Sample records for horizon spirit contacts

  1. Contacts

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    Contacts Contacts Bradbury Science Museum P.O. Box 1663 Mail Stop C330 Los Alamos National Laboratory Los Alamos, NM 87545 email: web-bsm@lanl.gov PHONE: 505-667-4444 FAX:...

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  4. Contact

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  5. Contacts

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  6. Contacts:

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  7. Contacts

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  8. HORIZON SENSING

    SciTech Connect (OSTI)

    Larry G. Stolarczyk

    2003-03-18T23:59:59.000Z

    With the aid of a DOE grant (No. DE-FC26-01NT41050), Stolar Research Corporation (Stolar) developed the Horizon Sensor (HS) to distinguish between the different layers of a coal seam. Mounted on mining machine cutter drums, HS units can detect or sense the horizon between the coal seam and the roof and floor rock, providing the opportunity to accurately mine the section of the seam most desired. HS also enables accurate cutting of minimum height if that is the operator's objective. Often when cutting is done out-of-seam, the head-positioning function facilitates a fixed mining height to minimize dilution. With this technology, miners can still be at a remote location, yet cut only the clean coal, resulting in a much more efficient overall process. The objectives of this project were to demonstrate the feasibility of horizon sensing on mining machines and demonstrate that Horizon Sensing can allow coal to be cut cleaner and more efficiently. Stolar's primary goal was to develop the Horizon Sensor (HS) into an enabling technology for full or partial automation or ''agile mining''. This technical innovation (R&D 100 Award Winner) is quickly demonstrating improvements in productivity and miner safety at several prominent coal mines in the United States. In addition, the HS system can enable the cutting of cleaner coal. Stolar has driven the HS program on the philosophy that cutting cleaner coal means burning cleaner coal. The sensor, located inches from the cutting bits, is based upon the physics principles of a Resonant Microstrip Patch Antenna (RMPA). When it is in proximity of the rock-coal interface, the RMPA impedance varies depending on the thickness of uncut coal. The impedance is measured by the computer-controlled electronics and then sent by radio waves to the mining machine. The worker at the machine can read the data via a Graphical User Interface, displaying a color-coded image of the coal being cut, and direct the machine appropriately. The Horizon Sensor program began development in 1998 and experienced three major design phases. The final version, termed HS-3, was commissioned in 2000 with the assistance of the DOE-Mining Industry of the Future program, commercialized in 2002, and has been used 14 times in 12 different mines within the United States. The Horizon Sensor has applications in both underground and surface mining operations. This technology is primarily used in the coal industry, but is also used to mine trona and potash. All horizon sensor components have Mine Safety and Health Administration (MSHA) (United States) and IEC (International) certification. Horizon Sensing saves energy by maximizing cutting efficiency, cutting only desired material. This desired material is cleaner fuel, therefore reducing pollutants to the atmosphere when burned and burning more efficiently. Extracting only desired material increases productivity by reducing or eliminating the cleaning step after extraction. Additionally, this technology allows for deeper mining, resulting in more material gained from one location. The remote sensing tool allows workers to operate the machinery away from the hazards of cutting coal, including noise, breathing dust and gases, and coal and rock splintering and outbursts. The HS program has primarily revolved around the development of the technology. However, the end goal of the program has always been the commercialization of the technology and only within the last 2 years of the program has this goal been realized. Real-time horizon sensing on mining machines is becoming an industry tool. Detailed monitoring of system function, user experience, and mining benefits is ongoing.

  9. Sandia Energy - Sandia Workers Received Entrepreneurial Spirit...

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    Received Entrepreneurial Spirit Awards Jim Pacheco built a reputation in concentrating solar power and was recruited by several companies when the technology took off in the...

  10. Scanning the Conservation Horizon

    E-Print Network [OSTI]

    Scanning the Conservation Horizon A Guide to Climate Change Vulnerability Assessment #12;Scanning.A. Stein, and N.A. Edelson, editors. 2011. Scanning the Conservation Horizon: A Guide to Climate Change.S. Geological Survey Fundamental Science Practices. Scanning the Conservation Horizon is available online at

  11. Horizon Health EAP Services

    E-Print Network [OSTI]

    Yates, Andrew

    /09) HorizonCareLinkSM ­ All the help you need online Horizon Health EAP also provides services through counselors- Child care or elder care services- Pet care and veterinarians- Adoption resources- Health clubsHorizon Health EAP Services Employee Assistance Program with Telephone and 3 Face

  12. Mechanics of Isolated Horizons

    E-Print Network [OSTI]

    Abhay Ashtekar; Christopher Beetle; Stephen Fairhurst

    1999-11-04T23:59:59.000Z

    A set of boundary conditions defining an undistorted, non-rotating isolated horizon are specified in general relativity. A space-time representing a black hole which is itself in equilibrium but whose exterior contains radiation admits such a horizon. However, the definition is applicable in a more general context, such as cosmological horizons. Physically motivated, (quasi-)local definitions of the mass and surface gravity of an isolated horizon are introduced and their properties analyzed. Although their definitions do not refer to infinity, these quantities assume their standard values in the static black hole solutions. Finally, using these definitions, the zeroth and first laws of black hole mechanics are established for isolated horizons.

  13. OU Spirit 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcerns Jumpsource HistoryFractures below a19/2008 ExpireOU Spirit

  14. Online Horizon Selection in Receding Horizon Temporal Logic Planning

    E-Print Network [OSTI]

    Murray, Richard M.

    - ative, short horizon solutions, using the currently observed state to compute a control strategy synthesis for temporal logic, but have thus far been limited by pursuing a single sequence of short horizon problems to the current goal. We propose a receding horizon algorithm for reactive synthesis that au

  15. Investors' horizon and stock prices

    E-Print Network [OSTI]

    Parsa, Sahar

    2011-01-01T23:59:59.000Z

    This dissertation consists of three essays on the relation between investors' trading horizon and stock prices. The first chapter explores the theoretical relation between the horizon of traders and the negative externality ...

  16. Spacetimes containing slowly evolving horizons

    E-Print Network [OSTI]

    W. Kavanagh; I. Booth

    2006-08-29T23:59:59.000Z

    Slowly evolving horizons are trapping horizons that are "almost" isolated horizons. This paper reviews their definition and discusses several spacetimes containing such structures. These include certain Vaidya and Tolman-Bondi solutions as well as (perturbatively) tidally distorted black holes. Taking into account the associated mass scales, they also suggest that slowly evolving horizons are the norm rather than the exception in astrophysical processes that involve stellar-scale black holes.

  17. Pressure Solution: Possible Mechanism for Silicate Grain Dissolution in a Petrocalcic Horizon

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Pressure Solution: Possible Mechanism for Silicate Grain Dissolution in a Petrocalcic Horizon H in southern New Mexico, up to 58% of the silicate grains have dissolution fea- tures, such as embayed-solution mechanism in the petrocaIcic horizon: (i) silicate grains are smooth where they contact pores, but serrated

  18. SpiritMars Exploration Rovers National Aeronautics and

    E-Print Network [OSTI]

    Waliser, Duane E.

    hemisphere landing site. The rover's position tilted its solar panels toward the Sun to maintain enough solar power for Spirit to continue making scientific observations throughout the winter. The Pancam began

  19. Entropy of Isolated Horizons revisited

    E-Print Network [OSTI]

    Rudranil Basu; Romesh K. Kaul; Parthasarathi Majumdar

    2009-07-29T23:59:59.000Z

    The decade-old formulation of the isolated horizon classically and within loop quantum gravity, and the extraction of the microcanonical entropy of such a horizon from this formulation, is reviewed, in view of recent renewed interest. There are two main approaches to this problem: one employs an SU(2) Chern-Simons theory describing the isolated horizon degrees of freedom, while the other uses a reduced U(1) Chern-Simons theory obtained from the SU(2) theory, with appropriate constraints imposed on the spectrum of boundary states `living' on the horizon. It is shown that both these ways lead to the same infinite series asymptotic in horizon area for the microcanonical entropy of an isolated horizon. The leading area term is followed by an unambiguous correction term logarithmic in area with a coefficient $-\\frac32$, with subleading corrections dropping off as inverse powers of the area.

  20. Entropy of isolated horizons revisited

    SciTech Connect (OSTI)

    Basu, Rudranil; Kaul, Romesh K.; Majumdar, Parthasarathi [SN Bose National Centre for Basic Sciences, Kolkata 700 098 (India); Institute of Mathematical Sciences, Chennai 600 113 (India); Saha Institute of Nuclear Physics, Kolkata 700 064 (India)

    2010-07-15T23:59:59.000Z

    The decade-old formulation of the isolated horizon classically and within loop quantum gravity, and the extraction of the microcanonical entropy of such a horizon from this formulation, is reviewed, in view of recent renewed interest. There are two main approaches to this problem: one employs an SU(2) Chern-Simons theory describing the isolated horizon degrees of freedom, while the other uses a reduced U(1) Chern-Simons theory obtained from the SU(2) theory, with appropriate constraints imposed on the spectrum of boundary states ''living'' on the horizon. It is shown that both these ways lead to the same infinite series asymptotic in the horizon area for the microcanonical entropy of an isolated horizon. The leading area term is followed by an unambiguous correction term logarithmic in area with a coefficient -(3/2), with subleading corrections dropping off as inverse powers of the area.

  1. The New Horizons Spacecraft

    E-Print Network [OSTI]

    Fountain, Glen H; Hersman, Christopher B; Herder, Timothy S; Coughlin, Thomas B; Gibson, William C; Clancy, Deborah A; DeBoy, Christopher C; Hill, T Adrian; Kinnison, James D; Mehoke, Douglas S; Ottman, Geffrey K; Rogers, Gabe D; Stern, S Alan; Stratton, James M; Vernon, Steven R; Williams, Stephen P

    2007-01-01T23:59:59.000Z

    The New Horizons spacecraft was launched on 19 January 2006. The spacecraft was designed to provide a platform for seven instruments that will collect and return data from Pluto in 2015. The design drew on heritage from previous missions developed at The Johns Hopkins University Applied Physics Laboratory (APL) and other missions such as Ulysses. The trajectory design imposed constraints on mass and structural strength to meet the high launch acceleration needed to reach the Pluto system prior to the year 2020. The spacecraft subsystems were designed to meet tight mass and power allocations, yet provide the necessary control and data handling finesse to support data collection and return when the one-way light time during the Pluto flyby is 4.5 hours. Missions to the outer solar system require a radioisotope thermoelectric generator (RTG) to supply electrical power, and a single RTG is used by New Horizons. To accommodate this constraint, the spacecraft electronics were designed to operate on less than 200 W....

  2. The New Horizons Spacecraft

    E-Print Network [OSTI]

    Glen H. Fountain; David Y. Kusnierkiewicz; Christopher B. Hersman; Timothy S. Herder; Thomas B. Coughlin; William C. Gibson; Deborah A. Clancy; Christopher C. DeBoy; T. Adrian Hill; James D. Kinnison; Douglas S. Mehoke; Geffrey K. Ottman; Gabe D. Rogers; S. Alan Stern; James M. Stratton; Steven R. Vernon; Stephen P. Williams

    2007-09-26T23:59:59.000Z

    The New Horizons spacecraft was launched on 19 January 2006. The spacecraft was designed to provide a platform for seven instruments that will collect and return data from Pluto in 2015. The design drew on heritage from previous missions developed at The Johns Hopkins University Applied Physics Laboratory (APL) and other missions such as Ulysses. The trajectory design imposed constraints on mass and structural strength to meet the high launch acceleration needed to reach the Pluto system prior to the year 2020. The spacecraft subsystems were designed to meet tight mass and power allocations, yet provide the necessary control and data handling finesse to support data collection and return when the one-way light time during the Pluto flyby is 4.5 hours. Missions to the outer solar system require a radioisotope thermoelectric generator (RTG) to supply electrical power, and a single RTG is used by New Horizons. To accommodate this constraint, the spacecraft electronics were designed to operate on less than 200 W. The spacecraft system architecture provides sufficient redundancy to provide a probability of mission success of greater than 0.85, even with a mission duration of over 10 years. The spacecraft is now on its way to Pluto, with an arrival date of 14 July 2015. Initial inflight tests have verified that the spacecraft will meet the design requirements.

  3. Near Horizon Structure of Extremal Vanishing Horizon Black Holes

    E-Print Network [OSTI]

    Sadeghian, S; Vahidinia, M H; Yavartanoo, H

    2015-01-01T23:59:59.000Z

    We study the near horizon structure of Extremal Vanishing Horizon (EVH) black holes, extremal black holes with vanishing horizon area with a vanishing one-cycle on the horizon. We construct the most general near horizon EVH and near-EVH ansatz for the metric and other fields, like dilaton and gauge fields which may be present in the theory. We prove that (1) the near horizon EVH geometry for generic gravity theory in generic dimension has a three dimensional maximally symmetric subspace; (2) if the matter fields of the theory satisfy strong energy condition either this 3d part is AdS$_3$, or the solution is a direct product of a locally 3d flat space and a $d-3$ dimensional part; (3) these results extend to the near horizon geometry of near-EVH black holes, for which the AdS$_3$ part is replaced with BTZ geometry. We present some specific near horizon EVH geometries in 3, 4 and 5 dimensions for which there is a classification. We also briefly discuss implications of these generic results for generic (gauged) ...

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  5. Mechanics of Rotating Isolated Horizons

    E-Print Network [OSTI]

    Abhay Ashtekar; Christopher Beetle; Jerzy Lewandowski

    2001-04-11T23:59:59.000Z

    Black hole mechanics was recently extended by replacing the more commonly used event horizons in stationary space-times with isolated horizons in more general space-times (which may admit radiation arbitrarily close to black holes). However, so far the detailed analysis has been restricted to non-rotating black holes (although it incorporated arbitrary distortion, as well as electromagnetic, Yang-Mills and dilatonic charges). We now fill this gap by first introducing the notion of isolated horizon angular momentum and then extending the first law to the rotating case.

  6. Acoustic horizons in nuclear fluids

    E-Print Network [OSTI]

    Niladri Sarkar; Abhik Basu; Jayanta K. Bhattacharjee; Arnab K. Ray

    2014-04-13T23:59:59.000Z

    We consider a hydrodynamic description of the spherically symmetric outward flow of nuclear matter, accommodating dispersion in it as a very weak effect. About the resulting stationary conditions in the flow, we apply an Eulerian scheme to derive a fully nonlinear equation of a time-dependent radial perturbation. In its linearized limit, with no dispersion, this equation implies the static acoustic horizon of an analogue gravity model. We, however, show that time-dependent nonlinear effects destabilize the static horizon. We also model the perturbation as a high-frequency travelling wave, and perform a {\\it WKB} analysis, in which the effect of weak dispersion is studied iteratively. We show that even arbitrarily small values of dispersion make the horizon fully opaque to any acoustic disturbance propagating against the bulk flow, with the amplitude and the energy flux of the radial perturbation undergoing a discontinuity at the horizon, and decaying exponentially just outside it.

  7. Deepwater Horizon Situation Report #5

    SciTech Connect (OSTI)

    none,

    2010-06-10T23:59:59.000Z

    At approximately 11:00 pm EDT April 20, 2010 an explosion occurred aboard the Deepwater Horizon mobile offshore drilling unit (MODU) located 52 miles Southeast of Venice, LA and 130 miles southeast of New Orleans, LA. The MODU was drilling an exploratory well and was not producing oil at the time of the incident. The Deepwater Horizon MODU sank 1,500 feet northwest of the well site. Detailed information on response and recovery operations can be found at: http://www.deepwaterhorizonresponse.com/go/site/2931/

  8. Generic isolated horizons in loop quantum gravity

    E-Print Network [OSTI]

    Christopher Beetle; Jonathan Engle

    2010-07-16T23:59:59.000Z

    Isolated horizons model equilibrium states of classical black holes. A detailed quantization, starting from a classical phase space restricted to spherically symmetric horizons, exists in the literature and has since been extended to axisymmetry. This paper extends the quantum theory to horizons of arbitrary shape. Surprisingly, the Hilbert space obtained by quantizing the full phase space of \\textit{all} generic horizons with a fixed area is identical to that originally found in spherical symmetry. The entropy of a large horizon remains one quarter its area, with the Barbero-Immirzi parameter retaining its value from symmetric analyses. These results suggest a reinterpretation of the intrinsic quantum geometry of the horizon surface.

  9. NIF featured on BBC "Horizon"

    ScienceCinema (OSTI)

    Brian Cox

    2010-09-01T23:59:59.000Z

    The National Ignition Facility, the world's largest laser system, located at Lawrence Livermore National Laboratory, was featured in the BBC broadcast "Horizon" hosted by physicist Brian Cox. Here is the NIF portion of the program, which was entitled "Can We Make A Star On Earth?" This video is used with the express permission of the BBC.

  10. Local symmetries of non-expanding horizons

    E-Print Network [OSTI]

    Rudranil Basu; Ayan Chatterjee; Amit Ghosh

    2010-04-21T23:59:59.000Z

    Local symmetries of a non-expanding horizon has been investigated in the 1st order formulation of gravity. When applied to a spherically symmetric isolated horizon only a U(1) subgroup of the Lorentz group survives as residual local symmetry that one can make use of in constructing an effective theory on the horizon.

  11. Spacetime Foam Model of the Schwarzschild Horizon

    E-Print Network [OSTI]

    Jarmo Makela; Ari Peltola

    2004-03-19T23:59:59.000Z

    We consider a spacetime foam model of the Schwarzschild horizon, where the horizon consists of Planck size black holes. According to our model the entropy of the Schwarzschild black hole is proportional to the area of its event horizon. It is possible to express geometrical arguments to the effect that the constant of proportionality is, in natural units, equal to one quarter.

  12. Deepwater Horizon Disaster Professor Satish Nagarajaiah

    E-Print Network [OSTI]

    Nagarajaiah, Satish

    Systems Research @ Rice Source: MMS and BP #12;April 20, 2010 At approximately 10 pm Horizon Rig disaster;Collapse / Oil Spill Offshore and Marine Systems Research @ Rice Source: NYT/AP/flickr #12;Horizon BeforeDeepwater Horizon Disaster Professor Satish Nagarajaiah Dept. of Civil & Env. Eng. , Dept

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  15. Website Contact

    Broader source: Energy.gov [DOE]

    Contact the website administrator with questions, comments, or issues related to the Federal Energy Management Program website. If your inquiry is in regard to a specific Web page, please include...

  16. Zer sanr 'spirit guardians' chanted by pirma Gavq Lavq

    E-Print Network [OSTI]

    Terrell, Jacob A.

    (s)’s first / native language Akha Performer(s)’s ethnic group Akha Musical instruments and / or other objects used in performance Level of public access (fully closed, fully open) Fully open Notes and context (include reference to any related documentation... da mae.. \\ft Above the ancestors the guardian spirits of the children gather together.. \\ref khoer_naevq_dav.004 \\tx Haer ei la, or ma lawr livq ma yaer ghanr yaer livq pan sanr, zaq lawr livq pan \\mb haer ei la, or ma law *livq ma yaer ghanr yaer...

  17. Home Energy Score API User: Spirit Foundation | Department of Energy

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  18. Horizons cannot save the Landscape

    E-Print Network [OSTI]

    Iosif Bena; Alex Buchel; Oscar J. C. Dias

    2012-12-20T23:59:59.000Z

    Solutions with anti-D3 branes in a Klebanov-Strassler geometry with positive charge dissolved in fluxes have a certain singularity corresponding to a diverging energy density of the RR and NS-NS three-form fluxes. There are many hopes and arguments for and against this singularity, and we attempt to settle the issue by examining whether this singularity can be cloaked by a regular event horizon. This is equivalent to the existence of asymptotically Klebanov-Tseytlin or Klebanov-Strassler black holes whose charge measured at the horizon has the opposite sign to the asymptotic charge. We find that no such KT solution exists. Furthermore, for a large class of KS black holes we considered, the charge at the horizon must also have the same sign as the asymptotic charge, and is completely determined by the temperature, the number of fractional branes and the gaugino masses of the dual gauge theory. Our result suggests that antibrane singularities in backgrounds with charge in the fluxes are unphysical, which in turn raises the question as to whether antibranes can be used to uplift AdS vacua to deSitter ones. Our results also point out to a possible instability mechanism for the antibranes.

  19. Spacetime near isolated and dynamical trapping horizons

    E-Print Network [OSTI]

    Ivan Booth

    2014-06-02T23:59:59.000Z

    We study the near-horizon spacetime for isolated and dynamical trapping horizons (equivalently marginally outer trapped tubes). The metric is expanded relative to an ingoing Gaussian null coordinate and the terms of that expansion are explicitly calculated to second order. For the spacelike case, knowledge of the intrinsic and extrinsic geometry of the (dynamical) horizon is sufficient to determine the near-horizon spacetime, while for the null case (an isolated horizon) more information is needed. In both cases spacetime is allowed to be of arbitrary dimension and the formalism accomodates both general relativity as well as more general field equations. The formalism is demonstrated for two applications. First, spacetime is considered near an isolated horizon and the construction is both checked against the Kerr-Newman solution and compared to the well-known near-horizon limit for stationary extremal black hole spacetimes. Second, spacetime is examined in the vicinity of a slowly evolving horizon and it is demonstrated that there is always an event horizon candidate in this region. The geometry and other properties of this null surface match those of the slowly evolving horizon to leading order and in this approximation the candidate evolves in a locally determined way. This generalizes known results for Vaidya as well as certain spacetimes known from studies of the fluid-gravity correspondence.

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  1. LANL Contacts

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  4. Variable horizon in a peridynamic medium.

    SciTech Connect (OSTI)

    Silling, Stewart A.; Littlewood, David John; Seleson, Pablo

    2014-10-01T23:59:59.000Z

    A notion of material homogeneity is proposed for peridynamic bodies with vari- able horizon but constant bulk properties. A relation is derived that scales the force state according to the position-dependent horizon while keeping the bulk properties un- changed. Using this scaling relation, if the horizon depends on position, artifacts called ghost forces may arise in a body under homogeneous deformation. These artifacts de- pend on the second derivative of horizon and can be reduced by use of a modified equilibrium equation using a new quantity called the partial stress . Bodies with piece- wise constant horizon can be modeled without ghost forces by using a technique called a splice between the regions. As a limiting case of zero horizon, both partial stress and splice techniques can be used to achieve local-nonlocal coupling. Computational examples, including dynamic fracture in a one-dimensional model with local-nonlocal coupling, illustrate the methods.

  5. Horizon dynamics of distorted rotating black holes

    E-Print Network [OSTI]

    Tony Chu; Harald P. Pfeiffer; Michael I. Cohen

    2011-04-28T23:59:59.000Z

    We present numerical simulations of a Kerr black hole perturbed by a pulse of ingoing gravitational radiation. For strong perturbations we find up to five concentric marginally outer trapped surfaces. These trapped surfaces appear and disappear in pairs, so that the total number of such surfaces at any given time is odd. The world tubes traced out by the marginally outer trapped surfaces are found to be spacelike during the highly dynamical regime, approaching a null hypersurface at early and late times. We analyze the structure of these marginally trapped tubes in the context of the dynamical horizon formalism, computing the expansion of outgoing and incoming null geodesics, as well as evaluating the dynamical horizon flux law and the angular momentum flux law. Finally, we compute the event horizon. The event horizon is well-behaved and approaches the apparent horizon before and after the highly dynamical regime. No new generators enter the event horizon during the simulation.

  6. Apparent horizon in fluid-gravity duality

    SciTech Connect (OSTI)

    Booth, Ivan; Heller, Michal P.; Plewa, Grzegorz; Spalinski, Michal [Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, A1C 5S7 (Canada); Instituut voor Theoretische Fysica, Universiteit van Amsterdam, Science Park 904, 1090 GL Amsterdam (Netherlands); Soltan Institute for Nuclear Studies, Hoza 69, 00-681 Warsaw (Poland); Soltan Institute for Nuclear Studies, Hoza 69, 00-681 Warsaw (Poland) and Physics Department, University of Bialystok, 15-424 Bialystok (Poland)

    2011-05-15T23:59:59.000Z

    This article develops a computational framework for determining the location of boundary-covariant apparent horizons in the geometry of conformal fluid-gravity duality in arbitrary dimensions. In particular, it is shown up to second order and conjectured to hold to all orders in the gradient expansion that there is a unique apparent horizon which is covariantly expressible in terms of fluid velocity, temperature, and boundary metric. This leads to the first explicit example of an entropy current defined by an apparent horizon and opens the possibility that in the near-equilibrium regime there is preferred foliation of apparent horizons for black holes in asymptotically anti-de Sitter spacetimes.

  7. Contact Us

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

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

  8. Contact Us

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContact

  9. Two physical characteristics of numerical apparent horizons

    E-Print Network [OSTI]

    Ivan Booth

    2007-12-20T23:59:59.000Z

    This article translates some recent results on quasilocal horizons into the language of $(3+1)$ general relativity so as to make them more useful to numerical relativists. In particular quantities are described which characterize how quickly an apparent horizon is evolving and how close it is to either equilibrium or extremality.

  10. Optical geometry across the horizon

    E-Print Network [OSTI]

    Rickard Jonsson

    2007-08-19T23:59:59.000Z

    In a companion paper (Jonsson and Westman, Class. Quantum Grav. 23 (2006) 61), a generalization of optical geometry, assuming a non-shearing reference congruence, is discussed. Here we illustrate that this formalism can be applied to a finite four-volume of any spherically symmetric spacetime. In particular we apply the formalism, using a non-static reference congruence, to do optical geometry across the horizon of a static black hole. While the resulting geometry in principle is time dependent, we can choose the reference congruence in such a manner that an embedding of the geometry always looks the same. Relative to the embedded geometry the reference points are then moving. We discuss the motion of photons, inertial forces and gyroscope precession in this framework.

  11. Geothermal: Contact Us

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

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

  12. Eyeglass allergic contact dermatitis

    E-Print Network [OSTI]

    Scott, Kimberly; Levender, Michelle M; Feldman, Steven R

    2010-01-01T23:59:59.000Z

    T, Iijima M, Maibach HI. Eyeglass frame allergic contactNakada T, Maibach HI. Eyeglass allergic contact dermatitis.Eyeglass allergic contact dermatitis Kimberly Scott 1 ,

  13. Ethanol as Internal Standard for Quantitative Determination of Volatile Compounds in Spirit Drinks by Gas Chromatography

    E-Print Network [OSTI]

    Charapitsa, Siarhei V; Kulevich, Nikita V; Makoed, Nicolai M; Mazanik, Arkadzi L; Sytova, Svetlana N

    2012-01-01T23:59:59.000Z

    The new methodical approach of using ethanol as internal standard in gas chromatographic analysis of volatile compounds in spirit drinks in daily practice of testing laboratories is proposed. This method provides determination of volatile compounds concentrations in spirit drinks directly expressed in milligrams per liter (mg/L) of absolute alcohol according to official methods without measuring of alcohol strength of analyzed sample. The experimental demonstration of this method for determination of volatile compounds in spirit drinks by gas chromatography is described. Its validation was carried out by comparison with experimental results obtained by internal standard method and external standard method.

  14. Microsoft PowerPoint - Deepwater Horizon Containment - 30 JUN...

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

    Deepwater Horizon Containment - 30 JUN.ppt Microsoft PowerPoint - Deepwater Horizon Containment - 30 JUN.ppt Microsoft PowerPoint - Deepwater Horizon Containment - 30 JUN.ppt More...

  15. Deepwater Horizon Oil Spill; Draft Programmatic and Phase III Early

    E-Print Network [OSTI]

    Deepwater Horizon Oil Spill; Draft Programmatic and Phase III Early Restoration Plan of the Deepwater Horizon oil spill. The restoration alternatives are comprised of early restoration project types Addressing Injuries Resulting from the Deepwater Horizon Oil Spill (Framework Agreement). Criteria

  16. ARM - Contacts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492air Comments? We would love to heargovInstrumentstdma Comments?HistoryArcticContact Information

  17. ARM - Contacts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492air Comments? We would love to heargovInstrumentstdma Comments?HistoryArcticContact

  18. Contact Information

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContact Information · President

  19. Media contact:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home andDispositionMechanical R&D Contact:1March 16,

  20. A study of different horizons in inhomogeneous LTB cosmological model

    E-Print Network [OSTI]

    Subenoy Chakraborty; Subhajit Saha

    2015-03-04T23:59:59.000Z

    This work deals with a detailed study of the dynamics of the apparent, event and particle horizons in the background of the inhomogeneous LTB spacetime. The comparative study among these horizons shows a distinct character for apparent horizon compared to the other horizons. The apparent horizon will be a trapping horizon if its acceleration is positive. The Kodama vector is also defined and its causal character is found to be similar to that in the FRW model.

  1. Green Investment Horizons: Effects of Policy on the Market for...

    Open Energy Info (EERE)

    Horizons: Effects of Policy on the Market for Building Energy Efficiency Technologies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Green Investment Horizons: Effects...

  2. New Horizons Mission Powered by Space Radioisotope Power Systems...

    Energy Savers [EERE]

    New Horizons Mission Powered by Space Radioisotope Power Systems New Horizons Mission Powered by Space Radioisotope Power Systems January 30, 2008 - 6:47pm Addthis Artist's concept...

  3. Locating Boosted Kerr and Schwarzschild Apparent Horizons

    E-Print Network [OSTI]

    Mijan F. Huq; Matthew W. Choptuik; Richard A. Matzner

    2000-02-22T23:59:59.000Z

    We describe a finite-difference method for locating apparent horizons and illustrate its capabilities on boosted Kerr and Schwarzschild black holes. Our model spacetime is given by the Kerr-Schild metric. We apply a Lorentz boost to this spacetime metric and then carry out a 3+1 decomposition. The result is a slicing of Kerr/Schwarzschild in which the black hole is propagated and Lorentz contracted. We show that our method can locate distorted apparent horizons efficiently and accurately.

