Sample records for beluga whale interactions

  1. Acoustic Monitoring of Beluga Whale Interactions with Cook Inlet Tidal Energy Project

    SciTech Connect (OSTI)

    Worthington, Monty [Project Director - AK] [Project Director - AK

    2014-02-05T23:59:59.000Z

    Cook Inlet, Alaska is home to some of the greatest tidal energy resources in the U.S., as well as an endangered population of beluga whales (Delphinapterus leucas). Successfully permitting and operating a tidal power project in Cook Inlet requires a biological assessment of the potential and realized effects of the physical presence and sound footprint of tidal turbines on the distribution, relative abundance, and behavior of Cook Inlet beluga whales. ORPC Alaska, working with the Project Team—LGL Alaska Research Associates, University of Alaska Anchorage, TerraSond, and Greeneridge Science—undertook the following U.S. Department of Energy (DOE) study to characterize beluga whales in Cook Inlet – Acoustic Monitoring of Beluga Whale Interactions with the Cook Inlet Tidal Energy Project (Project). ORPC Alaska, LLC, is a wholly-owned subsidiary of Ocean Renewable Power Company, LLC, (collectively, ORPC). ORPC is a global leader in the development of hydrokinetic power systems and eco-conscious projects that harness the power of ocean and river currents to create clean, predictable renewable energy. ORPC is developing a tidal energy demonstration project in Cook Inlet at East Foreland where ORPC has a Federal Energy Regulatory Commission (FERC) preliminary permit (P-13821). The Project collected baseline data to characterize pre-deployment patterns of marine mammal distribution, relative abundance, and behavior in ORPC’s proposed deployment area at East Foreland. ORPC also completed work near Fire Island where ORPC held a FERC preliminary permit (P-12679) until March 6, 2013. Passive hydroacoustic devices (previously utilized with bowhead whales in the Beaufort Sea) were adapted for study of beluga whales to determine the relative abundance of beluga whale vocalizations within the proposed deployment areas. Hydroacoustic data collected during the Project were used to characterize the ambient acoustic environment of the project site pre-deployment to inform the FERC pilot project process. The Project compared results obtained from this method to results obtained from other passive hydrophone technologies and to visual observation techniques performed simultaneously. This Final Report makes recommendations on the best practice for future data collection, for ORPC’s work in Cook Inlet specifically, and for tidal power projects in general. This Project developed a marine mammal study design and compared technologies for hydroacoustic and visual data collection with potential for broad application to future tidal and hydrokinetic projects in other geographic areas. The data collected for this Project will support the environmental assessment of future Cook Inlet tidal energy projects, including ORPC’s East Foreland Tidal Energy Project and any tidal energy developments at Fire Island. The Project’s rigorous assessment of technology and methodologies will be invaluable to the hydrokinetic industry for developing projects in an environmentally sound and sustainable way for areas with high marine mammal activity or endangered populations. By combining several different sampling methods this Project will also contribute to the future preparation of a comprehensive biological assessment of ORPC’s projects in Cook Inlet.

  2. Book Reviews Whitehead, H. 2003: Sperm Whales: Social Evolution in the Oceans. University of

    E-Print Network [OSTI]

    Reichmuth, Colleen

    is the loudest biological sound ever recorded. Sperm whales echolocate in deep dark water by emitting a train and beluga whales. It is used to transmit and focus sound energy in the form of clicks, producing what

  3. Beluga Coal Gasification - ISER

    SciTech Connect (OSTI)

    Steve Colt

    2008-12-31T23:59:59.000Z

    ISER was requested to conduct an economic analysis of a possible 'Cook Inlet Syngas Pipeline'. The economic analysis was incorporated as section 7.4 of the larger report titled: 'Beluga Coal Gasification Feasibility Study, DOE/NETL-2006/1248, Phase 2 Final Report, October 2006, for Subtask 41817.333.01.01'. The pipeline would carry CO{sub 2} and N{sub 2}-H{sub 2} from a synthetic gas plant on the western side of Cook Inlet to Agrium's facility. The economic analysis determined that the net present value of the total capital and operating lifecycle costs for the pipeline ranges from $318 to $588 million. The greatest contributor to this spread is the cost of electricity, which ranges from $0.05 to $0.10/kWh in this analysis. The financial analysis shows that the delivery cost of gas may range from $0.33 to $0.55/Mcf in the first year depending primarily on the price for electricity.

  4. Comprehensive Video Ethogram on Beluga (Delphinapterus leucas) Behavior

    E-Print Network [OSTI]

    Campbell, Carolyn Ann

    2012-07-16T23:59:59.000Z

    Research is limited for belugas in both the wild and in the care of humans. To address this lack of knowledge, I created a comprehensive video ethogram of beluga behavior, collected from the beluga population located at Sea World San Antonio...

  5. Beluga, Alaska: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 EastMaine:Barbers PointEnergyJingneng861°Open EnergyInformationBeltramiBeluga,

  6. The Blue Whale, Balaenoptera musculus

    E-Print Network [OSTI]

    The Blue Whale, Balaenoptera musculus SALLY A. MIZROCH, DALE W. RICE, and JEFFREY M. BREIWICK Introduction The blue whale, Balaenoptera mus- culus (Linnaeus, 1758), is not only the largest of the whales metric tons (t) (Mackintosh, 1942). Blue whales are entirely bluish-gray in color, except for the white

  7. Northern Fur Seals (Callorhinus ursinus) of the Commander Islands: Summer Feeding Trips, Winter Migrations and Interactions with Killer Whales (Orcinus orca)

    E-Print Network [OSTI]

    Belonovich, Olga Andreevna

    2011-10-21T23:59:59.000Z

    direction, dive depth) of animals from two nearby rookeries on Bering Island, 2) winter migration from Medny and Bering Islands relative to patterns of ocean productivity, and 3) the potential impact of killer whale predation on population dynamics. Data...

  8. Blue whale response to underwater noise from commercial ships

    E-Print Network [OSTI]

    McKenna, Megan Frances

    2011-01-01T23:59:59.000Z

    hydrodynamics and energetics of blue whale lunge feeding:2010. Association between Blue Whale (Balaenoptera musculus)and calling behavior of blue whales from a suction-cup-

  9. FROM WHALE HARVESTING TO WHALE WATCHING: TANGALOOMA 30 YEARS ON

    E-Print Network [OSTI]

    in locations as diverse as Canada. California, Mexico, Hawaii, Argentina. New Zealand. Australia and Japan announced that it was going to resume commercial whaling operations regardless of IWC policy and now

  10. Orchestration : the movement and vocal behavior of free-ranging Norwegian killer whales (Orcinus orca)

    E-Print Network [OSTI]

    Shapiro, Ari Daniel

    2008-01-01T23:59:59.000Z

    Studying the social and cultural transmission of behavior among animals helps to identify patterns of interaction and information content flowing between individuals. Killer whales are likely to acquire traits culturally ...

  11. Alaska Regional Energy Resources Planning Project. Phase 2: coal, hydroelectric and energy alternatives. Volume I. Beluga Coal District Analysis

    SciTech Connect (OSTI)

    Rutledge, G.; Lane, D.; Edblom, G.

    1980-01-01T23:59:59.000Z

    This volume deals with the problems and procedures inherent in the development of the Beluga Coal District. Socio-economic implications of the development and management alternatives are discussed. A review of permits and approvals necessary for the initial development of Beluga Coal Field is presented. Major land tenure issues in the Beluga Coal District as well as existing transportation routes and proposed routes and sites are discussed. The various coal technologies which might be employed at Beluga are described. Transportation options and associated costs of transporting coal from the mine site area to a connecting point with a major, longer distance transportation made and of transporting coal both within and outside (exportation) the state are discussed. Some environmental issues involved in the development of the Beluga Coal Field are presented. (DMC)

  12. Measuring the Impact of Tidal Power Installations on Endangered Beluga

    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 Delicious RankCombustion |EnergyonSupport0.pdf5 OPAM SEMIANNUAL REPORTMAMay 20 ESTAP Webinar:Whales | Department of

  13. Blue and fin whale acoustics and ecology off Antarctic Peninsula

    E-Print Network [OSTI]

    Sirovic, Ana

    2006-01-01T23:59:59.000Z

    for increases in Antarctic blue whales based on BayesianG. , 1962b. The movements of blue and fin whales within theF. G. Wheeler, 1929. Southern blue and fin whales. Discovery

  14. Biomechanics of North Atlantic right whale bone : mandibular fracture as a fatal endpoint for blunt vessel-whale collision modeling

    E-Print Network [OSTI]

    Campbell-Malone, Regina P

    2007-01-01T23:59:59.000Z

    The North Atlantic right whale, Eubalaena glacialis, one of the most critically endangered whales in the world, is subject to high anthropogenic mortality. Vessel-whale collisions and entanglement in fishing gear were ...

  15. Behavioral context of call production by eastern North Pacific blue whales

    E-Print Network [OSTI]

    Oleson, Erin M; Calambokidis, J; Burgess, W C; McDonald, M A; LeDuc, C A; Hildebrand, J A

    2007-01-01T23:59:59.000Z

    by eastern North Pacific blue whales Erin M. Oleson 1, *,context of calls produced by blue whales Balaenoptera mus-North Pacific population of blue whales (Thompson 1965,

  16. TOURISM SITES WHALE/ PUFFIN/ ICEBERG WATCHING***

    E-Print Network [OSTI]

    deYoung, Brad

    TOURISM SITES WHALE/ PUFFIN/ ICEBERG WATCHING*** Colberts Puffin & Whale Tours Bauline East 1://www.env.gov.nl.ca/env/snp/index.html TOURISM INFORMATION City of St. John's 1-709-576-8106 http://www.stjohns.ca/ http://www.stjohns.ca/visiting-our-city/st-johns-information/tourism-links Irish Loop Tourism Association*** 1-709-334-2609 http://www.theirishloop.com/contact.htm #12

  17. POPULATION Over 10,000 bowhead whales migrate annually through

    E-Print Network [OSTI]

    of whales made during the spring of 2001 by North Slope Borough observers standing on sea ice north of Point contributed partial funding to Alaska's North Slope Borough for counting bowheads as they migrate past Point whales. Europeans and people of other nations commercially hunted bowhead whales for oil, meat

  18. cDNA Cloning and Characterization of a High Affinity Aryl Hydrocarbon Receptor in a Cetacean, the Beluga, Delphinapterus leucas

    E-Print Network [OSTI]

    Hahn, Mark E.

    ,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and related PHAHs cause toxicity via activation of the aryl hydrocar- bon receptor demonstrated specific, high-affinity [3 H]TCDD binding. Satura- tion binding analysis was used to compare-expressed AHRs from a dioxin-sensitive mouse strain (Ahb­1 allele) and humans. The beluga AHR bound [3 H

  19. Blue and fin whale call source levels and propagation range in the Southern Ocean

    E-Print Network [OSTI]

    Sirovic, Anna; Hildebrand, John A; Wiggins, Sean

    2007-01-01T23:59:59.000Z

    graphic characterization of blue whale song worldwide: UsingAugust 2007 Širovi? et al. : Blue and ?n whale source levelsout of the discussion of blue whales,” Rep. Int. Whal. Comm.

  20. Gray Whales, Green Indians, and Sea Shepherds

    E-Print Network [OSTI]

    Bland, Clinton Thomas

    2008-08-19T23:59:59.000Z

    agencies of the federal government (including the National Oceanic and Atmospheric Administration [NOA] and the National Fisheries 1 Makah Website, ?Whaling Q&A,? ocean ecosystems. It is also important to include this information because the fact that activists ignored the relevant science forms the basis for Kaland?s and Van Ginkel?s claims. They argue that activists? casting aside of relevant data...

