National Library of Energy BETA

Sample records for disruptions interactive maps

  1. SERC Grants Interactive Map

    Broader source: Energy.gov [DOE]

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

  2. Digital Soil Mapping: Interactions with

    E-Print Network [OSTI]

    Grunwald, Sabine

    Chapter 21 Digital Soil Mapping: Interactions with and Applications for Hydropedology J.A. Thompson,1, * S. Roecker,2 S. Grunwald3 and P.R. Owens4 ABSTRACT Spatial information on soils, particularly hydrologic and hydromorphic soil properties, is used to understand and assess soil water retention, flooding

  3. Exploring Key Orientations of Small Molecules to Disrupt Protein-protein Interactions 

    E-Print Network [OSTI]

    Ko, Eunhwa

    2012-07-16

    Protein-protein interactions (PPIs) are attractive targets because of their therapeutic potential. One approach to design small molecules that can disrupt the PPIs is to use structural information of proteins. With this ...

  4. 3D interactive pictorial maps 

    E-Print Network [OSTI]

    Naz, Asma

    2005-02-17

    will be used for data representation. I created the map of the United States of America and Europe. I displayed and compared the population density, and political stature of the states or countries by changing the color or heights of the 3D models of different... of height of models. The shades or patterns that represent each data must be clearly identifiable, not only on the legend, where the category boxes are ordered, but also on the map, where there is no predetermined order. If the shades are too similar...

  5. Mediating disruption in human-computer interaction from implicit metrics of attention

    E-Print Network [OSTI]

    Arroyo Acosta, Ernesto, 1978-

    2007-01-01

    Multitasking environments cause people to be interrupted constantly, often disrupting their ongoing activities and impeding reaching their goals. This thesis presents a disruption reducing approach designed to support the ...

  6. Layer Information for Interactive State Maps

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural GasEIARegional energy challenges inValues5Maps

  7. Interactive Maps from the Great Basin Center for Geothermal Energy

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

    The Great Basin Center for Geothermal Energy, part of the University of Nevada, Reno, conducts research towards the establishment of geothermal energy as an economically viable energy source within the Great Basin. The Center specializes in collecting and synthesizing geologic, geochemical, geodetic, geophysical, and tectonic data, and using Geographic Information System (GIS) technology to view and analyze this data and to produce favorability maps of geothermal potential. The interactive maps are built with layers of spatial data that are also available as direct file downloads (see DDE00299). The maps allow analysis of these many layers, with various data sets turned on or off, for determining potential areas that would be favorable for geothermal drilling or other activity. They provide information on current exploration projects and leases, Bureau of Land Management land status, and map presentation of each type of scientific spatial data: geothermal, geophysical, geologic, geodetic, groundwater, and geochemical.

  8. Interactive Map Shows Geothermal Resources | 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 RankADVANCED MANUFACTURING OFFICE INDUSTRIAL TECHNICAL8-02Department ofInversionsInteractive Map Shows

  9. Energy Efficiency for Large-Scale MapReduce Workloads with Significant Interactive Analysis

    E-Print Network [OSTI]

    California at Irvine, University of

    Energy Efficiency for Large-Scale MapReduce Workloads with Significant Interactive Analysis Yanpei make energy efficiency a critical concern. Prior works on MapReduce energy efficiency have not yet con to achieve for MIA workloads. These concerns lead us to develop BEEMR (Berkeley Energy Efficient Map

  10. Chaotic scattering in solitary wave interactions: A singular iterated-map description

    E-Print Network [OSTI]

    Roy H. Goodman

    2007-10-17

    We derive a family of singular iterated maps--closely related to Poincare maps--that describe chaotic interactions between colliding solitary waves. The chaotic behavior of such solitary wave collisions depends on the transfer of energy to a secondary mode of oscillation, often an internal mode of the pulse. Unlike previous analyses, this map allows one to understand the interactions in the case when this mode is excited prior to the first collision. The map is derived using Melnikov integrals and matched asymptotic expansions and generalizes a ``multi-pulse'' Melnikov integral and allows one to find not only multipulse heteroclinic orbits, but exotic periodic orbits. The family of maps derived exhibits singular behavior, including regions of infinite winding. This problem is shown to be a singular version of the conservative Ikeda map from laser physics and connections are made with problems from celestial mechanics and fluid mechanics.

  11. NATCARB Interactive Maps and the National Carbon Explorer: a National Look at Carbon Sequestration

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

    NATCARB is a national look at carbon sequestration. The NATCARB home page, National Carbon Explorer (http://www.natcarb.org/) provides access to information and interactive maps on a national scale about climate change, DOE's carbon sequestration program and its partnerships, CO2 emissions, and sinks. This portal provides access to interactive maps based on the Carbon Sequestration Atlas of the United States and Canada.

  12. 3D MAPPING FOR MOBILE ROBOTS USING INTERACTIVE VIRTUAL WORLDS AND INTERNET TELEOPERATION

    E-Print Network [OSTI]

    Minguez, Javier

    3D MAPPING FOR MOBILE ROBOTS USING INTERACTIVE VIRTUAL WORLDS AND INTERNET TELEOPERATION J. M N° 2508, San Pedro Zacatenco, Mexico D.F., MEXICO jibarra@ctrl.cinvestav.mx ** Robotics and Real, is actualized on line with 3D models of the objects present in the real workplace. Internet interaction between

  13. High Resolution Mapping of Enhancer-Promoter Interactions

    E-Print Network [OSTI]

    Reeder, Christopher

    RNA Polymerase II ChIA-PET data has revealed enhancers that are active in a profiled cell type and the genes that the enhancers regulate through chromatin interactions. The most commonly used computational method for ...

  14. Global map of physical interactions among differentially expressed genes in multiple

    E-Print Network [OSTI]

    Tuller, Tamir

    Global map of physical interactions among differentially expressed genes in multiple sclerosis, Israel and 3 Multiple Sclerosis Center, Sheba Medical Center, Tel Hashomer, Israel Received April 12, 2011; Revised and Accepted June 10, 2011 Multiple sclerosis (MS) is a central nervous system autoimmune

  15. RE Atlas: The U.S. Atlas of Renewable Resources (Interactive Map, GIS Data)

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

    This interactive data map allows a user to explore the locations across the U.S. of many different basic, renewable energy resources. The many layers can be activated one at a time or in multiple combinations and the GIS display draws from a rich combination of data collections.

  16. Big Data Storytelling through Interactive Maps Jayant Madhavan, Sreeram Balakrishnan, Kathryn Brisbin, Hector Gonzalez, Nitin Gupta,

    E-Print Network [OSTI]

    Cortes, Corinna

    Big Data Storytelling through Interactive Maps Jayant Madhavan, Sreeram Balakrishnan, Kathryn) brings big data collaboration and visualization to data-experts who possess neither large data high-profile stories. 1 Introduction Much of the current excitement about Big Data refers to performing

  17. Analytical results for coupled map lattices with long-range interactions

    E-Print Network [OSTI]

    C. Anteneodo; S. E. de S. Pinto; A. M. Batista; R. L. Viana

    2004-01-22

    We obtain exact analytical results for lattices of maps with couplings that decay with distance as $r^{-\\alpha}$. We analyze the effect of the coupling range on the system dynamics through the Lyapunov spectrum. For lattices whose elements are piecewise linear maps, we get an algebraic expression for the Lyapunov spectrum. When the local dynamics is given by a nonlinear map, the Lyapunov spectrum for a completely synchronized state is analytically obtained. The critical lines characterizing the synchronization transition are determined from the expression for the largest transversal Lyapunov exponent. In particular, it is shown that in the thermodynamical limit, such transition is only possible for sufficiently long-range interactions, namely, for $\\alpha\\le alpha_c

  18. Technology disrupted

    SciTech Connect (OSTI)

    Papatheodorou, Y.

    2007-02-15

    Three years ago, the author presented a report on power generation technologies which in summary said 'no technology available today has the potential of becoming transformational or disruptive in the next five to ten years'. In 2006 the company completed another strategic view research report covering the electric power, oil, gas and unconventional energy industries and manufacturing industry. This article summarises the strategic view findings and then revisits some of the scenarios presented in 2003. The cost per megawatt-hour of the alternatives is given for plants ordered in 2005 and then in 2025. The issue of greenhouse gas regulation is dealt with through carbon sequestration and carbon allowances or an equivalent carbon tax. Results reveal substantial variability through nuclear power, hydro, wind, geothermal and biomass remain competitive through every scenario. Greenhouse gas scenario analysis shows coal still be viable, albeit less competitive against nuclear and renewable technologies. A carbon tax or allowance at $24 per metric ton has the same effect on IGCC cost as a sequestration mandate. However, the latter would hurt gas plants much more than a tax or allowance. Sequestering CO{sub 2} from a gas plant is almost as costly per megawatt-hour as for coal. 5 refs., 5 figs., 5 tabs.

  19. Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat PumpsTechnologiesTechnologiesScience & InnovationMaps

  20. MAP

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion to localPartnership willLynn Rippe2D,MANTISSA DayMAP

  1. Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport)PriceHistoricEnergy EfficiencyMaps Sign In About |

  2. Carbon Sequestration Atlas and Interactive Maps from the Southwest Regional Partnership on Carbon Sequestration

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

    McPherson, Brian

    In November of 2002, DOE announced a global climate change initiative involving joint government-industry partnerships working together to find sensible, low cost solutions for reducing GHG emissions. As a result, seven regional partnerships were formed; the Southwest Regional Partnership on Carbon Sequestration (SWP) is one of those. These groups are utilizing their expertise to assess sequestration technologies to capture carbon emissions, identify and evaluate appropriate storage locations, and engage a variety of stakeholders in order to increase awareness of carbon sequestration. Stakeholders in this project are made up of private industry, NGOs, the general public, and government entities. There are a total of 44 current organizations represented in the partnership including electric utilities, oil and gas companies, state governments, universities, NGOs, and tribal nations. The SWP is coordinated by New Mexico Tech and encompasses New Mexico, Arizona, Colorado, Oklahoma, Utah, and portions of Kansas, Nevada, Texas, and Wyoming. Field test sites for the region are located in New Mexico (San Juan Basin), Utah (Paradox Basin), and Texas (Permian Basin).[Taken from the SWP C02 Sequestration Atlas] The SWP makes available at this website their CO2 Sequestration Atlas and an interactive data map.

  3. Dissecting genotype-phenotype relationships through integration and analysis of differential genetic interaction maps

    E-Print Network [OSTI]

    2012-01-01

    Figure 3.5: A global map of DDR modules reveals a novel rolefor the study of the DDR and its associated diseases. Inthe DNA damage response (DDR), which senses DNA lesions and

  4. Optimizing interventions for the treatment of vascular flow disruptions

    E-Print Network [OSTI]

    Boval, Brett Lawrence

    2014-01-01

    All tissues rely on perfusion and therefore intact blood flow. When flow is disrupted the coupled interaction between the functional and fluid domains of a tissue is impeded and viability is lost. Aortic stenosis is a ...

  5. Top 5 Maps and Interactive Graphics of 2014 | 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:Financing ToolInternational Affairs,Department ofARPA-E Top 10 Things You Didn'tTop 5 Maps and

  6. Top 5 Maps and Interactive Graphics of 2014 | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OF APPLICABLEStatutory Authority J-I-12TiffanyEnergy Today:ofTop 11Top 5 Maps

  7. Disc formation from stellar tidal disruptions

    E-Print Network [OSTI]

    Bonnerot, Clément; Lodato, Giuseppe; Price, Daniel J

    2015-01-01

    The potential of tidal disruption of stars to probe otherwise quiescent supermassive black holes cannot be exploited, if their dynamics is not fully understood. So far, the observational appearance of these events has been commonly derived from analytical extrapolations of the debris dynamical properties just after the stellar disruption. In this paper, we perform hydrodynamical simulations of stars in highly eccentric orbits, that follow the stellar debris after disruption and investigate their ultimate fate. We demonstrate that gas debris circularize on an orbital timescale because relativistic apsidal precession causes the stream to self-cross. The higher the eccentricity and/or the deeper the encounter, the faster is the circularization. If the internal energy deposited by shocks during stream self-interaction is readily radiated, the gas forms a narrow ring at the circularization radius. It will then proceed to accrete viscously at a super-Eddington rate, puffing up under radiation pressure. If instead c...

  8. Development of a dynamic network monitoring tool – Interactive map based on LLDP and SNMP

    E-Print Network [OSTI]

    Haen, Christophe; Mesnard, E

    2010-01-01

    The European Organization for Nuclear Research (French: Organisation Européenne pour la Recherche Nucléaire), known as CERN is the world’s largest particle physics laboratory, established in 1954 near Geneva. CERN’s main function is to provide the particle accelerators and other infrastructure needed for high-energy physics research. The LHCb (standing for “Large Hadron Collider beauty”) experiment is one of six particle physics detector experiments built on the Large Hadron Collider, the world’s largest and highest-energy particle accelerator. This experiment produces a large amount of data which needs to be treated. This task is processed by some 2000 computing servers and 400 control servers. The LHCb Online team is responsible of the data, from their creation in the detector, till the storage. The purpose of my internship was to develop a software from scratch able to dynamically discover the network, draw a map of it, gather information of the network equipments, and implement basic monitorin...

  9. Disruptions, Disruptivity, and Safer Operating Windows in the...

    Office of Scientific and Technical Information (OSTI)

    of Publication: United States Language: English Subject: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY Disruptions, High-beta Plasmas,MHD Instability, Spherical Torus, Spherical...

  10. Disruptions, Disruptivity, and Safer Operating Windows in the...

    Office of Scientific and Technical Information (OSTI)

    in the high- N National Spherical Torus Experiment (NSTX) M. Ono, et al. Nuclear Fusion 40, 557 (2000). While the overall disruption rate is rather high, configurations with...

  11. TRANSFORMING AND DISRUPTING PERSONAL

    E-Print Network [OSTI]

    with populations exceeding 10 million Hypercities: Tokyo (38M), Delhi (25M), Shanghai (23M), Mexico City, Mumbai Integrated Sensing with Maps, GPS, V2X Driver State Knowledge #12;CADILLAC SUPER CRUISE =+ Sensor Fusion

  12. SpatioTemporal Interaction with Disease Mapping Dongchu Sun, Robert K. Tsutakawa, Hoon Kim and Zhuoqiong He

    E-Print Network [OSTI]

    West, Mike

    , and the variability of such rates over a state or country. They can also be used to detect spatial clusters which may these maps are often constructed with countries or states as basic units, the boundaries between such units can be epidemiologically arbitrary when the neighboring units are homogeneous. Mapping of crude rates

  13. Interactive Mapping on Virtual Terrain Models Tony Bernardin Eric Cowgill Ryan Gold Bernd Hamann Oliver Kreylos Alfred Schmitt

    E-Print Network [OSTI]

    Hamann, Bernd

    in the creation and interpretation of geologic/neotectonic maps at length scales of 10 m to 1000 km. Our system to measure the orientations of geologic surfaces and record their observations by drawing lines directly and displayed to facilitate understanding of the three-dimensional geometry of geologic surfaces. The main

  14. Mitigation of Flooding Disruption Attacks in Hierarchical OLSR Networks Gimer Cervera, Michel Barbeau, Joaquin Garcia-Alfaro and Evangelos Kranakis

    E-Print Network [OSTI]

    Kranakis, Evangelos

    Mitigation of Flooding Disruption Attacks in Hierarchical OLSR Networks Gimer Cervera, Michel (MPR) nodes as a flooding mechanism for distributing control information. Unlike OLSR, nodes affect the topol- ogy map acquisition process by interrupting the flooding of control information

  15. Homeowners: Respond to Natural Gas Disruptions | Department of...

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

    Natural Gas Disruptions Homeowners: Respond to Natural Gas Disruptions Homeowners: Respond to Natural Gas Disruptions Because natural gas is distributed through underground...

  16. Disruptive Innovation in Numerical Hydrodynamics

    SciTech Connect (OSTI)

    Waltz, Jacob I.

    2012-09-06

    We propose the research and development of a high-fidelity hydrodynamic algorithm for tetrahedral meshes that will lead to a disruptive innovation in the numerical modeling of Laboratory problems. Our proposed innovation has the potential to reduce turnaround time by orders of magnitude relative to Advanced Simulation and Computing (ASC) codes; reduce simulation setup costs by millions of dollars per year; and effectively leverage Graphics Processing Unit (GPU) and future Exascale computing hardware. If successful, this work will lead to a dramatic leap forward in the Laboratory's quest for a predictive simulation capability.

  17. Location Map

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

    Lane, Michael

    2013-06-27

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

  18. Location Map

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

    Lane, Michael

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

  19. RIMapperWMS: a Web Map Service providing SVG maps with a built-in client

    E-Print Network [OSTI]

    Köbben, Barend

    RIMapperWMS: a Web Map Service providing SVG maps with a built-in client Barend K Consortium's Web Map Service spec- ification. It serves interactive web maps from a spatial database back application that conforms to the Open Geospatial Con- sortium's (OGC) Web Map Service (WMS) specification. We

  20. System and method for disrupting suspect objects

    DOE Patents [OSTI]

    Gladwell, T. Scott; Garretson, Justin R; Hobart, Clinton G; Monda, Mark J

    2013-07-09

    A system and method for disrupting at least one component of a suspect object is provided. The system includes a source for passing radiation through the suspect object, a screen for receiving the radiation passing through the suspect object and generating at least one image therefrom, a weapon having a discharge deployable therefrom, and a targeting unit. The targeting unit displays the image(s) of the suspect object and aims the weapon at a disruption point on the displayed image such that the weapon may be positioned to deploy the discharge at the disruption point whereby the suspect object is disabled.

  1. Azadegan, A. 2013 SupplyChainDisruptions,

    E-Print Network [OSTI]

    Lin, Xiaodong

    semi-submersible exploratory offshore drilling rig Deepwater Horizon in the Gulf of Mexico. What Acceleration Recall #12;Azadegan, A. 2013 2010 Deepwater Horizon oil spill The disruption: Major oil spill from

  2. Bad prospects for the detection of giant stars' tidal disruption: effect of the ambient medium on bound debris

    E-Print Network [OSTI]

    Bonnerot, Clément; Lodato, Giuseppe

    2015-01-01

    Most massive galaxies are thought to contain a supermassive black holes in their centre surrounded by a tenuous gas environment, leading to no significant emission. In these quiescent galaxies, tidal disruption events represent a powerful detection method for the central black hole. Following the disruption, the stellar debris evolve into an elongated gas stream, which partly falls back towards the disruption site and accrete onto the black hole producing a luminous flare. Using an analytical treatment, we investigate the interaction between the debris stream and the gas environment of quiescent galaxies. Although we find dynamical effects to be negligible, we demonstrate that Kelvin-Helmholtz instability can lead to the dissolution of the stream into the ambient medium before it reaches the black hole, likely dimming the associated flare. Furthermore, we find this effect to be enhanced for disruptions involving more massive black holes and/or giant stars. Consequently, although disruptions of evolved stars h...

  3. The Effects of Concept Mapping and Questioning on Students’ Organization and Retention of Science Knowledge While Using Interactive Read-Alouds 

    E-Print Network [OSTI]

    Berry, Jaime Leigh

    2012-10-19

    students in learning science concepts. Little or no research has combined these methods to examine its effect on learning. The purpose of this study was to examine and compare concept mapping and questioning on students' organization and retention...

  4. An SNMP Gateway for Delay/Disruption Tolerant Network Management GREGORY L. CAMPBELL

    E-Print Network [OSTI]

    Kruse, Hans

    is tested by creating a sample terrestrial management system and by mimicking interaction with the DING protocol. The results prove that a push-based data collection method that populates a shared database canAn SNMP Gateway for Delay/Disruption Tolerant Network Management by GREGORY L. CAMPBELL Mc

  5. Atmospheric-pressure guided streamers for liposomal membrane disruption

    SciTech Connect (OSTI)

    Svarnas, P.; Aleiferis, Sp.; Matrali, S. H.; Gazeli, K.; Clement, F.; Antimisiaris, S. G.

    2012-12-24

    The potential to use liposomes (LIPs) as a cellular model in order to study interactions of cold atmospheric-pressure plasma with cells is herein investigated. Cold atmospheric-pressure plasma is formed by a dielectric-barrier discharge reactor. Large multilamellar vesicle liposomes, consisted of phosphatidylcholine and cholesterol, are prepared by the thin film hydration technique, to encapsulate a small hydrophilic dye, i.e., calcein. The plasma-induced release of calcein from liposomes is then used as a measure of liposome membrane integrity and, consequently, interaction between the cold atmospheric plasma and lipid bilayers. Physical mechanisms leading to membrane disruption are suggested, based on the plasma characterization including gas temperature calculation.

  6. Disruption mitigation using high pressure gas jets

    SciTech Connect (OSTI)

    Dennis G. Whyte

    2007-10-11

    The goal of this research is to establish credible disruption mitigation scenarios based on the technique of massive gas injection. Disruption mitigation seeks to minimize or eliminate damage to internal components that can occur due to the rapid dissipation of thermal and magnetic energy during a tokamak disruption. In particular, the focus of present research is extrapolating mitigation techniques to burning plasma experiments such as ITER, where disruption-caused damage poses a serious threat to the lifetime of internal vessel components. A majority of effort has focused on national and international collaborative research with large tokamaks: DIII-D, Alcator C-Mod, JET, and ASDEX Upgrade. The research was oriented towards empirical trials of gas-jet mitigation on several tokamaks, with the goal of developing and applying cohesive models to the data across devices. Disruption mitigation using gas jet injection has proven to be a viable candidate for avoiding or minimizing damage to internal components in burning plasma experiments like ITER. The physics understanding is progress towards a technological design for the required gas injection system in ITER.

  7. Tokamak plasma current disruption infrared control system

    DOE Patents [OSTI]

    Kugel, Henry W. (Somerset, NJ); Ulrickson, Michael (E. Windsor, NJ)

    1987-01-01

    In a magnetic plasma confinment device having an inner toroidal limiter mounted on an inner wall of a plasma containment vessel, an arrangement is provided for monitoring vertical temperature profiles of the limiter. The temperature profiles are taken at brief time intervals, in a time scan fashion. The time scans of the vertical temperature profile are continuously monitored to detect the presence of a peaked temperature excursion, which, according to the present invention, is a precursor of a subsequent major plasma disruption. A fast scan of the temperature profile is made so as to provide a time interval in real time prior to the major plasma disruption, such that corrective action can be taken to reduce the harmful effects of the plasma disruption.

  8. Disruptive event analysis: volcanism and igneous intrusion

    SciTech Connect (OSTI)

    Crowe, B.M.

    1980-08-01

    An evaluation is made of the disruptive effects of volcanic activity with respect to long term isolation of radioactive waste through deep geologic storage. Three major questions are considered. First, what is the range of disruption effects of a radioactive waste repository by volcanic activity. Second, is it possible, by selective siting of a repository, to reduce the risk of disruption by future volcanic activity. And third, can the probability of repository disruption by volcanic activity be quantified. The main variables involved in the evaluation of the consequences of repository disruption by volcanic activity are the geometry of the magma-repository intersection (partly controlled by depth of burial) and the nature of volcanism. Potential radionuclide dispersal by volcanic transport within the biosphere ranges in distance from several kilometers to global. Risk from the most catastrophic types of eruptions can be reduced by careful site selection to maximize lag time prior to the onset of activity. Certain areas or volcanic provinces within the western United States have been sites of significant volcanism and should be avoided as potential sites for a radioactive waste repository. Examples of projection of future sites of active volcanism are discussed for three areas of the western United States. Probability calculations require two types of data: a numerical rate or frequency of volcanic activity and a numerical evaluation of the areal extent of volcanic disruption for a designated region. The former is clearly beyond the current state of art in volcanology. The latter can be approximated with a reasonable degree of satisfaction. In this report, simplified probability calculations are attempted for areas of past volcanic activity.

  9. Disrupted Neural Synchronization in Toddlers with Autism

    E-Print Network [OSTI]

    Behrmann, Marlene

    Neuron Report Disrupted Neural Synchronization in Toddlers with Autism Ilan Dinstein,1,4,* KarenAutism Center of Excellence 2Department of Psychiatry 3Department of Neurosciences University 15213, USA *Correspondence: ilan.dinstein@weizmann.ac.il DOI 10.1016/j.neuron.2011.04.018 SUMMARY Autism

  10. Quantifying hazards: asteroid disruption in lunar distant retrograde orbits

    E-Print Network [OSTI]

    Roa, Javier

    2015-01-01

    The Asteroid Redirect Mission (ARM) proposes to retrieve a near-Earth asteroid and position it in a lunar distant retrograde orbit (DRO) for later study, crewed exploration, and ultimately resource exploitation. During the Caltech Space Challenge, a recent workshop to design a crewed mission to a captured asteroid in a DRO, it became apparent that the asteroid's low escape velocity (<1 cm s$^{-1}$) would permit the escape of asteroid particles during any meaningful interaction with astronauts or robotic probes. This Note finds that up to 5% of escaped asteroid fragments will cross Earth-geosynchronous orbits and estimates the risk to satellites from particle escapes or complete disruption of a loosely bound rubble pile.

  11. A Dark Year for Tidal Disruption Events

    E-Print Network [OSTI]

    Guillochon, James

    2015-01-01

    The disruption of a main-sequence star by a supermassive black hole results in the initial production of an extended debris stream that winds repeatedly around the black hole, producing a complex three-dimensional figure that may self-intersect. Both analytical work and simulations have shown that typical encounters generate streams that are extremely thin. In this paper we show that this implies that even small relativistic precessions attributed to black hole spin can induce deflections that prevent the stream from self-intersecting even after many windings. Additionally, hydrodynamical simulations have demonstrated that energy is deposited very slowly via hydrodynamic processes alone, resulting in the liberation of very little gravitational binding energy in the absence of stream-stream collisions. This naturally leads to a "dark period" in which the flare is not observable for some time, persisting for up to a dozen orbital periods of the most bound material, which translates to years for disruptions arou...

  12. Implications of Disruption to Natural Gas Deliverability

    SciTech Connect (OSTI)

    Science Applications International

    2008-09-30

    This project was sponsored by Department of Energy/Office of Electricity Delivery and Energy Reliability and managed by the National Energy Technology Laboratory. The primary purpose of the project was to analyze the capability of the natural gas production, transmission and supply systems to continue to provide service in the event of a major disruption in capacity of one or more natural gas transmission pipelines. The project was specifically designed to detail the ability of natural gas market to absorb facility losses and efficiently reallocate gas supplies during a significant pipeline capacity disruption in terms that allowed federal and state agencies and interests to develop effective policies and action plans to prioritize natural gas deliveries from a regional and national perspective. The analyses for each regional study were based on four primary considerations: (1) operating conditions (pipeline capacity, storage capacity, local production, power dispatch decision making and end user options); (2) weather; (3) magnitude and location of the disruption; and, (4) normal versus emergency situation. The detailed information contained in the region reports as generated from this project are Unclassified Controlled Information; and as such are subject to disclosure in accordance with the Freedom of Information Act. Therefore, this report defines the regions that were analyzed and the basic methodologies and assumptions used to completing the analysis.

  13. TIDAL DISRUPTION FLARES: THE ACCRETION DISK PHASE

    SciTech Connect (OSTI)

    Montesinos Armijo, Matias; De Freitas Pacheco, Jose A. [Observatoire de la Cote d'Azur, Laboratoire Cassiopee, Universite de Nice Sophia-Antipolis Bd de l'Observatoire, BP 4229, 06304 Nice Cedex 4 (France)

    2011-08-01

    The evolution of an accretion disk, formed as a consequence of the disruption of a star by a black hole, is followed by solving numerically hydrodynamic equations. The present investigation aims to study the dependence of resulting light curves on dynamical and physical properties of such a transient disk during its existence. One of the main results derived from our simulations is that blackbody fits of X-ray data tend to overestimate the true mean disk temperature. In fact, the temperature derived from blackbody fits should be identified with the color X-ray temperature rather than the average value derived from the true temperature distribution along the disk. The time interval between the beginning of the circularization of the bound debris and the beginning of the accretion process by the black hole is determined by the viscous (or accretion) timescale, which also fixes the rising part of the resulting light curve. The luminosity peak coincides with the beginning of matter accretion by the black hole and the late evolution of the light curve depends on the evolution of the debris fallback rate. Peak bolometric luminosities are in the range 10{sup 45}-10{sup 46} erg s{sup -1}, whereas peak luminosities in soft X-rays (0.2-2.0 keV) are typically one order of magnitude lower. The typical timescale derived from our preferred models for the flare luminosity to decay by two orders of magnitude is about 3-4 yr. Predicted soft X-ray light curves reproduce quite well data on galaxies in which a variable X-ray emission possibly related to a tidal event was detected. In the cases of NGC 3599 and IC 3599, data are reproduced well by models defined by a black hole with mass {approx}10{sup 7} M{sub sun} and a disrupted star of about 1 solar mass. The X-ray variation observed in XMMSL1 is consistent with a model defined by a black hole with mass {approx}3 x 10{sup 6} M{sub sun} and a disrupted star of 1 solar mass, while that observed in the galaxy situated in the cluster A1689 is consistent with a model including a black hole of {approx}10{sup 7} M{sub sun} and a disrupted star of {approx}0.5 M{sub sun}.

  14. Implementing the web map service for the University of Edinburgh 

    E-Print Network [OSTI]

    Dai, Songheng

    2007-11-27

    This paper describes for a necessity of new approach to the web based-map service for the University of Edinburgh. An interactive online map is developed to implement the feature of the static map in the web site of the university. The Google Map...

  15. Features, Events, and Processes: Disruptive Events

    SciTech Connect (OSTI)

    P. Sanchez

    2004-11-08

    The purpose of this analysis report is to evaluate and document the inclusion or exclusion of the disruptive events features, events, and processes (FEPs) with respect to modeling used to support the total system performance assessment for license application (TSPA-LA). A screening decision, either ''Included'' or ''Excluded,'' is given for each FEP, along with the technical basis for screening decisions. This information is required by the U.S. Nuclear Regulatory Commission (NRC) at 10 CFR 63.114 (d), (e), and (f) [DIRS 156605]. The FEPs addressed in this report deal with both seismic and igneous disruptive events, such as fault displacements through the repository and an igneous intrusion into the repository. For included FEPs, this analysis summarizes the implementation of the FEP in TSPA-LA (i.e., how the FEP is included). For excluded FEPs, this analysis provides the technical basis for exclusion from TSPA-LA (i.e., why the FEP is excluded). Previous versions of this report were developed to support the total system performance assessments (TSPA) for various prior repository designs. This revision addresses the repository design for the license application (LA).

  16. Homeowners: Respond to Natural Gas Disruptions | Department of...

    Office of Environmental Management (EM)

    through underground pipelines, delivery disruptions occur less often than electrical outages. Severe storms, flooding, and earthquakes can expose and break pipes,...

  17. Local Leaders: Respond to Natural Gas Disruptions | Department...

    Office of Environmental Management (EM)

    through underground pipelines, delivery disruptions occur less often than electrical outages. Severe storms, flooding, and earthquakes can expose and break pipes,...

  18. COLD BUBBLE FORMATION DURING TOKAMAK DENSITY LIMIT DISRUPTIONS

    E-Print Network [OSTI]

    Howard, John

    COLD BUBBLE FORMATION DURING TOKAMAK DENSITY LIMIT DISRUPTIONS J. HOWARD, M. PERSSON* Plasma Research Laboratory, Research School of Physical Sciences, Australian National University, Canberra

  19. Mapping the Nanoscale Landscape

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

    Mapping the Nanoscale Landscape Mapping the Nanoscale Landscape Print Wednesday, 27 September 2006 00:00 For the first time, researchers have successfully mapped the chemical...

  20. Compact object mergers: Observations of supermassive binary black holes and stellar tidal disruption events

    E-Print Network [OSTI]

    Komossa, S

    2015-01-01

    The capture and disruption of stars by supermassive black holes (SMBHs), and the formation and coalescence of binaries, are inevitable consequences of the presence of SMBHs at the cores of galaxies. Pairs of active galactic nuclei (AGN) and binary SMBHs are important stages in the evolution of galaxy mergers, and an intense search for these systems is currently ongoing. In the early and advanced stages of galaxy merging, observations of the triggering of accretion onto one or both BHs inform us about feedback processes and BH growth. Identification of the compact binary SMBHs at parsec and sub-parsec scales provides us with important constraints on the interaction processes that govern the shrinkage of the binary beyond the "final parsec". Coalescing binary SMBHs are among the most powerful sources of gravitational waves (GWs) in the universe. Stellar tidal disruption events (TDEs) appear as luminous, transient, accretion flares when part of the stellar material is accreted by the SMBH. About 30 events have b...

  1. Post-Disruptive Runaway Electron Beam in COMPASS Tokamak

    E-Print Network [OSTI]

    Vlainic, Milos; Cavalier, Jordan; Weinzettl, Vladimir; Paprok, Richard; Imrisek, Martin; Ficker, Ondrej; Noterdaeme, Jean-Marie

    2015-01-01

    For ITER-relevant runaway electron studies, such as suppression, mitigation, termination and/or control of runaway beam, obtaining the runaway electrons after the disruption is important. In this paper we report on the first achieved discharges with post-disruptive runaway electron beam, entitled "runaway plateau", in the COMPASS tokamak. The runaway plateau is produced by massive gas injection of argon. Almost all of the disruptions with runaway electron plateaus occurred during the plasma current ramp-up phase. Comparison between the Ar injection discharges with and without plateau has been done for various parameters. Parametrisation of the discharges shows that COMPASS disruptions fulfill the range of parameters important for the runaway plateau occurrence. These parameters include electron density, electric field, disruption speed, effective safety factor, maximum current quench electric field. In addition to these typical parameters, the plasma current value just before the massive gas injection surpris...

  2. Mining Protein Contact Maps Jingjing Hu

    E-Print Network [OSTI]

    Bystroff, Chris

    -local (fre- quent) dense patterns in their contact maps, and compile a library of such non-local interactions methods like clustering, classification, association rules, hidden Markov models, etc. The ability

  3. Site Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment Top Scientific ImpactTechnologies |Site IndexSite Map

  4. Site Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|Sensitive Species3 Outlook forSimulationsSite Map TUNL pdf's |

  5. Eastern Energy Zones Mapping Tool | Department of Energy

    Office of Environmental Management (EM)

    Planning Council (EISPC) has released the Energy Zones (EZ) Mapping Tool, a free, web-based interactive tool that will help states and other stakeholders in the Eastern...

  6. Determining protein interaction specificity of native and designed bZIP family transcription factors

    E-Print Network [OSTI]

    Reinke, Aaron W

    2012-01-01

    Protein-protein interactions are important for almost all cellular functions. Knowing which proteins interact with one another is important for understanding protein function as well as for being able to disrupt their ...