  4. Critical play : alien contact

    E-Print Network [OSTI]

    Jung, Jaekyung

    2010-01-01T23:59:59.000Z

    I argue that the necessity of emancipating the Situationist International (SI) from the historical notion of it as the last movement of the avant-garde in order to take over the spirit of the SI. I claim that necessity of ...

  5. Revisiting Gribov's Copies Inside The Horizon

    E-Print Network [OSTI]

    R. R. Landim; V. E. R. Lemes; O. S. Ventura; L. C. Q. Vilar

    2014-12-08T23:59:59.000Z

    In this work, we recover the problem of legitimate topologically trivial Gribov copies inside the Gribov horizon. We avoid the reducibility problem which hampered the standard construction of van Baal, and then we are able to build a valid example with spherical symmetry. We also apply the same technique in the presence of a background of a Polyakov instanton in a Euclidian 3D spacetime, in order to study the effect of a non trivial environment in the generation of multiple copies inside the horizon.

  6. Horizon Wind 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtel Jump to:Pennsylvania: EnergyHopkinsville, Kentucky:HorizonHorizon

  7. Chemical Management Contacts

    Broader source: Energy.gov [DOE]

    Contacts for additional information on Chemical Management and brief description on Energy Facility Contractors Group

  8. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    .S. Department of Energy SunShot Initiative calls for an aggressive reduction in the overall systems costs by 75 year for solar with the U.S. surpassing the 10 GW milestone. While the initial cost reductionswww.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES Towards Ubiquitous Cost- competitive Solar Power

  9. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    ) but will largely ignore the false alarms about genetically modified foods ("frankenfoods"), thimerosal in vaccineswww.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES Nanotechnology and Food Safety "Pigs oink, dogsYoung, is likely very prescient when it comes to the subject of nanotechnology and the food supply. Although FDA

  10. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    ,weareseeinganincreasinginvestmentinrenew- able energies, like wind and solar. The development of new technologies leading to a clean energyKellerwasappointedtotheroleofAssociateLaboratoryDirectoratOakRidgeNationalLaboratory(ORNL), on July 1, 2009. On November 1, 2010, a new directorate was formed, Energy and Environmental Scienceswww.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES From Environmental Science to Next Generation

  11. Cauchy horizon singularity without mass inflation

    E-Print Network [OSTI]

    P. R. Brady; D. Nunez; S. Sinha

    1992-11-20T23:59:59.000Z

    A perturbed Reissner-Nordstr\\"om-de Sitter solution is used to emphasize the nature of the singularity along the Cauchy horizon of a charged spherically symmetric black hole. For these solutions, conditions may prevail under which the mass function is bounded and yet the curvature scalar $R_{\\alpha\\beta\\gamma\\delta} R^{\\alpha\\beta\\gamma\\delta}$ diverges.

  12. Fiber-optical analogue of the event horizon: Appendices

    E-Print Network [OSTI]

    Thomas G. Philbin; Chris Kuklewicz; Scott Robertson; Stephen Hill; Friedrich Konig; Ulf Leonhardt

    2007-12-13T23:59:59.000Z

    We explain the theory behind our fiber-optical analogue of the event horizon and present the experiment in detail.

  13. Horizons in Robinson-Trautman space-times

    E-Print Network [OSTI]

    W. Natorf; J. Tafel

    2008-07-18T23:59:59.000Z

    The past quasi-local horizons in vacuum Robinson-Trautman spacetimes are described. The case of a null (non-expanding) horizon is discussed. It is shown that the only Robinson-Trautman space-time admitting such a horizon with sections diffeomorphic to S_2 is the Schwarzschild space-time. Weakening this condition leads to the horizons of the C-metric. Properties of the hypersurface r=2m for finite retarded time u are examined.

  14. Apparent Horizons in Vacuum Robinson-Trautman Spacetimes

    E-Print Network [OSTI]

    E. W. M. Chow; A. W. -C. Lun

    1995-04-01T23:59:59.000Z

    Vacuum asymptotically flat Robinson-Trautman spacetimes are a well known class of spacetimes exhibiting outgoing gravitational radiation. In this paper we describe a method of locating the past apparent horizon in these spacetimes, and discuss the properties of the horizon. We show that the past apparent horizon is non-timelike, and that its surface area is a decreasing function of the retarded time. A numerical simulation of the apparent horizon is also discussed.

  15. Animal Spirits: How Human Psychology Drives the Economy, and Why It Matters for Global Capitalism

    ScienceCinema (OSTI)

    Robert J. Shiller

    2010-09-01T23:59:59.000Z

    In his lecture, Shiller discusses the premise of his 2009 book, coauthored with the Nobel Prize-winning economist George A. Akerlof. The book discusses how ?animal spirits,? or human emotions such as confidence, fear, and a concern for fairness, drive financial events, including today?s global financial crisis.

  16. Joint Information CenterJoint Information Center Deepwater Horizon Response

    E-Print Network [OSTI]

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

  17. Hazardous Materials Alert Departmental Contact(s)

    E-Print Network [OSTI]

    Hickman, Mark

    Hazardous Materials Alert Departmental Contact(s): Name ___________________________________________________________________________________ Hazardous Materials Alert If the release of a hazardous chemical or gas is affecting people in your area yourself at risk. 2. isOlATE the hazardous material by clearing the area, close the doors. If safe to do so

  18. Fiber-optical analogue of the event horizon

    E-Print Network [OSTI]

    Thomas G. Philbin; Chris Kuklewicz; Scott Robertson; Stephen Hill; Friedrich Konig; Ulf Leonhardt

    2008-02-13T23:59:59.000Z

    The physics at the event horizon resembles the behavior of waves in moving media. Horizons are formed where the local speed of the medium exceeds the wave velocity. We use ultrashort pulses in microstructured optical fibers to demonstrate the formation of an artificial event horizon in optics. We observed a classical optical effect, the blue-shifting of light at a white-hole horizon. We also show by theoretical calculations that such a system is capable of probing the quantum effects of horizons, in particular Hawking radiation.

  19. Overview of the New Horizons Science Payload

    E-Print Network [OSTI]

    H. A. Weaver; W. C. Gibson; M. B. Tapley; L. A. Young; S. A. Stern

    2007-09-26T23:59:59.000Z

    The New Horizons mission was launched on 2006 January 19, and the spacecraft is heading for a flyby encounter with the Pluto system in the summer of 2015. The challenges associated with sending a spacecraft to Pluto in less than 10 years and performing an ambitious suite of scientific investigations at such large heliocentric distances (> 32 AU) are formidable and required the development of lightweight, low power, and highly sensitive instruments. This paper provides an overview of the New Horizons science payload, which is comprised of seven instruments. Alice provides spatially resolved ultraviolet spectroscopy. The Ralph instrument has two components: the Multicolor Visible Imaging Camera (MVIC), which performs panchromatic and color imaging, and the Linear Etalon Imaging Spectral Array (LEISA), which provides near-infrared spectroscopic mapping capabilities. The Radio Experiment (REX) is a component of the New Horizons telecommunications system that provides both occultation and radiometry capabilities. The Long Range Reconnaissance Imager (LORRI) provides high sensitivity, high spatial resolution optical imaging capabilities. The Solar Wind at Pluto (SWAP) instrument measures the density and speed of solar wind particles. The Pluto Energetic Particle Spectrometer Science Investigation (PEPSSI) measures energetic protons and CNO ions. The Venetia Burney Student Dust Counter (VB-SDC) is used to record dust particle impacts during the cruise phases of the mission.

  20. The Event Horizon of M87

    E-Print Network [OSTI]

    Avery E. Broderick; Ramesh Narayan; John Kormendy; Eric S. Perlman; Marcia J. Rieke; Sheperd S. Doeleman

    2015-03-12T23:59:59.000Z

    The 6 billion solar mass supermassive black hole at the center of the giant elliptical galaxy M87 powers a relativistic jet. Observations at millimeter wavelengths with the Event Horizon Telescope have localized the emission from the base of this jet to angular scales comparable to the putative black hole horizon. The jet might be powered directly by an accretion disk or by electromagnetic extraction of the rotational energy of the black hole. However, even the latter mechanism requires a confining thick accretion disk to maintain the required magnetic flux near the black hole. Therefore, regardless of the jet mechanism, the observed jet power in M87 implies a certain minimum mass accretion rate. If the central compact object in M87 were not a black hole but had a surface, this accretion would result in considerable thermal near-infrared and optical emission from the surface. Current flux limits on the nucleus of M87 strongly constrain any such surface emission. This rules out the presence of a surface and thereby provides indirect evidence for an event horizon.

  1. The Event Horizon of M87

    E-Print Network [OSTI]

    Avery E. Broderick; Ramesh Narayan; John Kormendy; Eric S. Perlman; Marcia J. Rieke; Sheperd S. Doeleman

    2015-04-05T23:59:59.000Z

    The 6 billion solar mass supermassive black hole at the center of the giant elliptical galaxy M87 powers a relativistic jet. Observations at millimeter wavelengths with the Event Horizon Telescope have localized the emission from the base of this jet to angular scales comparable to the putative black hole horizon. The jet might be powered directly by an accretion disk or by electromagnetic extraction of the rotational energy of the black hole. However, even the latter mechanism requires a confining thick accretion disk to maintain the required magnetic flux near the black hole. Therefore, regardless of the jet mechanism, the observed jet power in M87 implies a certain minimum mass accretion rate. If the central compact object in M87 were not a black hole but had a surface, this accretion would result in considerable thermal near-infrared and optical emission from the surface. Current flux limits on the nucleus of M87 strongly constrain any such surface emission. This rules out the presence of a surface and thereby provides indirect evidence for an event horizon.

  2. Falling through the black hole horizon

    E-Print Network [OSTI]

    Brustein, Ram

    2015-01-01T23:59:59.000Z

    We consider the fate of a small classical object, a "stick", as it falls through the horizon of a large black hole (BH). Classically, the equivalence principle dictates that the stick is affected by small tidal forces, and Hawking's quantum-mechanical model of BH evaporation makes essentially the same prediction. If, on the other hand, the BH horizon is surrounded by a "firewall", the stick will be consumed as it falls through. We have recently extended Hawking's model by taking into account the quantum fluctuations of the geometry and the classical back-reaction of the emitted particles. Here, we calculate the strain exerted on the falling stick for our model. The strain depends on the near-horizon state of the Hawking pairs. We find that, after the Page time when the state of the pairs deviates significantly from maximal entanglement (as required by unitarity), the induced strain in our semiclassical model is still parametrically small. This is because the number of the disentangled pairs is parametrically ...

  3. The Space Infrared Interferometric Telescope (SPIRIT): High-resolution imaging and spectroscopy in the far-infrared

    E-Print Network [OSTI]

    David Leisawitz; Charles Baker; Amy Barger; Dominic Benford; Andrew Blain; Rob Boyle; Richard Broderick; Jason Budinoff; John Carpenter; Richard Caverly; Phil Chen; Steve Cooley; Christine Cottingham; Julie Crooke; Dave DiPietro; Mike DiPirro; Michael Femiano; Art Ferrer; Jacqueline Fischer; Jonathan P. Gardner; Lou Hallock; Kenny Harris; Kate Hartman; Martin Harwit; Lynne Hillenbrand; Tupper Hyde; Drew Jones; Jim Kellogg; Alan Kogut; Marc Kuchner; Bill Lawson; Javier Lecha; Maria Lecha; Amy Mainzer; Jim Mannion; Anthony Martino; Paul Mason; John Mather; Gibran McDonald; Rick Mills; Lee Mundy; Stan Ollendorf; Joe Pellicciotti; Dave Quinn; Kirk Rhee; Stephen Rinehart; Tim Sauerwine; Robert Silverberg; Terry Smith; Gordon Stacey; H. Philip Stahl; Johannes Staguhn; Steve Tompkins; June Tveekrem; Sheila Wall; Mark Wilson

    2007-07-05T23:59:59.000Z

    We report results of a recently-completed pre-Formulation Phase study of SPIRIT, a candidate NASA Origins Probe mission. SPIRIT is a spatial and spectral interferometer with an operating wavelength range 25 - 400 microns. SPIRIT will provide sub-arcsecond resolution images and spectra with resolution R = 3000 in a 1 arcmin field of view to accomplish three primary scientific objectives: (1) Learn how planetary systems form from protostellar disks, and how they acquire their inhomogeneous composition; (2) characterize the family of extrasolar planetary systems by imaging the structure in debris disks to understand how and where planets of different types form; and (3) learn how high-redshift galaxies formed and merged to form the present-day population of galaxies. Observations with SPIRIT will be complementary to those of the James Webb Space Telescope and the ground-based Atacama Large Millimeter Array. All three observatories could be operational contemporaneously.

  4. Thermoelectric DC conductivities from black hole horizons

    E-Print Network [OSTI]

    Aristomenis Donos; Jerome P. Gauntlett

    2014-10-14T23:59:59.000Z

    An analytic expression for the DC electrical conductivity in terms of black hole horizon data was recently obtained for a class of holographic black holes exhibiting momentum dissipation. We generalise this result to obtain analogous expressions for the DC thermoelectric and thermal conductivities. We illustrate our results using some holographic Q-lattice black holes as well as for some black holes with linear massless axions, in both $D=4$ and $D=5$ bulk spacetime dimensions, which include both spatially isotropic and anisotropic examples. We show that some recently constructed ground states of holographic Q-lattices, which can be either electrically insulating or metallic, are all thermal insulators.

  5. Inflationary Axion Cosmology Beyond Our Horizon

    E-Print Network [OSTI]

    David B. Kaplan; Ann E. Nelson

    2008-09-07T23:59:59.000Z

    In theories of axion dark matter with large axion decay constant, temperature variations in the CMB are extremely sensitive to perturbations in the initial axion field, allowing one to place a lower bound on the total amount of inflation. The most stringent bound comes from axion strings, which for axion decay constant f=10^17 GeV would currently be observable at a distance of 6 x 10^16 light-years, nearly ten million times as far away as our horizon.

  6. ARM: W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

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

    Widener, Kevin; Nelson, Dan; Bharadwaj, Nitin; Lindenmaier, Iosif [Andrei; Johnson, Karen

    W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  7. ARM: X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

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

    Widener, Kevin; Nelson, Dan; Bharadwaj, Nitin; Lindenmaier, Iosif [Andrei; Johnson, Karen

    X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  8. ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

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

    Bharadwaj, Nitin; Widener, Kevin

    Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  9. Black Hole Initial Data with a Horizon of Prescribed Geometry

    E-Print Network [OSTI]

    Brian Smith

    2007-10-04T23:59:59.000Z

    The purpose of this work is to construct asymptotically flat, time symmetric initial data with an apparent horizon of prescribed intrinsic geometry. To do this, we use the parabolic partial differential equation for prescribing scalar curvature. In this equation the horizon geometry is contained within the freely specifiable part of the metric. This contrasts with the conformal method in which the geometry of the horizon can only be specified up to a conformal factor.

  10. Physical process first law and caustic avoidance for Rindler horizon

    E-Print Network [OSTI]

    Srijit Bhattacharjee; Sudipta Sarkar

    2014-12-03T23:59:59.000Z

    We study the perturbation induced by a slowly rotating massive object as it passes through a Rindler horizon. It is shown that the passage of this object can be approximately modeled as Delta\\,function type tidal distortions hitting the horizon. Further, following the analysis presented by Amsel, Marolf and Virmani related to the issue of the validity of physical process first law, we establish a condition on the size of the object so that this law holds for the Rindler horizon.

  11. Isolated Horizons: A Generalization of Black Hole Mechanics

    E-Print Network [OSTI]

    Abhay Ashtekar; Christopher Beetle; Stephen Fairhurst

    1998-12-18T23:59:59.000Z

    A set of boundary conditions defining a non-rotating isolated horizon are given in Einstein-Maxwell theory. A space-time representing a black hole which itself is in equilibrium but whose exterior contains radiation admits such a horizon . Physically motivated, (quasi-)local definitions of the mass and surface gravity of an isolated horizon are introduced. Although these definitions do not refer to infinity, the quantities assume their standard values in Reissner-Nordstrom solutions. Finally, using these definitions, the zeroth and first laws of black hole mechanics are established for isolated horizons.

  12. Climate VISION: Contact Us

    Office of Scientific and Technical Information (OSTI)

    of Energy Office of Climate Change Policy and Technology (PI-50) 202-586-8339 Mining - Contacts Association Climate VISION Lead Constance Holmes Senior Economist, Director...

  13. Contacts | Argonne National Laboratory

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

    Contacts Postdoc Portal The Postdoctoral Office of Argonne provides all Postdocs at Argonne access to our sharepoint postdoc site. This site has information about special...

  14. Coral contact dermatitis

    E-Print Network [OSTI]

    Jefferson, Julie; Thompson, Curtis; Hinshaw, Molly; Rich, Phoebe

    2015-01-01T23:59:59.000Z

    skin reaction to Red Sea coral injury showing superficial11736921] 5. Addy JH. Red sea coral contact dermatitis. Inthypersensitivity reaction to coral. J Am Acad Dermatol. 2005

  15. Federal NEPA Contacts

    Broader source: Energy.gov [DOE]

    CEQ and most Federal agencies identify primary points of contact for NEPA compliance. Normally a senior environmental professional, environmental law attorney, or member of agency leadership, these...

  16. Gribov's horizon and the ghost dressing function

    E-Print Network [OSTI]

    Boucaud, Ph; Yaouanc, A Le; Micheli, J; Pène, O; Rodríguez-Quintero, J

    2009-01-01T23:59:59.000Z

    We study a relation recently derived by K. Kondo at zero momentum between the Zwanziger's horizon function, the ghost dressing function and Kugo's functions $u$ and $w$. We agree with this result as far as bare quantities are considered. However, assuming the validity of the horizon gap equation, we argue that the solution $w(0)=0$ is not acceptable since it would lead to a vanishing renormalised ghost dressing function. On the contrary, when the cut-off goes to infinity, $u(0) \\to \\infty$, $w(0) \\to -\\infty$ such that $u(0)+w(0) \\to -1$. Furthermore $w$ and $u$ are not multiplicatively renormalisable. Relaxing the gap equation allows $w(0)=0$ with $u(0) \\to -1$. In both cases the bare ghost dressing function, $F(0,\\Lambda)$, goes logarithmically to infinity at infinite cut-off. We show that, although the lattice results provide bare results not so different from the $F(0,\\Lambda)=3$ solution, this is an accident due to the fact that the lattice cut-offs lie in the range 1-3 GeV$^{-1}$. We show that the renor...

  17. The Event Horizon of M87

    E-Print Network [OSTI]

    Narayan, Ramesh; Perlman, Eric S; Rieke, Marcia J; Doeleman, Sheperd S

    2015-01-01T23:59:59.000Z

    The 6 billion solar mass supermassive black hole at the center of the giant elliptical galaxy M87 powers a relativistic jet. Observations at millimeter wavelengths with the Event Horizon Telescope have localized the emission from the base of this jet to angular scales comparable to the putative black hole horizon. The jet might be powered directly by an accretion disk or by electromagnetic extraction of the rotational energy of the black hole. However, even the latter mechanism requires a confining thick accretion disk to maintain the required magnetic flux near the black hole. Therefore, regardless of the jet mechanism, the observed jet power in M87 implies a certain minimum mass accretion rate. If the central compact object in M87 were not a black hole but had a surface, this accretion would result in considerable thermal near-infrared and optical emission from the surface. Current flux limits on the nucleus of M87 strongly constrain any such surface emission. This rules out the presence of a surface and th...

  18. Air-Shower Spectroscopy at horizons

    E-Print Network [OSTI]

    D. Fargion

    2005-11-20T23:59:59.000Z

    Horizontal and Upward air-showers are suppressed by deep atmosphere opacity and by the Earth shadows. In such noise-free horizontal and upward directions rare Ultra High Cosmic rays and rarer neutrino induced air-showers may shine, mostly mediated by resonant PeVs interactions in air or by higher energy Tau Air-showers originated by neutrino tau skimming the Earth. At high altitude (mountains, planes, balloons) the air density is so rarefied that nearly all common air-showers might be observed at their maximal growth at a tuned altitude and directions. The arrival angle samples different distances and the corresponding most probable primary cosmic ray energy. The larger and larger distances (between observer and C.R. interaction) make wider and wider the shower area and it enlarge the probability to be observed (up to three order of magnitude more than vertical showers); the observation of a maximal electromagnetic shower development may amplify the signal by two-three order of magnitude (respect suppressed shower at sea level); the peculiar altitude-angle range may disentangle at best the primary cosmic ray energy and composition. Even from existing mountain observatory the up-going air-showers may trace, above the horizons, PeV-EeV high energy cosmic rays and, below the horizons, PeV-EeV neutrino astronomy: their early signals may be captured in already existing gamma telescopes as Magic at Canarie, while facing the Earth edges during (useless) cloudy nights.

  19. Cool horizons lead to information loss

    E-Print Network [OSTI]

    Borun D. Chowdhury

    2013-07-29T23:59:59.000Z

    There are two evidences for information loss during black hole evaporation: (i) a pure state evolves to a mixed state and (ii) the map from the initial state to final state is non-invertible. Any proposed resolution of the information paradox must address both these issues. The firewall argument focuses only on the first and this leads to order one deviations from the Unruh vacuum for maximally entangled black holes. The nature of the argument does not extend to black holes in pure states. It was shown by Avery, Puhm and the author that requiring the initial state to final state map to be invertible mandates structure at the horizon even for pure states. The proof works if black holes can be formed in generic states and in this paper we show that this is indeed the case. We also demonstrate how models proposed by Susskind, Papadodimas et al. and Maldacena et al. end up making the initial to final state map non-invertible and thus make the horizon "cool" at the cost of unitarity.

  20. Controller Synthesis for Constrained Flight Systems via Receding Horizon Optimization

    E-Print Network [OSTI]

    Murray, Richard M.

    Controller Synthesis for Constrained Flight Systems via Receding Horizon Optimization Richard M stabilize flight systems us- ing receding horizon, optimal control.1,8 This pa- per advocates the use functions at the inner and outer loop levels and significantly enhances the ability of the control system

  1. Organic Aerosol Formation Downwind from the Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    Toohey, Darin W.

    Organic Aerosol Formation Downwind from the Deepwater Horizon Oil Spill Nicole ONeill - ATOC 3500 and aerosol composition of air over the Deepwater Horizon oil spill in the Gulf of Mexico. · The lightest chemicals in the oil evaporated within hours, as scientists expected them to do. What they didn't expect

  2. Finite-Horizon Optimal Transmission Policies for Energy Harvesting Sensors

    E-Print Network [OSTI]

    Jagannathan, Krishna

    Finite-Horizon Optimal Transmission Policies for Energy Harvesting Sensors Rahul Vaze School: krishnaj@ee.iitm.ac.in Abstract--In this paper, we derive optimal transmission poli- cies for energy harvesting sensors to maximize the utility obtained over a finite horizon. First, we consider a single energy

  3. Airships: A New Horizon for Science

    E-Print Network [OSTI]

    Miller, Sarah H; Hillenbrand, Lynne; Rhodes, Jason; Baird, Gil; Blake, Geoffrey; Booth, Jeff; Carlile, David E; Duren, Riley; Edworthy, Frederick G; Freeze, Brent; Friedl, Randall R; Goldsmith, Paul F; Hall, Jeffery L; Hoffman, Scott E; Hovarter, Scott E; Jensen-Clem, Rebecca M; Jones, Ross M; Kauffmann, Jens; Kiessling, Alina; King, Oliver G; Konidaris, Nick; Lachenmeier, Timothy L; Lord, Steven D; Neu, Jessica; Quetin, Gregory R; Ram, Alan; Sander, Stanley; Simard, Marc; Smith, Mike; Smith, Steve; Smoot, Sara; Susca, Sara; Swann, Abigail; Young, Eliot F; Zambrano, Thomas

    2014-01-01T23:59:59.000Z

    The "Airships: A New Horizon for Science" study at the Keck Institute for Space Studies investigated the potential of a variety of airships currently operable or under development to serve as observatories and science instrumentation platforms for a range of space, atmospheric, and Earth science. The participants represent a diverse cross-section of the aerospace sector, NASA, and academia. Over the last two decades, there has been wide interest in developing a high altitude, stratospheric lighter-than-air (LTA) airship that could maneuver and remain in a desired geographic position (i.e., "station-keeping") for weeks, months or even years. Our study found considerable scientific value in both low altitude ( 60 kft) airships across a wide spectrum of space, atmospheric, and Earth science programs. Over the course of the study period, we identified stratospheric tethered aerostats as a viable alternative to airships where station-keeping was valued over maneuverability. By opening up the sky and Earth's strato...

  4. Thermodynamics of apparent horizon and modified Friedman equations

    E-Print Network [OSTI]

    Ahmad Sheykhi

    2010-12-02T23:59:59.000Z

    Starting from the first law of thermodynamics, $dE=T_hdS_h+WdV$, at apparent horizon of a FRW universe, and assuming that the associated entropy with apparent horizon has a quantum corrected relation, $S=\\frac{A}{4G}-\\alpha \\ln \\frac{A}{4G}+\\beta \\frac{4G}{A}$, we derive modified Friedmann equations describing the dynamics of the universe with any spatial curvature. We also examine the time evolution of the total entropy including the quantum corrected entropy associated with the apparent horizon together with the matter field entropy inside the apparent horizon. Our study shows that, with the local equilibrium assumption, the generalized second law of thermodynamics is fulfilled in a region enclosed by the apparent horizon.

  5. Contact Us - Hanford Site

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

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

  6. Contact Us | Geothermal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContactAboutContact Us Contact

  7. Contact | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us Contact Us Please|Contact

  8. Horizon news function and quasi-local energy-momentum flux near black hole

    E-Print Network [OSTI]

    Yu-Huei Wu

    2007-03-27T23:59:59.000Z

    From the 'quasi-local' definition of horizons, e.g. isolated horizon and dynamical horizon, the consequence quasi-local energy-momentum near horizons can be observed by using the idea of frame alignment. In particular, we find the horizon news function from the asymptotic expansion near horizons and use this to describe the gravitational flux and change of mass of a black hole.

  9. NREL: Library - Contacts

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

    of the Information Commons at the National Renewable Energy Laboratory. Contact the library if you need assistance. Phone: 303-275-4215 E-mail: Library@nrel.gov 15013 Denver...

  10. Contact thermal lithography

    E-Print Network [OSTI]

    Schmidt, Aaron Jerome, 1979-

    2004-01-01T23:59:59.000Z

    Contact thermal lithography is a method for fabricating microscale patterns using heat transfer. In contrast to photolithography, where the minimum achievable feature size is proportional to the wavelength of light used ...

  11. SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel...

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

    Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). SunLine Expands Horizons...

  12. Media Contacts | Argonne National Laboratory

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

    Media Contacts Christopher J. Kramer Argonne National Laboratory Christopher J. Kramer is the manager of media relations and external affairs for Argonne. Contact him at...

  13. Contact urticaria to raw potato

    E-Print Network [OSTI]

    Lagrán, Z Martínez de; Frutos, FJ Ortiz de; Arribas, M González de; Vanaclocha-Sebastián, F

    2009-01-01T23:59:59.000Z

    allergen in latex-induced potato allergy. Ann Allergy Asthmaof allergy to cooked potatoes in children. Allergy 2007;62(contact dermatitis from potato flesh. Contact Dermatitis

  14. Organization Chart and Contacts | Department of Energy

    Office of Environmental Management (EM)

    About the Fuel Cell Technologies Office Organization Chart and Contacts Organization Chart and Contacts Organization Chart and Contacts Contact Information U.S. Department of...

  15. Renewable Energy Contacts | Department of Energy

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

    Contacts Renewable Energy Contacts For more information about renewable energy, contact: Contact Organization Specialty Jesse Gary 202-287-1850 Federal Energy Management Program...

  16. Perturbative String Thermodynamics near Black Hole Horizons

    E-Print Network [OSTI]

    Thomas G. Mertens; Henri Verschelde; Valentin I. Zakharov

    2014-10-29T23:59:59.000Z

    We provide further computations and ideas to the problem of near-Hagedorn string thermodynamics near (uncharged) black hole horizons, building upon our earlier work JHEP 1403 (2014) 086. The relevance of long strings to one-loop black hole thermodynamics is emphasized. We then provide an argument in favor of the absence of $\\alpha'$-corrections for the (quadratic) heterotic thermal scalar action in Rindler space. We also compute the large $k$ limit of the cigar orbifold partition functions (for both bosonic and type II superstrings) which allows a better comparison between the flat cones and the cigar cones. A discussion is made on the general McClain-Roth-O'Brien-Tan theorem and on the fact that different torus embeddings lead to different aspects of string thermodynamics. The black hole/string correspondence principle for the 2d black hole is discussed in terms of the thermal scalar. Finally, we present an argument to deal with arbitrary higher genus partition functions, suggesting the breakdown of string perturbation theory (in $g_s$) to compute thermodynamical quantities in black hole spacetimes.

  17. A note on electrical and thermodynamic properties of Isolated Horizon

    E-Print Network [OSTI]

    Gerui Chen; Xiaoning Wu; Sijie Gao

    2014-10-29T23:59:59.000Z

    The electrical laws and Carnot cycle of Isolated Horizon (IH) are investigated in this paper. We establish the Ohm's law and Joule's law of an Isolated Horizon, and find that the conceptual picture of black holes (Membrane Paradigm) can also apply to this kind of quasi-local black holes. We also investigate the geometrical properties near a non-rotating IH, and find that under the first-order approximation of r, there exist a Killing vector and a Hamiltonian conjugate to it, so this vector is a physical observer. We calculate the energy as measured at infinity of a particle at rest outside a non-rotating IH, and use this result to construct a reversible Carnot cycle with the Isolated Horizon as a cold reservoir, which confirms the thermodynamic nature of Isolated Horizon.

