports that the U.S. Department of Energy has rejected all bids submitted in the Mar. 5 semiannual sale of crude oil from Elk Hills Naval Petroleum Reserve (NPR-1) in California. DOE the all 19 bids for the 53,740 b/d of crude were too low. The bids ranged from $11.71 to $14.06/bbl, with the top bids for the highest quality Stevens zone crude averaging $13.25/bbl. California oil companies the they bid what the market would bear, explaining a surplus of Alaskan crude on the West Coast has driven down the price of local crudes, notably heavy crudes. DOE will extend the current oil purchase contracts through April while it issues a new request for bids. It planned to issue the solicitation Mar. 23 and receive bids Apr. 15.

  2. Bicycling Black Rings

    E-Print Network [OSTI]

    Henriette Elvang; Maria J. Rodriguez

    2008-01-25

    We present detailed physics analyses of two different 4+1-dimensional asymptotically flat vacuum black hole solutions with spin in two independent planes: the doubly spinning black ring and the bicycling black ring system ("bi-rings"). The latter is a new solution describing two concentric orthogonal rotating black rings which we construct using the inverse scattering technique. We focus particularly on extremal zero-temperature limits of the solutions. We construct the phase diagram of currently known zero-temperature vacuum black hole solutions with a single event horizon, and discuss the non-uniqueness introduced by more exotic black hole configurations such as bi-rings and multi-ring saturns.

  3. Bicycling Black Rings

    E-Print Network [OSTI]

    Elvang, Henriette

    2008-01-01

    We present detailed physics analyses of two different 4+1-dimensional asymptotically flat vacuum black hole solutions with spin in two independent planes: the doubly spinning black ring and the bicycling black ring system ("bi-rings"). The latter is a new solution describing two concentric orthogonal rotating black rings which we construct using the inverse scattering technique. We focus particularly on extremal zero-temperature limits of the solutions. Such limits exist for both types of solutions; for the bi-rings it is obtained when the two rings drag each other to extremality through the effect of gravitational frame-dragging. We construct the phase diagram of currently known zero-temperature vacuum black hole solutions with a single event horizon, and discuss the non-uniqueness introduced by more exotic black hole configurations such as bi-rings and multi-ring saturns.

  4. Black Diamond Power Co | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLCMichigan: EnergyBixby,BjarnaflagCanyonCo

  5. BLACK HISTORY MONTH

    Broader source: Energy.gov [DOE]

    Black History Month is an annual celebration of achievements by black Americans and a time for recognizing the central role of African Americans in U.S. history. The event grew out of “Negro History Week,” created by historian Carter G. Woodson and other prominent African Americans. Other countries around the world, including Canada and the United Kingdom, also devote a month to celebrating black history.

  6. Measurement of airborne fission products in Chapel Hill, NC, USA from the Fukushima Dai-ichi reactor accident

    E-Print Network [OSTI]

    S. MacMullin; G. K. Giovanetti; M. P. Green; R. Henning; R. Holmes; K. Vorren; J. F. Wilkerson

    2012-10-03

    We present measurements of airborne fission products in Chapel Hill, NC, USA, from 62 days following the March 11, 2011, accident at the Fukushima Dai-ichi nuclear power plant. Airborne particle samples were collected daily in air filters and radio-assayed with two high-purity germanium (HPGe) detectors. The fission products I-131 and Cs-137 were measured with maximum activities of 4.2 +/- 0.6 mBq/m^3 and 0.42 +/- 0.07 mBq/m^3 respectively. Additional activity from I-131, I-132, Cs-134, Cs-136, Cs-137 and Te-132 were measured in the same air filters using a low-background HPGe detector at the Kimballton Underground Research Facility (KURF).

  7. Accreting Black Holes

    E-Print Network [OSTI]

    Begelman, Mitchell C

    2014-01-01

    I outline the theory of accretion onto black holes, and its application to observed phenomena such as X-ray binaries, active galactic nuclei, tidal disruption events, and gamma-ray bursts. The dynamics as well as radiative signatures of black hole accretion depend on interactions between the relatively simple black-hole spacetime and complex radiation, plasma and magnetohydrodynamical processes in the surrounding gas. I will show how transient accretion processes could provide clues to these interactions. Larger global magnetohydrodynamic simulations as well as simulations incorporating plasma microphysics and full radiation hydrodynamics will be needed to unravel some of the current mysteries of black hole accretion.

  8. Intern experience at CH?M Hill, Inc.: an internship report 

    E-Print Network [OSTI]

    Winter, William John, 1949-

    2013-03-13

    (standards) imposed upon the mill by the State of Washington Department of Ecology and the U.S. Environmental Protection Agency. The author's assignment also entailed necessary interaction with the project manager and other CH?M HILL design...

  9. Microsoft Word - CH1311-11 CH2M HILL Awards $1B to Small Businesses

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

    price. Since receiving the contract in 2008, CH2M HILL awarded more than 1 billion in contracts to small businesses, representing 28 percent of the contract price to-date. Of...

  10. Joint DOE-CH2M HILL News Release Media Contact: For Immediate...

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

    price. Since receiving the contract in 2008, CH2M HILL awarded more than 1 billion in contracts to small businesses, representing 28 percent of the contract price to date....

  11. Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry...

    Open Energy Info (EERE)

    Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry Rock Geothermal Systems I. Fluid Mixing and Chemical Geothermometry Jump to: navigation, search OpenEI Reference...

  12. ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase...

    Open Energy Info (EERE)

    ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase II HDR Reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: ICFT- An Initial...

  13. Water-Gas Samples At Fenton Hill Hdr Geothermal Area (Goff &...

    Open Energy Info (EERE)

    Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Water-Gas Samples At Fenton Hill Hdr Geothermal Area (Goff & Janik, 2002) Redirect page Jump to:...

  14. Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind...

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

    Liberty Mint and Blitzburgh Crunch sold from Vermont to Florida, Turkey Hill Dairy is the fourth largest producer of ice cream in the United States. Now, nearly a quarter of the...

  15. Case Study Walnut Hill United Methodist Church - Dallas, Texas, Chiller Replacement Analysis 

    E-Print Network [OSTI]

    Phillips, J.

    1998-01-01

    In March of 1992 Walnut Hill United Methodist Church in Dallas, Tx. decided that their existing thermal storage and electric reciprocating chiller system were both in need of replacement. After analyzing several options, they chose to install 150...

  16. Restructuring the urban neighborhood : the dialogue between image and ideology in Phoenix Hill, Louisville, Kentucky

    E-Print Network [OSTI]

    Isaacs, Mark Andrew

    1980-01-01

    This thesis addresses the problems of restructuring the urban neighborhood as specifically applied to the Phoenix Hill community in Louisville, Kentucky. Theory and concepts are briefly presented as a basis for design ...

  17. Hadean-Archean transitions: Constraints from the Jack Hills detrital zircon record

    E-Print Network [OSTI]

    Bell, Elizabeth Ann

    2013-01-01

    Sr, Sm-Nd and Pb-Pb geochronology of ancient gneisses from1991. SHRIMP U-Pb zircon geochronology of the Narryer GneissAmelin, Y.V. , 1998. Geochronology of the Jack Hills

  18. University of the West Indies Cave Hill Campus, P.O. Boa: 64

    E-Print Network [OSTI]

    University of the West Indies Cave Hill Campus, P.O. Boa: 64 Barbados. West Indies Bellairs Resea previously (Fbr- ward 1974) in a Sherer! environmental chamber (Model CEL-44) on a 14:10 LD cycle

  19. 2004 Universities Federation for Animal Welfare The Old School, Brewhouse Hill, Wheathampstead,

    E-Print Network [OSTI]

    Indiana University

    S115 © 2004 Universities Federation for Animal Welfare The Old School, Brewhouse Hill by animals in choice tests and improvements in welfare is not straightfor- ward. A range of different

  20. Los Alamos National Laboratory Investigates Fenton Hill to Support Future Land Use

    Broader source: Energy.gov [DOE]

    LOS ALAMOS, N.M. – Supporting future land use for the U.S. Forest Service, Los Alamos National Laboratory’s Corrective Actions Program (CAP) completed sampling soil at Fenton Hill in the Jemez Mountains this month.

  1. Chaos anti-synchronization in multiple time delay power systems

    E-Print Network [OSTI]

    Elman Shahverdiev

    2015-09-20

    We elucidate conditions for chaos anti-synchronization between two uni-directionally coupled multiple time delay power systems. The results are of some importance to prevent power black-out in the entire power grid.

  2. Rotating Hairy Black Holes

    E-Print Network [OSTI]

    B. Kleihaus; J. Kunz

    2000-12-20

    We construct stationary black holes in SU(2) Einstein-Yang-Mills theory, which carry angular momentum and electric charge. Possessing non-trivial non-abelian magnetic fields outside their regular event horizon, they represent non-perturbative rotating hairy black holes.

  3. Improved oil recovery using horizontal wells at Elk Hills, California

    SciTech Connect (OSTI)

    Gangle, F.J.; Schultz, K.L.; McJannet, G.S.; Ezekwe, N.

    1995-03-01

    Eight horizontal wells have been drilled and completed in a steeply dipping Stevens sand reservoir in the Elk Hills field, Kern County, California. The subject reservoir, called the Stevens 26R, is a turbidite channel sand deposit one mile wide, three miles long, and one mile deep. Formation beds have a gross thickness up to 1,500 feet and dips as high as 60 degrees on the flanks. The original oil column of 1,810 feet has been pulled down to 200 feet by continual production since 1976. The reservoir management operating strategy has been full pressure maintenance by crestal gas injection since 1976. The steep dip of the formation makes gravity drainage the dominant drive mechanism. Additionally, improved recovery is coming from cycling dry gas through the large secondary gas cap region. The prudent placement of the horizontal wells above the oil/water contact promises to improve oil recovery and extend the operating life of the reservoir. Field results are given to compare the performance of the horizontal wells with the conventional wells. The horizontal wells produce at higher rates, lower draw downs, and lower gas/oil ratio which will extend the life of the project and result in higher recovery.

  4. Horizontal wells improve recovery at the Elk Hills Petroleum Reserve

    SciTech Connect (OSTI)

    Rintoul, B.

    1995-11-01

    In 1988 the US Department of Energy and Bechtel implemented a program to slow production declines in the Elk Hills 26R pool sand of the Naval Petroleum Reserve No. 1. It was also hoped horizontal wells would increase the production rate, decrease gas production and extend economic life of the reservoir. The Stevens sand pool targeted for the project is a high-quality, sand-rich turbidite channel system encapsulated within Miocene Monterey siliceous shales, mudstones and associated sediments. The pool is about 3-miles long by 3/4-mile wide. The paper describes the specifications and drilling of the first four out of the 14 horizontal wells drilled at this facility. Horizontal drilling technology has completely altered the future of the 26R pool. In 1980 estimated ultimate recovery (EUR) from the sand was 211 million bbl. With the latest horizontal well drilling campaign, the pool is expected to pass that estimate in 1997 when oil production is forecasted to be at least 13,000 b/d. EUR form the 26R sand now is more than 250 million bbl, and even that estimate is being revised upward.

  5. "Hybrid" Black Holes

    E-Print Network [OSTI]

    Valeri P. Frolov; Andrei V. Frolov

    2014-12-30

    We discuss a solution of the Einstein equations, obtained by gluing the external Kerr metric and the internal Weyl metric, describing an axisymmetric static vacuum distorted black hole. These metrics are glued at the null surfaces representing their horizons. For this purpose we use the formalism of massive thin null shells. The corresponding solution is called a "hybrid" black hole. The massive null shell has an angular momentum which is the origin of the rotation of the external Kerr spacetime. At the same time, the shell distorts the geometry inside the horizon. The inner geometry of the "hybrid" black hole coincides with the geometry of the interior of a non-rotating Weyl-distorted black hole. Properties of the "hybrid" black holes are briefly discussed.

  6. Designing and Managing Datacenters Powered by Renewable Energy

    E-Print Network [OSTI]

    societal demand for cleaner products and services, several companies have announced plans to build "green" datacenters, i.e. datacenters partially or completely powered by renewables such as solar or wind energy an existing nearby plant (co-location). For example, Apple and McGraw-Hill have built large solar arrays

  7. Course Outline Engineer 2MM3 Electrical Circuits & Power

    E-Print Network [OSTI]

    Haykin, Simon

    .ece.mcmaster.ca/~mrhowlader/2mm3/notes.htm Text Book: S.J. Chapman, Electric Machinery Fundamentals, McGraw Hill, Fifth Edition Course Description: Fundamentals of electromechanical energy conversion. Motors and generators. Fundamentals of Magnetic Circuits; 2. Fundamentals of Electrical Circuits, Phasors; 3. Power in AC Circuits; 4

  8. Dry gas zone, Elk Hills Field, Kern County, California: General reservoir study: Engineering data, effective August 1, 1988

    SciTech Connect (OSTI)

    Not Available

    1989-01-10

    This reservoir study of the dry gas zone of Elk Hills Field is a data compilation with information relating to well: completion; production; pressure; and back pressure. (JF)

  9. PURDUE UNIVERSITY BLACK CULTURAL CENTER

    E-Print Network [OSTI]

    Pittendrigh, Barry

    traveled to Detroit, Michigan to study our fall research theme, " Black Detroit: The History, Movement

  10. Black Holes and Galaxy Evolution

    E-Print Network [OSTI]

    David Merritt

    1999-10-29

    Supermassive binary black holes and their influence on the structure and evolution of galaxies is reviewed.

  11. Development Wells At Fenton Hill HDR Geothermal Area (Dreesen...

    Open Energy Info (EERE)

    required to support a commercial power plant. Initial attempts to connect the two wells by hydraulic pressure-stimulation in 1982 were unsuccessful. Efforts to produce a...

  12. 2008 Wind Energy Projects, Wind Powering America (Poster)

    SciTech Connect (OSTI)

    Not Available

    2009-01-01

    The Wind Powering America program produces a poster at the end of every calendar year that depicts new U.S. wind energy projects. The 2008 poster includes the following projects: Stetson Wind Farm in Maine; Dutch Hill Wind Farm in New York; Grand Ridge Wind Energy Center in Illinois; Hooper Bay, Alaska; Forestburg, South Dakota; Elbow Creek Wind Project in Texas; Glacier Wind Farm in Montana; Wray, Colorado; Smoky Hills Wind Farm in Kansas; Forbes Park Wind Project in Massachusetts; Spanish Fork, Utah; Goodland Wind Farm in Indiana; and the Tatanka Wind Energy Project on the border of North Dakota and South Dakota.

  13. Science on the Hill: Driving toward an algae-powered future

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque| StanfordOffice of Science (SC) SULIPhysicsJanuary »on the

  14. DOE to ship 20,000 b/d of Elk Hills oil to SPR

    SciTech Connect (OSTI)

    Not Available

    1992-05-11

    This paper reports that the U.S. department of Energy has decided to ship 20,000 b/d of its Elk Hills field production in California to the Strategic Petroleum Reserve on the Gulf Coast. DOE says prices are too low to sell the high quality Elk Hills Stevens zone oil on the California market. It had warned local buyers it might divert the oil to the Gulf Coast. It says shipping the Elk Hills crude to the SPR site at Big Hill, Tex., will save $2/bbl under the price of comparable crude delivered there for storage in the SPR. Pipeline shipments are to begin June 1 and continue for 4 months, totaling about 2.4 million bbl. DOE may or may not continue the shipments, depending on results of the semiannual Elk Hills crude oil sale in September. Reductions in the existing 12 sales contracts will be prorated among buyers. The 20,000 b/d volume is the most that can be shipped from the West Coast to the Gulf Coast through available pipelines.

  15. Wind Power

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

    Wind Power Bioenergy Power Systems Wind Power Wind Power Main Page Outreach Programs Image Gallery FAQs Links Software Hydro Power INL Home Wind Power Introduction The Wind Power...

  16. Dynamometer measurements of torque, rpm and power Velocity measurements with 3 synchronized acoustic

    E-Print Network [OSTI]

    Siefert, Chris

    and TurbulenceMethods Results ­ Spectra Plots Energy-Water-Ecosystems Engineering Wind and water Power. E. Email: nearyvs@ornl.gov http://www.esd.ornl.gov/WindWaterPower/ 1Point of Contact Experimental.P. Chamorro2, C. Hill2, B. Gunawan1, F. Sotiropoulos2 1Energy-Water-Ecosystems Engineering, Wind and Water

  17. A connection between plasma conditions near black hole event horizons and outflow properties

    E-Print Network [OSTI]

    Koljonen, K I I; Ontiveros, J A Fernández; Markoff, S; Russell, T D; Miller-Jones, J C A; van der Horst, A J; Bernardini, F; Casella, P; Curran, P A; Gandhi, P; Soria, R

    2015-01-01

    Accreting black holes are responsible for producing the fastest, most powerful outflows of matter in the Universe. The formation process of powerful jets close to black holes is poorly understood, and the conditions leading to jet formation are currently hotly debated. In this paper, we report an unambiguous empirical correlation between the properties of the plasma close to the black hole and the particle acceleration properties within jets launched from the central regions of accreting stellar-mass and supermassive black holes. In these sources the emission of the plasma near the black hole is characterized by a power law at X-ray energies during times when the jets are produced. We find that the photon index of this power law, which gives information on the underlying particle distribution, correlates with the characteristic break frequency in the jet spectrum, which is dependent on magnetohydrodynamical processes in the outflow. The observed range in break frequencies varies by five orders of magnitude, i...

  18. Gravitational wave production by rotating primordial black holes

    E-Print Network [OSTI]

    Dong, Ruifeng; Stojkovic, Dejan

    2015-01-01

    In this paper we analyze in detail a rarely discussed question of gravity waves production from evaporating black holes. Evaporating black holes emit gravitons which are at classical level registered as gravity waves. We use the latest constraints on the primordial black hole abundance, and calculate the power emitted in gravitons at the time of their evaporation. We then solve the coupled system of equations that gives us the evolution of the frequency and amplitude of gravity waves during the expansion of the universe. The spectrum of gravitational waves that can be detected today depends on multiple factors: fraction of the total energy density which was occupied by black holes, the epoch in which the black holes are formed, and quantities like mass and angular momentum of evaporating black holes. We conclude that very small primordial black holes which evaporate before the nucleosynthesis emit gravitons whose spectral energy fraction today can be as large as $10^{-5}$. On the other hand, primordial black ...

  19. U.S. strategic petroleum reserve Big Hill 114 leak analysis 2012.

    SciTech Connect (OSTI)

    Lord, David L.; Roberts, Barry L.; Lord, Anna C. Snider; Sobolik, Steven Ronald; Park, Byoung Yoon; Rudeen, David Keith [GRAM, Inc., Albuquerque, NM

    2013-06-01

    This report addresses recent well integrity issues related to cavern 114 at the Big Hill Strategic Petroleum Reserve site. DM Petroleum Operations, M&O contractor for the U.S. Strategic Petroleum Reserve, recognized an apparent leak in Big Hill cavern well 114A in late summer, 2012, and provided written notice to the State of Texas as required by law. DM has since isolated the leak in well A with a temporary plug, and is planning on remediating both 114 A- and B-wells with liners. In this report Sandia provides an analysis of the apparent leak that includes: (i) estimated leak volume, (ii) recommendation for operating pressure to maintain in the cavern between temporary and permanent fixes for the well integrity issues, and (iii) identification of other caverns or wells at Big Hill that should be monitored closely in light of the sequence of failures there in the last several years.

  20. Elk Hills endangered and threatened species program: Phase 1 progress summary

    SciTech Connect (OSTI)

    O'Farrell, T.P.