  7. Snacktime for Hungry Black Holes: Theoretical Studies of the Tidal Disruption of Stars

    E-Print Network [OSTI]

    Strubbe, Linda Elisabeth

    2011-01-01

    bound gas onto the BH powers the tidal disruption flare, andof an X-ray Power-law The candidate tidal disruption eventstidal disruption spectra will contain a high-energy power-

  8. Real Time Simulation of Power Grid Disruptions

    SciTech Connect (OSTI)

    Chinthavali, Supriya; Dimitrovski, Aleksandar D; Fernandez, Steven J; Groer, Christopher S; Nutaro, James J; Olama, Mohammed M; Omitaomu, Olufemi A; Shankar, Mallikarjun; Spafford, Kyle L; Vacaliuc, Bogdan

    2012-11-01

    DOE-OE and DOE-SC workshops (Reference 1-3) identified the key power grid problem that requires insight addressable by the next generation of exascale computing is coupling of real-time data streams (1-2 TB per hour) as the streams are ingested to dynamic models. These models would then identify predicted disruptions in time (2-4 seconds) to trigger the smart grid s self healing functions. This project attempted to establish the feasibility of this approach and defined the scientific issues, and demonstrated example solutions to important smart grid simulation problems. These objectives were accomplished by 1) using the existing frequency recorders on the national grid to establish a representative and scalable real-time data stream; 2) invoking ORNL signature identification algorithms; 3) modeling dynamically a representative region of the Eastern interconnect using an institutional cluster, measuring the scalability and computational benchmarks for a national capability; and 4) constructing a prototype simulation for the system s concept of smart grid deployment. The delivered ORNL enduring capability included: 1) data processing and simulation metrics to design a national capability justifying exascale applications; 2) Software and intellectual property built around the example solutions; 3) demonstrated dynamic models to design few second self-healing.

  9. A Bright Year for Tidal Disruptions?

    E-Print Network [OSTI]

    Metzger, Brian D

    2015-01-01

    When a star is tidally disrupted by a supermassive black hole (BH), roughly half of its mass falls back to the BH at super-Eddington rates. Being tenuously gravitationally bound and unable to cool radiatively, only a small fraction f_in few 1e4 K, converting the emission to optical/near-UV wavelengths where photons more readily escape due to the lower opacity. This can explain the unexpectedly low and temporally constant effective temperatures of optically-discovered TDE flares. For BHs with relatively high masses M_BH > 1e7 M_sun the ejecta can become ionized at an earlier stage, or for a wider range of viewing angles, producing a TDE flare which is instead dominated by thermal X-ray emission. We predict total radiated energies consistent with those of observed TDE flares, and ejecta velocities that agree with the measured emission line widths. The peak optical luminosity for M_BH wind, possibly contributing to the unexpected dearth of o...

  10. Obesity, diabetes, and associated costs of exposure to endocrine-disrupting chemicals in the European Union

    E-Print Network [OSTI]

    2015-01-01

    to Endocrine-Disrupting Chemicals in the European UnionB. Endocrine disrupting chemicals and the developmentalburden of disease due to chemicals: a systematic re- view.

  11. ARPA-E Announces $60 Million for Disruptive Technologies to Cut...

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

    ARPA-E Announces 60 Million for Disruptive Technologies to Cut Emissions, Boost Energy Efficiency ARPA-E Announces 60 Million for Disruptive Technologies to Cut Emissions, Boost...

  12. Supply chain disruptions : managing risks vs. managing crises

    E-Print Network [OSTI]

    Lee, Garrett J. (Garrett James)

    2007-01-01

    This thesis looks at two back-to-back disruptive supply chain events, one due to a sole-supplier's bankruptcy and the other caused by Hurricane Rita, that occurred at a specialty chemical company, and uses these examples ...

  13. Detecting Disruptive Routers: A Distributed Network Monitoring Kirk A. Bradley

    E-Print Network [OSTI]

    Yoo, S. J. Ben

    Detecting Disruptive Routers: A Distributed Network Monitoring Approach Kirk A. Bradley Steven of this work in other works must be obtained from the IEEE. Kirk Bradley's current a liation is SRI

  14. Simulating Impacts of Disruptions to Liquid Fuels Infrastructure

    SciTech Connect (OSTI)

    Wilson, Michael; Corbet, Thomas F.; Baker, Arnold B.; O'Rourke, Julia M.

    2015-04-01

    This report presents a methodology for estimating the impacts of events that damage or disrupt liquid fuels infrastructure. The impact of a disruption depends on which components of the infrastructure are damaged, the time required for repairs, and the position of the disrupted components in the fuels supply network. Impacts are estimated for seven stressing events in regions of the United States, which were selected to represent a range of disruption types. For most of these events the analysis is carried out using the National Transportation Fuels Model (NTFM) to simulate the system-level liquid fuels sector response. Results are presented for each event, and a brief cross comparison of event simulation results is provided.

  15. Geologic Maps Geology 200

    E-Print Network [OSTI]

    Kammer, Thomas

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

  16. Africa Infrastructure Country Diagnostic Documents: Interactive...

    Open Energy Info (EERE)

    Africa Infrastructure Country Diagnostic Documents: Interactive MAP in PDF, all Countries Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Africa Infrastructure Country...

  17. Feature Selection for Disruption Prediction from Scratch in JET by using Genetic Algorithms and Probabilistic Predictors

    E-Print Network [OSTI]

    Feature Selection for Disruption Prediction from Scratch in JET by using Genetic Algorithms and Probabilistic Predictors

  18. Adaptive High Learning Rate Probabilistic Disruption Predictors from Scratch for the Next Generation of Tokamaks

    E-Print Network [OSTI]

    Adaptive High Learning Rate Probabilistic Disruption Predictors from Scratch for the Next Generation of Tokamaks

  19. April 10, 2014- “Workplace Disruptions, Reorganizations, and ‘Change Fatigue’: Can ADR Support Resilience?”

    Broader source: Energy.gov [DOE]

    April 10, 2014 - “Workplace Disruptions, Reorganizations, and ‘Change Fatigue’: Can ADR Support Resilience?”

  20. Massive Gas Injection Experiments at JET – Performance and Characterisation of the Disruption Mitigation Valve

    E-Print Network [OSTI]

    Massive Gas Injection Experiments at JET – Performance and Characterisation of the Disruption Mitigation Valve

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

    E-Print Network [OSTI]

    Fishkin, Shelley Fisher

    2011-01-01

    DEEP  MAPS”:  A  Brief  for   Digital  Projects   (DPMPs,  or  “Deep  Maps”)   SHELLEY  FISHER  acronym   DPMPs   as   “Deep   Maps. ”   They   would  

  2. TURBOVELOCITY STARS: KICKS RESULTING FROM THE TIDAL DISRUPTION OF SOLITARY STARS

    SciTech Connect (OSTI)

    Manukian, Haik; Guillochon, James; Ramirez-Ruiz, Enrico [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); O'Leary, Ryan M., E-mail: jfg@ucolick.org [Department of Astronomy, University of California, Berkeley, CA 94720 (United States)

    2013-07-10

    The centers of most known galaxies host supermassive black holes (SMBHs). In orbit around these black holes are a centrally concentrated distribution of stars, both in single and in binary systems. Occasionally, these stars are perturbed onto orbits that bring them close to the SMBH. If the star is in a binary system, the three-body interaction with the SMBH can lead to large changes in orbital energy, depositing one of the two stars on a tightly-bound orbit, and its companion into a hyperbolic orbit that may escape the galaxy. In this Letter, we show that the disruption of solitary stars can also lead to large positive increases in orbital energy. The kick velocity depends on the amount of mass the star loses at pericenter, but not on the ratio of black hole to stellar mass, and are at most the star's own escape velocity. We find that these kicks are usually too small to result in the ejection of stars from the Milky Way, but can eject the stars from the black hole's sphere of influence, reducing their probability of being disrupted again. We estimate that {approx} 10{sup 5} stars, {approx} 1% of all stars within 10 pc of the galactic center, are likely to have had mass removed by the central black hole through tidal interaction, and speculate that these 'turbovelocity' stars will at first be redder, but eventually bluer, and always brighter than their unharassed peers.

  3. Career Map: Instrumentation Coordinator

    Broader source: Energy.gov [DOE]

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

  4. Runaway Geneeration In Disruptions Of Plasmas In TFTR

    SciTech Connect (OSTI)

    Fredrickson, E. D.; Bell, M. G.; Taylor, G.; Medley, S. S.

    2014-03-31

    Many disruptions in the Tokamak Fusion Test Reactor (TFTR) [D. Meade and the TFTR Group, in Proceedings of the International Conference on Plasma Physics and Controlled Nuclear Fusion, Washington, DC, 1990 (International Atomic Energy Agency, Vienna, 1991), Vol. 1, pp. 9-24] produced populations of runaway electrons which carried a significant fraction of the original plasma current. In this paper, we describe experiments where, following a disruption of a low-beta, reversed shear plasma, currents of up to 1 MA carried mainly by runaway electrons were controlled and then ramped down to near zero using the ohmic transformer. In the longer lasting runaway plasmas, Parail-Pogutse instabilities were observed.

  5. Disruption Energy Loads on Plasma Facing Components in JET

    E-Print Network [OSTI]

    /orotherMHD ITBhighbetaand/orotherMHD Eth(dis) div IR DISRUPTION HEAT LOADS: THERMAL & DIVERTOR ENERGY #12;EE Thermal energy) Thermal energy ~ 1.8 MJ Divertor energy ~ 0.8 MJ 45% of Eth to divertor Magnetic energy ~ 13 MJ Radiated energy ~ 8 MJ Neutral beams during NTM ~ 1 MJ 6 MJ not accounted (33%) #12;EE · Radiation follows thermal

  6. Relativistic effects on tidal disruption kicks of solitary stars

    E-Print Network [OSTI]

    Gafton, Emanuel; Guillochon, James; Korobkin, Oleg; Rosswog, Stephan

    2015-01-01

    Solitary stars that wander too close to their galactic centres can become tidally disrupted, if the tidal forces due to the supermassive black hole (SMBH) residing there overcome the self-gravity of the star. If the star is only partially disrupted, so that a fraction survives as a self-bound object, this remaining core will experience a net gain in specific orbital energy, which translates into a velocity "kick" of up to $\\sim 10^3$ km/s. In this paper, we present the result of smoothed particle hydrodynamics (SPH) simulations of such partial disruptions, and analyse the velocity kick imparted on the surviving core. We compare $\\gamma$ = 5/3 and $\\gamma$ = 4/3 polytropes disrupted in both a Newtonian potential, and a generalized potential that reproduces most relativistic effects around a Schwarzschild black hole either exactly or to excellent precision. For the Newtonian case, we confirm the results of previous studies that the kick velocity of the surviving core is virtually independent of the ratio of the...

  7. Cell Metabolism RBP4 Disrupts Vitamin A Uptake Homeostasis

    E-Print Network [OSTI]

    Palczewski, Krzysztof

    Cell Metabolism Article RBP4 Disrupts Vitamin A Uptake Homeostasis in a STRA6-Deficient Animal The cellular uptake of vitamin A from its RBP4-bound circulating form (holo-RBP4) is a homeostatic process.Loss-of-function analysisinzebrafish embryos revealed that Stra6 deficiency caused vitamin A depri- vation of the developing eyes. We

  8. PROJECT PROFILE: Rapid Development of Disruptive Photovoltaic Technologies

    Broader source: Energy.gov [DOE]

    This project aims to demonstrate potentially disruptive, novel photovoltaic (PV) absorbers by developing proof-of-concept PV device prototypes composed of defect-tolerant inorganic thin film oxide/nitride absorbers. “Defect tolerance” is the tendency of a semiconductor to maintain good transport and doping properties despite the presence of crystallographic defects and is a key property of promising PV materials.

  9. Pellet Driven Disruptions in Tokamaks H.R. Strauss

    E-Print Network [OSTI]

    Strauss, Hank

    Pellet Driven Disruptions in Tokamaks H.R. Strauss Courant Institute of Mathematical Sciences New York University W. Park Princeton Plasma Physics Laboratory Abstract Pellet injection can trigger ballooning like instability in tokamaks, driven by the large pressure perturbation of the pellet cloud

  10. DISRUPTION MITIGATION WITH HIGH-PRESSURE NOBLE GAS INJECTION

    SciTech Connect (OSTI)

    WHYTE, DG; JERNIGAN, TC; HUMPHREYS, DA; HYATT, AW; LASNIER, CJ; PARKS, PB; EVANS, TE; TAYLOR, PL; KELLMAN, AG; GRAY, DS; HOLLMANN, EM

    2002-10-01

    OAK A271 DISRUPTION MITIGATION WITH HIGH-PRESSURE NOBLE GAS INJECTION. High-pressure gas jets of neon and argon are used to mitigate the three principal damaging effects of tokamak disruptions: thermal loading of the divertor surfaces, vessel stress from poloidal halo currents and the buildup and loss of relativistic electrons to the wall. The gas jet penetrates as a neutral species through to the central plasma at its sonic velocity. The injected gas atoms increase up to 500 times the total electron inventory in the plasma volume, resulting in a relatively benign radiative dissipation of >95% of the plasma stored energy. The rapid cooling and the slow movement of the plasma to the wall reduce poloidal halo currents during the current decay. The thermally collapsed plasma is very cold ({approx} 1-2 eV) and the impurity charge distribution can include > 50% fraction neutral species. If a sufficient quantity of gas is injected, the neutrals inhibit runaway electrons. A physical model of radiative cooling is developed and validated against DIII-D experiments. The model shows that gas jet mitigation, including runaway suppression, extrapolates favorably to burning plasmas where disruption damage will be more severe. Initial results of real-time disruption detection triggering gas jet injection for mitigation are shown.

  11. Mechanism of runaway electron beam formation during plasma disruptions in tokamaks

    E-Print Network [OSTI]

    Abdullaev, S S; Wongrach, K; Tokar, M; Koslowski, H R; Willi, O; Zeng, L

    2015-01-01

    A new physical mechanism of the formation of runaway electron (RE) beams during plasma disruptions in tokamaks is proposed. The plasma disruption is caused by strong stochastic magnetic field formed due to nonlinearly excited low-mode number magnetohydrodynamic (MHD) modes. It is conjectured that the runaway electron beam is formed in the central plasma region confined inside the intact magnetic surface located between $q=1$ and the closest low--order rational magnetic surfaces [$q=3/2$, $q=4/3$, \\dots]. It results in that runaway electron beam current has a helical nature with a predominant $m/n=1/1$ component. The thermal quench and current decay times are estimated using the collisional models for electron diffusion and ambipolar particle transport in a stochastic magnetic field, respectively. Possible mechanisms of the decay of runaway electron current due to an outward drift electron orbits and resonance interaction of high--energy electrons with the $m/n=1/1$ MHD mode are discussed.

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

    E-Print Network [OSTI]

    Kelley, Luke Zoltan; Narayan, Ramesh

    2014-01-01

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

  13. Probing the tidal disruption flares of massive black holes with high-energy neutrinos

    E-Print Network [OSTI]

    Wang, Xiang-Yu; Dai, Zi-Gao; Cheng, K S

    2011-01-01

    The recently discovered high-energy transient Swift J164449.3+573451 (Sw J1644+57) is thought to arise from the tidal disruption of a passing star by a dormant massive black hole. Modeling of the broadband emission suggests the presence of a powerful relativistic jet, which contributes dominantly to the observed X-ray emission. Here we suggest that high energy protons accelerated by internal shocks in the jets produce ~0.1-10 PeV neutrinos through photomeson interactions with X-ray photons. The large X-ray fluence (7*10^{-4} erg cm^{-2}) and high photopion efficiency, together with the insignificant cooling of secondary mesons, result in bright neutrino emission expected from Sw J1644+57 if the jet composition is matter-dominated. One to several neutrinos may be detected by a Km^3-scale detector from one tidal disruption event similar to Sw J1644+57, thereby providing a powerful probe of the composition of the jets.

  14. First measurements of ion energy distribution at the divertor strike point during DIII-D disruptions

    SciTech Connect (OSTI)

    Parks, P.B.; Brooks, N.H.; West, W.P.; Wong, C.P.C. [General Atomics, San Diego, CA (United States); Bastasz, R.; Wampler, W.R.; Whyte, D.

    1995-12-31

    Plasma/wall interaction studies are being carried out using the Divertor Materials Exposure System (DiMES) on DIII-D. The objective of the experiment is to determine the kinetic energy and flux of deuterium ions reaching the divertor target during argon-induced radiative disruptions. The experiment utilizes a special slotted ion analyzer mounted over a Si sample to collect the fast charge-exchange (CX) deuterium neutrals emitted within the recycled cold neutral layer (CNL) which serves as a CX target for the incident ions. A theoretical interpretation of the experiment reveals a strong forward pitch-angle dependence in the approaching ion distribution function. The depth distribution of the trapped D in the Si sample was measured using low-energy direct recoil spectroscopy. Comparison with the TRIM code using monoenergetic ions indicated that the best fit to the data was obtained for an ion energy of 100 eV. An estimate of the CNL thickness {integral}nd{ell} indicates that during disruptions the CNL cushion is thick enough to reduce the local ion heat load by {approximately}30% due to CX refluxing.

  15. Introgression & mapping Fiber cell

    E-Print Network [OSTI]

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

  16. National Hydropower Map

    Broader source: Energy.gov [DOE]

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

  17. WIPP Projects Interative Map

    Broader source: Energy.gov [DOE]

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

  18. Flood Inundation Mapping

    E-Print Network [OSTI]

    Pearson, Wendy

    2009-11-18

    for Life Decisions” Page 16 Inundation Mapping Activities There are considerable interests across many parts of Central Region. Central Indiana Partnership among NOAA, USGS, Polis Center, and Indiana to develop near real-time inundation maps based... for Life Decisions” Page 16 Inundation Mapping Activities There are considerable interests across many parts of Central Region. Central Indiana Partnership among NOAA, USGS, Polis Center, and Indiana to develop near real-time inundation maps based...

  19. Plant UVR8 Photoreceptor Senses UV-B by Tryptophan-Mediated Disruption...

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

    Plant UVR8 Photoreceptor Senses UV-B by Tryptophan-Mediated Disruption of Cross-Dimer Salt Bridges Plant UVR8 Photoreceptor Senses UV-B by Tryptophan-Mediated Disruption of...

  20. Snacktime for Hungry Black Holes: Theoretical Studies of the Tidal Disruption of Stars

    E-Print Network [OSTI]

    Strubbe, Linda Elisabeth

    2011-01-01

    tidal disruption rate as a function of pericenter distance at various energies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tidal disruption rate as a function of pericenter distance at various energies2.5: Spectral energy distributions for tidal flares around a

  1. HORTICULTURAL ENTOMOLOGY Intentional Coverage Gaps Reduce Cost of Mating Disruption for

    E-Print Network [OSTI]

    Burns, Jacqueline K.

    axonopodis pv. citri (Gottwald et al. 2007, Hall et al. 2010). Successful mating disruption of P). This is the Þrst use of mating disruption in Florida citrus; adoption by growers will depend on product

  2. Measurement of projectile energy and velocity requirements for the disruption of unexploded ordnance

    E-Print Network [OSTI]

    Jeunnette, Mark N. (Mark Nathaniel), 1979-

    2013-01-01

    This paper details the design and fabrication of a disrupting test rig for measuring the energy required to separate the fuze from the casing of unexploded ordnance (UXO), also called disrupting the device. Preliminary ...

  3. Capacity dynamics of feed-forward, flow-matching networks exposed to random disruptions 

    E-Print Network [OSTI]

    Savachkin, Aliaksei

    2006-10-30

    While lean manufacturing has greatly improved the efficiency of production operations, it has left US enterprises in an increasingly risky environment. Causes of manufacturing disruptions continue to multiply, and today, seemingly minor disruptions...

  4. Mating Disruption of Citrus Leafminer Mediated by a Noncompetitive Mechanism at a Remarkably Low

    E-Print Network [OSTI]

    Burns, Jacqueline K.

    analyses combined with direct behavioral observations consistent with previously published theoretical- viously published mathematical methods matched predictions of noncompetitive mating disruption. Behavioral observations of male P. citrella in the field revealed that males did not approach mating disruption dispensers

  5. Curriculum Mapping . 1 .../...

    E-Print Network [OSTI]

    Laksanacharoen, Sathaporn

    #12; TQF ­ #12; / . 5 / #12; 5 #12;Curriculum Mapping #12 ( (Curriculum Mapping) 1) 2) 1 3) ) #12; 1. - - - - - - - - #12. - - - - - - - - - - 0.3 - Power- point - .. #12;2. ( (CurriculumMapping) ) * 1.4, 1.5 2.2, 2.3, 2.6 3

  6. Historical Maps Online 

    E-Print Network [OSTI]

    Rumsey, David Y.

    2005-01-31

    ://www.davidrumsey.com/, which currently has over 10,000 high resolution images of maps from his collection. He has also built a suite of tools for users to experience and interpret the maps online. These include GIS, which allows users to combine historical maps with modern...

  7. Maps & Web Mapping: An Introduction to Cartography Edition (2015)

    E-Print Network [OSTI]

    Clarke, Keith

    2015-01-01

    Showcase Site http://www.pearsonhighered.com/clarke-1e-info/index.html Catalog Link Maps & Web MappingMaps & Web Mapping: An Introduction to Cartography 1st Edition (2015) By Keith Clarke Links

  8. On the Value of a Threat Advisory System for Managing Supply Chain Disruptions

    E-Print Network [OSTI]

    Snyder, Larry

    , 2006 Most firms face some risk of disruption to their supply due to labor strikes, supplier of the fact that the risk of disruption may change over time, some firms have begun to continually monitor their disruption risk and to adjust their safeguards, e.g., inventory, in accordance with the current risk level

  9. Jets from Tidal Disruptions of Stars by Black Holes

    E-Print Network [OSTI]

    Julian H. Krolik; Tsvi Piran

    2012-02-07

    Tidal disruption of main sequence stars by black holes has generally been thought to lead to a signal dominated by UV emission. If, however, the black hole spins rapidly and the poloidal magnetic field intensity on the black hole horizon is comparable to the inner accretion disk pressure, a powerful jet may form whose luminosity can easily exceed the thermal UV luminosity. When the jet beam points at Earth, its non-thermal luminosity can dominate the emitted spectrum. The thermal and non-thermal components decay differently with time. In particular, the thermal emission should remain roughly constant for a significant time after the period of maximum accretion, beginning to diminish only after a delay, whereas after the peak accretion rate, the non-thermal jet emission decays, but then reaches a plateau. Both transitions are tied to a characteristic timescale $t_{\\rm Edd}$ at which the accretion rate falls below Eddington. Making use of this timescale in a new parameter-inference formalism for tidal disruption events with significant emission from a jet, we analyze the recent flare source Swift J2058. It is consistent with an event in which a main sequence solar-type staris disrupted by a black hole of mass $\\sim 4 \\times 10^7 M_{\\odot}$. The beginning of the flat phase in the non-thermal emission from this source can possibly be seen in the late-time lightcurve. Optical photometry over the first $\\simeq 40$ d of this flare is also consistent with this picture, but is only weakly constraining because the bolometric correction is very uncertain. We suggest that future searches for main sequence tidal disruptions use methods sensitive to jet radiation as well as to thermal UV radiation.

  10. Efficient Posterior Probability Mapping Using Savage-Dickey Ratios

    E-Print Network [OSTI]

    Penny, Will

    Efficient Posterior Probability Mapping Using Savage- Dickey Ratios William D. Penny*, Gerard R interactive manner. Citation: Penny WD, Ridgway GR (2013) Efficient Posterior Probability Mapping Using Savage, 2013 Copyright: Ã? 2013 Penny, Ridgway. This is an open-access article distributed under the terms

  11. A continuum of H- to He-rich tidal disruption candidates with a preference for E+A galaxies

    SciTech Connect (OSTI)

    Arcavi, Iair; Gal-Yam, Avishay; Horesh, Assaf; Ofek, Eran O.; De Cia, Annalisa; Tal, David; Sullivan, Mark; Pan, Yen-Chen; Cenko, S. Bradley; Yan, Lin; Yang, Chen-Wei; Howell, D. A.; Kulkarni, Shrinivas R.; Tendulkar, Shriharsh P.; Cohen, Judith G.; Tang, Sumin; Xu, Dong; Sternberg, Assaf; Bloom, Joshua S.; Nugent, Peter E.; and others

    2014-09-20

    We present the results of a Palomar Transient Factory (PTF) archival search for blue transients that lie in the magnitude range between 'normal' core-collapse and superluminous supernovae (i.e., with –21 ? M {sub R} {sub (peak)} ? – 19). Of the six events found after excluding all interacting Type IIn and Ia-CSM supernovae, three (PTF09ge, 09axc, and 09djl) are coincident with the centers of their hosts, one (10iam) is offset from the center, and a precise offset cannot be determined for two (10nuj and 11glr). All the central events have similar rise times to the He-rich tidal disruption candidate PS1-10jh, and the event with the best-sampled light curve also has similar colors and power-law decay. Spectroscopically, PTF09ge is He-rich, while PTF09axc and 09djl display broad hydrogen features around peak magnitude. All three central events are in low star formation hosts, two of which are E+A galaxies. Our spectrum of the host of PS1-10jh displays similar properties. PTF10iam, the one offset event, is different photometrically and spectroscopically from the central events, and its host displays a higher star formation rate. Finding no obvious evidence for ongoing galactic nuclei activity or recent star formation, we conclude that the three central transients likely arise from the tidal disruption of a star by a supermassive black hole. We compare the spectra of these events to tidal disruption candidates from the literature and find that all of these objects can be unified on a continuous scale of spectral properties. The accumulated evidence of this expanded sample strongly supports a tidal disruption origin for this class of nuclear transients.

  12. Map-likelihood phasing

    SciTech Connect (OSTI)

    Terwilliger, Thomas C., E-mail: terwilliger@lanl.gov [Bioscience Division, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    2001-12-01

    A map-likelihood function is described that can yield phase probabilities with very low model bias. The recently developed technique of maximum-likelihood density modification [Terwilliger (2000 ?), Acta Cryst. D56, 965–972] allows a calculation of phase probabilities based on the likelihood of the electron-density map to be carried out separately from the calculation of any prior phase probabilities. Here, it is shown that phase-probability distributions calculated from the map-likelihood function alone can be highly accurate and that they show minimal bias towards the phases used to initiate the calculation. Map-likelihood phase probabilities depend upon expected characteristics of the electron-density map, such as a defined solvent region and expected electron-density distributions within the solvent region and the region occupied by a macromolecule. In the simplest case, map-likelihood phase-probability distributions are largely based on the flatness of the solvent region. Though map-likelihood phases can be calculated without prior phase information, they are greatly enhanced by high-quality starting phases. This leads to the technique of prime-and-switch phasing for removing model bias. In prime-and-switch phasing, biased phases such as those from a model are used to prime or initiate map-likelihood phasing, then final phases are obtained from map-likelihood phasing alone. Map-likelihood phasing can be applied in cases with solvent content as low as 30%. Potential applications of map-likelihood phasing include unbiased phase calculation from molecular-replacement models, iterative model building, unbiased electron-density maps for cases where 2F{sub o} ? F{sub c} or ?{sub A}-weighted maps would currently be used, structure validation and ab initio phase determination from solvent masks, non-crystallographic symmetry or other knowledge about expected electron density.

  13. MapReduce SVM Game

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

    Vineyard, Craig M.; Verzi, Stephen J.; James, Conrad D.; Aimone, James B.; Heileman, Gregory L.

    2015-08-10

    Despite technological advances making computing devices faster, smaller, and more prevalent in today's age, data generation and collection has outpaced data processing capabilities. Simply having more compute platforms does not provide a means of addressing challenging problems in the big data era. Rather, alternative processing approaches are needed and the application of machine learning to big data is hugely important. The MapReduce programming paradigm is an alternative to conventional supercomputing approaches, and requires less stringent data passing constrained problem decompositions. Rather, MapReduce relies upon defining a means of partitioning the desired problem so that subsets may be computed independently andmore »recom- bined to yield the net desired result. However, not all machine learning algorithms are amenable to such an approach. Game-theoretic algorithms are often innately distributed, consisting of local interactions between players without requiring a central authority and are iterative by nature rather than requiring extensive retraining. Effectively, a game-theoretic approach to machine learning is well suited for the MapReduce paradigm and provides a novel, alternative new perspective to addressing the big data problem. In this paper we present a variant of our Support Vector Machine (SVM) Game classifier which may be used in a distributed manner, and show an illustrative example of applying this algorithm.« less

  14. Grand Challenges in Global Health Grand Challenges Projects > Control Insect Vectors > Chemical Strategy Site Map | Quick Search

    E-Print Network [OSTI]

    Strategy Site Map | Quick Search: Improve Vaccines - Single-Dose Vaccines - Heat-Stable Vaccines - Needle. Grand Challenge #8: Develop a Chemical Strategy to Control Insects Disruption of Malaria Transmission, and low-cost mosquito repellants that will reduce malaria transmission in endemic areas. Molecular

  15. Allinea MAP at NERSC

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

    Graphical User Interface can be greatly improved if used in conjunction with the free NX software. Introduction Allinea MAP is a parallel profiler with simple Graphical User...

  16. Site Monitoring Area Maps

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

    and roads The spatial location and boundaries for each Site shown on the Site Monitoring Area maps originate from activities conducted under the Compliance Order on Consent with...

  17. Regularity of mappings inverse to Sobolev mappings

    SciTech Connect (OSTI)

    Vodop'yanov, Sergei K [S.L. Sobolev Institute for Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

    2012-10-31

    For homeomorphisms {phi}:{Omega}{yields}{Omega}' on Euclidean domains in R{sup n}, n{>=}2, necessary and sufficient conditions ensuring that the inverse mapping belongs to a Sobolev class are investigated. The result obtained is used to describe a new two-index scale of homeomorphisms in some Sobolev class such that their inverses also form a two-index scale of mappings, in another Sobolev class. This scale involves quasiconformal mappings and also homeomorphisms in the Sobolev class W{sup 1}{sub n-1} such that rankD{phi}(x){<=}n-2 almost everywhere on the zero set of the Jacobian det D{phi}(x). Bibliography: 65 titles.

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

    E-Print Network [OSTI]

    Peterson, Michael

    2014-11-19

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

  19. The influence of an ITER-like wall on disruptions at JET

    SciTech Connect (OSTI)

    Vries, P. C. de Hogeweij, G. M. D.; Baruzzo, M.; Murari, A.; Jachmich, S.; Lomas, P. J.; Matthews, G. F.; Pütterich, T.; Vega, J.; Collaboration: JET-EFDA Contributors

    2014-05-15

    In order to preserve the integrity of large tokamaks such as ITER, the number of disruptions has to be limited. JET has operated previously with a low frequency of disruptions (i.e., disruption rate) of 3.4% [P. C. de Vries et al., Nucl. Fusion 51, 053018 (2011)]. The start of operations with the new full-metal ITER-like wall at JET showed a marked rise in the disruption rate to 10%. A full survey was carried out to identify the root causes, the chain-of-events and classifying each disruption, similar to a previous analysis for carbon-wall operations. It showed the improvements made to avoid various disruption classes, but also indicated those disruption types responsible for the enhanced disruption rate. The latter can be mainly attributed to disruptions due to too high core radiation but also due to density control issues and error field locked modes. Detailed technical and physics understanding of disruption causes is essential for devising optimized strategies to avoid or mitigate these events.

  20. Photon Maps Photon Tracing

    E-Print Network [OSTI]

    Lischinski, Dani

    Photon Maps Photon Tracing Simulating light propagation by shooting photons from the light sources. Photon Tracing Storing the incidences of photon's path. Implementing surface properties statistically. Russian Roulette. Photon Tracing Photon maps keep: Incidence point (in 3D). The normal at that point

  1. Mechanisms of plasma disruption and runaway electron losses in tokamaks

    E-Print Network [OSTI]

    Abdullaev, S S; Wongrach, K; Tokar, M; Koslowski, H R; Willi, O; Zeng, L

    2015-01-01

    Based on the analysis of data from the numerous dedicated experiments on plasma disruptions in the TEXTOR tokamak mechanisms of the formation of runaway electron beams and their losses are proposed. The plasma disruption is caused by strong stochastic magnetic field formed due to nonlinearly excited low-mode number MHD modes. It is hypothesized that the runaway electron beam is formed in the central plasma region confined inside the intact magnetic surface located between $q=1$ and the closest low--order rational [$q=4/3$ or $q=3/2$] magnetic surfaces. The thermal quench time caused by the fast electron transport in a stochastic magnetic field is calculated using the collisional transport model. The current decay stage is due to the ambipolar particle transport in a stochastic magnetic field. The runaway electron beam in the confined plasma region is formed due to their acceleration the inductive toroidal electric field. The runaway electron beam current is modeled as a sum of toroidally symmetric part and a ...

  2. "Circularization" vs. Accretion -- What Powers Tidal Disruption Events?

    E-Print Network [OSTI]

    Piran, Tsvi; Krolik, Julian; Cheng, Roseanne M; Shiokawa, Hotaka

    2015-01-01

    A tidal disruption event (TDE) takes place when a star passes near enough to a massive black hole to be disrupted. About half the star's matter is given elliptical trajectories with large apocenter distances, the other half is unbound. To "circularize", i.e., to form an accretion flow, the bound matter must lose a significant amount of energy, with the actual amount depending on the characteristic scale of the flow measured in units of the black hole's gravitational radius (~ 10^{51} (R/1000R_g)^{-1} erg). Recent numerical simulations (Shiokawa et al., 2015) have revealed that the circularization scale is close to the scale of the most-bound initial orbits, ~ 10^3 M_{BH,6.5}^{-2/3} R_g ~ 10^{15} M_{BH,6.5}^{1/3} cm from the black hole, and the corresponding circularization energy dissipation rate is $\\sim 10^{44} M_{BH,6.5}^{-1/6}$~erg/s. We suggest that the energy liberated during circularization, rather then energy liberated by accretion onto the black hole, powers the observed optical TDE candidates (e.g.A...

  3. Variability in tidal disruption events: gravitationally unstable streams

    E-Print Network [OSTI]

    Coughlin, Eric R

    2015-01-01

    We present simulations of the tidal disruption of a solar mass star by a $10^6M_{\\odot}$ black hole. These, for the first time, cover the full time evolution of the tidal disruption event, starting well before the initial encounter and continuing until more than 90% of the bound material has returned to the vicinity of the hole. Our results are compared to the analytical prediction for the rate at which tidally-stripped gas falls back. We find that, for our chosen parameters, the overall scaling of the fallback rate, $\\dot{M}_{\\rm{fb}}$, closely follows the canonical $t^{-5/3}$ power-law. However, our simulations also show that the self-gravity of the tidal stream, which dominates the tidal gravity of the hole at large distances, causes some of the debris to recollapse into bound fragments before returning to the hole. This causes $\\dot{M}_{\\rm{fb}}$ to vary significantly around the $t^{-5/3}$ average. We discuss the implications of our findings in the context of the event Swift J1644+57.

  4. "Circularization" vs. Accretion -- What Powers Tidal Disruption Events?