  18. A note on electrical and thermodynamic properties of Isolated Horizon

    E-Print Network [OSTI]

    Chen, Gerui; Gao, Sijie

    2014-01-01T23:59:59.000Z

    The electrical laws and Carnot cycle of Isolated Horizon (IH) are investigated in this paper. We establish the Ohm's law and Joule's law of an Isolated Horizon, and find that the conceptual picture of black holes (Membrane Paradigm) can also apply to this kind of quasi-local black holes. We also investigate the geometrical properties near a non-rotating IH, and find that under the first-order approximation of r, there exist a Killing vector and a Hamiltonian conjugate to it, so this vector is a physical observer. We calculate the energy as measured at infinity of a particle at rest outside a non-rotating IH, and use this result to construct a reversible Carnot cycle with the Isolated Horizon as a cold reservoir, which confirms the thermodynamic nature of Isolated Horizon.

  19. Green functions and Euclidean fields near the bifurcate Killing horizon

    E-Print Network [OSTI]

    Z. Haba

    2007-08-13T23:59:59.000Z

    We approximate a Euclidean version of a D+1 dimensional manifold with a bifurcate Killing horizon by a product of a two-dimensional Rindler space and a D-1 dimensional manifold M. We obtain approximate formulas for the Green functions. We study the behaviour of Green functions near the horizon and their dimensional reduction. We show that if M is compact then the massless minimally coupled quantum field contains a zero mode which is a conformal invariant free field on R^2. Then, the Green function near the horizon can be approximated by the Green function of the two-dimensional quantum field theory. The correction term is exponentially small away from the horizon. If the volume of a geodesic ball is growing to infinity with its radius then the Green function cannot be approximated by a two-dimensional one.

  20. Acoustic measurement of the Deepwater Horizon Macondo well flow rate

    E-Print Network [OSTI]

    Camilli, Richard

    On May 31, 2010, a direct acoustic measurement method was used to quantify fluid leakage rate from the Deepwater Horizon Macondo well prior to removal of its broken riser. This method utilized an acoustic imaging sonar and ...

  1. Effect of time horizon on incremental cost-effectiveness ratios

    E-Print Network [OSTI]

    Sondhi, Manu

    2005-01-01T23:59:59.000Z

    Background: Estimation of cost-effectiveness of a therapy as compared with another, in healthcare, is often based on a single perspective and a single time horizon. In this thesis, I explored methods of extrapolating the ...

  2. Predictive energy management for hybrid electric vehicles -Prediction horizon and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Predictive energy management for hybrid electric vehicles - Prediction horizon and battery capacity of a combined hybrid electric vehicle. Keywords: Hybrid vehicles, Energy Management, Predictive control, Optimal predictive energy management realistic. This energy management strategy uses a dynamic programming algorithm

  3. Approximate Dynamic Programming for a Class of Long-Horizon ...

    E-Print Network [OSTI]

    2014-04-06T23:59:59.000Z

    require hours to produce good solutions even when the planning horizon is 90 ... Surveys of general IRPs for all modes of transportation are given in [1] and [9]. .... Dynamic fleet management problems are a special case in this problem class.

  4. Can an evolving Universe host a static event horizon?

    E-Print Network [OSTI]

    Aharon Davidson; Shimon Rubin; Yosef Verbin

    2012-11-09T23:59:59.000Z

    We prove the existence of general relativistic perfect fluid black hole solutions, and demonstrate the phenomenon for the $P=w\\rho$ class of equations of state. While admitting a local time-like Killing vector on the event horizon itself, the various black hole configurations are necessarily time dependent (thereby avoiding a well known no-go theorem) away from the horizon. Consistently, Hawking's imaginary time periodicity is globally manifest on the entire spacetime manifold.

  5. Contacts - EERE Commercialization Office

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

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

  6. Contact Us | DOEpatents

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronic Input Options Garyand TechnicalAboutContact Us Contact Us If you have a

  7. Contact: Nathan Howard

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us ContactNathan Howard

  8. Contacts & Resources

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us ContactNathan

  9. US ITER | Contact Us

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

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

  10. Contact - Cyclotron Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite Map Homehome / Contact ToContact

  11. Contact Us - Hanford Site

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite Map HomehomeContact Us Contact Us

  12. Contact Us - Pantex Plant

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite Map HomehomeContact Us Contact

  13. Universal thermodynamics in different gravity theories: Modified entropy on the horizons

    E-Print Network [OSTI]

    Saugata Mitra; Subhajit Saha; Subenoy Chakraborty

    2015-03-10T23:59:59.000Z

    The paper deals with universal thermodynamics for FRW model of the universe bounded by apparent (or event) horizon. Assuming Hawking temperature on the horizon, the unified first law is examined on the horizon for different gravity theories. The results show that equilibrium configuration is preserved with a modification to Bekenstein entropy on the horizon.

  14. Renewable Energy Feasibility Study Leading to Development of the Native Spirit Solar Energy Facility

    SciTech Connect (OSTI)

    Carolyn Stewart; Tracey LeBeau

    2008-01-31T23:59:59.000Z

    DOE-funded renewable energy feasibility study conducted by Red Mountain Tribal Energy on behalf of the Southwest Tribal Energy Consortium (SWTEC). During the course of the study, SWTEC members considered multiple options for the organization structure, selected a proposed organization structure, and drafted a Memorandum of Understanding for the SWTEC organization. High-level resource assessments for SWTEC members were completed; surveys were developed and completed to determine each member’s interest in multiple participation options, including on-reservation projects. With the survey inputs in mind, multiple energy project options were identified and evaluated on a high-level basis. That process led to a narrowing of the field of technology options to solar generation, specifically, utility-scale Concentrating Solar-Powered Generation projects, with a specific, tentative project location identified at the Fort Mojave Indian Reservation -- the Native Spirit Solar Energy Facility.

  15. Technology Advertising Contact Information

    E-Print Network [OSTI]

    Peters, Richard

    Overview #12;Technology Advertising Contact Information Alex Sheath 8596 4063 asheath Overview Our online Technology section is geared towards an IT professional environment, reaching a range of technology enthusiasts from every day gadget consumers to business decision makers where enterprise solutions

  16. Secure Core Contact Information

    E-Print Network [OSTI]

    Secure Core Contact Information C. E. Irvine irvine@nps.edu 831-656-2461 Department of Computer for the secure management of local and/or remote information in multiple contexts. The SecureCore project Science Graduate School of Operations and Information Sciences www.cisr.nps.edu Project Description

  17. Acceleration of particles near the inner black hole horizon

    E-Print Network [OSTI]

    O. B. Zaslavskii

    2011-12-16T23:59:59.000Z

    We study the possibility of obtaining unbound energy E_{c.m.} in the centre of mass frame when two particles collide near the inner black hole horizon. We consider two different cases - when both particles move (i) in the same direction or (ii) in the opposite ones. We also discuss two different versions of the effect - whether an infinite energy can be released in the collision (strong version) or the energy E_{c.m.} is finite but can be made as large as one likes (weak version). We demonstrate that the strong version of the effect is impossible in both cases (i) and (ii). In case (i) this is due to the fact that in the situation when E_{c.m.} formally diverges on the horizon, one of particles passes through the bifurcation point where two horizons meet while the second particle does not, so collision does not occur. In case (ii), both particles hit different branches of the horizon. The weak version is possible in both cases, provided at least one of particles starts its motion inside the horizon along the direction of spatial symmetry from infinity.

  18. Nearly extremal apparent horizons in simulations of merging black holes

    E-Print Network [OSTI]

    Geoffrey Lovelace; Mark A. Scheel; Robert Owen; Matthew Giesler; Reza Katebi; Bela Szilagyi; Tony Chu; Nicholas Demos; Daniel A. Hemberger; Lawrence E. Kidder; Harald P. Pfeiffer; Nousha Afshari

    2015-02-27T23:59:59.000Z

    The spin angular momentum $S$ of an isolated Kerr black hole is bounded by the surface area $A$ of its apparent horizon: $8\\pi S \\le A$, with equality for extremal black holes. In this paper, we explore the extremality of individual and common apparent horizons for merging, rapidly spinning binary black holes. We consider simulations of merging black holes with equal masses $M$ and initial spin angular momenta aligned with the orbital angular momentum, including new simulations with spin magnitudes up to $S/M^2 = 0.994$. We measure the area and (using approximate Killing vectors) the spin on the individual and common apparent horizons, finding that the inequality $8\\pi S A$ and for which our lower bound on their Booth-Fairhurst extremality exceeds unity. These superextremal surfaces are always surrounded by marginally outer trapped surfaces (i.e., by apparent horizons) with $8\\pi Shorizon is always less than unity but can exceed the value for an extremal Kerr black hole. (Abstract abbreviated.)

  19. Contact stress sensor

    DOE Patents [OSTI]

    Kotovsky, Jack

    2014-02-11T23:59:59.000Z

    A method for producing a contact stress sensor that includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.

  20. ARM - NSA Contacts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDCnarrowbandheat flux ARMMeasurementsMethaneContacts NSA Related

  1. DOE Radiation Records Contacts List

    Broader source: Energy.gov [DOE]

    DOE radiation records contact list for individuals to obtain records of occupational exposure directly from a DOE site.

  2. Directly observing entropy accumulate on the horizon and holography

    E-Print Network [OSTI]

    Ariel Edery; Hugues Beauchesne

    2012-05-15T23:59:59.000Z

    Recent numerical simulations of gravitational collapse show that there exists a special foliation of the spacetime where matter and entropy accumulate directly on the inside of the horizon surface. In this foliation, the time coincides with the proper time of the asymptotic static observer (ASO) and for spherical symmetry, this corresponds to isotropic coordinates. In this gauge, the three-volume in the interior shrinks to zero and only the horizon area remains at the end of collapse. In a different foliation, matter and entropy accumulate in the volume. The entropy is however independent of the foliation. Black hole holography is therefore a mapping from an arbitrary foliation, where information resides in the volume, to the special ASO frame, where it resides directly on the horizon surface.

  3. Thermodynamics of Black Hole Horizons and Kerr/CFT Correspondence

    E-Print Network [OSTI]

    Bin Chen; Shen-xiu Liu; Jia-ju Zhang

    2012-11-02T23:59:59.000Z

    In this paper we investigate the thermodynamics of the inner horizon and its implication on the holographic description of the black hole. We focus on the black holes with two physical horizons. Under reasonable assumption, we prove that the first law of thermodynamics of the outer horizon always indicates that of the inner horizon. As a result, the fact that the area product being mass-independent is equivalent to the relation $T_+S_+=T_-S_-$, with $T_\\pm$ and $S_\\pm$ being the Hawking temperatures and the entropies of the outer and inner horizon respectively. We find that the mass-independence of area product breaks down in general Myers-Perry black holes with spacetime dimension $d\\geq6$ and Kerr-AdS black holes with $d\\geq4$. Moreover we discuss the implication of the first laws of the outer and inner horizons on the thermodynamics of the right- and left-moving sectors of dual CFT in Kerr/CFT correspondence. We show that once the relation $T_+S_+=T_-S_-$ is satisfied, the central charges of two sectors must be same. Furthermore from the thermodynamics relations, we read the dimensionless temperatures of microscopic CFT, which are in exact agreement with the ones obtained from hidden conformal symmetry in the low frequency scattering off the black holes, and then determine the central charges. This method works well in well-known cases in Kerr/CFT correspondence, and reproduce successfully the holographic pictures for 4D Kerr-Newman and 5D Kerr black holes. We go on to predict the central charges and temperatures of a possible holographic CFT description dual to 5D doubly rotating black ring.

  4. Spectral properties of acoustic black hole radiation: Broadening the horizon

    SciTech Connect (OSTI)

    Finazzi, Stefano; Parentani, Renaud [SISSA, via Bonomea 265, Trieste 34151 (Italy) and INFN sezione di Trieste, Via Valerio 2, Trieste 34127 (Italy); Laboratoire de Physique Theorique, CNRS UMR 8627, Batiment 210, Universite Paris-Sud 11, 91405 Orsay Cedex (France)

    2011-04-15T23:59:59.000Z

    The sensitivity of the black hole spectrum when introducing short distance dispersion is studied in the context of atomic Bose condensates. By considering flows characterized by several length scales, we show that, while the spectrum remains remarkably Planckian, the temperature is no longer fixed by the surface gravity. Rather it is determined by the average of the flow gradient across the horizon over an interval fixed by the healing length and the surface gravity, as if the horizon were broadened. This remains valid as long as the flow does not induce nonadiabatic effects that produce oscillations or some parametric amplification of the flux.

  5. Thermodynamics on the apparent horizon in generalized gravity theories

    E-Print Network [OSTI]

    Shao-Feng Wu; Bin Wang; Guo-Hong Yang

    2008-01-17T23:59:59.000Z

    We present a general procedure to construct the first law of thermodynamics on the apparent horizon and illustrate its validity by examining it in some extended gravity theories. Applying this procedure, we can describe the thermodynamics on the apparent horizon in Randall-Sundrum braneworld imbedded in a nontrivial bulk. We discuss the mass-like function which was used to link Friedmann equation to the first law of thermodynamics and obtain its special case which gives the generalized Misner-Sharp mass in Lovelock gravity.

  6. Horizons and Tunneling in the Euclidean False Vacuum

    E-Print Network [OSTI]

    Kate Marvel; Neil Turok

    2007-12-17T23:59:59.000Z

    In the thin-wall approximation, the decay of a gravitating false vacuum to a lower-energy state is affected by the cosmological horizon structure in both spaces. The nucleation radius of a bubble of true vacuum depends on the surface tension of its boundary and equals the false vacuum cosmological horizon at a critical tension. We argue that there is no tunneling instanton solution beyond the critical tension and argue that there is therefore a bound on allowed membrane tension in theories which rely on semiclassical tunneling to relax the cosmological constant.

  7. Dynamics of the Cosmological Apparent Horizon: Surface Gravity & Temperature

    E-Print Network [OSTI]

    Alexis Helou

    2015-02-14T23:59:59.000Z

    In the context of thermodynamics applied to our cosmological apparent horizon, we explicit in greater details our previous work which established the Friedmann Equations from projection of Hayward's Unified First Law. In particular, we show that the dynamical Hayward-Kodama surface gravity is perfectly well-defined and is suitable for this derivation. We then relate this surface gravity to a physical notion of temperature, and show this has constant, positive sign for any kind of past-inner trapping horizons. Hopefully this will clarify the choice of temperature in a dynamical Friedmann-Lema\\^itre-Roberston-Walker spacetime.

  8. Contact Issue 1

    E-Print Network [OSTI]

    Multiple Contributors

    1976-01-01T23:59:59.000Z

    , '\\ ..... ,. '" ' ; ') I f. I , j ------------------~ The tall lean Earthman stepped up to the8!nterprise trio who had just beamed down onto his porch. "Welcome to the Kes sler Colonr.' gentlemen, " he greeted them. "I'm Leon Kessler at your service l' The man... DEDICATION This zi_e is dedicated to all STAR TREK raas who saw aad uaderstood that special quality ia the "Kirk/Spock Relatioash!p", aad to WILLIAM SHATNER .ad LEONARD NIMOY, who made it happe_. ? Copyright December, 1915, CONTACT. No reprlats...

  9. ARM - Contact Information

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  13. NREL: Technology Transfer - Contacts

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  16. ARM - Ingest Contacts

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  17. ARM - TWP Contacts

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  18. NETL Contact Information

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  19. Sandia Energy - Contact Us

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  20. FOR IMMEDIATE RELEASE CONTACT:

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  1. Transmission - Contact Information

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  2. Transmission Contact Information

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  3. Contact JLab | Jefferson Lab

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  4. Contact Us - SRSCRO

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  5. Contacts / Hours - Hanford Site

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  8. Media Contact: Will Callicott

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  10. For Immediate Release Contacts

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  11. Interlaboratory Analytical Comparison Study to Support Deepwater Horizon

    E-Print Network [OSTI]

    Resource Damage Assessment: Description and Results for Marine Sediment QA10SED01 Michele M. Schantz resource damage assessment (NRDA) in response to the Deepwater Horizon (DWH) oil spill in the Gulf are conducting a natural resource damage assessment (NRDA) to determine what resources have been injured and what

  12. Interlaboratory Analytical Comparison Study to Support Deepwater Horizon

    E-Print Network [OSTI]

    Resource Damage Assessment: Description and Results for Mussel Tissue QA10TIS01 Michele M. Schantz and John resource damage assessment (NRDA) in response to the Deepwater Horizon (DWH) oil spill in the Gulf and state agencies are conducting a natural resource damage assessment (NRDA) to determine what resources

  13. Shear Waves, Sound Waves On A Shimmering Horizon

    E-Print Network [OSTI]

    Omid Saremi

    2007-03-19T23:59:59.000Z

    In the context of the so called ``membrane paradigm'' of black holes/branes, it has been known for sometime that the dynamics of small fluctuations on the stretched horizon can be viewed as corresponding to diffusion of a conserved charge in simple fluids. To study shear waves in this context properly, one must define a conserved stress tensor living on the stretched horizon. Then one is required to show that such a stress tensor satisfies the corresponding constitutive relations. These steps are missing in a previous treatment of the shear perturbations by Kovtun, Starinets and Son. In this note, we fill the gap by prescribing the stress tensor on the stretched horizon to be the Brown and York (or Balasubramanian-Kraus (BK) in the AdS/CFT context) holographic stress tensor. We are then able to show that such a conserved stress tensor satisfies the required constitutive relation on the stretched horizon using Einstein equations. We read off the shear viscosity from the constitutive relations in two different channels, shear and sound. We find an expression for the shear viscosity in both channels which are equal, as expected. Our expression is in agreement with a previous membrane paradigm formula reported by Kovtun, Starinets and Son.

  14. Time Horizons of Environmental vs. Non-Environmental Costs

    E-Print Network [OSTI]

    Tovey, Craig A.

    1 1 #12;Time Horizons of Environmental vs. Non-Environmental Costs: Evidence from U.S. Tort Fellowship #12;Abstract One explanation for a positive correlation between environmental and financial differences between environmental and other investment opportunities. One of these systematic differences

  15. Adaptive Receding Horizon Control of a Distributed Collector Solar Field

    E-Print Network [OSTI]

    Sontag, Eduardo

    for a distributed collector solar field which ex- plicitly explores its distributed parameter character. The plant, distributed collector solar fields are repre- sentative of an important class of distributed parameter plantsAdaptive Receding Horizon Control of a Distributed Collector Solar Field J.M. Igreja, J. M. Lemos

  16. SC-RISE LECTURE SERIES BRIGHT HORIZONS IN SOLAR ENERGY

    E-Print Network [OSTI]

    SC-RISE LECTURE SERIES BRIGHT HORIZONS IN SOLAR ENERGY Sustainable Energy Opportunities, Options are being developed including biomass, geothermal, hydropower, ocean thermal energy conversion, solar electric, solar thermal, and wind. However, such aspects as low energy density, siting, and temporal

  17. Soil Horizons Some Noteworthy Soil Science in Wisconsin

    E-Print Network [OSTI]

    Mladenoff, David

    Soil Horizons Some Noteworthy Soil Science in Wisconsin Alfred E. Hartemink The impact and benefits of soil science have only partly been documented. Here I highlight four noteworthy soil science achievements from the state of Wisconsin that took place between 1870 and the early 1980s: (i) the first soil

  18. Deepwater Horizon Study Group 3 Environmental Report January 2011

    E-Print Network [OSTI]

    Silver, Whendee

    to 53,000 barrels a day as the reservoir gradually depleted itself. 4.9 million barrels (205.8 million The Deepwater Horizon oil rig exploded 5,000 feet below the surface of the Gulf of Mexico on April 20, 2010. The Flow Rate Technical Group estimates the leak initially produced 62,000 barrels of oil a day and eased

  19. Seismic Volume Visualization for Horizon Extraction Daniel Patel

    E-Print Network [OSTI]

    present a novel system for rapidly interpret- ing and visualizing seismic volumetric data. First we to seismic data interpretation. Keywords: Seismic interpretation, Seismic horizons, Volume ren- dering hydrocarbons are trapped. In this paper we present a system for rapid interpretation of seismic reflection

  20. Spherical collapse with heat flow and without horizon

    E-Print Network [OSTI]

    A. Banerjee; S. Chatterjee; N. Dadhich

    2002-09-10T23:59:59.000Z

    We present a class of solutions for a heat conducting fluid sphere, which radiates energy during collapse without the appearance of horizon at the boundary at any stage of the collapse. A simple model shows that there is no accumulation of energy due to collapse since it radiates out at the same rate as it is being generated.

  1. Evolution of the horizons for dark energy universe

    E-Print Network [OSTI]

    Ritabrata Biswas; Nairwita Mazumder; Subenoy Chakraborty

    2011-06-12T23:59:59.000Z

    Recent observational evidences of accelerating phase of the universe strongly demand that the dominating matter in the universe is in the form of dark energy. In this work, we study the evolution of the apparent and event horizons for various dark energy models and examine their behavior across phantom barrier line.

  2. Causal temperature profiles in horizon-free collapse

    E-Print Network [OSTI]

    N F Naidu; M Govender

    2005-10-04T23:59:59.000Z

    We investigate the causal temperature profiles in a recent model of a radiating star undergoing dissipative gravitational collapse without the formation of an horizon. It is shown that this simple exact model provides a physically reasonable behaviour for the temperature profile within the framework of extended irreversible thermodynamics.

  3. Horizon Dynamics of Evaporating Black Holes in a Higher Dimensional Inflationary Universe

    E-Print Network [OSTI]

    Manasse Mbonye

    1999-08-19T23:59:59.000Z

    Spherically symmetric Black Holes of the Vaidya type are examined in an asymptotically de Sitter, higher dimensional spacetime. The various horizons are located. The structure and dynamics of such horizons are studied.

  4. Microbial gene functions enriched in the Deepwater Horizon deep-sea oil plume

    E-Print Network [OSTI]

    Lu, Z.

    2012-01-01T23:59:59.000Z

    Horizon oil spill in the Gulf of Mexico is the deepest andof Gulf of Mexico from other historic offshore oil spillsDeepwater Horizon oil spill in the Gulf of Mexico was one of

  5. CONTACTS FOR INFORMATION MANAGEMENT: Forms, Information Collection...

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

    CONTACTS FOR INFORMATION MANAGEMENT: Forms, Information Collection, Privacy & Records CONTACTS FOR INFORMATION MANAGEMENT: Forms, Information Collection, Privacy & Records Troy...

  6. Is thermodynamics of the universe bounded by the event horizon a Bekenstein system?

    E-Print Network [OSTI]

    Subenoy Chakraborty

    2012-11-12T23:59:59.000Z

    In this brief communication, we have studied the validity of the first law of thermodynamics for the universe bounded by event horizon with two examples. The key point is the appropriate choice of the temperature on the event horizon. Finally, we have concluded that universe bounded by the event horizon may be a Bekenstein system and the Einstein's equations and the first law of thermodynamics on the event horizons are equivalent.

  7. LE BULLETIN DE L'EPI N 43 LOGICIELS DIDACT, HORIZON, ROSEAU PROPOS DES LOGICIELS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    141 LE BULLETIN DE L'EPI N° 43 LOGICIELS DIDACT, HORIZON, ROSEAU � PROPOS DES LOGICIELS DIDACT supprimer sur une disquette en unité FL0 les fichiers utilisateurs créés par Didact, Horizon ou Roseau CP BULLETIN DE L'EPI LOGICIELS DIDACT, HORIZON, ROSEAU d) le travail se fait. Noter que pour une deuxième

  8. Deepwater Horizon Study Finds Crude Oil Harmful to Bluefin, Yellowfin Tuna

    E-Print Network [OSTI]

    Grosell, Martin

    , as a large plume of smoke rises from fires on BP's Deepwater Horizon offshore oil rig. Image: Gerald Herbert Deepwater Horizon oil spill caused malformations in developing hearts of yellowfin and bluefin tuna the Deepwater Horizon spill. An Atlantic bluefin tuna. Image: Wikimedia Commons #12;They found a variety

  9. Atmospheric emissions from the Deepwater Horizon spill constrain airwater partitioning, hydrocarbon fate, and leak rate

    E-Print Network [OSTI]

    Toohey, Darin W.

    Atmospheric emissions from the Deepwater Horizon spill constrain airwater partitioning, hydrocarbon amounts (258,000 kg/day) of hydrocarbons evaporating promptly from the Deepwater Horizon spill; these data. Citation: Ryerson, T. B., et al. (2011), Atmo- spheric emissions from the Deepwater Horizon spill constrain

  10. Method for forming metal contacts

    DOE Patents [OSTI]

    Reddington, Erik; Sutter, Thomas C; Bu, Lujia; Cannon, Alexandra; Habas, Susan E; Curtis, Calvin J; Miedaner, Alexander; Ginley, David S; Van Hest, Marinus Franciscus Antonius Maria

    2013-09-17T23:59:59.000Z

    Methods of forming metal contacts with metal inks in the manufacture of photovoltaic devices are disclosed. The metal inks are selectively deposited on semiconductor coatings by inkjet and aerosol apparatus. The composite is heated to selective temperatures where the metal inks burn through the coating to form an electrical contact with the semiconductor. Metal layers are then deposited on the electrical contacts by light induced or light assisted plating.

  11. Contact Us | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortium SupportContactContactContact

  12. UH Mnoa Contacts: Campus Security

    E-Print Network [OSTI]

    of the Gender Equity Specialist 956-9499 www.manoa.hawaii.edu/mco/Gender_Equity/ Off-campus Contacts: Honolulu

  13. Sandia National Laboratories: SSLS Contacts

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

    Nuclear Energy photovoltaic Photovoltaics PV Renewable Energy solar Solar Energy solar power Solar Research Solid-State Lighting SSLS Connect Contact Us RSS Google+ Twitter...

  14. Contact | Photosynthetic Antenna Research Center

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

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

  15. Outlook export contacts and groups Migrate Outlook Contacts to gmail

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    Outlook export contacts and groups Migrate Outlook Contacts to gmail 1. In Outlook 2007 on the File menu, click Import and Export. 1a. For Outlook 2010 on the File menu, click Open, then Import 2. Click Export to a file, and then click Next. #12;3. Click Comma Separated Values (Windows), and then click Next

  16. Connecting horizon pixels and interior voxels of a black hole

    E-Print Network [OSTI]

    Piero Nicolini; Douglas Singleton

    2014-10-03T23:59:59.000Z

    In this paper we discuss to what extent one can infer details of the interior structure of a black hole based on its horizon. Recalling that black hole thermal properties are connected to the non-classical nature of gravity, we circumvent the restrictions of the no hair theorem by postulating that the black hole interior is singularity free due to violations of the usual energy conditions. Further these conditions allow one to establish a one-to-one, holographic projection between Planckian areal "bits" on the horizon and "voxels", representing the gravitational degrees of freedom in the black hole interior. We illustrate the repercussions of this idea by discussing an example of the black hole interior consisting of a de Sitter core postulated to arise from the local graviton quantum vacuum energy. It is shown that the black hole entropy can emerge as the statistical entropy of a gas of voxels.

  17. Horizon effects with surface waves on moving water

    E-Print Network [OSTI]

    Germain Rousseaux; Philippe Maissa; Christian Mathis; Pierre Coullet; Thomas G. Philbin; Ulf Leonhardt

    2010-10-01T23:59:59.000Z

    Surface waves on a stationary flow of water are considered, in a linear model that includes the surface tension of the fluid. The resulting gravity-capillary waves experience a rich array of horizon effects when propagating against the flow. In some cases three horizons (points where the group velocity of the wave reverses) exist for waves with a single laboratory frequency. Some of these effects are familiar in fluid mechanics under the name of wave blocking, but other aspects, in particular waves with negative co-moving frequency and the Hawking effect, were overlooked until surface waves were investigated as examples of analogue gravity [Sch\\"utzhold R and Unruh W G 2002 Phys. Rev. D 66 044019]. A comprehensive presentation of the various horizon effects for gravity-capillary waves is given, with emphasis on the deep water/short wavelength case kh>>1 where many analytical results can be derived. A similarity of the state space of the waves to that of a thermodynamic system is pointed out.

  18. Solar cell with back side contacts

    DOE Patents [OSTI]

    Nielson, Gregory N; Okandan, Murat; Cruz-Campa, Jose Luis; Resnick, Paul J; Wanlass, Mark Woodbury; Clews, Peggy J

    2013-12-24T23:59:59.000Z

    A III-V solar cell is described herein that includes all back side contacts. Additionally, the positive and negative electrical contacts contact compoud semiconductor layers of the solar cell other than the absorbing layer of the solar cell. That is, the positive and negative electrical contacts contact passivating layers of the solar cell.

  19. Contact Information | The Ames Laboratory

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

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

  20. Contact Us | The Ames Laboratory

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

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

  1. Contact Us | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContactAboutContactSandiaContact

  2. Protein folding using contact maps

    E-Print Network [OSTI]

    Michele Vendruscolo; Eytan Domany

    1999-01-21T23:59:59.000Z

    We present the development of the idea to use dynamics in the space of contact maps as a computational approach to the protein folding problem. We first introduce two important technical ingredients, the reconstruction of a three dimensional conformation from a contact map and the Monte Carlo dynamics in contact map space. We then discuss two approximations to the free energy of the contact maps and a method to derive energy parameters based on perceptron learning. Finally we present results, first for predictions based on threading and then for energy minimization of crambin and of a set of 6 immunoglobulins. The main result is that we proved that the two simple approximations we studied for the free energy are not suitable for protein folding. Perspectives are discussed in the last section.