    1980-03-01

    The endangered San Joaquin kit fox, Vulpes macrotis mutica, and bluntnosed leopard lizard, Crotaphytus silus, are known to occur on the Elk Hills Naval Petroleum Reserve, NPR-1. An integrated, multiphased field program was designed to gather, synthesize, and interpret ecological information necessary for Biological Assessments required by the Secretary of Interior. These assessments will be used as the basis for a formal consultation with the Department of Interior to determine whether DOE activities on Elk Hills are compatible with the continued existence of the two species. Transects totalling 840 km were walked through all sections of Elk Hills to determine: (1) the presence and relative densities of endangered or threatened species; (2) past and potential impacts of NPR-1 activities on endangered and threatened species; and (3) the potential application of remote sensing for gathering necessary data.

  1. Forestry and Farming System In the Mid-Hills of Nepal

    E-Print Network [OSTI]

    Upadhyay, Kiran Dutta

    1993-01-01

    material to provide food for the huusehold members, heafs, kids to the farming hou;ehold and also dung for composting and recycling, and of income to the far­ ming households Earlier than 1950's sufficient areas of pasture and forest were available... -Hills has been converted into bush land. Trees are overcut, lopped and forest IIoor is overgrazed. The situation is, in fact, worse than what available figures suggest, because many areas of the Hills, now classified under forest, are in fact degraded waste...

  2. Influence of Drought Conditions on Brown Trout Biomass and Size Structure in the Black Hills, South Dakota

    E-Print Network [OSTI]

    of pool habitat can limit the carrying capacity for adult fish (Elliot 1987; Hakala and Hartman 2004). Elliot (2000) found that temperature increased and oxygen decreased as pool size decreased during drought pools during nondrought years (Elliot 2000). The survival of brown trout can be affected by drought

  3. ASSESSING AMERICAN MARTEN USE OF TRACK-PLATE BOX SURVEYS FOR ESTIMATING POPULATION SIZE IN THE BLACK HILLS OF SOUTH

    E-Print Network [OSTI]

    and Parks Department, thanks as well, John Wrede, Steve Griffin, and Blaire Waite especially. Blair, thanks as well. #12;iv Thanks to Braden Burkholder for your assistance with marten captures, track- plate surveys, and digging my grill out of 5 ft. of snow in Lead. To my brother Buddy: thank you for the countless days you

  4. BIOL 153L General Biology II Lab Black Hills State University Lab 9: Plant Roots, Leaves, & Fruits

    E-Print Network [OSTI]

    Ramsey, Justin

    , and cooling via transpiration. · Flowers are the reproductive structures, composed of four floral whorls

  5. BIOL 153L General Biology II Lab Black Hills State University Lab 12: Campus Tree Tour & Grocery Store Botany

    E-Print Network [OSTI]

    Ramsey, Justin

    rise to an aggregate fruit. Strawberry (Fragaria): Pick up a strawberry from the front of the room). Strawberry flowers have multiple unfused pistils which mature into multiple achenes. The receptacle grows as the fruit ripens, and the achenes wind up stuck to its surface. Sketch a strawberry. Label the pedicel

  6. Geology and uranium resources in Precambrian conglomerates of the Nemo area, Black Hills, South Dakota. Final report

    SciTech Connect (OSTI)

    Redden, J.A.

    1980-05-01

    The detailed work at a 1:3000 scale was done using a generalized grid system. Surface radioactive surveys used a GAD-6 spectrometer. Magnetometer surveys were also made of the Tomahawk, Steamboat Rock, Little Elk, and Greenwood areas in order to confirm the geologic interpretations. The drill core was logged, all radioactive or pebble-bearing intervals split and ground, and samples prepared for analysis by the writer, L. Alstead, and J. D. Kim. Chemical analyses were largely by neutron activation methods and were done in the Uranium Resource Evaluation Laboratory, Union Carbide Corporation, Oak Ridge, Tennessee. Personnel from that laboratory also prepared statistical data on the chemical analyses. Samples were also collected for mineralogic studies using thin sections, heavy mineral separates, and polished plates for use with the NEC energy dispersive x-ray spectroscopy system and electron probe. Some samples of pyritiferous conglomerate were successfully disaggregated using a hydrofluoric acid bath. Zircon concentrates were prepared using heavy liquids and repeated magnetic separation. Drill hole K, U, and Th logs of the different holes were made by Bendix Field Engineering Corporation personnel but due to instrument malfunction, the logs were not interpretable. Scintillation counter logs of the drill core were made during the lithologic logging.

  7. Power Plant Power Plant

    E-Print Network [OSTI]

    Stillwater Power Plant Wabuska Power Plant Casa Diablo Power Plant Glass Mountain Geothermal Area Lassen Geothermal Area Coso Hot Springs Power Plants Lake City Geothermal Area Thermo Geothermal Area Lakeview Geothermal Area Raft River Geothermal Area Cove Fort Power Plant Roosevelt Power Plant Borax Lake

  8. BIOGRAPHICAL SKETCH OF MARK E. LUTHER Education: University of North Carolina at Chapel Hill, A.B., Mathematics and Physics, 1976;

    E-Print Network [OSTI]

    Meyers, Steven D.

    BIOGRAPHICAL SKETCH OF MARK E. LUTHER Education: University of North Carolina at Chapel Hill, A.B., Mathematics and Physics, 1976; University of North Carolina at Chapel Hill, M.S., Physical Oceanography, 1980; University of North Carolina at Chapel Hill, Ph.D., Physical Oceanography, 1982 Professional Background

  9. Reproduction of the San Joaquin kit fox on Naval Petroleum Reserve No. 1, Elk Hills, California: 1980-1985

    SciTech Connect (OSTI)

    Zoellick, B.W.; O'Farrell, T.P.; McCue, P.M.; Harris, C.E.; Kato, T.T.

    1987-01-01

    Reproduction of the San Joaquin kit fox (Vulpes macrotis mutica) was studied in areas of petroleum development and areas relatively undisturbed by development on and adjacent to Elk Hills Naval Petroleum Reserve No. 1 (NPR-1), California from 1980-1985. Pregnancy rates of adults did not differ between habitats (93 to 100%), but the yearling pregnancy rate in developed habitat (56%) was lower than the adult rates and the yearling rate for undeveloped habitat (100%). Mean corpora lutea and placental scar counts did not differ between undeveloped and developed habitats, but adults had greater corpora lutea and placental scar counts than yearlings. Litter sizes averaged 4.1 and 4.4 for undeveloped and developed habitats respectively from 1980-1985 and did not differ between years or habitats. Mean number of litters observed per square mile during 1980-1985 did not differ between undeveloped (0.34) and developed habitats (0.29). The percentage of all females successfully raising pups in developed habitat declined significantly from 1980-1985 in comparison with the percent success of females in undeveloped habitat. Numbers of litters per square mile in developed habitat also declined significantly after 1981. The sex ratio of pups trapped in developed habitat was skewed towards males during the decline in litters produced per square mile from 1982-1985, but the ratio of males to females in undeveloped habitat did not differ from 1:1 during this time. The decline in some measures of reproductive success in developed habitat after 1981 coincided with a decrease in black-tailed jackrabbit and desert cottontail numbers on the NPR-1 study area. The decreased reproductive success of foxes in developed habitat after 1981 may have resulted from habitat degradation caused by oil field production activities, declining lagomorph numbers, or other unknown causes. 49 refs., 7 figs., 8 tabs.

  10. The renaissance of black phosphorus

    E-Print Network [OSTI]

    Ling, Xi

    One hundred years after its first successful synthesis in the bulk form in 1914, black phosphorus (black P) was recently rediscovered from the perspective of a 2D layered material, attracting tremendous interest from ...

  11. VBA-0033- In the Matter of Kaiser-Hill Company, L.L.C.

    Broader source: Energy.gov [DOE]

    On August 26 and 27, 1999, Kaiser-Hill Company, L.L.C. (K-H) and EG&G Rocky Flats, Inc. (EG&G) respectively filed Notices of Appeal from an Initial Agency Decision by a Hearing Officer from...

  12. The Alexandria Digital Library Project: Metadata Development and Linda L. Hill and Greg Jane

    E-Print Network [OSTI]

    Janée, Greg

    The Alexandria Digital Library Project: Metadata Development and Use Linda L. Hill and Greg Janée lhill@alexandria.ucsb.edu and gjanee@alexandria.ucsb.edu Alexandria Digital Library Project University of California, Santa Barbara Introduction The Alexandria Digital Library (ADL) Project has the unique advantage

  13. UNC-Chapel Hill, COMP 145 Team 18:The Kalman Filter Learning Tool

    E-Print Network [OSTI]

    Welch, Greg

    the modeled (Kalman filter) formulations. 1.1.1 Constant In this case, the water level does not change) the discrete time process noise matrix is (5) where , for the full water level . The filter update equationsUNC-Chapel Hill, COMP 145 Team 18:The Kalman Filter Learning Tool Dynamic and Measurement Models

  14. Test-Taking Strategies compiled by Sheila Kannappan, UNC Chapel Hill Physics & Astronomy

    E-Print Network [OSTI]

    Kannappan, Sheila

    Test-Taking Strategies compiled by Sheila Kannappan, UNC Chapel Hill Physics & Astronomy General* immediately before the test. 3. Know the rubric/grading style of your grader as well as the relative importance of the test. 4. Read all problems and go for the easiest ones first (based on ALL parts). 5. Watch

  15. Page 1 of 5 The University of North Carolina at Chapel Hill

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    Page 1 of 5 The University of North Carolina at Chapel Hill Residence Status Supplemental Form for the Marital Provision Under North Carolina law, married persons are neither favored nor disadvantaged by being provision that allows an applicant who marries a North Carolina legal resident and who becomes domiciled

  16. RSC DECISION THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AO DECISION

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    RSC DECISION THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AO DECISION Application for Residence North Carolina law, bona fide legal residents (domiciliaries) of North Carolina are eligible for a lower are available for inspection in admissions offices. North Carolina statute (G.S. 116-143) requires: "To qualify

  17. Page 1 of 4 The University of North Carolina at Chapel Hill

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    Page 1 of 4 The University of North Carolina at Chapel Hill Residence Status Supplemental Form) they are stationed in North Carolina for active duty military service or live with a service member who is stationed in North Carolina for active duty military service, or (2) they are residents of North Carolina but have

  18. Page 1 of 4 The University of North Carolina at Chapel Hill

    E-Print Network [OSTI]

    McLaughlin, Richard M.

    Page 1 of 4 The University of North Carolina at Chapel Hill Residence Status Supplemental Form). For the tuition waiver to apply, the deceased or disabled law enforcement/emergency worker must have been a North Carolina legal resident at the time of death or injury. Furthermore, disabled law enforcement

  19. Dating of Sand Dunes Using Cosmogenic Chlorine-36: An Example From the Nebraska Sand Hills, USA

    E-Print Network [OSTI]

    Zreda, Marek

    Dating of Sand Dunes Using Cosmogenic Chlorine-36: An Example From the Nebraska Sand Hills, USA Stephen Moysey, Marek Zreda and Jim Goeke The large-scale mobility of sand dunes in continental dune of the history of a dune field can therefore, provide a proxy climate record derived from the continental plains

  20. Testing the Hill model of transpolar potential with Super Dual Auroral Radar Network observations

    E-Print Network [OSTI]

    Shepherd, Simon

    as a function of solar wind speed and ram pressure, the interplanetary magnetic field, the reconnection electric electric potential and is an important indicator of the amount of energy flowing into and throughTesting the Hill model of transpolar potential with Super Dual Auroral Radar Network observations S

  1. Software Tamper Resistance: Obstructing Static Analysis of Chenxi Wang, Jonathan Hill, John Knight, Jack Davidson

    E-Print Network [OSTI]

    Huang, Wei

    1 Software Tamper Resistance: Obstructing Static Analysis of Programs Chenxi Wang, Jonathan Hill this represents a significant hurdle for code optimization, it provides a theoretical basis for structuring tamper if the decryption process takes place on the same host. What is needed, in this case, is tamper resistant software

  2. A Socioeconomic Profile of the Poters in the Central Mid-Hills of Nepal

    E-Print Network [OSTI]

    Upadhyay, Kiran Dutta

    1990-01-01

    size of such holdings is less than 0 5 ha. While the hills and mountains support 65 percent of Ute total . population of Nepal. they consist only 43 percent of Ute cultivated land. This comes of an average of 0.12 ha. per person (CBS 1987:vtl­ Ix). lnc.eas...

  3. Highway 280 North or South Take the Sand Hill Road exit, head east

    E-Print Network [OSTI]

    Ford, James

    Highway 280 North or South · Take the Sand Hill Road exit, head east · Turn right on Stock Farm for "all" below From Bayshore US Highway 101 NorthFrom Bayshore US Highway 101 North or South · Take · Turn left on Stock Farm Road LKSC ParkingTurn left on Stock Farm Road · Make the next lefthand turn

  4. Particle Swarm Optimization Approach with Parameter-wise Hill-climbing Heuristic for Task

    E-Print Network [OSTI]

    Ludwig, Simone

    addressed the task allocation problem made use of Particle Swarm Optimization (PSO). This paper further improves the performance of PSO by combining PSO with a local search heuristic. In particular, PSO with a parameter-wise hill-climbing heuristic (PSO-HC) for the execution of computationally-intensive as well as I

  5. Hill Climbing Algorithms for Content-Based Retrieval of Similar Configurations

    E-Print Network [OSTI]

    Papadias, Dimitris

    Hill Climbing Algorithms for Content-Based Retrieval of Similar Configurations Dimitris Papadias Department of Computer Science Hong Kong University of Science and Technology Clear Water Bay, Hong Kong +852 is an important form of content-based retrieval. Exhaustive processing (i.e., retrieval of the best solutions

  6. Extending clp(FD) by Negative Constraint Solving Antonio J. Fern andez and Patricia M. Hill

    E-Print Network [OSTI]

    Hill, Patricia

    and new methods for their propagation. Keywords: Constraint Solving, Constraint Propagation, Labeling several processes: constraint propagation, consistency checks, and labeling (also called enumeration is with School of Computer Studies,University of Leeds, England. Email: hill@scs.leeds.ac.uk This work was partly

  7. The No-Boundary Probability for the Universe starting at the top of the hill

    E-Print Network [OSTI]

    Tim Clunan

    2007-04-16

    We use the Hartle-Hawking No-Boundary Proposal to make a comparison between the probabilities of the universe starting near, and at, the top of a hill in the effective potential. In the context of top-down cosmology, our calculation finds that the universe doesn't start at the top.

  8. The mass function of high redshift seed black holes

    E-Print Network [OSTI]

    Giuseppe Lodato; Priyamvada Natarajan

    2007-02-13

    In this paper we derive the mass function of seed black holes that result from the central mass concentrated via disc accretion in collapsed haloes at redshift $z\\approx 15$. Using standard arguments including stability, we show that these pre-galactic discs can assemble a significant mass concentration in the inner regions, providing fuel for the formation and initial growth of super-massive black holes. Assuming that these mass concentrations do result in central seed black holes, we determine the mass distribution of these seeds as a function of key halo properties. The seed mass distribution determined here turns out to be asymmetric and skewed to higher masses. Starting with these initial seeds, building up to $10^9$ solar masses by $z = 6$ to power the bright quasars is not a problem in the standard LCDM cosmogony. These seed black holes in gas rich environments are likely to grow into the supermassive black holes at later times via mergers and accretion. Gas accretion onto these seeds at high redshift will produce miniquasars that likely play an important role in the reionization of the Universe. Some of these seed black holes on the other hand could be wandering in galaxy haloes as a consequence of frequent mergers, powering the off-nuclear ultra-luminous X-ray sources detected in nearby galaxies.

  9. Black Holes And Their Entropy 

    E-Print Network [OSTI]

    Mei, Jianwei

    2010-10-12

    . . . . . . . . . 21 1. Solutions in Four Dimensions . . . . . . . . . . . . . . 22 2. Solutions in Higher Dimensions . . . . . . . . . . . . . 27 C. Black Hole Solutions in Supergravity Theories . . . . . . . 30 D. Plebanski-Demianski Type Solutions in d = 5... is to discuss the construction of new black hole solutions and the calculation of the black hole entropy. In Chapter II, we shall re- port some new black hole solutions that we have found during the past few years [21, 22, 23] and we will discuss some...

  10. Numerical Simulations Reveal the Origin of QPOs in Black Hole Candidates

    E-Print Network [OSTI]

    Sandip K. Chakrabarti

    2005-01-14

    We present results of various types of numerical simulations of black hole accretion disks and find that those flows which are relatively non-dissipative and which contain accretion shocks are the best candidates so far. The power density spectra (PDS) reveal the aspects which are similar to what are observed in black hole candidates.

  11. Black Holes at Accelerators

    E-Print Network [OSTI]

    Bryan Webber

    2006-04-06

    In theories with large extra dimensions and TeV-scale gravity, black holes are copiously produced in particle collisions at energies well above the Planck scale. I briefly review some recent work on the phenomenology of this process, with emphasis on theoretical uncertainties and possible strategies for measuring the number of extra dimensions.

  12. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, Arthur L. (Woodland Hills, CA)

    1987-07-28

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediatley above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone.

  13. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, A.L.

    1987-07-28

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediately above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone. 2 figs.

  14. Coal Power Plant Database | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, searchClover Hill HighPower Plant Database

  15. Statistical Mechanics of Black Holes

    E-Print Network [OSTI]

    B. Harms; Y. Leblanc

    1992-05-11

    We analyze the statistical mechanics of a gas of neutral and charged black holes. The microcanonical ensemble is the only possible approach to this system, and the equilibrium configuration is the one for which most of the energy is carried by a single black hole. Schwarzschild black holes are found to obey the statistical bootstrap condition. In all cases, the microcanonical temperature is identical to the Hawking temperature of the most massive black hole in the gas. U(1) charges in general break the bootstrap property. The problems of black hole decay and of quantum coherence are also addressed.

  16. MHK Technologies/Davidson Hill Venturi DHV Turbine | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma,Information MHKMHK5 < MHKKembla <Canal Power <

  17. Energy extraction from boosted black holes: Penrose process, jets, and the membrane at infinity

    E-Print Network [OSTI]

    Robert F. Penna

    2015-04-15

    Numerical simulations indicate that black holes carrying linear momentum and/or orbital momentum can power jets. The jets extract the kinetic energy stored in the black hole's motion. This could provide an important electromagnetic counterpart to gravitational wave searches. We develop the theory underlying these jets. In particular, we derive the analogues of the Penrose process and the Blandford-Znajek jet power prediction for boosted black holes. The jet power we find is $(v/2M)^2 \\Phi^2/(4\\pi)$, where $v$ is the hole's velocity, $M$ is its mass, and $\\Phi$ is the magnetic flux. We show that energy extraction from boosted black holes is conceptually similar to energy extraction from spinning black holes. However, we highlight two key technical differences: in the boosted case, jet power is no longer defined with respect to a Killing vector, and the relevant notion of black hole mass is observer dependent. We derive a new version of the membrane paradigm in which the membrane lives at infinity rather than the horizon and we show that this is useful for interpreting jets from boosted black holes. Our jet power prediction and the assumptions behind it can be tested with future numerical simulations.

  18. Identification of Astrophysical Black Holes

    E-Print Network [OSTI]

    Sandip K. Chakrabarti

    1998-03-19

    Black holes are by definition black, and therefore cannot be directly observed by using electromagnetic radiations. Convincing identification of black holes must necessarily depend on the identification of a very specially behaving matter and radiation which surround them. A major problem in this subject of black hole astrophysics is to quantify the behaviour of matter and radiation close to the horizon. In this review, the subject of black hole accretion and outflow is systematically developed. It is shown that both the stationary as well as the non-stationary properties of the observed spectra could be generally understood by these solutions. It is suggested that the solutions of radiative hydrodynamic equations may produce clear spectral signatures of black holes. Other circumstantial evidences of black holes, both in the galactic centers as well as in binary systems, are also presented.