    E-Print Network [OSTI]

    Tsvi Piran; Gilad Svirski; Julian Krolik; Roseanne M. Cheng; Hotaka Shiokawa

    2015-04-07

    A tidal disruption event (TDE) takes place when a star passes near enough to a massive black hole to be disrupted. About half the star's matter is given elliptical trajectories with large apocenter distances, the other half is unbound. To "circularize", i.e., to form an accretion flow, the bound matter must lose a significant amount of energy, with the actual amount depending on the characteristic scale of the flow measured in units of the black hole's gravitational radius ($\\sim 10^{51} (R/1000R_g)^{-1}$~erg). Recent numerical simulations \\citep{Shiokawa+2015} have revealed that the circularization scale is close to the scale of the most-bound initial orbits, $\\sim 10^3 M_{BH,6.5}^{-2/3} R_g \\sim 10^{15} M_{BH,6.5}^{1/3}$~cm from the black hole, and the corresponding circularization energy dissipation rate is $\\sim 10^{44} M_{BH,6.5}^{-1/6}$~erg/s. We suggest that the energy liberated during circularization, rather then energy liberated by accretion onto the black hole, powers the observed optical TDE candidates. The observed rise times, luminosities, temperatures, emission radii, and line widths seen in these TDEs \\citep[e.g.][]{Arcavi+2014} are all more readily explained in terms of heating associated with circularization than in terms of accretion.

  5. Maps of Selected State Subdivisions

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

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

  6. Bending map and strong convergence

    E-Print Network [OSTI]

    Schlenker, Jean-Marc

    to a * *complete hyperbolic metric associates its bending measured geodesic lamination. In the p* *resent paper Bending map and strong convergence Abstract The bending map of a hyperbolic 3-manifold with boundary maps a geometr* *ically hyper

  7. Technical Note Engineering Soils Maps

    E-Print Network [OSTI]

    Technical Note Engineering Soils Maps PAUL M. SANTI Department of Geology and Geological, Suite 100, Overland Park, KS 66211 Key Terms: Engineering Properties, Soils, Hazards, Mapping INTRODUCTION For many applications, `engineering soils maps' may be preferable to comprehensive engineering

  8. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport)PriceHistoricEnergy Efficiency »5MappingMapping aMapping

  9. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport)PriceHistoricEnergy Efficiency »5MappingMappingMapping

  10. A CD45 Polymorphism Associated with Multiple Sclerosis Disrupts an Exonic Splicing Silencer*

    E-Print Network [OSTI]

    Sharp, Kim

    A CD45 Polymorphism Associated with Multiple Sclerosis Disrupts an Exonic Splicing Silencer multiple sclerosis. In this study we investigated the mechanism by which the polymor- phism enhances

  11. White matter disruption in moderate/severe pediatric traumatic brain injury: Advanced tract-based analyses

    E-Print Network [OSTI]

    2015-01-01

    severity, and extent of the brain damage patients sustain.whereby disruption of one injured brain area spreadsto other connected brain areas. This is an on- going,

  12. Breakout Session: Disruptive Solar Technologies: Frontiers in New Materials and Approaches

    Broader source: Energy.gov [DOE]

    Disruptive solar technologies entering the PV and CSP landscape today hold the potential to greatly impact the future of solar energy conversion. This session will highlight new techniques,...

  13. Arizona Map for Commercial Buildings

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

    Home > Households, Buildings & Industry > Background Information on CBECS > 1979-1999 CBECS climate zone map Corrections Corrections to 1979-1999 CBECS Climate Zone Map, February...

  14. The Matrix of Linear Mappings

    E-Print Network [OSTI]

    Aleks Kleyn

    2010-01-27

    On the set of mappings of the given set, we define the product of mappings. If A is associative algebra, then we consider the set of matrices, whose elements are linear mappings of algebra A. In algebra of matrices of linear mappings we define the operation of product. The operation is based on the product of mappings. If the matrix a of linear mappings has an inverse matrix, then the quasideterminant of the matrix a and the inverse matrix are matrices of linear mappings. In the paper, I consider conditions when a matrix of linear mappings has inverse matrix, as well methods of solving a system of linear equations in an associative algebra.

  15. Mapping healthcare information technology

    E-Print Network [OSTI]

    Crawford, William Charles Richards

    2010-01-01

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

  16. HVAC Performance Maps

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

    h) max. 75% 50% 25% min. Speed Dane Christensen, PhD dane.christensen@nrel.gov National Renewable Energy Laboratory Performance Mapping at NREL NREL develops and validates model...

  17. Dating the Vinland Map

    ScienceCinema (OSTI)

    None

    2013-07-17

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

  18. Map of Cuba 

    E-Print Network [OSTI]

    1898-01-01

    are pithy stalk grain and juicy stalk sweet sorghums respectively. Following screening, two genetic maps were constructed with 372 and 381 single nucleotide polymorphisms (SNPs) evaluated using an Illumina GoldenGate assay. Analysis of the data in QTL...

  19. Logistic Map Potentials

    E-Print Network [OSTI]

    Thomas Curtright; Andrzej Veitia

    2010-05-27

    We develop and illustrate methods to compute all single particle potentials that underlie the logistic map, x --> sx(1-x) for 02. We illustrate the methods numerically for the cases s=5/2 and s=10/3.

  20. OPTICAL DISCOVERY OF PROBABLE STELLAR TIDAL DISRUPTION FLARES

    SciTech Connect (OSTI)

    Van Velzen, Sjoert; Farrar, Glennys R. [Center for Cosmology and Particle Physics, New York University, NY 10003 (United States); Gezari, Suvi [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218 (United States); Morrell, Nidia [Carnegie Observatories, Las Campanas Observatory, Casillas 601, La Serena (Chile); Zaritsky, Dennis [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Oestman, Linda [Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Barcelona) (Spain); Smith, Mathew [Department of Mathematics and Applied Mathematics, University of Cape Town, Rondebosch, 7701 (South Africa); Gelfand, Joseph [New York University-Abu Dhabi, Abu Dhabi (United Arab Emirates); Drake, Andrew J., E-mail: s.vanvelzen@astro.ru.nl [Center for Advance Computing Research, California Institute of Technology, Pasadena, CA 91225 (United States)

    2011-11-10

    Using archival Sloan Digital Sky Survey (SDSS) multi-epoch imaging data (Stripe 82), we have searched for the tidal disruption of stars by supermassive black holes in non-active galaxies. Two candidate tidal disruption events (TDEs) are identified. The TDE flares have optical blackbody temperatures of 2 Multiplication-Sign 10{sup 4} K and observed peak luminosities of M{sub g} = -18.3 and -20.4 ({nu}L{sub {nu}} = 5 Multiplication-Sign 10{sup 42}, 4 Multiplication-Sign 10{sup 43} erg s{sup -1}, in the rest frame); their cooling rates are very low, qualitatively consistent with expectations for tidal disruption flares. The properties of the TDE candidates are examined using (1) SDSS imaging to compare them to other flares observed in the search, (2) UV emission measured by GALEX, and (3) spectra of the hosts and of one of the flares. Our pipeline excludes optically identifiable AGN hosts, and our variability monitoring over nine years provides strong evidence that these are not flares in hidden AGNs. The spectra and color evolution of the flares are unlike any SN observed to date, their strong late-time UV emission is particularly distinctive, and they are nuclear at high resolution arguing against these being first cases of a previously unobserved class of SNe or more extreme examples of known SN types. Taken together, the observed properties are difficult to reconcile with an SN or an AGN-flare explanation, although an entirely new process specific to the inner few hundred parsecs of non-active galaxies cannot be excluded. Based on our observed rate, we infer that hundreds or thousands of TDEs will be present in current and next-generation optical synoptic surveys. Using the approach outlined here, a TDE candidate sample with O(1) purity can be selected using geometric resolution and host and flare color alone, demonstrating that a campaign to create a large sample of TDEs, with immediate and detailed multi-wavelength follow-up, is feasible. A by-product of this work is quantification of the power spectrum of extreme flares in AGNs.

  1. Prenatal PCBs disrupt early neuroendocrine development of the rat hypothalamus

    SciTech Connect (OSTI)

    Dickerson, Sarah M.; Cunningham, Stephanie L. [Center for Molecular and Cellular Toxicology, Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX 78712 (United States); Gore, Andrea C., E-mail: andrea.gore@mail.utexas.edu [Center for Molecular and Cellular Toxicology, Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX 78712 (United States); Institute for Neuroscience, University of Texas at Austin, Austin, TX 78712 (United States); Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712 (United States)

    2011-04-01

    Neonatal exposure to endocrine disrupting chemicals (EDCs) such as polychlorinated biphenyls (PCBs) can interfere with hormone-sensitive developmental processes, including brain sexual differentiation. We hypothesized that disruption of these processes by gestational PCB exposure would be detectable as early as the day after birth (postnatal day (P) 1) through alterations in hypothalamic gene and protein expression. Pregnant Sprague-Dawley rats were injected twice, once each on gestational days 16 and 18, with one of the following: DMSO vehicle; the industrial PCB mixture Aroclor 1221 (A1221); a reconstituted mixture of the three most prevalent congeners found in humans, PCB138, PCB153, and PCB180; or estradiol benzoate (EB). On P1, litter composition, anogenital distance (AGD), and body weight were assessed. Pups were euthanized for immunohistochemistry of estrogen receptor {alpha} (ER{alpha}) or TUNEL labeling of apoptotic cells or quantitative PCR of 48 selected genes in the preoptic area (POA). We found that treatment with EB or A1221 had a sex-specific effect on developmental apoptosis in the neonatal anteroventral periventricular nucleus (AVPV), a sexually dimorphic hypothalamic region involved in the regulation of reproductive neuroendocrine function. In this region, exposed females had increased numbers of apoptotic nuclei, whereas there was no effect of treatment in males. For ER{alpha}, EB treatment increased immunoreactive cell numbers and density in the medial preoptic nucleus (MPN) of both males and females, while A1221 and the PCB mixture had no effect. PCR analysis of gene expression in the POA identified nine genes that were significantly altered by prenatal EDC exposure, in a manner that varied by sex and treatment. These genes included brain-derived neurotrophic factor, GABA{sub B} receptors-1 and -2, IGF-1, kisspeptin receptor, NMDA receptor subunits NR2b and NR2c, prodynorphin, and TGF{alpha}. Collectively, these results suggest that the disrupted sexual differentiation of the POA by prenatal EDC exposures is already evident as early as the day after birth, effects that may change the trajectory of postnatal development and compromise adult reproductive function.

  2. Wind Resource Maps (Postcard)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01

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

  3. Mapping Miss America

    E-Print Network [OSTI]

    Short, Stephen David; Toben, David; Soener, Matt

    2011-11-16

    » Using ArcGIS create a layered thematic map for each of the EALS constructs: » Examine potential demographic and personality predictors using ArcGIS spatial statistics tools •Political Activity •Religious Conservatism •Creationist... » Using ArcGIS create a layered thematic map for each of the EALS constructs: » Examine potential demographic and personality predictors using ArcGIS spatial statistics tools •Political Activity •Religious Conservatism •Creationist...

  4. First measurements of the ion energy distribution at the divertor strike point during DIII-D disruptions

    SciTech Connect (OSTI)

    Parks, P.B.; Brooks, N.H.; West, W.P.; Wong, C.P.C. [General Atomics, San Diego, CA (United States); Bastasz, R.; Wampler, W.R. [Sandia National Labs., Albuquerque, NM (United States); Whyte, D. [Inst. National de la Recherche Scientifique, Varennes, Quebec (Canada)

    1996-03-01

    Plasma disruptions are a serious concern in tokamak design because of the high impulsive heat loads which can cause strong erosion of divertor materials due to enhanced sputtering, or melting/ablation in the most severe cases. Predictions of net erosion rates and hence component lifetimes are very difficult and are highly dependent on the plasma conditions over the divertor target. It is therefore necessary to characterize the properties of the scrape-off plasma near the divertor target plate under these special conditions. Here, plasma/wall interaction studies are being carried out using the Divertor Materials Exposure System (DiMES) on DIII-D. The objective of the experiment is to determine the kinetic energy and flux of deuterium ions reaching the divertor target during argon-induced radiative disruptions. The experiment utilizes a special slotted ion analyzer mounted over a Si sample to collect the fast charge-exchange (CX) deuterium neutrals emitted within the recycled cold neutral layer (CNL) which serves as a CX target for the incident ions. A theoretical interpretation of the experiment reveals a strong forward pitch-angle dependence in the approaching ion distribution function. The depth distribution of the trapped D in the Si sample was measured using low-energy direct recoil spectroscopy. Comparison with the TRIM code using monoenergetic ions indicated that the best fit to the data was obtained for an ion energy of 100 eV. An estimate of the CNL thickness {integral}nd{ell} indicates that during disruptions the CNL cushion is thick enough to reduce the local ion heat load by {approximately}30% due to CX refluxing.

  5. Symplectic map description of Halley's comet dynamics

    E-Print Network [OSTI]

    G. Rollin; P. Haag; J. Lages

    2015-02-02

    The main features of 1P/Halley chaotic dynamics can be described by a two dimensional symplectic map. Using Mel'nikov integral we semi-analytically determine such a map for 1P/Halley taking into account gravitational interactions from the Sun and the eight planets. We determine the Solar system kick function ie the energy transfer to 1P/Halley along one passage through the Solar system. Our procedure allows to compute for each planet its contribution to the Solar system kick function which appears to be the sum of the Keplerian potential of the planet and of a rotating circular gravitational dipole potential due to the Sun movement around Solar system barycenter. We test the robustness of the symplectic Halley map by directly integrating Newton's equations over $\\sim 2.4\\cdot 10^4$ yr around Y2K and by reconstructing the Solar system kick function. Our results show that the Halley map with fixed parameters gives a reliable description of comet dynamics on time scales of $10^4$ yr while on a larger scales the parameters of the map are slowly changing due to slow oscillations of orbital momentum.

  6. Initiation disruptor systems and methods of initiation disruption

    DOE Patents [OSTI]

    Baum, Dennis W

    2014-09-23

    A system that may be used as an initiation disruption system (IDS) according to one embodiment includes an explosive charge; a plurality of particles in a layer at least partially surrounding the explosive charge; and a fire suppressant adjacent the plurality of particles. A method for disabling an object according to one embodiment includes placing the system as recited above near an object; and causing the explosive charge to initiate, thereby applying mechanical loading to the object such that the object becomes disabled. Additional systems and methods are also presented. A device according to another embodiment includes a plurality of particles bound by a binder thereby defining a sidewall having an interior for receiving an explosive; and a fire suppressant adjacent the plurality of particles and binder. Additional systems and methods are also presented.

  7. Circularization of Tidally Disrupted Stars around Spinning Supermassive Black Holes

    E-Print Network [OSTI]

    Hayasaki, Kimitake; Loeb, Abraham

    2015-01-01

    We study the circularization of tidally disrupted stars on bound orbits around spinning supermassive black holes by performing three-dimensional smoothed particle hydrodynamic simulations with Post-Newtonian corrections. Our simulations reveal that debris circularization depends sensitively on the efficiency of radiative cooling. There are two stages in debris circularization if radiative cooling is inefficient: first, the stellar debris streams self-intersect due to relativistic apsidal precession; shocks at the intersection points thermalize orbital energy and the debris forms a geometrically thick, ring-like structure around the black hole. The ring rapidly spreads via viscous diffusion, leading to the formation of a geometrically thick accretion disk. In contrast, if radiative cooling is efficient, the stellar debris circularizes due to self-intersection shocks and forms a geometrically thin ring-like structure. In this case, the dissipated energy can be emitted during debris circularization as a precurso...

  8. Dynamics of the Disruption Halo Current Toroidal Asymmetry in NSTX

    SciTech Connect (OSTI)

    S.P. Gerhardt

    2012-09-27

    This paper describes the dynamics of disruption halo current non-axisymmetries in the lower divertor of the National Spherical Torus Experiment [M. Ono, et al. Nuclear Fusion 40, 557 (2000)]. While. The halo currents typically have a strongly asymmetric structure where they enter the divertor floor, and this asymmetry has been observed to complete up to 7 toroidal revolutions over the duration of the halo current pulse. However, the rotation speed and toroidal extend of the asymmetry can vary significantly during the pulse. The rotation speed, halo current pulse duration, and total number of revolutions tend to be smaller in cases with large halo currents. The halo current pattern is observed to become toroidally symmetric at the end of the halo current pulse. It is proposed that this symmeterization is due to the loss of most or all of the closed field line geometry in the final phase of the vertical displacement event.

  9. Automated Grid Disruption Response System: Robust Adaptive Topology Control (RATC)

    SciTech Connect (OSTI)

    2012-03-01

    GENI Project: The RATC research team is using topology control as a mechanism to improve system operations and manage disruptions within the electric grid. The grid is subject to interruption from cascading faults caused by extreme operating conditions, malicious external attacks, and intermittent electricity generation from renewable energy sources. The RATC system is capable of detecting, classifying, and responding to grid disturbances by reconfiguring the grid in order to maintain economically efficient operations while guaranteeing reliability. The RATC system would help prevent future power outages, which account for roughly $80 billion in losses for businesses and consumers each year. Minimizing the time it takes for the grid to respond to expensive interruptions will also make it easier to integrate intermittent renewable energy sources into the grid.

  10. Resilience of natural gas networks during conflicts, crises and disruptions

    E-Print Network [OSTI]

    Carvalho, Rui; Bono, Flavio; Masera, Marcelo; Arrowsmith, David K; Helbing, Dirk

    2013-01-01

    Human conflict, geopolitical crises, terrorist attacks, and natural disasters can turn large parts of energy distribution networks offline. Europe's current gas supply network is largely dependent on deliveries from Russia and North Africa, creating vulnerabililties to social and political instabilities. During crises, less delivery may mean greater congestion, as the pipeline network is used in ways it has not been designed for. Given the importance of the security of natural gas supply, we develop a model to handle network congestion on various geographical scales. We offer a resilient response strategy to energy shortages and quantify its effectiveness for a variety of relevant scenarios. In essence, Europe's gas supply can be made robust even to major supply disruptions, if a fair distribution strategy is applied.

  11. Disruption avoidance in the SINP-Tokamak by means of electrode-biasing at the plasma edge

    SciTech Connect (OSTI)

    Basu, Debjyoti [Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, WB (India) [Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, WB (India); Instituto de Ciencias Nucleares-UNAM, Mexico D.F. 04510 (Mexico); Pal, Rabindranath [Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, WB (India)] [Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, WB (India); Martinell, Julio J. [Instituto de Ciencias Nucleares-UNAM, Mexico D.F. 04510 (Mexico)] [Instituto de Ciencias Nucleares-UNAM, Mexico D.F. 04510 (Mexico); Ghosh, Joydeep; Chattopadhyay, Prabal K. [Institute for Plasma Research, Gandhinagar (India)] [Institute for Plasma Research, Gandhinagar (India)

    2013-05-15

    Control of plasma disruption by a biased edge electrode is reported in SINP-Tokamak. The features that characterize a plasma disruption are reduced with increasing bias potential. The disruption can be completely suppressed with the concomitant stabilization of observed MHD modes that are allegedly precursors of the disruption. An m = 3/n = 1 tearing mode, which apparently causes disruption can be stabilized when a negative biasing potential is applied near the edge. These changes in the disruptive behavior with edge biasing are hypothesized to be due to changes in the current density profile.

  12. International interactive

    E-Print Network [OSTI]

    Nielsen, Finn Årup

    and interact with the same visualization. The researchers can be situated anywhere on the Internet. Bibli

  13. Spatial periodicity in growth plate shear mechanical properties is disrupted by vitamin D deficiency

    E-Print Network [OSTI]

    Cohen, Itai

    Spatial periodicity in growth plate shear mechanical properties is disrupted by vitamin D modulus Vitamin D a b s t r a c t The growth plate is a highly organized section of cartilage in the long disruption caused by a dietary deficiency of vitamin D. The shear mechanical properties of the proximal

  14. Feedback Control of the National Airspace System to Mitigate Weather Disruptions

    E-Print Network [OSTI]

    Le Ny, Jerome

    Feedback Control of the National Airspace System to Mitigate Weather Disruptions Jerome Le Ny during a weather event, given a probabilistic forecast of capacities. We also address the management to weather disruptions. I. INTRODUCTION The frequent occurrence of air traffic delays in the Na- tional

  15. A Continuous-Review Inventory Model with Disruptions at Both Supplier and Retailer

    E-Print Network [OSTI]

    Snyder, Larry

    A Continuous-Review Inventory Model with Disruptions at Both Supplier and Retailer Lian Qi disruptions both internally and externally (from its supplier). We formulate the expected inventory cost the retailer to the supplier. Computational experiments provide additional insight into the problem

  16. Maps and inverse maps in open quantum dynamics

    E-Print Network [OSTI]

    Thomas F. Jordan

    2008-07-08

    Two kinds of maps that describe evolution of states of a subsystem coming from dynamics described by a unitary operator for a larger system, maps defined for fixed mean values and maps defined for fixed correlations, are found to be quite different for the same unitary dynamics in the same situation in the larger system. An affine form is used for both kinds of maps to find necessary and sufficient conditions for inverse maps. All the different maps with the same homogeneous part in their affine forms have inverses if and only if the homogeneous part does. Some of these maps are completely positive; others are not, but the homogeneous part is always completely positive. The conditions for an inverse are the same for maps that are not completely positive as for maps that are. For maps defined for fixed mean values, the homogeneous part depends only on the unitary operator for the dynamics of the larger system, not on any state or mean values or correlations. Necessary and sufficient conditions for an inverse are stated several different ways: in terms of the maps of matrices, basis matrices, density matrices, or mean values. The inverse maps are generally not tied to the dynamics the way the maps forward are. A trace-preserving completely positive map that is unital can not have an inverse that is obtained from any dynamics described by any unitary operator for any states of a larger system.

  17. Hammond's map of Cuba 

    E-Print Network [OSTI]

    C.S. Hammond & Company

    1903-01-01

    and industrial uses currently. Also, the United States wanted to assess and identi fy new data sources on a GIS format for the Mexican side. Therefore, this project produced several maps with the location of channels and ditches along the Valle de Ju...?rez Irrigati on District. This information also will support water planning of the Valle de Ju?r ez Irrigation District 009. The maps were produced from existing digital data regardi ng water resources and by adding thematic layers such as soil salinity...

  18. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport)PriceHistoricEnergy Efficiency »5MappingMapping a

  19. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport)PriceHistoricEnergy Efficiency »5MappingMapping

  20. Measurement of the rate of stellar tidal disruption flares

    SciTech Connect (OSTI)

    Van Velzen, Sjoert

    2014-09-01

    We report an observational estimate of the rate of stellar tidal disruption flares (TDFs) in inactive galaxies based on a successful search for these events among transients in galaxies using archival Sloan Digital Sky Survey (SDSS) multi-epoch imaging data (Stripe 82). This search yielded 186 nuclear flares in galaxies, 2 of which are excellent TDF candidates. Because of the systematic nature of the search, the very large number of galaxies, the long time of observation, and the fact that non-TDFs were excluded without resorting to assumptions about TDF characteristics, this study provides an unparalleled opportunity to measure the TDF rate. To compute the rate of optical stellar tidal disruption events, we simulate our entire pipeline to obtain the efficiency of detection. The rate depends on the light curves of TDFs, which are presently still poorly constrained. Using only the observed part of the SDSS light curves gives a model-independent upper limit to the optical TDF rate, N-dot <2×10{sup ?4} yr{sup ?1} galaxy{sup ?1} (90% CL), under the assumption that the SDSS TDFs are representative examples. We develop three empirical models of the light curves based on the two SDSS light curves and two more recent and better-sampled Pan-STARRS TDF light curves, leading to our best estimate of the rate: N-dot {sub TDF}=(1.5--2.0){sub ?1.3}{sup +2.7}×10{sup ?5} yr{sup ?1} galaxy{sup ?1}. We explore the modeling uncertainties by considering two theoretically motivated light curve models, as well as two different relationships between black hole mass and galaxy luminosity, and two different treatments of the cutoff in the visibility of TDFs at large M {sub BH}. From this we conclude that these sources of uncertainty are not significantly larger than the statistical ones. Our results are applicable for galaxies hosting black holes with mass in the range of a few 10{sup 6}-10{sup 8} M {sub ?}, and translates to a volumetric TDF rate of (4-8) × 10{sup –8±0.4} yr{sup –1} Mpc{sup –3}, with the statistical uncertainty in the exponent.

  1. Simulation of the Pre-Thermal Quench Stage of Disruptions During Massive Gas Injection and Projections for ITER

    E-Print Network [OSTI]

    Simulation of the Pre-Thermal Quench Stage of Disruptions During Massive Gas Injection and Projections for ITER

  2. PARKING MAP Sales Office

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    PARKING MAP BayDr. Main Entrance Parking Sales Office Main Entrance Kiosk East Remote Lot for details DMV Parking Transit Stop Traffic Signal PARTIAL OR FULL LOT CLOSURE Crown Lot 111 Kresge Lot 147M--close-in parking for undergraduate students (lot-specific) EV--charging for electric vehicles MC

  3. PARKING MAP Sales Office

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    PARKING MAP BayDr. Main Entrance Parking Sales Office Main Entrance Kiosk East Remote Lot Parking Transit Stop Traffic Signal PARTIAL OR FULL LOT CLOSURE Stevenson Lot 110 Crown Lot 111 Merrill student parking C--close-in parking for undergraduate students (lot-specific) EV--charging for electric

  4. Biomechanics Track Curriculum Map

    E-Print Network [OSTI]

    Lee, Tonghun

    Biomechanics Track Curriculum Map C MATH 221 (4) Calculus I RHET 105 (4) Principles of Composition) Bioenergetics BIOE 301 (3) Biomechanics BIOE 310 (3) Comp Tools for Bio Data BIOE 303 (2) Quant Human Physiology not graduating on time due to pre-reqs. Biomechanics Track Electives: (Fall) (Spring) (Both Semesters) · BIOE 461

  5. REGIONAL TRAVEL MAPS Philadelphia

    E-Print Network [OSTI]

    Gilchrist, James F.

    REGIONAL TRAVEL MAPS 2 hrs. 1 hr. 3 hrs. 4 hrs. 5 hrs. Philadelphia New York City Pittsburgh BostonReadingand Harrisburg 476 476 276 309 309 663 378 309 33 78 80 80 LEHIGH UNIVERSITY Bethlehem Quakertown to Philadelphia Coast including Philadelphia (50 miles south) and New York City (90 miles northeast). Bethlehem

  6. Critical Issues Geologic mapping

    E-Print Network [OSTI]

    Polly, David

    , and productive cooperation with many other organizations all combine to enhance the IGS-bed methane, and geothermal energy. The IGS's important sources of information--geologic maps, rock and core technologies of energy production, such as integrated gasification combined cycle systems and underground coal

  7. Mapping the Competitiveness

    E-Print Network [OSTI]

    Levinson, David M.

    Alberta Oil & Gas Companies Source: InnovationAtlas #12;Mapping the Midwest's Future: Regional Innovation,000 11 GDP Growth Rate 2.0% 117 Life Expectancy 81 14 Urbanization 81% 47 Source: World Bank Top exports: Crude Oil & Bitumen $81.0B Motor Vehicles & Parts $68.1B Consumer Goods $52.1B Intermediate Metal

  8. battery, map parcel, med

    E-Print Network [OSTI]

    Rosenthal, Jeffrey S.

    Attic *** book teachest Servant dictionary scarf [11] Winery demijohn battery, map AuntLair X] EastAnnex battery[4] Cupboard2 [2] mask DeadEnd rucksack AlisonWriting [16] TinyBalcony [17] gold key. [2] Need new torch battery (see [4]) to enter. Then get painting. [3] To please aunt, must move

  9. Servant dictionary battery, map

    E-Print Network [OSTI]

    Rosenthal, Jeffrey S.

    Attic *** book teachest Servant dictionary scarf [11] Winery demijohn battery, map AuntLair X] EastAnnex battery[4] Cupboard2 [2] mask DeadEnd rucksack AlisonWriting [16] TinyBalcony [17] gold key. [2] Need new torch battery (see [4]) to enter. Then get painting. [3] To please aunt, must move

  10. Some aspects of the synchronization in coupled maps

    E-Print Network [OSTI]

    Sandro E. de Souza Pinto; José T. Lunardi; Abdala M. Saleh; Antonio M. Batista

    2005-04-06

    Through numerical simulations we analyze the synchronization time and the Lyapunov dimension of a coupled map lattice consisting of a chain of chaotic logistic maps exhibiting power law interactions. From the observed behaviors we find a lower bound for the size $N$ of the lattice, independent of the range and strength of the interaction, which imposes a practical lower bound in numerical simulations for the system to be considered in the thermodynamic limit. We also observe the existence of a strong correlation between the averaged synchronization time and the Lyapunov dimension. This is an interesting result because it allows an analytical estimation of the synchronization time, which otherwise requires numerical simulations.

  11. STAR CLUSTER DISRUPTION IN THE STARBURST GALAXY MESSIER 82

    SciTech Connect (OSTI)

    Li, Shuo; Li, Chengyuan [Department of Astronomy, Peking University, Yi He Yuan Lu 5, Hai Dian District, Beijing 100871 (China); De Grijs, Richard [Kavli Institute for Astronomy and Astrophysics, Peking University, Yi He Yuan Lu 5, Hai Dian District, Beijing 100871 (China); Anders, Peter, E-mail: grijs@pku.edu.cn [Key Laboratory for Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012 (China)

    2015-01-01

    Using high-resolution, multiple-passband Hubble Space Telescope images spanning the entire optical/near-infrared wavelength range, we obtained a statistically complete U-band-selected sample of 846 extended star clusters across the disk of the nearby starburst galaxy M82. Based on a careful analysis of the clusters' spectral energy distributions, we determined their galaxy-wide age and mass distributions. The M82 clusters exhibit three clear peaks in their age distribution, thus defining relatively young, log (t yr{sup –1}) ? 7.5, intermediate-age, log (t yr{sup –1}) in [7.5, 8.5], and old samples, log (t yr{sup –1}) ? 8.5. Comparison of the completeness-corrected mass distributions offers a firm handle on the galaxy's star cluster disruption history. The most massive star clusters in the young and old samples are (almost) all concentrated in the most densely populated central region, while the intermediate-age sample's most massive clusters are more spatially dispersed, which may reflect the distribution of the highest-density gas throughout the galaxy's evolutionary history, combined with the solid-body nature of the galaxy's central region.

  12. Jet and disk luminosities in tidal disruption events

    E-Print Network [OSTI]

    Piran, Tsvi; Tchekhovskoy, Alexander

    2015-01-01

    Tidal disruption events (TDE) in which a star is devoured by a massive black hole at a galac- tic center pose a challenge to our understanding of accretion processes. Within a month the accretion rate reaches super-Eddington levels. It then drops gradually over a time scale of a year to sub-Eddington regimes. The initially geometrically thick disk becomes a thin one and eventually an ADAF at very low accretion rates. As such, TDEs explore the whole range of accretion rates and configurations. A challenging question is what the corresponding light curves of these events are. We explore numerically the disk luminosity and the conditions within the inner region of the disk using a fully general relativistic slim disk model. Those conditions determine the magnitude of the magnetic field that engulfs the black hole and this, in turn, determines the Blandford-Znajek jet power. We estimate this power in two different ways and show that they are self-consistent. We find, as expected earlier from analytic argu- ments ...

  13. SKA as a powerful hunter of jetted Tidal Disruption Events

    E-Print Network [OSTI]

    Donnarumma, I; Fender, R; Komossa, S; Paragi, Z; Van Velzen, S; Prandoni, I

    2015-01-01

    Observational consequences of the tidal disruption of stars by supermassive black holes (SMBHs) can enable us to discover quiescent SMBHs and constrain their mass function. Moreover, observing jetted TDEs (from previously non-active galaxies) provides us with a new means of studying the early phases of jet formation and evolution in an otherwise "pristine" environment. Although several (tens) TDEs have been discovered since 1999, only two jetted TDEs have been recently discovered in hard X-rays, and only one, Swift J1644+57, has a precise localization which further supports the TDE interpretation. These events alone are not sufficient to address those science issues, which require a substantial increase of the current sample. Despite the way they were discovered, the highest discovery potential for {\\em jetted} TDEs is not held by current and up-coming X-ray instruments, which will yield only a few to a few tens events per year. In fact, the best strategy is to use the Square Kilometer Array to detect TDEs an...

  14. Royal Veterinary College Guidance on employee attendance at work during periods of major travel disruption or severe weather conditions

    E-Print Network [OSTI]

    Daley, Monica A.

    disruption or severe weather conditions GUIDANCE ON EMPLOYEE ATTENDANCE AT WORK DURING PERIODS OF MAJOR TRAVEL DISRUPTION OR SEVERE WEATHER CONDITIONS 1.0 INTRODUCTION AND SCOPE 1.1 The College's expectation work and returning home during periods of severe weather or when there are major travel disruptions. 1

  15. Genomics via Optical Mapping II: Ordered Restriction Maps

    E-Print Network [OSTI]

    Mishra, Bud

    production of ordered restriction maps from individual DNA molecules. Ordered restriction maps were enzyme cleavage sites are visible as gaps that appear flanking the relaxed DNA fragments (pieces that such a restriction map created from one single DNA molecule is limited in its accuracy by the resolution

  16. Title: Ontario Base Map (OBM) [Ontario Basic Mapping] Data Creator /

    E-Print Network [OSTI]

    Title: Ontario Base Map (OBM) [Ontario Basic Mapping] Data Creator / Copyright Owner: Ontario/A Publication Date: N/A Coverage Date(s): N/A Updates: N/A Abstract: In 1975, the Ontario Basic Mapping (OBM) Program was created to provide a common geographic database for the Province of Ontario. This OBM program

  17. FEM: Feature-enhanced map

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

    Afonine, Pavel V.; Moriarty, Nigel W.; Mustyakimov, Marat; Sobolev, Oleg V.; Terwilliger, Thomas C.; Turk, Dusan; Urzhumtsev, Alexandre; Adams, Paul D.

    2015-02-26

    A method is presented that modifies a 2mFobs-DFmodel?A-weighted map such that the resulting map can strengthen a weak signal, if present, and can reduce model bias and noise. The method consists of first randomizing the starting map and filling in missing reflections using multiple methods. This is followed by restricting the map to regions with convincing density and the application of sharpening. The final map is then created by combining a series of histogram-equalized intermediate maps. In the test cases shown, the maps produced in this way are found to have increased interpretability and decreased model bias compared with themore »starting 2mFobs-DFmodel?A-weighted map.« less

  18. Alternative Water Sources Map Tool

    Broader source: Energy.gov [DOE]

    The Federal Energy Management Program created the Alternative Water Map Tool to provide information about rainwater harvesting regulations throughout the United States. FEMP designed the map to help agencies decide where to implement rainwater harvesting projects.