  3. Contact Us | Argonne National Laboratory

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

    Contact Us Address and phone Argonne National Laboratory 9700 S. Cass Avenue Lemont, IL 60439. Phone: 630252-2000 For members of the news media News releases online Argonne media...

  4. CONTACT INFORMATION Roxana Jo Hickey

    E-Print Network [OSTI]

    Forney, Larry J.

    CONTACT INFORMATION Roxana Jo Hickey Ph.D. Student, Bioinformatics & Computational Biology.D. Student, Bioinformatics & Computational Biology present University of Idaho, Moscow, ID Major Professor. Zaid Abdo University of Idaho (MATH 451) Spring 2011 Computational Biology: Sequence Analysis, Dr

  5. Method for lubricating contacting surfaces

    DOE Patents [OSTI]

    Dugger, Michael T. (Tijeras, NM); Ohlhausen, James A. (Albuquerque, NM); Asay, David B. (Boalsburg, PA); Kim, Seong H. (State College, PA)

    2011-12-06T23:59:59.000Z

    A method is provided for tribological lubrication of sliding contact surfaces, where two surfaces are in contact and in motion relative to each other, operating in a vapor-phase environment containing at least one alcohol compound at a concentration sufficiently high to provide one monolayer of coverage on at least one of the surfaces, where the alcohol compound continuously reacts at the surface to provide lubrication.

  6. Contact Information | The Ames Laboratory

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

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

  7. Contact Us | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortium SupportContactContact Us

  8. Contact Us | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortium SupportContactContact

  9. A quantum peek inside the black hole event horizon

    E-Print Network [OSTI]

    Sumanta Chakraborty; Suprit Singh; T. Padmanabhan

    2015-03-14T23:59:59.000Z

    We solve the Klein-Gordon equation for a scalar field, in the background geometry of a dust cloud collapsing to form a black hole, everywhere in the (1+1) spacetime: that is, both inside and outside the event horizon and arbitrarily close to the curvature singularity. This allows us to determine the regularized stress tensor expectation value, everywhere in the appropriate quantum state (viz., the Unruh vacuum) of the field. We use this to study the behaviour of energy density and the flux measured in local inertial frames for the radially freely falling observer at any given event. Outside the black hole, energy density and flux lead to the standard results expected from the Hawking radiation emanating from the black hole, as the collapse proceeds. Inside the collapsing dust ball, the energy densities of both matter and scalar field diverge near the singularity in both (1+1) and (1+3) spacetime dimensions; but the energy density of the field dominates over that of classical matter. In the (1+3) dimensions, the total energy (of both scalar field and classical matter) inside a small spatial volume around the singularity is finite (and goes to zero as the size of the region goes to zero) but the total energy of the quantum field still dominates over that of the classical matter. Inside the event horizon, but \\textit{outside} the collapsing matter, freely falling observers find that the energy density and the flux diverge close to the singularity. In this region, even the integrated energy inside a small spatial volume enclosing the singularity diverges. This result holds in both (1+1) and (1+3) spacetime dimensions with a \\emph{milder} divergence for the total energy inside a small region in (1+3) dimensions. These results suggest that the back-reaction effects are significant even in the region \\emph{outside the matter but inside the event horizon}, close to the singularity.

  10. Complete single-horizon quantum corrected black hole spacetime

    SciTech Connect (OSTI)

    Peltola, Ari; Kunstatter, Gabor [Department of Physics and Winnipeg Institute for Theoretical Physics, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba, R3B 2E9 (Canada)

    2009-03-15T23:59:59.000Z

    We show that a semiclassical polymerization of the interior of Schwarzschild black holes gives rise to a tantalizing candidate for a nonsingular, single-horizon black hole spacetime. The exterior has nonzero quantum stress energy but closely approximates the classical spacetime for macroscopic black holes. The interior exhibits a bounce at a microscopic scale and then expands indefinitely to a Kantowski-Sachs spacetime. Polymerization therefore removes the singularity and produces a scenario reminiscent of past proposals for universe creation via quantum effects inside a black hole.

  11. DOE's Portal to Deepwater Horizon Oil Spill Data

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

    On April 20, 2010, the Deepwater Horizon platform in the Gulf of Mexico exploded. The explosion and fire killed and injured workers on the oil rig, and caused major releases of oil and gas into the Gulf for several months. The Department of Energy, in keeping with the Obama Administrations ongoing commitment to transparency, provided online access to data and information related to the response to the BP oil spill. Included are schematics, pressure tests, diagnostic results, video clips, and other data. There are also links to the Restore the Gulf website, to the trajectory forecasts from NOAA, and oil spill information from the Environmental Protection Agency.

  12. Horizon City, 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtel Jump to:Pennsylvania: EnergyHopkinsville, Kentucky:Horizon City,

  13. Horizon Wind Energy formerly Zilkha Renewable Energy | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtel Jump to:Pennsylvania: EnergyHopkinsville, Kentucky:Horizon

  14. Horizon Fuel Cell Technologies Pte 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | Open EnergyInformationHorizon Fuel Cell Technologies Pte Ltd Jump

  15. Black hole initial data with a horizon of prescribed intrinsic and extrinsic geometry

    E-Print Network [OSTI]

    Brian Smith

    2010-06-14T23:59:59.000Z

    The purpose of this work is to construct asymptotically flat, time symmetric initial data with an apparent horizon of prescribed intrinsic and extrinsic geometry. To do this, we use the parabolic partial differential equation for prescribing scalar curvature. In this equation the horizon geometry is contained within the freely specifiable part of the metric. This contrasts with the conformal method in which the geometry of the horizon can only be specified up to a conformal factor.

  16. Implementing an apparent-horizon finder in three dimensions

    E-Print Network [OSTI]

    Thomas W. Baumgarte; Gregory B. Cook; Mark A. Scheel; Stuart L. Shapiro; Saul A. Teukolsky

    1996-06-06T23:59:59.000Z

    Locating apparent horizons is not only important for a complete understanding of numerically generated spacetimes, but it may also be a crucial component of the technique for evolving black-hole spacetimes accurately. A scheme proposed by Libson et al., based on expanding the location of the apparent horizon in terms of symmetric trace-free tensors, seems very promising for use with three-dimensional numerical data sets. In this paper, we generalize this scheme and perform a number of code tests to fully calibrate its behavior in black-hole spacetimes similar to those we expect to encounter in solving the binary black-hole coalescence problem. An important aspect of the generalization is that we can compute the symmetric trace-free tensor expansion to any order. This enables us to determine how far we must carry the expansion to achieve results of a desired accuracy. To accomplish this generalization, we describe a new and very convenient set of recurrence relations which apply to symmetric trace-free tensors.

  17. Mining Protein Contact Maps Jingjing Hu

    E-Print Network [OSTI]

    Bystroff, Chris

    Mining Protein Contact Maps Jingjing Hu , Xiaolan Shen , Yu Shao ¡ , Chris Bystroff matrix of pairwise, inter-residue contacts, or "contact map". The contact map provides a host of use- ful information about the protein's structure. In this paper we de- scribe how data mining can be used to extract

  18. Improved Electrical Contact For Dowhhole Drilling Networks

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT); Sneddon, Cameron (Provo, UT)

    2005-08-16T23:59:59.000Z

    An electrical contact system for transmitting information across tool joints while minimizing signal reflections that occur at the tool joints includes a first electrical contact comprising an annular resilient material. An annular conductor is embedded within the annular resilient material and has a surface exposed from the annular resilient material. A second electrical contact is provided that is substantially equal to the first electrical contact. Likewise, the second electrical contact has an annular resilient material and an annular conductor. The two electrical contacts configured to contact one another such that the annular conductors of each come into physical contact. The annular resilient materials of each electrical contact each have dielectric characteristics and dimensions that are adjusted to provide desired impedance to the electrical contacts.

  19. Non- contacting capacitive diagnostic device

    DOE Patents [OSTI]

    Ellison, Timothy

    2005-07-12T23:59:59.000Z

    A non-contacting capacitive diagnostic device includes a pulsed light source for producing an electric field in a semiconductor or photovoltaic device or material to be evaluated and a circuit responsive to the electric field. The circuit is not in physical contact with the device or material being evaluated and produces an electrical signal characteristic of the electric field produced in the device or material. The diagnostic device permits quality control and evaluation of semiconductor or photovoltaic device properties in continuous manufacturing processes.

  20. Contacts of space--times

    SciTech Connect (OSTI)

    Maia, M.D.

    1981-03-01T23:59:59.000Z

    The concept of contact between manifolds is applied to space--times of general relativity. For a given background space--time a contact approximation of second order is defined and interpreted both from the point of view of a metric pertubation and of a higher order tangent manifold. In the first case, an application to the high frequency gravitational wave hypothesis is suggested. In the second case, a constant curvature tangent bundle is constructed and suggested as a means to define a ten parameter local space--time symmetry.

  1. Contact Information | The Ames Laboratory

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

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

  2. Contact Us | The Ames Laboratory

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

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

  3. Contact Us | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613PortsmouthBartlesvilleAbout » Contact Us Contact Us U.S. Department of Energy SunShot

  4. Contact Us | Department of Energy

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

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  5. Contact Us | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortium SupportContact UsContact Us

  6. Contact Us | Department of Energy

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

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  7. Contact Us | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortium SupportContact UsContactUs

  8. Contact Us | Department of Energy

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

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  9. Contact Us | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010Conferencing and SpecialUs Contact UsContact

  10. Contact Us | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010Conferencing and SpecialUs ContactUs Contact

  11. Contact Us | ScienceCinema

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronic Input Options Garyand TechnicalAboutContact Us Contact Us If you

  12. Contact Information | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContact Information Contact

  13. Contact Information | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContact Information Contact

  14. Contact Resistance of Tri-layer Graphene Side Contacted with Nickel Jason Giuliani,1-3

    E-Print Network [OSTI]

    UG-34 Contact Resistance of Tri-layer Graphene Side Contacted with Nickel Electrodes.S.A. High contact resistance is a key problem in graphene-type device performance. In order to create, the contact properties of graphene devices requires further research. Nickel's high work-function and contact

  15. Offset-free Receding Horizon Control of Constrained Linear Systems subject to

    E-Print Network [OSTI]

    Cambridge, University of

    Offset-free Receding Horizon Control of Constrained Linear Systems subject to Time/F-INFENG/TR.468 November 4, 2003 #12;Offset-free Receding Horizon Control of Constrained Linear Systems subject and offset-free control of con- strained, linear time-invariant systems in the presence of time

  16. Did the northeastern Gulf of Mexico become greener after the Deepwater Horizon oil spill?

    E-Print Network [OSTI]

    Meyers, Steven D.

    #12;Did the northeastern Gulf of Mexico become greener after the Deepwater Horizon oil spill; published 3 May 2011. [1] Assessment of direct and indirect impacts of oil and dispersants on the marine ecosystem in the northeastern Gulf of Mexico (NEGOM) from the Deepwater Horizon oil spill (April ­ July 2010

  17. Managerial Incentive Horizons and the Quality of Firms' Information Environments Jianxin (Daniel) Chi

    E-Print Network [OSTI]

    in the short-term speculative component of the stock price. Current shareholders benefit from the option` information environments. When a firm`s managerial incentive horizon is short, it is more likely to report are consistent with the hypothesis that short incentive horizons induce managers to adopt strategies that reduce

  18. Genomic and physiological footprint of the Deepwater Horizon oil spill on resident marsh fishes

    E-Print Network [OSTI]

    Whitehead, Andrew

    ­9, 2010), during the peak of oil landfall (June 28­30, 2010), and after much of the surface oilGenomic and physiological footprint of the Deepwater Horizon oil spill on resident marsh fishes June 13, 2011) The biological consequences of the Deepwater Horizon oil spill are unknown, especially

  19. Deepwater Horizon oil left tuna, other species with heart defects likely to prove fatal

    E-Print Network [OSTI]

    Grosell, Martin

    shows that the 2010 BP oil spill spawned deformities in bluefin tuna thereby impeding their ability Horizon oil spill struck at the very heart of fish, a new study says. Exposed to millions of gallons anniversary of the Exxon Valdez oil spill in Alaska's Prince William Sound. Oil from Deepwater Horizon spill

  20. Office of Response and Restoration Emergency Response Division Deepwater Horizon BP Oil Spill

    E-Print Network [OSTI]

    Office of Response and Restoration · Emergency Response Division Deepwater Horizon BP Oil Spill result if oil spilling from the Deepwater Horizon site continues until a relief well successfully stops based on a scenario that assumes a significant continuing spill. Some of these impacts may be weeks

  1. Chemical fingerprinting of petroleum biomarkers in Deepwater Horizon oil spill samples collected from Alabama shoreline

    E-Print Network [OSTI]

    Clement, Prabhakar

    Chemical fingerprinting of petroleum biomarkers in Deepwater Horizon oil spill samples collected of Civil Engineering, Auburn University, Auburn, AL 36849, USA a r t i c l e i n f o Keywords: BP oil spill Deepwater Horizon oil spill Hopane analysis Fingerprinting Tar balls a b s t r a c t We compare

  2. University Assessment Contacts Academic Units

    E-Print Network [OSTI]

    Escher, Christine

    .j.arp@oregonstate.edu 541-737-2331 Notes: Agricultural and Resource Economics Assessment Rep: Email: Phone: Penelope DiebelUniversity Assessment Contacts Academic Units COLLEGE OF AGRICULTURAL SCIENCES Assessment Rep.Capalbo@oregonstate.edu 541-737-5639 Notes: Agricultural Education and Agricultural Sciences Assessment Rep: Email: Phone

  3. Contact Symmetries and Hamiltonian Thermodynamics

    E-Print Network [OSTI]

    A. Bravetti; C. S. Lopez-Monsalvo; F. Nettel

    2015-02-22T23:59:59.000Z

    It has been shown that contact geometry is the proper framework underlying classical thermodynamics and that thermodynamic fluctuations are captured by an additional metric structure related to Fisher's Information Matrix. In this work we analyze several unaddressed aspects about the application of contact and metric geometry to thermodynamics. We consider here the Thermodynamic Phase Space and start by investigating the role of gauge transformations and Legendre symmetries for metric contact manifolds and their significance in thermodynamics. Then we present a novel mathematical characterization of first order phase transitions as equilibrium processes on the Thermodynamic Phase Space for which the Legendre symmetry is broken. Moreover, we use contact Hamiltonian dynamics to represent thermodynamic processes in a way that resembles the classical Hamiltonian formulation of conservative mechanics and we show that the relevant Hamiltonian coincides with the irreversible entropy production along thermodynamic processes. Therefore, we use such property to give a geometric definition of thermodynamically admissible fluctuations according to the Second Law of thermodynamics. Finally, we show that the length of a curve describing a thermodynamic process measures its entropy production.

  4. Electrical contact tool set station

    DOE Patents [OSTI]

    Byers, M.E.

    1988-02-22T23:59:59.000Z

    An apparatus is provided for the precise setting to zero of electrically conductive cutting tools used in the machining of work pieces. An electrically conductive cylindrical pin, tapered at one end to a small flat, rests in a vee-shaped channel in a base so that its longitudinal axis is parallel to the longitudinal axis of the machine's spindle. Electronic apparatus is connected between the cylindrical pin and the electrically conductive cutting tool to produce a detectable signal when contact between tool and pin is made. The axes of the machine are set to zero by contact between the cutting tool and the sides, end or top of the cylindrical pin. Upon contact, an electrical circuit is completed, and the detectable signal is produced. The tool can then be set to zero for that axis. Should the tool contact the cylindrical pin with too much force, the cylindrical pin would be harmlessly dislodged from the vee-shaped channel, preventing damage either to the cutting tool or the cylindrical pin. 5 figs.

  5. Statistics of black hole radiance and the horizon area spectrum

    E-Print Network [OSTI]

    Bekenstein, Jacob D

    2015-01-01T23:59:59.000Z

    The statistical response of a Kerr black hole to incoming quantum radiation has heretofore been studied by the methods of maximum entropy or quantum field theory in curved spacetime. Neither approach pretends to take into account the quantum structure of the black hole itself. To address this last issue we calculate here the conditional probability distribution associated with the hole's response by assuming that the horizon area has a discrete quantum spectrum, and that its quantum evolution corresponds to jumps between adjacent area eigenvalues, possibly occurring in series, with consequent emission or absorption of quanta, possibly in the same mode. This "atomic" model of the black hole is implemented in two different ways and recovers the previously calculated radiation statistics in both cases. The corresponding conditional probably distribution is here expressed in closed form in terms of an hypergeometric function.

  6. Lithophysal Rock Mass Mechanical Properties of the Repository Host Horizon

    SciTech Connect (OSTI)

    D. Rigby

    2004-11-10T23:59:59.000Z

    The purpose of this calculation is to develop estimates of key mechanical properties for the lithophysal rock masses of the Topopah Spring Tuff (Tpt) within the repository host horizon, including their uncertainties and spatial variability. The mechanical properties to be characterized include an elastic parameter, Young's modulus, and a strength parameter, uniaxial compressive strength. Since lithophysal porosity is used as a surrogate property to develop the distributions of the mechanical properties, an estimate of the distribution of lithophysal porosity is also developed. The resulting characterizations of rock parameters are important for supporting the subsurface design, developing the preclosure safety analysis, and assessing the postclosure performance of the repository (e.g., drift degradation and modeling of rockfall impacts on engineered barrier system components).

  7. Thermodynamics of Evolving Lorentzian Wormhole at Apparent and Event Horizons

    E-Print Network [OSTI]

    Ujjal Debnath; Mubasher Jamil; R. Myrzakulov; M. Akbar

    2012-04-06T23:59:59.000Z

    We have investigated the non-static Lorentzian Wormhole model in presence of anisotropic pressure. We have presented some exact solutions of Einstein equations for anisotropic pressure case. Introducing two EoS parameters we have shown that these solutions give very rich dynamics of the universe yielding to the different expansion history of it in the $r$ - direction and in the $T$ - direction. The corresponding explicit forms of the shape function $b(r)$ is presented.We have shown that the Einstein's field equations and unified first law are equivalent for the dynamical wormhole model. The first law of thermodynamics has been derived by using the Unified first law. The physical quantities including surface gravity and the temperature are derived for the wormhole. Here we have obtained all the results without any choice of the shape function. The validity of generalized second law (GSL) of thermodynamics has been examined at apparent and event horizons for the evolving Lorentzian wormhole.

  8. Submesoscale dispersion in the vicinity of the Deepwater Horizon spill

    E-Print Network [OSTI]

    Poje, Andrew C; Lipphardt,, Bruce; Haus, Brian K; Ryan, Edward H; Haza, Angelique C; Reniers, A J H M; Olascoaga, Josefina; Novelli, Guillaume; Beron-Vera, Francisco J; Chen, Shuyi; Mariano, Arthur J; Jacobs, Gregg; Hogan, Pat; Coelho, Emanuel; Kirwan,, A D; Huntley, Helga; Griffa, Annalisa

    2014-01-01T23:59:59.000Z

    Reliable forecasts for the dispersion of oceanic contamination are important for coastal ecosystems, society and the economy as evidenced by the Deepwater Horizon oil spill in the Gulf of Mexico in 2010 and the Fukushima nuclear plant incident in the Pacific Ocean in 2011. Accurate prediction of pollutant pathways and concentrations at the ocean surface requires understanding ocean dynamics over a broad range of spatial scales. Fundamental questions concerning the structure of the velocity field at the submesoscales (100 meters to tens of kilometers, hours to days) remain unresolved due to a lack of synoptic measurements at these scales. \\textcolor{black} {Using high-frequency position data provided by the near-simultaneous release of hundreds of accurately tracked surface drifters, we study the structure of submesoscale surface velocity fluctuations in the Northern Gulf Mexico. Observed two-point statistics confirm the validity of classic turbulence scaling laws at 200m$-$50km scales and clearly indicate tha...

  9. Review of “Deepwater Horizon Release Estimate of Rate by PIV”

    SciTech Connect (OSTI)

    Onishi, Yasuo

    2010-06-01T23:59:59.000Z

    The Plume Calculation Team (PCT) conducted high quality work within a very short period of time, in spite of needing to use less than ideal quality videos provided by British Petroleum (BP), especially those made before the cutoff of the riser above the Blow Out Preventer (BOP) on June 3, 2010. There are at least two valid approaches for estimating the oil discharge coming out from the Deepwater Horizon broken pipeline and its riser, using BP videotapes. One method is to estimate the exit velocity directly with the use of the Particle Image Velocimetry (PIV). The second method is to use a buoyant plume analysis to determine the exit velocity. The PCT used both of these methods.

  10. The Deepwater Horizon Disaster: What Happened and Why

    SciTech Connect (OSTI)

    Horne, Roland N. (Stanford University) [Stanford University

    2011-01-05T23:59:59.000Z

    The Deepwater Horizon disaster was the largest oil spill in US history, and the second largest spill in the world. 11 men lost their lives in the explosion and fire. Although the impacts of the spill were evident to large numbers of people, its causes were harder to see. This lecture will focus on the technical aspects of the events that led to the spill itself: what happened on the rig before, during and after the event, up to the time the rig sank. As with many engineering disasters, the accident was due to a sequence of failures, including both technical systems and procedural issues. Although the causes were complex and interacting, the lecture will focus on four main problems: (1) the failure of the cement and casing seal, (2) the failure to recognize and respond to hydrocarbon flow into the riser, (3) the ignition of hydrocarbons on the rig, and (4) the failure of the blow-out preventer (BOP) to seal the well. The lecture will conclude with some suggestions as to how events such as the Deepwater Horizon disaster can be avoided in the future. (Roland N. Horne is the Thomas Davies Barrow Professor of Earth Sciences at Stanford University, and was the Chairman of Petroleum Engineering from 1995 to 2006. He holds BE, PhD and DSc degrees from the University of Auckland, New Zealand, all in Engineering Science. Horne is a member of the U.S. National Academy of Engineering and is also an Honorary Member of the Society of Petroleum Engineers.)

  11. Solar cell contact formation using laser ablation

    DOE Patents [OSTI]

    Harley, Gabriel; Smith, David D.; Cousins, Peter John

    2014-07-22T23:59:59.000Z

    The formation of solar cell contacts using a laser is described. A method of fabricating a back-contact solar cell includes forming a poly-crystalline material layer above a single-crystalline substrate. The method also includes forming a dielectric material stack above the poly-crystalline material layer. The method also includes forming, by laser ablation, a plurality of contacts holes in the dielectric material stack, each of the contact holes exposing a portion of the poly-crystalline materiat layer; and forming conductive contacts in the plurality of contact holes.

  12. Solar cell contact formation using laser ablation

    DOE Patents [OSTI]

    Harley, Gabriel; Smith, David; Cousins, Peter

    2012-12-04T23:59:59.000Z

    The formation of solar cell contacts using a laser is described. A method of fabricating a back-contact solar cell includes forming a poly-crystalline material layer above a single-crystalline substrate. The method also includes forming a dielectric material stack above the poly-crystalline material layer. The method also includes forming, by laser ablation, a plurality of contacts holes in the dielectric material stack, each of the contact holes exposing a portion of the poly-crystalline material layer; and forming conductive contacts in the plurality of contact holes.

  13. CONTACT

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

    by high-energy neutrons produced by naturally occurring cosmic radiation. To test the reliability and vulnerability of electronics, the semiconductor industry and other com-...

  14. Contact

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

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

  15. Dual-Sampling-Rate Moving Horizon Control of a Class of Linear Systems with Input Saturation and

    E-Print Network [OSTI]

    Dual-Sampling-Rate Moving Horizon Control of a Class of Linear Systems with Input Saturation horizon control scheme for a class of linear, continuous-time plants with strict input saturation horizon control, robust, fast sampling, stability, linear sys- tems, input constraints 1 Introduction

  16. hal-00144535,version1-3May2007 Cosmological energy in a thermo-horizon and the

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the first law and the definition of the total energy contained inside the horizon. This contradiction, 8] and the definition of the energy contained inside the horizon, independently of the choice from the first law and the definition of the energy inside the horizon. We then show

  17. Remedial Action Contacts Directory - 1997

    SciTech Connect (OSTI)

    NONE

    1997-05-01T23:59:59.000Z

    This document, which was prepared for the US Department of Energy (DOE) Office of Environmental Restoration (ER), is a directory of 2628 individuals interested or involved in environmental restoration and/or remedial actions at radioactively contaminated sites. This directory contains a list of mailing addresses and phone numbers of DOE operations, area, site, project, and contractor offices; an index of DOE operations, area, site, project, and contractor office sorted by state; a list of individuals, presented by last name, facsimile number, and e-mail address; an index of affiliations presented alphabetically, with individual contacts appearing below each affiliation name; and an index of foreign contacta sorted by country and affiliation. This document was generated from the Remedial Action Contacts Database, which is maintained by the Remedial Action Program Information Center (RAPIC).

  18. Contact Us | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortium SupportContact

  19. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01T23:59:59.000Z

    This fact sheet provides contact information for program staff of the U.S. Department of Energy's Clean Cities program, as well as contact information for the nearly 100 local Clean Cities coalitions across the country.

  20. University of Michigan -Traveler Contact Information Name __________________________________

    E-Print Network [OSTI]

    Eustice, Ryan

    University of Michigan - Traveler Contact Information Name __________________________________ Phone __________________________________ Email __________________________________ University of Michigan/Clinic __________________________________ Address __________________________________ Phone __________________________________ University of Michigan

  1. New Horizons for Hydrogen: Producing Hydrogen from Renewable Resources

    SciTech Connect (OSTI)

    Not Available

    2011-02-01T23:59:59.000Z

    Recent events have reminded us of the critical need to transition from crude oil, coal, and natural gas toward sustainable and domestic sources of energy. One reason is we need to strengthen our economy. In 2008 we saw the price of oil reach a record $93 per barrel. With higher oil prices, growing demand for gasoline, and increasing oil imports, an average of $235 billion per year, has left the United States economy to pay for foreign oil since 2005, or $1.2 trillion between 2005 and 2009. From a consumer perspective, this trend is seen with an average gasoline price of $2.50 per gallon since 2005, compared to an average of $1.60 between 1990 and 2004 (after adjusting for inflation). In addition to economic impacts, continued reliance on fossil fuels increases greenhouse gas emissions that may cause climate change, health impacts from air pollution, and the risk of disasters such as the Deepwater Horizon oil spill. Energy efficiency in the form of more efficient vehicles and buildings can help to reduce some of these impacts. However, over the long term we must shift from fossil resources to sustainable and renewable energy sources.

  2. Contact Us | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'sEnergyTexas1.SpaceFluor Federal ServicesDepartment ofDepartmentContact

  3. Contact EPSCI | The Ames Laboratory

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

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

  4. Contacts | National Nuclear Security Administration

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

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

  5. Contact Us | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010Conferencing and SpecialUs Contact Us For

  6. Contact Us | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010Conferencing and SpecialUs Contact Us

  7. Contact Us | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010Conferencing and SpecialUs Contact

  8. Veteran's Contacts | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you wantJoin us for|Idahothe NewUtility-Scale SolarVeteran's Contacts

  9. Contact Information | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContact Information

  10. Contact Information | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContact Information

  11. contact | netl.doe.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires mayYuan T. Lee's www.rsc.org/locContact NETL Technology

  12. contact | netl.doe.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires mayYuan T. Lee's www.rsc.org/locContact NETL

  13. contacts | netl.doe.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires mayYuan T. Lee's www.rsc.org/locContact NETLcontacts

  14. contacts | netl.doe.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires mayYuan T. Lee's www.rsc.org/locContact

  15. TPA Agency Contacts - Hanford Site

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

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

  16. Contact OAK RIDGE NATIONAL LABORATORY

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite Map Homehome /Contact

  17. contacts | netl.doe.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , ., ..., ,+ . :,2013constant Ames LaboratoryContacts

  18. Dynamic Vehicle Routing for Translating Demands: Stability Analysis and Receding-Horizon Policies

    E-Print Network [OSTI]

    Bopardikar, Shaunak D.

    We introduce a problem in which demands arrive stochastically on a line segment, and upon arrival, move with a fixed velocity perpendicular to the segment. We design a receding horizon service policy for a vehicle with ...

  19. Vacuum non-expanding horizons and shear-free null geodesic congruences

    E-Print Network [OSTI]

    T. M. Adamo; E. T. Newman

    2009-08-05T23:59:59.000Z

    We investigate the geometry of a particular class of null surfaces in space-time called vacuum Non-Expanding Horizons (NEHs). Using the spin-coefficient equation, we provide a complete description of the horizon geometry, as well as fixing a canonical choice of null tetrad and coordinates on a NEH. By looking for particular classes of null geodesic congruences which live exterior to NEHs but have the special property that their shear vanishes at the intersection with the horizon, a good cut formalism for NEHs is developed which closely mirrors asymptotic theory. In particular, we show that such null geodesic congruences are generated by arbitrary choice of a complex world-line in a complex four dimensional space, each such choice induces a CR structure on the horizon, and a particular world-line (and hence CR structure) may be chosen by transforming to a privileged tetrad frame.