  19. On the wave energy potential of Western Black Sea shelf

    E-Print Network [OSTI]

    Galabov, Vasko

    2013-01-01

    In the present study we evaluate the approaches to estimate the wave energy potential of the western Black Sea shelf with numerical models. For the purpose of our evaluation and due to the lack of long time series of measurements in the selected area of the Black Sea, we compare the modeled mean wave power flux output from the SWAN wave model with the only available long term measurements from the buoy of Gelendzhik for the period 1997-2003 (with gaps). The forcing meteorological data for the numerical wave models for the selected years is extracted from the ERA Interim reanalysis of ECMWF (European Centre for Medium range Forecasts). For the year 2003 we also compare the estimated wave power with the modeled by SWAN, using ALADIN regional atmospheric model winds. We try to identify the shortcomings and limitations of the numerical modeling approach to the evaluation of the wave energy potential in Black Sea.

  20. UONPR No. 1, Elk Hills, 26R Reservoir, Elk Hills oil and gas field, Kern County, California: Management Review: Surface operations and measurements of production and injection volumes

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    Evans, Carey and Crozier was given the task to conduct a Management Review of the Surface Operations of the 26R Reservoir in UONPR No. 1, Elk Hills field, Kern County, California. The MER strategy for this reservoir is to maintain pressure, and toward this end, gas injection volumes are scheduled to amount to 110% of calculated withdrawals. In spite of this, however, reservoir pressure continues to decline. The purpose of this study was, therefore, to determine if, and to what extent, field operating practices and accounting procedures may be contributing to this dilemma and to make appropriate recommendations pertaining to correcting any deficiencies which may have been found.

  1. Valley Hill, North Carolina: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York:PowerNewPumatyUvaldeVallesEnergy Information

  2. Far Hills, New Jersey: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbH JumpEllenville,PowerEvaporative||NewFale-Safe,Maine:Texas:

  3. Farmington Hills, Michigan: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbHFarinello Geothermal Power Station Jump to:Mutual Electric Co

  4. Desert Hills, Arizona: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower VenturesInformation9) WindGridDeepiSolar and Wind JumpEnergy|Desert

  5. Dutch Hill/Cohocton Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower VenturesInformation9)askDouble Oak,Durra Building Systems JumpDutch

  6. Edom Hills (repower) Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto Electric Coop, Inc Jump to: navigation, search Name: EdistoEdom

  7. El Centro/Superstition Hills Geothermal Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto Electric Coop, Inc Jump to: navigation, searchEgegikWorldProject

  8. El Dorado Hills, California: 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto Electric Coop, Inc Jump to: navigation,

  9. Black Hole Scan

    E-Print Network [OSTI]

    Juan Crisostomo; Ricardo Troncoso; Jorge Zanelli

    2000-09-22

    Gravitation theories selected by requiring that they have a unique anti-de Sitter vacuum with a fixed cosmological constant are studied. For a given dimension d, the Lagrangians under consideration are labeled by an integer k=1,2,...,[(d-1)/2]. Black holes for each d and k are found and are used to rank these theories. A minimum possible size for a localized electrically charged source is predicted in the whole set of theories, except General Relativity. It is found that the thermodynamic behavior falls into two classes: If d-2k=1, these solutions resemble the three dimensional black hole, otherwise, their behavior is similar to the Schwarzschild-AdS_4 geometry.

  10. Black holes at accelerators.

    E-Print Network [OSTI]

    Webber, Bryan R

    be presented and the effects of some of the uncertainties can be investigated. 3.1. Hawking Spectrum With the above assumptions, the spectrum of particles emitted during black hole decay takes the form dN dE ? ?E2 (eE/TH ? 1) T n+6H (8) where as usual... the trapped surface area [6, 7]. T030 02 4 6 8 10 0 0.2 0.4 0.6 0.8 1 1.2 n=0 n=1 n=2 n=6 E rS ?ˆ (0 ) ab s/ pi r2 S Figure 4: Grey-body factors for scalar emission on the brane from a (4 + n)D black hole. 0 2 4 6 8 10 0 0.2 0.4 0.6 0.8 1 1.2 n=0 n=1 n=2 n=6 E...

  11. Incoherent Scatter Measurements of E- and F-Region Density, Temperatures, and Collision Frequency at Millstone Hill

    E-Print Network [OSTI]

    Oliver, W. L.

    1979-02-23

    The Millstone Hill incoherent (Thomson) scatter radar system has been operated since 1963 to perform a synoptic study of F2-region electron densities, and electron and ion temperatures. These measurements have been conducted ...

  12. Croatian Language and Cultural Maintenance in the Slavic-American Community of Strawberry Hill, Kansas City, Kansas

    E-Print Network [OSTI]

    Glasgow, Holly Hood

    2012-05-31

    The purpose of this qualitative study was to investigate levels of immigrant language retention among Croatian-Americans in the Slavic diaspora community of Strawberry Hill in Kansas City, Kansas. There have been three major waves of Croatian...

  13. Where Do I Belong?: Evolving Reform and Identity Amongst the Zeme Heraka of North Cachar Hills, Assam, India. 

    E-Print Network [OSTI]

    Longkumer, Arkotong

    2008-01-01

    The focus of this thesis is the Heraka movement and its impact on the Zeme, a ‘Naga tribe’, in the North Cachar Hills of Assam, India. The Heraka is a religious reform movement derived from the traditional practice known ...

  14. Black Pine Circle Project

    SciTech Connect (OSTI)

    Mytko, Christine

    2014-03-31

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  15. Black Pine Circle Project

    ScienceCinema (OSTI)

    Mytko, Christine

    2014-09-15

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  16. Black Hole Demographics

    E-Print Network [OSTI]

    Laura Ferrarese

    2002-03-04

    The purpose of this contribution is to review the current status of black hole demographics in light of recent advances in the study of high redshift QSOs (section 2), local AGNs (section 3) and local quiescent galaxies (section 4). I will then outline the prospects for future progress (section 5), and discuss what I believe will be the challenges for the years to come [ABRIDGED].

  17. The Black Hole Particle Accelerator as a Machine to make Baby Universes

    E-Print Network [OSTI]

    Hamilton, A J S

    2013-01-01

    General relativity predicts that the inner horizon of an astronomically realistic rotating black hole is subject to the mass inflation instability. The inflationary instability acts like a gravity-powered particle accelerator of extraordinary power, accelerating accreted streams of particles along the principal outgoing and ingoing null directions at the inner horizon to collision energies that would, if nothing intervened, typically exceed exponentially the Planck energy. The inflationary instability is fueled by ongoing accretion, and is occurring inevitably in essentially every black hole in our Universe. This extravagant machine, the Black Hole Particle Accelerator, has the hallmarks of a device to make baby universes. Since collisions are most numerous inside supermassive black holes, reproductive efficiency requires our Universe to make supermassive black holes efficiently, as is observed.

  18. The Black Hole Particle Accelerator as a Machine to make Baby Universes

    E-Print Network [OSTI]

    A. J. S. Hamilton

    2013-05-20

    General relativity predicts that the inner horizon of an astronomically realistic rotating black hole is subject to the mass inflation instability. The inflationary instability acts like a gravity-powered particle accelerator of extraordinary power, accelerating accreted streams of particles along the principal outgoing and ingoing null directions at the inner horizon to collision energies that would, if nothing intervened, typically exceed exponentially the Planck energy. The inflationary instability is fueled by ongoing accretion, and is occurring inevitably in essentially every black hole in our Universe. This extravagant machine, the Black Hole Particle Accelerator, has the hallmarks of a device to make baby universes. Since collisions are most numerous inside supermassive black holes, reproductive efficiency requires our Universe to make supermassive black holes efficiently, as is observed.

  19. ENVIRONMENTAL REVIEW FOR CATEGORICAL EXCLUSION DETERMINATION

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

    South (ARH-CH S) and Archer- Cheyenne North (ARH-CH N) 115-kV Transmission Lines. Cheyenne Light, Fuel, and Power (CLFP), a subsidiary of Black Hills Power...

  20. Optical properties of black hole in the presence of plasma: shadow

    E-Print Network [OSTI]

    Farruh Atamurotov; Bobomurat Ahmedov; Ahmadjon Abdujabbarov

    2015-08-28

    We have studied photon motion around axially symmetric rotating Kerr black hole in the presence of plasma with radial power-law density. It is shown that in the presence of plasma the observed shape and size of shadow changes depending on i) plasma parameters, ii) black hole spin and iii) inclination angle between observer plane and axis of rotation of black hole. In order to extract pure effect of plasma influence on black hole image the particular case of the Schwarzschild black hole has also been investigated and it has been shown that i) the photon sphere around the spherical symmetric black hole is left unchanged under the plasma influence, ii) however the Schwarzschild black hole shadow size in plasma is reduced due to the refraction of the electromagnetic radiation in plasma environment of black hole. The study of the energy emission from the black hole in plasma shows that in the presence of plasma the maximal energy emission rate from the black hole decreases.

  1. CH2M Hill Heat Stress Mitigation Efforts During Tank Farm Work Activities

    SciTech Connect (OSTI)

    Smoot, W.L. [CH2M HILL Hanford Group, Inc., Richland, WA (United States)

    2007-07-01

    In the past, while working under the hot summer sun at the Hanford Tank Farms, workers were assigned a protective work-rest regimen and heat stress mitigation efforts were applied to prevent heat-related illnesses and minimize impacts to project schedules. In February 2006, CH2M HILL kicked off a heat stress improvement initiative led by an experienced person emphasizing the importance of worker involvement, employee education, and the application of the ALARA, or As Low As Reasonably Achievable, concepts of engineered controls, administrative controls, personal protective equipment, and physiological and work site monitoring. As a result of this initiative built upon previous years' efforts, CH2M HILL experienced increased 'wrench time' during the summer of 2006 with fewer heat-related illnesses than in previous years. (authors)

  2. Technical safety appraisal of the Naval Petroleum Reserve No. 1, Elk Hills, California

    SciTech Connect (OSTI)

    Not Available

    1989-04-01

    The existing Elk Hills facilities for fluid production consist of tank settings, gas and oil/water gathering pipelines, gas plants, compressor facilities, lease automatic custody transfer units which meter the crude oil going to sales, and natural gas sales meters and pipelines, water injection and source wells, and gas injection pipelines and wells. The principal safety concerns presented by operations at Elk Hills are fire, occupational safety and industrial hygiene considerations. Transportation and motor vehicle accidents are also of great concern because of the large amount of miles driven on more than 900 miles of roads. Typical operations involve hazardous materials and processing equipment such as vessels, compressors, boilers, piping and valves. The aging facilities, specifically the 35R Gas Plant (constructed in 1952) and many of the pipelines, introduce an additional element of hazard to the operations.

  3. Naval petroleum reserves: Preliminary analysis of future net revenues from Elk Hills production

    SciTech Connect (OSTI)

    Not Available

    1986-01-01

    This is an interim report on the present value of the net revenues from Elk Hills Naval Petroleum Reserve. GAO calculated alternative present values of the net revenues applying (1) low, medium, and high forecasts of future crude oil prices and (2) alternative interest rates for discounting the future net revenues to their present values. The calculations are sensitive to both the oil price forecasts and discount rates used; they are preliminary and should be used with caution. They do not take into account possible added tax revenues collected by the government if Elk Hills were sold nor varying production levels and practices, which could either increase or decrease the total amount of oil that can be extracted.

  4. Naval petroleum reserves: Oil sales procedures and prices at Elk Hills, April through December 1986

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    The Elk Hills Naval Petroleum Reserve is located near Bakersfield, California and ranks seventh among domestic producing oil fields. In Feb. 1986 the Department of Energy awarded contracts to 16 companies for the sale of about 82,000 barrels per day of NPR crude oil between April and September 1986. These companies bid a record high average discount of $4.49 from DOE's base price. The discounts ranged from $0.87 to $6.98 per barrel. These contracts resulted in DOE selling Elk Hills oil as low as $3.91 per barrel. Energy stated that the process for selling from NPR had gotten out of step with today's marketplace. Doe subsequently revised its sales procedures which requires bidders to submit a specific price for the oil rather than a discount to a base price. DOE also initiated other efforts designed to avoid future NPR oil sales at less than fair market value.

  5. Masses of Stellar Black Holes and Testing Theories of Gravitation

    E-Print Network [OSTI]

    K. A. Postnov; A. M. Cherepashchuk

    2004-01-22

    We analyze the mass distribution of stellar black holes derived from the light and radial velocity curves of optical stars in close binary systems using dynamical methods. The systematic errors inherent in this approach are discussed. These are associated primarily with uncertainties in models for the contribution from gaseous structures to the optical brightness of the systems under consideration. The mass distribution is nearly flat in the range 4-15M_sun. This is compared with the mass distribution for black holes in massive close binaries, which can be manifest as ultraluminous X-ray sources (L_x > 10^39 erg/s) observed in other galaxies. If the X-ray luminosities of these objects correspond to the Eddington limit, the black-hole mass distribution should be described by a power law, which is incompatible with the flat shape derived dynamically from observations of close binaries in our Galaxy. One possible explanation of this discrepancy is the rapid evaporation of stellar-mass black holes predicted in recent multi-dimensional models of gravity. This hypothesis can be verifed by measuring the stellar black-hole mass spectrum or finding isolated or binary black holes with masses below 3M_sun.

  6. Bright vigorous winds as signposts of supermassive black hole birth

    E-Print Network [OSTI]

    Fiacconi, Davide

    2015-01-01

    The formation of supermassive black holes is still an outstanding question. In the quasi-star scenario, black hole seeds experience an initial super-Eddington growth, that in less than a million years may leave a $10^4-10^5$ M$_{\\odot}$ black hole at the centre of a protogalaxy at $z \\sim 20-10$. Super-Eddington accretion, however, may be accompanied by vigorous mass loss that can limit the amount of mass that reaches the black hole. In this paper, we critically assess the impact of radiative driven winds, launched from the surface of the massive envelopes from which the black hole accretes. Solving the full wind equations coupled with the hydrostatic structure of the envelope, we find mass outflows with rates between a few tens and $10^4$ M$_{\\odot}$ yr$^{-1}$, mainly powered by advection luminosity within the outflow. We therefore confirm the claim by Dotan, Rossi & Shaviv (2011) that mass losses can severely affect the black hole seed early growth within a quasi-star. In particular, seeds with mass $>1...

  7. 3D Model of the McGinness Hills Geothermal Area

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

    Faulds, James E.

    2013-12-31

    The McGinness Hills geothermal system lies in a ~8.5 km wide, north-northeast trending accommodation zone defined by east-dipping normal faults bounding the Toiyabe Range to the west and west-dipping normal faults bounding the Simpson Park Mountains to the east. Within this broad accommodation zone lies a fault step-over defined by north-northeast striking, west-dipping normal faults which step to the left at roughly the latitude of the McGinness Hills geothermal system. The McGinness Hills 3D model consists of 9 geologic units and 41 faults. The basal geologic units are metasediments of the Ordovician Valmy and Vininni Formations (undifferentiated in the model) which are intruded by Jurassic granitic rocks. Unconformably overlying is a ~100s m-thick section of Tertiary andesitic lava flows and four Oligocene-to-Miocene ash-flow tuffs: The Rattlesnake Canyon Tuff, tuff of Sutcliffe, the Cambell Creek Tuff and the Nine Hill tuff. Overlying are sequences of pre-to-syn-extensional Quaternary alluvium and post-extensional Quaternary alluvium. 10-15º eastward dip of the Tertiary stratigraphy is controlled by the predominant west-dipping fault set. Geothermal production comes from two west dipping normal faults in the northern limb of the step over. Injection is into west dipping faults in the southern limb of the step over. Production and injection sites are in hydrologic communication, but at a deep level, as the northwest striking fault that links the southern and northern limbs of the step-over has no permeability.

  8. 3D Model of the McGinness Hills Geothermal Area

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

    Faulds, James E.

    The McGinness Hills geothermal system lies in a ~8.5 km wide, north-northeast trending accommodation zone defined by east-dipping normal faults bounding the Toiyabe Range to the west and west-dipping normal faults bounding the Simpson Park Mountains to the east. Within this broad accommodation zone lies a fault step-over defined by north-northeast striking, west-dipping normal faults which step to the left at roughly the latitude of the McGinness Hills geothermal system. The McGinness Hills 3D model consists of 9 geologic units and 41 faults. The basal geologic units are metasediments of the Ordovician Valmy and Vininni Formations (undifferentiated in the model) which are intruded by Jurassic granitic rocks. Unconformably overlying is a ~100s m-thick section of Tertiary andesitic lava flows and four Oligocene-to-Miocene ash-flow tuffs: The Rattlesnake Canyon Tuff, tuff of Sutcliffe, the Cambell Creek Tuff and the Nine Hill tuff. Overlying are sequences of pre-to-syn-extensional Quaternary alluvium and post-extensional Quaternary alluvium. 10-15º eastward dip of the Tertiary stratigraphy is controlled by the predominant west-dipping fault set. Geothermal production comes from two west dipping normal faults in the northern limb of the step over. Injection is into west dipping faults in the southern limb of the step over. Production and injection sites are in hydrologic communication, but at a deep level, as the northwest striking fault that links the southern and northern limbs of the step-over has no permeability.

  9. ENGINEER 2MM3 -Electrical Circuits & Power TERM 1, 2014/15

    E-Print Network [OSTI]

    Haykin, Simon

    Machinery Fundamentals, McGraw Hill, Fourth Edition, 2005. Reference Book: T. Wildi, Electrical machines of electric circuits, phasors 3. Transformers 4. AC generators and motors 5. Three-phase circuits 7. 3-phaseENGINEER 2MM3 - Electrical Circuits & Power TERM 1, 2014/15 Course Outline Instructor: Shiva

  10. Probing Dark Energy with Black Hole Binaries

    E-Print Network [OSTI]

    Laura Mersini-Houghton; Adam Kelleher

    2008-08-25

    The equation of state (EoS) of dark energy $w$ remains elusive despite enormous experimental efforts to pin down its value and its time variation. Yet it is the single most important handle we have in our understanding of one of the most mysterious puzzle in nature, dark energy. This letter proposes a new method for measuring the EoS of dark energy by using the gravitational waves (GW) of black hole binaries. The method described here offers an alternative to the standard way of large scale surveys. It is well known that the mass of a black hole changes due to the accretion of dark energy but at an extremely slow rate. However, a binary of supermassive black holes (SBH) radiates gravitational waves with a power proportional to the masses of these accreting stars and thereby carries information on dark energy. These waves can propagate through the vastness of structure in the universe unimpeded. The orbital changes of the binary, induced by the energy loss from gravitational radiation, receive a large contribution from dark energy accretion. This contribution is directly proportional to $(1+w)$ and is dominant for SBH binaries with separation $R \\ge 1000$ parsec, thereby accelerating the merging process for $w > -1$ or ripping the stars apart for phantom dark energy with $w < -1$. Such orbital changes, therefore $w$, can be detected with LIGO and LISA near merging time, or with X-ray and radio measurements of Chandra and VLBA experiments.

  11. How the DNA sequence affects the Hill curve of transcriptional response

    E-Print Network [OSTI]

    M. Sheinman; Y. Kafri

    2011-11-16

    The Hill coefficient is often used as a direct measure of the cooperativity of binding processes. It is an essential tool for probing properties of reactions in many biochemical systems. Here we analyze existing experimental data and demonstrate that the Hill coefficient characterizing the binding of transcription factors to their cognate sites can in fact be larger than one -- the standard indication of cooperativity -- even in the absence of any standard cooperative binding mechanism. By studying the problem analytically, we demonstrate that this effect occurs due to the disordered binding energy of the transcription factor to the DNA molecule and the steric interactions between the different copies of the transcription factor. We show that the enhanced Hill coefficient implies a significant reduction in the number of copies of the transcription factors which is needed to occupy a cognate site and, in many cases, can explain existing estimates for numbers of the transcription factors in cells. The mechanism is general and should be applicable to other biological recognition processes.