  1. INTRODUCTION Information on the abundance of large whales in Greenland

    E-Print Network [OSTI]

    Laidre, Kristin L.

    INTRODUCTION Information on the abundance of large whales in Greenland waters, including fin whales surveys were conducted in West Greenland by the Greenland Fisheries Research Institute (m/v Regina Maris when survey conditions are optimal in Greenlandic waters. Between 1983 and 1993, visual aerial surveys

  2. BEHAVIOR OF SOUTHERN RIGHT WHALES, EUBALAENA AUSTRALIS, FEEDING ON mE ANTARCTIC KRILL, EUPHAUSIA SUPERBA

    E-Print Network [OSTI]

    BEHAVIOR OF SOUTHERN RIGHT WHALES, EUBALAENA AUSTRALIS, FEEDING ON mE ANTARCTIC KRILL, EUPHAUSIA SUPERBA WILLIAM M. HAMNER.l GREGORY S. STONE.2 AND BRYAN S. OUST} ABSTRACT Southern right whales. These whales do not appear to be from the well-documented Valdes, Argentina population. The whales we observed

  3. Inference from a Deterministic Population Dynamics Model for Bowhead Whales

    E-Print Network [OSTI]

    Givens, Geof H.

    . This research was supported by the North Slope Borough, Alaska, the State of Alaska (through the Alaska, the replacement of whale oil by kerosene, and the decreased use of baleen corset stays discouraged commercial

  4. E-Print Network 3.0 - atlantic killer whale Sample Search Results

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

    E NTY-S I X Ecosystem Effects of Fishing and Whaling in the Summary: 333 TW E NTY-S I X Ecosystem Effects of Fishing and Whaling in the North Pacific and Atlantic... of...

  5. Dietary specialization in two sympatric populations of killer whales (Orcinus orca) in

    E-Print Network [OSTI]

    Barrett-Lennard, Lance

    B. Morton, Rod S. Palm, and Kenneth C. Balcomb III Abstract: Two forms of killer whale (Orcinus orca

  6. 61(1), 1999 67 Chile) where sperm whales have become

    E-Print Network [OSTI]

    .g. longline) Indian Ocean Pollution Unknown Papilloma and calcivirus Unknown Gulf of Mexico Oil and gas whales occurs in the northern Gulf of Mexico, an area of intensive oil and gas exploration whales (Odell, 1992). Stud- ies of whale reactions to seismic sur- veys in the Gulf of Mexico indicated

  7. Nantucket Sleighride: An exhibit on Whales and Whaling from the Department of Special Collections, Kenneth Spencer Research Library

    E-Print Network [OSTI]

    Haines, Sally

    2012-12-01T23:59:59.000Z

    , never-dry ride to which the old-time whaler was treated whenever he harpooned not the right whale, that is, a bowhead or nordcaper, but the altogether wrong whale, a fast- moving rorqual or a slow but grumpy sperm like Moby-Dick. The whaler who went... upon dry salted fare – fit emblem of the dry nourishment of my soul! – when the poorest landsman has had fresh fruit to his daily hand, and broken the world’s fresh bread to my mouldy crusts …’” {Moby-Dick chapter 132...

  8. Bowhead whale springtime song off West Greenland Kathleen M. Stafford

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Bowhead whale springtime song off West Greenland Kathleen M. Stafford Applied Physics Laboratory 98105 and Greenland Institute of Natural Resources, Box 570, DK-3900 Nuuk, Greenland M. P. Heide-Jřrgensen Greenland Institute of Natural Resources, Box 570, DK-3900 Nuuk, Greenland Received 13 February 2008

  9. Assessment of Strike of Adult Killer Whales by an OpenHydro Tidal Turbine Blade

    SciTech Connect (OSTI)

    Carlson, Thomas J.; Elster, Jennifer L.; Jones, Mark E.; Watson, Bruce E.; Copping, Andrea E.; Watkins, Michael L.; Jepsen, Richard A.; Metzinger, Kurt

    2012-02-01T23:59:59.000Z

    Report to DOE on an analysis to determine the effects of a potential impact to an endangered whale from tidal turbines proposed for deployment in Puget Sound.

  10. Testing the effectiveness of an acoustic deterrent for gray whales along the Oregon coast

    SciTech Connect (OSTI)

    Lagerquist, Barbara [Oregon State University Marine Mammal Institute; Winsor, Martha [Oregon State University Marine Mammal Institute; Mate, Bruce [Oregon State University Marine Mammal Institute

    2012-12-31T23:59:59.000Z

    This study was conducted to determine whether a low-powered sound source could be effective at deterring gray whales from areas that may prove harmful to them. With increased interest in the development of marine renewal energy along the Oregon coast the concern that such development may pose a collision or entanglement risk for gray whales. A successful acoustic deterrent could act as a mitigation tool to prevent harm to whales from such risks. In this study, an acoustic device was moored on the seafloor in the pathway of migrating gray whales off Yaquina Head on the central Oregon coast. Shore-based observers tracked whales with a theodolite (surveyor’s tool) to accurately locate whales as they passed the headland. Individual locations of different whales/whale groups as well as tracklines of the same whale/whale groups were obtained and compared between times with the acoustic device was transmitting and when it was off. Observations were conducted on 51 d between January 1 and April 15, 2012. A total of 143 individual whale locations were collected for a total of 243 whales, as well as 57 tracklines for a total of 142 whales. Inclement weather and equipment problems resulted in very small sample sizes, especially during experimental periods, when the device was transmitting. Because of this, the results of this study were inconclusive. We feel that another season of field testing is warranted to successfully test the effectiveness of the deterrent, but recommend increasing the zone of influence to 3 km to ensure the collection of adequate sample sizes. Steps have been taken to acquire the necessary federal research permit modification to authorize the increased zone of influence and to modify the acoustic device for the increased power. With these changes we are confident we will be able to determine whether the deterrent is effective at deflecting gray whales. A successful deterrent device may serve as a valuable mitigation tool to protect gray whales, and other baleen whales, in the event that marine energy development poses a collision or entanglement risk.

  11. A Pygmy Blue Whale (Cetacea: Balaenopteridae) in the Inshore Waters of New Caledonia1 Philippe Borsa2,3

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Pygmy Blue Whale (Cetacea: Balaenopteridae) in the Inshore Waters of New Caledonia1 Philippe 14, 9750 AA, Haren, The Netherlands. To be cited as: Borsa P., Hoarau G. 2004. A pygmy blue whale;Abstract: The occurrence of a blue whale is reported for the first time for the New Caledonian archipelago

  12. Fully corrected estimates of common minke whale abundance in West Greenland in 2007

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Fully corrected estimates of common minke whale abundance in West Greenland in 2007 M.P. HEIDE West Greenland in August and September 2007. A total of 8,670km of survey effort covered 11 strata SURVEY; SATELLITE TAGGING; WEST GREENLAND minke whales to fully corrected total estimates of abundance

  13. White Sharks (Carcharodon carcharias) Scavenging on Whales and Its Potential Role in Further Shaping the

    E-Print Network [OSTI]

    Miami, University of

    White Sharks (Carcharodon carcharias) Scavenging on Whales and Its Potential Role in Further predators. Here we present findings from multiple opportunistic observations of white sharks scavenging on whale carcasses in False Bay, South Africa. Observations of white sharks scavenging over successive days

  14. Temporal separation of two fin whale call types across the eastern North Pacific

    E-Print Network [OSTI]

    Sirovic, Ana; Williams, Lauren N; Kerosky, Sara M; Wiggins, Sean M; Hildebrand, John A

    2013-01-01T23:59:59.000Z

    The analysts visually examined 1 h LTSA windows. If therethe call type based on the LTSA, the analysts would furthern whale 40-Hz calls in an LTSA even though D calls have a

  15. E-Print Network 3.0 - atlantic sperm whales Sample Search Results

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

    manatee (two stocks); western North Atlantic coastal... . Gulf of Mexico 39 0.4 0 0 Yes U W. North Atlantic12 2,154 17 1 1 Yes U Dwarf sperm whale13 N. Gulf... Unknown Unknown 0 0...

  16. A Risk Function for Behavioral Disruption of Blainville's Beaked Whales (Mesoplodon densirostris) from Mid-

    E-Print Network [OSTI]

    Thomas, Len

    concern about the potential effects of noise pollution on marine life in the world's oceans. For marine's beaked whales (Mesoplodon densirostris) by combining in situ data from passive acoustic monitoring

  17. Monitoring and Mitigation Alternatives for Protection of North Atlantic Right Whales during Offshore Wind Farm Installation

    SciTech Connect (OSTI)

    Carlson, Thomas J.; Halvorsen, Michele B.; Matzner, Shari; Copping, Andrea E.; Stavole, Jessica

    2012-09-01T23:59:59.000Z

    Progress report on defining and determining monitoring and mitigation measures for protecting North Atlantic Right Whales from the effects of pile driving and other activities associated with installation of offshore wind farms.

  18. Acoustic scattering of broadband echolocation signals from prey of Blainville's beaked whales : modeling and analysis

    E-Print Network [OSTI]

    Jones, Benjamin A. (Benjamin Aaron)

    2006-01-01T23:59:59.000Z

    Blainville's beaked whales (Mesoplodon densirostris) use broadband, ultrasonic echolocation signals (27 to 57 kHz) to search for, localize, and approach prey that generally consist of mid-water and deep-water fishes and ...

  19. Behavior and movement of southern right whales: effects of boats and swimmers

    E-Print Network [OSTI]

    Lundquist, David Jeffrey

    2007-09-17T23:59:59.000Z

    to consider sustainable use principles when allowing new ecotourism activities, yet the fast-growing worldwide swim-with-whales industry is lacking the research needed to create successful management guidelines that can be implemented by local communities...

  20. Anthropogenic Disturbance of Western Gray Whale Behavior Off Sakhalin Island, Russia

    E-Print Network [OSTI]

    Gailey, Glenn Andrew

    2013-05-14T23:59:59.000Z

    , the western gray whale population face several threats to their future survival. On their only known feeding grounds off the northeastern coast of Sakhalin Island, Russia, anthropogenic activity has increased in the past decade due to oil and gas exploration...

  1. An investigation of the roles of geomagnetic and acoustic cues in whale navigation and orientation

    E-Print Network [OSTI]

    Allen, Ann Nichole

    2013-01-01T23:59:59.000Z

    Many species of whales migrate annually between high-latitude feeding grounds and low-latitude breeding grounds. Yet, very little is known about how these animals navigate during these migrations. This thesis takes a first ...

  2. Evaluating potential infectious disease threats for southern residentkiller whales, Orcinus orca: a model for endangered species

    E-Print Network [OSTI]

    Gaydos, Joseph K.; Balcomb, Kenneth C. III; Osborne, Richard W.; Dieurauf, Leslie

    2004-01-01T23:59:59.000Z

    Morton, A.B. , Palm, R.S. , Balcomb, K.C. , 1998. DietaryJ.K.B. , Ellis, G.M. , Balcomb, K. , 2000. Killer Whales:Gaydos a, *, Kenneth C. Balcomb, III b , Richard W. Osborne

  3. Temporal and spatial segregation of humpback whales (Megaptera novaeangliae) off the Big Island of Hawaii: the influence of behavioral and ecological constraints

    E-Print Network [OSTI]

    Smultea, Mari Ann

    1991-01-01T23:59:59.000Z

    observed in some ungulates. While on their wintering grounds in coastal areas, gray whales Format and style follow (Eschrichfius robustus) and northern and southern right whales (Eubaiaena giaciaiis and E. australis) segregate regionally by sex, age...