  19. A map of the universe

    E-Print Network [OSTI]

    2003-01-01

    Boeke, K. , Cosmic View: The Universe in 40 Jumps, John DayTime Travel in Einstein’s Universe, p 175, Houghton Mi?in,Fig. 7. — Pocket map of the universe Fig. 8a. — Map of the

  20. Algebraic entropy for algebraic maps

    E-Print Network [OSTI]

    A. N. W. Hone; O. Ragnisco; F. Zullo

    2015-08-06

    We propose an extension of the concept of algebraic entropy, as introduced by Bellon and Viallet for rational maps, to algebraic maps (or correspondences) of a certain kind. The corresponding entropy is an index of the complexity of the map. The definition inherits the basic properties from the definition of entropy for rational maps. We give an example with positive entropy, as well as two examples taken from the theory of Backlund transformations.

  1. Real-Time Traffic Maps

    E-Print Network [OSTI]

    Goldsberry, Kirk Patrick

    2007-01-01

    weather maps; they both overlay quantitatively dynamic thematic measurements atop a set of stationary geographic reference layers (base data).

  2. The disruption of nearby galaxies by the Milky Way

    E-Print Network [OSTI]

    M. E. Putman; B. K. Gibson; L. Staveley-Smith; G. Banks; D. G. Barnes; R. Bhatal; M. J. Disney; R. D. Ekers; K. C. Freeman; R. F. Haynes; P. Henning; H. Jerjen; V. Kilborn; B. Koribalski; P. Knezek; D. F. Malin; J. R. Mould; T. Oosterloo; R. M. Price; S. D. Ryder; E. M. Sadler; I. Stewart; F. Stootman; R. A. Vaile; R. L. Webster; A. E. Wright

    1998-08-04

    Interactions between galaxies are common and are an important factor in determining their physical properties such as position along the Hubble sequence and star-formation rate. There are many possible galaxy interaction mechanisms, including merging, ram-pressure stripping, gas compression, gravitational interaction and cluster tides. The relative importance of these mechanisms is often not clear, as their strength depends on poorly known parameters such as the density, extent and nature of the massive dark halos that surround galaxies. A nearby example of a galaxy interaction where the mechanism is controversial is that between our own Galaxy and two of its neighbours -- the Large and Small Magellanic Clouds. Here we present the first results of a new HI survey which provides a spectacular view of this interaction. In addition to the previously known Magellanic Stream, which trails 100 degrees behind the Clouds, the new data reveal a counter-stream which lies in the opposite direction and leads the motion of the Clouds. This result supports the gravitational model in which leading and trailing streams are tidally torn from the body of the Magellanic Clouds.

  3. Open questions: The disrupted circuitry of the cancer cell

    SciTech Connect (OSTI)

    Wiley, H. Steven

    2014-10-18

    Every new decade of biology brings with it a change in outlook driven by new technologies and fresh perspectives. Such is the case for cancer and how we consider the disease. The advent of molecular biology led to the identification of altered signaling molecules and 'oncogenes' that were proposed to drive uncontrolled cell proliferation. The rise of cell biology and new imaging and culturing technologies led to the idea that disruptions in the extracellular environment prime cells for transformation. In the current genomics era, cancer is most commonly seen as a genetic disorder where an unstable genome gives rise to a variety of different cell variants that are selected for proliferation and survival. All of these views are partially correct, of course, and are simply different ways of saying that genetic alterations in cancer cells result in a loss of growth homeostasis. They also take the view that molecular changes 'drive' a cell to grow uncontrollably, rather than tip the balance from one normal state (quiescence) to another (proliferation). Underlying this oversimplification is a profound ignorance of what controls homeostatic cell growth in the first place and how specific mutations impact it. Normal, proliferation-competent cells can accurately monitor their environment and respond appropriately to perturbation, whether it is a loss of neighbors or an inflammatory stimulus. Cancer cells either proliferate or refuse to die where and when they should not, which clearly indicates that they have problems in detecting or responding to their environment. Thus, an enormous amount of effort has gone into defining the signaling pathways that can trigger a proliferative response and the biochemical mechanisms underlying these pathways. Far less work has focused on understanding the higher-order logic of these pathways and the roles played by all of the components as part of an integrated system. In other words, we do not really understand how cells process information and make decisions and thus cannot predict how any given molecular change will alter what a cell does.

  4. Maps | 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 Fuelsof EnergyApril 2014 |Department of EnergyMapping the Frontier of

  5. Bending map and strong convergence

    E-Print Network [OSTI]

    Schlenker, Jean-Marc

    metric associates its bending measured geodesic lamination. In the present paper, we investigate someBending map and strong convergence Cyril LECUIRE May 2004 Abstract The bending map of a hyperbolic 3-manifold with boundary maps a geometrically hyper- bolic metric to its bending measured geodesic

  6. MOLECULAR DISRUPTIONS OF THE PANGLIAL SYNCYTIUM BLOCK POTASSIUM SIPHONING AND AXONAL SALTATORY CONDUCTION

    E-Print Network [OSTI]

    Rash, John E.

    REVIEW MOLECULAR DISRUPTIONS OF THE PANGLIAL SYNCYTIUM BLOCK POTASSIUM SIPHONING AND AXONAL- sium siphoning," a process originally proposed to explain astro- cytic sequestration and long that established the concept of potassium siphoning in unmyeli- nated CNS axons, summarize recent revolutions

  7. Public Affairs Policy and Planning Requirements for a Fuel Supply Disruption Emergency

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1992-06-08

    To establish responsibilities and requirements for Department of Energy (DOE) public affairs actions in the case of fuel supply disruption emergency. Cancels DOE 5500.5. Canceled by DOE O 151.1 of 9-25-95.

  8. Vehicle Technologies Office Merit Review 2015: A Disruptive Approach to Electric Vehicle Power Electronics

    Broader source: Energy.gov [DOE]

    Presentation given by U of Colorado at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about a disruptive approach to...

  9. Children's achievement goals, attitudes, and disruptive behaviors in an after-school physical activity program 

    E-Print Network [OSTI]

    Agbuga, Bulent

    2007-09-17

    CHILDREN’S ACHIEVEMENT GOALS, ATTITUDES, AND DISRUPTIVE BEHAVIORS IN AN AFTER­SCHOOL PHYSICAL ACTIVITY PROGRAM A Dissertation by BULENT AGBUGA Submitted... to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May207 Major Subject: Kinesiology CHILDREN’S ACHIEVEMENT GOALS, ATTITUDES, AND DISRUPTIVE BEHAVIORS IN AN AFTER­SCHOOL PHYSICAL ACTIVITY PROGRAM A Dissertation by BULENT AGBUGA Submitted...

  10. Gas Jet Disruption Mitigation Studies on Alcator C-Mod and DIII-D

    E-Print Network [OSTI]

    Gas Jet Disruption Mitigation Studies on Alcator C-Mod and DIII-D R.S. Granetz1, E.M. Hollmann2, D-pressure noble gas jet High-pressure noble gas jets can mitigate 3 problems arising from disruptions, without molybdenum Be, W, C #12;Specific goals of these DIII-D and C-Mod gas jet experiments · Determine penetration

  11. Preliminary Failure Modes and Effects Analysis of the US Massive Gas Injection Disruption Mitigation System Design

    SciTech Connect (OSTI)

    Lee C. Cadwallader

    2013-10-01

    This report presents the results of a preliminary failure modes and effects analysis (FMEA) of a candidate design for the ITER Disruption Mitigation System. This candidate is the Massive Gas Injection System that provides machine protection in a plasma disruption event. The FMEA was quantified with “generic” component failure rate data as well as some data calculated from operating facilities, and the failure events were ranked for their criticality to system operation.

  12. Parametric analysis of the thermal effects on the divertor in tokamaks during plasma disruptions

    SciTech Connect (OSTI)

    Bruhn, M.L.

    1988-04-01

    Plasma disruptions are an ever present danger to the plasma-facing components in today's tokamak fusion reactors. This threat results from our lack of understanding and limited ability to control this complex phenomenon. In particular, severe energy deposition occurs on the divertor component of the double-null configured tokamak reactor during such disruptions. A hybrid computational model developed to estimate and graphically illustrate global thermal effects of disruptions on the divertor plates is described in detail. The quasi-two-dimensional computer code, TADDPAK (Thermal Analysis Divertor during Disruptions PAcKage), is used to conduct parametric analysis for the TIBER II Tokamak Engineering Test Reactor Design. The dependence of these thermal effects on divertor material choice, disruption pulse length, disruption pulse shape, and the characteristic thickness of the plasma scrape-off layer is investigated for this reactor design. Results and conclusions from this analysis are presented. Improvements to this model and issues that require further investigation are discussed. Cursory analysis for ITER (International Thermonuclear Experimental Reactor) is also presented in the appendix. 75 refs., 49 figs., 10 tabs.

  13. Eastern Seaboard Electric Grid Fragility Maps Supporting Persistent Availability

    SciTech Connect (OSTI)

    Walker, Kimberly A; Weigand, Gilbert G; Fernandez, Steven J

    2012-11-01

    Persistently available power transmission can be disrupted by weather causing power outages with economic and social consequences. This research investigated the effects on the national power grid from a specific weather event, Hurricane Irene, that caused approximately 5.7 million customer power outages along the Eastern Seaboard in August of 2011. The objective was to describe the geographic differences in the grid s vulnerability to these events. Individual factors, such as wind speed or precipitation, were correlated with the number of outages to determine the greatest mechanism of power failure in hopes of strengthening the future power grid. The resulting fragility maps not only depicted 18 counties that were less robust than the design-standard robustness model and three counties that were more robust, but also drew new damage contours with correlated wind speeds and county features.

  14. Solar Career Map | Department of Energy

    Office of Environmental Management (EM)

    Solar Career Map Solar Career Map Solar Career Map Use the Solar Career Map to explore 40 Jobs across 4 industry sectors, and identify more than 60 routes to advancement between...

  15. Open questions: The disrupted circuitry of the cancer cell

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

    Wiley, H. Steven

    2014-10-18

    Every new decade of biology brings with it a change in outlook driven by new technologies and fresh perspectives. Such is the case for cancer and how we consider the disease. The advent of molecular biology led to the identification of altered signaling molecules and 'oncogenes' that were proposed to drive uncontrolled cell proliferation. The rise of cell biology and new imaging and culturing technologies led to the idea that disruptions in the extracellular environment prime cells for transformation. In the current genomics era, cancer is most commonly seen as a genetic disorder where an unstable genome gives rise tomore »a variety of different cell variants that are selected for proliferation and survival. All of these views are partially correct, of course, and are simply different ways of saying that genetic alterations in cancer cells result in a loss of growth homeostasis. They also take the view that molecular changes 'drive' a cell to grow uncontrollably, rather than tip the balance from one normal state (quiescence) to another (proliferation). Underlying this oversimplification is a profound ignorance of what controls homeostatic cell growth in the first place and how specific mutations impact it. Normal, proliferation-competent cells can accurately monitor their environment and respond appropriately to perturbation, whether it is a loss of neighbors or an inflammatory stimulus. Cancer cells either proliferate or refuse to die where and when they should not, which clearly indicates that they have problems in detecting or responding to their environment. Thus, an enormous amount of effort has gone into defining the signaling pathways that can trigger a proliferative response and the biochemical mechanisms underlying these pathways. Far less work has focused on understanding the higher-order logic of these pathways and the roles played by all of the components as part of an integrated system. In other words, we do not really understand how cells process information and make decisions and thus cannot predict how any given molecular change will alter what a cell does.« less

  16. 2015 no.6. March 27 Interactive map Radboud University, great

    E-Print Network [OSTI]

    the National Library and Archive of Vanuatu have reported that they are all safe. The Library and Archives to help the libraries in Vanuatu rebuild collections click here for more information. National Digital contribution to Design the Library of the future from Erin Gallant Tama Art University Library in Tokyo

  17. Interactive Map Shows Geothermal Resources | Department of Energy

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

    into steam to turn electric turbines. Unlike other sources of renewable energy with a low carbon footprint, such as solar or wind energy, it runs around the clock. There are 3.2...

  18. REN21 Renewables Interactive Map | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/Water Use/NevadaaTools < RAPID79.14SiliconGlossaryREN

  19. Top 5 Interactives and Maps of 2015 | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And StatisticsProgram Manager Directoryof Energy Think Outside the Box10Mostof

  20. REN21 Renewables Interactive Map | Open Energy Information

    Open Energy Info (EERE)

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

  1. Annual Monitoring Report Interactive Map | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A S Jump to:Angola on the Lake, NewJumpAnnouncing

  2. Africa Infrastructure Country Diagnostic Documents: Interactive MAP in PDF,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar EnergyAerodynall Countries | Open Energy Information

  3. Mapping Biomass Distribution Potential

    E-Print Network [OSTI]

    Schaetzel, Michael

    2010-11-18

    stream_size 1487 stream_content_type text/plain stream_name ku_gis_day_2010_schaetzel.pdf.txt stream_source_info ku_gis_day_2010_schaetzel.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8 Mapping Biomass... Distribution Potential Michael Schaetzel Undergraduate ? Environmental Studies ? University of Kansas L O C A T S I O N BIOMASS ENERGY POTENTIAL o According to DOE, Biomass has the potential to provide 14% of the nation’s power o Currently 1% of...

  4. Site Map - Cyclotron Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment Top Scientific ImpactTechnologies |Site IndexSite MapSite

  5. NREL: MapSearch

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial Toolkit The GeospatialSolar Energy The(35.93 N,

  6. Directions & Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HAB PacketDiesel prices continueDileepDirections & Maps Directions

  7. MAP | Open Energy Information

    Open Energy Info (EERE)

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

  8. Site Map | Geothermal

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding access toSmallTechnicalSheldon Glashow and the ElectroweakSite Map

  9. Map to CAMD

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion toMSDS onBudget || Department ofDubey selectedMap

  10. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion toMSDS onBudget || DepartmentMapping the Nanoscale

  11. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion toMSDS onBudget || DepartmentMapping the

  12. Research Portfolio Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultiday Production of SOA inResearch Portfolio Map Welcome to the

  13. Maps | 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 Fuelsof EnergyApril 2014 |Department of EnergyMapping the Frontier of NewNEUP

  14. Site Map | DOEpatents

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|Sensitive Species3 Outlook forSimulationsSite Map TUNL pdf'sSite

  15. Site Monitoring Area Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|Sensitive Species3 Outlook forSimulationsSite Map TUNLMaps

  16. Defect mapping system

    DOE Patents [OSTI]

    Sopori, B.L.

    1995-04-11

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

  17. Interactive Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenryInhibitingInteractive Jobs Interactive Jobs To run an interactive

  18. MATCHKiosk: A Multimodal Interactive City Guide Michael Johnston

    E-Print Network [OSTI]

    stations, directions and maps in car rental offices, interactive tourist and vis- itor guides in tourist collection in an AT&T facility in Wash- ington, D.C. where it provides visitors with infor- mation about

  19. developments. interactive

    E-Print Network [OSTI]

    Jaun, André

    interactive course: ffl web­pages for hyper­linked lecture notes, student exercises and projects, ffl java teachers: ffl public on the web y : lecture notes including the JBONE applet, ffl on demand: source Java

  20. On the harmonic map equation

    E-Print Network [OSTI]

    S. C. Tiwari

    2007-06-09

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

  1. Breaking Points in Quartic Maps

    E-Print Network [OSTI]

    M. Romera; G. Pastor; M. -F. Danca; A. Martin; A. B. Orue; F. Montoya

    2014-12-18

    Dynamical systems, whether continuous or discrete, are used by physicists in order to study non-linear phenomena. In the case of discrete dynamical systems, one of the most used is the quadratic map depending on a parameter. However, some phenomena can depend alternatively of two values of the same parameter. We use the quadratic map $x_{n+1} =1-ax_{n}^{2} $ when the parameter alternates between two values during the iteration process. In this case, the orbit of the alternate system is the sum of the orbits of two quartic maps. The bifurcation diagrams of these maps present breaking points where abruptly change their evolution.

  2. Real-Time Traffic Maps

    E-Print Network [OSTI]

    Goldsberry, Kirk Patrick

    2007-01-01

    Philosophy in Geography by Kirk Patrick Goldsberry Committee2007 The dissertation of Kirk Patrick Goldsberry isTraffic Maps Copyright © 2007 by Kirk Patrick Goldsberry iii

  3. Ultra-Close Encounters of Stars With Massive Black Holes: Tidal Disruption Events With Prompt Hyperaccretion

    E-Print Network [OSTI]

    Christopher Evans; Pablo Laguna; Michael Eracleous

    2015-06-01

    A bright flare from a galactic nucleus followed at late times by a $t^{-5/3}$ decay in luminosity is often considered the signature of the complete tidal disruption of a star by a massive black hole. The flare and power-law decay are produced when the stream of bound debris returns to the black hole, self-intersects, and eventually forms an accretion disk or torus. In the canonical scenario of a solar-type star disrupted by a $10^{6}\\; M_\\odot$ black hole, the time between the disruption of the star and the formation of the accretion torus could be years. We present fully general relativistic simulations of a new class of tidal disruption events involving ultra-close encounters of solar-type stars with intermediate mass black holes. In these encounters, a thick disk forms promptly after disruption, on timescales of hours. After a brief initial flare, the accretion rate remains steady and highly super-Eddington for a few days at $\\sim 10^2\\,M_\\odot\\,{\\rm yr}^{-1}$.

  4. The 2mrad Crossing Angle Interaction Region and Extraction Line

    SciTech Connect (OSTI)

    Appleby, R.; U., Manchester; Angal-Kalinin, D.; Dadoun, O.; Bambade, P.; Parker, B.; Keller, L.; Moffeit, K.; Nosochkov, Y.; Seryi, A.; Spencer, C.; Carter, J.; Royal Holloway, U.of London; Napoly, O.; /DAPNIA, Saclay

    2006-07-12

    A complete optics design for the 2mrad crossing angle interaction region and extraction line was presented at Snowmass 2005. Since this time, the design task force has been working on developing and improving the performance of the extraction line. The work has focused on optimizing the final doublet parameters and on reducing the power losses resulting from the disrupted beam transport. In this paper, the most recent status of the 2mrad layout and the corresponding performance are presented.

  5. Central American geologic map project

    SciTech Connect (OSTI)

    Dengo, G.

    1986-07-01

    During the Northeast Quadrant Panel meeting of the Circum-Pacific Map Project held in Mexico City, February 1985, Central American panel members proposed and adopted plans for compiling a geologic map of Central America, probably at a scale of 1:500,000. A local group with participants from each country was organized and coordinated by Rolando Castillo, director, Central American School of Geology, University of Costa Rica, for the geologic aspects, and Fernando Rudin, director, Geographic Institute of Costa Rica, for the topographic base. In 1956, the US Geological Survey published a geologic map of the region at a scale of 1:1 million. Subsequent topographic and geologic mapping projects have provided a large amount of new data. The entire area is now covered by topographic maps at a scale of 1:50,000, and these maps have been used in several countries as a base for geologic mapping. Another regional map, the Metallogenic Map of Central America (scale = 1:2 million), was published in 1969 by the Central American Research Institute for Industry (ICAITI) with a generalized but updated geologic base map. Between 1969 and 1980, maps for each country were published by local institutions: Guatemala-Belize at 1:500,000, Honduras at 1:500,000, El Salvador at 1:100,000, Nicaragua at 1:1 million, Costa Rica at 1:200,000, and Panama at 1:1 million. This information, in addition to that of newly mapped areas, served as the base for the Central American part of the Geologic-Tectonic Map of the Caribbean Region (scale = 1:2.5 million), published by the US Geological Survey in 1980, and also fro the Northeast Quadrant Maps of the Circum-Pacific Region. The new project also involves bathymetric and geologic mapping of the Pacific and Caribbean margins of the Central American Isthmus. A substantial amount of new information of the Middle America Trench has been acquired through DSDP Legs 67 and 84.

  6. National Mapping Program Technical Instructions

    E-Print Network [OSTI]

    Janée, Greg

    National Mapping Program Technical Instructions Standards for Digital Orthophotos U. S. Department quadrangle (DOQ) header, revise technical standards for overedge imagery, and include color-infrared and true of the Interior U.S. Geological Survey National Mapping Division #12;Standards for Digital Orthophotos 12/96 ii

  7. ALGORITHMS FOR CONSTRUCTING COMPARATIVE MAPS

    E-Print Network [OSTI]

    Kleinberg, Jon

    (i.e. that the segments are homeologous). The construction of comparative maps between the genomes and phylogenetic relationships among species as well as fundamental principles of genome evolution. Comparative maps allow us to use structural and functional information about one genome to make predictions about

  8. The Theory of the Kink Mode during the Vertical Disruption Events in Tokamaks

    SciTech Connect (OSTI)

    Leonid E. Zakharov

    2008-01-14

    This paper explains the locked m/n = 1/1 kink mode during the vertical disruption event when the plasma has an electrical contact with the plasma facing conducting surfaces. It is shown that the kink perturbation can be in equilibrium state even with a stable safety factor q > 1, if the halo currents, excited by the kink mode, can flow through the conducting structure. This suggests a new explanation of the so-called sideway forces on the tokamak in-vessel components during the disruption event. __________________________________________________

  9. Detection of Gravitational Wave Emission by Supermassive Black Hole Binaries Through Tidal Disruption Flares

    E-Print Network [OSTI]

    Hayasaki, Kimitake

    2015-01-01

    Galaxy mergers produce binaries of supermassive black holes, which emit gravitational waves prior to their coalescence. We perform three-dimensional hydrodynamic simulations to study the tidal disruption of stars by such a binary in the final centuries of its life. We find that the gas stream of the stellar debris moves chaotically in the binary potential and forms accretion disks around both black holes. The accretion light curve is modulated over the binary orbital period owing to relativistic beaming. This periodic signal allows to detect the decay of the binary orbit due to gravitational wave emission by observing two tidal disruption events that are separated by more than a decade.

  10. Electromagnetic Analysis For The Design Of ITER Diagnostic Port Plugs During Plasma Disruptions

    SciTech Connect (OSTI)

    Zhai, Y

    2014-03-03

    ITER diagnostic port plugs perform many functions including structural support of diagnostic systems under high electromagnetic loads while allowing for diagnostic access to plasma. The design of diagnotic equatorial port plugs (EPP) are largely driven by electromagnetic loads and associate response of EPP structure during plasma disruptions and VDEs. This paper summarizes results of transient electromagnetic analysis using Opera 3d in support of the design activities for ITER diagnostic EPP. A complete distribution of disruption loads on the Diagnostic First Walls (DFWs). Diagnostic Shield Modules (DSMs) and the EPP structure, as well as impact on the system design integration due to electrical contact among various EPP structural components are discussed.

  11. SRB distribution for Anosov maps Giovanni Gallavotti

    E-Print Network [OSTI]

    Roma "La Sapienza", Università di

    1 SRB distribution for Anosov maps Giovanni Gallavotti Fisica Roma 1, I.N.F.N. Abstract: Two lectures on the construction of the SRB distributions for Anosov maps 1. Anosov maps and Gibbs distributions. Anosov maps are the paradigm of systems with chaotic evolution. Here I consider only smooth maps

  12. Brain Surface Conformal Mapping and Brain VolumetricBrain Surface Conformal Mapping and Brain Volumetric Harmonic Map withHarmonic Map with VariationalVariational MethodsMethods

    E-Print Network [OSTI]

    Brain Surface Conformal Mapping and Brain VolumetricBrain Surface Conformal Mapping and Brain Volumetric Harmonic Map withHarmonic Map with VariationalVariational MethodsMethods YalinYalin WangWang11 to the cortical surface matching problem. We further extended the algorithm to find a 3D volumetric harmonic map

  13. Interactive Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenryInhibiting IndividualIntegratingInstituteInteractiveInteractive

  14. A hazard of open quantum dynamics: Markov approximations encounter map domains

    E-Print Network [OSTI]

    Thomas F. Jordan; Anil Shaji; E. C. G. Sudarshan

    2008-01-23

    A Markov approximation in open quantum dynamics can give unphysical results when a map acts on a state that is not in its domain. This is examined here in a simple example, an open quantum dynamics for one qubit in a system of two interacting qubits, for which the map domains have been described quite completely. A time interval is split into two parts and the map from the exact dynamics for the entire interval is replaced by the conjunction of that same map for both parts. If there is any correlation between the two qubits, unphysical results can appear as soon as the map conjunction is used, even for infinitesimal times. If the map is repeated an unlimited number of times, every state is at risk of being taken outside the bounds of physical meaning. Treatment by slippage of initial conditions is discussed.

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

    Open Energy Info (EERE)

    and with data-capture methods to allow mapping to fit the needs of the project. Field testing has shown the hardware-software systems to be effective field-based solutions for...

  16. Mapping (USPTO) Patent Data using Overlays to Google Maps

    E-Print Network [OSTI]

    Leydesdorff, Loet

    2011-01-01

    The paper describes a technique to use patent information available online (at the US Patent and Trademark Office) for the generation of Google Maps that indicate both the quantity and quality of patents granted at the city level. The resulting maps are relevant for technological innovation policies and R&D management because the US market can be considered as the leading market for patenting and patent competition. Quantitative data is made available by the mapping routines for more detailed statistical analysis, and the non-parametric statistics for significance testing are specified. The new mapping approach is explored for the cases of the emerging technologies of "RNA interference" and "nanotechnology" as specific examples. Perspectives for further developments of this technique (other databases and network analysis of co-inventions) are specified.

  17. Mappings of Conjugation of Quaternion Algebra

    E-Print Network [OSTI]

    Aleks Kleyn

    2012-06-10

    In the paper I considered mappings of conjugation of quaternion algebra. I proved the theorem that there is unique expansion of R-linear mapping of quaternion algebra relative to the given set of mappings of conjugation.

  18. Plasma Fueling ProgramPWF/LJET 5/10/2000 Review Page 1 Liquid Jets for Disruption Control

    E-Print Network [OSTI]

    Plasma Fueling ProgramPWF/LJET 5/10/2000 Review Page 1 Liquid Jets for Disruption Control P. W Page 2 Liquid Jets for Fast Plasma Termination · P. B. Parks, M. N. Rosenbluth, S. V. Putvinski, and T. E. Evans, "High-Velocity Liquid Jet Injection into Tokamak Plasmas for Disruption Mitigation

  19. DESICCATION PROTECTION AND DISRUPTION: A TRADE-OFF FOR AN INTERTIDAL MARINE ALGA1

    E-Print Network [OSTI]

    Denny, Mark

    DESICCATION PROTECTION AND DISRUPTION: A TRADE-OFF FOR AN INTERTIDAL MARINE ALGA1 Luke J. H. Hunt2, California 93950, USA For marine algae, the benefits of drying out are often overshadowed by the stresses of desiccation in the intertidal turf alga Endocladia muricata (Endlichter) J. Agardh. Laboratory experiments

  20. Hazard/Risk Assessment SOURCES OF ENDOCRINE-DISRUPTING COMPOUNDS IN NORTH CAROLINA WATERWAYS

    E-Print Network [OSTI]

    Kwak, Thomas J.

    Hazard/Risk Assessment SOURCES OF ENDOCRINE-DISRUPTING COMPOUNDS IN NORTH CAROLINA WATERWAYSDepartment of Applied Ecology, North Carolina State University, Raleigh, North Carolina zDepartment of Biological Sciences,, Program in Environmental & Molecular Toxicology, North Carolina State University, Raleigh, North

  1. Modeling of Supply Chain Risk Under Disruptions with Performance Measurement and Robustness Analysis

    E-Print Network [OSTI]

    Nagurney, Anna

    . The model formulation captures supply- side risk as well as demand-side risk, along with uncertainty supply-side disruption risks, transportation and other cost risks, and demand-side uncertainty within, the focus of research has been on "demand-side" risk, which is related to fluctuations in the demand

  2. Damage to nearby divertor components of ITER-like devices during giant ELMs and disruptions

    E-Print Network [OSTI]

    Harilal, S. S.

    Damage to nearby divertor components of ITER-like devices during giant ELMs and disruptions. Fusion 50 (2010) 115004 (7pp) doi:10.1088/0029-5515/50/11/115004 Damage to nearby divertor components. The simulation results of the integrated modelling indicate a significant potential damage of the divertor nearby

  3. Sex-specific epigenetic disruption and behavioral changes following low-dose in utero bisphenol

    E-Print Network [OSTI]

    Champagne, Frances A.

    Sex-specific epigenetic disruption and behavioral changes following low-dose in utero bisphenol, and approved April 25, 2013 (received for review August 15, 2012) Bisphenol A (BPA) is an estrogenic endocrine Bisphenol A (BPA) is an estrogenic endocrine disruptor widely used in the production of plastics and found

  4. Dim light at night disrupts the short-day response in Siberian hamsters Tomoko Ikeno

    E-Print Network [OSTI]

    Nelson, Randy J.

    Light pollution Pelage Immune function a b s t r a c t Photoperiodic regulation of physiologyDim light at night disrupts the short-day response in Siberian hamsters Tomoko Ikeno , Zachary M of melatonin under the control of a circadian clock. How- ever, artificial light at night caused by recent

  5. Focal Brain Lesions to Critical Locations Cause Widespread Disruption of the Modular Organization of the Brain

    E-Print Network [OSTI]

    Focal Brain Lesions to Critical Locations Cause Widespread Disruption of the Modular Organization of the Brain Caterina Gratton*, Emi M. Nomura*, Fernando Pérez, and Mark DEsposito Abstract Although it is generally assumed that brain damage pre- dominantly affects only the function of the damaged region, here we

  6. Familial Parkinson's Disease-associated L166P Mutation Disrupts DJ-1 Protein Folding and Function*

    E-Print Network [OSTI]

    Li, Lian

    Familial Parkinson's Disease-associated L166P Mutation Disrupts DJ-1 Protein Folding and Function by which loss-of-function mutations in DJ-1 lead to Par- kinson's disease. Parkinson's disease (PD)1 of this devastating disease. Recent evidence indi- cates that at least 10 distinct genetic loci, PARK1­PARK10

  7. Erosion Damage of Nearby Plasma-Facing Components during a Disruption on the Divertor Plate*

    E-Print Network [OSTI]

    Harilal, S. S.

    . Government rerains a nonexclusive. royalty-free license m publish or reproduce the published form.S. Department of Energy and by the Ministry of Atomic Energy and tndustry, Russia. Presented at the 19th Research, Moscow Region. 142092Russia Intense energy flow from the disrupting plasma during a thermal

  8. Intra-amygdala infusion of the protein kinase Mzeta inhibitor ZIP disrupts foreground context fear memory

    E-Print Network [OSTI]

    Helmstetter, Fred J.

    Intra-amygdala infusion of the protein kinase Mzeta inhibitor ZIP disrupts foreground context fear-pseudosubstrate inhibitory peptide (ZIP) remains in the brain after infusion. Here, we demon- strate that foreground context the brain by 24 h after infusion. These data contribute to a growing body of lit- erature that demonstrates

  9. Multi-Layer Network Recovery: Avoiding Traffic Disruptions against Fiber Failures

    E-Print Network [OSTI]

    Ortega, Eusebi Calle

    Multi-Layer Network Recovery: Avoiding Traffic Disruptions against Fiber Failures Anna Urra, Eusebi 17071, Spain Abstract. The next generation backbone networks, optical IP/MPLS networks, enable increasingly higher volumes of information to be trans- ported. In this network architecture, a fiber failure

  10. Targeted mutation of the calbindin D28K gene disrupts circadian rhythmicity and entrainment

    E-Print Network [OSTI]

    Silver, Rae

    Targeted mutation of the calbindin D28K gene disrupts circadian rhythmicity and entrainment Lance J explored the role of CalB in modulating circadian function and photic entrainment by investigating miceB) / ) mice exhibit anomalies in entrainment revealed following transfer from a light : dark cycle to DD

  11. Avoidance of Tearing Mode Locking and Disruption with Electro-Magnetic Torque Introduced by Feedback-based Mode Rotation Control in DIII-D and RFX-mod

    SciTech Connect (OSTI)

    Okabayashi, M. [PPPL; Zanca, P. [Euratom-ENEA; Strait, E. J. [General Atomics

    2014-09-01

    Disruptions caused by tearing modes (TMs) are considered to be one of the most critical roadblocks to achieving reliable, steady-state operation of tokamak fusion reactors. Here we have demonstrated a very promising scheme to avoid such disruptions by utilizing the electro-magnetic (EM) torque produced with 3D coils that are available in many tokamaks. In this scheme, the EM torque to the modes is created by a toroidal phase shift between the externally-applied field and the excited TM fields, compensating for the mode momentum loss due to the interaction with the resistive wall and uncorrected error fields. Fine control of torque balance is provided by a feedback scheme. We have explored this approach in two vastly different devices and plasma conditions: DIII-D and RFX-mod operated in tokamak mode. In DIII-D, the plasma target was high ?N plasmas in a non-circular divertor tokamak. In RFX-mod, the plasma was ohmically-heated plasma with ultralow safety factor in a circular limiter discharge of active feedback coils outside the thick resistive shell. The DIII-D and RFX-mod experiments showed remarkable consistency with theoretical predictions of torque balance. The application to ignition-oriented devices such as International Thermonuclear Experimental Reactor (ITER) would expand the horizon of its operational regime. The internal 3D coil set currently under consideration for edge localized mode suppression in ITER would be well suited to this purpose.

  12. Mapping Particle Charges in Battery Electrodes

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

    Mapping Particle Charges in Battery Electrodes Mapping Particle Charges in Battery Electrodes Print Friday, 26 July 2013 14:18 The deceivingly simple appearance of batteries masks...

  13. A map of the universe

    SciTech Connect (OSTI)

    Gott III, J. Richard; Juric, Mario; Schlegel, David; Hoyle, Fiona; Vogeley, Michael; Tegmark, Max; Bahcall, Neta; Brinkmann, Jon

    2003-10-20

    We have produced a new conformal map of the universe illustrating recent discoveries, ranging from Kuiper belt objects in the Solar system, to the galaxies and quasars from the Sloan Digital Sky Survey. This map projection, based on the logarithm map of the complex plane, preserves shapes locally, and yet is able to display the entire range of astronomical scales from the Earth s neighborhood to the cosmic microwave background. The conformal nature of the projection, preserving shapes locally, may be of particular use for analyzing large scale structure. Prominent in the map is a Sloan Great Wall of galaxies 1.37 billion light years long, 80 percent longer than the Great Wall discovered by Geller and Huchra and therefore the largest observed structure in the universe.

  14. Texture mapping using tiled textures 

    E-Print Network [OSTI]

    Kaur, Avneet

    2004-09-30

    This thesis work presents a simple and practical technique for seamlessly texturing quadrilateral meshes. Using this technique, an isotropic homogeneous texture can be mapped to any quadrilateral mesh without any discontinuity or singularity...