  12. Subsurface water flow simulated for hill slopes with spatially dependent soil hydraulic characteristics

    SciTech Connect (OSTI)

    Sharma, M.L.; Luxmoore, R.J.; DeAngelis, R.; Ward, R.C.; Yeh, G.T.

    1987-08-01

    Water flow through hill slopes consisting of five soil layers, with varying spatial dependence in hydraulic characteristics in the lateral plane was simulated by solving Richards' equation in three dimensions under varying rainfall intensities and for two complexities of terrain. By concepts of similar media the variability in soil hydraulic characteristics was expressed by a single dimensionless parameter, the scaling factor ..cap alpha... The moments of log normally distributed ..cap alpha.. were set as: Mean = 1.0 and standard deviation = 1.0. Four cases of spatial dependence of ..cap alpha.. in the lateral plane were selected for simulation, using exponential variogram functions ranging in spatial structure from random (no spatial dependence) to large dependence (large correlation lengths). The simulations showed that the rates of subsurface flow from the 30/sup 0/ hillslope, during and following rainfall, were significantly enhanced with an increase in spatial dependence. Subsurface drainage was also increased with increases in rainfall intensity and slop complexity. For hill slopes the relative effects of spatial dependence in soil hydraulic characteristics was smaller with 30/sup 0/ horizontal pitching than without pitching. Hill slopes with a random distribution of hydraulic characteristics provided greater opportunity for soil units with differing water capacities to interact than in cases with spatially correlated distributions. This greater interaction is associated with a greater lag in subsurface flow generation. These studies illustrate some of the expected effects of spatial dependence of soil hydraulic characteristics of the integrated hydrologic response of land areas.

  13. Black holes in general relativity

    E-Print Network [OSTI]

    Visser, Matt

    2009-01-01

    What is going on (as of August 2008) at the interface between theoretical general relativity, string-inspired models, and observational astrophysics? Quite a lot. In this mini-survey I will make a personal choice and focus on four specific questions: Do black holes "exist"? (For selected values of the word "exist".) Is black hole formation and evaporation unitary? Can one mimic a black hole to arbitrary accuracy? Can one detect the presence of a horizon using local physics?

  14. Quantum Mechanics and Black Holes

    E-Print Network [OSTI]

    Jose N. Pecina-Cruz

    2005-11-27

    This paper discusses the existence of black holes from the foundations of quantum mechanics. It is found that quantum mechanics rule out a possible gravitational collapse.

  15. Why Blue-Collar Blacks Help Less

    E-Print Network [OSTI]

    Smith, Sandra Susan; Young, Kara Alexis

    2013-01-01

    Exclude Black Men from Blue-Collar Jobs. Berkeley, CA:How Black and Latino Blue Collar Workers Make Decisionsof Sample Respondents Blue-Collar Latinos Blue-Collar Black

  16. Dermoscopy of black-spot poison ivy

    E-Print Network [OSTI]

    Rader, Ryan K; Mu, Ruipu; Shi, Honglan; Stoecker, William V; Hinton, Kristen A

    2012-01-01

    CT, Bean AS. Black-spot poison ivy: A rare phenomenon. J AmJG, Lucky AW. Black spot poison ivy: A report of 5 cases andis unique for black-spot poison ivy. The UFLC-MS/MS urushiol

  17. Green, Black, Lean Six Sigma and Master Black Belt Certifications

    E-Print Network [OSTI]

    Grissino-Mayer, Henri D.

    Green, Black, Lean Six Sigma and Master Black Belt Certifications Green BeLt CertifiCation Candidates may choose from three Green Belts offered: 1) Lean (one week of coursework) 2) Lean Six Sigma (two weeks of coursework) 3) Six Sigma (two weeks of coursework) Green Belt certification is a two

  18. Eigenvalues from power--series expansions: an alternative approach

    E-Print Network [OSTI]

    P. Amore; F. M. Fernandez

    2008-12-09

    An appropriate rational approximation to the eigenfunction of the Schr\\"{o}dinger equation for anharmonic oscillators enables one to obtain the eigenvalue accurately as the limit of a sequence of roots of Hankel determinants. The convergence rate of this approach is greater than that for a well--established method based on a power--series expansions weighted by a Gaussian factor with an adjustable parameter (the so--called Hill--determinant method).

  19. Thermal BEC black holes

    E-Print Network [OSTI]

    Roberto Casadio; Andrea Giugno; Octavian Micu; Alessio Orlandi

    2015-11-04

    We review some features of BEC models of black holes obtained by means of the HWF formalism. We consider the KG equation for a toy graviton field coupled to a static matter current in spherical symmetry. The classical field reproduces the Newtonian potential generated by the matter source, while the corresponding quantum state is given by a coherent superposition of scalar modes with continuous occupation number. An attractive self-interaction is needed for bound states to form, so that (approximately) one mode is allowed, and the system of N bosons can be self-confined in a volume of the size of the Schwarzschild radius. The HWF is then used to show that the radius of such a system corresponds to a proper horizon. The uncertainty in the size of the horizon is related to the typical energy of Hawking modes: it decreases with the increasing of the black hole mass (larger number of gravitons), in agreement with semiclassical calculations and different from a single very massive particle. The spectrum contains a discrete ground state of energy $m$ (the bosons forming the black hole), and a continuous spectrum with energy $\\omega > m$ (representing the Hawking radiation and modelled with a Planckian distribution at the expected Hawking temperature). The $N$-particle state can be collectively described by a single-particle wave-function given by a superposition of a total ground state with energy $M = N m$ and a Planckian distribution for $E > M$ at the same Hawking temperature. The partition function is then found to yield the usual area law for the entropy, with a logarithmic correction related with the Hawking component. The backreaction of modes with $\\omega > m$ is also shown to reduce the Hawking flux and the evaporation properly stops for vanishing mass.

  20. Holographic Black Hole Chemistry

    E-Print Network [OSTI]

    Andreas Karch; Brandon Robinson

    2015-11-02

    Thermodynamic quantities associated with black holes in Anti-de Sitter space obey an interesting identity when the cosmological constant is included as one of the dynamical variables, the generalized Smarr relation. We show that this relation can easily be understood from the point of view of the dual holographic field theory. It amounts to the simple statement that the extensive thermodynamic quantities of a large $N$ gauge theory only depend on the number of colors, $N$, via an overall factor of $N^2$.

  1. You Cannot Press Out the Black Hole

    E-Print Network [OSTI]

    Daisuke Ida; Takahiro Okamoto

    2012-01-03

    It is shown that a ball-shaped black hole region homeomorphic with D**n cannot be pressed out, along whichever axis penetrating the black hole region, into a black ring with a doughnut-shaped black hole region homeomorphic with S**1 x D**(n-1). A more general prohibition law for the change of the topology of black holes, including a version of no-bifurcation theorems for black holes, is given.

  2. Black Stars and Gamma Ray Bursts

    E-Print Network [OSTI]

    Tanmay Vachaspati

    2007-06-08

    Stars that are collapsing toward forming a black hole but are frozen near the Schwarzschild horizon are termed ``black stars''. Collisions of black stars, in contrast to black hole collisions, may be sources of gamma ray bursts, whose basic parameters are estimated quite simply and are found to be consistent with observed gamma ray bursts. Black star gamma ray bursts should be preceded by gravitational wave emission similar to that from the coalescence of black holes.

  3. Black Holes of Negative Mass

    E-Print Network [OSTI]

    R. B. Mann

    1997-05-06

    I demonstrate that, under certain circumstances, regions of negative energy density can undergo gravitational collapse into a black hole. The resultant exterior black hole spacetimes necessarily have negative mass and non-trivial topology. A full theory of quantum gravity, in which topology-changing processes take place, could give rise to such spacetimes.

  4. Pumped Storage Hydropower (Project Development Support)—Geotechnical Investigation and Value Stream Analysis for the Iowa Hill Pumped-Storage Development

    Office of Energy Efficiency and Renewable Energy (EERE)

    Pumped Storage Hydropower (Project Development Support)—Geotechnical Investigation and Value Stream Analysis for the Iowa Hill Pumped-Storage Development

  5. Benefits of Research in Particle Physics Phil Allport, Barbara Camanzi, Marcus French, ,Nathan Hill, Mark Lancaster, Steve Lloyd, Jason McFall, Val O'Shea, Mike Poole,

    E-Print Network [OSTI]

    Crowther, Paul

    Hill, Mark Lancaster, Steve Lloyd, Jason McFall, Val O'Shea, Mike Poole, Tim Short, Stephen Watts ........................................8 2.9. Professor Mike Poole: a Biography

  6. Kesona Power Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder atHills,NewKeithDelaware:DLR CooperationKersey,Kesona Power

  7. Jefferson Power Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder atHills, Pennsylvania: Energy Resources Jump to:Power Biomass

  8. Blue Lake Power | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-GasIllinois: EnergyHills, Connecticut: Energy ResourcesPower

  9. Will Power Company | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company)Idaho)VosslohWest PlainsAssn,WilderHill NewPower Company

  10. Wilson TurboPower | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company)Idaho)VosslohWest PlainsAssn,WilderHillTurboPower Jump

  11. Black hole feedback in the luminous quasar PDS 456

    E-Print Network [OSTI]

    Nardini, E; Gofford, J; Harrison, F A; Risaliti, G; Braito, V; Costa, M T; Matzeu, G A; Walton, D J; Behar, E; Boggs, S E; Christensen, F E; Craig, W W; Hailey, C J; Matt, G; Miller, J M; O'Brien, P T; Stern, D; Turner, T J; Ward, M J

    2015-01-01

    The evolution of galaxies is connected to the growth of supermassive black holes in their centers. During the quasar phase, a huge luminosity is released as matter falls onto the black hole, and radiation-driven winds can transfer most of this energy back to the host galaxy. Over five different epochs, we detected the signatures of a nearly spherical stream of highly ionized gas in the broadband X-ray spectra of the luminous quasar PDS 456. This persistent wind is expelled at relativistic speeds from the inner accretion disk, and its wide aperture suggests an effective coupling with the ambient gas. The outflow's kinetic power larger than 10^46 ergs per second is enough to provide the feedback required by models of black hole and host galaxy co-evolution.

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

    SciTech Connect (OSTI)

    Janice Gillespie

    2004-11-01

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

  13. Constraining Black Hole Spin Via X-ray Spectroscopy

    E-Print Network [OSTI]

    Laura W. Brenneman; Christopher S. Reynolds

    2006-08-23

    We present an analysis of the observed broad iron line feature and putative warm absorber in the long 2001 XMM-Newton observation of the Seyfert-1.2 galaxy MCG-6-30-15. The new "kerrdisk" model we have designed for simulating line emission from accretion disk systems allows black hole spin to be a free parameter in the fit, enabling the user to formally constrain the angular momentum of a black hole, among other physical parameters of the system. In an important extension of previous work, we derive constraints on the black hole spin in MCG-6-30-15 using a self-consistent model for X-ray reflection from the surface of the accretion disk while simultaneously accounting for absorption by dusty photoionized material along the line of sight (the warm absorber). Even including these complications, the XMM-Newton/EPIC-pn data require extreme relativistic broadening of the X-ray reflection spectrum; assuming no emission from within the radius of marginal stability, we derive a formal constraint on the dimensionless black hole spin parameter of a > 0.987 at 90% confidence. The principal unmodeled effect that can significantly reduce the inferred black hole spin is powerful emission from within the radius of marginal stability. Although significant theoretical developments are required to fully understand this region, we argue that the need for a rapidly spinning black hole is robust to physically plausible levels of emission from within the radius of marginal stability. In particular, we show that a non-rotating black hole is strongly ruled out.

  14. Solar cycle and seasonal variations in F region electrodynamics at Millstone Hill

    SciTech Connect (OSTI)

    Buonsanto, M.J.; Hagan, M.E.; Salah, J.E. [Massachusetts Institute of Technology, Westford, MA (United States); Fejer, B.G. [Utah State Univ., Logan, UT (United States)

    1993-09-01

    Incoherent scatter radar observations of ion drifts taken at Millstone Hill (42.6{degrees}N, 288.5{degrees}E) during 73 experiments in the period February 1984 to February 1992 are used to construct, for the first time at this station, average quiet-time ExB drift patterns for both solar cycle maximum and minimum, for the summer, winter, and equinox seasons. The daily variation of V{sub {perpendicular}N} shows a reversal from northward to southward drifts near noon, and a return to northward drifts in the premidnight hours. The weaker southward drift in the afternoon in summer noted by Wand and Evans is shown to occur only at sunspot minimum. The daily variation of V{sub {perpendicular}E} shows daytime eastward drifts and nighttime westward drifts, except in summer when the usual daytime eastward maximum near 1200 LT is suppressed. The daily mean drift is westward for all seasons, and is largest in summer. The daytime eastward drift and nighttime westward drift tend to be stronger at solar maximum than at solar minimum. Average drift patterns are also constructed for equinox for both extremely quiet and geomagnetically disturbed periods. V{sub {perpendicular}N} is appreciably more northward under extremely quiet than under disturbed conditions in the postmidnight and morning periods. During extremely quiet periods, V{sub {perpendicular}E} turns slightly eastward in the evening hours, while it is strongly westward for disturbed conditions. This result contrasts with the strong eastward drifts in the evening in summer reported for extremely quiet conditions at Millstone Hill by Gonzalez et al. A strong anticorrelation is seen at Millstone Hill between V{sub {perpendicular}N} and V{sub {parallel}}, as is found at lower latitude stations. The quiet-time patterns are discussed in terms of the causative E and F region dynamo mechanisms. 39 refs., 6 figs., 2 tabs.

  15. Application of turbidite facies of the Stevens Oil Zone for reservoir management, Elk Hills Field, California

    SciTech Connect (OSTI)

    Reid, S.A.; Thompson, T.W.; McJannet, G.S.

    1996-12-31

    A detailed depositional model for the uppermost sand reservoirs of the Stevens Oil Zone, Elk Hills Field, California, contains three facies: turbidite channel-fill sand bodies, overbank Sandstone and mudstone, and pelagic and hemipelagic siliceous shale. Sand bodies are the primary producing facies and consist of layered, graded sandstone with good permeability. The presence of incipient anticlines with subsea relief in the late Miocene resulted in deposition of lenticular and sinuous sand Was within structurally created channels. Relief of these structural channels was low when the earliest sand bodies were deposited, leading to a wide channel complex bounded by broad overbank deposits of moderate to low permeability. As deposition proceeded, increased structural relief constrained the channels, resulting in narrower sand body width and relatively abrupt channel terminations against very low permeability siliceous shale. With post-Miocene uplift and differential compaction, stratigraphic mounding of sand bodies helped create structural domes such as the 24Z reservoir. Stratigraphic traps including the 26R reservoir were also created. Such traps vary in seal quality from very effective to leaky, depending on the lateral transition from sand bodies to siliceous shale. Application of the Elk Hills turbidity model (1) provides a framework for monitoring production performance in the 24Z and Northwest Stevens waterflood projects; and for tracking gas migration into and out of the 26R reservoir, (2) helps b identify undeveloped locations in the 26R reservoir ideally suited for horizontal wells, (3) has led to the identification of two new production trends in the 29R area, and (4) makes possible the development of exploration plays in western Elk Hills.

  16. Application of turbidite facies of the Stevens Oil Zone for reservoir management, Elk Hills Field, California

    SciTech Connect (OSTI)

    Reid, S.A.; Thompson, T.W. ); McJannet, G.S. )

    1996-01-01

    A detailed depositional model for the uppermost sand reservoirs of the Stevens Oil Zone, Elk Hills Field, California, contains three facies: turbidite channel-fill sand bodies, overbank Sandstone and mudstone, and pelagic and hemipelagic siliceous shale. Sand bodies are the primary producing facies and consist of layered, graded sandstone with good permeability. The presence of incipient anticlines with subsea relief in the late Miocene resulted in deposition of lenticular and sinuous sand Was within structurally created channels. Relief of these structural channels was low when the earliest sand bodies were deposited, leading to a wide channel complex bounded by broad overbank deposits of moderate to low permeability. As deposition proceeded, increased structural relief constrained the channels, resulting in narrower sand body width and relatively abrupt channel terminations against very low permeability siliceous shale. With post-Miocene uplift and differential compaction, stratigraphic mounding of sand bodies helped create structural domes such as the 24Z reservoir. Stratigraphic traps including the 26R reservoir were also created. Such traps vary in seal quality from very effective to leaky, depending on the lateral transition from sand bodies to siliceous shale. Application of the Elk Hills turbidity model (1) provides a framework for monitoring production performance in the 24Z and Northwest Stevens waterflood projects; and for tracking gas migration into and out of the 26R reservoir, (2) helps b identify undeveloped locations in the 26R reservoir ideally suited for horizontal wells, (3) has led to the identification of two new production trends in the 29R area, and (4) makes possible the development of exploration plays in western Elk Hills.

  17. The mass function of high redshift seed black holes

    E-Print Network [OSTI]

    Lodato, G; Lodato, Giuseppe; Natarajan, Priyamvada

    2007-01-01

    In this paper we derive the mass function of seed black holes that result from the central mass concentrated via disc accretion in collapsed haloes at redshift $z\\approx 15$. Using standard arguments including stability, we show that these pre-galactic discs can assemble a significant mass concentration in the inner regions, providing fuel for the formation and initial growth of super-massive black holes. Assuming that these mass concentrations do result in central seed black holes, we determine the mass distribution of these seeds as a function of key halo properties. The seed mass distribution determined here turns out to be asymmetric and skewed to higher masses. Starting with these initial seeds, building up to $10^9$ solar masses by $z = 6$ to power the bright quasars is not a problem in the standard LCDM cosmogony. These seed black holes in gas rich environments are likely to grow into the supermassive black holes at later times via mergers and accretion. Gas accretion onto these seeds at high redshift ...

  18. CH2M HILL Plateau Remediation Company, NEL-2014-01

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBerylliumDepartmentResolutionCamberley Homes |EnergyJune 19,| Department ofCFASTCH2M HILL

  19. Ranching in the Kansas Flint Hills: Exploring the Built Forms of a Family Cattle Ranch

    E-Print Network [OSTI]

    Adams, Paula Graves

    1997-05-01

    in the Flint Hills 234 Sources Consulted 237 iv List of Figures Page 1.1 Adaptation of W. P. Webb's Land Regions of the United States 2 1.2 The Lazy Flying S Ranch, township 13, range 9, section 4 2 1.3 Periodization of key influences on the landscape 7 2... of concrete silo typical of the 1920s on Skyline Drive 127 5.9 Home ceramic block chicken coop, south elevation 128 5.10 Home ceramic block chicken coop, west elevation 128 5.11 Gus and Auguste Schultz, 1901 136 5.12 Ranch home of Mr. Samuel Fixx, Yampa, Colorado 137...

  20. Slip and Dilation Tendency Anlysis of McGinness Hills Geothermal Area

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

    Faulds, James E.