  20. Expanding Research Horizons: USDA Forest Service Initiative for Developing Recycled Paper Technology

    E-Print Network [OSTI]

    Abubakr, Said

    Forest Service research on recycling is being led by scientists at the Forest Products Laboratory (FPLExpanding Research Horizons: USDA Forest Service Initiative for Developing Recycled Paper Technology Theodore L. Laufenberg, Program Manager Forest Products Conservation and Recycling Said Abubakr

  1. Horizon Mechanics and Asymptotic Symmetries with a Immirzi-like Parameter in 2+1 Dimensions

    E-Print Network [OSTI]

    Rudranil Basu; Ayan Chatterjee

    2011-04-06T23:59:59.000Z

    Starting with a generalized theory of 2+1 gravity containing an Immirzi like parameter, we derive the modified laws of black hole mechanics using the formalism of weak isolated horizons. Definitions of horizon mass and angular momentum emerge naturally in this framework. We further go on to analyze the asymptotic symmetries, as first discussed by Brown and Henneaux, and analyze their implications in a completely covariant phase space framework.

  2. Rolling Contact Fatigue of Ceramics

    SciTech Connect (OSTI)

    Wereszczak, Andrew A [ORNL; Wang, W. [Bournemouth University, Bournemouth, United Kingdom; Wang, Y. [Bournemouth University, Bournemouth, United Kingdom; Hadfield, M. [Bournemouth University, Bournemouth, United Kingdom; Kanematsu, W. [National Institute of Advanced Industrial Science and Technology, Japan; Kirkland, Timothy Philip [ORNL; Jadaan, Osama M. [University of Wisconsin, Platteville

    2006-09-01T23:59:59.000Z

    High hardness, low coefficient of thermal expansion and high temperature capability are properties also suited to rolling element materials. Silicon nitride (Si{sub 3}N{sub 4}) has been found to have a good combination of properties suitable for these applications. However, much is still not known about rolling contact fatigue (RCF) behavior, which is fundamental information to assess the lifetime of the material. Additionally, there are several test techniques that are employed internationally whose measured RCF performances are often irreconcilable. Due to the lack of such information, some concern for the reliability of ceramic bearings still remains. This report surveys a variety of topics pertaining to RCF. Surface defects (cracks) in Si{sub 3}N{sub 4} and their propagation during RCF are discussed. Five methods to measure RCF are then briefly overviewed. Spalling, delamination, and rolling contact wear are discussed. Lastly, methods to destructively (e.g., C-sphere flexure strength testing) and non-destructively identify potential RCF-limiting flaws in Si{sub 3}N{sub 4} balls are described.

  3. Tunneling into black hole, escape from black hole, reflection from horizon and pair creation

    E-Print Network [OSTI]

    V. V. Flambaum

    2004-08-05T23:59:59.000Z

    Within classical general relativity, a particle cannot reach the horizon of a black hole during a finite time, in the reference frame of an external observer; a particle inside cannot escape from a black hole; and the horizon does not produce any reflection. We argue that these processes may possibly be allowed in the quantum world. It is known that quantum mechanics allows pair creation at the horizon (one particle inside, another particle outside) and Hawking radiation. One can extend this idea to propose other processes. Tunneling of an external particle inside black hole may be produced by the creation of a pair at the horizon, followed by the annihilation of one created particle with the initial particle outside, with the other created particle appearing inside. Escape of a particle from a black hole may result from the creation of a pair, followed by the annihilation of one created particle with the particle inside, with the other created particle appearing outside. The escape may allow the transfer of information to the outside.Finally, the reflection of an external particle from the horizon may be modelled by a combination of the two processes presented above. The relationship between these "pair creation-annihilation'' mechanisms and the "horizon tunneling" calculations [1-5] is discussed.

  4. Thermal Conductivity of the Potential Repository Horizon Model Report

    SciTech Connect (OSTI)

    J. Ramsey

    2002-08-29T23:59:59.000Z

    The purpose of this report is to assess the spatial variability and uncertainty of thermal conductivity in the host horizon for the proposed repository at Yucca Mountain. More specifically, the lithostratigraphic units studied are located within the Topopah Spring Tuff (Tpt) and consist of the upper lithophysal zone (Tptpul), the middle nonlithophysal zone (Tptpmn), the lower lithophysal zone (Tptpll), and the lower nonlithophysal zone (Tptpln). The Tptpul is the layer directly above the repository host layers, which consist of the Tptpmn, Tptpll, and the Tptpln. Current design plans indicate that the largest portion of the repository will be excavated in the Tptpll (Board et al. 2002 [157756]). The main distinguishing characteristic among the lithophysal and nonlithophysal units is the percentage of large scale (cm-m) voids within the rock. The Tptpul and Tptpll, as their names suggest, have a higher percentage of lithophysae than the Tptpmn and the Tptpln. Understanding the influence of the lithophysae is of great importance to understanding bulk thermal conductivity and perhaps repository system performance as well. To assess the spatial variability and uncertainty of thermal conductivity, a model is proposed that is functionally dependent on the volume fraction of lithophysae and the thermal conductivity of the matrix portion of the rock. In this model, void space characterized as lithophysae is assumed to be air-saturated under all conditions, while void space characterized as matrix may be either water- or air-saturated. Lithophysae are assumed to be air-saturated under all conditions since the units being studied are all located above the water table in the region of interest, and the relatively strong capillary forces of the matrix will, under most conditions, preferentially retain any moisture present in the rock.

  5. Viscoelastic contact mechanics between randomly rough surfaces

    E-Print Network [OSTI]

    Michele Scaraggi; Bo N. J. Persson

    2014-06-27T23:59:59.000Z

    We present exact numerical results for the friction force and the contact area for a viscoelastic solid (rubber) in sliding contact with hard, randomly rough substrates. The rough surfaces are self-affine fractal with roughness over several decades in length scales. We calculate the contribution to the friction from the pulsating deformations induced by the substrate asperities. We also calculate how the area of real contact, $A(v,p) $, depends on the sliding speed $v$ and on the nominal contact pressure $p$, and we show how the contact area for any sliding speed can be obtained from a universal master curve $A(p)$. The numerical results are found to be in good agreement with the predictions of an analytical contact mechanics theory.

  6. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01T23:59:59.000Z

    This fact sheet contains contact information for program staff and coalition coordinators for the U.S. Department of Energy's Clean Cities program.

  7. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    This fact sheet contains contact information for program staff and coalition coordinators for the U.S. Department of Energy's Clean Cities program.

  8. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01T23:59:59.000Z

    This fact sheet contains contact information for program staff and coalition coordinators for the U.S. Department of Energy's Clean Cities program.

  9. BISON Contact Improvements CASL FY14 Report

    SciTech Connect (OSTI)

    B. W. Spencer; J. D. Hales; D. R. Gaston; D. A. Karpeev; R. L. Williamson; S. R. Novascone; D. M. Perez; R. J. Gardner; K. A. Gamble

    2014-09-01T23:59:59.000Z

    The BISON code is the foundation for multiple fuel performance modeling efforts, and is cur- rently under heavy development. For a variety of fuel forms, the effects of heat conduction across a gap and mechanical contact between components of a fuel system are very significant. It is thus critical that BISON have robust capabilities for enforcement of thermal and mechanical contact. BISON’s solver robustness has generally been quite good before mechanical contact between the fuel and cladding occurs, but there have been significant challenges obtaining converged so- lutions once that contact occurs and the solver begins to enforce mechanical contact constraints. During the current year, significant development effort has been focused on the enforcement of mechanical contact to provide improved solution robustness. In addition to this work to improve mechanical contact robustness, an investigation into ques- tionable results attributable to thermal contact has been performed. This investigation found that the order of integration typically used on the surfaces involved in thermal contact was not suffi- ciently high. To address this problem, a new option was provided to permit the use of a different integration order for surfaces, and new usage recommendations were provided.

  10. A concrete anti-de Sitter black hole with dynamical horizon having toroidal cross-sections and its characteristics

    E-Print Network [OSTI]

    Pouria Dadras; J. T. Firouzjaee; Reza Mansouri

    2012-11-12T23:59:59.000Z

    We propose a special solution of Einstein equations in the general Vaidya form representing a dynamical black hole having horizon cross-sections with toroidal topology. The concrete model enables us to study for the first time dynamical horizons with toroidal topology, its area law, and the question of matter flux inside the horizon, without using a cut-and-paste technology to construct the solution.

  11. Silicone oil contamination and electrical contact resistance degradation of low-force gold contacts.

    SciTech Connect (OSTI)

    Dugger, Michael Thomas; Dickrell, Daniel John, III

    2006-02-01T23:59:59.000Z

    Hot-switched low-force gold electrical contact testing was performed using a nanomechanical test apparatus to ascertain the sensitivity of simulated microelectromechanical systems (MEMS) contact to silicone oil contamination. The observed cyclic contact resistance degradation was dependent on both closure rate and noncontact applied voltage. The decomposition of silicone oil from electrical arcing was hypothesized as the degradation mechanism.

  12. Contact micromechanics in granular media with clay

    SciTech Connect (OSTI)

    Ita, S.L.

    1994-08-01T23:59:59.000Z

    Many granular materials, including sedimentary rocks and soils, contain clay particles in the pores, grain contacts, or matrix. The amount and location of the clays and fluids can influence the mechanical and hydraulic properties of the granular material. This research investigated the mechanical effects of clay at grain-to-grain contacts in the presence of different fluids. Laboratory seismic wave propagation tests were conducted at ultrasonic frequencies using spherical glass beads coated with Montmorillonite clay (SWy-1) onto which different fluids were adsorbed. For all bead samples, seismic velocity increased and attenuation decreased as the contact stiffnesses increased with increasing stress demonstrating that grain contacts control seismic transmission in poorly consolidated and unconsolidated granular material. Coating the beads with clay added stiffness and introduced viscosity to the mechanical contact properties that increased the velocity and attenuation of the propagating seismic wave. Clay-fluid interactions were studied by allowing the clay coating to absorb water, ethyl alcohol, and hexadecane. Increasing water amounts initially increased seismic attenuation due to clay swelling at the contacts. Attenuation decreased for higher water amounts where the clay exceeded the plastic limit and was forced from the contact areas into the surrounding open pore space during sample consolidation. This work investigates how clay located at grain contacts affects the micromechanical, particularly seismic, behavior of granular materials. The need for this work is shown by a review of the effects of clays on seismic wave propagation, laboratory measurements of attenuation in granular media, and proposed mechanisms for attenuation in granular media.

  13. Contact Transition Control: An Experimental Study

    E-Print Network [OSTI]

    Stanford University

    Contact Transition Control: An Experimental Study James M. Hyde and Mark R. Cutkosky Center Successful control of contact transitions is an important capability of dextrous robotic manipulators. In this paper we examine several methods for controlling the transition from free motion to constrained motion

  14. Visible Spirit Gianlorenzo Bernini

    E-Print Network [OSTI]

    the significance of the monumental support he designed for his last work, the great marble bust of the Savior, now than three meters. In a footnote I expressed puzzlement as to how the weight of an over lifesize marble' arms and hands and falls in loose vertical folds to the socle below. The device should not be thought

  15. The Spirit of Innovation

    ScienceCinema (OSTI)

    President Barack Obama

    2013-06-07T23:59:59.000Z

    President Barack Obama gives a speech at Argonne about the importance in investing in American energy as well as scientific research and development.

  16. Anyonic statistics and large horizon diffeomorphisms for Loop Quantum Gravity Black Holes

    E-Print Network [OSTI]

    Andreas G. A. Pithis; Hans-Christian Ruiz Euler

    2015-03-24T23:59:59.000Z

    We investigate the role played by large diffeomorphisms of quantum Isolated Horizons for the statistics of LQG Black Holes by means of their relation to the braid group. To this aim the symmetries of Chern-Simons theory are recapitulated with particular regard to the aforementioned type of diffeomorphisms. For the punctured spherical horizon, these are elements of the mapping class group of $S^2$, which is almost isomorphic to a corresponding braid group on this particular manifold. The mutual exchange of quantum entities in two dimensions is achieved by the braid group, rendering the statistics anyonic. With this we argue that the quantum Isolated Horizon model of LQG based on $SU(2)_k$-Chern-Simons theory explicitly exhibits non-abelian anyonic statistics. In this way a connection to the theory behind the fractional quantum Hall effect and that of topological quantum computation is established, where non-abelian anyons play a significant role.

  17. Condensation of an ideal gas with intermediate statistics on the horizon

    E-Print Network [OSTI]

    Somayeh Zare; Zahra Raissi; Hosein Mohammadzadeh; Behrouz Mirza

    2012-09-22T23:59:59.000Z

    We consider a boson gas on the stretched horizon of the Schwartzschild and Kerr black holes. It is shown that the gas is in a Bose-Einstein condensed state with the Hawking temperature $T_c=T_H$ if the particle number of the system be equal to the number of quantum bits of space-time $ N \\simeq {A}/{{\\l_{p}}^{2}}$. Entropy of the gas is proportional to the area of the horizon $(A)$ by construction. For a more realistic model of quantum degrees of freedom on the horizon, we should presumably consider interacting bosons (gravitons). An ideal gas with intermediate statistics could be considered as an effective theory for interacting bosons. This analysis shows that we may obtain a correct entropy just by a suitable choice of parameter in the intermediate statistics.

  18. Electrical contact resistance degradation of a hot-switched simulated metal MEMS contact.

    SciTech Connect (OSTI)

    Dugger, Michael Thomas; Dickrell, Daniel John, III

    2005-03-01T23:59:59.000Z

    Electrical contact resistance testing was performed by hot-switching a simulated gold-platinum metal microelectromechanical systems contact. The experimental objective was to determine the sensitivity of the contact resistance degradation to current level and environment. The contact resistance increased sharply after 100 hot-switched cycles in air. Hot-switching at a reduced current and in nitrogen atmosphere curtailed contact resistance degradation by several orders of magnitude. The mechanism responsible for the resistance degradation was found to be arc-induced decomposition of adsorbed surface contaminants.

  19. Wave Properties of Plasma Surrounding the Event Horizon of a Non-Rotating Black Hole

    E-Print Network [OSTI]

    M. Sharif; G. Mustafa

    2008-09-09T23:59:59.000Z

    We have studied the wave properties of the cold and isothermal plasma in the vicinity of the Schwarzschild black hole event horizon. The Fourier analyzed perturbed 3+1 GRMHD equations are taken on the basis of which the complex dispersion relations are obtained for non-rotating, rotating non-magnetized and rotating magnetized backgrounds. The propagation and attenuation vectors along with the refractive index are obtained (shown in graphs) to study the dispersive properties of the medium near the event horizon. The results show that no information can be obtained from the Schwarzschild magnetosphere. Further, the pressure ceases the existence of normal dispersion of waves.

  20. Shenanigans at the black hole horizon: pair creation or Boulware accretion?

    E-Print Network [OSTI]

    Israel, Werner

    2015-01-01T23:59:59.000Z

    The current scenario of black hole evaporation holds that the Hawking energy flux $F$ is powered by pair creation at the horizon. However, pair creation produces entanglements, some of which must necessarily be broken before the black hole evaporates completely. That leads to loss of information and violation of unitarity. In this paper, an alternative scenario is suggested that reproduces the essential features of Hawking evaporation, but does not invoke pair creation with its attendant problems. In this "accreting Boulware" scenario, a positive flux $F$ is still an outflux at infinity, but near the horizon it becomes an influx of negative energy. This negative energy flux (marginally) satisfies the Flanagan energy inequality.

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

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

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

  2. Thermodynamics of Evolving Lorentzian Wormholes at Apparent Horizon in $f(R)$ Theory of Gravity

    E-Print Network [OSTI]

    H. Saiedi

    2014-09-08T23:59:59.000Z

    In the context of modified $f(R)$ gravity, we attempt to study the thermodynamic properties of the evolving Lorentzian wormholes at the apparent horizon. It is shown that the wormhole can be derived from a particular $f(R)$ model in the radiation background. Moreover, it has been shown that the field equations can be cast to a similar form $dE = TdS + WdV + Td\\bar{S}$ at the apparent horizon for the evolving Lorentzian wormhole. Compared to the case of Einstein's general relativity, an additional term $Td\\bar{S}$ appears here.

  3. Contact OSUR Program | Princeton Plasma Physics Lab

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

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

  4. Contact Us | Photosynthetic Antenna Research Center

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

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

  5. Contact Us-About-PHaSe-EFRC

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

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

  6. Contact Us | Y-12 National Security Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us Contact Us Please contact us if

  7. Contact Us | Y-12 National Security Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite MapContact Us Contact UsContact Us

  8. Contact | MIT-Harvard Center for Excitonics

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

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

  9. Trade-Offs Between Precision and Computation Horizon in Real-Time Optimal Control of Switched Systems

    E-Print Network [OSTI]

    Egerstedt, Magnus

    Trade-Offs Between Precision and Computation Horizon in Real-Time Optimal Control of Switched computational resources available in many real-time applications, questions concerning trade-offs between the computation horizon and the precision of the solution arise naturally. These trade-offs constitute the main

  10. DualSamplingRate Moving Horizon Control of a Class of Linear Systems with Input Saturation and Plant Uncertainty --

    E-Print Network [OSTI]

    Dual­Sampling­Rate Moving Horizon Control of a Class of Linear Systems with Input Saturation­sampling­rate moving horizon control scheme for a class of linear, continuous­time plants with strict input saturation, it is not computed by a simple linear feedback law, but as a solution of an optimal control problem. As a result

  11. Draft Horizon 2020 Work Programme 2014-2015 in the area of health, demographic change and wellbeing

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universität

    and wellbeing PART 8 - Page 2 of 96 Personalising health and care19 11 2013 Draft Horizon 2020 Work Programme 2014-2015 in the area of health, demographic change of the content of this document. #12;HORIZON 2020 ­ WORK PROGRAMME 2014-2015 Health, demographic change

  12. The 2010 Deepwater Horizon (DH) oil spill in the Gulf of Mexico was unprecedented in both its magnitude --nearly 5

    E-Print Network [OSTI]

    Entekhabi, Dara

    PROBLEM The 2010 Deepwater Horizon (DH) oil spill in the Gulf of Mexico was unprecedented in both of Mexico during the Deepwater Horizon oil spill. This satellite image shows the oil slick off its magnitude -- nearly 5 million barrels of oil spilled over nearly three months -- and its location

  13. National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling THE AMOUNT AND FATE OF THE OIL

    E-Print Network [OSTI]

    Meyers, Steven D.

    - 1 - National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling THE AMOUNT AND FATE OF THE OIL ---Draft--- Staff Working Paper No. 3 Staff Working Papers are written by the staff of the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling for the use of members

  14. Study: Exposure to crude oil from the Deepwater Horizon disaster causes swimming deficiencies in juvenile mahi mahi

    E-Print Network [OSTI]

    Grosell, Martin

    , the 2010 Deepwater Horizon oil spill also had profound impacts on the open ocean and deep sea environmentStudy: Exposure to crude oil from the Deepwater Horizon disaster causes swimming deficiencies in juvenile mahi mahi Posted on June 12, 2014 by Bob Berwyn Evidence is mounting that BP's oil harmed millions

  15. 2005, in Etudes croles nXXVIII n1,Contacts de croles, croles en contacts, L'Harmattan, 23-57. CONTACTS DE CREOLES A MANA (GUYANE FRANAISE)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2005, in Etudes créoles n°XXVIII n°1,Contacts de créoles, créoles en contacts, L'Harmattan, 23°1,Contacts de créoles, créoles en contacts, L'Harmattan, 23-57. 2 de langues, notamment à la gestion

  16. Elastic–Plastic Spherical Contact Modeling Including Roughness Effects

    E-Print Network [OSTI]

    Li, L.; Etsion, I.; Talke, F. E.

    2010-01-01T23:59:59.000Z

    A multilevel model for elastic–plastic contact between ajunction growth of an elastic–plastic spherical contact. J.nite element based elastic–plastic model for the contact of

  17. NUMERICAL MODELING OF CATHODE CONTACT MATERIAL DENSIFICATION

    SciTech Connect (OSTI)

    Koeppel, Brian J.; Liu, Wenning N.; Stephens, Elizabeth V.; Khaleel, Mohammad A.

    2011-11-01T23:59:59.000Z

    Numerical modeling was used to simulate the constrained sintering process of the cathode contact layer during assembly of solid oxide fuel cells (SOFCs). A finite element model based on the continuum theory for sintering of porous bodies was developed and used to investigate candidate low-temperature cathode contact materials. Constitutive parameters for various contact materials under investigation were estimated from dilatometry screening tests, and the influence of processing time, processing temperature, initial grain size, and applied compressive stress on the free sintering response was predicted for selected candidate materials. The densification behavior and generated stresses within a 5-cell planar SOFC stack during sintering, high temperature operation, and room temperature shutdown were predicted. Insufficient constrained densification was observed in the stack at the proposed heat treatment, but beneficial effects of reduced grain size, compressive stack preload, and reduced thermal expansion coefficient on the contact layer densification and stresses were observed.

  18. Contact fatigue : life prediction and palliatives

    E-Print Network [OSTI]

    Conner, Brett P. (Brett Page), 1975-

    2002-01-01T23:59:59.000Z

    Fretting fatigue is defined as damage resulting from small magnitude (0.5-50 microns) displacement between contacting bodies where at least one of the bodies has an applied bulk stress. The applicability and limits of a ...

  19. Cooperativity and Contact Order in Protein Folding

    E-Print Network [OSTI]

    Marek Cieplak

    2004-01-11T23:59:59.000Z

    The effects of cooperativity are studied within Go-Lennard-Jones models of proteins by making the contact interactions dependent on the proximity to the native conformation. The kinetic universality classes are found to remain the same as in the absence of cooperativity. For a fixed native geometry, small changes in the effective contact map may affect the folding times in a chance way and to the extent that is comparable to the shift in the folding times due to cooperativity. The contact order controlls folding scenarios: the average times necessary to bring pairs of amino acids into their near native separations depend on the sequential distances within the pairs. This dependence is largely monotonic, regardless of the cooperativity, and the dominant trend could be described by a single parameter like the average contact order. However, it is the deviations from the trend which are usually found to set the net folding times.

  20. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-12-01T23:59:59.000Z

    Contact information for the U.S. Department of Energy's Clean Cities program staff and for the coordinators of the nearly 100 local Clean Cities coalitions across the country.

  1. Front contact solar cell with formed emitter

    DOE Patents [OSTI]

    Cousins, Peter John

    2014-11-04T23:59:59.000Z

    A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

  2. Front contact solar cell with formed emitter

    DOE Patents [OSTI]

    Cousins, Peter John (Menlo Park, CA)

    2012-07-17T23:59:59.000Z

    A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

  3. Contact Information College of Business and Economics

    E-Print Network [OSTI]

    Barrash, Warren

    Contact Information College of Business and Economics Center for Business Research and Economic Research and Economic Development Center What's your challenge? We help businesses and organizations can lie in Accountancy, Economics, Information Technology and Supply Chain Management, International

  4. Giannini Foundation of Agricultural Economics New Horizons for Rural Reform in China

    E-Print Network [OSTI]

    Kammen, Daniel M.

    11 Giannini Foundation of Agricultural Economics New Horizons for Rural Reform in China: Resources a reform agenda to alleviate rural poverty and improve environmental sustainability in China. It focuses on labor reform, suggesting reductions in the work week and providing incentives aimed at encouraging exit

  5. Receding-horizon Supervisory Control of Green Buildings Truong X. Nghiem, George J. Pappas

    E-Print Network [OSTI]

    Pappas, George J.

    .S. Department of Energy. Consequently, there has been a growing interest in green buildings, i.e., energy]). For this reason, green buildings (i.e., energy-efficient buildings) have been of strong interest not onlyReceding-horizon Supervisory Control of Green Buildings Truong X. Nghiem, George J. Pappas

  6. Renormalized Vacuum Polarization on the Horizon of a Schwarzschild Black Hole Threaded by a Cosmic String

    E-Print Network [OSTI]

    Adrian Ottewill; Peter Taylor

    2010-06-30T23:59:59.000Z

    We obtain an analytic expression for the vacuum polarization on the horizon of the Schwarzschild black hole threaded by an infinite cosmic string. This calculation relies on a generalized Heine identity for Legendre functions which we derive without using specific properties of the Legendre functions themselves.

  7. Offset-free Receding Horizon Control of Constrained Linear Gabriele Pannocchia1 Eric C. Kerrigan2

    E-Print Network [OSTI]

    Cambridge, University of

    Offset-free Receding Horizon Control of Constrained Linear Systems Gabriele Pannocchia1 Eric C stability and offset-free control of constrained linear systems in the presence of time-varying setpoints-free controller and computing an appropriate domain of attraction for this controller. The linear (unconstrained

  8. Analysis of Unconstrained Nonlinear MPC Schemes with Time Varying Control Horizon

    E-Print Network [OSTI]

    Knobloch,Jürgen

    ) has become a well-established method for optimal control of linear and nonlinear systems, see, e state, a finite horizon optimal control problem is solved and the first element (or sometimes also more) of the resulting optimal control sequence is used as input for the next sampling interval(s). This procedure

  9. Dynamic Pricing Strategies under a Finite Time Horizon Joan Morris DiMicco

    E-Print Network [OSTI]

    to scalpers. Cost has been perhaps the greatest factor precluding the widespread use of dynamic pricing goods, but in digital markets, the costs associated with making frequent, instantaneous price changesDynamic Pricing Strategies under a Finite Time Horizon Joan Morris DiMicco MIT Media Laboratory 20

  10. Dark Clouds on the Horizon: Using Cloud Storage as Attack Vector and Online Slack Space

    E-Print Network [OSTI]

    Dark Clouds on the Horizon: Using Cloud Storage as Attack Vector and Online Slack Space Martin this as online slack space. We conclude by discussing security improvements for mod- ern online storage services protocol. With the advent of cloud computing and the shared usage of resources, these centralized storage

  11. An Experimental Study of Stabilizing Receding Horizon Control of Visual Feedback System with Planar Manipulators

    E-Print Network [OSTI]

    manipulator with a camera. The behavior of receding horizon control is almost same as inverse optimal control proposed a Lyapunov based visual feedback control with a planar manipulator [6]. Recently, the inverse cost are given by the control Lyapunov function. The inverse optimal control for the planar manipulator

  12. Disturbance and Recovery of Salt Marsh Arthropod Communities following BP Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    Pennings, Steven C.

    Disturbance and Recovery of Salt Marsh Arthropod Communities following BP Deepwater Horizon Oil of Houston, Houston, Texas, United States of America Abstract Oil spills represent a major environmental.S. Gulf of Mexico is a hub of oil and gas exploration activities that historically have impacted

  13. A problem of hypothetical emerging of matter objects on horizon in the standard model of universe

    E-Print Network [OSTI]

    V. Skalsky

    2000-09-25T23:59:59.000Z

    In the standard model of universe the increase in mass of our observed expansive Universe is explained by the assumption of emerging the matter objects on the horizon (of the most remote visibility). However, the physical analysis of the influence of this assumption on the velocity of matter objects shows unambiguously that this hypothetical assumption contradicts the theory of gravity.

  14. Multi-horizon solar radiation forecasting for Mediterranean locations using time series models

    E-Print Network [OSTI]

    Voyant, Cyril; Muselli, Marc; Nivet, Marie Laure

    2013-01-01T23:59:59.000Z

    Considering the grid manager's point of view, needs in terms of prediction of intermittent energy like the photovoltaic resource can be distinguished according to the considered horizon: following days (d+1, d+2 and d+3), next day by hourly step (h+24), next hour (h+1) and next few minutes (m+5 e.g.). Through this work, we have identified methodologies using time series models for the prediction horizon of global radiation and photovoltaic power. What we present here is a comparison of different predictors developed and tested to propose a hierarchy. For horizons d+1 and h+1, without advanced ad hoc time series pre-processing (stationarity) we find it is not easy to differentiate between autoregressive moving average (ARMA) and multilayer perceptron (MLP). However we observed that using exogenous variables improves significantly the results for MLP . We have shown that the MLP were more adapted for horizons h+24 and m+5. In summary, our results are complementary and improve the existing prediction techniques ...

  15. WHEN GLACIERS BREAK THE ICE BETWEEN SEVERAL SCIENTIFIC HORIZONS T. Landes, P. Grussenmeyer, M. Koehl

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    WHEN GLACIERS BREAK THE ICE BETWEEN SEVERAL SCIENTIFIC HORIZONS T. Landes, P. Grussenmeyer, M temperate glacier activity. For this ambitious purpose, it was necessary to reassemble specialists coming glaciers was a unique opportunity for the MAP-PAGE team, specialized in geodetic surveying and imaging

  16. Proof of linear instability of the Reissner-Nordström Cauchy horizon under scalar perturbations

    E-Print Network [OSTI]

    Jonathan Luk; Sung-Jin Oh

    2015-01-19T23:59:59.000Z

    It has long been suggested that solutions to linear scalar wave equation $$\\Box_g\\phi=0$$ on a fixed subextremal Reissner-Nordstr\\"om spacetime with non-vanishing charge are generically singular at the Cauchy horizon. We prove that generic smooth and compactly supported initial data on a Cauchy hypersurface indeed give rise to solutions with infinite nondegenerate energy near the Cauchy horizon in the interior of the black hole. In particular, the solution generically does not belong to $W^{1,2}_{loc}$. This instability is related to the celebrated blue shift effect in the interior of the black hole. The problem is motivated by the strong cosmic censorship conjecture and it is expected that for the full nonlinear Einstein-Maxwell system, this instability leads to a singular Cauchy horizon for generic small perturbations of Reissner-Nordstr\\"om spacetime. Moreover, in addition to the instability result, we also show as a consequence of the proof that Price's law decay is generically sharp along the event horizon.

  17. Soil animal communities in holm oak forests: influence of horizon, altitude and year

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Soil animal communities in holm oak forests: influence of horizon, altitude and year Nassima-francois.ponge@wanadoo.fr Running title: Soil animals in holm oak forests hal-00498459,version1-7Jul2010 Author manuscript, published in "European Journal of Soil Biology 39, 4 (2003) 197-207" DOI : 10.1016/j.ejsobi.2003.06.001 #12

  18. New insights into microbial responses to oil spills from the Deepwater Horizon incident

    SciTech Connect (OSTI)

    Mason, O.U.; Hazen, T.C.