  15. MAPPING CLIMATE CHANGE EXPOSURES, VULNERABILITIES,

    E-Print Network [OSTI]

    MAPPING CLIMATE CHANGE EXPOSURES, VULNERABILITIES, AND ADAPTATION TO PUBLIC HEALTH RISKS's California Climate Change Center JULY 2012 CEC5002012041 Prepared for: California Energy Commission of California. #12; ii ABSTRACT This study reviewed first available frameworks for climate change adaptation

  16. Protein folding using contact maps

    E-Print Network [OSTI]

    Michele Vendruscolo; Eytan Domany

    1999-01-21

    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.

  17. Measuring the Monitoring User Interactive Experiences on Franklin Interactive Nodes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELING CLOUD1 H( 7MeasurementsInteractive

  18. Boson mappings applied to the two-color delta model

    SciTech Connect (OSTI)

    Dukelsky, J. (Departamento de Fisica Teorica, Universidad Autonoma de Madrid, 28049 Madrid (Spain)); Pittel, S. (Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States))

    1992-04-01

    We study several aspects of a two-color delta model of interacting quarks, with the purpose of extracting information of relevance to real quark models of nuclei. We first describe a BCS treatment of the quark pair correlations that arise in the model at low densities and demonstrate that the rms radius of the dominant correlated pairs increases in the presence of the medium. We then consider the application of a Dyson boson mapping to the model and show that it incorporates, at the level of the Hartree-Bose approximation, the pair clustering dynamics of quark BCS. However, the collective bosons that emerge do not have the same structure as the correlated BCS pairs. The mapping also leads to a short-range repulsive interaction between the collective bosons, which we derive in both momentum and coordinate space. The additional correlations that result from this repulsive boson interaction can in principle be incorporated through a Brueckner treatment of the mapped boson Hamiltonian.

  19. Interactive Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenryInhibiting IndividualIntegratingInstituteInteractive Jobs

  20. Interactive Jobs

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenryInhibiting IndividualIntegratingInstituteInteractive

  1. POSSIBLE ORIGIN OF THE G2 CLOUD FROM THE TIDAL DISRUPTION OF A KNOWN GIANT STAR BY SGR A*

    SciTech Connect (OSTI)

    Guillochon, James; Loeb, Abraham [Harvard-Smithsonian Center for Astrophysics, The Institute for Theory and Computation, 60 Garden Street, Cambridge, MA 02138 (United States); MacLeod, Morgan; Ramirez-Ruiz, Enrico, E-mail: jguillochon@cfa.harvard.edu [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)

    2014-05-10

    The discovery of the gas cloud G2 on a near-radial orbit about Sgr A* has prompted much speculation on its origin. In this Letter, we propose that G2 formed out of the debris stream produced by the removal of mass from the outer envelope of a nearby giant star. We perform hydrodynamical simulations of the returning tidal debris stream with cooling and find that the stream condenses into clumps that fall periodically onto Sgr A*. We propose that one of these clumps is the observed G2 cloud, with the rest of the stream being detectable at lower Br? emissivity along a trajectory that would trace from G2 to the star that was partially disrupted. By simultaneously fitting the orbits of S2, G2, and ?2000 candidate stars, and by fixing the orbital plane of each candidate star to G2 (as is expected for a tidal disruption), we find that several stars have orbits that are compatible with the notion that one of them was tidally disrupted to produce G2. If one of these stars were indeed disrupted, it last encountered Sgr A* hundreds of years ago and has likely encountered Sgr A* repeatedly. However, while these stars are compatible with the giant disruption scenario given their measured positions and proper motions, their radial velocities are currently unknown. If one of these stars' radial velocity is measured to be compatible with a disruptive orbit, it would strongly suggest that its disruption produced G2.

  2. Siegel disk for complexified Henon map

    E-Print Network [OSTI]

    O. B. Isaeva; S. P. Kuznetsov

    2008-04-26

    It is shown that critical phenomena associated with Siegel disk, intrinsic to 1D complex analytical maps, survives in 2D complex invertible dissipative H\\'{e}non map. Special numerical method of estimation of the Siegel disk scaling center position (for 1D maps it corresponds to extremum) for multi-dimensional invertible maps are developed.

  3. Continuity of the bending map Cyril LECUIRE

    E-Print Network [OSTI]

    Schlenker, Jean-Marc

    Continuity of the bending map Cyril LECUIRE May 2004 Abstract The bending map of a hyperbolic 3-manifold maps a convex cocompact hyperbolic metric on a hyperbolic 3-manifold with boundary to its bending measured geodesic lamination. As proved in [KeS] and [KaT], this map is continuous. In the present paper we

  4. Before Mapping After Mapping Area Power Area Delay Power

    E-Print Network [OSTI]

    Pedram, Massoud

    32 Exam- ples Before Mapping After Mapping Area Power Area Delay Power 5xp1 0.93 0.98 0.86 0.82 0 1.01 1.01 1.02 1.07 0.99 duke2 1.01 1.01 0.99 1.13 0.97 e64 1.00 0.51 0.83 1.16 0.50 ex5 0.99 0.89 0.99 0.92 0.96 1.05 0.90 Table 2: Area, delay and power statistics for power script (normalized

  5. Radiometer System to Map the Cosmic Background Radiation

    E-Print Network [OSTI]

    Gorenstein, Marc V.; Muller, Richard A.; Smoot, George F.; Tyson, J. Anthony

    1977-01-01

    SYSTEM TO MAP THE COSMIC BACKGROUND RADIATION RECEIVEDSystem to Map the Cosmic Background Radiation* Marc V.

  6. Tidal Disruption Flares as the Source of Ultra-high Energy Cosmic Rays

    E-Print Network [OSTI]

    Glennys R. Farrar

    2012-10-03

    The optical spectral energy distributions of two tidal disruption flares identified by van Velzen et al. (2011) in archival SDSS data, are found to be well-fit by a thin-accretion-disk model. Furthermore, the inferred Supermassive Black Hole mass values agree well with the SMBH masses estimated from the host galaxy properties. Integrating the model SEDs to include shorter wavelength contributions provides an estimate of the bolometric luminosities of the accretion disks. The resultant bolometric luminosities are well in excess of the minimum required for accelerating UHECR protons. In combination with the recent observational estimate of the TDF rate (van Velzen and Farrar, these Proceedings), the results presented here strengthen the case that transient jets formed in tidal disruption events may be responsible for accelerating all or most UHECRs.

  7. The X-ray through Optical Fluxes and Line Strengths of Tidal Disruption Events

    E-Print Network [OSTI]

    Roth, Nathaniel; Guillochon, James; Ramirez-Ruiz, Enrico

    2015-01-01

    Observations of luminous flares resulting from the possible tidal disruption of stars by supermassive black holes have raised a number of puzzles. Outstanding questions include the origin of the optical and ultraviolet (UV) flux, the weakness of hydrogen lines in the spectrum, and the occasional simultaneous observation of x-rays. Here we study the emission from tidal disruption events (TDEs) produced as radiation from black hole accretion propagates through an extended, optically thick envelope formed from stellar debris. We analytically describe key physics controlling spectrum formation, and present detailed radiative transfer calculations that model the spectral energy distribution (SED) and optical line strengths of TDEs near peak brightness. The steady-state transfer is coupled to a non local thermodynamic equilibrium treatment of the excitation and ionization states of hydrogen, helium and oxygen (as a representative metal). Our calculations show how an extended envelope can reprocess a fraction of sof...

  8. Inefficient highly eccentric accretion and the low luminosity of stellar tidal disruption events

    E-Print Network [OSTI]

    Svirski, Gilad; Krolik, Julian

    2015-01-01

    Models for tidal disruption events (TDEs) in which a supermassive black hole disrupts a star commonly assume that the highly eccentric streams of bound stellar debris promptly form a circular accretion disk at the pericenter scale. However, the bolometric peak luminosity of most TDE candidates, $\\sim10^{44}\\,\\rm{erg\\,s^{-1}}$, implies that we observe only $\\sim1\\%$ of the energy expected from accretion. Moreover, recent numerical simulations (Shiokawa et al. 2015) have shown that dissipation via hydrodynamical shocks is insufficient to circularize debris orbits on the pericenter scale, and the debris flow retains its initial semi-major axis scale throughout the first $\\sim10$ orbits of the event. Motivated by these numerical results, Piran et al. (2015) suggested that the observed optical TDE emission is powered by shocks at the apocenter between freshly infalling material and earlier-arriving matter. This model explains the small radiated energy, the low temperature, and the large radius implied by the obser...

  9. Tidal Disruption Flares as the Source of Ultra-high Energy Cosmic Rays

    E-Print Network [OSTI]

    Farrar, Glennys R

    2012-01-01

    The optical spectral energy distributions of two tidal disruption flares identified by van Velzen et al. (2011) in archival SDSS data, are found to be well-fit by a thin-accretion-disk model. Furthermore, the inferred Supermassive Black Hole mass values agree well with the SMBH masses estimated from the host galaxy properties. Integrating the model SEDs to include shorter wavelength contributions provides an estimate of the bolometric luminosities of the accretion disks. The resultant bolometric luminosities are well in excess of the minimum required for accelerating UHECR protons. In combination with the recent observational estimate of the TDF rate (van Velzen and Farrar, these Proceedings), the results presented here strengthen the case that transient jets formed in tidal disruption events may be responsible for accelerating all or most UHECRs.

  10. BrainMap `95 workshop

    SciTech Connect (OSTI)

    1995-12-31

    The fourth annual BrainMap workshop was held at La Mansion del Rio Hotel in San Antonio December 3--4, 1995. The conference title was ``Human Brain Mapping and Modeling.`` The meeting was attended by 137 registered participants and 30 observers from 82 institutions representing 12 countries. The meeting focused on the technical issues associated with brain mapping and modeling. A total of 23 papers were presented covering the following topics: spatial normalization and registration; functional image analysis; metanalysis and modeling; and new horizons in biological databases. The full program with abstracts was available on the Research Imaging Center`s web site. A book will be published by John Wiley and Sons prior to the end of 1998.

  11. General Relativistic Hydrodynamic Simulation of Accretion Flow from a Stellar Tidal Disruption

    E-Print Network [OSTI]

    Shiokawa, Hotaka; Cheng, Roseanne M; Piran, Tsvi; Noble, Scott C

    2015-01-01

    We study how the matter dispersed when a supermassive black hole tidally disrupts a star joins an accretion flow. Combining a relativistic hydrodynamic simulation of the stellar disruption with a relativistic hydrodynamics simulation of the tidal debris motion, we track such a system until ~80% of the stellar mass bound to the black hole has settled into an accretion flow. Shocks near the stellar pericenter and also near the apocenter of the most tightly-bound debris dissipate orbital energy, but only enough to make the characteristic radius comparable to the semi-major axis of the most-bound material, not the tidal radius as previously thought. The outer shocks are caused by post-Newtonian effects, both on the stellar orbit during its disruption and on the tidal forces. Accumulation of mass into the accretion flow is non-monotonic and slow, requiring ~3--10x the orbital period of the most tightly-bound tidal streams, while the inflow time for most of the mass may be comparable to or longer than the mass accu...

  12. First results on disruption mitigation by massive gas injection in Korea Superconducting Tokamak Advanced Research

    SciTech Connect (OSTI)

    Yu Yaowei [National Fusion Research Institute, Daejeon 305-806 (Korea, Republic of); Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Kim, Young-Ok; Kim, Hak-Kun; Kim, Hong-Tack; Kim, Woong-Chae; Kim, Kwang-Pyo; Son, Soo-Hyun; Bang, Eun-Nam; Hong, Suk-Ho; Yoon, Si-Woo [National Fusion Research Institute, Daejeon 305-806 (Korea, Republic of); Zhuang Huidong [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Chen Zhongyong [Huazhong University of Science and Technology, Wuhan 430074 (China)

    2012-12-15

    Massive gas injection (MGI) system was developed on Korea Superconducting Tokamak Advanced Research (KSTAR) in 2011 campaign for disruption studies. The MGI valve has a volume of 80 ml and maximum injection pressure of 50 bar, the diameter of valve orifice to vacuum vessel is 18.4 mm, the distance between MGI valve and plasma edge is {approx}3.4 m. The MGI power supply employs a large capacitor of 1 mF with the maximum voltage of 3 kV, the valve can be opened in less than 0.1 ms, and the amount of MGI can be controlled by the imposed voltage. During KSTAR 2011 campaign, MGI disruptions are carried out by triggering MGI during the flat top of circular and limiter discharges with plasma current 400 kA and magnetic field 2-3.5 T, deuterium injection pressure 39.7 bar, and imposed voltage 1.1-1.4 kV. The results show that MGI could mitigate the heat load and prevent runaway electrons with proper MGI amount, and MGI penetration is deeper under higher amount of MGI or lower magnetic field. However, plasma start-up is difficult after some of D{sub 2} MGI disruptions due to the high deuterium retention and consequently strong outgassing of deuterium in next shot, special effort should be made to get successful plasma start-up after deuterium MGI under the graphite first wall.

  13. Signatures of recent asteroid disruptions in the formation and evolution of solar system dust bands

    E-Print Network [OSTI]

    Kehoe, A J Espy; Colwell, J E; Dermott, S F

    2015-01-01

    We have performed detailed dynamical modeling of the structure of a faint dust band observed in coadded IRAS data at an ecliptic latitude of 17$^{\\circ}$ that convincingly demonstrates that it is the result of a relatively recent (significantly less than 1 Ma) disruption of an asteroid and is still in the process of forming. We show here that young dust bands retain information on the size distribution and cross-sectional area of dust released in the original asteroid disruption, before it is lost to orbital and collisional decay. We find that the Emilkowalski cluster is the source of this partial band and that the dust released in the disruption would correspond to a regolith layer $\\sim$3 m deep on the $\\sim$10 km diameter source body's surface. The dust in this band is described by a cumulative size-distribution inverse power-law index with a lower bound of 2.1 (implying domination of cross-sectional area by small particles) for dust particles with diameters ranging from a few $\\mu$m up to a few cm. The co...

  14. Map | OpenEI Community

    Open Energy Info (EERE)

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

  15. Homology-Integrated CRISPR-Cas (HI-CRISPR) System for One-Step Multigene Disruption in Saccharomyces cerevisiae

    E-Print Network [OSTI]

    Zhao, Huimin

    Homology-Integrated CRISPR-Cas (HI-CRISPR) System for One-Step Multigene Disruption-integrated CRISPR (HI- CRISPR) strategy represents a powerful tool for creating yeast strains with multiple gene

  16. Self-Organizing Map and Axial Spatial Arrangement Topological Mapping of Alternative Designs

    E-Print Network [OSTI]

    Self-Organizing Map and Axial Spatial Arrangement Topological Mapping of Alternative Designs and Axial Spatial Arrangement:Topological Mapping of Alternative Designs properties of the objects alternatives, make it difficult to compare alternatives, and require tedious user intervention. One

  17. How do I display the Map of Wind Farms csv coordinates in ArcMap...

    Open Energy Info (EERE)

    I display the Map of Wind Farms csv coordinates in ArcMap software? Home > Groups > Geospatial I downloaded the Map of Wind Farms data as a .csv from http:en.openei.orgwiki...

  18. February 2011 Mapping the power

    E-Print Network [OSTI]

    Farrell, Anthony P.

    February 2011 5 Mapping the power of sunshine 8 Aboriginal portal emphasizes video 10 The value or less) must be signed and include an address and phone number for verification. Submit letters to campus By Jody Jacob these compounds could potentially be controlled. "Using lavender as our test model

  19. Mapping onto mesh connected multiprocessors 

    E-Print Network [OSTI]

    Hangal, Prashant L

    1993-01-01

    solutions to the problem of task allocation in the context of a mesh connected parallel computer. We propose a mapping algorithm that is based on the Kernighan-Lin heuristic of vertex movement to reduce the cost of graph partition coupled with repeated...

  20. GIS Mapping Technician Prince George

    E-Print Network [OSTI]

    Northern British Columbia, University of

    initiatives through data input, manipulation, and quality control as well as map production. A skilled for setting stumpage rates at levels consistent with forest product markets. BCTS has divided the province apportionment by planning, developing, auctioning and then reforesting those areas from which auctioned timber

  1. Wetland Mapping Matthew J. Gray

    E-Print Network [OSTI]

    Gray, Matthew

    ) Emergency Wetlands Resources Act (1986) Map all U.S. wetlands by 2001 (95%, WI, NM, MT) and provide distance; perpendicular to contour gradient S N W E ·Transect lower end: permanent water or cardinal 10 m apart = shrub 5 m apart = herbaceous/vine (use the midpoint distance)Linear Wetlands? ·Secure

  2. Disruption | NISAC

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory | National(TechnicalNISACDisruption content top National

  3. The SHB adaptor protein maps to human chromosome 9

    SciTech Connect (OSTI)

    Yulug, I.G.; Hillermann, R.; Fisher, E.M.C. [Imperial College, London (United Kingdom)] [Imperial College, London (United Kingdom)

    1994-12-01

    Many proteins involved in the regulation of cellular proliferation contain sequence motifs named SH2 and SH3. These domains mediate interaction with other proteins: the SH2 domain interacts with tyrosine phosphorylation sites, while SH3 domains interact with proline-rich sequences. Many signal transduction pathways involve the induction of the formation of complexes of proteins such as growth factor receptors, adaptor proteins, and target enzymes through SH2 and SH3 interactions. Adaptor proteins are molecules with multiple protein interaction motifs that do not appear to have any catalytic activity of their own but mediate the interaction of other proteins. The recently identified SHB gene encodes two such adaptor proteins (from two different start methionines) of 67 and 56 kDa. Both proteins possess one SH2 domain at the carboxy terminus and a proline-rich motif that is likely to be a site that binds to SH3 domains in other proteins. While the exact function of the SHB proteins has not been determined yet, it is likely that they play an important role in the transduction of signals from a tyrosine kinase receptor to an unknown cytoplasmic enzyme. As the proteins of signal transduction pathways can be involved in human pathology, particularly oncogenesis, it is important to map their genes to determine proximity to known sites of mutation, such as loss of heterozygosity or chromosomal translocation. Therefore, we have resolved the mapping position of the SHB gene in the human genome to the proximal short arm of chromosome 9. 9 refs., 2 figs.

  4. Volumetric painting by texture mapping swept surfaces 

    E-Print Network [OSTI]

    Ferguson, John William Rowland

    1998-01-01

    In this thesis, a new non-photorealistic technique, aphics. volumetric painting by texture mapping swept surfaces. is introduced. The goal is to show that applying texture maps to sweeping surfaces is a viable means of creating satisfying images...

  5. Maps and Journeys: an Ethnomethodological Investigation 

    E-Print Network [OSTI]

    Brown, Barry; Laurier, Eric

    2005-01-01

    The notion of the ‘cognitive map’ has long been central to studies of maps, wayfinding and navigation. In this paper we provide an alternate approach to what are often mistakenly taken to be private mental processes which ...

  6. SNL-CRCV Map-580 to CRCV

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

    to be badged Sandia National Laboratories 7011 East Avenue Livermore, CA 94551 Parking Tesla Road CRF Parking 904 906 From OaklandSan Francisco Map Not to Scale Map Not to Scale...

  7. Rwanda forest cover mapping. Author Names

    E-Print Network [OSTI]

    and geoinformatics, in conjunction with national conference on mapping and geo-informatics 2006, 5-8 November 2006

  8. Geographic Resource Map of Frozen Pipe Probabilities

    Broader source: Energy.gov [DOE]

    Presentation slide details a resource map showing the probability of frozen pipes in the geographic United States.

  9. CanGEA Fifth Annual Geothermal Conference Presentation - Mapping...

    Energy Savers [EERE]

    CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database Workshop CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database Workshop Mapping...

  10. Building Science-Based Climate Maps - Building America Top Innovation...

    Energy Savers [EERE]

    Building Science-Based Climate Maps - Building America Top Innovation Building Science-Based Climate Maps - Building America Top Innovation Photo showing climate zone maps based on...

  11. Workforce Training for the Electric Power Sector: Map of Projects...

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

    Workforce Training for the Electric Power Sector: Map of Projects Workforce Training for the Electric Power Sector: Map of Projects Map showing the number of projects awarded in...

  12. General Relativistic Hydrodynamic Simulation of Accretion Flow from a Stellar Tidal Disruption

    E-Print Network [OSTI]

    Hotaka Shiokawa; Julian H. Krolik; Roseanne M. Cheng; Tsvi Piran; Scott C. Noble

    2015-01-18

    We study how the matter dispersed when a supermassive black hole tidally disrupts a star joins an accretion flow. Combining a relativistic hydrodynamic simulation of the stellar disruption with a relativistic hydrodynamics simulation of the tidal debris motion, we track such a system until ~80% of the stellar mass bound to the black hole has settled into an accretion flow. Shocks near the stellar pericenter and also near the apocenter of the most tightly-bound debris dissipate orbital energy, but only enough to make the characteristic radius comparable to the semi-major axis of the most-bound material, not the tidal radius as previously thought. The outer shocks are caused by post-Newtonian effects, both on the stellar orbit during its disruption and on the tidal forces. Accumulation of mass into the accretion flow is non-monotonic and slow, requiring ~3--10x the orbital period of the most tightly-bound tidal streams, while the inflow time for most of the mass may be comparable to or longer than the mass accumulation time. Deflection by shocks does, however, remove enough angular momentum and energy from some mass for it to move inward even before most of the mass is accumulated into the accretion flow. Although the accretion rate rises sharply and then decays roughly as a power-law, its maximum is ~0.1x the previous expectation, and the duration of the peak is ~5x longer than previously predicted. The geometric mean of the black hole mass and stellar mass inferred from a measured event timescale is therefore ~0.2x the value given by classical theory.

  13. VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1

    E-Print Network [OSTI]

    VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1 , Xianfeng Gu2 , Tony F. Chan1 , Paul M. Thompson3. The first one is to find a harmonic map from a 3 manifold to a 3D solid sphere and the second is a sphere- gest that 3D harmonic mapping of brain volumes to a solid sphere can provide a canonical coordinate

  14. Unital Positive Maps and Quantum States

    E-Print Network [OSTI]

    M. Asorey; A. Kossakowski; G. Marmo; E. C. G. Sudarshan

    2008-08-04

    We analyze the structure of the subset of states generated by unital completely positive quantum maps, A witness that certifies that a state does not belong to the subset generated by a given map is constructed. We analyse the representations of positive maps and their relation to quantum Perron-Frobenius theory.

  15. VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1

    E-Print Network [OSTI]

    Ferguson, Thomas S.

    VOLUMETRIC HARMONIC BRAIN MAPPING Yalin Wang1 , Xianfeng Gu2 , Tony F. Chan1 , Paul M. Thompson3 general investigation of 3D volumetric brain har- monic mapping. The motivations for 3D volumetric brain volumetric harmonic map- ping algorithm. The algorithm can work with manifolds with genus zero and non genus

  16. Automated evaluation of generalized topographic maps

    E-Print Network [OSTI]

    in their production lines. Map generalization inevitably changes certain aspects (accuracy, com- pleteness, etcAutomated evaluation of generalized topographic maps -- supported by formalization and data of the author. #12;AUTOMATED EVALUATION OF GENERALIZED TOPOGRAPHIC MAPS -- SUPPORTED BY FORMALIZATION AND DATA

  17. Tidal disruption jets as the source of Ultra-High Energy Cosmic Rays

    E-Print Network [OSTI]

    Farrar, Glennys R

    2014-01-01

    Observations of the spectacular, blazar-like tidal disruption event (TDE) candidates Swift J1644+57 and J2058+05 show that the conditions required for accelerating protons to 10^{20} eV appear to be realized in the outer jet, and possibly in the inner jet as well. Direct and indirect estimates of the rate of jetted-TDEs, and of the energy they inject, are compatible with the observed flux of ultra-high energy cosmic rays (UHECRs) and the abundance of presently contributing sources. Thus TDE-jets can be a major source of UHECRs, even compabile with a pure proton composition.

  18. Review of Bioassays for Monitoring Fate and Transport ofEstrogenic Endocrine Disrupting Compounds in Water

    SciTech Connect (OSTI)

    CGCampbell@lbl.gov

    2004-01-30

    Endocrine disrupting compounds (EDCs) are recognizedcontaminants threatening water quality. Despite efforts in sourceidentification, few strategies exist for characterization or treatment ofthis environmental pollution. Given that there are numerous EDCs that cannegatively affect humans and wildlife, general screening techniques likebioassays and biosensors provide an essential rapid and intensiveanalysis capacity. Commonly applied bioassays include the ELISA and YESassays, but promising technologies include ER-CALUXa, ELRA, Endotecta,RIANA, and IR-bioamplification. Two biosensors, Endotecta and RIANA, arefield portable using non-cellular biological detection strategies.Environmental management of EDCs in water requires integration ofbiosensors and bioassays for monitoring and assessment.

  19. Delineating Geographical Regions with Networks of Human Interactions in an Extensive Set of Countries

    E-Print Network [OSTI]

    Sobolevsky, Stanislav

    Large-scale networks of human interaction, in particular country-wide telephone call networks, can be used to redraw geographical maps by applying algorithms of topological community detection. The geographic projections ...

  20. MapReuse and MapRecycle : Two More Frameworks for Eco-Friendly Data Processing

    E-Print Network [OSTI]

    MapReuse and MapRecycle : Two More Frameworks for Eco-Friendly Data Processing Mary Mc presents an additional two frameworks for eco-friendly data processing: MapReuse and MapRecycle. In both: · Share your sensitive data with the general public of researchers. Being eco-friendly is more imporant

  1. The HapMap project has raised high hopes for mapping genetic determinants of complex human

    E-Print Network [OSTI]

    Rosenberg, Noah

    The HapMap project has raised high hopes for mapping genetic determinants of complex human disease for mapping studies in human populations around the world. The HapMap project has characterized haplotype structures across the genome for four human populations with the goal of enabling genome-wide sets of SNPs

  2. Blending World MapBlending World Map ProjectionsProjections Bernhard Jenny, Oregon State University, USA

    E-Print Network [OSTI]

    Clarke, Keith

    Blending World MapBlending World Map ProjectionsProjections Bernhard Jenny, Oregon State University via combination of two projections is well established. Some of the most popular world map projections Tripel projection). These two methods for creating new world map projections are included in the latest

  3. Calculation of Multipolar Exchange Interactions in Spin-Orbital Coupled Systems Shu-Ting Pi,*

    E-Print Network [OSTI]

    Savrasov, Sergej Y.

    the mean field approximation, exchange constants can be mapped into a series of total energy calculations by relating (or mapping) it to the total energy cost of the tensor flip (which is obtained by the LDA þ UCalculation of Multipolar Exchange Interactions in Spin-Orbital Coupled Systems Shu-Ting Pi

  4. A Deep Learning Model for Structured Outputs with High-order Interaction

    E-Print Network [OSTI]

    Toronto, University of

    A Deep Learning Model for Structured Outputs with High-order Interaction Hongyu Guo , Xiaodan Zhu to generate a powerful nonlinear functional mapping from structured input to structured output. More nonlinear functional mapping from high-order structured input to high-order structured output. To this end

  5. NREL: Dynamic Maps, GIS Data, and Analysis Tools - Hydrogen Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12 NationalNOHydrogen Maps Below are some examples

  6. NREL: Dynamic Maps, GIS Data, and Analysis Tools - International Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12 NationalNOHydrogen Maps Below are some

  7. NREL: Dynamic Maps, GIS Data, and Analysis Tools - Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12 NationalNOHydrogen Maps Below are

  8. NREL: Dynamic Maps, GIS Data, and Analysis Tools - Wind Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12 NationalNOHydrogen MapsAdditional Resources Wind

  9. Chaos synchronization in long-range coupled map lattices

    E-Print Network [OSTI]

    C. Anteneodo; A. M. Batista; R. L. Viana

    2004-01-22

    We investigate the synchronization phenomenon in coupled chaotic map lattices where the couplings decay with distance following a power-law. Depending on the lattice size, the coupling strength and the range of the interactions, complete chaos synchronization may be attained. The synchronization domain in parameter space can be analytically delimited by means of the condition of negativity of the largest transversal Lyapunov exponent. Here we analyze in detail the role of all the system parameters in the ability of the lattice to achieve complete synchronization, testing analytical results with the outcomes of numerical experiments.

  10. Metrics for comparison of crystallographic maps

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

    Urzhumtsev, Alexandre; Afonine, Pavel V.; Lunin, Vladimir Y.; Terwilliger, Thomas C.; Adams, Paul D.

    2014-10-01

    Numerical comparison of crystallographic contour maps is used extensively in structure solution and model refinement, analysis and validation. However, traditional metrics such as the map correlation coefficient (map CC, real-space CC or RSCC) sometimes contradict the results of visual assessment of the corresponding maps. This article explains such apparent contradictions and suggests new metrics and tools to compare crystallographic contour maps. The key to the new methods is rank scaling of the Fourier syntheses. The new metrics are complementary to the usual map CC and can be more helpful in map comparison, in particular when only some of their aspects,more »such as regions of high density, are of interest.« less

  11. Discovery of an outflow from radio observations of the tidal disruption event ASASSN-14li

    E-Print Network [OSTI]

    Alexander, Kate D; Guillochon, James; Zauderer, Bevin A; Williams, Peter K G

    2015-01-01

    The tidal disruption of stars by supermassive black holes (SMBH) lights up dormant systems and can be used to probe accretion and outflow processes. Theoretical calculations indicate that most tidal disruption events (TDEs) lead to super-Eddington accretion, which in turn drives outflows. The discovery of luminous radio emission from the $\\gamma$-ray TDE Sw J1644+57 revealed the formation of a relativistic jetted outflow, but such events represent $\\lesssim 1\\%$ of the TDE population. Direct evidence for outflows in the bulk of the TDE population, discovered through optical, ultraviolet (UV), and X-ray observations, has been lacking. Here we report the discovery of transient radio emission from the nearby optically-discovered TDE ASASSN-14li (distance of 90 Mpc), making it the first normal TDE detected in the radio, and unambiguously pointing to the formation of a non-relativistic outflow with a kinetic energy of $\\approx 10^{48}$ erg, a velocity of $\\approx 12,000-39,000$ km s$^{-1}$, and a mass of $\\approx ...

  12. Stellar and gas dynamical model for tidal disruption events in a quiescent galaxy

    E-Print Network [OSTI]

    Mageshwaran, T

    2015-01-01

    A detailed model of the tidal disruption events (TDE) has been constructed using stellar dynamical and gas dynamical inputs that include black hole mass $M_{\\bullet}$, specific orbital energy $E$ and angular momentum $J$, star mass $M_{\\star}$ and radius $R_{\\star}$ and pericenter of the star orbit $r_{p}(E,\\hspace{1mm}J,\\hspace{1mm}M_{\\bullet})$. We have solved the steady state Fokker- Planck equation using the standard loss cone theory for the galactic density profile $\\rho (r) \\propto r^{-\\gamma}$ and stellar mass function $\\xi(m) $ where $m=M_{\\star}/M_{\\odot}$ and obtained the feeding rate of stars to the black hole integrated over the phase space as $\\dot{N}_{t} \\propto M_{\\bullet}^\\beta$ where $\\beta= -0.3\\pm 0.01$ for $M_{\\bullet}>10^7 M_{\\odot}$ and $\\sim 6.8 \\hspace{1mm} \\times 10^{-5}$ Yr$^{-1}$ for $\\gamma=0.7$. Using this we model the in fall rate of the disrupted debris, $\\dot{M}(E,\\hspace{1mm}J,\\hspace{1mm}m,\\hspace{1mm}t)$ and discuss conditions for the disk formation and find that the accreti...

  13. A tidal disruption event in a nearby galaxy hosting an intermediate mass black hole

    SciTech Connect (OSTI)

    Donato, D.; Troja, E.; Pursimo, T.; Cheung, C. C.; Kutyrev, A.; Landt, H.; Butler, N. R.

    2014-02-01

    We report the serendipitous discovery of a bright point source flare in the Abell cluster A1795 with archival EUVE and Chandra observations. Assuming the EUVE emission is associated with the Chandra source, the X-ray 0.5-7 keV flux declined by a factor of ?2300 over a time span of 6 yr, following a power-law decay with index ?2.44 ± 0.40. The Chandra data alone vary by a factor of ?20. The spectrum is well fit by a blackbody with a constant temperature of kT ? 0.09 keV (?10{sup 6} K). The flare is spatially coincident with the nuclear region of a faint, inactive galaxy with a photometric redshift consistent at the 1? level with the cluster (z = 0.062476). We argue that these properties are indicative of a tidal disruption of a star by a black hole (BH) with log (M {sub BH}/M {sub ?}) ? 5.5 ± 0.5. If so, such a discovery indicates that tidal disruption flares may be used to probe BHs in the intermediate mass range, which are very difficult to study by other means.

  14. Infrared emission from tidal disruption events --- probing the pc-scale dust content around galactic nuclei

    E-Print Network [OSTI]

    Lu, Wenbin; Evans, Neal J

    2015-01-01

    Recent UV-optical surveys have been successful in finding tidal disruption events (TDEs), in which a star is tidally disrupted by a supermassive black hole (BH). These TDEs release a huge amount of radiation energy ~ 10^51-52 erg into the circum-nuclear medium. If the medium is dusty, most of the radiation energy will be absorbed by dust grains within ~ 1 pc from the BH and re-radiated in the infrared. We calculate the dust emission lightcurve from a 1-D radiative transfer model, taking into account the time-dependent heating, cooling and sublimation of dust grains. We show that the dust emission peaks at 3-10 microns and has typical luminosities ~ 10^42-43 erg/s (with sky covering factor of dusty clouds ranging from 0.1-1). This is detectable by current generation of telescopes. In the near future, James Webb Space Telescope will be able to perform photometric and spectroscopic measurements, in which silicate or polycyclic aromatic hydrocarbon (PAH) features may be found. Observations at rest-frame wavelengt...

  15. Tidal Downsizing model. I. Numerical methods: saving giant planets from tidal disruptions

    E-Print Network [OSTI]

    Nayakshin, Sergei

    2014-01-01

    Tidal Downsizing (TD) is a recently developed planet formation theory that supplements the classical Gravitational disc Instability (GI) model with planet migration inward and tidal disruptions of GI fragments in the inner regions of the disc. Numerical methods for a detailed population synthesis of TD planets are presented here. As an example application, the conditions under which GI fragments collapse faster than they migrate into the inner $a\\sim$ few AU disc are considered. It is found that most gas fragments are tidally or thermally disrupted unless (a) their opacity is $\\sim 3$ orders of magnitude less than the interstellar dust opacity at metallicities typical of the observed giant planets, or (b) the opacity is high but the fragments accrete large dust grains (pebbles) from the disc. Case (a) models produce very low mass solid cores ($M_{\\rm core} < 0.1$ Earth masses) and follow a negative correlation of giant planet frequency with host star metallicity. In contrast, case (b) models produce massiv...

  16. Market disruption, cascading effects, and economic recovery:a life-cycle hypothesis model.

    SciTech Connect (OSTI)

    Sprigg, James A.