    2013-12-31

    Stress field variation within each focus area was approximated based on regional published data and the world stress database (Hickman et al., 2000; Hickman et al., 1998 Robertson-Tait et al., 2004; Hickman and Davatzes, 2010; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012; Moeck et al., 2010; Moos and Ronne, 2010 and Reinecker et al., 2005) as well as local stress information if applicable. For faults within these focus systems we applied either a normal faulting stress regime where the vertical stress (sv) is larger than the maximum horizontal stress (shmax) which is larger than the minimum horizontal stress (sv>shmax>shmin) or strike-slip faulting stress regime where the maximum horizontal stress (shmax) is larger than the vertical stress (sv) which is larger than the minimum horizontal stress (shmax >sv>shmin) depending on the general tectonic province of the system. Based on visual inspection of the limited stress magnitude data in the Great Basin we used magnitudes such that shmin/shmax = .527 and shmin/sv= .46, which are consistent with complete and partial stress field determinations from Desert Peak, Coso, the Fallon area and Dixie valley (Hickman et al., 2000; Hickman et al., 1998 Robertson-Tait et al., 2004; Hickman and Davatzes, 2011; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012). Slip and dilation tendency for the McGinness Hills geothermal field was calculated based on the faults mapped McGinness Hills area (Siler 2012, unpublished). The McGinness Hills area lies in the Basin and Range Province, as such we applied a normal faulting stress regime to the McGinness area faults, with a minimum horizontal stress direction oriented 115, based on inspection of local and regional stress determinations, as explained above. Under these stress conditions north-northeast striking, steeply dipping fault segments have the highest dilation tendency, while north-northeast striking 60° dipping fault segments have the highest tendency to slip. The McGinness Hills geothermal system is characterized by a left-step in a north-northeast striking west-dipping fault system wit...

  1. Slip and Dilation Tendency Anlysis of McGinness Hills Geothermal Area

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

    Faulds, James E.

    Stress field variation within each focus area was approximated based on regional published data and the world stress database (Hickman et al., 2000; Hickman et al., 1998 Robertson-Tait et al., 2004; Hickman and Davatzes, 2010; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012; Moeck et al., 2010; Moos and Ronne, 2010 and Reinecker et al., 2005) as well as local stress information if applicable. For faults within these focus systems we applied either a normal faulting stress regime where the vertical stress (sv) is larger than the maximum horizontal stress (shmax) which is larger than the minimum horizontal stress (sv>shmax>shmin) or strike-slip faulting stress regime where the maximum horizontal stress (shmax) is larger than the vertical stress (sv) which is larger than the minimum horizontal stress (shmax >sv>shmin) depending on the general tectonic province of the system. Based on visual inspection of the limited stress magnitude data in the Great Basin we used magnitudes such that shmin/shmax = .527 and shmin/sv= .46, which are consistent with complete and partial stress field determinations from Desert Peak, Coso, the Fallon area and Dixie valley (Hickman et al., 2000; Hickman et al., 1998 Robertson-Tait et al., 2004; Hickman and Davatzes, 2011; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012). Slip and dilation tendency for the McGinness Hills geothermal field was calculated based on the faults mapped McGinness Hills area (Siler 2012, unpublished). The McGinness Hills area lies in the Basin and Range Province, as such we applied a normal faulting stress regime to the McGinness area faults, with a minimum horizontal stress direction oriented 115, based on inspection of local and regional stress determinations, as explained above. Under these stress conditions north-northeast striking, steeply dipping fault segments have the highest dilation tendency, while north-northeast striking 60° dipping fault segments have the highest tendency to slip. The McGinness Hills geothermal system is characterized by a left-step in a north-northeast striking west-dipping fault system wit...

  2. Precambrian geology of a portion of the Purdy Hill quadrangle, Mason County, Texas 

    E-Print Network [OSTI]

    Mutis-Duplat, Emilio

    1969-01-01

    ) (Head of Department) (Membe r) A ust 1969 ABS TRAC T Precambrian Geology of a Portion of the Purdy Hill Quadrangle, Mason County, Texas. (August 1969) Emilio Mutis-Duplat, Geologist and Geophysicist, Unive re idad Nacional de Colombia; Directed by...'s understanding of the geology of the area. Dr. Robert R. Berg, Head of the Department of Geology, who was a permanent source of encouragement. The members of the Awards Committee of the Department of Geology, for the award that provided financial support...

  3. Western Shallow Oil Zone, Elk Hills Field, Kern County, California: General Reservoir Study:

    SciTech Connect (OSTI)

    Carey, K.B.

    1987-09-01

    This study, Appendix I, addresses the Bittium Sands and its sub units and pools. Basic pressure, production and assorted technical data were provided by the US Department of Energy staff at Elk Hills. These data were accepted as furnished with no attempt being made by Evanc, Carey and Crozier for independent verification. This study has identified the petrophysical properties and the past productive performance of the reservoirs. Primary reserves have been determined and general means of enhancing future recovery have been suggested. It is hoped that this volume can now additionally serve as a take off point for exploitation engineers to develop specific programs toward the end. 21 figs., 9 tabs.

  4. Naval petroleum reserves: Sales procedures and prices received for Elk Hills oil

    SciTech Connect (OSTI)

    Not Available

    1986-01-01

    The Congress expressed concern about the Department of Energy's actions in selling oil from the Elk Hills Naval Petroleum Reserve at what appeared to be unreasonably low prices. DOE officials believe that Naval Petroleum Reserve oil has been and is currently being produced at the appropriate rate and that no recoverable oil has been lost. This fact sheet provides information on the basis for the procedures followed by DOE in selling Naval Petroleum Reserve oil and sales data for the period extending from October 1985 through April 1986.

  5. Changing Pattern of Forest Consumption: A Case Study from An Eastern Hill Village in Nepal

    E-Print Network [OSTI]

    Pokharel, Binod

    2003-01-01

    , HMGIN 1982 : 63). It is considered a very important contribution of forestry to hill farming in the use of plant bio-mass when mixed with animal excreta yields organic compost m'anure which forms the principal source of soil nutrients for hilly... an important role m sustamlng. the productivity of the land by using the organic manure of anllnal Binod Pokhorell Chonging Pal/ern ofFores/... 43 dung supported with bedding materials from the forest which provides grass, trees and fodder for animals (ADBIN...

  6. Voluntary Protection Program Onsite Review, CH2M HILL Plateau Remediation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-Sessions | Department ofVPV-SiteTestingOfficeU.S. DepartmentVPPPAM HILL

  7. Seven Mile Hill I & II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-bRenewableSMUDSectionalIndustriels de GeneveMile Hill I

  8. Consent Order, Kaiser-Hill Company, LLC - EA 98-03 | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electric vehicle (PEV)Day-June 22,FresnoSky)Nuclear8 Issued to Kaiser-Hill

  9. Dark Matter Hawking Radiation? Dark Spinors Tunnelling in String Theory Black Holes

    E-Print Network [OSTI]

    Cavalcanti, R T

    2015-01-01

    The Hawking radiation spectrum of Kerr-Sen axion-dilaton black holes is derived, in the context of dark spinors tunnelling across the horizon. Since a black hole has a well defined temperature, it should radiate in principle all the standard model particles, similar to a black body at that temperature. We investigate the tunnelling of mass dimension one spin-1/2 dark fermions, that are beyond the standard model and are prime candidates to the dark matter. Their interactions with the standard model matter and gauge fields are suppressed by at least one power of unification scale, being restricted just to the Higgs field and to the graviton likewise. The tunnelling method for the emission and absorption of mass dimension one particles across the event horizon of Kerr-Sen axion-dilaton black holes is shown here to provide further evidence for the universality of black hole radiation, further encompassing particles beyond the standard model.

  10. Dark Matter Hawking Radiation? Dark Spinors Tunnelling in String Theory Black Holes

    E-Print Network [OSTI]

    R. T. Cavalcanti; Roldao da Rocha

    2015-07-14

    The Hawking radiation spectrum of Kerr-Sen axion-dilaton black holes is derived, in the context of dark spinors tunnelling across the horizon. Since a black hole has a well defined temperature, it should radiate in principle all the standard model particles, similar to a black body at that temperature. We investigate the tunnelling of mass dimension one spin-1/2 dark fermions, that are beyond the standard model and are prime candidates to the dark matter. Their interactions with the standard model matter and gauge fields are suppressed by at least one power of unification scale, being restricted just to the Higgs field and to the graviton likewise. The tunnelling method for the emission and absorption of mass dimension one particles across the event horizon of Kerr-Sen axion-dilaton black holes is shown here to provide further evidence for the universality of black hole radiation, further encompassing particles beyond the standard model.

  11. The Association of Jet Production with Geometrically Thick Accretion Flows and Black Hole Rotation

    E-Print Network [OSTI]

    David L. Meier

    2000-10-12

    A model is presented in which the strongest radio-emitting jet outflows are produced in black hole systems when the accretion is a geometrically thick ($H/R \\sim 1$) inflow ({\\it e.g.}, ADAF, CDAF) {\\em and} if the black hole is rotating. For galactic black hole candidates, the model naturally accounts for the observed correlation of jet outflow with the black hole hard emission state and predicts an association of strong jets with rapid black hole rotation. When extended to the supermassive case, the model accounts for the highest radio galaxy and quasar jet powers and provides additional theoretical support for the ``spin paradigm'', which asserts that radio loud quasars are produced by Kerr holes and radio quiet ones by Schwarzschild holes. In some cases, the angular momentum and energy outflow in the jet may be large enough to significantly alter the structure of the accretion flow from that predicted by current models.

  12. Strings, higher curvature corrections, and black holes

    E-Print Network [OSTI]

    Thomas Mohaupt

    2005-12-05

    We review old and recent results on subleading contributions to black hole entropy in string theory.

  13. Physics: the big black box Mirror conjecture

    E-Print Network [OSTI]

    Cavalieri, Renzo

    Physics: the big black box Math Mirror conjecture A look into the mirror (I) an overview of Mirror Symmetry #12;Physics: the big black box Math Mirror conjecture Outline 1 Physics: the big black box 2 Math Symmetry #12;Physics: the big black box Math Mirror conjecture A slogan Mirror Symmetry is a correspondence

  14. Amer J of Potato Res (2006) 83:249-257 249 Furrow vs Hill Planting of Sprinkler-Irrigated Russet Burbank

    E-Print Network [OSTI]

    Steele, Dean D.

    2006-01-01

    -row water-harvesting effect for furrow planting compared with hill planting. The furrow-plant- ing method December 2005. ADDITIONAL KEY WORDS: furrow sowing, inter-row water harvesting, soil water content, water Surface water runoff from the hill, where potatoes are planted, to the furrow may exacerbate potato

  15. Application of carbon nanotubes as electrodes in gas discharge tubes Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599

    E-Print Network [OSTI]

    and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 W. Simendingera) and C. Debbault Raychem Co., P.O. Box 3000, Fuquay-Varina, North Carolina 27526-3000 H. Shimoda, L. Fleming, B. Stoner, University of North Carolina, Chapel Hill, North Carolina 27599 Received 15 November 1999; accepted

  16. Black hole horizons Eric Gourgoulhon

    E-Print Network [OSTI]

    Gourgoulhon, Eric

    on a black hole: up to 42% of the mass-energy mc2 of accreted matter ! NB: thermonuclear reactions release: a very deep gravitational potential well Release of potential gravitational energy by accretion

  17. Thermodynamics of regular black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Yong-Wan Kim; Young-Jai Park

    2008-09-21

    We investigate thermodynamics for a magnetically charged regular black hole (MCRBH), which comes from the action of general relativity and nonlinear electromagnetics, comparing with the Reissner-Norstr\\"om (RN) black hole in both four and two dimensions after dimensional reduction. We find that there is no thermodynamic difference between the regular and RN black holes for a fixed charge $Q$ in both dimensions. This means that the condition for either singularity or regularity at the origin of coordinate does not affect the thermodynamics of black hole. Furthermore, we describe the near-horizon AdS$_2$ thermodynamics of the MCRBH with the connection of the Jackiw-Teitelboim theory. We also identify the near-horizon entropy as the statistical entropy by using the AdS$_2$/CFT$_1$ correspondence.

  18. Black Holes and Nuclear Dynamics

    E-Print Network [OSTI]

    David Merritt

    2006-02-17

    Supermassive black holes inhabit galactic nuclei, and their presence influences in crucial ways the evolution of the stellar distribution. The low-density cores observed in bright galaxies are probably a result of black hole infall, while steep density cusps like those at the Galactic center are a result of energy exchange between stars moving in the gravitational field of the single black hole. Loss-cone dynamics are substantially more complex in galactic nuclei than in collisionally-relaxed systems like globular clusters due to the wider variety of possible geometries and orbital populations. The rate of star-black hole interactions has begun to be constrained through observations of energetic events associated with stellar tidal disruptions.

  19. Measurement of Mass and Spin of Black Holes with QPOs

    E-Print Network [OSTI]

    B. Aschenbach

    2007-10-18

    There are now four low mass X-ray binaries with black holes which show twin resonant-like HFQPOs. Similar QPOs might have been found in Sgr A*. I review the power spectral density distributions of the three X-ray flares and the six NIR flares published for Sgr A* so far, in order to look for more similarities than just the frequencies between the microquasar black holes and Sgr A*. The three X-ray flares of Sgr A* are re-analysed in an identical way and white noise probabilities from their power density distributions are given for the periods reported around 1100 s. Progress of the resonant theory using the anomalous orbital velocity effect is summarized.

  20. Seismicity Characterization and Monitoring at WESTCARB's Proposed Montezuma Hills Geologic Sequestration Site

    SciTech Connect (OSTI)

    Daley, T.M.; Haught, R.; Peterson, J.E.; Boyle, K.; Beyer, J.H.; Hutchings, L.R.

    2010-09-15

    The West Coast Regional Carbon Sequestration Partnership (WESTCARB), in collaboration with Shell Oil Co. performed site characterization for a potential small-scale pilot test of geologic sequestration of carbon dioxide (CO2). The site area, know as Montezuma Hills, is near the town of Rio Vista in northern California. During the process of injection at a CO2 storage site, there is a potential for seismic events due to slippage upon pre-existing discontinuities or due to creation of new fractures. Observations from many injection projects have shown that the energy from these events can be used for monitoring of processes in the reservoir. Typically, the events are of relatively high frequency and very low amplitude. However, there are also well documented (non-CO2-related) cases in which subsurface injection operations have resulted in ground motion felt by near-by communities. Because of the active tectonics in California (in particular the San Andreas Fault system), and the potential for public concern, WESTCARB developed and followed an induced seismicity protocol (Myer and Daley, 2010). This protocol called for assessing the natural seismicity in the area and deploying a monitoring array if necessary. In this report, we present the results of the natural seismicity assessment and the results of an initial temporary deployment of two seismometers at the Montezuma Hills site. Following the temporary array deployment, the project was suspended and the array removed in August of 2010.

  1. Influence of anticlinal growth on upper Miocene turbidite deposits, Elk Hills field, Kern County, California

    SciTech Connect (OSTI)

    Reid, S.A. (Bechtel Petroleum Operations, Inc., Tupman, CA (United States)); McJannet, G.S. (Dept. of Energy, Tupman, CA (United States))

    1991-02-01

    Growth of subsea anticlines during deposition of the upper Miocene 24Z and 26R sandstones at Elk Hills caused the development of several sinuous, lenticular sand bodies. later structural growth enhanced the trap characteristics of these sandstones. Both sandstones are in the uppermost portion of the Elk Hills Shale Member of the Monterey Formation and contain channel-fill and overbank deposits of sand-rich turbidite systems. At the onset of turbidite deposition, low relief subsea anticlines separated broad basins which progressively deepened to the northeast. Channel-fill deposits of coarse-grained sand generally followed the axes of these northwest-southeast-trending basins. At several sites, channel-fill deposits also spilled north across anticlinal axes into the next lower basins. Wide bands of overbank sand and mud were deposited at sand body edges on the flat basin floors. Midway through turbidite deposition, a period of anticlinal growth substantially raised subsea relief. Channel-fill deposits continued in narrower basins but passed north into deeper basin only around well-defined sites at the anticlines' downplunge termini. Narrow basin shapes and higher anticline relief prevented significant overbank deposition. With Pliocene to Holocene uplift of the late Miocene structural trends, stratigraphic mounding of the north-directed channel-fill deposits helped create structural domes at 24Z, 2B and Northwest Stevens pools. In sand bodies lacking significant overbank deposits prevented oil entrapment in sand bodies deposited at times of low anticlinal relief.

  2. Heat extracted from the long term flow test in the Fenton Hill HDR reservoir

    SciTech Connect (OSTI)

    Kruger, Paul; Robinson, Bruce

    1994-01-20

    A long-term flow test was carried out in the Fenton Hill HDR Phase-2 reservoir for 14 months during 1992-1993 to examine the potential for supplying thermal energy at a sustained rate as a commercial demonstration of HDR technology. The test was accomplished in several segments with changes in mean flowrate due to pumping conditions. Re-test estimates of the extractable heat content above a minimum useful temperature were based on physical evidence of the size of the Fenton Hill reservoir. A numerical model was used to estimate the extent of heat extracted during the individual flow segments from the database of measured production data during the test. For a reservoir volume of 6.5x10{sup 6}m{sup 3}, the total heat content above a minimum temperature of 150{degree} C was 1.5x10{sup 15}J. For the total test period at the three sustained mean flowrates, the integrated heat extracted was 0.088x10{sup 15}J, with no discernable temperature decline of the produced fluid. The fraction of energy extracted above the abandonment temperature was 5.9%. On the basis of a constant thermal energy extraction rate, the lifetime of the reservoir (without reservoir growth) to the abandonment temperature would be 13.3 years, in good agreement with the pre-test estimate of 15.0 years for the given reservoir volume.

  3. West Virginia University, Schedule for Geology 404: Geology Field Camp, 2012, Kammer and Lebold Sunday Monday Tuesday Wednesday Thursday Friday Saturday

    E-Print Network [OSTI]

    Kammer, Thomas

    in Little Elk Crk Canyon 2 Black Hills Exercises due 11 am Devil's Tower Trip leaves at 11:15 June 3 Student Badlands NP Ar. Black Hills State Univ. ~200 miles GPS Orientation 6:30 PM 30 Black Hills Stratigraphy Exercise 31 Black Hills Compass & Trig Review Stratigraphy Exercise 1 Black Hills Pace & Compass Exercise

  4. West Virginia University, Schedule for Geology 404: Geology Field Camp, 2011, Lebold and Blake Sunday Monday Tuesday Wednesday Thursday Friday Saturday

    E-Print Network [OSTI]

    Kammer, Thomas

    Stratigraphy Exercise 26 Black Hills Stratigraphy Exercise 27 Black Hills Pace & Compass Exercise in Little Elk Badlands NP Ar. Black Hills State Univ. ~200 miles GPS Exer. 6:30 PM 25 Black Hills Compass & Trig Review Crk Canyon 28 Black Hills Exercises due 11 am Devil's Tower Trip leaves at 11:15 May 29 Student

  5. Black Boundary Lines: Race, Class and Gender among Black Undergraduate Students

    E-Print Network [OSTI]

    Morales, Erica

    2012-01-01

    C. 1994. Behind the Mule: Race and Class in African AmericanHarlemworld: Doing Race and Class in Contemporary BlackBlue-Chip Black: Race, Class and Status in the New Black

  6. Fishing in Black Holes

    E-Print Network [OSTI]

    A. Brotas

    2006-09-01

    The coordinate system $(\\bar{x},\\bar{t})$ defined by $r = 2m + K\\bar{x}- c K \\bar{t}$ and $t=\\bar{x}/cK - 1 /cK \\int_{r_a}^r (1- 2m/r + K^2)^{1/2} (1 - 2m/r)^{-1}dr$ allow us to write the Schwarzschild metric in the form: \\[ds^2=c^2 d\\bar{t}^2 + (W^2/K^2 - 2W/K) d\\bar{x}^2 + 2c (1 + W/K) d\\bar{x}d\\bar{t} - r^2 (d\\theta^2 + cos^2\\theta d\\phi^2)\\] with $W=(1 - 2m/r + K^2)^{1/2}$, in which the coefficients' pathologies are moved to $r_K = 2m/(1+K^2)$. This new coordinate system is used to study the entrance into a black hole of a rigid line (a line in which the shock waves propagate with velocity c).