    2011-06-15T23:59:59.000Z

    On April 20, 2010, a catastrophic eruption of methane caused the Deepwater Horizon exploratory drill rig drilling the Macondo Well in Mississippi Canyon Block 252 (MC252) to explode. The Deepwater Horizon oil spill was unprecendeted for several reasons: the volume of oil released; the spill duration; the well depth; the distance from the shore-line (77 km or about 50 miles); the type of oil (light crude); and the injection of dispersant directly at the wellhead. This study clearly demonstrated that there was a profound and significant response by certain members of the in situ microbial community in the deep-sea in the Gulf of Mexico. In particular putative hydrocarbon degrading Bacteria appeared to bloom in response to the Deepwater Horizon oil spill, even though the temperature at these depths is never >5 C. As the plume aged the shifts in the microbial community on a temporal scale suggested that different, yet metabolically important members of the community were able to respond to a myriad of plume constituents, e.g. shifting from propane/ethane to alkanes and finally to methane. Thus, the biodegradation of hydrocarbons in the plume by Bacteria was a highly significant process in the natural attenuation of many compounds released during the Deepwater Horizon oil spill.

  19. Optimal investment on finite horizon with random discrete order flow in illiquid markets

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    both on trading and observation of the assets. For example, in power markets, trading occurs through at any time but trading occurs more frequently near a terminal horizon. The investor can observe and trade the risky asset only at exogenous random times corresponding to the order flow given

  20. Navier-Stokes on Black Hole Horizons and DC Thermoelectric Conductivity

    E-Print Network [OSTI]

    Aristomenis Donos; Jerome P. Gauntlett

    2015-06-04T23:59:59.000Z

    We consider a general class of black hole solutions of Einstein-Maxwell theory which are holographically dual to CFTs with spatially dependent sources. We show that an averaged DC thermoelectric conductivity matrix can be obtained by solving the forced, linearised, time-independent Navier-Stokes equations on the black hole horizon for an incompressible and charged fluid.

  1. Navier-Stokes on Black Hole Horizons and DC Thermoelectric Conductivity

    E-Print Network [OSTI]

    Donos, Aristomenis

    2015-01-01T23:59:59.000Z

    We consider a general class of black hole solutions of Einstein-Maxwell theory which are holographically dual to CFTs with spatially dependent sources. We show that an averaged DC thermoelectric conductivity matrix can be obtained by solving the forced, linearised, time-independent Navier-Stokes equations on the black hole horizon for an incompressible and charged fluid.

  2. Decay of correlations for flows with unbounded roof function, including the infinite horizon planar

    E-Print Network [OSTI]

    Decay of correlations for flows with unbounded roof function, including the infinite horizon planar for studying nonuniformly hyperbolic flows with unbounded roof functions. In particular, we establish the decay of other classes of flows with unbounded roof functions. For geometric Lorenz attractors (in- cluding

  3. Decay of correlations for flows with unbounded roof function, including the infinite horizon planar

    E-Print Network [OSTI]

    Decay of correlations for flows with unbounded roof function, including the infinite horizon planar for studying nonuniformly hyperbolic flows with unbounded roof functions. In particular, we establish the decay of other classes of flows with unbounded roof functions. For geometric Lorenz attractors (in­ cluding

  4. The stability of Killing-Cauchy horizons in colliding plane wave space-times

    E-Print Network [OSTI]

    J. B. Griffiths

    2005-01-05T23:59:59.000Z

    It is confirmed rigorously that the Killing-Cauchy horizons, which sometimes occur in space-times representing the collision and subsequent interaction of plane gravitational waves in a Minkowski background, are unstable with respect to bounded perturbations of the initial waves, at least for the case in which the initial waves have constant aligned polarizations.

  5. Many Task Computing for Modeling the Fate of Oil Discharged from the Deep Water Horizon Well

    E-Print Network [OSTI]

    tons of crude oil into the Gulf of Mexico. In order to understand the fate and impact of the discharged, causing the riser pipe to rupture and crude oil to flow into the Gulf of Mexico from an approximate depthMany Task Computing for Modeling the Fate of Oil Discharged from the Deep Water Horizon Well

  6. Characterization of Doppler Effects in the Context of Over-the-Horizon Radar

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Characterization of Doppler Effects in the Context of Over-the-Horizon Radar Cornel Ioana Grenoble addresses the problem of the characterization of Doppler effect of maneuvering targets in the context reveals the Doppler effects characterizing the target's trajectory. Analysis of such signals

  7. Estimating Surface Oil Extent from the Deepwater Horizon Oil Spill using ASCAT Backscatter

    E-Print Network [OSTI]

    Long, David G.

    Estimating Surface Oil Extent from the Deepwater Horizon Oil Spill using ASCAT Backscatter Richard Provo, UT 84602 Abstract--The damping effects of oil on capillary ocean waves alter the backscattered backscatter from the ocean surface uncontaminated by surface oil. Large differences between expected

  8. Level and Degradation of Deepwater Horizon Spilled Oil in Coastal Marsh Sediments and Pore-Water

    E-Print Network [OSTI]

    Wang, Yang

    Level and Degradation of Deepwater Horizon Spilled Oil in Coastal Marsh Sediments and Pore the 2010 BP Macondo-1 well oil spill. Very high levels (10-28%) of organic carbon within the heavily oiled chromatograph spectra are in a remarkable narrow range among spilled oils and initial BP crude. At oiled sites

  9. Formation of contact in massive close binaries

    E-Print Network [OSTI]

    S. Wellstein; N. Langer; H. Braun

    2001-02-14T23:59:59.000Z

    We present evolutionary calculations for 74 close binaries systems with initial primary masses in the range 12...25 M_sun, and initial secondary masses between 6 and 24 M_sun. The initial periods were chosen such that mass overflow starts during the core hydrogen burning phase of the primary (Case A), or shortly thereafter (Case B). We assume conservative evolution for contact-free systems, i.e., no mass or angular momentum loss from those system except due to stellar winds. We investigate the borderline between contact-free evolution and contact, as a function of the initial system parameters. We also investigate the effect of the treatment of convection, and found it relevant for contact and supernova order in Case A systems, particularly for the highest considered masses. For Case B systems we find contact for initial periods above approximate 10 days and below. However, in that case (and for not too large periods) contact occurs only after the mass ratio has been reversed, due to the increased fraction of the donor's convective envelope. As most In all Cases we find contact for mass ratios below approximate 0.65. We derive the observable properties of our systems after the major mass transfer event, where the mass gainer is a main sequence or supergiant O or early B type star, and the mass loser is a helium star. We point out that the assumption of conservative evolution for contact-free systems could be tested by finding helium star companions to O stars.

  10. Dialect Contact, Convergence, and Maintenance in Oregon Athabaskan

    E-Print Network [OSTI]

    Spence, Justin

    2013-01-01T23:59:59.000Z

    Contact, Convergence, and Maintenance in Oregon AthabaskanContact, Convergence, and Maintenance in Oregon Athabaskan Jcases of dialect maintenance presented in §5 show that not

  11. New Horizons in Earth Reinforcement Otani, Miyata & Mukunoki (eds) 2008 Taylor & Francis Group, London, ISBN 978-0-415-45775-0

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    , London, ISBN 978-0-415-45775-0 New horizons in reinforced soil technology J.G. Zornberg The University

  12. Andrew Pyper On writerly envy / School Spirits Campus ghost tales / Sunnier Days Solar power's new-found lustre Gum Control The case for universal dental care / Romy Shiller A courageous memoir / Big Blue Canada's fastest computer

    E-Print Network [OSTI]

    Sokolowski, Marla

    Andrew Pyper On writerly envy / School Spirits Campus ghost tales / Sunnier Days Solar power's new. Our team of 150 volunteer students designs and assembles one of Canada's top solar cars to compete at the international level, while building awareness of renewable energy technology using solar cells. I have been

  13. Send an instant message 1 In your Contacts list, double-click a contact.

    E-Print Network [OSTI]

    Paulsson, Johan

    Send an instant message 1 In your Contacts list, double-click a contact. 2 Type a message in the message input area at the bottom of the message box, and then press Enter. 3 (Optional) To add an emoticon the letter A next to the emoticon button. Receive an instant message When someone sends you

  14. SHR Service Team: Academic Divisions -Contact Matrix Primary Contact by Unit/Division

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    SHR Service Team: Academic Divisions - Contact Matrix Primary Contact by Unit/Division Astronomy Consultation Dawn Harker Teresa Roffe Barbara Lorimer Last Revised: 07/07/2010 Mail Stop: SHR-Service Teams Fax: 831-459-2661 1 of 2 #12;SHR Operations Services Team One SHR Partner Services Senior Manager, SHR

  15. Contact Us | National Nuclear Security Administration

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

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

  16. DOE Research and Development Accomplishments Contact Us

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronic Input Options Garyand TechnicalAboutContact Us ContactBlog

  17. Contact Us | Linac Coherent Light Source

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws | NationalContactAboutContact Us

  18. Contacts | Y-12 National Security Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact UsContacts for MicroBooNEContacts

  19. Contact CEFRC - Combustion Energy Frontier Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite Map Homehome / ContactContact CEFRC

  20. Contact Hanford Fire Department - Hanford Site

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite Map Homehome / ContactContact

  1. Contact Us | Argonne Leadership Computing Facility

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

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

  2. Contact Us | Center for Energy Efficient Materials

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

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

  3. Contact Us | National Nuclear Security Administration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite MapContact Us Contact Us NNSA The

  4. Contact Us | Stanford Synchrotron Radiation Lightsource

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

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

  5. Contact us | Energy Frontier Research Centers

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

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

  6. String-theoretic breakdown of effective field theory near black hole horizons

    E-Print Network [OSTI]

    Dodelson, Matthew

    2015-01-01T23:59:59.000Z

    We investigate the validity of the equivalence principle near horizons in string theory, analyzing the breakdown of effective field theory caused by longitudinal string spreading effects. An experiment is set up where a detector is thrown into a black hole a long time after an early infalling string. Light cone gauge calculations, taken at face value, indicate a detectable level of root-mean-square longitudinal spreading of the initial string as measured by the late infaller. This results from the large relative boost between the string and detector in the near horizon region, which develops automatically despite their modest initial energies outside the black hole and the weak curvature in the geometry. We subject this scenario to basic consistency checks, using these to obtain a relatively conservative criterion for its detectability. In a companion paper, we exhibit longitudinal nonlocality in well-defined gauge-invariant S-matrix calculations, obtaining results consistent with the predicted spreading albe...

  7. Study of Yang–Mills–Chern–Simons theory in presence of the Gribov horizon

    SciTech Connect (OSTI)

    Canfora, Fabrizio, E-mail: canfora@cecs.cl [Centro de Estudios Cientificos (CECs), Valdivia (Chile); Universidad Andres Bello, Av. Republica 440, Santiago (Chile); Gomez, Arturo, E-mail: arturo.gomez@proyectos.uai.cl [Departamento de Ciencias, Facultad de Artes Liberales y Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Viña del Mar. (Chile); Sorella, Silvio Paolo, E-mail: sorella@uerj.br [UERJ, Universidade do Estado do Rio de Janeiro (UERJ), Instituto de Física Teórica, Rua São Francisco Xavier 524, 20550-013, Maracaná, Rio de Janeiro (Brazil); Vercauteren, David, E-mail: vercauteren.uerj@gmail.com [UERJ, Universidade do Estado do Rio de Janeiro (UERJ), Instituto de Física Teórica, Rua São Francisco Xavier 524, 20550-013, Maracaná, Rio de Janeiro (Brazil)

    2014-06-15T23:59:59.000Z

    The two-point gauge correlation function in Yang–Mills–Chern–Simons theory in three dimensional Euclidean space is analysed by taking into account the non-perturbative effects of the Gribov horizon. In this way, we are able to describe the confinement and de-confinement regimes, which naturally depend on the topological mass and on the gauge coupling constant of the theory. -- Highlights: •We implement the Gribov quantization to the Topologically massive Yang–Mills theory. •We find a modified propagator at strong coupling by the Gribov horizon. •The gauge propagator depends on the topological mass and the coupling constant. •By studying the gauge propagator we describe the confined–deconfined regimes.

  8. Spherical collapse of a heat conducting fluid in higher dimensions without horizon

    E-Print Network [OSTI]

    A. banerjee; S. Chatterjee

    2004-06-08T23:59:59.000Z

    We consider a scenario where the interior spacetime,described by a heat conducting fluid sphere is matched to a Vaidya metric in higher dimensions.Interestingly we get a class of solutions, where following heat radiation the boundary surface collapses without the appearance of an event horizon at any stage and this happens with reasonable properties of matter field.The non-occurrence of a horizon is due to the fact that the rate of mass loss exactly counterbalanced by the fall of boundary radius.Evidently this poses a counter example to the so-called cosmic censorship hypothesis.Two explicit examples of this class of solutions are also given and it is observed that the rate of collapse is delayed with the introduction of extra dimensions.The work extends to higher dimensions our previous investigation in 4D.

  9. On the Smoothness of the Horizons of Multi-Black Hole Solutions

    E-Print Network [OSTI]

    Dean L. Welch

    1995-02-24T23:59:59.000Z

    In a recent paper it was suggested that some multi-black hole solutions in five or more dimensions have horizons that are not smooth. These black hole configurations are solutions to $d$-dimensional Einstein gravity (with no dilaton) and are extremally charged with a magnetic type $(d-2)$-form. In this work these solutions will be investigated further. It will be shown that although the curvature is bounded as the horizon of one of the black holes is approached, some derivatives of the curvature are not. This shows that the metric is not $C^{\\infty },$ but rather it is only $C^k$ with $k$ finite. These solutions are static so their lack of smoothness cannot be attributed to the presence of radiation.

  10. Vibration Testing of the Pluto/New Horizons Radioisotope Thermoelectric Generator

    SciTech Connect (OSTI)

    Charles D. Griffin

    2006-06-01T23:59:59.000Z

    The Radioisotopic Thermal Generator (RTG) for the Pluto/New Horizons spacecraft was subjected to a flight dynamic acceptance test to demonstrate that it would perform successfully following launch. Seven RTGs of this type had been assembled and tested at Mound, Ohio from 1984 to 1997. This paper chronicles major events in establishing a new vibration test laboratory at the Idaho National Laboratory and the nineteen days of dynamic testing.

  11. Horizon structure of rotating Einstein-Born-Infeld black holes and shadow

    E-Print Network [OSTI]

    Atamurotov, Farruh; Ahmedov, Bobomurat

    2015-01-01T23:59:59.000Z

    We investigate the horizon structure of the rotating Einstein-Born-Infeld solution which goes over to the Einstein-Maxwell's Kerr-Newman solution as the Born-Infeld parameter goes to infinity ($\\beta \\rightarrow \\infty$). We find that for a given $\\beta$, mass $M$ and charge $Q$, there exist critical spinning parameter $a_{E}$ and $r_{H}^{E}$, which corresponds to an extremal Einstein-Born-Infeld black hole with degenerate horizons, and $a_{E}$ decreases and $r_{H}^{E}$ increases with increase in the Born-Infeld parameter $\\beta$. While $aEinstein-Born-Infeld black hole with outer and inner horizons. Similarly, the effect of $\\beta$ on infinite redshift surface and in turn on ergoregion is also included. It is well known that a black hole can cast a shadow as an optical appearance due to its strong gravitational field. We also investigate the shadow cast by the non-rotating ($a=0$) Einstein-Born-Infeld black hole and demonstrate that the null geodesic equations can be integr...

  12. String-theoretic breakdown of effective field theory near black hole horizons

    E-Print Network [OSTI]

    Matthew Dodelson; Eva Silverstein

    2015-04-21T23:59:59.000Z

    We investigate the validity of the equivalence principle near horizons in string theory, analyzing the breakdown of effective field theory caused by longitudinal string spreading effects. An experiment is set up where a detector is thrown into a black hole a long time after an early infalling string. Light cone gauge calculations, taken at face value, indicate a detectable level of root-mean-square longitudinal spreading of the initial string as measured by the late infaller. This results from the large relative boost between the string and detector in the near horizon region, which develops automatically despite their modest initial energies outside the black hole and the weak curvature in the geometry. We subject this scenario to basic consistency checks, using these to obtain a relatively conservative criterion for its detectability. In a companion paper, we exhibit longitudinal nonlocality in well-defined gauge-invariant S-matrix calculations, obtaining results consistent with the predicted spreading albeit not in a direct analogue of the black hole process. We discuss applications of this effect to the firewall paradox, and estimate the time and distance scales it predicts for new physics near black hole and cosmological horizons.

  13. Hawking radiation and the boomerang behavior of massive modes near a horizon

    SciTech Connect (OSTI)

    Jannes, G. [Universite de Nice Sophia Antipolis, Laboratoire J.-A. Dieudonne, UMR CNRS-UNS 6621, Parc Valrose, 06108 Nice Cedex 02 (France); Low Temperature Laboratory, Aalto University School of Science, PO Box 15100, 00076 Aalto (Finland); Maiessa, P.; Rousseaux, G. [Universite de Nice Sophia Antipolis, Laboratoire J.-A. Dieudonne, UMR CNRS-UNS 6621, Parc Valrose, 06108 Nice Cedex 02 (France); Philbin, T. G. [School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, Scotland (United Kingdom)

    2011-05-15T23:59:59.000Z

    We discuss the behavior of massive modes near a horizon based on a study of the dispersion relation and wave packet simulations of the Klein-Gordon equation. We point out an apparent paradox between two (in principle equivalent) pictures of black-hole evaporation through Hawking radiation. In the picture in which the evaporation is due to the emission of positive-energy modes, one immediately obtains a threshold for the emission of massive particles. In the picture in which the evaporation is due to the absorption of negative-energy modes, such a threshold apparently does not exist. We resolve this paradox by tracing the evolution of the positive-energy massive modes with an energy below the threshold. These are seen to be emitted and move away from the black-hole horizon, but they bounce back at a 'red horizon' and are reabsorbed by the black hole, thus compensating exactly for the difference between the two pictures. For astrophysical black holes, the consequences are curious but do not affect the terrestrial constraints on observing Hawking radiation. For analogue-gravity systems with massive modes, however, the consequences are crucial and rather surprising.

  14. Coordinating Inventory Control and Pricing Strategies with Random Demand and Fixed Ordering Cost: the Infinite Horizon Case

    E-Print Network [OSTI]

    Chen, Xin

    We analyze an infinite horizon, single product, periodic review model in which pricing and production/inventory decisions are made simultaneously. Demands in different periods are identically distributed random variables ...

  15. Deepwater Horizon Oil Spill Principal Investigator (PI) Conference Sponsored by the NSTC SOST, hosted by the University of South Florida

    E-Print Network [OSTI]

    Meyers, Steven D.

    Deepwater Horizon Oil Spill Principal Investigator (PI) Conference Sponsored Ballroom · Oil/dispersant - extent and fate Tom Ryerson, National Oceanic and Atmospheric Administration · Oil/dispersant - impacts and mitigation in coastal

  16. For additional information, contact: Department of Physics

    E-Print Network [OSTI]

    Lawrence, Rick L.

    For additional information, contact: Department of Physics Montana State University 264 EPS Building P.O. Box 173840 Bozeman, MT 59717-3840 Tel: 406-994-3614 Fax: 406-994-4452 www.physics.montana.edu physics@montana.edu As a physics major at Montana State University, you will study some of the most

  17. subcollector Schottky collector contact & interconnect metals

    E-Print Network [OSTI]

    Rodwell, Mark J. W.

    base collector depletion layer subcollector ohmic metal (a) base collector depletion layer Schottky metal base emitter collector collector We emitter base emitter emitter We Wc Wc (b) Schottky collector contact & interconnect metals Emitter & collector Ohmics undoped collector depletion layer base N

  18. Contacts Integration into functional nanoscale devices

    E-Print Network [OSTI]

    Metlushko, Vitali

    from the very beginning of the design process. While the properties of nano-scale magnetic devices by magnetoresistive random- access memory (MRAM). The design challenges faced by CMOS and MRAM are very similar of this, the topographical influence of contacts on the overlying magnetic device must be taken account

  19. Contact details: School of Architecture, BCU

    E-Print Network [OSTI]

    Birmingham, University of

    With 90% of the UK population living in urban areas, improving urban sustainability has become a pressing Economic Fabric This work package investigated opportunities and barriers to achieving sustainable is to be sustainable in the widest sense. Contact details: Centre for Urban and Regional Studies, U0B Dr. Austin Barber

  20. Lead Sorption onto Ferrihydrite. 3. Multistage Contacting

    E-Print Network [OSTI]

    Sparks, Donald L.

    , such as arsenic (As) and selenium (Se), from coal-fired power plant wastewater streams via coprecipitation L . S P A R K S Department of Plant and Soil Sciences, University of Delaware, Newark, Delaware for multiple contacting stages is reduced capital investment and operating costs for sludge handling

  1. Thermodynamics of nuclei in thermal contact

    E-Print Network [OSTI]

    Karl-Heinz Schmidt; Beatriz Jurado

    2010-10-05T23:59:59.000Z

    The behaviour of a di-nuclear system in the regime of strong pairing correlations is studied with the methods of statistical mechanics. It is shown that the thermal averaging is strong enough to assure the application of thermodynamical methods to the energy exchange between the two nuclei in contact. In particular, thermal averaging justifies the definition of a nuclear temperature.

  2. Contact Details Journeying Beyond Breast Cancer

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    Home About Contact Details Facebook Search Journeying Beyond Breast Cancer making sense of the cancer experience Feeds: Posts Comments Cancer-fighting fountain pen May 20, 2009 by JBBC A research team be used both as a research tool in the development of next-generation cancer treatments

  3. For additional information, contact: Department of Ecology

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    For additional information, contact: Department of Ecology Montana State University 310 Lewis Hall P.O. Box 173460 Bozeman, MT 59717-3460 Tel: 406-994-4548 Fax: 406-994-3190 www.montana.edu/ecology/ ecology@montana.edu The Department of Ecology at Montana State University offers undergraduate majors

  4. Thin Silicon MEMS Contact-Stress Sensor

    SciTech Connect (OSTI)

    Kotovsky, J; Tooker, A; Horsley, D A

    2009-12-07T23:59:59.000Z

    This work offers the first, thin, MEMS contact-stress (CS) sensor capable of accurate in situ measruement of time-varying, contact-stress between two solid interfaces (e.g. in vivo cartilage contact-stress and body armor dynamic loading). This CS sensor is a silicon-based device with a load sensitive diaphragm. The diaphragm is doped to create piezoresistors arranged in a full Wheatstone bridge. The sensor is similar in performance to established silicon pressure sensors, but it is reliably produced to a thickness of 65 {micro}m. Unlike commercial devices or other research efforts, this CS sensor, including packaging, is extremely thin (< 150 {micro}m fully packaged) so that it can be unobtrusively placed between contacting structures. It is built from elastic, well-characterized materials, providing accurate and high-speed (50+ kHz) measurements over a potential embedded lifetime of decades. This work explored sensor designs for an interface load range of 0-2 MPa; however, the CS sensor has a flexible design architecture to measure a wide variety of interface load ranges.

  5. Contact Anosov flows and the FBI transform

    E-Print Network [OSTI]

    Tsujii, Masato

    2010-01-01T23:59:59.000Z

    This paper is about spectral properties of transfer operators for contact Anosov flows. The main result gives the essential spectral radius of the transfer operators acting on the so-called anisotropic Sobolev space exactly in terms of dynamical exponents. Also we provide a simplified proof by using the FBI transform.

  6. Contact Angle Hysteresis on Superhydrophobic Stripes

    E-Print Network [OSTI]

    Alexander L. Dubov; Ahmed Mourran; Martin Möller; Olga I. Vinogradova

    2014-07-21T23:59:59.000Z

    We study experimentally and discuss quantitatively the contact angle hysteresis on striped superhydrophobic surfaces as a function of a solid fraction, $\\phi_S$. It is shown that the receding regime is determined by a longitudinal sliding motion the deformed contact line. Despite an anisotropy of the texture the receding contact angle remains isotropic, i.e. is practically the same in the longitudinal and transverse directions. The cosine of the receding angle grows nonlinearly with $\\phi_S$, in contrast to predictions of the Cassie equation. To interpret this we develop a simple theoretical model, which shows that the value of the receding angle depends both on weak defects at smooth solid areas and on the elastic energy of strong defects at the borders of stripes, which scales as $\\phi_S^2 \\ln \\phi_S$. The advancing contact angle was found to be anisotropic, except as in a dilute regime, and its value is determined by the rolling motion of the drop. The cosine of the longitudinal advancing angle depends linearly on $\\phi_S$, but a satisfactory fit to the data can only be provided if we generalize the Cassie equation to account for weak defects. The cosine of the transverse advancing angle is much smaller and is maximized at $\\phi_S\\simeq 0.5$. An explanation of its value can be obtained if we invoke an additional energy due to strong defects in this direction, which is shown to be proportional to $\\phi_S^2$. Finally, the contact angle hysteresis is found to be quite large and generally anisotropic, but it becomes isotropic when $\\phi_S\\leq 0.2$.

  7. 5/10/10 7:22 AMTerry Hazen, Berkeley Lab: Deepwater Horizon Spill Detergents Could Make Bad Situation Worse Page 1 of 3http://www.outlookseries.com/N7/Science/3910_Terry_Hazen_Berkeley_La...water_Horizon_Spill_Detergents_Could_Situation_Worse_Terry_Hazen.

    E-Print Network [OSTI]

    Hazen, Terry

    5/10/10 7:22 AMTerry Hazen, Berkeley Lab: Deepwater Horizon Spill Detergents Could Make Bad Situation Worse Page 1 of 3http://www.outlookseries.com/N7/Science/3910_Terry_Hazen_Berkeley_La...water_Horizon_Spill Terry Hazen, Berkeley Lab: Deepwater Horizon Spill Detergents Could Make Bad Situation Worse May 6, 2010

  8. Active alignment/contact verification system

    DOE Patents [OSTI]

    Greenbaum, William M. (Modesto, CA)

    2000-01-01T23:59:59.000Z

    A system involving an active (i.e. electrical) technique for the verification of: 1) close tolerance mechanical alignment between two component, and 2) electrical contact between mating through an elastomeric interface. For example, the two components may be an alumina carrier and a printed circuit board, two mating parts that are extremely small, high density parts and require alignment within a fraction of a mil, as well as a specified interface point of engagement between the parts. The system comprises pairs of conductive structures defined in the surfaces layers of the alumina carrier and the printed circuit board, for example. The first pair of conductive structures relate to item (1) above and permit alignment verification between mating parts. The second pair of conductive structures relate to item (2) above and permit verification of electrical contact between mating parts.

  9. Electrical contact arrangement for a coating process

    DOE Patents [OSTI]

    Kabagambe, Benjamin; McCamy, James W; Boyd, Donald W

    2013-09-17T23:59:59.000Z

    A protective coating is applied to the electrically conductive surface of a reflective coating of a solar mirror by biasing a conductive member having a layer of a malleable electrically conductive material, e.g. a paste, against a portion of the conductive surface while moving an electrodepositable coating composition over the conductive surface. The moving of the electrodepositable coating composition over the conductive surface includes moving the solar mirror through a flow curtain of the electrodepositable coating composition and submerging the solar mirror in a pool of the electrodepositable coating composition. The use of the layer of a malleable electrically conductive material between the conductive member and the conductive surface compensates for irregularities in the conductive surface being contacted during the coating process thereby reducing the current density at the electrical contact area.

  10. Direct contact, binary fluid geothermal boiler

    DOE Patents [OSTI]

    Rapier, Pascal M. (Richmond, CA)

    1982-01-01T23:59:59.000Z

    Energy is extracted from geothermal brines by direct contact with a working fluid such as isobutane which is immiscible with the brine in a geothermal boiler. The geothermal boiler provides a distributor arrangement which efficiently contacts geothermal brine with the isobutane in order to prevent the entrainment of geothermal brine in the isobutane vapor which is directed to a turbine. Accordingly the problem of brine carry-over through the turbine causes corrosion and scaling thereof is eliminated. Additionally the heat exchanger includes straightening vanes for preventing startup and other temporary fluctuations in the transitional zone of the boiler from causing brine carryover into the turbine. Also a screen is provided in the heat exchanger to coalesce the working fluid and to assist in defining the location of the transitional zone where the geothermal brine and the isobutane are initially mixed.

  11. Modelling receding contact lines on superhydrophobic surfaces

    E-Print Network [OSTI]

    B. M. Mognetti; J. M. Yeomans

    2010-10-23T23:59:59.000Z

    We use mesoscale simulations to study the depinning of a receding contact line on a superhydrophobic surface patterned by a regular array of posts. In order that the simulations are feasible, we introduce a novel geometry where a column of liquid dewets a capillary bounded by a superhydrophobic plane which faces a smooth hydrophilic wall of variable contact angle. We present results for the dependence of the depinning angle on the shape and spacing of the posts, and discuss the form of the meniscus at depinning. We find, in agreement with [17], that the local post concentration is a primary factor in controlling the depinning angle, and show that the numerical results agree well with recent experiments. We also present two examples of metastable pinned configurations where the posts are partially wet.