  4. SURFACE FEEDING BY A JUVENILE GRAY WHALE, ESCHRICHTlUS ROBUSTUS

    E-Print Network [OSTI]

    , tube worms, shell, etc., including kelp fragments have been reported in stomach contents ofgray whales feeding behavior in a kelp, Macro- cystis angustifolia, bed near Refugio Beach State Park, 38 km west confined to the exten- sive kelp bed situated between Refugio Beach State Park and Arroyo Hondo-a distance

  5. Social Behavior and Ecology of "Southern Resident" Killer Whales (Orcinus orca) Jennifer Anne Marsh

    E-Print Network [OSTI]

    an extremely cohesive social structure (Bigg, Olesiuki, Ellis, Ford, & Balcomb, 1990), fluctuations in social state, which also include "transient" and "offshore" forms (Ford, Ellis & Balcomb, 2000). There are two matrilineal lines (Bigg, Olesiuki, Ellis, Ford, & Balcomb, 1990). "Northern resident" killer whales utilize

  6. Echolocation-based foraging by harbor porpoises and sperm whales, including effects of noise and acoustic propagation

    E-Print Network [OSTI]

    DeRuiter, Stacy L

    2008-01-01T23:59:59.000Z

    In this thesis, I provide quantitative descriptions of toothed whale echolocation and foraging behavior, including assessment of the effects of noise on foraging behavior and the potential influence of ocean acoustic ...

  7. The auditory system of the minke whale (Balaenoptera acutorostrata) : a potential fatty sound reception pathway in a mysticete cetacean

    E-Print Network [OSTI]

    Yamato, Maya

    2012-01-01T23:59:59.000Z

    Despite widespread concerns about the effects of anthropogenic noise on baleen whales (suborder Mysticeti), we lack basic information about their auditory physiology for comprehensive risk assessments. Hearing ranges and ...

  8. Effects of boat traffic on the behavior of gray whales, Eschrichtius robustus, in Bahia Magdalena, Baja California Sur, Mexico: a bioacoustic assessment

    E-Print Network [OSTI]

    Ollervides, Francisco

    1997-01-01T23:59:59.000Z

    functions, whales are dependent on acoustic signaling for spacing (positioning), attracting conspecifics (advertising reproductive status), and alerting against danger (predators) (Reeves 1977). Whales must be able to accommodate to the ambient noise... that prevails at their specific location, so that their sounds and signals are receivable, Dahlheim (1987) suggested that gray whales occupy specific acoustic niches related to specific ambient noise of these lagoons. Survival probabilities of any species...

  9. Images of Moby-Dick: An exhibition of editions of Herman Melville's great novel of whaling

    E-Print Network [OSTI]

    1995-01-01T23:59:59.000Z

    : University Press of Kansas, 1995), the culmination of many years of study of Melville's great novel by Elizabeth A. Schultz, professor of English at the University of Kansas. Herman Melville's Moby-Dick; or, The Whale, a work which fills the mind's eye... of Moby-Dick presents a selection of these illustrated editions, collected by Professor Schultz during her study of Moby-Dick and now generously donated to the Kenneth Spencer Research Library. Professor Schultz's gift collection, supplemented here...

  10. Temporal and Spatial Analysis of Killer Whale Sightings in the Galapagos Marine Reserve, Ecuador

    E-Print Network [OSTI]

    Smith, Kerri

    2012-07-16T23:59:59.000Z

    of ENSO events have been reported in several locations (e.g. Monterey Bay, California; the Gulf of California; Magdalena Bay, Mexico; Bahia de la Paz, Mexico) and may affect the habitat use and community structure of cetaceans in the GMR (Flores... for identifying individual killer whales, social groups and residency in other populations, such as Alaska, the Eastern Tropical Pacific, and along the Northwest Pacific coast of North America (e. g. Dahlheim, 1997; Olson and Gerrodette, 2008, Durban et al...

  11. Measuring the Impact of Tidal Power Installations on Endangered...

    Energy Savers [EERE]

    Renewable Power Company (ORPC) is conducting a two-year study on the effects of tidal turbines on endangered beluga whales in Cook Inlet, Alaska-home to some of the greatest tidal...

  12. Occurrence, behavior and genetic diversity of bowhead whales in the Western Sea of Okhotsk, Russia

    E-Print Network [OSTI]

    MacLean, Stephen Ahgeak

    2012-06-07T23:59:59.000Z

    between the two bays that make up Akademii Gulf. 21 In 1999 the main focus of the boat-based surveys was to collect photographs for the identification of individual whales to estimate the population using mark-recapture methods. This required... approaching the pods as closely as possible to try to obtain photographs of the right and left sides of the head and back and the ventral surface of the flukes. Photographs were taken with a 35 mm camera (Canon EOS 3) with a 100 ? 400 mm zoom lens...

  13. Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci

    E-Print Network [OSTI]

    Hunter, Devra Denise

    2005-11-01T23:59:59.000Z

    Century commercial whaling. This investigation used more accurate laboratory techniques to score alleles, had a larger sample size that was divided into two groups (mainland Alaska and St. Lawrence Island (SLI)), and used a moderately different set...

  14. Abundance of fin whales in West Greenland in 2007 M.P. HEIDE-JRGENSEN*, K.L. LAIDRE*+, M. SIMON*, M.L. BURT$, D.L. BORCHERS$ AND M. RASMUSSEN#

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Abundance of fin whales in West Greenland in 2007 M.P. HEIDE-JŘRGENSEN*, K.L. LAIDRE*+, M. SIMON transect survey of fin whales (Balaenoptera physalus) conducted off West Greenland in 2007 was used of the survey plane. The abundance estimate furthermore only represents the coastal areas of West Greenland

  15. Ecosystem Scale Acoustic Sensing Reveals Humpback Whale Behavior Synchronous with Herring Spawning Processes and Re-Evaluation Finds No Effect of Sonar on Humpback Song Occurrence in the Gulf of Maine in Fall 2006

    E-Print Network [OSTI]

    Gong, Zheng

    We show that humpback-whale vocalization behavior is synchronous with peak annual Atlantic herring spawning processes in the Gulf of Maine. With a passive, wide-aperture, densely-sampled, coherent hydrophone array towed ...

  16. Interactive Environments

    E-Print Network [OSTI]

    project assignment of an interactive social space, built up from autonomously operating smart building, interactive spaces in which people and buildings engage in a mutual relationship with one other. By connecting the data and experiences that develop though this relationship between buildings and their inhabitants

  17. 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

  18. 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformation for and NovelFEG-SEM with0, FirstIntelligenceInteractive

  19. Kenai Tyonek Kasilof Nikiski Soldotna Salamatof KENAI BELUGA RIVER

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997EnvironmentElectricityrgy ConsumptionFields 2004

  20. Kenai Tyonek Kasilof Nikiski Soldotna Salamatof KENAI BELUGA RIVER

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997EnvironmentElectricityrgy ConsumptionFields 2004Oil

  1. Kenai Tyonek Kasilof Nikiski Soldotna Salamatof KENAI BELUGA RIVER

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997EnvironmentElectricityrgy ConsumptionFields

  2. Interactive portraiture : designing intimate interactive experiences

    E-Print Network [OSTI]

    Zuckerman, Orit

    2006-01-01T23:59:59.000Z

    In this thesis I present a set of interactive portrait experiences that strive to create an intimate connection between the viewer and the portrayed subject; an emotional experience, one of personal reflection. My interactive ...

  3. PDSF Interactive Batch Jobs

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

    Interactive Batch Jobs Running Interactive Batch Jobs You cannot login to the PDSF batch nodes directly but you can run an interactive session on a batch node using either qlogin...

  4. COSEWIC Status Report Killer Whales

    E-Print Network [OSTI]

    & Ellis, 1999; Ford, Ellis & Balcomb, 2000). This new information has bearing on the listing of killer, upubl. data NE Pacific Southern Residents 78 K. Balcomb unpubl. data NE PacificTransients 219 Fordand

  5. Interaction of Polycrystalline CVD

    E-Print Network [OSTI]

    Adler, Joan

    Interaction of Polycrystalline CVD Diamond Thin Films with Atomic Oxygen Ze'ev Shpilman #12;#12;Interaction of Polycrystalline CVD Diamond Thin Films with Atomic Oxygen Research thesis In Partial.................................................................... 6 1.2.1 Polycrystalline CVD diamond films: growth and structure 7 1.3. Interaction of carbon

  6. 36284 Federal Register / Vol. 79, No. 123 / Thursday, June 26, 2014 / Proposed Rules threat (e.g., fishery interactions, ship

    E-Print Network [OSTI]

    qualifies the Central North Pacific humpback whale population for delisting under the ESA. Petition Finding of extinction to this DPS. Based on the results of the status review, we will then determine whether delisting

  7. Beam-Bem interactions

    SciTech Connect (OSTI)

    Kim, Hyung Jin; /Fermilab

    2011-12-01T23:59:59.000Z

    In high energy storage-ring colliders, the nonlinear effect arising from beam-beam interactions is a major source that leads to the emittance growth, the reduction of beam life time, and limits the collider luminosity. In this paper, two models of beam-beam interactions are introduced, which are weak-strong and strong-strong beam-beam interactions. In addition, space-charge model is introduced.

  8. Is Gravity an Interaction?

    E-Print Network [OSTI]

    Felix M. Lev

    2010-05-16T23:59:59.000Z

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

  9. Nerve-pulse interactions

    SciTech Connect (OSTI)

    Scott, A.C.

    1982-01-01T23:59:59.000Z

    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.

  10. Strongly interacting Fermi gases

    E-Print Network [OSTI]

    Bakr, W.

    Strongly interacting gases of ultracold fermions have become an amazingly rich test-bed for many-body theories of fermionic matter. Here we present our recent experiments on these systems. Firstly, we discuss high-precision ...

  11. Human-machine interactions

    SciTech Connect (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)

    2009-04-28T23:59:59.000Z

    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.

  12. Interacting With the Pharmaceutical Industry

    E-Print Network [OSTI]

    Hayden, Stephen R

    2003-01-01T23:59:59.000Z

    INTERACTING WITH THE PHARMACEUTICAL INDUSTRY Stephen R.to interactions with the pharmaceutical industry! This is ancome from the pharmaceutical industry. It is also reality

  13. 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...

  14. Dike/Drift Interactions

    SciTech Connect (OSTI)

    E. Gaffiney

    2004-11-23T23:59:59.000Z

    This report presents and documents the model components and analyses that represent potential processes associated with propagation of a magma-filled crack (dike) migrating upward toward the surface, intersection of the dike with repository drifts, flow of magma in the drifts, and post-magma emplacement effects on repository performance. The processes that describe upward migration of a dike and magma flow down the drift are referred to as the dike intrusion submodel. The post-magma emplacement processes are referred to as the post-intrusion submodel. Collectively, these submodels are referred to as a conceptual model for dike/drift interaction. The model components and analyses of the dike/drift interaction conceptual model provide the technical basis for assessing the potential impacts of an igneous intrusion on repository performance, including those features, events, and processes (FEPs) related to dike/drift interaction (Section 6.1).