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Power Program Black Hills Energy has a performance-based incentive (PBI) for photovoltaic (PV) systems up to 100 kilowatts (kW) in capacity. In exchange for these...

  8. Mitigation action plan sale of Naval Petroleum Reserve No. 1 (Elk Hills) Kern County, California

    SciTech Connect (OSTI)

    NONE

    1998-01-01

    Naval Petroleum Reserve No. 1 (NPR-1, also called {open_quotes}Elk Hills{close_quotes}), a Federally-owned oil and gas production field in Kern County, California, was created by an Executive Order issued by President Taft on September 2, 1912. He signed another Executive Order on December 13, 1912, to establish Naval Petroleum Reserve No. 2 (NPR-2), located immediately south of NPR-1 and containing portions of the town of Taft, California. NPR-1 was not developed until the 1973-74 oil embargo demonstrated the nation`s vulnerability to oil supply interruptions. Following the embargo, Congress passed the Naval Petroleum Reserves Production Act of 1976 which directed that the reserve be explored and developed to its fall economic potential at the {open_quotes}maximum efficient rate{close_quotes} (MER) of production. Since Elk Hills began full production in 1976, it has functioned as a commercial operation, with total revenues to the Federal government through FY 1996 of $16.4 billion, compared to total exploration, development and production costs of $3.1 billion. In February 1996, Title 34 of the National Defense Authorization Act for Fiscal Year 1996 (P.L. 104-106), referred to as the Elk Hills Sales Statute, directed the Secretary of Energy to sell NPR-1 by February 10, 1998.The Secretary was also directed to study options for enhancing the value of the other Naval Petroleum and Oil Shale Reserve properties such as NPR-2, located adjacent to NPR-1 in Kern County- Naval Petroleum Reserve No. 3 (NPR-3) located in Natrona County, Wyoming; Naval Oil Shale Reserves No. 1 and No. 3 (NOSR-1 and NOSR-3) located in Garfield County, Colorado; and Naval Oil Shale Reserve No. 2 (NOSR-2) located in Uintah and Carbon Counties, Utah. The purpose of these actions was to remove the Federal government from the inherently non-Federal function of operating commercial oil fields while making sure that the public would obtain the maximum value from the reserves.

  9. LRO observations of morphology and surface roughness of volcanic cones and lobate lava flows in the Marius Hills

    E-Print Network [OSTI]

    Glotch, Timothy D.

    of the cones are found in local groupings or alignments. The wide range of volcanic features, from broad low and Head, 1977; Weitz and Head, 1999]. As such, the Marius Hills represent a significant episode of lunar.5 Ga) [McCauley, 1967a; Whitford-Stark and Head, 1977; Heather and Dunkin, 2002; Heather et al., 2003

  10. A Split-Foundry Asynchronous FPGA Benjamin Hill, Robert Karmazin, Carlos Tadeo Ortega Otero, Jonathan Tse, and Rajit Manohar

    E-Print Network [OSTI]

    Manohar, Rajit

    A Split-Foundry Asynchronous FPGA Benjamin Hill, Robert Karmazin, Carlos Tadeo Ortega Otero of a complex digital integrated circuit fabricated in both standard and split-foundry processes. Our 1- conductor foundries, which have become a global resource providing service to a wide range of customers

  11. The Fifth International Symposium on Computational Wind Engineering (CWE2010) Chapel Hill, North Carolina, USA May 23-27, 2010

    E-Print Network [OSTI]

    Chow, Fotini Katopodes

    the siting of wind turbines to predictions of flow in urban terrain for contaminant dispersion. MesoscaleThe Fifth International Symposium on Computational Wind Engineering (CWE2010) Chapel Hill, North Carolina, USA May 23-27, 2010 Accurate wind characterization in complex terrain using the immersed boundary

  12. OUR SPACES--THE MOST USED RESOURCE ON Library facilities include two main libraries--the D. H. Hill

    E-Print Network [OSTI]

    Young, R. Michael

    , the Libraries supports the innovation that is the economic engine of growth for the state. LIBRARIES FACT SHEETOUR SPACES--THE MOST USED RESOURCE ON CAMPUS Library facilities include two main libraries--the D. H. Hill Library and the James B. Hunt Jr. Library--as well as the Harrye B. Lyons Design Library

  13. Flow Maps from GONG Ring Diagrams R. Komm, J. Bolding, T. Corbard 1 , F. Hill, R. Howe, and C. Toner

    E-Print Network [OSTI]

    Corbard, Thierry

    Flow Maps from GONG Ring Diagrams R. Komm, J. Bolding, T. Corbard 1 , F. Hill, R. Howe, and C d'Azur, F­06304 Nice Cedex 4 Introduction y We show first results from GONG++ observations covering Carrington rotation 1988 (2002/3/30 ­ 2002/4/26) analyzed with a ring­diagram technique as part of the GONG

  14. Water content of 1997 vulcanian pumices at Soufriere Hills Volcano (Montserrat) and implications on pre-eruptive conduit conditions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Water content of 1997 vulcanian pumices at Soufriere Hills Volcano (Montserrat) and implications of the eruptive products. We used quantitative analysis of water content in residual glasses (matrix glass. To better link water content to structural level, we performed new water solubility experiments at low

  15. CO2 percolation experiment through chlorite/zeolite-rich sandstone (Pretty Hill Formation Otway BasinAustralia)

    E-Print Network [OSTI]

    Cattin, Rodolphe

    . After injecting the CO2 as a supercritical fluid at depth, a certain amount will slowly dissolve of the dissolved CO2) and even- tually the upward flow of supercritical or gaseous CO2 accompanied by caprockCO2 percolation experiment through chlorite/zeolite-rich sandstone (Pretty Hill Formation ­ Otway

  16. FEASIBILITY OF WIND TO SERVE UPPER SKAGIT'S BOW HILL TRIBAL LANDS AND FEASIBILITY UPDATE FOR RESIDENTIAL RENEWABLE ENERGY.

    SciTech Connect (OSTI)

    RICH, LAUREN

    2013-09-30

    A two year wind resource assessment was conducted to determine the feasibility of developing a community scale wind generation system for the Upper Skagit Indian Tribe?s Bow Hill land base, and the project researched residential wind resource technologies to determine the feasibility of contributing renewable wind resource to the mix of energy options for our single and multi-family residential units.

  17. Black hole mimickers: Regular versus singular behavior

    SciTech Connect (OSTI)

    Lemos, Jose P. S.; Zaslavskii, Oleg B.

    2008-07-15

    Black hole mimickers are possible alternatives to black holes; they would look observationally almost like black holes but would have no horizon. The properties in the near-horizon region where gravity is strong can be quite different for both types of objects, but at infinity it could be difficult to discern black holes from their mimickers. To disentangle this possible confusion, we examine the near-horizon properties, and their connection with far away asymptotic properties, of some candidates to black mimickers. We study spherically symmetric uncharged or charged but nonextremal objects, as well as spherically symmetric charged extremal objects. Within the uncharged or charged but nonextremal black hole mimickers, we study nonextremal {epsilon}-wormholes on the threshold of the formation of an event horizon, of which a subclass are called black foils, and gravastars. Within the charged extremal black hole mimickers we study extremal {epsilon}-wormholes on the threshold of the formation of an event horizon, quasi-black holes, and wormholes on the basis of quasi-black holes from Bonnor stars. We elucidate whether or not the objects belonging to these two classes remain regular in the near-horizon limit. The requirement of full regularity, i.e., finite curvature and absence of naked behavior, up to an arbitrary neighborhood of the gravitational radius of the object enables one to rule out potential mimickers in most of the cases. A list ranking the best black hole mimickers up to the worst, both nonextremal and extremal, is as follows: wormholes on the basis of extremal black holes or on the basis of quasi-black holes, quasi-black holes, wormholes on the basis of nonextremal black holes (black foils), and gravastars. Since in observational astrophysics it is difficult to find extremal configurations (the best mimickers in the ranking), whereas nonextremal configurations are really bad mimickers, the task of distinguishing black holes from their mimickers seems to be less difficult than one could think of it.

  18. Naval Petroleum Reserve No. 1 (Elk Hills): Supplemental environmental impact statement. Record of decision

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    Pursuant to the Council on Environmental Quality regulations, which implement the procedural provisions of the National Environmental Policy Act, and the US Department of Energy National Environmental Policy Act regulations, the Department of Energy, Office of Fossil Energy, is issuing a Record of Decision on the continued operation of Naval Petroleum Reserve No. 1, Kern County, California. The Department of Energy has decided to continue current operations at Naval Petroleum Reserve No. 1 and implement additional well drilling, facility development projects and other activities necessary for continued production of Naval Petroleum Reserve No. 1 in accordance with the requirements of the Naval Petroleum Reserves Production Act of 1976. The final Supplemental Environmental Impact Statement, entitled ``Petroleum Production at Maximum Efficient Rate, Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California (DOE/SEIS-0158),`` was released on September 3, 1993.

  19. $\\mu$-tempered metadynamics: Artifact independent convergence times for wide hills

    E-Print Network [OSTI]

    Dickson, Bradley M

    2015-01-01

    Recent analysis of well-tempered metadynamics (WTmetaD) showed that it converges without mollification artifacts in the bias potential. Here we explore how metadynamics heals mollification artifacts, how healing impacts convergence time, and whether alternative temperings may be used to improve efficiency. We introduce "$\\mu$-tempered" metadynamics as a simple tempering scheme, inspired by a related mollified adaptive biasing potential (mABP), that results in artifact independent convergence of the free energy estimate. We use a toy model to examine the role of artifacts in WTmetaD and solvated alanine dipeptide to compare the well-tempered and $\\mu$-tempered frameworks demonstrating fast convergence for hill widths as large as $60^{\\circ}$ for $\\mu$TmetaD.

  20. Technical Safety Appraisal of the Naval Petroleum Reserve No. 1, Elk Hills, California

    SciTech Connect (OSTI)

    Not Available

    1990-02-01

    This report presents the results of a focused Technical Safety Appraisal (TSA) of the Naval Petroleum Reserve No. 1 (NPR-1), Elk Hills, California, conducted during November 27 through December 8, 1989. The Department of Energy (DOE) program organization responsible for NPR-1 is the Assistant Secretary for Fossil Energy (FE); the responsible Field Office is the Naval Petroleum Reserves California (NPRC) Office. This appraisal is an application of the program that was initiated in 1985 to strengthen the DOE Environment, Safety and Health Program. The appraisal was conducted by the staff of the DOE Assistant Secretary for Environment, Safety and Health (EH), Office of Safety Appraisals, with support from experts in specific appraisal areas, including a number from the petroleum industry, and a liaison representative from FE. The Senior EH Manager for the appraisal was Mr. Robert Barber, Acting Director, Office of Compliance Programs; the Team Leader was Dr. Owen Thompson, Office of Safety Appraisals.

  1. Start-up operations at the Fenton Hill HDR Pilot Plant

    SciTech Connect (OSTI)

    Ponden, R.F.

    1991-01-01

    With the completion of the surface test facilities at Fenton Hill, the Hot Dry Rock (HDR) Geothermal Energy Program at Los Alamos is moving steadily into the next stage of development. Start-up operations of the surface facilities have begun in preparation for testing the Phase II reservoir and the initial steady-state phase of operations. A test program has been developed that will entail a number of operational strategies to characterize the thermal performance of the reservoir. The surface facilities have been designed to assure high reliability while providing the flexibility and control to support the different operating modes. This paper presents a review of the system design and provides a discussion of the preliminary results of plant operations and equipment performance.

  2. Start-Up Operations at the Fenton Hill HDR Pilot Plant

    SciTech Connect (OSTI)

    Ponden, Raymond F.

    1992-03-24

    With the completion of the surface test facilities at Fenton Hill, the Hot Dry Rock (HDR) Geothermal Energy Program at Los Alamos is moving steadily into the next stage of development. Start-up operations of the surface facilities have begun in preparation for testing the Phase II reservoir and the initial steady-state phase of operations. A test program has been developed that will entail a number of operational strategies to characterize the thermal performance of the reservoir. The surface facilities have been designed to assure high reliability while providing the flexibility and control to support the different operating modes. This paper presents a review of the system design and provides a discussion of the preliminary results of plant operations and equipment performance.

  3. International black tea market integration and price discovery 

    E-Print Network [OSTI]

    Dharmasena, Kalu Arachchillage Senarath Dhananjaya Bandara

    2004-09-30

    In this thesis we study three basic issues related to international black tea markets: Are black tea markets integrated? Where is the price of black tea discovered? Are there leaders and followers in black tea markets? We ...

  4. Bulk emission of scalars by a rotating black hole

    E-Print Network [OSTI]

    M. Casals; S. R. Dolan; P. Kanti; E. Winstanley

    2008-07-17

    We study in detail the scalar-field Hawking radiation emitted into the bulk by a higher-dimensional, rotating black hole. We numerically compute the angular eigenvalues, and solve the radial equation of motion in order to find transmission factors. The latter are found to be enhanced by the angular momentum of the black hole, and to exhibit the well-known effect of superradiance. The corresponding power spectra for scalar fields show an enhancement with the number of dimensions, as in the non-rotating case. We compute the total mass loss rate of the black hole for a variety of black-hole angular momenta and bulk dimensions, and find that, in all cases, the bulk emission remains significantly smaller than the brane emission. The angular-momentum loss rate is also computed and found to have a smaller value in the bulk than on the brane. We present accurate bulk-to-brane emission ratios for a range of scenarios.

  5. Crosshole EM for oil field characterization and EOR monitoring: Field examples from Lost Hills, California

    SciTech Connect (OSTI)

    Wilt, M.; Schenkel, C.; Wratcher, M.; Lambert, I.; Torres-Verdin, C.; Tseng H.W.

    1996-07-16

    A steamflood recently initiated by Mobil Development and Production U.S. at the Lost Hills No 3 oil field in California is notable for its shallow depth and the application of electromagnetic (EM) geophysical techniques to monitor the subsurface steam flow. Steam was injected into three stacked eastward-dipping unconsolidated oil sands at depths from 60 to 120 m; the plume is expected to develop as an ellipsoid aligned with the regional northwest-southeast strike. Because of the shallow depth of the sands and the high viscosity of the heavy oil, it is important to track the steam in the unconsolidated sediments for both economic and safety reasons. Crosshole and surface-to-borehole electromagnetic imaging were applied for reservoir characterization and steamflood monitoring. The crosshole EM data were collected to map the interwell distribution of the high-resistivity oil sands and to track the injected steam and hot water. Measurements were made in two fiberglass-cased observation wells straddling the steam injector on a northeast-southwest profile. Field data were collected before the steam drive, to map the distribution of the oil sands, and then 6 and 10 months after steam was injected, to monitor the expansion of the steam chest. Resistivity images derived from the collected data clearly delineated the distribution and dipping structure of the target oil sands. Difference images from data collected before and during steamflooding indicate that the steam chest has developed only in the middle and lower oil sands, and it has preferentially migrated westward in the middle oil sand and eastward in the deeper sand. Surface-to-borehole field data sets at Lost Hills were responsive to the large-scale subsurface structure but insufficiently sensitive to model steam chest development in the middle and lower oil sands. As the steam chest develops further, these data will be of more use for process monitoring.

  6. Dune-dammed lakes of the Nebraska Sand Hills: Geologic setting and paleoclimatic implications

    SciTech Connect (OSTI)

    Loope, D.B.; Swinehart, J.B. (Univ. of Nebraska, Lincoln, NE (United States))

    1992-01-01

    Within the western half of this grass-stabilized dunefield, about 1,000 interdune lakes are grouped into two clusters here named the Blue and Birdwood lake basins. In the lake basins, those parts of the valley not filled by dune sand are occupied by modern lakes and Holocene lake sediments. The Blue Creek dam is mounded transverse to flow; spill-over of the lake basin takes place over bedrock on the east side of the dam when lake level is 2 m higher than present. The permeability of dune sand prevents massive overflow, and thereby contributes to the integrity and longevity of the dam. Preserved lake sediments in the basin indicate that Blue Creek was obstructed prior to 13,000 yr BP, probably during glacial maximum (18,000 yr BP). Extensive peats dated at 1,500-1,000 yr BP lie directly on fluvial sand and gravel along the Calamus River, a stream that presently discharges a nearly constant 350 cfs. These sediments indicate blockage of streams also took place when linear dunes were active in the eastern Sand Hills in Late Holocene time. With the onset of an arid episode, dunes forming an interfluves curtail the severity of runoff events. As the regional water table drops, drainages go dry and dunes move uncontested into blocking positions. Although drainages of the eastern Sand Hills appear to have repeatedly broken through sand-blocked channels, the Blue and Birdwood lake basins are still blocked by Late Pleistocene dune dams. The repeated episodes of stream blockage and interbedded lake sediments and dune sands behind the extant dams record several strong fluctuations in Holocene climate. Recently proposed climatic models indicate that the northward flow of warm, moist air from the Gulf of Mexico is enhanced when the Gulf's surface temperature is low and the Bermuda high is intensified and in a western position. When the Bermuda high moves eastward, the core of the North American continent becomes desiccated.

  7. Significant results of deep drilling at Elk Hills, Kern County, California

    SciTech Connect (OSTI)

    Fishburn, M.D. (Dept. of Energy, Elk Hills, CA (USA))

    1990-05-01

    Naval Petroleum Reserve 1 (Elk Hills) is located in the southwestern San Joaquin basin one of the most prolific oil-producing areas in the US. Although the basin is in a mature development stage, the presence of favorable structures and high-quality source rocks continue to make the deeper parts of the basin, specifically Elk Hills, an inviting exploration target. Of the three deep tests drilled by the US Department of Energy since 1976, significant geologic results were achieved in two wells. Well 987-25R reached low-grade metamorphic rock at 18,761 ft after penetrating over 800 ft of salt below the Eocene Point of Rocks Sandstone. In well 934-29R, the deepest well in California, Cretaceous sedimentary rocks were encountered at a total depth of 24,426 ft. In well 934-29R several major sand units were penetrated most of which encountered significant gas shows. Minor amounts of gas with no water were produced below 22,000 ft. In addition, production tests at 17,000 ft produced 46{degree} API gravity oil. Geochemical analysis of cores and cuttings indicated that the potential for hydrocarbon generation exists throughout the well and is significant because the possibility of hydrocarbon production exists at a greater depth than previously expected. A vertical seismic profile in the well indicated that basement at this location is at approximately 25,500 ft. Successful drilling of well 934-29R was attributed to the use of an oil-based mud system. The well took 917 days to drill, including 9,560 rotating hr with 134 bits. Bottom-hole temperature was 431{degree}F and pressures were approximately 18,000 psi. The high overburden pressure at 24,000 ft created drilling problems that ultimately led to the termination of drilling at 24,426 ft.

  8. Energy on black hole spacetimes

    E-Print Network [OSTI]

    Alejandro Corichi

    2012-07-18

    We consider the issue of defining energy for test particles on a background black hole spacetime. We revisit the different notions of energy as defined by different observers. The existence of a time-like isometry allows for the notion of a total conserved energy to be well defined, and subsequently the notion of a gravitational potential energy is also meaningful. We then consider the situation in which the test particle is adsorbed by the black hole, and analyze the energetics in detail. In particular, we show that the notion of horizon energy es defined by the isolated horizons formalism provides a satisfactory notion of energy compatible with the particle's conserved energy. As another example, we comment a recent proposal to define energy of the black hole as seen by an observer at rest. This account is intended to be pedagogical and is aimed at the level of and as a complement to the standard textbooks on the subject.