    2004-11-01

    This paper builds upon previous work [Sprigg and Ehlen, 2004] by introducing a bond market into a model of production and employment. The previous paper described an economy in which households choose whether to enter the labor and product markets based on wages and prices. Firms experiment with prices and employment levels to maximize their profits. We developed agent-based simulations using Aspen, a powerful economic modeling tool developed at Sandia, to demonstrate that multiple-firm economies converge toward the competitive equilibria typified by lower prices and higher output and employment, but also suffer from market noise stemming from consumer churn. In this paper we introduce a bond market as a mechanism for household savings. We simulate an economy of continuous overlapping generations in which each household grows older in the course of the simulation and continually revises its target level of savings according to a life-cycle hypothesis. Households can seek employment, earn income, purchase goods, and contribute to savings until they reach the mandatory retirement age; upon retirement households must draw from savings in order to purchase goods. This paper demonstrates the simultaneous convergence of product, labor, and savings markets to their calculated equilibria, and simulates how a disruption to a productive sector will create cascading effects in all markets. Subsequent work will use similar models to simulate how disruptions, such as terrorist attacks, would interplay with consumer confidence to affect financial markets and the broader economy.

  17. HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS Anand Arvind Joshi

    E-Print Network [OSTI]

    Leahy, Richard M.

    HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS by Anand Arvind Joshi A Thesis Presented ii Abstract iv 1 Harmonic Mappings 1 1.1 Space of Maps Variation Formula . . . . . . . . . . . . . . . . . . . . . . . . 11 1.4 Harmonic Maps

  18. Article A10.4 Introduction to the Research Tools Mind Map

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ) Compare resources: Top 30 Web Tools to Search, 100 Useful Tips and Tools to Research the Deep Web (g do their work efficiently. It is assembled as an interactive Web-based mind map, titled Research Adcenter Lab, keyword density analyser, Free Keyword Tool (c) Find research materials: Web of Science

  19. Automatically and Accurately Conflating Orthoimagery and Street Maps

    E-Print Network [OSTI]

    Shahabi, Cyrus

    , such as property survey maps and maps of oil and natural gas fields. Satellite imagery and aerial photography have

  20. Physical mapping of complex genomes

    DOE Patents [OSTI]

    Evans, G.A.

    1993-06-15

    A method for the simultaneous identification of overlapping cosmid clones among multiple cosmid clones and the use of the method for mapping complex genomes are provided. A library of cosmid clones that contains the DNA to be mapped is constructed and arranged in a manner such that individual clones can be identified and replicas of the arranged clones prepared. In preferred embodiments, the clones are arranged in a two dimensional matrix. In such embodiments, the cosmid clones in a row are pooled, mixed probes complementary to the ends of the DNA inserts in the pooled clones are synthesized, hybridized to a first replica of the library. Hybridizing clones, which include the pooled row, are identified. A second portion of clones is prepared by pooling cosmid clones that correspond to a column in the matrix. The second pool thereby includes one clone from the first portion pooled clones. This common clone is located on the replica at the intersection of the column and row. Mixed probes complementary to the ends of the DNA inserts in the second pooled portion of clones are prepared and hybridized to a second replica of the library. The hybridization pattern on the first and second replicas of the library are compared and cross-hybridizing clones, other than the clones in the pooled column and row, that hybridize to identical clones in the first and second replicas are identified. These clones necessarily include DNA inserts that overlap with the DNA insert in the common clone located at the intersection of the pooled row and pooled column. The DNA in the entire library may be mapped by pooling the clones in each of the rows and columns of the matrix, preparing mixed end-specific probes and hybridizing the probes from each row or column to a replica of the library. Since all clones in the library are located at the intersection of a column and a row, the overlapping clones for all clones in the library may be identified and a physical map constructed.

  1. Physical mapping of complex genomes

    DOE Patents [OSTI]

    Evans, Glen A. (Encinitas, CA)

    1993-01-01

    Method for simultaneous identification of overlapping cosmid clones among multiple cosmid clones and the use of the method for mapping complex genomes are provided. A library of cosmid clones that contains the DNA to be mapped is constructed and arranged in a manner such that individual clones can be identified and replicas of the arranged clones prepared. In preferred embodiments, the clones are arranged in a two dimensional matrix. In such embodiments, the cosmid clones in a row are pooled, mixed probes complementary to the ends of the DNA inserts int he pooled clones are synthesized, hybridized to a first replica of the library. Hybridizing clones, which include the pooled row, are identified. A second portion of clones is prepared by pooling cosmid clones that correspond to a column in the matrix. The second pool thereby includes one clone from the first portion pooled clones. This common clone is located on the replica at the intersection of the column and row. Mixed probes complementary to the ends of the DNA inserts in the second pooled portion of clones are prepared and hybridized to a second replica of the library. The hybridization pattern on the first and second replicas of the library are compared and cross-hybridizing clones, other than the clones in the pooled column and row, that hybridize to identical clones in the first and second replicas are identified. These clones necessarily include DNA inserts that overlap with the DNA insert int he common clone located at the intersection of the pooled row and pooled column. The DNA in the entire library may be mapped by pooling the clones in each of the rows and columns of the matrix, preparing mixed end-specific probes and hybridizing the probes from each row or column to a replica of the library. Since all clones in the library are located at the intersection of a column and a row, the overlapping clones for all clones in the library may be identified and a physical map constructed. In other preferred embodiments, the cosmid clones are arranged in a three dimensional matrix, pooled and compared in threes according to intersecting planes of the three dimensional matrix. Arrangements corresponding to geometries of higher dimensions may also be prepared and used to simultaneously identify overlapping clones in highly complex libraries with relatively few hybridization reactions.

  2. Fault Mapping | Open Energy Information

    Open Energy Info (EERE)

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

  3. Field Mapping | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbHFarinello GeothermalFideris Inc formerly1-2003)EmidioMapping Jump to:

  4. ARM - TWP-ICE Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrnBarrow, AlaskaManus Site-Inactive TWP Related Links Facilities andTWP-ICE Maps

  5. WINDExchange: Wind Maps and Data

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopmentat LENA|UpcomingVisit UsNews This pageMarketWind Maps and

  6. Site Map | DOE Data Explorer

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|Sensitive Species3 Outlook forSimulationsSite Map TUNL pdf's

  7. Site Map | ScienceCinema

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|Sensitive Species3 Outlook forSimulationsSite Map TUNL

  8. Inter-Machine Comparison of the Termination Phase and Energy Conversion in Tokamak Disruptions with Runaway Current Plateau Formation and Implications for ITER

    E-Print Network [OSTI]

    Inter-Machine Comparison of the Termination Phase and Energy Conversion in Tokamak Disruptions with Runaway Current Plateau Formation and Implications for ITER

  9. The Antimicrobial Peptide Histatin-5 Causes a Spatially Restricted Disruption on the Candida albicans Surface, Allowing Rapid Entry of the Peptide into the Cytoplasm

    E-Print Network [OSTI]

    Mochon, A. Brian; Liu, Haoping

    2008-01-01

    peptides: histatin 5 causes small membrane defects,but LL-37 causes massive disruption of the cell membrane.salivary histatin 5 causes disordered volume regulation and

  10. Magnetic Energy Flows during the Current Quench and Termination of Disruptions with Runaway Current Plateau Formation in JET and Implications for ITER

    E-Print Network [OSTI]

    Magnetic Energy Flows during the Current Quench and Termination of Disruptions with Runaway Current Plateau Formation in JET and Implications for ITER

  11. Assessment of Probabilistic Venn Machines as Real-Time Disruption Predictors from Scratch: Application to JET with a View on ITER

    E-Print Network [OSTI]

    Assessment of Probabilistic Venn Machines as Real-Time Disruption Predictors from Scratch: Application to JET with a View on ITER

  12. Reciprocal Space Mapping for Dummies

    E-Print Network [OSTI]

    Samuele Lilliu; Thomas Dane

    2015-12-28

    Grazing Incidence X-ray Diffraction (GIXD) is a surface sensitive X-ray investigation technique (or geometry configuration) that can reveal the structural properties of a film deposited on a flat substrate. The term grazing indicates that the angle between the incident beam and the film is small (typically below 0.5 degrees). This essential technique has been employed on liquid crystals, nanoparticles and colloids, nanostructures, corrosion processes, polymers, bio-materials, interfaces, materials for solar cells, photodiodes, and transistors, etc. Diffraction patterns in GIXD geometry are typically captured with a 2D detector, which outputs images in pixel coordinates. A step required to perform analyses such as grain size estimation, disorder, preferred orientation, quantitative phase analysis of the probed film surface, etc., consists in converting the diffraction image from pixel coordinates to the momentum transfer or scattering vector in sample coordinates (the reciprocal space mapping). This momentum transfer embeds information on the crystal or polycrystal and its intrinsic rotation with respect to the substrate. In this work we derive, in a rigorous way, the reciprocal space mapping equations for a 3D+1S diffractometer in a way that is understandable to anyone with basic notions of linear algebra, geometry, and X-ray diffraction.

  13. Reciprocal Space Mapping for Dummies

    E-Print Network [OSTI]

    Samuele Lilliu; Thomas Dane

    2015-11-18

    Grazing Incidence X-ray Diffraction (GIXD) is a surface sensitive X-ray investigation technique (or geometry configuration) that can reveal the structural properties of a film deposited on a flat substrate. The term grazing indicates that the angle between the incident beam and the film is small (typically below 0.5 degrees). This essential technique has been employed on liquid crystals, nanoparticles and colloids, nanostructures, corrosion processes, polymers, bio-materials, interfaces, materials for solar cells, photodiodes, and transistors, etc. Diffraction patterns in GIXD geometry are typically captured with a 2D detector, which outputs images in pixel coordinates. A step required to perform analyses such as grain size estimation, disorder, preferred orientation, quantitative phase analysis of the probed film surface, etc., consists in converting the diffraction image from pixel coordinates to the momentum transfer or scattering vector in sample coordinates (the reciprocal space mapping). This momentum transfer embeds information on the crystal or polycrystal and its intrinsic rotation with respect to the substrate. In this work we derive, in a rigorous way, the reciprocal space mapping equations for a 3D+1S diffractometer in a way that is understandable to anyone with basic notions of linear algebra, geometry, and X-ray diffraction.

  14. An in vitro investigation of endocrine disrupting effects of the mycotoxin alternariol

    SciTech Connect (OSTI)

    Frizzell, Caroline; Ndossi, Doreen; Kalayou, Shewit; Eriksen, Gunnar S.; Verhaegen, Steven; Sørlie, Morten; Elliott, Christopher T.; Ropstad, Erik; Connolly, Lisa

    2013-08-15

    Alternariol (AOH) is a mycotoxin commonly produced by Alternaria alternata on a wide range of foods. Few studies to date have been performed to evaluate the effects of AOH on endocrine activity. The present study makes use of in vitro mammalian cellular based assays and gene expression to investigate the ability of AOH to act as an endocrine disruptor by various modes of action. Reporter gene assays (RGAs), incorporating natural steroid hormone receptors for oestrogens, androgens, progestagens and glucocorticoids were used to identify endocrine disruption at the level of nuclear receptor transcriptional activity, and the H295R steroidogenesis assay was used to assess endocrine disruption at the level of gene expression and steroid hormone production. AOH exhibited a weak oestrogenic response when tested in the oestrogen responsive RGA and binding of progesterone to the progestagen receptor was shown to be synergistically increased in the presence of AOH. H295R cells when exposed to 0.1–1000 ng/ml AOH, did not cause a significant change in testosterone and cortisol hormones but exposure to 1000 ng/ml (3.87 ?M) AOH resulted in a significant increase in estradiol and progesterone production. In the gene expression study following exposure to 1000 ng/ml (3.87 ?M) AOH, only one gene NR0B1 was down-regulated, whereas expression of mRNA for CYP1A1, MC2R, HSD3B2, CYP17, CYP21, CYP11B2 and CYP19 was up-regulated. Expression of the other genes investigated did not change significantly. In conclusion AOH is a weak oestrogenic mycotoxin that also has the ability to interfere with the steroidogenesis pathway. - Highlights: • Alternariol was investigated for endocrine disrupting activity. • Reporter gene assays and the H295R steroidogenesis assay have been used. • An oestrogenic effect of alternariol was observed. • This can lead to an increase in expression of the progesterone receptor. • Alternariol is capable of modulating hormone production and gene expression.

  15. Atrazine acts as an endocrine disrupter by inhibiting cAMP-specific phosphodiesterase-4

    SciTech Connect (OSTI)

    Kucka, Marek; Pogrmic-Majkic, Kristina; Fa, Svetlana; Stojilkovic, Stanko S.; Kovacevic, Radmila

    2012-11-15

    Atrazine, one of the most commonly used herbicides worldwide, acts as an endocrine disruptor, but the mechanism of its action has not been characterized. In this study, we show that atrazine rapidly increases cAMP levels in cultured rat pituitary and testicular Leydig cells in a concentration-dependent manner, but less effectively than 3-isobutyl-1-methylxanthine, a competitive non-specific inhibitor of phosphodiesterases (PDEs). In forskolin (an activator of adenylyl cyclase)- and probenecid (an inhibitor of cyclic nucleotide transporters)-treated cells, but not in 3-isobutyl-1-methylxanthine-treated cells, atrazine further increased cAMP levels, indicating that inhibition of PDEs accounts for accumulation of cAMP. In contrast to cAMP, atrazine did not alter cGMP levels, further indicating that it inhibits cAMP-specific PDEs. Atrazine-induced changes in cAMP levels were sufficient to stimulate prolactin release in pituitary cells and androgen production in Leydig cells, indicating that it acts as an endocrine disrupter both in cells that secrete by exocytosis of prestored hormones and in cells that secrete by de novo hormone synthesis. Rolipram abolished the stimulatory effect of atrazine on cAMP release in both cell types, suggesting that it acts as an inhibitor of PDE4s, isoforms whose mRNA transcripts dominate in pituitary and Leydig cells together with mRNA for PDE8A. In contrast, immortalized lacto-somatotrophs showed low expression of these mRNA transcripts and several fold higher cAMP levels compared to normal pituitary cells, and atrazine was unable to further increase cAMP levels. These results indicate that atrazine acts as a general endocrine disrupter by inhibiting cAMP-specific PDE4s. -- Highlights: ? Atrazine stimulates cAMP accumulation in pituitary and Leydig cells. ? Atrazine also stimulates PRL and androgens secretion. ? Stimulatory effects of atrazine were abolished in cells with IBMX-inhibited PDEs. ? Atrazine specificity toward cAMP-specific PDEs was indicated by no changes in cGMP. ? Rolipram, a specific PDE4 inhibitor, also prevents stimulatory effects of atrazine. ? Atrazine acts as an endocrine disrupter by inhibiting cAMP-specific PDE4.

  16. Avoiding Tokamak disruptions by applying static magnetic fields that align locked modes with stabilizing wave-driven currents

    E-Print Network [OSTI]

    Volpe, F A; La Haye, R J; Lanctot, M J; Lohr, J; Prater, R; Strait, E J; Welander, A

    2015-01-01

    Non-rotating (`locked') magnetic islands often lead to complete losses of confinement in tokamak plasmas, called major disruptions. Here locked islands were suppressed for the first time, by a combination of applied three-dimensional magnetic fields and injected millimetre waves. The applied fields were used to control the phase of locking and so align the island O-point with the region where the injected waves generated non-inductive currents. This resulted in stabilization of the locked island, disruption avoidance, recovery of high confinement and high pressure, in accordance with the expected dependencies upon wave power and relative phase between O-point and driven current.

  17. Linking Learning Goals and Educational Resources through Interactive Concept

    E-Print Network [OSTI]

    Janée, Greg

    Linking Learning Goals and Educational Resources through Interactive Concept Map Visualizations Barbara, 1205 Girvetz Hall, Santa Barbara, CA, USA gjanee@alexandria.ucsb.edu Abstract. Concept browsing interfaces can help educators and learners to locate and use learning resources that are aligned

  18. Complexity analysis of pipeline mapping problems in distributed heterogeneous networks

    SciTech Connect (OSTI)

    Lin, Ying; Wu, Qishi; Zhu, Mengxia; Rao, Nageswara S

    2009-04-01

    Largescale scientific applications require using various system resources to execute complex computing pipelines in distributed networks to support collaborative research. System resources are typically shared in the Internet or over dedicated connections based on their location, availability, capability, and capacity. Optimizing the network performance of computing pipelines in such distributed environments is critical to the success of these applications. We consider two types of largescale distributed applications: (1) interactive applications where a single dataset is sequentially processed along a pipeline; and (2) streaming applications where a series of datasets continuously flow through a pipeline. The computing pipelines of these applications consist of a number of modules executed in a linear order in network environments with heterogeneous resources under different constraints. Our goal is to find an efficient mapping scheme that allocates the modules of a pipeline to network nodes for minimum endtoend delay or maximum frame rate. We formulate the pipeline mappings in distributed environments as optimization problems and categorize them into six classes with different optimization goals and mapping constraints: (1) Minimum Endtoend Delay with No Node Reuse (MEDNNR), (2) Minimum Endtoend Delay with Contiguous Node Reuse (MEDCNR), (3) Minimum Endtoend Delay with Arbitrary Node Reuse (MEDANR), (4) Maximum Frame Rate with No Node Reuse or Share (MFRNNRS), (5) Maximum Frame Rate with Contiguous Node Reuse and Share (MFRCNRS), and (6) Maximum Frame Rate with Arbitrary Node Reuse and Share (MFRANRS). Here, 'contiguous node reuse' means that multiple contiguous modules along the pipeline may run on the same node and 'arbitrary node reuse' imposes no restriction on node reuse. Note that in interactive applications, a node can be reused but its resource is not shared. We prove that MEDANR is polynomially solvable and the rest are NP-complete. MEDANR, where either contiguous or noncontiguous modules in the pipeline can be mapped onto the same node, is essentially the Maximum n-hop Shortest Path problem, and can be solved using a dynamic programming method. In MEDNNR and MFRNNRS, any network node can be used only once, which requires selecting the same number of nodes for onetoone onto mapping. We show its NP-completeness by reducing from the Hamiltonian Path problem. Node reuse is allowed in MEDCNR, MFRCNRS and MFRANRS, which are similar to the Maximum n-hop Shortest Path problem that considers resource sharing. We prove their NP-completeness by reducing from the Disjoint-Connecting-Path Problem and Widest path with the Linear Capacity Constraints problem, respectively.

  19. Patent Overlay Mapping: Visualizing Technological Distance

    E-Print Network [OSTI]

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

    2012-01-01

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

  20. Some examples of exponentially harmonic maps

    E-Print Network [OSTI]

    A D Kanfon; A Füzfa; D Lambert

    2002-05-15

    The aim of this paper is to study some examples of exponentially harmonic maps. We study such maps firstly on flat euclidean and Minkowski spaces and secondly on Friedmann-Lema\\^ itre universes. We also consider some new models of exponentially harmonic maps which are coupled with gravity which happen to be based on a generalization of the lagrangian for bosonic strings coupled with dilatonic field.

  1. Disrupted Globular Clusters Can Explain the Galactic Center Gamma Ray Excess

    E-Print Network [OSTI]

    Brandt, Timothy D

    2015-01-01

    The Fermi satellite has recently detected gamma ray emission from the central regions of our Galaxy. This may be evidence for dark matter particles, a major component of the standard cosmological model, annihilating to produce high-energy photons. We show that the observed signal may instead be generated by millisecond pulsars that formed in dense star clusters in the Galactic halo. Most of these clusters were ultimately disrupted by evaporation and gravitational tides, contributing to a spherical bulge of stars and stellar remnants. The gamma ray amplitude, angular distribution, and spectral signatures of this source may be predicted without free parameters, and are in remarkable agreement with the observations. These gamma rays are from fossil remains of dispersed clusters, telling the history of the Galactic bulge.

  2. A LUMINOUS, FAST RISING UV-TRANSIENT DISCOVERED BY ROTSE: A TIDAL DISRUPTION EVENT?

    SciTech Connect (OSTI)

    Vinkó, J.; Wheeler, J. C.; Chatzopoulos, E.; Marion, G. H. [Department of Astronomy, McDonald Observatory, University of Texas at Austin, Austin, TX 78712 (United States); Yuan, F.; Akerlof, C. [Physics Department, University of Michigan, Ann Arbor, MI 48109 (United States); Quimby, R. M. [Kavli IPMU, University of Tokyo, 5-1-5 Kahiwanoha, Kashiwa-shi, Chiba 277-8583 (Japan); Ramirez-Ruiz, E.; Guillochon, J., E-mail: vinko@astro.as.utexas.edu [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)

    2015-01-01

    We present follow-up observations of an optical transient (OT) discovered by ROTSE on 2009 January 21. Photometric monitoring was carried out with ROTSE-IIIb in the optical and Swift in the UV up to +70 days after discovery. The light curve showed a fast rise time of ?10 days followed by a steep decline over the next 60 days, which was much faster than that implied by {sup 56}Ni—{sup 56}Co radioactive decay. The Sloan Digital Sky Survey Data Release 10 database contains a faint, red object at the position of the OT, which appears slightly extended. This and other lines of evidence suggest that the OT is of extragalactic origin, and this faint object is likely the host galaxy. A sequence of optical spectra obtained with the 9.2 m Hobby-Eberly Telescope between +8 and +45 days after discovery revealed a hot, blue continuum with no visible spectral features. A few weak features that appeared after +30 days probably originated from the underlying host. Fitting synthetic templates to the observed spectrum of the host galaxy revealed a redshift of z = 0.19. At this redshift, the peak magnitude of the OT is close to –22.5, similar to the brightest super-luminous supernovae; however, the lack of identifiable spectral features makes the massive stellar death hypothesis less likely. A more plausible explanation appears to be the tidal disruption of a Sun-like star by the central supermassive black hole. We argue that this transient likely belongs to a class of super-Eddington tidal disruption events.

  3. OutageMapURL Phases Energy Services

    Open Energy Info (EERE)

    OutageMapURL Phases Energy Services County Electric Power Assn http outages county org A N Electric Coop Virginia AEP Generating Company https www aepaccount com zipr...

  4. A Practical Introduction to MapServer

    E-Print Network [OSTI]

    Lime, Steve

    2008-11-19

    stream_size 3294 stream_content_type text/plain stream_name ku_gis_day_2008_lime.pdf.txt stream_source_info ku_gis_day_2008_lime.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8 A Practical... Introduction to MapServer Steve Lime Minnesota DNR GIS Day 2008 @ KU MapServer Past •1995 - C program -> ArcPlot AML •1996 - NASA sponsors ForNet •1997 - shapelib released •1999 - NASA sponsors TerraSIP •2000 - MapServer 3.0 release •2003 - MapServer 4...

  5. Digital Mapping Of Structurally Controlled Geothermal Features...

    Open Energy Info (EERE)

    (PCs) were used to map surface geothermal features at the Bradys Hot Springs and Salt Wells geothermal systems, Churchill County, Nevada, in less time and with greater...

  6. Mapping Particle Charges in Battery Electrodes

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

    of the porous electrode. Using the STXM lithium maps and the high-resolution TEM images, researchers found that LFP battery particles do not charge simultaneously....

  7. Accelerating Read Mapping with FastHASH

    E-Print Network [OSTI]

    Xin, Hongyi; Lee, Donghyuk; Hormozdiari, Farhad; Yedkar, Samihan; Mutlu, Onur; Alkan, Can

    2013-01-01

    within the current human genome project assembly. Genome Res4. 2. 1000 Genomes Project Consortium: A map of human genomea human genome sequenced within the 1000 Genomes Project.

  8. Speech processing using maximum likelihood continuity mapping

    DOE Patents [OSTI]

    Hogden, John E. (Santa Fe, NM)

    2000-01-01

    Speech processing is obtained that, given a probabilistic mapping between static speech sounds and pseudo-articulator positions, allows sequences of speech sounds to be mapped to smooth sequences of pseudo-articulator positions. In addition, a method for learning a probabilistic mapping between static speech sounds and pseudo-articulator position is described. The method for learning the mapping between static speech sounds and pseudo-articulator position uses a set of training data composed only of speech sounds. The said speech processing can be applied to various speech analysis tasks, including speech recognition, speaker recognition, speech coding, speech synthesis, and voice mimicry.

  9. Energy Citations Database (ECD) - Site Map

    Office of Scientific and Technical Information (OSTI)

    Site Map Home Basic Search Fielded Search Document Availability About ECD Help FAQ Contact Us Website Policies and Important Links Alerts Log On Alerts Registration Alerts Help...

  10. Infrared Mapping Helps Optimize Catalytic Reactions

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

    Infrared Mapping Helps Optimize Catalytic Reactions Print A pathway to more effective and efficient synthesis of pharmaceuticals and other flow-reactor chemical products has been...

  11. Infrared Mapping Helps Optimize Catalytic Reactions

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

    was mapped in high resolution from start to finish. The formation of different chemical products during the reactions was analyzed in situ using infrared...

  12. Approximations by Orthonormal Mapped Chebyshev Functions for ...

    E-Print Network [OSTI]

    2014-03-12

    a School of Mathematical Science, Xiamen University, 361005 Xiamen, China .... suitable mapping can be used to approximate functions on the whole line R (cf.

  13. Error Analysis for Mapped Jacobi Spectral Methods

    E-Print Network [OSTI]

    2005-08-19

    Nov 30, 2003 ... Journal of Scientific Computing, Vol. 24, No. 2, August ... locally refined grid, a popular strategy is to use a suitable mapping which transforms a ...

  14. Infrared Mapping Helps Optimize Catalytic Reactions

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

    The team is now exploring techniques that would permit two- and three-dimensional mapping of catalytic reactions. Multidimensional imaging will give the ability to know...

  15. Canadian Atlas Map Bundle Data Creator /

    E-Print Network [OSTI]

    , Nunavut, Ontario, Prince Edward Island, Quebec, Saskatchewan, Yukon Keywords (Subject): Railroads, mountains, parks and islands. Data Type: Vector Digital Data Format: Shapefile Datum / Map Projection: NAD83

  16. Mapping Particle Charges in Battery Electrodes

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

    Mapping Particle Charges in Battery Electrodes Print The deceivingly simple appearance of batteries masks their chemical complexity. A typical lithium-ion battery in a cell phone...

  17. Mappings and k-spaces 

    E-Print Network [OSTI]

    Slama, Carolyn Jeanette

    1970-01-01

    )) ~ Thus, there exists a point q ~ f (p) such that q ~ cl(f (H)). Cases 1 and 2 show by Proposition 2. 9 that f is pseudo-open. I'r ~ttl 2 (j3*. * . * [7]). A ppl 6 from X onto Y 1s pseudo-open if and only if for each p ~ Y and. H ~ Y such that p e cl...(H), there exists a po1nt q ~ f (p) such that q = ? cl(f (R) ) ~ -1 The si &ilarities between this characterization of pseudo-open end the cheractori "atlons we have for perfecC (Proposlt1on 2 3) and b1?quot1ent (Proposition 2. 8) mapping- indicate that a...

  18. Understanding disruptions in tokamaks Leonid E. Zakharov, Sergei A. Galkin, Sergei N. Gerasimov, and JET-EFDA contributors

    E-Print Network [OSTI]

    Zakharov, Leonid E.

    turbulence in standard tokamaks Phys. Plasmas 19, 055907 (2012) Reactor-relevant quiescent H-mode operation of tokamak disruptions Phys. Plasmas 19, 058101 (2012) Applying alpha-channeling to mirror machines Phys FAR-TECH, Inc., 10350 Science Center Dr. Bld. 14, St 150, San Diego, California 92121, USA 3 EURATOM

  19. Development/Plasticity/Repair Disrupted ERK Signaling during Cortical Development Leads

    E-Print Network [OSTI]

    disorders arising from copy number variations in the ERK (extracellular signal-regulated kinase) MAP protein) kinases, ERK1 and ERK2, are the central ele- ments of a prominent signaling pathway governing related disorders termed neuro-cardio-facial-cutaneous (NCFC) syndromes (Tidyman and Rauen, 2008

  20. NCBI Map Viewer Tutorial NCBI's Map Viewer can be used to visualize an organism's genome and

    E-Print Network [OSTI]

    Levin, Judith G.

    .1" link. Enter GDNF as a search term and click on the "Find" button. Filter your search result for gene sapiens (human) Build 36" link. Enter PRNP as a search term. Name the chromosome on which this gene mutated. Search for "GDNF" in the Map Viewer. Access the Human Map Viewer page by clicking on the Map

  1. The London Underground map The famous London Underground map shows the Thames

    E-Print Network [OSTI]

    Jenny, Bernhard

    of graphic information design. London Transport, of course, continues improving and extending the diagram mapThe London Underground map The famous London Underground map shows the Thames and named metro, was that it brought order into London's intricate geography. Garland 1998:7-8 writes: "Above any consideration

  2. On Constructing a Base Map for Collaborative Map Generation and its Application in Urban Mobility Planning

    E-Print Network [OSTI]

    planning depends largely on the presence of good navigation data in the form of vectorized maps countries. On the other hand, good paper maps collected by the city authorities are widely available. Nevertheless, the integration of these GPS traces is itself a challenge and requires a good base map

  3. New York's Online Invasive Species Database and Mapping System What is iMapInvasives?

    E-Print Network [OSTI]

    Berkowitz, Alan R.

    New York's Online Invasive Species Database and Mapping System What is iMapInvasives? i through batch uploads and quality- controlled online submissions. The New York Natural Heritage Program, and map data www.NYimapinvasives.org Questions? Contact: imapinvasives@nynhp.org Supported by the New York

  4. MINUTES MAPS Board Meeting April 9, 2013, MAPS Office 4-6:30pm

    E-Print Network [OSTI]

    Hitchcock, Adam P.

    operations vs. strategic planning) Must have qualifications and characteristics Must have integrity in MAPS control b. Some changes have already been made c. Things to post include: by-laws, new President. Arlen to lead discussion) c. Discussion of MAPS handbooks and production MAPS handbook

  5. repulsion and quantization in almost-harmonic maps, and asymptotics of the harmonic map flow

    E-Print Network [OSTI]

    Topping, Peter

    .2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Almost-harmonic maps - the proof of Theorem 1.2 13 2.1 Basic technology Topping #3; Abstract We present an analysis of bounded-energy low-tension maps between 2-spheres, we show that we can establish a `quantization estimate' which constrains the energy of the map to lie

  6. Pathogenicity of the BRCA1 Missense Variant M1775K is Determined by the Disruption of the BRCT Phosphopeptide-Binding Pocket: a Multi-Modal Approach

    SciTech Connect (OSTI)

    Tischkowitz,M.; Hamel, N.; Carvalho, M.; Birrane, G.; Soni, A.; van Beers, E.; Joosse, S.; Wong, N.; Novak, D.; et al

    2008-01-01

    A number of germ-line mutations in the BRCA1 gene confer susceptibility to breast and ovarian cancer. However, it remains difficult to determine whether many single amino-acid (missense) changes in the BRCA1 protein that are frequently detected in the clinical setting are pathologic or not. Here, we used a combination of functional, crystallographic, biophysical, molecular and evolutionary techniques, and classical genetic segregation analysis to demonstrate that the BRCA1 missense variant M1775K is pathogenic. Functional assays in yeast and mammalian cells showed that the BRCA1 BRCT domains carrying the amino-acid change M1775K displayed markedly reduced transcriptional activity, indicating that this variant represents a deleterious mutation. Importantly, the M1775K mutation disrupted the phosphopeptide-binding pocket of the BRCA1 BRCT domains, thereby inhibiting the BRCA1 interaction with the proteins BRIP1 and CtIP, which are involved in DNA damage-induced checkpoint control. These results indicate that the integrity of the BRCT phosphopeptide-binding pocket is critical for the tumor suppression function of BRCA1. Moreover, this study demonstrates that multiple lines of evidence obtained from a combination of functional, structural, molecular and evolutionary techniques, and classical genetic segregation analysis are required to confirm the pathogenicity of rare variants of disease-susceptibility genes and obtain important insights into the underlying pathogenetic mechanisms.

  7. PS1-10jh: The disruption of a main-sequence star of near-solar composition

    SciTech Connect (OSTI)

    Guillochon, James; Manukian, Haik; Ramirez-Ruiz, Enrico [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)

    2014-03-01

    When a star comes within a critical distance to a supermassive black hole (SMBH), immense tidal forces disrupt the star, resulting in a stream of debris that falls back onto the SMBH and powers a luminous flare. In this paper, we perform hydrodynamical simulations of the disruption of a main-sequence star by an SMBH to characterize the evolution of the debris stream after a tidal disruption. We demonstrate that this debris stream is confined by self-gravity in the two directions perpendicular to the original direction of the star's travel and as a consequence has a negligible surface area and makes almost no contribution to either the continuum or line emission. We therefore propose that any observed emission lines are not the result of photoionization in this unbound debris, but are produced in the region above and below the forming elliptical accretion disk, analogous to the broad-line region (BLR) in steadily accreting active galactic nuclei. As each line within a BLR is observationally linked to a particular location in the accretion disk, we suggest that the absence of a line indicates that the accretion disk does not yet extend to the distance required to produce that line. This model can be used to understand the spectral properties of the tidal disruption event PS1-10jh, for which He II lines are observed, but the Balmer series and He I are not. Using a maximum likelihood analysis, we show that the disruption of a main-sequence star of near-solar composition can reproduce this event.

  8. HARMONIC MAPS AND INTEGRABLE SYSTEMS EMMA CARBERRY

    E-Print Network [OSTI]

    Sydney, University of

    HARMONIC MAPS AND INTEGRABLE SYSTEMS EMMA CARBERRY Abstract. This article has two purposes. The first is to give an ex- pository account of the integrable systems approach to harmonic maps from surfaces to Lie groups and symmetric spaces, focusing on spectral curves for harmonic 2-tori. The most

  9. Current trends in mapping human genes

    SciTech Connect (OSTI)

    Mckusick, V.A. )

    1991-01-01

    The human is estimated to have at least 50,000 expressed genes (gene loci). Some information is available concerning about 5,000 of these gene loci and about 1,900 have been mapped, i.e., assigned to specific chromosomes (and in most instances particular chromosome regions). Progress has been achieved by a combination of physical mapping (e.g., study of somatic cell hybrids and chromosomal in situ hybridization) and genetic mapping (e.g., genetic linkage studies). New methods for both physical and genetic mapping are expanding the armamentarium. The usefulness of the mapping information is already evident; the spin-off from the Human Genome Project (HGP) begins immediately. the complete nucleotide sequence is the ultimate map of the human genome. Sequencing, although already under way for limited segments of the genome, will await further progress in gene mapping, and in particular creation of contig maps for each chromosome. Meanwhile the technology of sequencing and sequence information handling will be developed.