  15. Being Interactive Services and

    E-Print Network [OSTI]

    for engineering software and more than sufficient justification for all the inter- est in services. AlthoughBeing Interactive Services and Situations 4 SEPTEMBER · OCTOBER 2001 http the Editor in Chief ... F orget objects. The killer buzzword of our era is now services. And who isn

  16. Being Interactive Health Care

    E-Print Network [OSTI]

    Being Interactive Treating Health Care T he numbers are staggering. In a chilling report, the U care, training staff, and accrediting staff and health-care facilities, which involve determin- ing.ahrq.gov/clinic/ptsafety/summary.htm). Pressures on Health Care To come up with a credible approach for improv- ing patient safety, we need

  17. The Digital Interactive Video

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Digital Interactive Video Exploration and Reflection (Diver) system lets users create virtual pathways through existing video content using a virtual camera and an annotation window for commentary repurposing, and discussion. W ith the inexorable growth of low-cost consumer video elec- tronics

  18. Interactive design center.

    SciTech Connect (OSTI)

    Pomplun, Alan R. (Sandia National Laboratories, Livermore, CA)

    2005-07-01T23:59:59.000Z

    Sandia's advanced computing resources provide researchers, engineers and analysts with the ability to develop and render highly detailed large-scale models and simulations. To take full advantage of these multi-million data point visualizations, display systems with comparable pixel counts are needed. The Interactive Design Center (IDC) is a second generation visualization theater designed to meet this need. The main display integrates twenty-seven projectors in a 9-wide by 3-high array with a total display resolution of more than 35 million pixels. Six individual SmartBoard displays offer interactive capabilities that include on-screen annotation and touch panel control of the facility's display systems. This report details the design, implementation and operation of this innovative facility.

  19. Interactive Transportable Architecture

    E-Print Network [OSTI]

    Oliver Irschitz; Priam Givord; Newyork Exit Newyork; Flavia Sparacino

    Transportable architecture which embeds the means to communicate with real or imaginary digital information spaces in a natural fashion offers unprecedented opportunities to make multimedia experiences available to the public almost everywhere. This installation demonstrates an example of interactive transportable architecture which incorporates unencumebered real-time body tracking and gesture recognition to explore a 3-D cityscape and a brain-like web-based information space.

  20. ELEMENTARY PARTICLE INTERACTIONS

    SciTech Connect (OSTI)

    EFREMENKO, YURI; HANDLER, THOMAS; KAMYSHKOV, YURI; SIOPSIS, GEORGE; SPANIER, STEFAN

    2013-07-30T23:59:59.000Z

    The High-Energy Elementary Particle Interactions group at UT during the last three years worked on the following directions and projects: Collider-based Particle Physics; Neutrino Physics, particularly participation in “NO?A”, “Double Chooz”, and “KamLAND” neutrino experiments; and Theory, including Scattering amplitudes, Quark-gluon plasma; Holographic cosmology; Holographic superconductors; Charge density waves; Striped superconductors; and Holographic FFLO states.

  1. Detection of molecular interactions

    DOE Patents [OSTI]

    Groves, John T. (Berkeley, CA); Baksh, Michael M. (Fremont, CA); Jaros, Michal (Brno, CH)

    2012-02-14T23:59:59.000Z

    A method and assay are described for measuring the interaction between a ligand and an analyte. The assay can include a suspension of colloidal particles that are associated with a ligand of interest. The colloidal particles are maintained in the suspension at or near a phase transition state from a condensed phase to a dispersed phase. An analyte to be tested is then added to the suspension. If the analyte binds to the ligand, a phase change occurs to indicate that the binding was successful.

  2. BNL | ATF Interaction Chambers

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone byDearTechnicalAwardssupportsBESElectron-plasma Interaction

  3. PDSF Interactive Batch 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeedingOptimizing I/OP-GlycoproteinInteractive Batch Jobs Running

  4. PDSF 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeedingOptimizing I/OP-GlycoproteinInteractive Batch Jobs

  5. Cotton and Protein Interactions

    SciTech Connect (OSTI)

    Goheen, Steven C.; Edwards, J. V.; Rayburn, Alfred R.; Gaither, Kari A.; Castro, Nathan J.

    2006-06-30T23:59:59.000Z

    The adsorbent properties of important wound fluid proteins and cotton cellulose are reviewed. This review focuses on the adsorption of albumin to cotton-based wound dressings and some chemically modified derivatives targeted for chronic wounds. Adsorption of elastase in the presence of albumin was examined as a model to understand the interactive properties of these wound fluid components with cotton fibers. In the chronic non-healing wound, elastase appears to be over-expressed, and it digests tissue and growth factors, interfering with the normal healing process. Albumin is the most prevalent protein in wound fluid, and in highly to moderately exudative wounds, it may bind significantly to the fibers of wound dressings. Thus, the relative binding properties of both elastase and albumin to wound dressing fibers are of interest in the design of more effective wound dressings. The present work examines the binding of albumin to two different derivatives of cotton, and quantifies the elastase binding to the same derivatives following exposure of albumin to the fiber surface. An HPLC adsorption technique was employed coupled with a colorimetric enzyme assay to quantify the relative binding properties of albumin and elastase to cotton. The results of wound protein binding are discussed in relation to the porosity and surface chemistry interactions of cotton and wound proteins. Studies are directed to understanding the implications of protein adsorption phenomena in terms of fiber-protein models that have implications for rationally designing dressings for chronic wounds.

  6. Information entropy of humpback whale songs

    E-Print Network [OSTI]

    Rocha, Luis

    , and 1996, Joint Program in Ocean and Electrical Engineering, · Electrical and Computer Engineering · Department of Electrical and Computer Engineering, University of Massachusetts Dartmouth John R. Buck · S.B. MIT, 1989, electrical engineering and humanities · S.M., E.E., and Ph.D. MIT/WHOI, 1991, 1992

  7. SAMPLE BOWHEAD ABORIGINAL WHALING MANAGEMENT PROCEDURE TRIALS

    E-Print Network [OSTI]

    Givens, Geof H.

    for survival (Jackson and Bliss, 1984). Desert annual plant communities experience high variation in the amount, DLV & TEH. The Philecology Foundation of Fort Worth Texas provided additional support. 5Author State University, Fort Collins, Colorado 80523, USA; and 4 B2 Earthscience, University of Arizona

  8. The Evolution of Whales Geology 230

    E-Print Network [OSTI]

    Kammer, Thomas

    Institution #12;Basilosaurus: 37 MY old Ankle, foot, and toes of Basilosaurus excavated in Wadi Hitan, Egypt working at the base of the tail at a Basilosaurus excavation in Wadi Hitan, Egypt. We are particularly are found. Photograph ©1991 Philip Gingerich. #12;Virtually complete skeleton of Dorudon excavated in Wadi

  9. The Evolution of Whales Geology 331

    E-Print Network [OSTI]

    Kammer, Thomas

    of Basilosaurus excavated in Wadi Hitan, Egypt. The foot as shown is approximately 12 cm long. Photograph ©1991NGok #12;Dr. B. Holly Smith working at the base of the tail at a Basilosaurus excavation in Wadi Hitan skeleton of Dorudon excavated in Wadi Hitan, Egypt. Note the retention of hind limbs, feet, and toes like

  10. MIDOS : Multimodal Interactive DialOgue System

    E-Print Network [OSTI]

    Adler, Aaron D. (Aaron Daniel), 1979-

    2009-01-01T23:59:59.000Z

    Interactions between people are typically conversational, multimodal, and symmetric. In conversational interactions, information flows in both directions. In multimodal interactions, people use multiple channels. In symmetric ...

  11. Theoretical studies of molecular interactions

    SciTech Connect (OSTI)

    Lester, W.A. Jr. [Univ. of California, Berkeley (United States)

    1993-12-01T23:59:59.000Z

    This research program is directed at extending fundamental knowledge of atoms and molecules including their electronic structure, mutual interaction, collision dynamics, and interaction with radiation. The approach combines the use of ab initio methods--Hartree-Fock (HF) multiconfiguration HF, configuration interaction, and the recently developed quantum Monte Carlo (MC)--to describe electronic structure, intermolecular interactions, and other properties, with various methods of characterizing inelastic and reaction collision processes, and photodissociation dynamics. Present activity is focused on the development and application of the QMC method, surface catalyzed reactions, and reorientation cross sections.

  12. Surprising Quasiparticle Interactions in Graphene

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

    Surprising Quasiparticle Interactions in Graphene Print Until now, the world's electronics have been dominated by silicon, whose properties, while excellent, significantly limit...

  13. Interactive Video Cubism Sidney Fels

    E-Print Network [OSTI]

    Fels, Sidney S.

    Interactive Video Cubism Sidney Fels Dept. of Electrical and Computer Engineering University@mic.atr.co.jp ABSTRACT This paper presents an interactive video visualization system. In this visualization video data is considered to be a block of three dimensional data where frames of video data comprise the third dimension

  14. Interaction of "rigid" quantum systems

    E-Print Network [OSTI]

    A. A. Kolpakov; A. G. Kolpakov

    2013-01-03T23:59:59.000Z

    We introduce the notion of a "rigid" quantum system as a system with constant relative positions of its nuclei and constant relative distribution of the electrons with respect to the nuclei. In accordance with this definition, a molecule which does not interact with other objects, is a "rigid" quantum system. Molecule is also "rigid" if it interacts with other objects, but the interaction does not change the intrinsic structure of the molecule (or this change can be neglected). Several "rigid" quantum systems interact one with another in the quantum manner. The interaction is ruled by the Schr{\\"o}dinger equation [1] written for all the particles of the systems under consideration. We consider the case when the external potential is zero.

  15. Perturbative gadgets without strong interactions

    E-Print Network [OSTI]

    Yudong Cao; Daniel Nagaj

    2014-08-25T23:59:59.000Z

    Perturbative gadgets are used to construct a quantum Hamiltonian whose low-energy subspace approximates a given quantum $k$-body Hamiltonian up to an absolute error $\\epsilon$. Typically, gadget constructions involve terms with large interaction strengths of order $\\text{poly}(\\epsilon^{-1})$. Here we present a 2-body gadget construction and prove that it approximates a target many-body Hamiltonian of interaction strength $\\gamma = O(1)$ up to absolute error $\\epsilon\\ll\\gamma$ using interactions of strength $O(\\epsilon)$ instead of the usual inverse polynomial in $\\epsilon$. A key component in our proof is a new condition for the convergence of the perturbation series, allowing our gadget construction to be applied in parallel on multiple many-body terms. We also show how to apply this gadget construction for approximating 3- and $k$-body Hamiltonians. The price we pay for using much weaker interactions is a large overhead in the number of ancillary qubits, and the number of interaction terms per particle, both of which scale as $O(\\text{poly}(\\epsilon^{-1}))$. Our strong-from-weak gadgets have their primary application in complexity theory (QMA hardness of restricted Hamiltonians, a generalized area law counterexample, gap amplification), but could also motivate practical implementations with many weak interactions simulating a much stronger quantum many-body interaction.

  16. Succinct non-Interactive arguments

    E-Print Network [OSTI]

    Chiesa, Alessandro

    2014-01-01T23:59:59.000Z

    Succinct non-interactive arguments (SNARGs), also known as "CS proofs" [Micali, FOCS 1994], enable verifying NP statements with much lower complexity than required for classical NP verification (in fact, with complexity ...

  17. Interactive crayon rendering for animation

    E-Print Network [OSTI]

    Halstead, Howard John IV

    2006-04-12T23:59:59.000Z

    This thesis describes the design and implementation of an interactive, nonphotorealistic rendering system for three-dimensional computer animation. The system provides a two-dimensional interface for coloring successive frames of animation using a...

  18. Non-standard Neutrino Interactions

    E-Print Network [OSTI]

    D. Hernandez

    2009-11-25T23:59:59.000Z

    Theories beyond the Standard Model must respect its gauge symmetry. This implies strict constraints on the possible models of Non-Standard Neutrino Interactions (NSIs). We review here the present status of NSIs from the point of view of effective field theory. Our recent work on the restrictions implied by Standard Model gauge invariance is provided along with some examples of possible gauge invariant models featuring non-standard interactions.