  9. Heat Engine of black holes

    E-Print Network [OSTI]

    J. Sadeghi; Kh. Jafarzade

    2015-06-23

    As we know, the cosmological constant in different theories of gravity acts as a thermodynamics variable. The cosmological constant exists in different actions of gravity and also appears in the solution of such theories. These lead to use the black hole as a heat engines. Also, there are two values for the cosmological constant as positive and negative values. The case of negative cosmological constant supplies a natural realization of these engines in terms of the field theory description of the fluids to which they are holographically dual. In this paper, we are going to define heat engines for two different black holes as Dyonic BH and Kerr BH. And also, we calculate maximum efficiency for two black holes.

  10. Charged rotating dilaton black strings

    SciTech Connect (OSTI)

    Dehghani, M.H.; Farhangkhah, N.

    2005-02-15

    In this paper we, first, present a class of charged rotating solutions in four-dimensional Einstein-Maxwell-dilaton gravity with zero and Liouville-type potentials. We find that these solutions can present a black hole/string with two regular horizons, an extreme black hole or a naked singularity provided the parameters of the solutions are chosen suitable. We also compute the conserved and thermodynamic quantities, and show that they satisfy the first law of thermodynamics. Second, we obtain the (n+1)-dimensional rotating solutions in Einstein-dilaton gravity with Liouville-type potential. We find that these solutions can present black branes, naked singularities or spacetimes with cosmological horizon if one chooses the parameters of the solutions correctly. Again, we find that the thermodynamic quantities of these solutions satisfy the first law of thermodynamics.

  11. Quantum Criticality and Black Holes

    ScienceCinema (OSTI)

    Sachdev, Subir [Harvard University, Cambridge, Massachusetts, United States

    2009-09-01

    I will describe the behavior of a variety of condensed matter systems in the vicinity of zero temperature quantum phase transitions. There is a remarkable analogy between the hydrodynamics of such systems and the quantum theory of black holes. I will show how insights from this analogy have shed light on recent experiments on the cuprate high temperature superconductors. Studies of new materials and trapped ultracold atoms are yielding new quantum phases, with novel forms of quantum entanglement. Some materials are of technological importance: e.g. high temperature superconductors. Exact solutions via black hole mapping have yielded first exact results for transport coefficients in interacting many-body systems, and were valuable in determining general structure of hydrodynamics. Theory of VBS order and Nernst effect in cuprates. Tabletop 'laboratories for the entire universe': quantum mechanics of black holes, quark-gluon plasma, neutrons stars, and big-bang physics.

  12. Radiation transport around Kerr black holes

    E-Print Network [OSTI]

    Schnittman, Jeremy David

    2005-01-01

    This Thesis describes the basic framework of a relativistic ray-tracing code for analyzing accretion processes around Kerr black holes. We begin in Chapter 1 with a brief historical summary of the major advances in black ...

  13. Does phantom energy produce black hole?

    E-Print Network [OSTI]

    F. Rahaman; A. Ghosh; M. Kalam

    2006-12-23

    We have found an exact solution of spherically symmetrical Einstein equations describing a black hole with a special type phantom energy source. It is surprising to note that our solution is analogous to Reissner-Nordstr\\"{o}m black hole.

  14. Introduction to Black Hole Evaporation

    E-Print Network [OSTI]

    Pierre-Henry Lambert

    2014-01-16

    These lecture notes are an elementary and pedagogical introduction to the black hole evaporation, based on a lecture given by the author at the Ninth Modave Summer School in Mathematical Physics and are intended for PhD students. First, quantum field theory in curved spacetime is studied and tools needed for the remaining of the course are introduced. Then, quantum field theory in Rindler spacetime in 1+1 dimensions and in the spacetime of a spherically collapsing star are considered, leading to Unruh and Hawking effects, respectively. Finally, some consequences such as thermodynamics of black holes and information loss paradox are discussed.

  15. 4d neutral dilatonic black holes and (4+p) dimensional nondilatonic black p-branes

    E-Print Network [OSTI]

    J. R. Morris

    2000-01-11

    It is shown that, in contrast to the case of extreme 4d dilatonic black holes, 4d neutral dilatonic black holes with horizon singularities can not be interpreted as nonsingular nondilatonic black p-branes in (4+p) dimensions, regardless of the number of extra dimensions p. That is, extra dimensions do not remove naked singularities of 4d neutral dilatonic black holes.

  16. Classical and thermodynamic stability of black holes

    E-Print Network [OSTI]

    Ricardo Monteiro

    2010-06-28

    We consider the stability of black holes within both classical general relativity and the semiclassical thermodynamic description. In particular, we study linearised perturbations and their contribution to the gravitational partition function, addressing technical issues for charged (Reissner-Nordstrom) and rotating (Kerr-AdS) black holes. Exploring the connection between classical and thermodynamic stability, we find classical instabilities of Myers-Perry black holes and bifurcations to new black hole families.

  17. Will black holes eventually engulf the universe?

    E-Print Network [OSTI]

    Prado Martin-Moruno; Jose A. Jimenez Madrid; Pedro F. Gonzalez-Diaz

    2006-03-28

    The Babichev-Dokuchaev-Eroshenko model for the accretion of dark energy onto black holes has been extended to deal with black holes with non-static metrics. The possibility that for an asymptotic observer a black hole with large mass will rapidly increase and eventually engulf the Universe at a finite time in the future has been studied by using reasonable values for astronomical parameters. It is concluded that such a phenomenon is forbidden for all black holes in quintessential cosmological models.

  18. Hawking Emission and Black Hole Thermodynamics

    E-Print Network [OSTI]

    Don N. Page

    2006-12-18

    A brief review of Hawking radiation and black hole thermodynamics is given, based largely upon hep-th/0409024.

  19. "Meissner effect" and Blandford-Znajek mechanism in conductive black hole magnetospheres

    E-Print Network [OSTI]

    S. S. Komissarov; J. C. McKinney

    2007-02-14

    The expulsion of axisymmetric magnetic field from the event horizons of rapidly rotating black holes has been seen as an astrophysically important effect that may significantly reduce or even nullify the efficiency of the Blandford-Znajek mechanism of powering the relativistic jets in Active Galactic Nuclei and Gamma Ray Bursts. However, this Meissner-like effect is seen in vacuum solutions of black hole electrodynamics whereas the Blandford-Znajek mechanism is concerned with plasma-filled magnetospheres. In this paper we argue that conductivity dramatically changes the properties of axisymmetric electromagnetic solutions -- even for a maximally rotating Kerr black hole the magnetic field is pulled inside the event horizon. Moreover, the conditions resulting in outgoing Poynting flux in the Blandford-Znajek mechanism exist not on the event horizon but everywhere within the black hole ergosphere. Thus, the Meissner effect is unlikely to be of interest in astrophysics of black holes, at least not in the way this has been suggested so far. These conclusions are supported by the results of time-dependent numerical simulations with three different computer codes. The test problems involve black holes with the rotation parameter ranging from $a=0.999$ to $a=1$. The pure electrodynamic simulations deal with the structure of conductive magnetospheres of black holes placed in a uniform-at-infinity magnetic field (Wald's problem) and the magnetohydrodynamic simulations are used to study the magnetospheres arising in the problem of disk accretion.

  20. FY 2005/06 Accomplishment CHP System Supplies Emergency Power at

    E-Print Network [OSTI]

    Pennycook, Steve

    ComfortTM 240 integrated combined heat and power (CHP) system at the East Hartford High School (EHHS). Technology In addition to regularly providing power, cooling, and heating to the school, the UTC Power's PureFY 2005/06 Accomplishment CHP System Supplies Emergency Power at East Hartford High School "Black

  1. Squeezars: Tidally powered stars orbiting a massive black hole

    E-Print Network [OSTI]

    Tal Alexander; Mark Morris

    2003-05-05

    We propose that there exists a class of transient sources, "squeezars", which are stars caught in highly eccentric orbits around a massive (mpowered by tidal interactions with the MBH. Their existence follows from the presence of a mass sink, the MBH, in the galactic center, which drives a flow of stars into nearly radial orbits to replace those it has destroyed. We consider two limits for the stellar response to tidal heating: surface heating with radiative cooling ("hot squeezars") and bulk heating with adiabatic expansion ("cold squeezars"), and calculate the evolution of the squeezar orbit, size, luminosity and effective temperature. The squeezar formation rate is only ~0.05 that of tidal disruption flares, but squeezar lifetimes are many orders of magnitude longer, and so future observations of squeezars in nearby galaxies can probe the tidal process that feeds MBHs and the effects of extreme tides on stars. The mean number of squeezars orbiting the Galactic MBH is estimated at 0.1-1.

  2. Scattering by regular black holes: Planar massless scalar waves impinging upon a Bardeen black hole

    E-Print Network [OSTI]

    Macedo, Caio F B; Crispino, Luís C B

    2015-01-01

    Singularities are common features of general relativity black holes. However, within general relativity, one can construct black holes that present no singularities. These regular black hole solutions can be achieved by, for instance, relaxing one of the energy conditions on the stress energy tensor sourcing the black hole. Some regular black hole solutions were found in the context of non-linear electrodynamics, the Bardeen black hole being the first one proposed. In this paper, we consider a planar massless scalar wave scattered by a Bardeen black hole. We compare the scattering cross section computed using a partial-wave description with the classical geodesic scattering of a stream of null geodesics, as well as with the semi-classical glory approximation. We obtain that, for some values of the corresponding black hole charge, the scattering cross section of a Bardeen black hole has a similar interference pattern of a Reissner-Nordstr\\"om black hole.

  3. Scattering by regular black holes: Planar massless scalar waves impinging upon a Bardeen black hole

    E-Print Network [OSTI]

    Caio F. B. Macedo; Ednilton S. de Oliveira; Luís C. B. Crispino

    2015-06-26

    Singularities are common features of general relativity black holes. However, within general relativity, one can construct black holes that present no singularities. These regular black hole solutions can be achieved by, for instance, relaxing one of the energy conditions on the stress energy tensor sourcing the black hole. Some regular black hole solutions were found in the context of non-linear electrodynamics, the Bardeen black hole being the first one proposed. In this paper, we consider a planar massless scalar wave scattered by a Bardeen black hole. We compare the scattering cross section computed using a partial-wave description with the classical geodesic scattering of a stream of null geodesics, as well as with the semi-classical glory approximation. We obtain that, for some values of the corresponding black hole charge, the scattering cross section of a Bardeen black hole has a similar interference pattern of a Reissner-Nordstr\\"om black hole.

  4. New approaches to black holes Eric Gourgoulhon

    E-Print Network [OSTI]

    Gourgoulhon, Eric

    References Eric Gourgoulhon (LUTH) New approaches to black holes Okinawa Nat. Col. Tech., 17 Aug 2008 2 / 36 Gourgoulhon (LUTH) New approaches to black holes Okinawa Nat. Col. Tech., 17 Aug 2008 3 / 36 #12;Local (2006)] Eric Gourgoulhon (LUTH) New approaches to black holes Okinawa Nat. Col. Tech., 17 Aug 2008 4

  5. Perovskite Power

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

    Perovskite Power 1663 Los Alamos science and technology magazine Latest Issue:October 2015 past issues All Issues submit Perovskite Power A breakthrough in the production of...

  6. Causal extraction of black hole rotational energy by various kinds of electromagnetic fields

    SciTech Connect (OSTI)

    Koide, Shinji; Baba, Tamon

    2014-09-10

    Recent general relativistic magnetohydrodynamics (MHD) simulations have suggested that relativistic jets from active galactic nuclei (AGNs) have been powered by the rotational energy of central black holes. Some mechanisms for extraction of black hole rotational energy have been proposed, like the Penrose process, Blandford-Znajek mechanism, MHD Penrose process, and superradiance. The Blandford-Znajek mechanism is the most promising mechanism for the engines of the relativistic jets from AGNs. However, an intuitive interpretation of this mechanism with causality is not yet clarified, while the Penrose process has a clear interpretation for causal energy extraction from a black hole with negative energy. In this paper, we present a formula to build physical intuition so that in the Blandford-Znajek mechanism, as well as in other electromagnetic processes, negative electromagnetic energy plays an important role in causal extraction of the rotational energy of black holes.

  7. From Pinholes to Black Holes

    SciTech Connect (OSTI)

    Fenimore, Edward E.

    2014-10-06

    Pinhole photography has made major contributions to astrophysics through the use of “coded apertures”. Coded apertures were instrumental in locating gamma-ray bursts and proving that they originate in faraway galaxies, some from the birth of black holes from the first stars that formed just after the big bang.

  8. Black Holes in Galaxy Mergers: Evolution of Quasars

    E-Print Network [OSTI]

    Philip F. Hopkins; Lars Hernquist; Thomas J. Cox; Tiziana Di Matteo; Paul Martini; Brant Robertson; Volker Springel

    2005-06-13

    Based on numerical simulations of gas-rich galaxy mergers, we discuss a model in which quasar activity is tied to the self-regulated growth of supermassive black holes in galaxies. Nuclear inflow of gas attending a galaxy collision triggers a starburst and feeds black hole growth, but for most of the duration of the starburst, the black hole is heavily obscured by surrounding gas and dust which limits the visibility of the quasar, especially at optical and UV wavelengths. Eventually, feedback energy from accretion heats the gas and expels it in a powerful wind, leaving a 'dead quasar'. Between buried and dead phases there is a window during which the galaxy would be seen as a luminous quasar. Because the black hole mass, radiative output, and distribution of obscuring gas and dust all evolve strongly with time, the duration of this phase of observable quasar activity depends on both the waveband and imposed luminosity threshold. We determine the observed and intrinsic lifetimes as a function of luminosity and frequency, and calculate observable lifetimes ~10 Myr for bright quasars in the optical B-band, in good agreement with empirical estimates and much smaller than the black hole growth timescales ~100 Myr, naturally producing a substantial population of 'buried' quasars. However, observed and intrinsic energy outputs converge in the IR and hard X-ray bands as attenuation becomes weaker and chances of observation greatly increase. We obtain the distribution of column densities along sightlines in which the quasar is seen above a given luminosity, and find that our result agrees remarkably well with observed estimates of the column density distribution from the SDSS for appropriate luminosity thresholds. (Abridged)

  9. Extremal Higher Spin Black Holes

    E-Print Network [OSTI]

    Máximo Bañados; Alejandra Castro; Alberto Faraggi; Juan I. Jottar

    2015-11-30

    The gauge sector of three-dimensional higher spin gravities can be formulated as a Chern-Simons theory. In this context, a higher spin black hole corresponds to a flat connection with suitable holonomy (smoothness) conditions which are consistent with the properties of a generalized thermal ensemble. Building on these ideas, we discuss a definition of black hole extremality which is appropriate to the topological character of 3d higher spin theories. Our definition can be phrased in terms of the Jordan class of the holonomy around a non-contractible (angular) cycle, and we show that it is compatible with the zero-temperature limit of smooth black hole solutions. While this notion of extremality does not require nor implies the existence of supersymmetry, we exemplify its consequences in the context of sl(3|2) + sl(3|2) Chern-Simons theory. Remarkably, while as usual not all extremal solutions preserve supersymmetries, we find that the higher spin setup allows for non-extremal supersymmetric black hole solutions as well. Furthermore, we discuss our results from the perspective of the holographic duality between sl(3|2) + sl(3|2) Chern-Simons theory and two-dimensional CFTs with W_{(3|2)} symmetry, the simplest higher spin extension of the N=2 super-Virasoro algebra. In particular, we compute W_{(3|2)} BPS bounds at the full quantum level, and relate their semiclassical limit to extremal black hole or conical defect solutions in the 3d bulk. Along the way, we discuss the role of the spectral flow automorphism and provide a conjecture for the form of the semiclassical BPS bounds in general N=2 two-dimensional CFTs with extended symmetry algebras.

  10. Black hole microstates in AdS

    E-Print Network [OSTI]

    Shaghoulian, Edgar

    2015-01-01

    We extend a recently derived higher-dimensional Cardy formula to include angular momenta, which we use to obtain the Bekensten-Hawking entropy of AdS black branes, compactified rotating branes, and large Schwarzschild/Kerr black holes. This is the natural generalization of Strominger's microscopic derivation of the BTZ black hole entropy to higher dimensions. We propose an extension to include $U(1)$ charge, which agrees with the Bekenstein-Hawking entropy of large Reissner-Nordstrom/Kerr-Newman black holes at high temperature. We extend the results to arbitrary hyperscaling violation exponent (this captures the case of black D$p$-branes as a subclass) and reproduce logarithmic corrections.

  11. Proceedings of the 2013 Winter Simulation Conference R. Pasupathy, S.-H. Kim, A. Tolk, R. Hill, and M. E. Kuhl, eds.

    E-Print Network [OSTI]

    Whitt, Ward

    Proceedings of the 2013 Winter Simulation Conference R. Pasupathy, S.-H. Kim, A. Tolk, R. Hill University New York, NY 10027, USA Ward Whitt Industrial Engineering and Operations Research Columbia

  12. Australian Journal of Earth Sciences (1984) 31, 403-426. The structural evolution of the Fyfe Hills-Khmara Bay region,

    E-Print Network [OSTI]

    Sandiford, Mike

    1984-01-01

    Australian Journal of Earth Sciences (1984) 31, 403-426. The structural evolution of the Fyfe Hills of 403 #12;404 M. SANDIFORD AND C. 1. L. WILSON ~s Strike and dip of composltlonal layering -- Trend

  13. Electric power from offshore wind via synoptic-scale interconnection

    E-Print Network [OSTI]

    Firestone, Jeremy

    Electric power from offshore wind via synoptic-scale interconnection Willett Kemptona,1 , Felipe M regional estimate, Kempton et al. (2) calculated that two-thirds of the offshore wind power off the U in the U.S. Atlantic region is already underway. Fig. 1 shows as black squares offshore wind developments

  14. Microcracks, residual strain, velocity, and elastic properties of igneous rocks from a geothermal test-hole at Fenton Hill, New Mexico 

    E-Print Network [OSTI]

    Ciampa, John David

    1980-01-01

    MICROCRACKS, RESIDUAL STRAIN, VELOCITY, AND ELASTIC PROPERTIES OF IGNEOUS ROCKS FRCM A GEOTHERMAL TEST-HOLE AT FENTON HILL, NEW MEXICO A Thesis JOHN DAVID CIAMPA Submitted to the Graduate College of Texas A8M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1980 Major Subject: Geophysics MICROCRACKS, RESIDUAL STRAIN, VELOCITY, AND ELASTIC PROPERTIES OF IGNEOUS ROCKS FROM A GEOTHERMAL TEST-HOLE AT FENTON HILL, NEW MEXICO A Thesis by JOHN DAVID CIAMPA...

  15. Western Shallow Oil Zone, Elk Hills Field, Kern County, California: General reservoir study, Appendix 4, Fourth Wilhelm sand

    SciTech Connect (OSTI)

    Carey, K.B.

    1987-09-01

    The general Reservoir Study of the Western Shallow Oil Zone was prepared by Evans, Carey and Crozier as Task Assignment 009 with the United States Department of Energy. This study, Appendix IV, addresses the Fourth Wilhelm Sand and its sub units and pools. Basic pressure, production and assorted technical data were provided by the US Department of Energy staff at Elk Hills. Basic pressure production and assorted technical data were provided by the US Department of Energy staff at Elk Hills. These data were accepted as furnished with no attempt being made by Evans, Carey and Crozier for independent verification. This study has identified the petrophysical properties and the past productive performance of the reservoir. Primary reserves have been determined and general means of enhancing future recovery have been suggested. It is hoped that this volume can now additionally serve as a take off point for exploitation engineers to develop specific programs toward the end. 12 figs., 9 tabs.

  16. Fracture-coating minerals in the Topopah Spring Member and upper tuff of Calico Hills from drill hole J-13

    SciTech Connect (OSTI)

    Carlos, B.