  12. Non-Contact Gaging with Laser Probe

    SciTech Connect (OSTI)

    Clinesmith, Mike

    2009-03-20T23:59:59.000Z

    A gage has been constructed using conventional (high end) components for the application of measuring fragile syntactic foam parts in a non-contact mode. Success with this approach has been achieved through a novel method of transferring (mapping) high accuracy local measurements of a coated aluminum master, taken on a Leitz Coordinate Measurement Machine (CMM), to the gage software system. The mapped data is then associated with local voltage readings from two (inner and outer) laser triangulating probes. This couples discreet laser probe offset and linearity characteristics to the measured master geometry. The gage software compares real part measured data against the master data to provide non-contact part inspection that results in a high accuracy and low uncertainty performance. Uncertainty from the part surface becomes the prevailing contributor to the gaging process. The gaging process provides a high speed, hands off measurement with nearly zero impedance.

  13. Contact Technology Transitions | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortium Support (FixedAboutContact

  14. A Study on Real-time Multibody Simulation with Contacts

    E-Print Network [OSTI]

    - body systems with contact; in its theoretical formulation as well as in its implementation. Contact . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Kinematic Constraints 7 2.1 Constraint Solver Overview . . . . . . . . . . . . . . . . . . . 7 2.2 The Constraint Equations

  15. Protein folding using contact maps Michele Vendruscolo and Eytan Domany

    E-Print Network [OSTI]

    Domany, Eytan

    Protein folding using contact maps Michele Vendruscolo and Eytan Domany Department of Physics 26 I. INTRODUCTION Computational approaches to protein folding are divided into two main categories protein fold prediction. Contact maps are a particularly manageable representation of protein structure

  16. Areas of contact and pressure distribution in bolted joints

    E-Print Network [OSTI]

    Gould, Herbert Hirsch

    1970-01-01T23:59:59.000Z

    When two plates are bolted (or riveted) together these will be in contact in the immediate vicinity of the bolt heads and separated beyond it. The pressure distribution and size of the contact zone is of considerable ...

  17. atomic aluminum contacts: Topics by E-print Network

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

    rear-contact solar cell, we 59 LOSS ANALYSIS OF BACK-CONTACT BACK-JUNCTION THIN-FILM MONOCRYSTALLINE SILICON SOLAR CELLS Renewable Energy Websites Summary: of the...

  18. British Petroleum's Deepwater Horizon Accident and the Thinking, Engaged Workforce - 13265

    SciTech Connect (OSTI)

    Rigot, William L. [Fluor Corporation, Technical Support Services (United States)] [Fluor Corporation, Technical Support Services (United States)

    2013-07-01T23:59:59.000Z

    On April 20, 2010, hydrocarbons escaped from the Macondo well into Transocean's Deepwater Horizon, resulting in fire and multiple explosions. 11 people on the rig died. The billion dollar Deepwater Horizon sank. 4.9 M gallons of product flowed from the well for 87 days creating an environmental nightmare for communities bordering on the Gulf of Mexico. BP established a $20 B reserve to pay for damages. Investigations and legal culpability continue to this day. In September 2010, the Institute for Nuclear Power Operators (INPO) issued Significant Operating Experience Report (SOER) 10-2, Engaged, Thinking Organizations. The industry had experienced 11 events, 9 in US commercial nuclear utilities, and 2 international, that had disturbing trends. The underlying causes highlighted by INPO were inadequate recognition of risk, weaknesses in application of significant operating experience, tolerance of equipment and personnel problems, and a significant drift in standards. While the noted INPO problems and the Deepwater Horizon event appear to have nothing in common, they do exhibit similarities in a drift away from expected behavior on the part of front line workers and their supervisors. At the same time, hidden hazards are accumulating in the environment leading to error intolerant conditions. Without a good understanding of this concept, many organizations tend to focus on the person who 'touched it last', while missing the deeper organizational factors that led that individual to think that what they were doing was correct. An understanding of this failure model is important in reconstruction of events and crafting effective corrective actions. It is much more important, however, for leaders in high hazard industries to recognize when they are approaching error intolerant conditions and take steps immediately to add safety margin. (authors)

  19. U.S. DEPARTMENT OF ENERGY Records Contact Appointment SECTION...

    Office of Environmental Management (EM)

    ENERGY Records Contact Appointment SECTION I. Appointment Pursuant to DOE Order 243.1B, Records Management Program, (Name) ...

  20. On quantum effects in the vicinity of would-be horizons

    E-Print Network [OSTI]

    P. Marecki

    2006-12-28T23:59:59.000Z

    We present a method based on the so-called Quantum Energy Inequalities, which allows to compare, and bound, the expectation values of energy-densities of ground states of quantum fields in spacetimes possessing isometric regions. The method supports the conclusion, that the Boulware energy density is universal both: at modest (and far) distances from compact spherical objects, and close to the would-be horizons of the gravastar/QBHO spacetimes. It also provides a natural consistency check for concrete (approximate, numerical) calculations of the expectation values of the energy-momentum tensors.

  1. Pedagogical notes on black holes, de Sitter space, and bifurcated horizons

    E-Print Network [OSTI]

    Tom Banks

    2010-07-22T23:59:59.000Z

    I discuss black hole evaporation in two different coordinate systems and argue that the results of the two are compatible once one takes the holographic principle into account. de Sitter space is then discussed along similar lines. Finally I make some remarks about smooth initial conditions in GR, which evolve to space-times with bifurcate horizons, and emphasize the care one must take in identifying spaces of solutions of General Relativity which belong to the same quantum theory of gravity. No really new material is presented, but the point of view I take on all 3 subjects is not widely appreciated.

  2. Microsoft Word - Horizon Wind Energy Comments.docx | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked Questions forCheneyNovember S.Fluor-B&W OE-781R DOE RFI on Smart GridHorizon

  3. Einstein Manifolds and Contact Geometry Charles P. Boyer Krzysztof Galicki

    E-Print Network [OSTI]

    Einstein Manifolds and Contact Geometry Charles P. Boyer Krzysztof Galicki Abstract. We show that every K­contact Einstein manifold is Sasakian­Einstein and discuss several corollaries of this result. 1 types of Riemannian contact manifolds to construct Einstein metrics of positive scalar curvature

  4. Ohmic contacts to p-type GaP

    E-Print Network [OSTI]

    Jorge Estevez, Humberto Angel

    1996-01-01T23:59:59.000Z

    was measured by the Cox-Strack method. Ohmic contacts based on the Zn/Pd system were developed. The Zn(350A)/Pd(IOOA)/p-GaP and Zn(350A)/Pd(IOOA)/p-GaP gave rather high values of the contact resistivity, 3-8xl 0-4 f2CM2. An improvement in the contact...

  5. ASYMPTOTIC SHAPE FOR THE CONTACT PROCESS IN RANDOM ENVIRONMENT

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ASYMPTOTIC SHAPE FOR THE CONTACT PROCESS IN RANDOM ENVIRONMENT OLIVIER GARET AND R´EGINE MARCHAND in stationary random environment. These theorems gen- eralize known results for the classical contact process environment, when the contact process survives, the set Ht/t almost surely converges to a compact set

  6. Ohmic contacts to p-type GaP 

    E-Print Network [OSTI]

    Jorge Estevez, Humberto Angel

    1996-01-01T23:59:59.000Z

    was measured by the Cox-Strack method. Ohmic contacts based on the Zn/Pd system were developed. The Zn(350A)/Pd(IOOA)/p-GaP and Zn(350A)/Pd(IOOA)/p-GaP gave rather high values of the contact resistivity, 3-8xl 0-4 f2CM2. An improvement in the contact...

  7. Apparent horizon and gravitational thermodynamics of the Universe: The temperature confusion, first and second laws, and extensions to modified gravity

    E-Print Network [OSTI]

    Tian, David Wenjie

    2014-01-01T23:59:59.000Z

    The thermodynamics of the Universe is re-studied by requiring its compatibility with the holographic-style gravitational equations which govern the dynamics of both the cosmological apparent horizon and the entire Universe. We start from the Lambda Cold Dark Matter ($\\Lambda$CDM) cosmology of general relativity (GR) to establish a framework for the gravitational thermodynamics. The Clausius equation $T_AdS_A=-A_A \\psi_t$ for the isochoric process of an instantaneous apparent horizon indicates that, the Universe and its horizon entropies encode the Positive Out thermodynamic sign convention, which encourage us to adjust the traditional positive-heat-in Gibbs equation into the positive-heat-out version $dE_m=-T_mdS_m-P_mdV$. It turns out that the standard and the generalized second laws (GSLs) of nondecreasing entropies are always respected by the event-horizon system as long as the expanding Universe is dominated by nonexotic matter $-1\\leq w_m\\leq 1$, while for the apparent-horizon simple open system the two ...

  8. Assembly and Testing of a Radioisotope Power System for the New Horizons Spacecraft

    SciTech Connect (OSTI)

    Kenneth E. Rosenberg; Stephen G. Johnson

    2006-06-01T23:59:59.000Z

    The Idaho National Laboratory (INL) recently fueled and assembled a radioisotope power system (RPS) that was used upon the New Horizons spacecraft which was launched in January 2006. New Horizons is the first mission to the last planet - the initial reconnaissance of Pluto-Charon and the Kuiper Belt, exploring the mysterious worlds at the edge of our solar system. The RPS otherwise known as a "space battery" converts thermal heat into electrical energy. The thermal heat source contains plutonium dioxide in the form of ceramic pellets encapsulated in iridium metal. The space battery was assembled in a new facility at the Idaho National Laboratory site near Idaho Falls, Idaho. The new facility has all the fueling and testing capabilities including the following: the ability to handle all the shipping containers currently certified to ship Pu-238, the ability to fuel a variety of RPS designs, the ability to perform vibrational testing to simulate transportation and launch environments, welding systems, a center of mass determination device, and various other support systems.

  9. On the construction of Hartle-Hawking-Israel states across a static bifurcate Killing horizon

    E-Print Network [OSTI]

    Ko Sanders

    2015-01-29T23:59:59.000Z

    We consider a linear scalar quantum field propagating in a space-time with a static bifurcate Killing horizon and a wedge reflection. We prove the existence of a Hadamard state which is pure, quasi-free, invariant under the Killing flow and which restricts to a double KMS state at the inverse Hawking temperature on the union of the exterior wedge regions. The existence of such a state was first conjectured by Hartle and Hawking (1976) and Israel (1976) for stationary black hole space times. Our result complements a uniqueness result of Kay and Wald (1991), who considered a general bifurcate Killing horizon and proved that a certain (large) subalgebra of the free field algebra admits at most one Hadamard state which is invariant under the Killing flow. In the presence of a wedge reflection this state reduces to a pure, quasi-free KMS state on the smaller subalgebra associated to one of the exterior wedge regions. Our result establishes the existence of such a state on the full algebra in the static case. Our proof follows the arguments of Sewell (1982) and Jacobson (1994), exploiting a Wick rotation in the Killing time coordinate to construct a corresponding Euclidean theory. Because the Killing time coordinate is ill-defined on the bifurcation surface we systematically replace it by a Gaussian normal coordinate. A crucial part of our proof is to establish that the Euclidean ground state satisfies the necessary analogs of analyticity and reflection positivity with respect to this coordinate.

  10. Stringy Stability of Charged Dilaton Black Holes with Flat Event Horizon

    E-Print Network [OSTI]

    Yen Chin Ong; Pisin Chen

    2014-12-29T23:59:59.000Z

    Electrically charged black holes with flat event horizon in anti-de Sitter space have received much attention due to various applications in Anti-de Sitter/Conformal Field Theory (AdS/CFT) correspondence, from modeling the behavior of quark-gluon plasma to superconductor. Crucial to the physics on the dual field theory is the fact that when embedded in string theory, black holes in the bulk may become vulnerable to instability caused by brane pair-production. Since dilaton arises naturally in the context of string theory, we study the effect of coupling dilaton to Maxwell field on the stability of flat charged AdS black holes. In particular, we study the stability of Gao-Zhang black holes, which are locally asymptotically anti-de Sitter. We find that for dilaton coupling parameter $\\alpha$ > 1, flat black holes are stable against brane pair production, however for 0 electrical charges is increased. Such instability however, behaves somewhat differently from that of flat Reissner-Nordstr\\"om black holes. In addition, we prove that the Seiberg-Witten action of charged dilaton AdS black hole of Gao-Zhang type with flat event horizon (at least in 5-dimension) is always logarithmically divergent at infinity for finite values of $\\alpha$, and is finite and positive in the case $\\alpha$ tends to infinity . We also comment on the robustness of our result for other charged dilaton black holes that are not of Gao-Zhang type.

  11. Hagedorn String Thermodynamics in Curved Spacetimes and near Black Hole Horizons

    E-Print Network [OSTI]

    Thomas G. Mertens

    2015-06-25T23:59:59.000Z

    This thesis concerns the study of high-temperature string theory on curved backgrounds, generalizing the notions of Hagedorn temperature and thermal scalar to general backgrounds. Chapter 2 contains a review on string thermodynamics in flat space, setting the stage. Chapters 3 and 4 contain the detailed study of the random walk picture in a general curved background. Chapters 5 and 6 then apply this to Rindler space, the near-horizon approximation of a generic (uncharged) black hole. Chapters 7 and 8 contain a study of the AdS3 and BTZ WZW models where we study the thermal spectrum and the resulting random walk picture that emerges. Chapters 9 and 10 attempt to draw general conclusions from the study of the two specific examples earlier: we draw lessons on string thermodynamics in general and on (perturbative) string thermodynamics around black hole horizons. For the latter, we point out a possible link to the firewall paradox. Finally, chapter 11 contains a detailed discussion on the near-Hagedorn (and high-energy) stress tensor in a generic spacetime, the results of which are applied to provide a description of the Bekenstein-Hawking entropy in terms of long string equilibration.

  12. Iridium abundance measurements across bio-event horizons in the fossil record

    SciTech Connect (OSTI)

    Orth, C.J.; Attrep, M. Jr.; Quintana, L.R. (Los Alamos National Lab., NM (USA))

    1989-01-01T23:59:59.000Z

    Geochemical measurements have been performed on thousands of rock samples collected across bio-event horizons using Instrumental Neutron Activation Analysis (INAA) for about 40 common and trace elements and radiochemical isolation procedures for Ir. On selected samples, Os, Pt and Au were also radiochemically determined. These studies have encompassed the time interval from the Precambrian-Cambrian transition to the Late Eocene impact (microspherule) horizons. Our early work strengthened the Alvarez impact hypothesis by finding the Ir (PGE) anomaly at the K-T boundary in continental sedimentary sequences. In collaborations with paleontologists, weak to moderately string Ir anomalies have been discovered at the Frasnian-Famennian boundary in Australia, in the Early Mississippian of Oklahoma, at the Mississipian-Pennsylvanian boundary of Oklahoma and Texas, and in the Late Cenomanian throughout the western interior of North America and on the south coast of England to date. We have found no compelling evidence for an impact related cause for these anomalies although PGE impact signatures in the two Late Cenomanian anomalies could be masked by the strong terrestrial mafic to ultramafic overprint. Thus far, our evidence for extinction events older than the terminal Cretaceous does not support recent hypotheses which suggest that impacts from cyclic swarms of comets in the inner Solar system were responsible for the periodic mass extinctions. 50 refs., 7 figs., 3 tabs.

  13. Contact | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us Contact UsContactContactContact

  14. Collegiate Wind Competition Contacts | Department of Energy

    Office of Environmental Management (EM)

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  15. Fermilab | Illinois Accelerator Research Center | Contact IARC

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  16. NREL: Email Contact for NREL Newsroom

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  17. Contacts for Cybersecurity | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010Conferencing and SpecialUs ContactUs

  18. Contacts for Services | Department of Energy

    Energy Savers [EERE]

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  19. Administrative Contacts | Stanford Synchrotron Radiation Lightsource

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  20. Contact Information Systems | The Ames Laboratory

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  1. Contact Us - HPMC Occupational Health Services

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  2. ORISE Science Education Programs: Contact Us

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  3. ORISE: Contact Us - Scientific Peer Review

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  4. ORISE: Contact Us | Worker Health Studies

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  5. Tribal Points of Contacts | Department of Energy

    Energy Savers [EERE]

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  6. coal contacts | netl.doe.gov

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  7. Energy Saver Website Contact | Department of Energy

    Office of Environmental Management (EM)

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  8. Legacy Management Contacts | Department of Energy

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  9. Fermilab Office of General Counsel - Contact Us

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  10. Contact Information | Princeton Plasma Physics Lab

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  12. Template:ContactInfo | Open Energy Information

    Open Energy Info (EERE)

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  14. Property:Geothermal/Contact | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska:PrecourtOid Jump to:Docket NumberGeothermal/Contact" Showing 25

  15. PBL Customer Service Centers (pbl/contact)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomass and BiofuelsOversightandCenter PARC2012)I,Contact Power

  16. Method of forming contacts for a back-contact solar cell

    DOE Patents [OSTI]

    Manning, Jane

    2013-07-23T23:59:59.000Z

    Methods of forming contacts for back-contact solar cells are described. In one embodiment, a method includes forming a thin dielectric layer on a substrate, forming a polysilicon layer on the thin dielectric layer, forming and patterning a solid-state p-type dopant source on the polysilicon layer, forming an n-type dopant source layer over exposed regions of the polysilicon layer and over a plurality of regions of the solid-state p-type dopant source, and heating the substrate to provide a plurality of n-type doped polysilicon regions among a plurality of p-type doped polysilicon regions.

  17. Microbial gene functions enriched in the Deepwater Horizon deep-sea oil plume

    SciTech Connect (OSTI)

    Lu, Z.; Deng, Y.; Nostrand, J.D. Van; He, Z.; Voordeckers, J.; Zhou, A.; Lee, Y.-J.; Mason, O.U.; Dubinsky, E.; Chavarria, K.; Tom, L.; Fortney, J.; Lamendella, R.; Jansson, J.K.; D?haeseleer, P.; Hazen, T.C.; Zhou, J.

    2011-06-15T23:59:59.000Z

    The Deepwater Horizon oil spill in the Gulf of Mexico is the deepest and largest offshore spill in U.S. history and its impacts on marine ecosystems are largely unknown. Here, we showed that the microbial community functional composition and structure were dramatically altered in a deep-sea oil plume resulting from the spill. A variety of metabolic genes involved in both aerobic and anaerobic hydrocarbon degradation were highly enriched in the plume compared to outside the plume, indicating a great potential for intrinsic bioremediation or natural attenuation in the deep-sea. Various other microbial functional genes relevant to carbon, nitrogen, phosphorus, sulfur and iron cycling, metal resistance, and bacteriophage replication were also enriched in the plume. Together, these results suggest that the indigenous marine microbial communities could play a significant role in biodegradation of oil spills in deep-sea environments.

  18. Extremal Rotating Black Holes in the Near-Horizon Limit: Phase Space and Symmetry Algebra

    E-Print Network [OSTI]

    Compère, G; Seraj, A; Sheikh-Jabbari, M M

    2015-01-01T23:59:59.000Z

    We construct the NHEG phase space, the classical phase space of Near-Horizon Extremal Geometries with fixed angular momenta and entropy, and with the largest symmetry algebra. We focus on vacuum solutions to $d$ dimensional Einstein gravity. Each element in the phase space is a geometry with $SL(2,R)\\times U(1)^{d-3}$ Killing isometries which has vanishing $SL(2,R)$ and constant $U(1)$ charges. We construct an on-shell vanishing symplectic structure, which leads to an infinite set of symplectic symmetries. In four spacetime dimensions, the phase space is unique and the symmetry algebra consists of the familiar Virasoro algebra, while in $d > 4$ dimensions the symmetry algebra, the NHEG algebra, contains infinitely many Virasoro subalgebras. The nontrivial central term of the algebra is proportional to the black hole entropy. This phase space and in particular its symmetries might serve as a basis for a semiclassical description of extremal rotating black hole microstates.

  19. Black Hole spin dependence of general relativistic multi-transonic accretion close to the horizon

    E-Print Network [OSTI]

    Tapas K. Das; Sankhasubhra Nag; Swathi Hegde; Sourav Bhattacharya; Ishita Maity; Bozena Czerny; Paramita Barai; Paul J. Wiita; Vladimir Karas; Tapan Naskar

    2014-12-31T23:59:59.000Z

    We introduce a novel formalism to investigate the role of the spin angular momentum of astrophysical black holes in influencing the behaviour of low angular momentum general relativistic accretion. We propose a metric independent analysis of axisymmetric general relativistic flow, and consequently formulate the space and time dependent equations describing the general relativistic hydrodynamic accretion flow in the Kerr metric. The associated stationary critical solutions for such flow equations are provided and the stability of the stationary transonic configuration is examined using an elegant linear perturbation technique. We examine the properties of infalling material for both prograde and retrograde accretion as a function of the Kerr parameter at extremely close proximity to the event horizon. Our formalism can be used to identify a new spectral signature of black hole spin, and has the potential of performing the black hole shadow imaging corresponding to the low angular momentum accretion flow.

  20. Gödel black hole, closed timelike horizon, and the study of particle emissions

    E-Print Network [OSTI]

    Sourav Bhattacharya; Anirban Saha

    2010-07-22T23:59:59.000Z

    We show that a particle, with positive orbital angular momentum, following an outgoing null/timelike geodesic, shall never reach the closed timelike horizon (CTH) present in the $(4+1)$-dimensional rotating G\\"{o}del black hole space-time. Therefore a large part of this space-time remains inaccessible to a large class of geodesic observers, depending on the conserved quantities associated with them. We discuss how this fact and the existence of the closed timelike curves present in the asymptotic region make the quantum field theoretic study of the Hawking radiation, where the asymptotic observer states are a pre-requisite, unclear. However, the semiclassical approach provides an alternative to verify the Smarr formula derived recently for the rotating G\\"{o}del black hole. We present a systematic analysis of particle emissions, specifically for scalars, charged Dirac spinors and vectors, from this black hole via the semiclassical complex path method.

  1. Lyapunov exponents and anomalous diffusion of a Lorentz gas with infinite horizon using approximate zeta functions

    SciTech Connect (OSTI)

    Dahlqvist, P. [Royal Inst. of Technology, Stockholm (Sweden)

    1996-08-01T23:59:59.000Z

    We compute the Lyapunov exponent, the generalized Lyapunov exponents, and the diffusion constant for a Lorentz gas on a square lattice, thus having infinite horizon. Approximate zeta functions, written in terms of probabilities rather than periodic orbits, are used in order to avoid the convergence problems of cycle expansions. The emphasis is on the relaxation between the analytic structure of the zeta function, where a branch cut plays an important role, and the asymptotic dynamics of the system. The Lyapunov exponent for the corresponding map agrees with the conjectured limit {lambda}{sub map}=-2 log(R) + C + O(R) and we derive an approximate value for the constant C in good agreement with numerical simulations. We also find a diverging diffusion constant D(t){approx}log t and a phase transition for the generalized Lyapunov exponents.

  2. Contact structure for use in catalytic distillation

    DOE Patents [OSTI]

    Jones, E.M. Jr.

    1984-03-27T23:59:59.000Z

    A method is described for conducting catalytic chemical reactions and fractionation of the reaction mixture comprising feeding reactants into a distillation column reactor, contracting said reactant in liquid phase with a fixed bed catalyst in the form of a contact catalyst structure consisting of closed porous containers containing the catalyst for the reaction and a clip means to hold and support said containers, which are disposed above, i.e., on the distillation trays in the tower. The trays have weir means to provide a liquid level on the trays to substantially cover the containers. In other words, the trays function in their ordinary manner with the addition thereto of the catalyst. The reaction mixture is concurrently fractionated in the column. 7 figs.

  3. Contact structure for use in catalytic distillation

    DOE Patents [OSTI]

    Jones, E.M. Jr.

    1985-08-20T23:59:59.000Z

    A method and apparatus are disclosed for conducting catalytic chemical reactions and fractionation of the reaction mixture, comprising and feeding reactants into a distillation column reactor contracting said reactant in a liquid phase with a fixed bed catalyst in the form of a contact catalyst structure, consisting of closed porous containers containing the catalyst for the reaction and a clip means to hold and support said containers, which are disposed above, i.e., on the distillation trays in the tower. The trays have weir means to provide a liquid level on the trays to substantially cover the containers. In other words, the trays function in their ordinary manner with the addition thereto of the catalyst. The reaction mixture is concurrently fractionated in the column. 7 figs.

  4. Contact structure for use in catalytic distillation

    DOE Patents [OSTI]

    Jones, Jr., Edward M. (Friendswood, TX)

    1984-01-01T23:59:59.000Z

    A method for conducting catalytic chemical reactions and fractionation of the reaction mixture comprising feeding reactants into a distillation column reactor contracting said reactant in liquid phase with a fixed bed catalyst in the form of a contact catalyst structure consisting of closed porous containers containing the catatlyst for the reaction and a clip means to hold and support said containers, which are disposed above, i.e., on the distillation trays in the tower. The trays have weir means to provide a liquid level on the trays to substantially cover the containers. In other words, the trays function in their ordinary manner with the addition thereto of the catalyst. The reaction mixture is concurrently fractionated in the column.

  5. Contact structure for use in catalytic distillation

    DOE Patents [OSTI]

    Jones, Jr., Edward M. (Friendswood, TX)

    1985-01-01T23:59:59.000Z

    A method and apparatus for conducting catalytic chemical reactions and fractionation of the reaction mixture, comprising and feeding reactants into a distillation column reactor contracting said reactant in a liquid phase with a fixed bed catalyst in the form of a contact catalyst structure, consisting of closed porous containers containing the catalyst for the reaction and a clip means to hold and support said containers, which are disposed above, i.e., on the distillation trays in the tower. The trays have weir means to provide a liquid level on the trays to substantially cover the containers. In other words, the trays function in their ordinary manner with the addition thereto of the catalyst. The reaction mixture is concurrently fractionated in the column.

  6. Modelling contact angle hysteresis on chemically patterned and superhydrophobic surfaces

    E-Print Network [OSTI]

    H. Kusumaatmaja; J. M. Yeomans

    2006-11-03T23:59:59.000Z

    We investigate contact angle hysteresis on chemically patterned and superhydrophobic surfaces, as the drop volume is quasi-statically increased and decreased. We consider both two, and three, dimensions using analytical and numerical approaches to minimise the free energy of the drop. In two dimensions we find, in agreement with other authors, a slip, jump, stick motion of the contact line. In three dimensions this behaviour persists, but the position and magnitude of the contact line jumps are sensitive to the details of the surface patterning. In two dimensions we identify analytically the advancing and receding contact angles on the different surfaces and we use numerical insights to argue that these provide bounds for the three dimensional cases. We present explicit simulations to show that a simple average over the disorder is not sufficient to predict the details of the contact angle hysteresis, and to support an explanation for the low contact angle hysteresis of suspended drops on superhydrophobic surfaces.

  7. Draft Horizon 2020 Work Programme 2014-2015 in the area of Food security, sustainable agriculture and forestry,

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universität

    agriculture and forestry, marine and maritime and inland water research and the bioeconomy Important notice of this document. #12;HORIZON 2020 ­ WORK PROGRAMME 2014-2015 Food security, sustainable agriculture and forestry ..................... 14 SFS-7-2014/2015: Genetic resources and agricultural diversity for food security, productivity

  8. Renormalized Vacuum Polarization and Stress Tensor on the Horizon of a Schwarzschild Black Hole Threaded by a Cosmic String

    E-Print Network [OSTI]

    Adrian C. Ottewill; Peter Taylor

    2010-10-19T23:59:59.000Z

    We calculate the renormalized vacuum polarization and stress tensor for a massless, arbitrarily coupled scalar field in the Hartle-Hawking vacuum state on the horizon of a Schwarzschild black hole threaded by an infinte straight cosmic string. This calculation relies on a generalized Heine identity for non-integer Legendre functions which we derive without using specific properties of the Legendre functions themselves.

  9. Adaptive Receding Horizon Control of Tubular Bioreactors J.M. Igreja, J. M. Lemos and R. N. Silva

    E-Print Network [OSTI]

    Sontag, Eduardo

    Adaptive Receding Horizon Control of Tubular Bioreactors J.M. Igreja, J. M. Lemos and R. N. Silva algorithm to tubular bioreactors. According to the control strategy proposed, the system of PDEs describing bioreactors. The approach followed consists in approximating the hyperbolic PDE describing the plant

  10. A knowledge-based approach of seismic interpretation : horizon and dip-fault detection by means of cognitive vision.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A knowledge-based approach of seismic interpretation : horizon and dip-fault detection by means presents preliminary results obtained through a new seismic interpretation methodology based on cognitive building process. The efforts currently made to improve seismic interpretation are mainly focused

  11. Load Reduction of Wind Turbines Using Receding Horizon Control Mohsen Soltani, Rafael Wisniewski, Per Brath, and Stephen Boyd

    E-Print Network [OSTI]

    Load Reduction of Wind Turbines Using Receding Horizon Control Mohsen Soltani, Rafael Wisniewski, Per Brath, and Stephen Boyd Abstract-- Large scale wind turbines are lightly damped mechanical% respectively, when compared to a conventional controller. I. INTRODUCTION The size of wind turbine structures

  12. apolar contact area: Topics by E-print Network

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

    We study the adhesive contact between elastic solids with randomly rough, self affine fractal surfaces. We present molecular dynamics (MD) simulation results for the interfacial...

  13. Registered_Lobbyist_Contact_Disclosure_Form.pdf | Department...

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

    egisteredLobbyistContactDisclosureForm.pdf More Documents & Publications Lobbyist Disclosure Form - AltEn Interested Parties - Shipp Interested Parties - Smith Dawson & Andrews...

  14. Federal Energy Management Program Contacts | Department of Energy

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

    Contact information is available for Federal Energy Management Program (FEMP) leadership and staff members. The program is directed by Dr. Timothy Unruh. General Information...