  19. Technology Enhanced Interaction Framework Kewalin Angkananon

    E-Print Network [OSTI]

    Technology Enhanced Interaction Framework Kewalin Angkananon ECS University of Southampton interaction framework to help design technology to support communication between people and improve interactions between people, technology and objects, particularly in complex situations. A review of existing

  20. Dynamical Properties of Interaction Data

    E-Print Network [OSTI]

    Bramson, Aaron

    2015-01-01T23:59:59.000Z

    Network dynamics are typically presented as a time series of network properties captured at each period. The current approach examines the dynamical properties of transmission via novel measures on an integrated, temporally extended network representation of interaction data across time. Because it encodes time and interactions as network connections, static network measures can be applied to this "temporal web" to reveal features of the dynamics themselves. Here we provide the technical details and apply it to agent-based implementations of the well-known SEIR and SEIS epidemiological models.

  1. Cosmology and the weak interaction

    SciTech Connect (OSTI)

    Schramm, D.N. (Fermi National Accelerator Lab., Batavia, IL (USA)):(Chicago Univ., IL (USA))

    1989-12-01T23:59:59.000Z

    The weak interaction plays a critical role in modern Big Bang cosmology. This review will emphasize two of its most publicized cosmological connections: Big Bang nucleosynthesis and Dark Matter. The first of these is connected to the cosmological prediction of Neutrino Flavours, N{sub {nu}} {approximately} 3 which is now being confirmed at SLC and LEP. The second is interrelated to the whole problem of galaxy and structure formation in the universe. This review will demonstrate the role of the weak interaction both for dark matter candidates and for the problem of generating seeds to form structure. 87 refs., 3 figs., 5 tabs.

  2. UBIQUITOUS COMPUTING AND INTERACTION Kaj Grnbk, Professor,

    E-Print Network [OSTI]

    actuator based interaction >"Gamification" of training >Performance measurement >In near future also focus

  3. PHASE TRANSFORMATIONS, STABILITY AND MATERIALS INTERACTIONS

    E-Print Network [OSTI]

    Morris, Jr., J.W.

    2010-01-01T23:59:59.000Z

    engine) Environmental Interactions Ceramic Membrane Development Research Opportunities: •Fundamentals of hydrogen-

  4. 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

  5. Rotational ratchets with dipolar interactions

    E-Print Network [OSTI]

    Sebastian Jäger; Sabine H. L. Klapp

    2012-10-12T23:59:59.000Z

    We report results from a computer simulation study on the rotational ratchet effect in systems of magnetic particles interacting via dipolar interactions. The ratchet effect consists of directed rotations of the particles in an oscillating magnetic field, which lacks a net rotating component. Our investigations are based on Brownian dynamics simulations of such many-particle systems. We investigate the influence of both, the random and deterministic contributions to the equations of motion on the ratchet effect. As a main result, we show that dipolar interactions can have an enhancing as well as a dampening effect on the ratchet behavior depending on the dipolar coupling strength of the system under consideration. The enhancement is shown to be caused by an increase in the effective field on a particle generated by neighboring magnetic particles, while the dampening is due to restricted rotational motion in the effective field. Moreover, we find a non-trivial influence of the short-range, repulsive interaction between the particles.

  6. Interacting new generalized Chaplygin gas

    E-Print Network [OSTI]

    Mubasher Jamil

    2009-10-20T23:59:59.000Z

    We have presented a model in which the new generalized Chaplygin gas interacts with matter. We find that there exists a stable scaling solution at late times in the evolution of the universe. Moreover, the phantom crossing scenario is observed in this model.

  7. Mapping Interactions Within the Evolving

    E-Print Network [OSTI]

    Menczer, Filippo

    Laboratory School of Library and Information Science Indiana University, Bloomington, IN http://cns.iu.edu 13 #12;Research Questions · What interactions are made visible by analysis of formal communication messages over 2 years (Jan. `09 to Jan. `11) ­ Subscription lists, retrieved toward the middle and end

  8. Numerical Modelling of Interaction between

    E-Print Network [OSTI]

    Sóbester, András

    plasma in arc furnace used in toxic waste destruction Plasma etching semiconductor High intensity arc lamp Electrode temperature after 1ms of arcing with power density of 3x109 W.m-2 Electrode temperatureNumerical Modelling of Interaction between the Electric Arc and Electrodes Principal researcher: W

  9. Precision Tests of Electroweak Interactions

    SciTech Connect (OSTI)

    Akhundov, Arif [Institute of Physics, Azerbaijan Academy of Sciences, 370143 Baku (Azerbaijan); Departamento de Fisica Teorica and IFIC, Universidad de Valencia-CSIC, 46100 Valencia (Spain)

    2008-04-21T23:59:59.000Z

    The status of the precision tests of the electroweak interactions is reviewed in this paper. An emphasis is put on the Standard Model analysis based on measurements at LEP/SLC and the Tevatron. The results of the measurements of the electroweak mixing angle in the NuTeV experiment and the future prospects are discussed.

  10. Dimuon production in hadronic interactions

    SciTech Connect (OSTI)

    Cox, B.

    1982-10-01T23:59:59.000Z

    This report summarizes the new data submitted to the XXI International Conference on High Energy Physics on high mass dimuon production in ..pi../sup -/N and anti pN interactions by Fermilab Experiment E-537, CERN Experiment NA3 and Fermilab Experiment E-326. Successes and failures of the Drell-Yan model and low order QCD are reviewed. New results on the production of the J/psi from E-537, NA3 and CERN experiment WAll are also reported.

  11. 3 D interactive pictorial maps

    E-Print Network [OSTI]

    Naz, Asma

    2005-02-17T23:59:59.000Z

    of simplififcation and exaggeration.. . . . . . . . . . . . . . 21 8 3 D polygonal text in Maya. . . . . . . . . . . . . . . . . . . . . . . . 22 9 Final 3 D model of Italy with text. . . . . . . . . . . . . . . . . . . . 23 10 Top view of 3 D model of France... the files in a format that is suitable for web viewing. 15 CHAPTER IV METHODOLOGY There are three major steps to making an interactive pictorial map. The fifrst step is to build the 3 D model using a modeling software, Maya. The second step is to apply...

  12. Surprising Quasiparticle Interactions in Graphene

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystalline GalliumSuppression ofSurprising Quasiparticle Interactions

  13. Interaction blending equations enhance reformulated gasoline profitability

    SciTech Connect (OSTI)

    Snee, R.D. (Joiner Associates, Madison, WI (United States)); Morris, W.E.; Smith, W.E.

    1994-01-17T23:59:59.000Z

    The interaction approach to gasoline blending gives refiners an accurate, simple means of re-evaluating blending equations and increasing profitability. With reformulated gasoline specifications drawing near, a detailed description of this approach, in the context of reformulated gasoline is in order. Simple mathematics compute blending values from interaction equations and interaction coefficients between mixtures. A timely example of such interactions is: blending a mixture of catalytically cracked gasoline plus light straight run (LSR) from one tank with alkylate plus reformate from another. This paper discusses blending equations, using interactions, mixture interactions, other blending problems, and obtaining equations.

  14. 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the Nanoscale LandscapeImportsBG4,Measurements+ CrossInteractive

  15. Introduction Counterpropagating interactions Numerical methods Co-propagating interactions A result on energy transfer Solitary water wave interactions

    E-Print Network [OSTI]

    Craig, Walter

    on energy transfer Solitary water wave interactions Walter Craig Department of Mathematics & Statistics (energy loss) and S (amplitude change). Walter Craig McMaster University Solitary wave interactions #12 (energy loss) and S (amplitude change). Walter Craig McMaster University Solitary wave interactions #12

  16. "deinewahl02" A Demonstrator for Interactive Television

    E-Print Network [OSTI]

    Masthoff, Judith

    "deinewahl02" A Demonstrator for Interactive Television Dr. Sepideh Chakaveh Olaf Geuer Fraunhofer Institute Media Communication Fraunhofer Institute Media Communication Competence Center Interactive innovation. In here we are considering to reverse this process, i.e. implementing internet type applications

  17. Ultracold Fermi gas with repulsive interactions

    E-Print Network [OSTI]

    Lee, Ye-Ryoung

    2012-01-01T23:59:59.000Z

    This thesis presents results from experiments of ultracold atomic Fermi gases with repulsive interaction. Itinerant ferromagnetism was studied by simulating the Stoner model with a strongly interacting Fermi gas of ultracold ...

  18. Arm-Hand-Finger Video Game Interaction

    E-Print Network [OSTI]

    Logsdon, Drew Anthony

    2012-02-14T23:59:59.000Z

    Despite the growing popularity and expansion of video game interaction techniques and research in the area of hand gesture recognition, the application of hand gesture video game interaction using arm, hand, and finger motion has not been...

  19. Stability Index of Interaction forms Joseph Abdou

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Stability Index of Interaction forms Joseph Abdou December 15, 2008 Abstract An interaction form, 106-112 boulevard de l'H^opital 75647 Paris Cedex 13 - France; email: abdou@univ-paris1.fr 1 halshs

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

    Open Energy Info (EERE)

    Not Available Website: infrastructureafrica.orgdocumentstoolslistinteractive-pdf-maps Transport Toolkit Region(s): Africa & Middle East Interactive infrastructure maps by...

  1. An Introduction to Wave-Current Interactions

    E-Print Network [OSTI]

    Smith, Jerome A.

    -scale wave focusing across a storm can re-direct the wind-stress? #12;1. Adiabatic interaction StartAn Introduction to Wave-Current Interactions Jerry Smith, MPL-SIO-UCSD jasmith@ucsd.edu http just want to hold up your hand. #12;Some Questions in Wave-Current Interaction Physics 1. Adiabatic

  2. Multisurface Interaction in the WILD Room

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    - 1 - Multisurface Interaction in the WILD Room Michel Beaudouin-Lafon, Stéphane Huot, Mathieu University Abstract The WILD room (wall-sized interaction with large datasets) serves as a testbed. (2012), "Multisurface Interaction in the WILD Room", IEEE Computer, vol 45, nº 4, pp. 48-56. DOI

  3. Turbulence transport with nonlocal interactions

    SciTech Connect (OSTI)

    Linn, R.R.; Clark, T.T.; Harlow, F.H.; Turner, L.

    1998-03-01T23:59:59.000Z

    This preliminary report describes a variety of issues in turbulence transport analysis with particular emphasis on closure procedures that are nonlocal in wave-number and/or physical space. Anomalous behavior of the transport equations for large scale parts of the turbulence spectrum are resolved by including the physical space nonlocal interactions. Direct and reverse cascade processes in wave-number space are given a much richer potential for realistic description by the nonlocal formulations. The discussion also describes issues, many still not resolved, regarding new classes of self-similar form functions.

  4. Stochastic pump of interacting particles

    E-Print Network [OSTI]

    Chaudhuri, Debasish

    2010-01-01T23:59:59.000Z

    We consider the overdamped motion of Brownian particles, interacting via particle exclusion, in an external potential that varies with time and space. We show that periodic potentials that maintain specific position-dependent phase relations generate time-averaged directed current of particles. We obtain analytic results for a lattice version of the model using a recently developed perturbative approach. Many interesting features like particle-hole symmetry, current reversal with changing density, and system-size dependence of current are obtained. We propose possible experiments to test our predictions.

  5. Stochastic pump of interacting particles

    E-Print Network [OSTI]

    Debasish Chaudhuri; Abhishek Dhar

    2010-12-28T23:59:59.000Z

    We consider the overdamped motion of Brownian particles, interacting via particle exclusion, in an external potential that varies with time and space. We show that periodic potentials that maintain specific position-dependent phase relations generate time-averaged directed current of particles. We obtain analytic results for a lattice version of the model using a recently developed perturbative approach. Many interesting features like particle-hole symmetry, current reversal with changing density, and system-size dependence of current are obtained. We propose possible experiments to test our predictions.