    1989-02-01

    Fracture-lining minerals from drill core in the Topopah Spring Member of the Paintbrush Tuff and the tuff of Calico Hills from water well J-13 were studied to identify the differences between these minerals and those seen in drill core USW G-4. In USW G-4 the static water level (SWL) occurs below the tuff of Calico Hills, but in J-13 the water table is fairly high in the Topopah Spring Member. There are some significant differences in fracture minerals between these two holes. In USW G-4 mordenite is a common fracture-lining mineral in the Topopah Spring Member, increasing in abundance with depth. Euhedral heulandite >0.1 mm in length occurs in fractures for about 20 m above the lower vitrophyre. In J-13, where the same stratigraphic intervals are below the water table, mordenite is uncommon and euhedral heulandite is not seen. The most abundant fracture coating in the Topopah Spring Member in J-13 is drusy quartz, which is totally absent in this interval in USW G-4. Though similar in appearance, the coatings in the vitrophyre have different mineralogy in the two holes. In USW G-4 the coatings are extremely fine grained heulandite and smectite. In J-13 the coatings are fine-grained heulandite, chabazite, and alkali feldspar. Chabazite has not been identified from any other hole in the Yucca Mountain area. Fractures in the tuff of Calico Hills have similar coatings in core from both holes. In J-13, as in USW G-4, the tuff matrix of the Topopah Spring Member is welded and devitrified and that of the tuff of Calico Hills is zeolitic. 11 refs., 10 figs., 5 tabs.

  17. Radio Jets in Galaxies with Actively Accreting Black Holes: new insights from the SDSS

    E-Print Network [OSTI]

    Guinevere Kauffmann; Timothy M. Heckman; Philip N. Best

    2007-09-19

    The majority of nearby radio-loud AGN are found in massive, old elliptical galaxies with weak emission lines. At high redshifts,however, most known radio AGN have strong emission lines. In this paper, we examine a subset of radio AGN with emission lines selected from the Sloan Digital Sky Survey. The probability for a nearby radio AGN to have emission lines is a strongly decreasing function of galaxy mass and an increasing function of radio luminosity above 10^25 W/Hz. Emission line and radio luminosities are correlated, but with large dispersion. At a given radio power, AGN with small black holes have higher [OIII] luminosities (which we interpret as higher accretion rates) than AGN with big black holes. However, if we scale both radio and emission line luminosities by the black hole mass, we find a correlation between normalized radio power and accretion rate in Eddington units that is independent of black hole mass. There is also a clear correlation between normalized radio power and the age of the stellar population in the galaxy. Present-day AGN with the highest normalized radio powers are confined to galaxies with small black holes. High-redshift, high radio-luminosity AGN could be explained if big black holes were similarly active at earlier cosmic epochs. To investigate why only a small fraction of emission line AGN become radio loud, we create matched samples of radio-loud and radio-quiet AGN and compare their host galaxy properties and environments. The main difference lies in their environments; our local density estimates are a factor 2 larger around the radio-loud AGN. We propose a scenario in which radio-loud AGN with emission lines are located in galaxies where accretion of both cold and hot gas can occur simultaneously. (Abridged)

  18. Extremely organic-rich coma of comet C/2010 G2 (Hill) during its outburst in 2012

    SciTech Connect (OSTI)

    Kawakita, Hideyo; Kobayashi, Hitomi; Russo, Neil Dello; Vervack, Ron Jr.; Weaver, Harold A.; DiSanti, Mike A.; Opitom, Cyrielle; Jehin, Emmanuel; Manfroid, Jean; Gillon, Michael; Cochran, Anita L.; Harris, Walter M.; Bockelée-Morvan, Dominique; Biver, Nicolas; Crovisier, Jacques; McKay, Adam J.

    2014-06-20

    We performed high-dispersion near-infrared spectroscopic observations of comet C/2010 G2 (Hill) at 2.5 AU from the Sun using NIRSPEC (R ? 25,000) at the Keck II Telescope on UT 2012 January 9 and 10, about a week after an outburst had occurred. Over the two nights of our observations, prominent emission lines of CH{sub 4} and C{sub 2}H{sub 6}, along with weaker emission lines of H{sub 2}O, HCN, CH{sub 3}OH, and CO were detected. The gas production rate of CO was comparable to that of H{sub 2}O during the outburst. The mixing ratios of CO, HCN, CH{sub 4}, C{sub 2}H{sub 6}, and CH{sub 3}OH with respect to H{sub 2}O were higher than those for normal comets by a factor of five or more. The enrichment of CO and CH{sub 4} in comet Hill suggests that the sublimation of these hypervolatiles sustained the outburst of the comet. Some fraction of water in the inner coma might exist as icy grains that were likely ejected from nucleus by the sublimation of hypervolatiles. Mixing ratios of volatiles in comet Hill are indicative of the interstellar heritage without significant alteration in the solar nebula.

  19. Implications from a study of the timing of oil entrapment in Monterey siliceous shales, Lost Hills, San Joaquin Valley, California

    SciTech Connect (OSTI)

    Julander, D.R. )

    1992-01-01

    The oil and gas-rich upper Miocene siliceous shales of the Monterey Group are the primary development target in the Lost Hills Oil Field, San Joaquin Valley, California. As a result of diagenesis, the siliceous shales can be subdivided by opal phase into three sections (from shallow to deep): the Opal-A diatomites which are rich in oil saturation; the Opal-CT porcellanites which are predominantly wet but include pockets of moderate oil saturation; and the Quartz cherts and porcellanites which in some places are highly oil saturated immediately below the Opal CT section. Productivity trends in each of the three sections have been established through drilling and production testing, but a predictive model was not available until a study of the timing of oil entrapment at Lost Hills was recently completed. The study included an analysis of the depositional history of the siliceous shales and timing of: (1) structural growth of the Lost Hills fold, (2) source-rock maturation, and (3) development of the opal-phase segregation of the Monterey shales. The study led to enhanced understanding of the known oil saturation and production trends in the three opal-phase sections and yielded a predictive model that is being used to identify areas in the field with remedial or delineation potential. The study also produced evidence of fold axis rotation during the Pliocene and Pleistocene that helps explain differences in fracture orientations within the Monterey shales.

  20. Analysis of recent projections of electric power demand

    SciTech Connect (OSTI)

    Hudson, D.V. Jr.

    1993-08-01

    This report reviews the changes and potential changes in the outlook for electric power demand since the publication of Review and Analysis of Electricity Supply Market Projections (B. Swezey, SERI/MR-360-3322, National Renewable Energy Laboratory). Forecasts of the following organizations were reviewed: DOE/Energy Information Administration, DOE/Policy Office, DRI/McGraw-Hill, North American Electric Reliability Council, and Gas Research Institute. Supply uncertainty was briefly reviewed to place the uncertainties of the demand outlook in perspective. Also discussed were opportunities for modular technologies, such as renewable energy technologies, to fill a potential gap in energy demand and supply.

  1. Liberty Power Corp. (New Jersey) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill, Texas: Energy Resources Jump to:Power

  2. Lincoln County Power Dist No 1 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill,Photovoltaic JumpLimestone,Power Dist No

  3. Willwood Light & Power Company | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company)Idaho)VosslohWest PlainsAssn,WilderHill NewPowerWillwood

  4. Coal Fired Power Generation Market Analysis | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, searchClover Hill High SchoolToolsAnalysis

  5. Coal Fired Power Generation Market Forecast | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, searchClover Hill High

  6. Coal Fired Power Generation Market Size | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, searchClover Hill High

  7. Coal Fired Power Generation Market Trends | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, searchClover Hill High

  8. Coal Fired Power Generation Market | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, searchClover Hill High

  9. Comparison and coherence with the chromium electroplating NESHAP at Hill Air Force Base

    SciTech Connect (OSTI)

    Palmer, G. [OO-ALC/EME, Hill AFB, UT (United States); Hallenburg, E. [JBR Environmental Consultants, Inc., Sandy, UT (United States)

    1998-12-31

    One of the major functions at the landing gear facility located at Hill AFB are the chromium electroplating operations. This facility is classified as a major, large-hard-chromium electroplating operation, and was likely the first source in United States to comply with Subpart N of the National Emissions Standards for Hazardous Air Pollutants (NESHAP). A required initial performance test under Subpart N was required, besides establishing site-specific operating parameter values. These requirements were established after final promulgation of NESHAPS`s Subpart N on January 25, 1995. Because this compliance effort was the first test of Subpart N in EPA Region VIII, many precedents were established. Classifying the state-of-the-art MAPCO scrubber system to a specific type of scrubber listed in Subpart N posed some challenges and interpretation. The biggest challenge was compliance with the prescribed work practice standard, monitoring, reporting and recordkeeping requirements. The chromium electroplating environment is a corrosive and caustic domicile for equipment and components. With the promulgation of Subpart N, the electroplating facility received additional attention. Following the initial performance test, various modifications were deemed necessary to the control systems, ventilation ducts, exhaust configuration, mesh pads, mesh pad housing and other electroplating assemblages. Decommissioning of the chromium anodizing tanks at the facility was also a result of trying to achieve compliance. Because of system upgrades, a new initial performance test was warranted. The improved system operated under new flow characteristics, site-specific parameter values, and improved collection and scrubbing efficiencies.

  10. Summary of Degas II performance at the US Strategic Petroleum Reserve Big Hill site.

    SciTech Connect (OSTI)

    Rudeen, David K.; Lord, David L.

    2007-10-01

    Crude oil stored at the US Strategic Petroleum Reserve (SPR) requires mitigation procedures to maintain oil vapor pressure within program delivery standards. Crude oil degasification is one effective method for lowering crude oil vapor pressure, and was implemented at the Big Hill SPR site from 2004-2006. Performance monitoring during and after degasification revealed a range of outcomes for caverns that had similar inventory and geometry. This report analyzed data from SPR degasification and developed a simple degas mixing (SDM) model to assist in the analysis. Cavern-scale oil mixing during degassing and existing oil heterogeneity in the caverns were identified as likely causes for the range of behaviors seen. Apparent cavern mixing patterns ranged from near complete mixing to near plug flow, with more mixing leading to less efficient degassing due to degassed oil re-entering the plant before 100% of the cavern oil volume was processed. The report suggests that the new cavern bubble point and vapor pressure regain rate after degassing be based on direct in-cavern measurements after degassing as opposed to using the plant outlet stream properties as a starting point, which understates starting bubble point and overstates vapor pressure regain. Several means to estimate the cavern bubble point after degas in the absence of direct measurement are presented and discussed.

  11. Geomechanical analysis to predict the oil leak at the wellbores in Big Hill Strategic Petroleum Reserve

    SciTech Connect (OSTI)

    Park, Byoung Yoon

    2014-02-01

    Oil leaks were found in wellbores of Caverns 105 and 109 at the Big Hill Strategic Petroleum Reserve site. According to the field observations, two instances of casing damage occurred at the depth of the interbed between the caprock bottom and salt top. A three dimensional finite element model, which contains wellbore element blocks and allows each cavern to be configured individually, is constructed to investigate the wellbore damage mechanism. The model also contains element blocks to represent interface between each lithology and a shear zone to examine the interbed behavior in a realistic manner. The causes of the damaged casing segments are a result of vertical and horizontal movements of the interbed between the caprock and salt dome. The salt top subsides because the volume of caverns below the salt top decrease with time due to salt creep closure, while the caprock subsides at a slower rate because the caprock is thick and stiffer. This discrepancy yields a deformation of the well. The deformed wellbore may fail at some time. An oil leak occurs when the wellbore fails. A possible oil leak date of each well is determined using the equivalent plastic strain failure criterion. A well grading system for a remediation plan is developed based on the predicted leak dates of each wellbore.

  12. Population Characteristics and Seasonal Movement Patterns of the Rattlesnake Hills Elk Herd - Status Report 2000

    SciTech Connect (OSTI)

    Tiller, B.L.; Zufelt, R.K.; Turner, S.; Cadwell, L.L.; Bender, L.; Turner, G.K.

    2000-10-10

    Population characteristics of the Rattlesnake Hills elk herd indicate reduced herd growth rates from the 1980s compared to the 1990s (McCorquodale 1988; Eberhardt 1996). However, the population continued to grow approximately 25% annually through the 1990s, reaching a high of 838 animals in summer 1999. Calf recruitment rates appear to be cyclic and are likely related to reduced calf survival during the first weeks of life; however, late-term abortions may also have occurred. The cause(s) could be predator-related and/or a function of shifts in nutritional condition (age-class distributions, assuming older-age cows are less likely to recruit calves, major climate shifts) or changes in the human-related disturbances during gestation, and/or calf rearing periods. In fall 1999 and spring 2000, the population was reduced from 838 individuals to 660 individuals. The primary controlling factors were modified hunting seasons on private and state lands and the large-scale roundup conducted in spring 2000. Continued removal of animals (particularly females) within the population will be pivotal to maintain the population at a level that minimizes land damage complaints, animal-vehicle collisions, use of central Hanford areas, and deterioration of natural resources.

  13. Light-oil steamdrive pilot test at NPR-1, Elk Hills, California

    SciTech Connect (OSTI)

    Garner, T.A. (Bechtel Petroleum Operations Inc. (United States))

    1992-08-01

    This paper reports that a steamdrive pilot was run on a light-oil reservoir at the Naval Petroleum Reserve No. 1 (NPR-1) in the Elk Hills oil field, Kern County, CA. From a reservoir perspective, the steamdrive process behaved much as expected. The first event to occur was the appearance of freshened water production accompanied by CO[sub 2] gas 3 months from startup of steam injection. The second event, an increase in crude gravity, appeared 3 months later, or 6 months into the project. Finally, the third event was the arrival of the heat front at the producing wells 13 months after startup. From a production perspective, CO[sub 2] in the freshened produced water caused wellbore scale damage and loss of well productivity. The steamdrive, however, mobilized residual oil, which mostly was captured outside the pilot pattern area. Acid stimulations to restore well productivity were done by injecting inhibitor in the steam feedwater and by designing acid cleanup treatments on the basis of results from laboratory tests.

  14. Silica phase changes: Diagenetic agent for oil entrapment, Lost Hills field, California

    SciTech Connect (OSTI)

    Julander, D.R.; Szymanski, D.L. )

    1991-02-01

    The siliceous shales of the Monterey Group are the primary development target at Lost Hills. Silica phase changes have influenced the distribution and entrapment of hydrocarbons. With increasing temperature, opal A phase diatomite is converted to opal CT and finally quartz phase rock. All phases are low in permeability. The opal A diatomite is characteristically high in oil saturation and productive saturation. Productivity from this phase is dependent on structural position and fieldwide variations in oil viscosity and biodegradation. The deeper chert reservoir coincides with the opal CT to quartz phase transition. Porosity is again reduced in this transition, but saturations in the quartz phase rocks increase. Tests in the chert reservoir indicate a single, low-permeability system, suggesting the importance of matric contribution. resistivity and porosity in the diatomite, and resistivity and velocity in the chert, are the physical properties which best reflect saturation. Methods exploiting these properties (FMS, BHTV, borehole, and surface shear wave studies) should be helpful in further characterizing the reservoirs and identifying future pay.

  15. An Intermediate-Mass Black Hole Candidate in M51?

    E-Print Network [OSTI]

    Earnshaw, H M

    2015-01-01

    We present the current results of an investigation into M51 ULX-7, using archival data from XMM-Newton, Chandra and NuSTAR, and optical and radio data from HST and VLA. The source has a consistently hard power-law X-ray spectrum and high short-term variability. This is unusual variability behaviour for a ULX, as we would expect highly variable ULXs to have soft energy spectra. The power spectrum features a break at ~1e-3 Hz, from low frequency spectral index alpha=0.1 to high frequency spectral index alpha=0.8, analogous to the low frequency break found in power spectra of black holes accreting in the low/hard state. We do not observe a corresponding high frequency break, however taking the white noise level as a frequency lower limit of the break, we can calculate a black hole mass upper limit of 9.12e4 solar masses, assuming that the ULX is in the low/hard state. While there is no radio detection, we find a flux density upper limit of 87 micro-Jy/beam. Using the X-ray/radio fundamental plane, we calculate a...

  16. Black Hole Thermodynamics and Electromagnetism

    E-Print Network [OSTI]

    Burra G. Sidharth

    2005-07-15

    We show a strong parallel between the Hawking, Beckenstein black hole Thermodynamics and electromagnetism: When the gravitational coupling constant transform into the electromagnetic coupling constant, the Schwarzchild radius, the Beckenstein temperature, the Beckenstein decay time and the Planck mass transform to respectively the Compton wavelength, the Hagedorn temperature, the Compton time and a typical elementary particle mass. The reasons underlying this parallalism are then discussed in detail.

  17. Quantum chaos inside Black Holes

    E-Print Network [OSTI]

    Addazi, Andrea

    2015-01-01

    We show how semiclassical black holes can be reinterpreted as an effective geometry, composed of a large ensamble of horizonless naked singularities (eventually smoothed at the Planck scale). We call this new items {\\it frizzyballs}, which can be rigorously defined by euclidean path integral approach. This has interesting implications regarding information paradoxes. We demonstrate that infalling information will chaotically propagate inside this system before going to the full quantum gravity regime (Planck scale).

  18. Quantum chaos inside Black Holes

    E-Print Network [OSTI]

    Andrea Addazi

    2015-08-30

    We show how semiclassical black holes can be reinterpreted as an effective geometry, composed of a large ensamble of horizonless naked singularities (eventually smoothed at the Planck scale). We call this new items {\\it frizzyballs}, which can be rigorously defined by euclidean path integral approach. This has interesting implications regarding information paradoxes. We demonstrate that infalling information will chaotically propagate inside this system before going to the full quantum gravity regime (Planck scale).

  19. Classical Black Holes Are Hot

    E-Print Network [OSTI]

    Erik Curiel

    2014-11-09

    In the early 1970s it is was realized that there is a striking formal analogy between the Laws of black-hole mechanics and the Laws of classical thermodynamics. Before the discovery of Hawking radiation, however, it was generally thought that the analogy was only formal, and did not reflect a deep connection between gravitational and thermodynamical phenomena. It is still commonly held that the surface gravity of a stationary black hole can be construed as a true physical temperature and its area as a true entropy only when quantum effects are taken into account; in the context of classical general relativity alone, one cannot cogently construe them so. Does the use of quantum field theory in curved spacetime offer the only hope for taking the analogy seriously? I think the answer is `no'. To attempt to justify that answer, I shall begin by arguing that the standard argument to the contrary is not physically well founded, and in any event begs the question. Looking at the various ways that the ideas of "temperature" and "entropy" enter classical thermodynamics then will suggest arguments that, I claim, show the analogy between classical black-hole mechanics and classical thermodynamics should be taken more seriously, without the need to rely on or invoke quantum mechanics. In particular, I construct an analogue of a Carnot cycle in which a black hole "couples" with an ordinary thermodynamical system in such a way that its surface gravity plays the role of temperature and its area that of entropy. Thus, the connection between classical general relativity and classical thermodynamics on their own is already deep and physically significant, independent of quantum mechanics.

  20. The scattering matrix approach for the quantum black hole, an overview

    E-Print Network [OSTI]

    G. 't Hooft

    1996-07-09

    If one assumes the validity of conventional quantum field theory in the vicinity of the horizon of a black hole, one does not find a quantum mechanical description of the entire black hole that even remotely resembles that of conventional forms of matter; in contrast with matter made out of ordinary particles one finds that, even if embedded in a finite volume, a black hole would be predicted to have a strictly continuous spectrum. Dissatisfied with such a result, which indeed hinges on assumptions concerning the horizon that may well be wrong, various investigators have now tried to formulate alternative approaches to the problem of ``quantizing" the black hole. We here review the approach based on the assumption of quantum mechanical purity and unitarity as a starting point, as has been advocated by the present author for some time, concentrating on the physics of the states that should live on a black hole horizon. The approach is shown to be powerful in not only producing promising models for the quantum black hole, but also new insights concerning the dynamics of physical degrees of freedom in ordinary flat space-time.