  15. Central Characterization Program (CCP) Contact-Handled (CH) TRU...

    Office of Environmental Management (EM)

    and Waste Information SystemWaste Data System (WWISWDS) Data Entry Central Characterization Program (CCP) Contact-Handled (CH) TRU Waste Certification and Waste Information...

  16. The contact of elastic regular wavy surfaces revisited

    E-Print Network [OSTI]

    Vladislav A. Yastrebov; Guillaume Anciaux Jean-Francois Molinari

    2014-09-05T23:59:59.000Z

    We revisit the classic problem of an elastic solid with a two-dimensional wavy surface squeezed against an elastic flat half-space from infinitesimal to full contact. Through extensive numerical calculations and analytic derivations, we discover previously overlooked transition regimes. These are seen in particular in the evolution with applied load of the contact area and perimeter, the mean pressure and the probability density of contact pressure. These transitions are correlated with the contact area shape, which is affected by long range elastic interactions. Our analysis has implications for general random rough surfaces, as similar local transitions occur continuously at detached areas or coalescing contact zones. We show that the probability density of null contact pressures is non-zero at full contact. This might suggest revisiting the conditions necessary for applying Persson's model at partial contacts and guide the comparisons with numerical simulations. We also address the evaluation of the contact perimeter for discrete geometries and the applicability of Westergaard's solution for three-dimensional geometries.

  17. Contacts for the Deputy General Counsel for Litigation, Regulation...

    Energy Savers [EERE]

    Litigation, Regulation and Enforcement (GC-30) Contacts for the Deputy General Counsel for Litigation, Regulation and Enforcement (GC-30) Anne Harkavy, Deputy General Counsel for...

  18. Contact | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us Contact UsContactContact

  19. Apparent horizon and gravitational thermodynamics of the Universe: Solutions to the temperature and entropy confusions, and extensions to modified gravity

    E-Print Network [OSTI]

    David Wenjie Tian; Ivan Booth

    2015-01-22T23:59:59.000Z

    Thermodynamics of the Universe is restudied by requiring its compatibility with the holographic-style gravitational equations which govern the dynamics of both the cosmological apparent horizon and the entire Universe. We start from the Lambda Cold Dark Matter ($\\Lambda$CDM) cosmology of general relativity (GR) to establish a framework for the gravitational thermodynamics. The Cai-Kim Clausius equation $T_{\\text{A}}dS_{\\text{A}}=-dE_{\\text{A}}=-A_{\\text{A}} \\psi_t$ for the isochoric process of an instantaneous apparent horizon indicates that, the Universe and its horizon entropies encode the Positive Out thermodynamic sign convention, which encourage us to adjust the traditional positive-heat-in Gibbs equation into the positive-heat-out version $dE_m=-T_mdS_m-P_mdV$. It turns out that the standard and the generalized second laws (GSLs) of nondecreasing entropies are always respected by the event-horizon system as long as the expanding Universe is dominated by nonexotic matter $-1\\leq w_m\\leq 1$, while for the apparent-horizon simple open system the two second laws hold if $-1\\leq w_martificial local equilibrium assumption is abandoned in the GSL. All constraints regarding entropy evolution are expressed by the equation of state parameters, which show that from a thermodynamic perspective the phantom dark energy is less favored than the cosmological constant and the quintessence. Finally, the whole framework is extended from GR and $\\Lambda$CDM to modified gravities with field equations $R_{\\mu\

  20. Meditations on Place and Spirit

    E-Print Network [OSTI]

    Schlegel, Lisa

    2011-05-31T23:59:59.000Z

    This is a collection of essays loosely grouped under the subject of "nature writing." Each work focuses on a specific place and experiences I have had in the natural world. I focus on western Kansas, where I was raised in ...

  1. Making Contact: Getting the Group Communicating with Groupware

    E-Print Network [OSTI]

    Greenberg, Saul

    is that people must be in contact with one another. Relationships must be established, and many interactions that overcomes distance barriers is available. Many mundane factors interfere with making contact. People must, people must find each other with minimal effort. People must also select one or more of the many

  2. Event Logistics Checklist and Contacts Questions to consider

    E-Print Network [OSTI]

    Sherrill, David

    will my space need to include? 4. How many people will be attending? a. For every 250 people, one security/Chairs/Tents Questions to Consider: 1. Will people be sitting at your event? 2. How many people are attending? 3. Do you people, an EMT is expected. GTPD can provide contacts for EMTs. Relevant Contacts: 1. Beverly Peace

  3. MOVING CONTACT LINES IN THE CAHN-HILLIARD PIERRE SEPPECHER

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the flow in the immediate vicinity of the contact line shows the connection between the static contact, the shape of the interface of a drop lying on a smooth horizontal surface depends on gravity and surface, they are responsible for the rising of a fluid in a capillary tube. When the interface is moving with respect

  4. Contact Information: Sophia Radlowski, Assistant to the Director for Budgeting

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    Contact Information: Sophia Radlowski, Assistant to the Director for Budgeting Contact regarding will be mailed to you by Sophia Radlowski. 1. Read the offer letter carefully. If you agree to the terms, please form, original drug-free workplace statement, and copy of IDs listed above to: Sophia Radlowski UIC

  5. EVALUATION OF COMPLEMENTARITY TECHNIQUES FOR MINIMAL COORDINATE CONTACT DYNAMICS

    E-Print Network [OSTI]

    -Marquardt Algorithm PLM Projected Levenberg-Marquardt Algorithm MLCP-FB-RLM Contact dynamics solver, where the dynam function, and solved with the help of the RLM algorithm MLCP-FB-PLM Similar to the MLCP-FB-RLM solver ex- cept that the PLM algorithm is used to tackle the optimization problem MLCP-PATH Contact dynamics

  6. Neutron irradiation effects on metal-gallium nitride contacts

    SciTech Connect (OSTI)

    Katz, Evan J.; Lin, Chung-Han; Zhang, Zhichun [Department of Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio 43210 (United States); Qiu, Jie; Cao, Lei [Nuclear Engineering Program, Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, Ohio 43210 (United States); Mishra, Umesh K. [Departments of Electrical and Computer Engineering and Materials Science and Engineering University of California, Santa Barbara, California 93106 (United States); Brillson, Leonard J., E-mail: brillson.1@osu.edu [Department of Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio 43210 (United States); Department of Physics and Center for Materials Research, The Ohio State University, Columbus, Ohio 43210 (United States)

    2014-03-28T23:59:59.000Z

    We have measured the effect of fast and thermal neutrons on GaN Schottky barriers and ohmic contacts using current–voltage and transmission line method electrical techniques, optical, atomic force and scanning electron microscopy morphological techniques, and X-ray photoemission spectroscopy chemical techniques. These studies reveal a 10{sup 15}?n/cm{sup 2} neutron threshold for Schottky barrier ideality factor increases, a 10{sup 15}?n/cm{sup 2} fast plus thermal neutron threshold for ohmic contact sheet and contact resistance increases, and 10{sup 16}?n/cm{sup 2} neutron fluence threshold for major device degradation identified with thermally driven diffusion of Ga and N into the metal contacts and surface phase changes. These results demonstrate the need for protecting metal-GaN contacts in device applications subject to neutron radiation.

  7. Generalized nuclear contacts and the nucleon's momentum distributions

    E-Print Network [OSTI]

    Weiss, Ronen; Barnea, Nir

    2015-01-01T23:59:59.000Z

    The general nuclear contact matrices are defined, taking into consideration all partial waves and finite-range interactions, extending Tan's work for the zero range model. The properties of these matrices are discussed and the relations between the contacts and the one-nucleon and two-nucleon momentum distributions are derived. Using these relations, a new asymptotic connection between the one-nucleon and two-nucleon momentum distributions, describing the two-body short-range correlations in nuclei, is obtained. Using available numerical data, we extract few connections between the different contacts and verify their relations to the momentum distributions. The numerical data also allows us to identify the main nucleon momentum range affected by two-body short-range correlations. Utilizing these relations and the numerical data, we also verify a previous independent prediction connecting between the Levinger constant and the contacts. This work provides an important indication for the relevance of the contact...

  8. Dynamics of social contagions with limited contact capacity

    E-Print Network [OSTI]

    Wang, Wei; Zhu, Yu-Xiao; Tang, Ming; Zhang, Yi-Cheng

    2015-01-01T23:59:59.000Z

    Individuals are always limited by some inelastic resources, such as time and energy, which restrict them to dedicate to social interaction and limit their contact capacity. Contact capacity plays an important role in dynamics of social contagions, which so far has eluded theoretical analysis. In this paper, we first propose a non-Markovian model to understand the effects of contact capacity on social contagions, in which each individual can only contact and transmit the information to a finite number of neighbors. We then develop a heterogeneous edge-based compartmental theory for this model, and a remarkable agreement with simulations is obtained. Through theory and simulations, we find that enlarging the contact capacity makes the network more fragile to behavior spreading. Interestingly, we find that both the continuous and discontinuous dependence of the final adoption size on the information transmission probability can arise. And there is a crossover phenomenon between the two types of dependence. More ...

  9. Method and apparatus for high-efficiency direct contact condensation

    DOE Patents [OSTI]

    Bharathan, D.; Parent, Y.; Hassani, A.V.

    1999-07-20T23:59:59.000Z

    A direct contact condenser having a downward vapor flow chamber and an upward vapor flow chamber, wherein each of the vapor flow chambers includes a plurality of cooling liquid supplying pipes and a vapor-liquid contact medium disposed thereunder to facilitate contact and direct heat exchange between the vapor and cooling liquid. The contact medium includes a plurality of sheets arranged to form vertical interleaved channels or passageways for the vapor and cooling liquid streams. The upward vapor flow chamber also includes a second set of cooling liquid supplying pipes disposed beneath the vapor-liquid contact medium which operate intermittently in response to a pressure differential within the upward vapor flow chamber. The condenser further includes separate wells for collecting condensate and cooling liquid from each of the vapor flow chambers. In alternate embodiments, the condenser includes a cross-current flow chamber and an upward flow chamber, a plurality of upward flow chambers, or a single upward flow chamber. The method of use of the direct contact condenser of this invention includes passing a vapor stream sequentially through the downward and upward vapor flow chambers, where the vapor is condensed as a result of heat exchange with the cooling liquid in the contact medium. The concentration of noncondensable gases in the resulting condensate-liquid mixtures can be minimized by controlling the partial pressure of the vapor, which depends in part upon the geometry of the vapor-liquid contact medium. In another aspect of this invention, the physical and chemical performance of a direct contact condenser can be predicted based on the vapor and coolant compositions, the condensation conditions, and the geometric properties of the contact medium. 39 figs.

  10. ARM - AMF Deployment, Los Angeles, California, to Honolulu, Hawaii

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

    Home Deployment Operations Baseline Instruments and Data Plots at the Archive Science Plan (PDF, 1.7MB) Horizon Spirit: Tracking the Transit Experiment Planning MAGIC Full...

  11. Method of forming contacts for a back-contact solar cell

    DOE Patents [OSTI]

    Manning, Jane

    2014-07-15T23:59:59.000Z

    Methods of forming contacts for solar cells are described. In one embodiment, a method includes forming a silicon layer above a substrate, forming and patterning a solid-state p-type dopant source on the silicon layer, forming an n-type dopant source layer over exposed regions of the silicon layer and over a plurality of regions of the solid-state p-type dopant source, and heating the substrate to provide a plurality of n-type doped silicon regions among a plurality of p-type doped silicon regions.

  12. Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre

    E-Print Network [OSTI]

    Sheperd Doeleman; Jonathan Weintroub; Alan E. E. Rogers; Richard Plambeck; Robert Freund; Remo P. J. Tilanus; Per Friberg; Lucy M. Ziurys; James M. Moran; Brian Corey; Ken H. Young; Daniel L. Smythe; Michael Titus; Daniel P. Marrone; Roger J. Cappallo; Douglas C. J. Bock; Geoffrey C. Bower; Richard Chamberlin; Gary R. Davis; Thomas P. Krichbaum; James Lamb; Holly Maness; Arthur E. Niell; Alan Roy; Peter Strittmatter; Daniel Werthimer; Alan R. Whitney; David Woody

    2008-09-15T23:59:59.000Z

    The cores of most galaxies are thought to harbour supermassive black holes, which power galactic nuclei by converting the gravitational energy of accreting matter into radiation (ref 1). Sagittarius A*, the compact source of radio, infrared and X-ray emission at the centre of the Milky Way, is the closest example of this phenomenon, with an estimated black hole mass that is 4 million times that of the Sun (refs. 2,3). A long-standing astronomical goal is to resolve structures in the innermost accretion flow surrounding Sgr A* where strong gravitational fields will distort the appearance of radiation emitted near the black hole. Radio observations at wavelengths of 3.5 mm and 7 mm have detected intrinsic structure in Sgr A*, but the spatial resolution of observations at these wavelengths is limited by interstellar scattering (refs. 4-7). Here we report observations at a wavelength of 1.3 mm that set a size of 37 (+16, -10; 3-sigma) microarcseconds on the intrinsic diameter of Sgr A*. This is less than the expected apparent size of the event horizon of the presumed black hole, suggesting that the bulk of SgrA* emission may not be not centred on the black hole, but arises in the surrounding accretion flow.

  13. DETECTION OF THE COSMIC {gamma}-RAY HORIZON FROM MULTIWAVELENGTH OBSERVATIONS OF BLAZARS

    SciTech Connect (OSTI)

    Dominguez, A.; Siana, B. [Department of Physics and Astronomy, University of California, Riverside, CA 92521 (United States); Finke, J. D. [U.S. Naval Research Laboratory, Space Science Division, Code 7653, 4555 Overlook Avenue SW, Washington, DC 20375 (United States); Prada, F. [Campus of International Excellence UAM-CSIC, Cantoblanco, E-28049 Madrid (Spain); Primack, J. R. [Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Kitaura, F. S. [Leibniz-Institut fuer Astrophysik (AIP), An der Sternwarte 16, D-14482 Potsdam (Germany); Paneque, D., E-mail: albertod@ucr.edu [Kavli Institute for Particle Astrophysics and Cosmology, SLAC, Stanford University, Stanford, CA 94305 (United States)

    2013-06-10T23:59:59.000Z

    The first statistically significant detection of the cosmic {gamma}-ray horizon (CGRH) that is independent of any extragalactic background light (EBL) model is presented. The CGRH is a fundamental quantity in cosmology. It gives an estimate of the opacity of the universe to very high energy (VHE) {gamma}-ray photons due to photon-photon pair production with the EBL. The only estimations of the CGRH to date are predictions from EBL models and lower limits from {gamma}-ray observations of cosmological blazars and {gamma}-ray bursts. Here, we present homogeneous synchrotron/synchrotron self-Compton (SSC) models of the spectral energy distributions of 15 blazars based on (almost) simultaneous observations from radio up to the highest energy {gamma}-rays taken with the Fermi satellite. These synchrotron/SSC models predict the unattenuated VHE fluxes, which are compared with the observations by imaging atmospheric Cherenkov telescopes. This comparison provides an estimate of the optical depth of the EBL, which allows us a derivation of the CGRH through a maximum likelihood analysis that is EBL-model independent. We find that the observed CGRH is compatible with the current knowledge of the EBL.

  14. Detection of the Cosmic ?-Ray Horizon From Multiwavelength Observations of Blazars

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

    Dominguez, A.; Finke, J. D.; Prada, F.; Primack, J. R.; Kitaura, F. S.; Siana, B.; Paneque, D.

    2013-05-24T23:59:59.000Z

    The first statistically significant detection of the cosmic ?-ray horizon (CGRH) that is independent of any extragalactic background light (EBL) model is presented. The CGRH is a fundamental quantity in cosmology. It gives an estimate of the opacity of the Universe to very high energy (VHE) ?-ray photons due to photon-photon pair production with the EBL. The only estimations of the CGRH to date are predictions from EBL models and lower limits from ?-ray observations of cosmological blazars and ?-ray bursts. Here, we present homogeneous synchrotron/synchrotron self-Compton (SSC) models of the spectral energy distributions of 15 blazars based on (almost) simultaneous observations from radio up to the highest energy ?-rays taken with the Fermi satellite. These synchrotron/SSC models predict the unattenuated VHE fluxes, which are compared with the observations by imaging atmospheric Cherenkov telescopes. This comparison provides an estimate of the optical depth of the EBL, which allows a derivation of the CGRH through a maximum likelihood analysis that is EBL-model independent. We find that the observed CGRH is compatible with the current knowledge of the EBL.

  15. X-RAY TRANSIENTS IN THE ADVANCED LIGO/VIRGO HORIZON

    SciTech Connect (OSTI)

    Kanner, Jonah [LIGO-California Institute of Technology, Pasadena, CA 91125 (United States); Baker, John; Blackburn, Lindy; Camp, Jordan [NASA Goddard Space Flight Center, Mail Code 663, Greenbelt, MD 20771 (United States); Mooley, Kunal [California Institute of Technology, Astronomy Department, Mail Code 249-17, Pasadena, CA 91125 (United States); Mushotzky, Richard; Ptak, Andy, E-mail: jonah.kanner@ligo.org [NASA Goddard Space Flight Center, Mail Code 661, Greenbelt, MD 20771 (United States)

    2013-09-01T23:59:59.000Z

    Advanced LIGO and Advanced Virgo will be all-sky monitors for merging compact objects within a few hundred megaparsecs. Finding the electromagnetic counterparts to these events will require an understanding of the transient sky at low redshift (z < 0.1). We performed a systematic search for extragalactic, low redshift, transient events in the XMM-Newton Slew Survey. In a flux limited sample, we found that highly variable objects comprised 10% of the sample, and that of these, 10% were spatially coincident with cataloged optical galaxies. This led to 4 Multiplication-Sign 10{sup -4} transients per square degree above a flux threshold of 3 Multiplication-Sign 10{sup -12} erg cm{sup -2} s{sup -1} (0.2-2 keV) which might be confused with LIGO/Virgo counterparts. This represents the first extragalactic measurement of the soft X-ray transient rate within the Advanced LIGO/Virgo horizon. Our search revealed six objects that were spatially coincident with previously cataloged galaxies, lacked evidence for optical active galactic nuclei, displayed high luminosities {approx}10{sup 43} erg s{sup -1}, and varied in flux by more than a factor of 10 when compared with the ROSAT All-Sky Survey. At least four of these displayed properties consistent with previously observed tidal disruption events.

  16. Clustering of quintessence on horizon scales and its imprint on HI intensity mapping

    SciTech Connect (OSTI)

    Duniya, Didam G.A.; Bertacca, Daniele; Maartens, Roy, E-mail: adamsgwazah@gmail.com, E-mail: daniele.bertacca@gmail.com, E-mail: roy.maartens@gmail.com [Physics Department, University of the Western Cape, Cape Town 7535 (South Africa)

    2013-10-01T23:59:59.000Z

    Quintessence can cluster only on horizon scales. What is the effect on the observed matter distribution? To answer this, we need a relativistic approach that goes beyond the standard Newtonian calculation and deals properly with large scales. Such an approach has recently been developed for the case when dark energy is vacuum energy, which does not cluster at all. We extend this relativistic analysis to deal with dynamical dark energy. Using three quintessence potentials as examples, we compute the angular power spectrum for the case of an HI intensity map survey. Compared to the concordance model with the same small-scale power at z = 0, quintessence boosts the angular power by up to ? 15% at high redshifts, while power in the two models converges at low redshifts. The difference is mainly due to the background evolution, driven mostly by the normalization of the power spectrum today. The dark energy perturbations make only a small contribution on the largest scales, and a negligible contribution on smaller scales. Ironically, the dark energy perturbations remove the false boost of large-scale power that arises if we impose the (unphysical) assumption that the dark energy is smooth.

  17. Generalized second law of thermodynamics on the apparent horizon in modified Gauss-Bonnet gravity

    E-Print Network [OSTI]

    Abdolmaleki, A

    2015-01-01T23:59:59.000Z

    Modified gravity and generalized second law (GSL) of thermodynamics are interesting topics in the modern cosmology. In this regard, we investigate the GSL of gravitational thermodynamics in the framework of modified Gauss-Bonnet gravity or f(G)-gravity. We consider a spatially FRW universe filled with the matter and radiation enclosed by the dynamical apparent horizon with the Hawking temperature. For two viable f(G) models, we first numerically solve the set of differential equations governing the dynamics of f(G)-gravity. Then, we obtain the evolutions of the Hubble parameter, the Gauss-Bonnet curvature invariant term, the density and equation of state parameters as well as the deceleration parameter. In addition, we check the energy conditions for both models and finally examine the validity of the GSL. For the selected f(G) models, we conclude that both models have a stable de Sitter attractor. The equation of state parameters behave quite similar to those of the LCDM model in the radiation/matter dominat...

  18. P r o f i t P l u s P l a n e t . c o mP r o f i t P l u s P l a n e t . c o m Marriott International's "Spirit to Preserve"

    E-Print Network [OSTI]

    Loudon, Catherine

    4/4/2011 1 P r o f i t P l u s P l a n e t . c o mP r o f i t P l u s P l a n e t . c o m Marriott International's "Spirit to Preserve" Kathleen Matthews, EVP Global Communications & Public Affairs P r o f i t P l u s P l a n e t . c o m Marriott's "Spirit To Preserve" Vision Marriott aspires to be the global

  19. A problem of hypothetical emerging of cosmic background radiation photons on horizon in the standard model of universe

    E-Print Network [OSTI]

    V. Skalsky

    2000-09-25T23:59:59.000Z

    The present temperature of cosmic background radiation and the present number density of photons of cosmic background radiation in the observed expansive and isotropic relativistic Universe is in the standard model of universe explained by the assumption of emergence of the photons of cosmic background radiation on the horizon (of the most remote visibility). However, the physical analysis shows unambiguously that this assumption contradicts the special theory of relativity and the quantum mechanics.

  20. Flexural unfolding of horizons using paleomagnetic vectors M.J. Ramn a,b,*, Emilio L. Pueyo a

    E-Print Network [OSTI]

    Zaragoza, Universidad de

    Flexural unfolding of horizons using paleomagnetic vectors M.J. Ramón a,b,*, Emilio L. Pueyo a , José Luis Briz c,d , Andrés Pocoví b , José Carlos Ciria c a Instituto Geológico y Minero de España (IGME), Unidad de Zaragoza, Zaragoza, Spain b Departamento de Ciencias de la Tierra, University

  1. Mechanical contact by constraints and split-based preconditioning

    SciTech Connect (OSTI)

    Dmitry Karpeyev; Derek Gaston; Jason Hales; Steven Novascone

    2014-03-01T23:59:59.000Z

    An accurate implementation of glued mechanical contact was developed in MOOSE based on its Constraint system. This approach results in a superior convergence of elastic structure problems, in particular in BISON. Adaptation of this technique to frictionless and frictional contact models is under way. Additionally, the improved convergence of elastic problems results from the application of the split-based preconditioners to constraint-based systems. This yields a substantial increase in the robustness of elastic solvers when the number of nodes in contact is increased and/or the mesh is refined.

  2. Contact Lee McGetrick Director, Carbon Fiber Technology Facility

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

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

  3. Contact Manufacturing Demonstration Facility Craig Blue, Ph.D.

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

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

  4. Contact | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us Contact UsContact Community

  5. Contact | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution And Bylaws |Contact Us Contact UsContact

  6. Contact information | Center for Bio-Inspired Solar Fuel Production

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSite MapContact Us Contact UsContact

  7. Monitoring and Reporting Services for the Toronto Library, Final Report, TESCOR Energy Services, through Energy Systems Associates and New Horizons Technology

    E-Print Network [OSTI]

    Haberl, J. S.; Athar, A.; Claridge, D. E.

    1998-01-01T23:59:59.000Z

    This report summarizes the work performed for TESCOR Energy Services through Energy Systems Associates and New Horizons Technology. This work includes the monitoring and analysis of data from the data logger that was installed in the Toronto Library...

  8. Deep-Diving Cetaceans of the Gulf of Mexico : : Acoustic Ecology and Response to Natural and Anthropogenic Forces Including the Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    Merkens, Karlina Paul

    2013-01-01T23:59:59.000Z

    2.4.1 Seasonal and Oil-spill related trends . . 2.4.2 Diel1.4 The Deepwater Horizon Oil Spill . . . . 1.5 DataOil Figure Figure Figure Figure Figure Figure Figure Figure

  9. A multi-scale iterative approach for finite element modeling of thermal contact resistance

    E-Print Network [OSTI]

    Thompson, Mary Kathryn, 1980-

    2007-01-01T23:59:59.000Z

    Surface topography has long been considered a key factor in the performance of many contact applications including thermal contact resistance. However, essentially all analytical and numerical models of thermal contact ...

  10. Degradation of Iris Recognition Performance Due to Non-Cosmetic Prescription Contact Lenses

    E-Print Network [OSTI]

    Bowyer, Kevin W.

    stated as: "Subjects can generally be recognized through eyeglasses or contact lenses. Colored contact with the recognition technology" [5] and "Successful identification can be made through eyeglasses and contact lenses

  11. Hearing Material 1 Perception of Material from Contact Sounds

    E-Print Network [OSTI]

    Pai, Dinesh

    of simulated enviroments. This circumstance is unfortunate, when one considers that sounds provide important, the force of impact, and the location of contact relative to object geometry. In this paper we concentrate

  12. Oak Ridge Site Specific Advisory Board Contacts | Department...

    Office of Environmental Management (EM)

    Advisory Board Contacts Mailing Address Oak Ridge Site Specific Advisory Board P.O. Box 2001, EM-91 Oak Ridge, TN 37831 Phone Numbers (865) 241-4583, (865) 241-4584 (800) 382-6938,...

  13. Measurement of normal contact stiffness of fractal rough surfaces

    E-Print Network [OSTI]

    Chongpu Zhai; Sébastien Bevand; Yixiang Gan; Dorian Hanaor; Gwénaëlle Proust; Bruno Guelorget; Delphine Retraint

    2014-09-03T23:59:59.000Z

    We investigate the effects of roughness and fractality on the normal contact stiffness of rough surfaces. Samples of isotropically roughened aluminium surfaces are considered. The roughness and fractal dimension were altered through blasting using different sized particles. Subsequently, surface mechanical attrition treatment (SMAT) was applied to the surfaces in order to modify the surface at the microscale. The surface topology was characterised by interferometry based profilometry. The normal contact stiffness was measured through nanoindentation with a flat tip utilising the partial unloading method. We focus on establishing the relationships between surface stiffness and roughness, combined with the effects of fractal dimension. The experimental results, for a wide range of surfaces, showed that the measured contact stiffness depended very closely on surfaces' root mean squared (RMS) slope and their fractal dimension, with correlation coefficients of around 90\\%, whilst a relatively weak correlation coefficient of 57\\% was found between the contact stiffness and RMS roughness.

  14. Au-free Ohmic Contacts to Gallium Nitride and Graphene 

    E-Print Network [OSTI]

    Ravikirthi, Pradhyumna

    2014-08-10T23:59:59.000Z

    This work deals with Au-free contact metallization schemes for gallium nitride (GaN) and graphene semiconductors. Graphene and gallium nitride are promising materials that can potentially be integrated together in the near future for high frequency...

  15. Au-free Ohmic Contacts to Gallium Nitride and Graphene

    E-Print Network [OSTI]

    Ravikirthi, Pradhyumna

    2014-08-10T23:59:59.000Z

    This work deals with Au-free contact metallization schemes for gallium nitride (GaN) and graphene semiconductors. Graphene and gallium nitride are promising materials that can potentially be integrated together in the near future for high frequency...

  16. 2014 EMPLOYEE BENEFIT INSURANCE PLAN CONTACTS Health Insurance

    E-Print Network [OSTI]

    2014 EMPLOYEE BENEFIT INSURANCE PLAN CONTACTS Health Insurance Anthem Blue Cross and Blue Shield www.anthem.com Ù BlueAdvantage Point of Service Plan (HMO/POS) Ù PRIME Health Plan (PPO) and Custom Plus Health Plan Phone

  17. Section 1: Contact Information Section 2: Employment History

    E-Print Network [OSTI]

    Section 1: Contact Information Section 2: Employment History Section 3: Educational History Section 4: Additional Required Information Employment Application The Ernest Orlando Lawrence Berkeley National Laboratory is an equal opportunity employer committed to the development of a diverse workforce

  18. Extrapolating Sparse Large-Scale GPS Traces for Contact Evaluation

    E-Print Network [OSTI]

    Ott, Jörg

    , such as access points and cell towers, and occasionally also their geo- graphic location. However, given the larger transmission ranges of network elements, whether a short-range contact could take place can only

  19. CONTACT LIST FOR THE DEPARTMENT OF FORESTRY AND NATURAL RESOURCES

    E-Print Network [OSTI]

    Bolding, M. Chad

    01/09 CONTACT LIST FOR THE DEPARTMENT OF FORESTRY AND NATURAL RESOURCES CAFLS DEAN ALAN SAM Corey Heaton Forestry & Nat. Res./Ag/Hort Chester/Lancaster/York 803-385-2556 x112 heaton2 Howard Hiller

  20. Local contact stress measurements at a rough interface

    E-Print Network [OSTI]

    J. Scheibert; A. Prevost; J. Frelat; P. Rey; G. Debrégeas

    2007-11-07T23:59:59.000Z

    An original MEMS-based force sensing device is designed which allows to measure spatially resolved normal and tangential stress fields at the base of an elastomeric film. This device is used for the study of the contact stress between a rough film and a smooth glass sphere under normal load. The measured profiles are compared to Finite Elements Method calculations for a smooth contact with boundary conditions obeying Amontons-Coulomb's friction law. The accuracy of the measurements allows to discriminate between dry and lubricated contact conditions and to evidence load-dependent deviations from Amontons-Coulomb's profiles. These deviations are qualitatively interpreted by taking into account the finite compliance of the micro-contact population.