  6. Surprising Quasiparticle Interactions in Graphene

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystalline GalliumSuppression ofSurprising Quasiparticle Interactions in

  7. Compact submanifolds supporting singular interactions

    SciTech Connect (OSTI)

    Kaynak, Burak Tevfik, E-mail: burak.kaynak@boun.edu.tr; Teoman Turgut, O., E-mail: turgutte@boun.edu.tr

    2013-12-15T23:59:59.000Z

    A quantum particle moving under the influence of singular interactions on embedded surfaces furnish an interesting example from the spectral point of view. In these problems, the possible occurrence of a bound-state is perhaps the most important aspect. Such systems can be introduced as quadratic forms and generically they do not require renormalization. Yet an alternative path through the resolvent is also beneficial to study various properties. In the present work, we address these issues for compact surfaces embedded in a class of ambient manifolds. We discover that there is an exact bound state solution written in terms of the heat kernel of the ambient manifold for a range of coupling strengths. Moreover, we develop techniques to estimate bounds on the ground state energy when several surfaces, each of which admits a bound state solution, coexist. -- Highlights: •Schrödinger operator with singular interactions supported on compact submanifolds. •Exact bound-state solution in terms of the heat kernel of the ambient manifold. •Generalization of the variational approach to a collection of submanifolds. •Existence of a lower bound for a unique ground state energy.

  8. Quantum Walk of Two Interacting Bosons

    E-Print Network [OSTI]

    Yoav Lahini; Mor Verbin; Sebastian D. Huber; Yaron Bromberg; Rami Pugatch; Yaron Silberberg

    2011-05-11T23:59:59.000Z

    We study the effect of interactions on the bosonic two-particle quantum walk and its corresponding spatial correlations. The combined effect of interactions and Hanbury-Brown Twiss interference results in unique spatial correlations which depend on the strength of the interaction, but not on its sign. The results are explained in light of the two-particle spectrum and the physics of attractively and repulsively bound pairs. We experimentally measure the weak interaction limit of these effects in nonlinear photonic lattices. Finally, we discuss an experimental approach to observe the strong interaction limit using single atoms in optical lattices.

  9. Muon collider interaction region design

    SciTech Connect (OSTI)

    Alexahin, Y.I.; Gianfelice-Wendt, E.; Kashikhin, V.V.; Mokhov, N.V.; Zlobin, A.V.; /Fermilab; Alexakhin, V.Y.; /Dubna, JINR

    2010-05-01T23:59:59.000Z

    Design of a muon collider interaction region (IR) presents a number of challenges arising from low {beta}* < 1 cm, correspondingly large beta-function values and beam sizes at IR magnets, as well as the necessity to protect superconducting magnets and collider detectors from muon decay products. As a consequence, the designs of the IR optics, magnets and machine-detector interface are strongly interlaced and iterative. A consistent solution for the 1.5 TeV c.o.m. muon collider IR is presented. It can provide an average luminosity of 10{sup 34} cm{sup -2}s{sup -1} with an adequate protection of magnet and detector components.

  10. On supersymmetric Dirac delta interactions

    E-Print Network [OSTI]

    J. Mateos Guilarte; J. M. Munoz Castaneda; A. Moreno Mosquera

    2015-01-28T23:59:59.000Z

    In this paper we construct $\\mathcal{N}=2$ supersymmetric (SUSY) quantum mechanics over several configurations of Dirac-$\\delta$ potentials from one single delta to a Dirac " comb \\rq\\rq. We show in detail how the building of supersymmetry on potentials with delta interactions placed in two or more points on the real line requires the inclusion of quasi-square wells. Therefore, the basic ingredient of a supersymmetric Hamiltonian containing two or more Dirac-$\\delta$s is the singular potential formed by a Dirac-$\\delta$ plus a step ($\\theta$) at the same point. In this $\\delta/\\theta$ SUSY Hamiltonian there is only one singlet ground state of zero energy annihilated by the two supercharges or a doublet of ground states paired by supersymmetry of positive energy depending on the relation between the Dirac well strength and the height of the step potential. We find a scenario of either unbroken supersymmetry with Witten index one or supersymmetry breaking when there is one " bosonic\\rq\\rq and one " fermionic\\rq\\rq ground state such that the Witten index is zero. We explain next the different structure of the scattering waves produced by three $\\delta/\\theta$ potentials with respect to the eigenfunctions arising in the non-SUSY case. In particular, many more bound states paired by supersymmetry exist within the supersymmetric framework compared with the non-SUSY problem. An infinite array of equally spaced $\\delta$-interactions of the same strength but alternatively attractive and repulsive are susceptible of being promoted to a ${\\cal N}=2$ supersymmetric system...

  11. Interacting agegraphic tachyon model of dark energy

    E-Print Network [OSTI]

    A. Sheykhi

    2009-11-16T23:59:59.000Z

    Scalar-field dark energy models like tachyon are often regarded as an effective description of an underlying theory of dark energy. In this Letter, we implement the interacting agegraphic dark energy models with tachyon field. We demonstrate that the interacting agegraphic evolution of the universe can be described completely by a single tachyon scalar field. We thus reconstruct the potential as well as the dynamics of the tachyon field according to the evolutionary behavior of interacting agegraphic dark energy.

  12. Quantifying turbidity current interactions with topography

    E-Print Network [OSTI]

    Straub, Kyle M

    2007-01-01T23:59:59.000Z

    This thesis advances our understanding of how transport properties of turbidity currents are mediated by interactions with seafloor topography, specifically channelized surfaces. Turbidity currents are responsible for ...

  13. Private Interactive Communication Across an Adversarial Channel

    E-Print Network [OSTI]

    Private Interactive Communication Across an Adversarial Channel Ran Gelles, Amit Sahai, and Akshay Wadia Department of Computer Science, University of California, Los Angeles, CA, USA {gelles, sahai

  14. Probing Higgs Boson Interactions At Future Colliders.

    E-Print Network [OSTI]

    Biswal, Sudhansu Sekhar

    2009-01-01T23:59:59.000Z

    ??We present in this thesis a detailed analysis of Higgs boson interactions at future colliders. In particular we examine, in a model independent way, the… (more)

  15. Universality of conductivity in interacting graphene

    E-Print Network [OSTI]

    A. Giuliani; V. Mastropietro; M. Porta

    2011-01-11T23:59:59.000Z

    The Hubbard model on the honeycomb lattice describes charge carriers in graphene with short range interactions. While the interaction modifies several physical quantities, like the value of the Fermi velocity or the wave function renormalization, the a.c. conductivity has a universal value independent of the microscopic details of the model: there are no interaction corrections, provided that the interaction is weak enough and that the system is at half filling. We give a rigorous proof of this fact, based on exact Ward Identities and on constructive Renormalization Group methods.

  16. INTERACTIVE COMPUTER GRAPHICS DISPLAYS FOR HIERARCHICAL DATA STRUCTURES

    E-Print Network [OSTI]

    Cahn, D.F.

    2010-01-01T23:59:59.000Z

    INTERACTIVE COMPUTER GRAPHICS DISPLAYS FOR HIERARCHICAL DATAINTERACTIVE COMPUTER GRAPHICS DISPLAYS FOR HIERARCHICAL DATAtem. INTERACTIVE COMPUTER GRAPHICS DISPLAYS FOR HIERARCHICAL

  17. Energy or Mass and Interaction

    E-Print Network [OSTI]

    Gustavo R Gonzalez-Martin

    2010-07-19T23:59:59.000Z

    A review. Problems: 1-Many empirical parameters and large dimension number; 2-Gravitation and Electrodynamics are challenged by dark matter and energy. Energy and nonlinear electrodynamics are fundamental in a unified nonlinear interaction. Nuclear energy appears as nonlinear SU(2) magnetic energy. Gravitation and electromagnetism are unified giving Einstein's equation and a geometric energy momentum tensor. A solution energy in the newtonian limit gives the gravitational constant G. Outside of this limit G is variable. May be interpreted as dark matter or energy. In vacuum, known gravitational solutions are obtained. Electromagnetism is an SU(2) subgroup. A U(1) limit gives Maxwell's equations. Geometric fields determine a generalized Dirac equation and are the germ of quantum physics. Planck's h and of Einstein's c are given by the potential and the metric. Excitations have quanta of charge, flux and spin determining the FQHE. There are only three stable 1/2 spin fermions. Mass is a form of energy. The rest energies of the fermions give the proton/electron mass ratio. Potential excitations have energies equal to the weak boson masses allowing a geometric interpretation of Weinberg's angle. SU(2) gives the anomalous magnetic moments of proton, electron, neutron and generates nuclear range attractive potentials strong enough to produce the binding energies of the deuteron and other nuclides. Lepton and meson masses are due to topological excitations. The geometric mass spectrum is satisfactory. The proton has a triple structure. The alpha constant is a geometric number.

  18. eschweizerbartxxx Interactions between alien species and restoration

    E-Print Network [OSTI]

    Pace, Michael L.

    eschweizerbartxxx Interactions between alien species and restoration of large-river ecosystems-river ecosystems that are the subject of restoration efforts also typically are heavily invaded by alien species interactions that link alien species and river restoration. Most obviously, restoration may be aimed

  19. Lattice polymers with two competing collapse interactions

    E-Print Network [OSTI]

    Andrea Bedini; Aleksander L Owczarek; Thomas Prellberg

    2013-11-05T23:59:59.000Z

    There have been separate studies of the polymer collapse transition, where the collapse was induced by two different types of attraction. In each case, the configurations of the polymer were given by the same subset of random walks being self-avoiding trails on the square lattice. Numerical evidence shows that when interacting via nearest-neighbour contacts, this transition is different from the collapse transition in square-lattice trails interacting via multiply visited sites. While both transitions are second-order, when interacting via nearest-neighbour contacts, the transition is relatively weak with a convergent specific heat, while when interacting via multiply visited sites, the specific heat diverges strongly. Moreover, an estimation of the crossover exponent for the nearest-neighbour contact interaction provides a value close to that of the canonical polymer collapse model of interacting self-avoiding walks, which also interact via nearest-neighbour contacts. From computer simulations using the flatPERM algorithm, we extend these studies by considering a model of self-avoiding trails on the square lattice containing both types of interaction, and which therefore contains all three of the models discussed above as special cases. We find that the strong multiply-visited site collapse is a singular point in the phase diagram and corresponds to a higher order multi-critical point separating a line of weak second-order transitions from a line of first-order transitions.