  10. ON THE WELDED TUBE MAP BENJAMIN AUDOUX

    E-Print Network [OSTI]

    Audoux, Benjamin

    ON THE WELDED TUBE MAP BENJAMIN AUDOUX Abstract. This paper investigates the so-called Tube map which connects welded knots, that is a quotient of the virtual knot theory, to ribbon torus-knots with a given filling are in one-to-one correspondence with welded knots before quo- tient under classical

  11. Time and maps Menno-Jan Kraak

    E-Print Network [OSTI]

    Time and maps Menno-Jan Kraak Time and maps ! · Why interested in time? · What is time and · How is time perceived? · How is time represented? Why interested in time? GIScience perspective) - analysis of changes over time - analysis of patterns of change over time ! · Development of methods

  12. INFORMATION SURFING FOR RADIATION MAP BUILDING

    E-Print Network [OSTI]

    technology in radiation detection is not well suited for the type of scenario described. Currently, searchingINFORMATION SURFING FOR RADIATION MAP BUILDING R. A. Cortez , H. G. Tanner , R. Lumia , and C. T a group of mobile sensors to map radiation over a given planar polygonal region. The advantage

  13. Title: Digital Map of Ontario Data Creator /

    E-Print Network [OSTI]

    Title: Digital Map of Ontario Data Creator / Copyright Owner: Ontario Ministry of Natural Resources Publisher: Ontario Ministry of Natural Resources Edition: N/A Versions: N/A Publication Date: 2003 Coverage Date(s): N/A Updates: N/A Abstract: The Digital Map of Ontario is a digital product digitized from

  14. INFORMATION SURFING FOR RADIATION MAP BUILDING

    E-Print Network [OSTI]

    Tanner, Herbert G.

    to envi- ronmental changes, as well as human retasking. Computer simulations and experiments are conducted radiation detectors do not provide any visual or statistical data map of the area in question. If humanINFORMATION SURFING FOR RADIATION MAP BUILDING R. A. Cortez , H. G. Tanner , R. Lumia , and C. T

  15. Good Maps are Straight \\Lambda Eric Harley

    E-Print Network [OSTI]

    Harley, Eric R.

    of the Human Genome Project is to con­ struct detailed physical maps of the human genome and the genomes for Genome Research Cambridge, MA 02139, USA nat@genome.wi.mit.edu Abstract This paper proposes a simplified approach to the assembly of large physical genome maps. The approach focuses on two key problems: (i

  16. COST ACTION MAPPING AND THE CITIZEN SENSOR

    E-Print Network [OSTI]

    (hazard/risk/vulnerability/damage) ICC 2013, Dresden www.unu-drm.nl Training & capacity building scientist or plain civilian Lay or professional Active or passive Volunteer or paid contributor (e base mapping with GMM/OpenStreetMap (OSM) `Open community'; detailed and accurate Building damage

  17. GROUNDWATER MAPPING AND ASSESSMENT IN BRITISH COLUMBIA

    E-Print Network [OSTI]

    #12;r GROUNDWATER MAPPING AND ASSESSMENT IN BRITISH COLUMBIA VOLUME I: Review and Recommendations and Turner Groundwater Consultants P.O. Box 43001 Victoria, B.C. V8X 3G2 October 1993 #12;DISCLAIMER of Groundwater Information in British Columbia 6 2.1 Sources of Groundwater Mapping and Assessment Information 6

  18. Exploring the Deep... Using ArcMap

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    started Exploring the Ocean Environment Introduction #12;The ArcMap User Interface Table of Contents off the layers above that layer in the Table of Contents. Table of Contents A list of data frames of the current map file. Coordinates Displays the coordinates, in the currently-selected units, of the cursor

  19. Exact map through ideal bends (again?)

    SciTech Connect (OSTI)

    Michelotti, L.

    1995-06-01

    There are three logically independent facets to calculating the transfer map through a bend magnet: physics, geometry, and representation. We will derive the exact map for transit through ideal bends while separating these three, esp., isolating the geometry problem from the other two.

  20. Biharmonic Volumetric Mapping Using Fundamental Solutions

    E-Print Network [OSTI]

    Li, Xin "Shane"

    Biharmonic Volumetric Mapping Using Fundamental Solutions Huanhuan Xu, Wuyi Yu, Shiyuan Gu, and Xin Li, Member, IEEE Computer Society Abstract--We propose a biharmonic model for cross-object volumetric individually. The biharmonic volumetric mapping can be performed in each subregion separately. Unlike

  1. Task mapping for non-contiguous allocations.

    SciTech Connect (OSTI)

    Leung, Vitus Joseph; Bunde, David P. [Knox College, Galesburg, IL; Ebbers, Johnathan [Knox College, Galesburg, IL; Price, Nicholas W. [Knox College, Galesburg, IL; Swank, Matthew [Knox College, Galesburg, IL; Feer, Stefan P. [3M Health Information Systems, Inc., Wallingford, CT; Rhodes, Zachary D. [Allstate Corporation, Northbrook, IL

    2013-02-01

    This paper examines task mapping algorithms for non-contiguously allocated parallel jobs. Several studies have shown that task placement affects job running time for both contiguously and non-contiguously allocated jobs. Traditionally, work on task mapping either uses a very general model where the job has an arbitrary communication pattern or assumes that jobs are allocated contiguously, making them completely isolated from each other. A middle ground between these two cases is the mapping problem for non-contiguous jobs having a specific communication pattern. We propose several task mapping algorithms for jobs with a stencil communication pattern and evaluate them using experiments and simulations. Our strategies improve the running time of a MiniApp by as much as 30% over a baseline strategy. Furthermore, this improvement increases markedly with the job size, demonstrating the importance of task mapping as systems grow toward exascale.

  2. Interaction, protection and epidemics

    E-Print Network [OSTI]

    Goyal, Sanjeev; Vigier, Adrien

    2015-03-06

    unique equilibrium: individuals who invest in protection choose to interact more relative to those who do not invest in protection. Changes in the contagiousness of the disease have non-monotonic effects: as a result interaction initially falls...

  3. Derivative of Map of Banach algebra

    E-Print Network [OSTI]

    Aleks Kleyn

    2015-05-14

    Let $A$ be Banach algebra over commutative ring $D$. The map $f:A\\rightarrow A\\ $ is called differentiable in the Gateaux sense, if $$f(x+a)-f(x)=\\partial f(x)\\circ a+o(a)$$ where the Gateaux derivative $\\partial f(x)$ of map $f$ is linear map of increment $a$ and $o$ is such continuous map that $$ \\lim_{a\\rightarrow 0}\\frac{|o(a)|}{|a|}=0 $$ Assuming that we defined the Gateaux derivative $\\partial^{n-1} f(x)$ of order $n-1$, we define $$ \\partial^n f(x)\\circ(a_1\\otimes...\\otimes a_n) =\\partial(\\partial^{n-1} f(x)\\circ(a_1\\otimes...\\otimes a_{n-1}))\\circ a_n $$ the Gateaux derivative of order $n$ of map $f$. Since the map $f(x)$ has all derivatives, then the map $f(x)$ has Taylor series expansion $$ f(x)=\\sum_{n=0}^{\\infty}(n!)^{-1}\\partial^n f(x_0)\\circ(x-x_0)^n $$

  4. Process maps for plasma spray. Part II: Deposition and properties

    SciTech Connect (OSTI)

    XIANGYANG,JIANG; MATEJICEK,JIRI; KULKARNI,ANAND; HERMAN,HERBERT; SAMPATH,SANJAY; GILMORE,DELWYN L.; NEISER JR.,RICHARD A

    2000-03-28

    This is the second paper of a two part series based on an integrated study carried out at the State University of New York at Stony Brook and Sandia National Laboratories. The goal of the study is the fundamental understanding of the plasma-particle interaction, droplet/substrate interaction, deposit formation dynamics and microstructure development as well as the deposit property. The outcome is science-based relationships, which can be used to link processing to performance. Molybdenum splats and coatings produced at 3 plasma conditions and three substrate temperatures were characterized. It was found that there is a strong mechanical/thermal interaction between droplet and substrate, which builds up the coatings/substrate adhesion. Hardness, thermal conductivity, and modulus increase, while oxygen content and porosity decrease with increasing particle velocity. Increasing deposition temperature resulted in dramatic improvement in coating thermal conductivity and hardness as well as increase in coating oxygen content. Indentation reveals improved fracture resistance for the coatings prepared at higher deposition temperature. Residual stress was significantly affected by deposition temperature, although not significant by particle energy within the investigated parameter range. Coatings prepared at high deposition temperature with high-energy particles suffered considerably less damage in wear tests. Possible mechanisms behind these changes are discussed within the context of relational maps which are under development.

  5. Technology Forum Map and List of Awardees' Posters and Exhibits...

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

    Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum map and list of exhibits.pdf More...

  6. Optimal Path Generation for Monocular Simultaneous Localization and Mapping 

    E-Print Network [OSTI]

    Roorda, Timothy Isaac

    2014-09-01

    Monocular Simultaneous Localization and Mapping (MonoSLAM), a derivative of Simultaneous Localization and Mapping (SLAM), is a navigation method for autonomous vehicles that uses only an inertial measurement unit and a camera to map the environment...

  7. Advancement of cotton (Gossypium) radiation hybrid mapping tools 

    E-Print Network [OSTI]

    Todd, Steven Michael

    2009-05-15

    The assembly of a robust structural genomics system requires the development and integration of multiple types of genome maps. This research focused on the development of a relatively new means of plant genome mapping, radiation hybrid mapping...

  8. Mapping the geography of student persistence at a research university

    E-Print Network [OSTI]

    Easterly, Douglas P.

    2012-01-01

    D. (2012). Mapping the Geography of Student Persistence at aSAN DIEGO Mapping the Geography of Student Persistence at aDISSERTATION Mapping the Geography of Student Persistence at

  9. Swift J1112.2-8238: A Candidate Relativistic Tidal Disruption Flare

    E-Print Network [OSTI]

    Brown, G C; Stanway, E R; Tanvir, N R; Cenko, S B; Berger, E; Chornock, R; Cucchiaria, A

    2015-01-01

    We present observations of Swift J1112.2-8238, and identify it as a candidate relativistic tidal disruption flare (rTDF). The outburst was first detected by Swift/BAT in June 2011 as an unknown, long-lived (order of days) $\\gamma$-ray transient source. We show that its position is consistent with the nucleus of a faint galaxy for which we establish a likely redshift of $z=0.89$ based on a single emission line that we interpret as the blended [OII]$\\lambda3727$ doublet. At this redshift, the peak X/$\\gamma$-ray luminosity exceeded $10^{47}$ ergs s$^{-1}$, while a spatially coincident optical transient source had $i^{\\prime} \\sim 22$ (M$_g \\sim -21.4$ at $z=0.89$) during early observations, $\\sim 20$ days after the Swift trigger. These properties place Swift J1112.2-8238 in a very similar region of parameter space to the two previously identified members of this class, Swift J1644+57 and Swift J2058+0516. As with those events the high-energy emission shows evidence for variability over the first few days, while...

  10. Hyperaccretion during tidal disruption events: Weakly bound debris envelopes and jets

    SciTech Connect (OSTI)

    Coughlin, Eric R.; Begelman, Mitchell C., E-mail: eric.coughlin@colorado.edu, E-mail: mitch@jila.colorado.edu [Also at Department of Astrophysical and Planetary Sciences, University of Colorado, UCB 391, Boulder, CO 80309, USA. (United States)

    2014-02-01

    After the destruction of the star during a tidal disruption event (TDE), the cataclysmic encounter between a star and the supermassive black hole (SMBH) of a galaxy, approximately half of the original stellar debris falls back onto the hole at a rate that can initially exceed the Eddington limit by orders of magnitude. We argue that the angular momentum of this matter is too low to allow it to attain a disk-like configuration with accretion proceeding at a mildly super-Eddington rate, the excess energy being carried away by a combination of radiative losses and radially distributed winds. Instead, we propose that the infalling gas traps accretion energy until it inflates into a weakly bound, quasi-spherical structure with gas extending nearly to the poles. We study the structure and evolution of such 'zero-Bernoulli accretion' flows as a model for the super-Eddington phase of TDEs. We argue that such flows cannot stop extremely super-Eddington accretion from occurring, and that once the envelope is maximally inflated, any excess accretion energy escapes through the poles in the form of powerful jets. We compare the predictions of our model to Swift J1644+57, the putative super-Eddington TDE, and show that it can qualitatively reproduce some of its observed features. Similar models, including self-gravity, could be applicable to gamma-ray bursts from collapsars and the growth of SMBH seeds inside quasi-stars.

  11. The Composition Of A Disrupted Extrasolar Planetesimal At SDSS J0845+2257 (Ton 345)

    E-Print Network [OSTI]

    Wilson, David J; Koester, Detlev; Toloza, Odette; Pala, Anna F; Breedt, Elmé; Parsons, Steven G

    2015-01-01

    We present a detailed study of the metal-polluted DB white dwarf SDSS J0845+2257 (Ton 345). Using high-resolution HST/COS and VLT spectroscopy, we have detected hydrogen and eleven metals in the atmosphere of the white dwarf. The origin of these metals is almost certainly the circumstellar disc of dusty and gaseous debris from a tidally-disrupted planetesimal, accreting at a rate of 1.6E10 gs^-1. Studying the chemical abundances of the accreted material demonstrates that the planetesimal had a composition similar to the Earth, dominated by rocky silicates and metallic iron, with a low water content. The mass of metals within the convection zone of the white dwarf corresponds to an asteroid of at least ~130-170 km in diameter, although the presence of ongoing accretion from the debris disc implies that the planetesimal was probably larger than this. While a previous abundance study of the accreted material has shown an anomalously high mass fraction of carbon (15 percent) compared to the bulk Earth, our indepe...

  12. Adsorption of selected pharmaceuticals and an endocrine disrupting compound by granular activated carbon. 2. Model prediction

    SciTech Connect (OSTI)

    Yu, Z.; Peldszus, S.; Huck, P.M. [University of Waterloo, Waterloo, ON (Canada). NSERC Chair in Water Treatment

    2009-03-01

    The adsorption of two representative pharmaceutically active compounds (PhACs) naproxen and carbamazepine and one endocrine disrupting compound (EDC) nonylphenol was studied in pilot-scale granular activated carbon (GAC) adsorbers using post-sedimentation (PS) water from a full-scale drinking water treatment plant. The GAC adsorbents were coal-based Calgon Filtrasorb 400 and coconut shell-based PICA CTIF TE. Acidic naproxen broke through fastest while nonylphenol was removed best, which was consistent with the degree to which fouling affected compound removals. Model predictions and experimental data were generally in good agreement for all three compounds, which demonstrated the effectiveness and robustness of the pore and surface diffusion model (PSDM) used in combination with the time-variable parameter approach for predicting removals at environmentally relevant concentrations (i.e., ng/L range). Sensitivity analyses suggested that accurate determination of film diffusion coefficients was critical for predicting breakthrough for naproxen and carbamazepine, in particular when high removals are targeted. Model simulations demonstrated that GAC carbon usage rates (CURs) for naproxen were substantially influenced by the empty bed contact time (EBCT) at the investigated conditions. Model-based comparisons between GAC CURs and minimum CURs for powdered activated carbon (PAC) applications suggested that PAC would be most appropriate for achieving 90% removal of naproxen, whereas GAC would be more suitable for nonylphenol. 25 refs., 4 figs., 1 tab.

  13. Variations in Map Products Demonstrated During the FRMAC Fukushima Daiichi Response

    SciTech Connect (OSTI)

    Pemberton, W. J.

    2012-04-03

    This presentation provides a brief summary of the Fukushima Daiichi disaster, discussion on map uses and production, early phase maps, intermediate phase maps, and late phase maps.

  14. A Literature Review on Value Stream Mapping with a Case Study of Applying Value Stream Mapping on Research Process 

    E-Print Network [OSTI]

    Li, Xiaoqi

    2014-04-23

    has two main objectives. The first is an in-depth literature review on value stream mapping, especially concerning useful value stream mapping tools and the application of value stream mapping in construction industry. The literature review of value...

  15. Symplectic Maps and Chromatic Optics in Particle Accelerators...

    Office of Scientific and Technical Information (OSTI)

    Symplectic Maps and Chromatic Optics in Particle Accelerators Citation Details In-Document Search Title: Symplectic Maps and Chromatic Optics in Particle Accelerators You are...

  16. Symplectic Maps and Chromatic Optics in Particle Accelerators...

    Office of Scientific and Technical Information (OSTI)

    Symplectic Maps and Chromatic Optics in Particle Accelerators Citation Details In-Document Search Title: Symplectic Maps and Chromatic Optics in Particle Accelerators Authors: Cai,...

  17. Complete LNG Terminal Status Maps | Department of Energy

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

    Complete LNG Terminal Status Maps Complete LNG Terminal Status Maps A series of slides showing the status of various LNG terminals (existing, under construction, proposed, etc.) in...

  18. NREL: Energy Efficiency Potential Mapping (Analysis & Tools for...

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

    Energy Efficiency Potential Mapping (Analysis & Tools for Building America and Industry - 2015 Peer Review NREL: Energy Efficiency Potential Mapping (Analysis & Tools for Building...

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

    Open Energy Info (EERE)

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

  20. Mapping Soil Carbon from Cradle to Grave: Identifying the Microbial...

    Office of Scientific and Technical Information (OSTI)

    Conference: Mapping Soil Carbon from Cradle to Grave: Identifying the Microbial Blueprint for Root-carbon Transformations in Soil Citation Details In-Document Search Title: Mapping...

  1. NREL: Energy Efficiency Potential Mapping (Analysis & Tools for...

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

    NREL: Energy Efficiency Potential Mapping (Analysis & Tools for Building America and Industry - 2015 Peer Review NREL: Energy Efficiency Potential Mapping (Analysis & Tools for...

  2. Mapping and Assessment of the United States Ocean Wave Energy...

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

    Mapping and Assessment of the United States Ocean Wave Energy Resource Mapping and Assessment of the United States Ocean Wave Energy Resource This report describes the analysis and...

  3. Mapping Climate Change Vulnerability and Impact Scenarios - A...

    Open Energy Info (EERE)

    Mapping Climate Change Vulnerability and Impact Scenarios - A Guidebook for Sub-national Planners Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Mapping Climate Change...

  4. Energy Department Announces New Mapping Initiative to Advance...

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

    Department Announces New Mapping Initiative to Advance North American Carbon Storage Efforts Energy Department Announces New Mapping Initiative to Advance North American Carbon...

  5. Energy Department Announces New Mapping Initiative to Advance...

    Energy Savers [EERE]

    Energy Department Announces New Mapping Initiative to Advance North American Carbon Storage Efforts Energy Department Announces New Mapping Initiative to Advance North American...

  6. THE EVALUATION MAP AND HOMOLOGY Daniel H. Gottlieb

    E-Print Network [OSTI]

    tant role in the study of evaluation maps of mapping spaces other than XX . The ... The preparation of this paper was supported in part by the National Science.

  7. Infinitely many periodic attractors for holomorphic maps of 2 variables

    E-Print Network [OSTI]

    1910-30-92

    Finally, we apply a linear map which contracts in the horizontal direction and expands in the vertical direction. With the appropriate choice of these maps, the ...

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

    Open Energy Info (EERE)

    Field Mapping At Central Nevada Seismic Zone Region (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At...

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

    Open Energy Info (EERE)

    Field Mapping At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At...

  10. Field Mapping At Valles Caldera - Redondo Geothermal Area (Goff...

    Open Energy Info (EERE)

    this new map and cross sections represent the most current understanding of the stratigraphy, structure, and thermal gradients of the Valles caldera. The map and cross sections...

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

    Open Energy Info (EERE)

    this new map and cross sections represent the most current understanding of the stratigraphy, structure, and thermal gradients of the Valles caldera. The map and cross sections...

  12. The Impact of Using Derived Fuel Consumption Maps to Predict...

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

    The Impact of Using Derived Fuel Consumption Maps to Predict Fuel Consumption The Impact of Using Derived Fuel Consumption Maps to Predict Fuel Consumption Poster presented at the...

  13. Thermal Maps of Gases in Heterogeneous Reactions

    E-Print Network [OSTI]

    Jarenwattananon, Nanette N; Otto, Trenton; Melkonian, Arek; Morris, William; Burt, Scott R; Yaghi, Omar M; Bouchard, Louis-S

    2015-01-01

    Over 85% of all chemical industry products are made using catalysts, with the overwhelming majority of these employing heterogeneous catalysts functioning at the gas-solid interface. Consequently, optimizing catalytic reactor design attracts much effort. Such optimization relies on heat transfer and fluid dynamics modeling coupled to surface reaction kinetics. The complexity of these systems demands many approximations, which can only be tested with experimental observations of quantities such as temperature, pressure, concentrations, flow rates, etc. One essential measurement is a map of the spatial variation in temperature throughout the catalyst bed. We present here the first non-invasive maps of gas temperatures in catalyst-filled reactors, including high spatial resolution maps in microreactors enabled by parahydrogen. The thermal maps reveal energy flux patterns whose length scale correlates with the catalyst packing. By exploiting the motional averaging under a weak applied magnetic-field gradient, the...

  14. Solar America Initiative (Across America Map)

    SciTech Connect (OSTI)

    Not Available

    2007-06-01

    This factsheet gives an overview of the Solar America Initiative (SAI) using a map to show locations of the Solar America Cities, Solar America Showcases and other market transformation and research and development projects.

  15. Mental mapping abilities in domestic swine 

    E-Print Network [OSTI]

    Scallan, Elizabeth Marie

    2001-01-01

    The presence of the mental mapping abilities, documented in animals such as chimpanzees, squirrels, and birds, was investigated in domestic pigs. Sixteen young, weanling, Landrace x Yorkshire crossbred pigs were selected and placed in two replicate...

  16. GIS-based energy consumption mapping 

    E-Print Network [OSTI]

    Balta, Chrysi

    2014-11-27

    This project aims to provide a methodology to map energy consumption of the housing stock at a city level and visualise and evaluate different retrofitting scenarios. It is based on an engineering, bottom-up approach. It ...

  17. University of Arkansas GIS and Maps

    E-Print Network [OSTI]

    Capogna, Luca

    University of Arkansas GIS and Maps Large Format Scanner 1. Intent: The large format scanner as the trainers of the equipment. Reference Staff: · Kate Dougherty · Donna Daniels · Will Bryan (GIS graduate

  18. Science Maps in Action Dr. Katy Brner

    E-Print Network [OSTI]

    Menczer, Filippo

    Science Maps in Action Dr. Katy Börner Cyberinfrastructure for Network Science Center, Director Information Visualization Laboratory, Director School of Library and Information Science Indiana University Computational Scientometrics: Studying Science by Scientific Means Börner, Katy, Chen, Chaomei, and Boyack

  19. Mapping molecular dynamics computations to hypercubes 

    E-Print Network [OSTI]

    Lakamsani, Vamsee Krishna

    1993-01-01

    This thesis proposes an approach for systematic modeling, mapping and performance analysis of a Grand Challenge application problem in computational biology called Molecular Dynamics Simulation of Proteins. Molecular Dynamics (MD) is an important...

  20. HCEI Road Map: 2011 Edition (Brochure)

    SciTech Connect (OSTI)

    Braccio, R.; Finch, P.

    2011-08-01

    This road map outlines the 2011 key goals and strategies of the Hawaii Clean Energy Initiative, was founded based on a Memorandum of Understanding between the State of Hawaii and the U.S. Department of Energy in 2008.

  1. CCRS Landcover Maps From Satellite Data

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

    Trishchenko, Alexander

    The Canadian Centre for Remote Sensing (CCRS) presents several landcover maps over the SGP CART site area (32-40N, 92-102W) derived from satellite data including AVHRR, MODIS, SPOT vegetation data, and Landsat satellite TM imagery.

  2. CCRS Landcover Maps From Satellite Data

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

    Trishchenko, Alexander

    2008-01-15

    The Canadian Centre for Remote Sensing (CCRS) presents several landcover maps over the SGP CART site area (32-40N, 92-102W) derived from satellite data including AVHRR, MODIS, SPOT vegetation data, and Landsat satellite TM imagery.

  3. Glenda Romn Geographic Mapping Technologies, Corp.

    E-Print Network [OSTI]

    Gilbes, Fernando

    Government Nature Conservation Social Conflicts Energy Education Agriculture Economic Recovery Pollution Mapping Iowa Floods Bihar, India #12;Utilidades & Infraestructura Network Infrastructure Germany.S. Wells & Pipelines Mexico Oil & Gas Leases Gulf of Mexico Well Production Canada Petroleum Resources

  4. UNBC Campus Map PRINCE GEORGE CAMPUS

    E-Print Network [OSTI]

    Northern British Columbia, University of

    UNBC Campus Map PRINCE GEORGE CAMPUS Continuing Studies Office UNBC Bookstore Security Office in the Conference & Fitness Centre (Building 6). #12;UNBC Prince George Campus Campus Main Entrance Parking Lot B

  5. Maps of Costa Rica; an annotated cartobibliography

    E-Print Network [OSTI]

    Palmerlee, Albert E.

    1965-01-01

    whenever they have been uncovered in the course of the investigation. Careful attention has also been paid to the three notable listings known to the author: Luis Dobles Segreda's Lista de mapas parciales o totales de Costa Rica (San José, 1928), Jorge... A. Lines' Bibliografia aborigen de Costa Rica (San José, 1944), and the American Geographical Society of New York's Catalog of Maps of Hispanic America (New York, 1930-1932). The pertinent maps from these sources have been included when copies...

  6. Integral of Map into Abelian $?$-group

    E-Print Network [OSTI]

    Aleks Kleyn

    2014-03-12

    The common in ring, module and algebra is that they are Abelian group with respect to addition. This property is enough to study integration. I treat integral of measurable map into normed Abelian $\\Omega$-group. Theory of integration of maps into $\\Omega$-group has a lot of common with theory of integration of functions of real variable. However I had to change some statements, since they implicitly assume either compactness of range or total order in $\\Omega$-group.

  7. CHAOS FROM MAPS Lecture 7: 1-dimensional

    E-Print Network [OSTI]

    Read, Peter L.

    7.1.2 xn+1 = cos xn Fig. 7.1.2 xn x through damped oscillations. 4 #12;7.2 The Logistic Map in lecture 2. Fig. 7.2.1 Let 0 r 4, 0 x 1 map is a parabola with maximum value of r/4 at x = 1 which repeats every 4 generations period-4 cycle. Fig. 7.2.4 Further period doublings to cycles

  8. Effect of noise on the standard mapping

    SciTech Connect (OSTI)

    Karney, C.F.F.; Rechester, A.B.; White, R.B.

    1981-03-01

    The effect of a small amount of noise on the standard mapping is considered. Whenever the standard mapping possesses accelerator models (where the action increases approximately linearly with time), the diffusion coefficient contains a term proportional to the reciprocal of the variance of the noise term. At large values of the stochasticity parameter, the accelerator modes exhibit a universal behavior. As a result the dependence of the diffusion coefficient on stochasticity parameter also shows some universal behavior.

  9. Extinction Maps in the WFAU Archives

    E-Print Network [OSTI]

    Cross, Nicholas

    2015-01-01

    A brief set of notes about the database design for 3D maps of dust extinction in the WFAU Archives, which support data from UKIRT-WFCAM, VISTA and VST. The notes also detail typical use cases, such as getting colour-excesses, extinction-corrections, spectral energy distributions and colour-magnitude diagrams and demonstrate the SQL queries to return data, along with examples from VVV DR2 with bulge extinction maps from Chen et al. (2013).

  10. Comparative Mapping of the Alpaca Genome 

    E-Print Network [OSTI]

    Fagundes De Avila, Felipe

    2014-08-06

    and overgo primers and the isolated BAC clones for each marker. BAC clones in bold were used for FISH mapping ...................................................................................................... 50 Table 3. Summary of cytogenetic... ............................................................ 83 Table 5. List of all gene-specific PCR and overgo primers, and the isolated BAC clones. BAC clones in bold were used for FISH mapping ................... 85 Table 6. Chromosomal locations (chromosome:Mb position) of markers used...

  11. What is Tandem affinity purification (TAP)? "Erwin Schrdinger Prize 2008 Goes to Researchers at the Max Delbrck Center First Map Showing Human Protein

    E-Print Network [OSTI]

    Skop, Ahna

    to Researchers at the Max Delbrück Center First Map Showing Human Protein Interactions. N.p., n.d. Web. 11 Apr. 2015. "Dystrophin and Duchenne Muscular Dystrophy." Protein-protein Interactions -. N.p., n.d. Web. 11 and Their Importance. EMBL-EBI, n.d. Web. 14 Apr. 2015. #12;3 How can you identify interacting proteins? #12;4 What

  12. Mechanical interactions of UIS support columns. [LMFBR

    SciTech Connect (OSTI)

    Kennedy, J.M.; Belytschko, T.B.

    1983-01-01

    Code development involving above-core structures (ACS) has recently focused on modeling the complexities of mechanical interactions in the ACS support columns which play a very important role in their behavior. These developments are directed toward two considerations: (1) the prediction of the forces exerted by the column in a hypothetical core-disruptive accident (HCDA) in order that the motion of the ACS can be predicted in a coupled fluid-structure analysis, (2) the calculation of the strains and deformations of the support columns so that situations which lead to complete failure can be identified. Finite element capabilities have been developed to handle various types of plant design for the analysis of coupled hydrodynamics and structural response. Beam elements, which previously represented the support columns were able to account for geometric nonlinearities and material nonlinearities, however, changes in the column cross section were not treated. Therefore, one of the aims of this study was to examine the effect of the change in cross section on the behavior of the support columns. A second effect which has been studied is the behavior of support columns consisting of two concentric cylinders.

  13. Mast cell chymase induces smooth muscle cell apoptosis by disrupting NF-{kappa}B-mediated survival signaling

    SciTech Connect (OSTI)

    Leskinen, Markus J. [Wihuri Research Institute, Kalliolinnantie 4, FI-00140 Helsinki (Finland); Heikkilae, Hanna M. [Wihuri Research Institute, Kalliolinnantie 4, FI-00140 Helsinki (Finland); Speer, Mei Y. [Bioengineering Department, University of Washington, Seattle, WA 98195 (United States); Hakala, Jukka K. [Wihuri Research Institute, Kalliolinnantie 4, FI-00140 Helsinki (Finland); Laine, Mika [Department of Medicine, Helsinki University Central Hospital and Minerva Institute for Medical Research, Helsinki (Finland); Kovanen, Petri T. [Wihuri Research Institute, Kalliolinnantie 4, FI-00140 Helsinki (Finland); Lindstedt, Ken A. [Wihuri Research Institute, Kalliolinnantie 4, FI-00140 Helsinki (Finland)]. E-mail: ken.lindstedt@wri.fi

    2006-05-01

    Chymase released from activated mast cells induces apoptosis of vascular smooth muscle cells (SMCs) in vitro by degrading the pericellular matrix component fibronectin, so causing disruption of focal adhesion complexes and Akt dephosphorylation, which are necessary for cell adhesion and survival. However, the molecular mechanisms of chymase-mediated apoptosis downstream of Akt have remained elusive. Here, we show by means of RT-PCR, Western blotting, EMSA, immunocytochemistry and confocal microscopy, that chymase induces SMC apoptosis by disrupting NF-{kappa}B-mediated survival signaling. Following chymase treatment, the translocation of active NF-{kappa}B/p65 to the nucleus was partly abolished and the amount of nuclear p65 was reduced. Pretreatment of SMCs with chymase also inhibited LPS- and IL-1{beta}-induced nuclear translocation of p65. The chymase-induced degradation of p65 was mediated by active caspases. Loss of NF-{kappa}B-mediated transactivation resulted in downregulation of bcl-2 mRNA and protein expression, leading to mitochondrial swelling and release of cytochrome c. The apoptotic process involved activation of both caspase 9 and caspase 8. The results reveal that, by disrupting the NF-{kappa}B-mediated survival-signaling pathway, activated chymase-secreting mast cells can mediate apoptosis of cultured arterial SMCs. Since activated mast cells colocalize with apoptotic SMCs in vulnerable areas of human atherosclerotic plaques, they may participate in the weakening and rupture of atherosclerotic plaques.

  14. Regulation of Cdc25C by ERK-MAP Kinases during the G2/M Transition

    E-Print Network [OSTI]

    Kirschner, Marc W.

    Regulation of Cdc25C by ERK-MAP Kinases during the G2/M Transition Ruoning Wang,1,4 Guangan He,1 of ERK2, is a major Cdc25 phosphorylating kinase in extracts of M phase- arrested Xenopus eggs. In a mammalian cell line, ERK1/2 interacts with Cdc25C in interphase and phosphorylates Cdc25C at T48 in mitosis

  15. Using genetic algorithms to map first-principles results to model Hamiltonians: Application to the generalized Ising model for alloys

    E-Print Network [OSTI]

    Hart, Gus

    National Renewable Energy Laboratory, Golden, Colorado 80401, USA 2 Department of Physics and Astronomy The cluster expansion method provides a standard framework to map first-principles generated energies optimal interaction set, we periodically "lock out" persistent near-optimal cluster expansions

  16. Mapping biological ideas: Concept maps as knowledge integration tools for evolution education

    E-Print Network [OSTI]

    Schwendimann, Beat Adrian

    2011-01-01

    use of concept mapping in higher education: Applications inin graduate medical education: A role for concept mappinginterest to evolution education, a concept-rich field that

  17. Physical Stability of Long-Term Surface Barriers-Assessment of Potentially Disruptive Natural Events

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access| DepartmentPeerFederal FleetUp inrd IEEE PVSC, SanSciences &] a

  18. Is Gravity an Interaction?

    E-Print Network [OSTI]

    Felix M. Lev

    2010-05-16

    We consider a possibility that gravity is not an interaction but a manifestation of a symmetry based on a Galois field.

  19. Interactivity and Emotion Cinematography

    E-Print Network [OSTI]

    Tomlinson, Bill

    ______________________________________________________________________________ Glorianna Davenport Principal Research Associate Director of Interactive Cinema MIT Media Laboratory Reader______________________________________________________________________________ Thomas Porter Supervising Technical Director Pixar Animation Studios May 1999 #12;TABLE OF CONTENTS: 1

  20. Weak Interaction | Jefferson Lab

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

    Weak Interaction February 22, 2011 Jefferson Lab has an accelerator designed to do incisive medium energy physics. This program is dominated by experiments aimed at developing our...

  1. Nerve-pulse interactions

    SciTech Connect (OSTI)

    Scott, A.C.

    1982-01-01

    Some recent experimental and theoretical results on mechanisms through which individual nerve pulses can interact are reviewed. Three modes of interactions are considered: (1) interaction of pulses as they travel along a single fiber which leads to velocity dispersion; (2) propagation of pairs of pulses through a branching region leading to quantum pulse code transformations; and (3) interaction of pulses on parallel fibers through which they may form a pulse assembly. This notion is analogous to Hebb's concept of a cell assembly, but on a lower level of the neural hierarchy.