  20. AMAROK PIKAP: INTERACTIVE PERCUSSION PLAYING AUTOMOBILE*

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    AMAROK PIKAP: INTERACTIVE PERCUSSION PLAYING AUTOMOBILE* Selçuk ARTUT Sabanci University Faculty project utilizes an interactive system on the surface of an automobile that is specially modified of an automobile campaign: Amarok Pikap. The structure that forms the design will also be subjected to a technical

  1. DefectDomain Wall Interactions in Trigonal

    E-Print Network [OSTI]

    Gopalan, Venkatraman

    Defect­Domain Wall Interactions in Trigonal Ferroelectrics Venkatraman Gopalan,1 Volkmar Dierolf,2 walls in the trigonal ferroelectrics lithium niobate and lithium tantalate. It is shown that extrinsic questions re- garding intrinsic widths, defect­domain wall interactions, and static versus dynamic wall

  2. Contagious Development Neighbor Interactions in Deforestation

    E-Print Network [OSTI]

    Pfaff, Alex

    Contagious Development Neighbor Interactions in Deforestation Juan A. Robalino EfD Initiative-CATIE Alexander Pfaff Duke University October 2009 Abstract We estimate neighbor interactions in deforestation instrument for neighbors' deforestation using the slopes of neighbors' and neigh- bors' neighbors' parcels

  3. PROTEIN INTERACTIONS AND DISEASE MARICEL KANN

    E-Print Network [OSTI]

    Radivojac, Predrag

    and illnesses, including AIDS, cancer, and Alzheimer's disease. The goal of this session is to discuss interaction data to identify active pathways re- lated to HIV pathogenesis. A functional analysis for successful inference of protein interactions. Chen et al. developed a framework to mine disease

  4. Dynamic Positioning Systems Usability and Interaction Styles

    E-Print Network [OSTI]

    Dunlop, Mark D.

    started offshore- drilling in search of larger deposits of oil. With this, a new generation of vessels on interaction with Dynamic Positioning Systems (DP) and how new interaction styles can be introduced to make/multi-touch combined with hand-gestures to create a new type of user-experience. The aim for this research

  5. United States Department Atmospheric and Biospheric Interactions

    E-Print Network [OSTI]

    Standiford, Richard B.

    United States Department Atmospheric and Biospheric Interactions of Agriculture Forest Service coordinator. 1997. Atmospheric and biospheric interactions of gases and energy in the Pacific region century have caused a dramatic increase in global air pollution. This process has accelerated in the past

  6. Spatiotemporal Dynamics of Insect-Fire Interactions

    E-Print Network [OSTI]

    Moorcroft, Paul R.

    Spatiotemporal Dynamics of Insect-Fire Interactions A thesis presented by Heather Joan Lynch Heather Joan Lynch Spatiotemporal Dynamics of Insect-Fire Interactions Abstract Insect outbreaks on the dynamics and composition of forest ecosystems. Although it has long been speculated that forest fires

  7. Interactive Database Access with Statistics and Graphics

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    DbAccess The Manual Interactive Database Access with Statistics and Graphics Version 2.1.1 D. M and graphical needs of NSTX Physicists. Flexible views and joins are possible, including options for complex SQL General Atomics (GA Plot Objects) adds extensive graphical and interactive capabilities (and documentation

  8. Faculty and student out-of-classroom interaction: student perceptions of quality of interaction

    E-Print Network [OSTI]

    Alderman, Rosalind Veronica

    2008-10-10T23:59:59.000Z

    ; and, helpfulness of faculty. Results of their study highlighted faculty-student out-of- classroom interaction?s positive impact on collegiate satisfaction. They gathered data from the 1975 Freshman Questionnaire and the 1979 Graduating Students...FACULTY AND STUDENT OUT-OF-CLASSROOM INTERACTION: STUDENT PERCEPTIONS OF QUALITY OF INTERACTION A Dissertation by ROSALIND VERONICA ALDERMAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  9. Reading human relationships from their interaction with an interactive humanoid robot

    E-Print Network [OSTI]

    Kanda, Takayuki

    are different to traditional task-oriented robots, such as industrial robots, which perform certain tasks in limited applications. Interaction-oriented robots are designed to communicate with humans and to be ableReading human relationships from their interaction with an interactive humanoid robot Takayuki

  10. Nucleon - Nucleon Interactions at Short Distances

    E-Print Network [OSTI]

    Misak M Sargsian

    2014-03-04T23:59:59.000Z

    Despite the progress made in understanding the NN interactions at long distances based on effective field theories, the understanding of the dynamics of short range NN interactions remains as elusive as ever. One of the most fascinating properties of short range interaction is its repulsive nature which is responsible for the stability of strongly interacting matter. The relevant distances, $\\le 0.5$ fm, in this case are such that one expects the onset of quark-gluon degrees of freedom with interaction being dominated by QCD dynamics. We review the current status of the understanding of the QCD dynamics of NN interactions at short distances, highlight outstanding questions and outline the theoretical foundation of QCD description of hard NN processes. We present examples of how the study of the hard elastic NN interaction can reveal the symmetry structure of valence quark component of the nucleon wave function and how the onset of pQCD regime is correlated with the onset of color transparency phenomena in hard $pp$ scattering in the nuclear medium. The discussions show how the new experimental facilities can help to advance the knowledge about the QCD nature of nuclear forces at short distances.

  11. High-energy cosmic ray interactions

    SciTech Connect (OSTI)

    Engel, Ralph [Forschungszentrum Karlsruhe, P.O. Box 3640, 76021 Karlsruhe (Germany); Orellana, Mariana [Instituto Argentino de Radioastronomia (IAR), CCT La Plata (CONICET), C.C.5, 1894 Villa Elisa, Buenos Aires (Argentina); Facultad de Ciencias Astronomicas y Geofisicas, Universidad Nacional de La Plata, Paseo del Bosque, 1900 La Plata (Argentina); Reynoso, Matias M. [Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350, (7600) Mar del Plata (Argentina); Instituto de Investigaciones Fisicas de Mar del Plata, (UNMdP-CONICET) (Argentina); Vila, Gabriela S. [Instituto Argentino de Radioastronomia (IAR), CCT La Plata (CONICET), C.C.5, 1894 Villa Elisa, Buenos Aires (Argentina)

    2009-04-30T23:59:59.000Z

    Research into hadronic interactions and high-energy cosmic rays are closely related. On one hand--due to the indirect observation of cosmic rays through air showers--the understanding of hadronic multiparticle production is needed for deriving the flux and composition of cosmic rays at high energy. On the other hand the highest energy particles from the universe allow us to study the characteristics of hadronic interactions at energies far beyond the reach of terrestrial accelerators. This is the summary of three introductory lectures on our current understanding of hadronic interactions of cosmic rays.

  12. The Role of Interactions and Mergers

    E-Print Network [OSTI]

    F. Combes

    1998-04-13T23:59:59.000Z

    Galaxy evolution depends strongly on the environment. Dynamical interactions and subsequent evolution make galaxies more concentrated, with higher surface densities, and also trigger star-formation, which consumes the available cold gas. Already at z=0, a large variety of galaxy types are observed, with different evolution stages, from the unevolved gas rich dwarf irregulars, or low surface brightness galaxies, to early-type concentrated galaxies, with no remaining gas. The dynamical processes of galaxy interactions, including internal evolution, are reviewed and evidence is shown of much larger interaction/merging rate at high redshift.

  13. Proton radioactivity half lives with Skyrme interactions

    E-Print Network [OSTI]

    T. R. Routray; Abhishek Mishra; S. K. Tripathy; B. Behera; D. N. Basu

    2012-05-31T23:59:59.000Z

    The potential barrier impeding the spontaneous emission of protons in the proton radioactive nuclei is calculated as the sum of nuclear, Coulomb and centrifugal contributions. The nuclear part of the proton-nucleus interaction potential is obtained in the energy density formalism using Skyrme effective interaction that results into a simple algebraic expression. The half-lives of the proton emitters are calculated for the different Skyrme sets within the improved WKB framework. The results are found to be in reasonable agreement with the earlier results obtained for more complicated calculations involving finite range interactions.

  14. Interaction of Radiation with Matter Electrons

    E-Print Network [OSTI]

    Massey, Thomas N.

    . #12;Module 3 Current Issues in Radiation Biophysics · The biological effect of nuclear accidents of nuclear accidents. · Chernobyl · Three Mile Island · Dirty bombs · Japanese criticality accident #12;Charged Particle Track #12;Neutron Interactions · Energy loss by elastic scattering from

  15. Interactive physical agents for story gathering

    E-Print Network [OSTI]

    Reben, Alexander James

    2010-01-01T23:59:59.000Z

    Robots are typically thought of as autonomous devices which require little to no human interaction to complete their goals. In this study we investigated what would happen if the success of a robot was contingent upon its ...

  16. Interacting vacuum energy in the dark sector

    E-Print Network [OSTI]

    L. P. Chimento; S. Carneiro

    2014-04-02T23:59:59.000Z

    We analyse three cosmological scenarios with interaction in the dark sector, which are particular cases of a general expression for the energy flux from vacuum to matter. In the first case the interaction leads to a transition from an unstable de Sitter phase to a radiation dominated universe, avoiding in this way the initial singularity. In the second case the interaction gives rise to a slow-roll power-law inflation. Finally, the third scenario is a concordance model for the late-time universe, with the vacuum term decaying into cold dark matter. We identify the physics behind these forms of interaction and show that they can be described as particular types of the modified Chaplygin gas.

  17. Interaction of mesoscopic magnetic textures with superconductors

    E-Print Network [OSTI]

    Erdin, S.; Kayali, AF; Lyuksyutov, Igor F.; Pokrovsky, Valery L.

    2002-01-01T23:59:59.000Z

    Here we report a method to calculate the vortex and magnetization arrangement for a system of interacting superconductors and ferromagnets separated in space. The method is based on static London-Maxwell equations and the corresponding energy...

  18. Policies of different governments : persistence and interactions

    E-Print Network [OSTI]

    Ricka, Frantisek

    2008-01-01T23:59:59.000Z

    This dissertation consists of three chapters on persistence and interactions of policies of different governments in various settings. Chapter 1 studies government policy persistence when firms face capital installation ...

  19. Formal Semantics for Interacting UML subsystems

    E-Print Network [OSTI]

    Jurjens, Jan

    or attack need to exclude possible weaknesses. Problem: correctness in conflict with cost. Thorough methods, substates, internal activities. Here: simplified. Jan J¨urjens, TU Munich: Formal Semantics for Interacting

  20. Symmetries and Interaction coefficients of Kelvin waves

    E-Print Network [OSTI]

    Vladimir V. Lebedev; Victor S. L'vov

    2010-05-25T23:59:59.000Z

    We considered symmetry restriction on the interaction coefficients of Kelvin waves and demonstrated that linear in small wave vector asymptotic is not forbidden, as one can expect by naive reasoning.

  1. Statistical methods to infer biological interactions

    E-Print Network [OSTI]

    Tucker, George Jay

    2014-01-01T23:59:59.000Z

    Biological systems are extremely complex, and our ability to experimentally measure interactions in these systems is limited by inherent noise. Technological advances have allowed us to collect unprecedented amounts of raw ...

  2. Arduino Tool: For Interactive Artwork Installations

    E-Print Network [OSTI]

    Shaikh, Murtaza Hussain

    2012-01-01T23:59:59.000Z

    The emergence of the digital media and computational tools has widened the doors for creativity. The cutting edge in the digital arts and role of new technologies can be explored for the possible creativity. This gives an opportunity to involve arts with technologies to make creative works. The interactive artworks are often installed in the places where multiple people can interact with the installation, which allows the art to achieve its purpose by allowing the people to observe and involve with the installation. The level of engagement of the audience depends on the various factors such as aesthetic satisfaction, how the audience constructs meaning, pleasure and enjoyment. The method to evaluate these experiences is challenging as it depends on integration between the artificial life and real life by means of human computer interaction. This research investigates "How Adriano fits for creative and interactive artwork installations?" using an artwork installation in the campus of NTNU (Norwegian University...

  3. Single-strips for fast interactive rendering

    E-Print Network [OSTI]

    Diaz-Gutierrez, Pablo; Bhushan, Anusheel; Gopi, M; Pajarola, Renato

    2006-01-01T23:59:59.000Z

    rendering. Most interactive render- ing packages supportIn order to correctly render such strips, non alter- natingRight: Evolution of the render front. As the interac- tive

  4. Interacting holographic generalized Chaplygin gas model

    E-Print Network [OSTI]

    M. R. Setare

    2007-08-01T23:59:59.000Z

    In this paper we consider a correspondence between the holographic dark energy density and interacting generalized Chaplygin gas energy density in FRW universe. Then we reconstruct the potential of the scalar field which describe the generalized Chaplygin cosmology.