  2. MAP, MAC, and Vortex-rings Configurations in the Weinberg-Salam Model

    E-Print Network [OSTI]

    Rosy Teh; Ban-Loong Ng; Khai-Ming Wong

    2015-03-20

    We report on the presence of new axially symmetric monopoles, antimonopoles and vortex-rings solutions of the SU(2)$\\times$U(1) Weinberg-Salam model of electromagnetic and weak interactions. When the $\\phi$-winding number $n=1$, and 2, the configurations are monopole-antimonopole pair (MAP) and monopole-antimonopole chain (MAC) with poles of alternating sign magnetic charge arranged along the $z$-axis. Vortex-rings start to appear from the MAP and MAC configurations when the winding number $n=3$. The MAP configurations possess zero net magnetic charge whereas the MAC configurations possess net magnetic charge of $4\\pi n/e$. In the MAP configurations, the monopole-antimonopole pair is bounded by the ${\\cal Z}^0$ field flux string and there is an electromagnetic current loop encircling it. The monopole and antimonopole possess magnetic charges $\\pm\\frac{4\\pi n}{e}\\sin^2\\theta_W$ respectively. In the MAC configurations there is no string connecting the monopole and the adjacent antimonopole and they possess magnetic charges $\\pm\\frac{4\\pi n}{e}$ respectively. The MAC configurations possess infinite total energy and zero magnetic dipole moment whereas the MAP configurations which are actually sphalerons possess finite total energy and magnetic dipole moment. The configurations were investigated for varying values of Higgs self-coupling constant $0\\leq \\lambda\\leq 40$ at Weinberg angle $\\theta_W=\\frac{\\pi}{4}$.

  3. Interacting Jets from Binary Protostars

    E-Print Network [OSTI]

    G. C. Murphy; T. Lery; S. O'Sullivan; D. Spicer; F. Bacciotti; A. Rosen

    2007-11-20

    We investigate potential models that could explain why multiple proto-stellar systems predominantly show single jets. During their formation, stars most frequently produce energetic outflows and jets. However, binary jets have only been observed in a very small number of systems. We model numerically 3D binary jets for various outflow parameters. We also model the propagation of jets from a specific source, namely L1551 IRS 5, known to have two jets, using recent observations as constraints for simulations with a new MHD code. We examine their morphology and dynamics, and produce synthetic emission maps. We find that the two jets interfere up to the stage where one of them is almost destroyed or engulfed into the second one. We are able to reproduce some of the observational features of L1551 such as the bending of the secondary jet. While the effects of orbital motion are negligible over the jets dynamical timeline, their interaction has significant impact on their morphology. If the jets are not strictly parallel, as in most observed cases, we show that the magnetic field can help the collimation and refocusing of both of the two jets.

  4. Interactive Whiteboards @ Using the Interactive Whiteboards

    E-Print Network [OSTI]

    University of Technology, Sydney

    . Press and hold the power button until it turns GREEN. The IWB now needs to connect to the resident Pen slot Pen tray Power module Keyboard button Right-click button Interactive Whiteboards (IWB) @ UTS is in standby mode, the Power button on the pen tray is unlit. Press the Power button to wake up your

  5. Screening for environmental contaminants and endocrine disruption in wildlife from the Lower Rio Grande Valley, Texas: an ecological and biomarker approach 

    E-Print Network [OSTI]

    Wainwright, Susan Elizabeth

    1998-01-01

    (bancos and resacas) or artificial reservoirs (settling basins) for aquatic habitat. Many of these water bodies receive pesticide drift, urban runoff, and industrial contaminants. Potentially endocrine-disrupting contaminants, such as phthalate esters...

  6. A novel RUNX2 missense mutation predicted to disrupt DNA binding causes cleidocranial dysplasia in a large Chinese family with hyperplastic nails

    E-Print Network [OSTI]

    2007-01-01

    to disrupt DNA binding causes cleidocranial dysplasia in awhich traces (p.L136P) causes showing a change the missensemutation in c.T407C, which causes a change from leucine to

  7. Mapping with crowds and scientists -what is the difference?

    E-Print Network [OSTI]

    of an existing toolset. ! · Neogeography · VGI · Citizen science · Crowd sourcing (turner, 2006) Mapping

  8. Logistic maps General systems Motivating examples in dynamical systems

    E-Print Network [OSTI]

    Climenhaga, Vaughn

    Logistic maps General systems Motivating examples in dynamical systems Vaughn Climenhaga University of Houston October 16, 2012 Vaughn Climenhaga (University of Houston) October 16, 2012 1 / 7 #12;Logistic #12;Logistic maps General systems The logistic map Logistic map: f (x) = x(1 - x) 0 4 x f(x) = 0

  9. FACILITATING DATA EXPLORATION: DYNAMIC QUERIES ON A HEALTH STATISTICS MAP

    E-Print Network [OSTI]

    Golbeck, Jennifer

    . A thematic map of the United States is animated by adjusting sliders displayed on the side of the map. A time.g. proposing that a demographic factor might be linked to a cause of death.) More recently thematic maps helped in order to access the exact rate in an area. Research on map graphic design (e.g.. [2]) shows that careful

  10. Fast Clustering Methods for Genetic Mapping in Plants

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Fast Clustering Methods for Genetic Mapping in Plants Veronika Strnadova, Aydin Buluc, Leonid Mapping Overview "A genetic map is a list of genetic elements ordered according to their co-segregation patterns" [Computational approaches and software tools for genetic linkage map estimation in plants.(2009

  11. MAP: Concentrating Solar Power Across the United States

    Broader source: Energy.gov [DOE]

    Explore our latest map, charting the location of concentrating solar power plants across the country.

  12. Illuminating Massive Black Holes With White Dwarfs: Orbital Dynamics and High Energy Transients from Tidal Interactions

    E-Print Network [OSTI]

    MacLeod, Morgan; Ramirez-Ruiz, Enrico; Guillochon, James; Samsing, Johan

    2014-01-01

    White dwarfs (WDs) can be tidally disrupted only by massive black holes (MBHs) with masses less than approximately $10^5 M_\\odot$. These tidal interactions feed material to the MBH well above its Eddington limit, with the potential to launch a relativistic jet. The corresponding beamed emission is a promising signpost to an otherwise quiescent MBH of relatively low mass. We show that the mass transfer history, and thus the lightcurve, are quite different when the disruptive orbit is parabolic, eccentric, or circular. The mass lost each orbit exponentiates in the eccentric-orbit case leading to the destruction of the WD after several tens of orbits and making it difficult to produce a Swift J1644+57-like lightcurve via this channel. We then examine the stellar dynamics of clusters surrounding these MBHs to show that single-passage WD disruptions are substantially more common than repeating encounters in eccentric orbits. The $10^{49}$ erg s$^{-1}$ peak luminosity of these events makes them visible to cosmologi...

  13. Interactive Holographic Cinema 

    E-Print Network [OSTI]

    Portales, Christopher

    2012-07-16

    HOLOGRAPHIC CINEMA A Thesis by CHRISTOPHER ALBERT PORTALES Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 2012 Major Subject...: Visualization Interactive Holographic Cinema Copyright 2012 Christopher Albert Portales INTERACTIVE HOLOGRAPHIC CINEMA A Thesis by CHRISTOPHER ALBERT PORTALES Submitted to the Office of Graduate...

  14. Elementary particle interactions

    SciTech Connect (OSTI)

    Bugg, W.M.; Condo, G.T.; Handler, T.; Hart, E.L.; Ward, B.F.L.; Close, F.E.; Christophorou, L.G.

    1990-10-01

    This report discusses freon bubble chamber experiments exposed to {mu}{sup +} and neutrinos, photon-proton interactions; shower counter simulations; SLD detectors at the Stanford Linear Collider, and the detectors at the Superconducting Super Collider; elementary particle interactions; physical properties of dielectric materials used in High Energy Physics detectors; and Nuclear Physics. (LSP)

  15. Interactive Virtual Environments Introduction

    E-Print Network [OSTI]

    Petriu, Emil M.

    sensor data or by animation scripts. Human users can interact and directly manipulate objects within Reality Interactive Virtual Reality Virtualized Reality Augmented Reality #12;HUMAN PERCEPTION OF REALITY REAL WORLD / ENVIRONMENT HUMAN (sentient living animal able of sensible reasoning) #12;Real

  16. Does fluoride disrupt hydrogen bond network in cationic lipid bilayer? Time-dependent fluorescence shift of Laurdan and molecular dynamics simulations

    SciTech Connect (OSTI)

    Pokorna, Sarka; Jurkiewicz, Piotr; Hof, Martin; Vazdar, Mario; Cwiklik, Lukasz; Jungwirth, Pavel

    2014-12-14

    Time-dependent fluorescence shift (TDFS) of Laurdan embedded in phospholipid bilayers reports on hydration and mobility of the phospholipid acylgroups. Exchange of H{sub 2}O with D{sub 2}O prolongs the lifetime of lipid-water and lipid-water-lipid interactions, which is reflected in a significantly slower TDFS kinetics. Combining TDFS measurements in H{sub 2}O and D{sub 2}O hydrated bilayers with atomistic molecular dynamics (MD) simulations provides a unique tool for characterization of the hydrogen bonding at the acylgroup level of lipid bilayers. In this work, we use this approach to study the influence of fluoride anions on the properties of cationic bilayers composed of trimethylammonium-propane (DOTAP). The results obtained for DOTAP are confronted with those for neutral phosphatidylcholine (DOPC) bilayers. Both in DOTAP and DOPC H{sub 2}O/D{sub 2}O exchange prolongs hydrogen-bonding lifetime and does not disturb bilayer structure. These results are confirmed by MD simulations. TDFS experiments show, however, that for DOTAP this effect is cancelled in the presence of fluoride ions. We interpret these results as evidence that strongly hydrated fluoride is able to steal water molecules that bridge lipid carbonyls. Consequently, when attracted to DOTAP bilayer, fluoride disrupts the local hydrogen-bonding network, and the differences in TDFS kinetics between H{sub 2}O and D{sub 2}O hydrated bilayers are no longer observed. A distinct behavior of fluoride is also evidenced by MD simulations, which show different lipid-ion binding for Cl{sup ?} and F{sup ?}.

  17. Modern MAP inference methods for accurate and fast occupancy grid mapping on higher order factor graphs

    E-Print Network [OSTI]

    Cafarella, Michael J.

    problems like navigation, path planning, localization and collision avoidance require an estimate on the mobile robot. Robot mapping hence remains an active field of research [3]­ [5] as it is an important reality. Although robot mapping can be performed in many ways--metric or topological; with range sensors

  18. Efficient FISH mapping with small cDNA probe and its application in comparative mapping

    SciTech Connect (OSTI)

    Heng, H.H.Q.; Shi, X.M.; Tsui, L.C. [Univ. of Toronto, Ontario (Canada)

    1994-09-01

    Gene mapping for fluorescence in situ hybridization (FISH) is generally difficult for small probes, especially cDNA probes. Yet, different cDNA projects have generated large number of clones that can be useful in generating physical and transcription maps and as candidate genes in studying human genetic diseases. To develop an efficient FISH method for mapping small cDNA probes (generally around a few hundred bp in size), we have investigated different hybridization conditions, methods of probe preparation as well as slide preparation. Our results suggest that the efficiency of FISH mapping with cDNA probes is critically dependent on the probe labeling and concentration, the temperature of hybridization and washing, and the concentration of formamide present in the solution. These conditions may be optimized systematically. The use of probe self-ligation to increase {open_quotes}network{close_quotes} formation was another useful signal amplification method. So far, we have been able to determine precise chromosome location for 90% of the cDNA probes (45/50). The sizes of the successfully mapped clones were between 200 bp and 2.5 kb. One important extension of our study has been our ability to map cDNA probes from heterologous species. Nine cDNA clones (390 bp to 3 kb) from mouse, rat, rabbit, chicken, frog and fish were successfully mapped to specific regions of banded human chromosomes. The latter application should greatly facilitate comparative gene mapping and study of genome evolution through identification of syntenic groups.

  19. New York's Online Invasive Species Database and Mapping System What is iMapInvasives?

    E-Print Network [OSTI]

    Berkowitz, Alan R.

    New York's Online Invasive Species Database and Mapping System What is iMapInvasives? i through batch uploads and quality- controlled online submissions. The New York Natural Heritage Program.NYimapinvasives.org Questions? Contact: imapinvasives@nynhp.org Supported by the New York State Environmental Protection Fund

  20. 1Copyright W. Maly SIA Road MapSIA Road Map

    E-Print Network [OSTI]

    Maly, Wojciech P.

    Wojciech Maly Department of Electrical and Computer EngineeringDepartment of Electrical and Computer Engineering1Copyright © W. Maly SIA Road MapSIA Road Map andand DESIGN&TESTDESIGN&TEST Wojciech MalyCopyright © W. Maly ObjectiveObjective D&T Current and Future ProblemsD&T Current and Future Problems Future

  1. MacauMap: Handheld Digital Map of Macau Robert P. Biuk-Aghai*

    E-Print Network [OSTI]

    Biuk-Aghai, Robert P.

    of traditional maps, while at the same time promoting Macau tourism. MacauMap is a software application running University of Macau Faculty of Science and Technology P.O. Box 3001, Macau Phone: (+853) 3974365 Fax: (+853) 838314 Email: robertb@umac.mo Abstract Tourism is one of the main sources of income of the Macau economy

  2. The momentum map representation of images

    E-Print Network [OSTI]

    M. Bruveris; F. Gay-Balmaz; D. D. Holm; T. S. Ratiu

    2015-04-08

    This paper discusses the mathematical framework for designing methods of large deformation matching (LDM) for image registration in computational anatomy. After reviewing the geometrical framework of LDM image registration methods, a theorem is proved showing that these methods may be designed by using the actions of diffeomorphisms on the image data structure to define their associated momentum representations as (cotangent lift) momentum maps. To illustrate its use, the momentum map theorem is shown to recover the known algorithms for matching landmarks, scalar images and vector fields. After briefly discussing the use of this approach for Diffusion Tensor (DT) images, we explain how to use momentum maps in the design of registration algorithms for more general data structures. For example, we extend our methods to determine the corresponding momentum map for registration using semidirect product groups, for the purpose of matching images at two different length scales. Finally, we discuss the use of momentum maps in the design of image registration algorithms when the image data is defined on manifolds instead of vector spaces.

  3. Sustaining the Internet with hyperbolic mapping

    E-Print Network [OSTI]

    Boguna, Marian; Krioukov, Dmitri

    2010-01-01

    The Internet infrastructure is severely stressed. Rapidly growing overhead associated with the primary function of the Internet---routing information packets between any two computers in the world---causes concerns among Internet experts that the existing Internet routing architecture may not sustain even another decade; parts of the Internet have started sinking into black holes already. Here we present a method to map the Internet to a hyperbolic space. Guided with the constructed map, which we release with this paper, Internet routing exhibits scaling properties close to theoretically best possible, thus resolving serious scaling limitations that the Internet faces today. Besides this immediate practical viability, our network mapping method can provide a different perspective on the community structure in complex networks.

  4. Turbine adapted maps for turbocharger engine matching

    SciTech Connect (OSTI)

    Tancrez, M.; Galindo, J.; Guardiola, C.; Fajardo, P.; Varnier, O.

    2011-01-15

    This paper presents a new representation of the turbine performance maps oriented for turbocharger characterization. The aim of this plot is to provide a more compact and suited form to implement in engine simulation models and to interpolate data from turbocharger test bench. The new map is based on the use of conservative parameters as turbocharger power and turbine mass flow to describe the turbine performance in all VGT positions. The curves obtained are accurately fitted with quadratic polynomials and simple interpolation techniques give reliable results. Two turbochargers characterized in an steady flow rig were used for illustrating the representation. After being implemented in a turbocharger submodel, the results obtained with the model have been compared with success against turbine performance evaluated in engine tests cells. A practical application in turbocharger matching is also provided to show how this new map can be directly employed in engine design. (author)

  5. Mapping Particle Charges in Battery Electrodes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion toMSDS onBudget || Department ofDubeyMappingMapping

  6. Mapping Particle Charges in Battery Electrodes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport)PriceHistoricEnergy Efficiency »5Mapping ParticleMapping

  7. The ultraviolet-bright, slowly declining transient PS1-11af as a partial tidal disruption event

    SciTech Connect (OSTI)

    Chornock, R.; Berger, E.; Zauderer, B. A.; Kamble, A.; Soderberg, A. M.; Czekala, I.; Dittmann, J.; Drout, M.; Foley, R. J.; Fong, W.; Kirshner, R. P.; Lunnan, R.; Marion, G. H.; Narayan, G. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 (United States); Gezari, S. [Department of Astronomy, University of Maryland, College Park, MD 20742-2421 (United States); Rest, A.; Riess, A. G. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Chomiuk, L. [Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States); Huber, M. E. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Lawrence, A., E-mail: rchornock@cfa.harvard.edu [Institute for Astronomy, University of Edinburgh Scottish Universities Physics Alliance, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom); and others

    2014-01-01

    We present the Pan-STARRS1 discovery of the long-lived and blue transient PS1-11af, which was also detected by Galaxy Evolution Explorer with coordinated observations in the near-ultraviolet (NUV) band. PS1-11af is associated with the nucleus of an early type galaxy at redshift z = 0.4046 that exhibits no evidence for star formation or active galactic nucleus activity. Four epochs of spectroscopy reveal a pair of transient broad absorption features in the UV on otherwise featureless spectra. Despite the superficial similarity of these features to P-Cygni absorptions of supernovae (SNe), we conclude that PS1-11af is not consistent with the properties of known types of SNe. Blackbody fits to the spectral energy distribution are inconsistent with the cooling, expanding ejecta of a SN, and the velocities of the absorption features are too high to represent material in homologous expansion near a SN photosphere. However, the constant blue colors and slow evolution of the luminosity are similar to previous optically selected tidal disruption events (TDEs). The shape of the optical light curve is consistent with models for TDEs, but the minimum accreted mass necessary to power the observed luminosity is only ?0.002 M {sub ?}, which points to a partial disruption model. A full disruption model predicts higher bolometric luminosities, which would require most of the radiation to be emitted in a separate component at high energies where we lack observations. In addition, the observed temperature is lower than that predicted by pure accretion disk models for TDEs and requires reprocessing to a constant, lower temperature. Three deep non-detections in the radio with the Very Large Array over the first two years after the event set strict limits on the production of any relativistic outflow comparable to Swift J1644+57, even if off-axis.

  8. MARKERAUGMENTED ROBOTENVIRONMENT INTERACTION

    E-Print Network [OSTI]

    Mali, Amol D.

    MARKER­AUGMENTED ROBOT­ENVIRONMENT INTERACTION Amol Dattatraya Mali Electrical Engg. & Computer Science University of Wisconsin, Milwaukee, WI 53211 mali@miller.cs.uwm.edu Abstract There has been

  9. Optical-infrared flares and radio afterglows from the tidal disruption of Jovian planets by their host star

    E-Print Network [OSTI]

    Yamazaki, Ryo; Loeb, Abraham

    2015-01-01

    When a Jovian planet gets sufficiently close to its host star to be tidally disrupted, its debris stream deposits energy on the star's surface, producing an expanding bubble of hot plasma. We study the radiation from the bubble and show that it includes optical-infrared prompt emission and a subsequent radio afterglow. The prompt emission from M31 and Large Magellanic Cloud is detectable by optical-near infrared transient surveys with a large field of view at an event rate of a few events per year. The subsequent radio afterglows are detectable for $10^{3-4}$~years.

  10. Human-machine interactions

    DOE Patents [OSTI]

    Forsythe, J. Chris (Sandia Park, NM); Xavier, Patrick G. (Albuquerque, NM); Abbott, Robert G. (Albuquerque, NM); Brannon, Nathan G. (Albuquerque, NM); Bernard, Michael L. (Tijeras, NM); Speed, Ann E. (Albuquerque, NM)

    2009-04-28

    Digital technology utilizing a cognitive model based on human naturalistic decision-making processes, including pattern recognition and episodic memory, can reduce the dependency of human-machine interactions on the abilities of a human user and can enable a machine to more closely emulate human-like responses. Such a cognitive model can enable digital technology to use cognitive capacities fundamental to human-like communication and cooperation to interact with humans.

  11. Campus Parking Map University of California

    E-Print Network [OSTI]

    Alvarez-Cohen, Lisa

    Campus Parking Map University of California BERKELEY #12;Campus Building Locations Parking Lots Campus parking lots are located around and near campus and in the hill areas east of campus. Parking lot/Weekend parking permits are valid weekdays after 5pm and on weekends in , , and designated lots. Parking on campus

  12. TigerTransit Routes & Parking Map

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    PARKING ZONE & LOT ASSIGNMENTS Parking in Princeton University parking lots is by permit only. To obtain in the assigned lot and zone indicated on the vehicle hangtag. Parking in an unassigned lot within a designated2014­2015 TigerTransit Routes & Parking Map Contact Us Transportation & Parking Services New South

  13. Contemporary Mathematics Quasiconformal mappings on Carnot groups

    E-Print Network [OSTI]

    Cowling, Michael

    of step r of a Lie algebra n is a decomposition of n as a direct sum rj=1nj such that [ni, nj] ni in U if etff(f(p)-1f(pe-tffx)) converges locally uniformly * *in x ____________ 1991 Mathematics, contact map. This research was partly supported by the Australian Research Council and t* *he Swiss

  14. Mapping and Exploring the "Hidden Oregon"

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    and Space Museum #12;Images courtesy of the National Air and Space Museum #12;#12;#12;#12;#12;Goldfinger et, recreation Oil Spill Response, TrackingWave Energy Navigation Products, Services Maps and Visualizations Port Statement is ... Part of governor's public position on ocean stewardship A suggested process ... (communal

  15. Order Parameters for SelfOrganizing Maps

    E-Print Network [OSTI]

    Polani, Daniel

    there is a surprisingly clear agreement which systems are to be subjectively called self­organizing and which not; this idea is used in related models to derive quantities measuring the formation of neural maps in close.e. an equilibrium. The system complexity is reduced by ignoring short lived slave modes, which are removed

  16. Optimal measurements and fixed-point maps

    SciTech Connect (OSTI)

    Dhara, Chirag; Hari Dass, N.D.

    2005-08-15

    When an optimal measurement of (S{sub x},S{sub y},S{sub z}) is made on a qubit and what we call a mutually unbiased mixture of the resulting ensembles is taken, then the post-measurement density matrix is shown to be related to the premeasurement density matrix through a simple linear relation. It is also shown that the form of this relation is the same for all quantum systems. It is shown that for a general quantum system such a relation holds only when the measurements are made in mutually unbiased bases. The post-measurement density matrix is shown to be a normalized incoherent superposition of the identity map and the pin map of Gorini and Sudarshan. A pin map is one which maps all density matrices to a fixed density matrix which in our case turns out to be the unit matrix. The result is shown to be true irrespective of whether the initial state is pure or mixed. For spin-1/2 systems it is also shown explicitly that nonorthogonal measurements fail to give such a linear relation no matter how the ensembles are mixed.

  17. A genetic linkage map of buffelgrass 

    E-Print Network [OSTI]

    Jessup, Russell William

    1999-01-01

    of buffelgrass to investigate the molecular basis of apospory and serve as a framework map for marker-facilitated breeding of perennial forage grasses. Buffelgrass (Pennisetum ciliare (L.) Link syn. Cenchrus ciliaris L.) (2n=4x=36), a highly polymorphic...

  18. A Spacetime Map of the Universe

    E-Print Network [OSTI]

    John A. Gowan

    2011-11-20

    A geometric spacetime map of the universe is presented, addressing problems inherent in deep space observations and cosmology. Implications for the observer's perspective, the cosmological "horizon" and "flatness" problem, "inflation", and the recently observed accelerating expansion of the Universe are discussed.

  19. Chemical Storage Map Building: Room: Date

    E-Print Network [OSTI]

    & Eyewash Free-Standing Cabinet Fume Hood Natural Gas Outlet Gas Cylinder Floor-Standing Equipment Hazards shown on the right side of the map template. d. Label natural gas outlets with the symbol shown Refrigerator and/or Freezer 2.2 Non Toxic/Flam Gases 1 cu ft 2.3 Toxic gases 1 cu ft 3 Flammable Liquid 5 gals

  20. Particles, maps and Irreversible Thermodynamics { I

    E-Print Network [OSTI]

    Rondoni, Lamberto

    Particles, maps and Irreversible Thermodynamics { I E. G. D. Cohen The Rockefeller University New Thermodynamics from deterministic dynamics. We #12;nd that these models do not posses the crucial property of local thermodynamic equilibrium, since they rep- resent noninteracting particles systems. Hence

  1. Linkage Disequilibrium Mapping and Parkinson's Disease

    E-Print Network [OSTI]

    Parkinson's Disease Genetics Study Group, Science 279, 1116 (1998); T. Lynch et al., ibid., 278, 1212 (1997Linkage Disequilibrium Mapping and Parkinson's Disease Several investigators (1) have questioned with Parkinson's disease (PD) in four appar- ently unrelated Italian and Greek families, may be a cause

  2. Folded Bifurcation in Coupled Asymmetric Logistic Maps

    E-Print Network [OSTI]

    Shoichi Midorikawa; Takayuki Kubo; Taksu Cheon

    1995-12-28

    A system of coupled two logistic maps, one periodic and the other chaotic, is studied. It is found that with the variation of the coupling strength, the system displays several curious features such as the appearance of quadrupling of period, occurrence of isolated period three attractor and the coexistence of the Hopf and pitchfork bifurcations. Possible applications and extensions are discussed.

  3. GROUNDWATER MAPPING AND ASSESSMENT IN BRITISH COLUMBIA

    E-Print Network [OSTI]

    #12;GROUNDWATER MAPPING AND ASSESSMENT IN BRITISH COLUMBIA VOLUME II: Criteria and Guidelines DOE and Turner Groundwater Consultants P.O. Box 43001 Victoria, B.C. V8X 3G2 October 1993 #12;DISCLAIMER 3H7 #12;TABLE OF CONTENTS Chapter 1 Introduction 1 Chapter 2 Basic Groundwater Concepts

  4. Spatial distribution maps for benthic communities

    E-Print Network [OSTI]

    of multivariate statistics. The object of the thesis is the preparation of maps depicting spatial distribution of geostatistics, image analysis and multivariate statistics in an appropriate data processing scheme has been would like to acknowledge the enthusiasm and energy provided by my marine biologist colleague and close

  5. Jerry Crail Johnson Earth Sciences & Map Library

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Center...) Places to Search · Map Library webpages · Other Online Sources · Chinook (Libraries catalog and agroclimatology, fisheries, forestry, hydrology and water resources, land cover and land use, population and socio http://libraries.colorado.edu/ Search Chinook, the Libraries catalog, to find government datasets

  6. Computing Non- Gaussian Maps of the CMB

    E-Print Network [OSTI]

    Martin Landriau; Paul Shellard

    2003-10-10

    We discuss methods to compute maps of the CMB in models featuring active causal sources and in non-Gaussian models ofinflation. We show our large angle results as well as some preliminary results on small angles. We conclude by discussing on-going work.

  7. Alexander M. de Sherbinin Mapping the

    E-Print Network [OSTI]

    Columbia University

    sets. SEDAC data have been widely used in journal articles and reports focusing on climate change Change and Climate Variability #12;Page intentionally left blank #12;MAPPING THE UNMEASURABLE? SPATIAL ANALYSIS OF VULNERABILITY TO CLIMATE CHANGE AND CLIMATE VARIABILITY Alexander Michael de Sherbinin #12

  8. Mapping the News: How Journalists use GIS

    E-Print Network [OSTI]

    Herzog, David

    2006-11-15

    in January 2002, he was an investigative reporter for the Providence Journal in Rhode Island and editor for computer-assisted reporting at The Morning Call in Allentown, Pa. He is author of the book "Mapping the News: Case Studies in GIS and Journalism" (ESRI...

  9. Hyperinstantons, the Beltrami Equation, and Triholomorphic Maps

    E-Print Network [OSTI]

    Fré, P; Sorin, A S

    2015-01-01

    We consider the Beltrami equation for hydrodynamics and we show that its solutions can be viewed as instanton solutions of a more general system of equations. The latter are the equations of motion for an ${\\cal N}=2$ sigma model on 4-dimensional worldvolume (which is taken locally HyperK\\"ahler) with a 4-dimensional HyperK\\"ahler target space. By means of the 4D twisting procedure originally introduced by Witten for gauge theories and later generalized to 4D sigma-models by Anselmi and Fr\\'e, we show that the equations of motion describe triholomophic maps between the worldvolume and the target space. Therefore, the classification of the solutions to the 3-dimensional Beltrami equation can be performed by counting the triholomorphic maps. The counting is easily obtained by using several discrete symmetries. Finally, the similarity with holomorphic maps for ${\\cal N}=2$ sigma on Calabi-Yau space prompts us to reformulate the problem of the enumeration of triholomorphic maps in terms of a topological sigma mod...

  10. A monotonicity conjecture for real cubic maps

    SciTech Connect (OSTI)

    Dawson, S.P.; Galeeva, R.; Milnor, J.; Tresser, C.

    1993-12-01

    This will be an outline of work in progress. We study the conjecture that the topological entropy of a real cubic map depends ``monotonely`` on its parameters, in the sense that each locus of constant entropy in parameter space is a connected set. This material will be presented in more detail in a later paper.

  11. Mapping cis-Regulatory Domains in the Human Genome UsingMulti-Species Conservation of Synteny

    SciTech Connect (OSTI)

    Ahituv, Nadav; Prabhakar, Shyam; Poulin, Francis; Rubin, EdwardM.; Couronne, Olivier

    2005-06-13

    Our inability to associate distant regulatory elements with the genes that they regulate has largely precluded their examination for sequence alterations contributing to human disease. One major obstacle is the large genomic space surrounding targeted genes in which such elements could potentially reside. In order to delineate gene regulatory boundaries we used whole-genome human-mouse-chicken (HMC) and human-mouse-frog (HMF) multiple alignments to compile conserved blocks of synteny (CBS), under the hypothesis that these blocks have been kept intact throughout evolution at least in part by the requirement of regulatory elements to stay linked to the genes that they regulate. A total of 2,116 and 1,942 CBS>200 kb were assembled for HMC and HMF respectively, encompassing 1.53 and 0.86 Gb of human sequence. To support the existence of complex long-range regulatory domains within these CBS we analyzed the prevalence and distribution of chromosomal aberrations leading to position effects (disruption of a genes regulatory environment), observing a clear bias not only for mapping onto CBS but also for longer CBS size. Our results provide a genome wide data set characterizing the regulatory domains of genes and the conserved regulatory elements within them.

  12. Inspection design using 2D phased array, TFM and cueMAP software

    SciTech Connect (OSTI)

    McGilp, Ailidh; Dziewierz, Jerzy; Lardner, Tim; Mackersie, John; Gachagan, Anthony

    2014-02-18

    A simulation suite, cueMAP, has been developed to facilitate the design of inspection processes and sparse 2D array configurations. At the core of cueMAP is a Total Focusing Method (TFM) imaging algorithm that enables computer assisted design of ultrasonic inspection scenarios, including the design of bespoke array configurations to match the inspection criteria. This in-house developed TFM code allows for interactive evaluation of image quality indicators of ultrasonic imaging performance when utilizing a 2D phased array working in FMC/TFM mode. The cueMAP software uses a series of TFM images to build a map of resolution, contrast and sensitivity of imaging performance of a simulated reflector, swept across the inspection volume. The software takes into account probe properties, wedge or water standoff, and effects of specimen curvature. In the validation process of this new software package, two 2D arrays have been evaluated on 304n stainless steel samples, typical of the primary circuit in nuclear plants. Thick section samples have been inspected using a 1MHz 2D matrix array. Due to the processing efficiency of the software, the data collected from these array configurations has been used to investigate the influence sub-aperture operation on inspection performance.

  13. Detection of Disruptions in the High-β Spherical Torus NSTX (Technical

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing BacteriaConnectlaser-solid interactionCrystalDesigning aDesignsfrom(Patent)Report)

  14. Detection of Disruptions in the High-β Spherical Torus NSTX (Technical

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing BacteriaConnectlaser-solid interactionCrystalDesigning

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

    SciTech Connect (OSTI)

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

    1984-11-01

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

  16. repulsion and quantization in almost-harmonic maps, and asymptotics of the harmonic map flow

    E-Print Network [OSTI]

    Topping, Peter

    .1 Basic technology * Abstract We present an analysis of bounded-energy low-tension maps between 2-sphe* *res develop, we show that we can establish a `quantization estimate' which constrains t* *he energy

  17. Relativistic Laser-Matter Interactions

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

    Relativistic Laser-Matter Interactions Relativistic Laser-Matter Interactions Enabling the next generation of intense particle accelerators Contact Juan Fernandez (505) 667-6575...

  18. Surprising Quasiparticle Interactions in Graphene

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

    Surprising Quasiparticle Interactions in Graphene Surprising Quasiparticle Interactions in Graphene Print Wednesday, 31 October 2007 00:00 Until now, the world's electronics have...

  19. NSTX Disruption Simulations of Detailed Divertor and Passive Plate Models by Vector Potential Transfer from OPERA Global Analysis Results

    SciTech Connect (OSTI)

    P. H. Titus, S. Avasaralla, A.Brooks, R. Hatcher

    2010-09-22

    The National Spherical Torus Experiment (NSTX) project is planning upgrades to the toroidal field, plasma current and pulse length. This involves the replacement of the center-stack, including the inner legs of the TF, OH, and inner PF coils. A second neutral beam will also be added. The increased performance of the upgrade requires qualification of the remaining components including the vessel, passive plates, and divertor for higher disruption loads. The hardware needing qualification is more complex than is typically accessible by large scale electromagnetic (EM) simulations of the plasma disruptions. The usual method is to include simplified representations of components in the large EM models and attempt to extract forces to apply to more detailed models. This paper describes a more efficient approach of combining comprehensive modeling of the plasma and tokamak conducting structures, using the 2D OPERA code, with much more detailed treatment of individual components using ANSYS electromagnetic (EM) and mechanical analysis. This capture local eddy currents and resulting loads in complex details, and allows efficient non-linear, and dynamic structural analyses.

  20. Importance of protamine phosphorylation to histone displacement in spermatids: can the disruption of this process be used for male contraception

    SciTech Connect (OSTI)

    Balhorn, R.; Hud, N.V.; Corzett, M.; Mazrimas, J.

    1995-06-01

    Protamine is a small protein that packages DNA in the sperm of most vertebrates. Shortly after its synthesis, the serine and threonine residues in each protamine are phosphorylated and the modified proteins are deposited onto DNA, displacing the histones and other chromatin proteins. We have hypothesized that the phosphorylation of protamine 1 induces protamine dimerization and these dimers are required for efficient histone displacement. Histone displacement by protamines in late-step spermatids appears to be essential for the production of fertile sperm in man and other mammals, and the disruption of this process could provide a new approach for male contraception. As a first step towards testing this theory, we have initiated a set of in vitro experiments to determine whether of not protamine phosphorylation is essential for histone displacement. Thee results of these experiments, although incomplete, confirm that unphosphorylated protamine cannot effectively displace histone from DNA. Polyarginine molecules twice the size of a protamine molecule and salmine dimer were found to be more effective. These results are consistent with the theory that the disruption of protamine phosphorylation may prove to be a useful new approach for male contraception if it can be shown to facilitate or induce protamine dimerization.