  5. Interactive eshopping experience: an empirical investigation

    E-Print Network [OSTI]

    Mahfouz, Ahmed Yousry Mohamed

    2005-02-17T23:59:59.000Z

    Utilizing an experimental design, the study investigates the effects of eshopping behavior (experiential, utilitarian, or mixed) and interactivity level (low or high) on the consequences of eshopping (site attitude and future purchase intentions...

  6. The Whimsichord: a Wearable Interactive Sonic Installation

    E-Print Network [OSTI]

    Bryan-Kinns, Nick

    be twanged to produce sound, and each participant will become a human string instrument. RELATED WORK [1] prototyped a system using a retractable string to interact with an embedded wearable wrist device

  7. Long range interactions in nanoscale science

    E-Print Network [OSTI]

    Rajter, Richard F.

    Our understanding of the “long range” electrodynamic, electrostatic, and polar interactions that dominate the organization of small objects at separations beyond an interatomic bond length is reviewed. From this basic-forces ...

  8. Hybrid Solutions to the Feature Interaction Problem

    E-Print Network [OSTI]

    Calder, M.

    Calder,M. Kolberg,M. Magill,E. Marples,D. Reiff-Marganiec,S. Feature Interactions in Telecommunications and Software Systems VII pp 295-312 IOS Press

  9. Operating System Support for Mobile Interactive Applications

    E-Print Network [OSTI]

    . Such applications demand good interactive response. However, their environments are resource-poor and turbulent, predictive resource management, history- based demand prediction, augmented reality, machine learning #12 -- augmented reality -- has enormous potential in fields ranging from entertainment to aircraft maintenance

  10. Identifying chromatin interactions at high spatial resolution

    E-Print Network [OSTI]

    Reeder, Christopher Campbell

    2014-01-01T23:59:59.000Z

    This thesis presents two computational approaches for identifying chromatin interactions at high spatial resolution from ChIA-PET data. We introduce SPROUT which is a hierarchical probabilistic model that discovers high ...

  11. Simulated liquid argon interactions with neutrons

    E-Print Network [OSTI]

    Harrington, Kathleen M

    2012-01-01T23:59:59.000Z

    The GEANT4 physics simulation program is known to have errors in how hadronic interactions are implemented. This has the potential to cause errors in the Monte Carlos used to determine the expected neutron backgrounds in ...

  12. Semitransparency in interaction-free measurements

    E-Print Network [OSTI]

    Sebastian Thomas; Christoph Kohstall; Pieter Kruit; Peter Hommelhoff

    2014-08-29T23:59:59.000Z

    We discuss the effect of semitransparency in a quantum-Zeno-like interaction-free measurement setup, a quantum-physics based approach that might significantly reduce sample damage in imaging and microscopy. With an emphasis on applications in electron microscopy, we simulate the behavior of probe particles in an interaction-free measurement setup with semitransparent samples, and we show that the transparency of a sample can be measured in such a setup. However, such a measurement is not possible without losing (i.e., absorbing or scattering) probe particles in general, which causes sample damage. We show how the amount of lost particles can be minimized by adjusting the number of round trips through the setup, and we explicitly calculate the amount of lost particles in measurements which either aim at distinguishing two transparencies or at measuring an unknown transparency precisely. We also discuss the effect of the sample causing phase shifts in interaction-free measurements. Comparing the resulting loss of probe particles with a classical measurement of transparency, we find that interaction-free measurements only provide a benefit in two cases: first, if two semitransparent samples with a high contrast are to be distinguished, interaction-free measurements lose less particles than classical measurements by a factor that increases with the contrast. This implies that interaction-free measurements with zero loss are possible if one of the samples is perfectly transparent. A second case where interaction-free measurements outperform classical measurements is if three conditions are met: the particle source exhibits Poissonian number statistics, the number of lost particles cannot be measured, and the transparency is larger than approximately 1/2. In all other cases, interaction-free measurements lose as many probe particles as classical measurements or more.

  13. A reduced Blade-Vortex Interaction rotor

    E-Print Network [OSTI]

    Mani, Somnath

    2012-06-07T23:59:59.000Z

    A REDUCED BLADE - VORTEX INTERACTION ROTOR A Thesis by SOMNATH MANI . Submitted to the Offic of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1996 Major... Subject: Aerospace Engineering A REDUCED BLADE - VORTEX INTERACTION ROTOR A Thesis by SOMNATH MANI Submitted to Texas A@M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content...

  14. Neutron Interactions: Q-Equation, Elastic Scattering

    E-Print Network [OSTI]

    unknown authors

    Since a neutron has no charge it can easily enter into a nucleus and cause a reaction. Neutrons interact primarily with the nucleus of an atom, except in the special case of magnetic scattering where the interaction involves the neutron spin and the magnetic moment of the atom. Because magnetic scattering is of no interest in this class, we can neglect the interaction between neutrons and electrons and think of atoms and nuclei interchangeably. Neutron reactions can take place at any energy, so one has to pay particular attention to the energy variation of the interaction cross section. In a nuclear reactor neutrons can have energies ranging from 10-3 ev (1 mev) to 10 7 ev (10 Mev). This means our study of neutron interactions, in principle, will have to cover an energy range of 10 ten orders of magnitude. In practice we will limit ourselves to two energy ranges, the slowing down region (ev to Kev) and the thermal region (around 0.025 ev). For a given energy region – thermal, epithermal, resonance, fast – not all the possible reactions are equally important. Which reaction is important depends on the target nucleus and the neutron energy. Generally speaking the important types of interactions, in the order of increasing complexity from the standpoint of theoretical

  15. DIP: The Database of Interacting Proteins

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

    The DIP Database catalogs experimentally determined interactions between proteins. It combines information from a variety of sources to create a single, consistent set of protein-protein interactions. By interaction, the DIP Database creators mean that two amino acid chains were experimentally identified to bind to each other. The database lists such pairs to aid those studying a particular protein-protein interaction but also those investigating entire regulatory and signaling pathways as well as those studying the organisation and complexity of the protein interaction network at the cellular level. The data stored within the DIP database were curated, both, manually by expert curators and also automatically using computational approaches that utilize the knowledge about the protein-protein interaction networks extracted from the most reliable, core subset of the DIP data. It is a relational database that can be searched by protein, sequence, motif, article information, and pathBLAST. The website also serves as an access point to a number of projects related to DIP, such as LiveDIP, The Database of Ligand-Receptor Partners (DLRP) and JDIP. Users have free and open access to DIP after login. [Taken from the DIP Guide and the DIP website] (Specialized Interface) (Registration Required)

  16. The Kid's Times: Volume II, Issue 8 Sperm Whale

    E-Print Network [OSTI]

    are named for the spermaceti oil (wax) that they produce in the spermaceti organs located in their head, and over continental slopes. While they are usu- ally found offshore, they can be found near shore where as far north and south as the edges of the polar regions to feed. Fe- males and males of all ages can

  17. Blue whale response to underwater noise from commercial ships

    E-Print Network [OSTI]

    McKenna, Megan Frances

    2011-01-01T23:59:59.000Z

    Accessing Noise Impact Acoustic pollution from ship noise isConcerns regarding acoustic noise pollution from ships ariseNoise pollution level metric for acoustic data collected at

  18. Early Evolution of Whales A Century of Research in Egypt

    E-Print Network [OSTI]

    Gingerich, Philip D.

    -Sagha escarpment (site 3), Birket Qarun escarpment (site 4), Wadi Hitan (site 5), and Khashm el-Raqaba in Wadi

  19. Blue whale response to underwater noise from commercial ships

    E-Print Network [OSTI]

    McKenna, Megan Frances

    2011-01-01T23:59:59.000Z

    Rasmussen, K. , Urbán, J. , Balcomb, K.C. , de Guevara,G.H. , Cubbage, J.C. , Balcomb, K.C. , Ewald, E. , Kruse,Rasmussen, K. , Urban, J. , Balcomb, K. , de Guevara, P. ,

  20. INTRODUCTION Beaked whales (family Ziphiidae) are among the least

    E-Print Network [OSTI]

    .J. READ+, E. VOS*, R.W. BAIRD#, K. BALCOMB**, J. BARLOW++, J. CALDWELL##, T. CRANFORD^, L. CRUM^^, A. D

  1. Social Context of Gray Whale Eschrichtius robustus Sound Activity

    E-Print Network [OSTI]

    Charles, Sarah

    2012-07-16T23:59:59.000Z

    Carlos. Without their resources and hard work, this study would not have been possible. Francisco (Paco) Ollervides and SFS created this tremendous opportunity by generously providing boats and fuel, acoustic equipment, student assistants, and room... and age class (Sousa-Lima et al., 2002). Adult vocalizations had longer duration and narrower range of fundamental frequencies. Females had greater values of mean, maximum and minimum fundamental frequencies, interval duration (between notes...

  2. Home, Habits, and Energy: Examining Domestic Interactions and Energy Consumption

    E-Print Network [OSTI]

    Paulos, Eric

    , habitual, and irrational. Implications for the design of energy-conserving interactions with technology investigate the relationships among "normal" domestic interactions with technology, energy consumptionHome, Habits, and Energy: Examining Domestic Interactions and Energy Consumption James Pierce1

  3. Proton-neutron interacting boson model under random two-body interactions

    SciTech Connect (OSTI)

    Yoshida, N.; Zhao, Y. M.; Arima, A. [Faculty of Informatics, Kansai University, Takatsuki 569-1095 (Japan); Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Science Museum, Japan Science Foundation, 2-1 Kitanomaru-koen, Chiyoda ku, Tokyo 102-0091 (Japan)

    2009-12-15T23:59:59.000Z

    The low-lying states of sd-boson systems in the presence of random two-body interactions are studied in the proton-neutron interacting boson model (IBM-2). The predominance of spin-zero ground states is confirmed, and a very prominent maximum F-spin dominance in ground states is found. It turns out that the requirement of random interactions with F-spin conservation intensifies the above predominance. Collective motion in the low-lying states is discussed.

  4. Interactions of nickel/zirconia solid oxide fuel cell anodes...

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

    Interactions of nickelzirconia solid oxide fuel cell anodes with coal gas containing arsenic. Interactions of nickelzirconia solid oxide fuel cell anodes with coal gas containing...

  5. Carbon Mineralizability Determines Interactive Effects onMineralizatio...

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

    Determines Interactive Effects onMineralization of Pyrogenic Organic Matter and Soil Organic Carbon. Carbon Mineralizability Determines Interactive Effects onMineralization...

  6. Lewis Acid-Base Interactions between Polysulfides and Metal Organic...

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

    Lewis Acid-Base Interactions between Polysulfides and Metal Organic Framework in Lithium Sulfur Batteries. Lewis Acid-Base Interactions between Polysulfides and Metal Organic...

  7. Attractive Noncovalent Interactions inthe Mechanism ofGrubbsSecond...

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

    Attractive Noncovalent Interactions inthe Mechanism of GrubbsSecond-Generation Ru Catalysts forOlefin Metathesis. Attractive Noncovalent Interactions inthe Mechanism of...

  8. Experiment-Based Model for the Chemical Interactions between...

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

    1) Determine what chemical interactions occur between relevant minerals and water-CO 2 fluids 2) Understand how the chemical interactions affect transition to and performance of a...

  9. Wind Turbine Interactions with Birds, Bats, and their Habitats...

    Energy Savers [EERE]

    Wind Turbine Interactions with Birds, Bats, and their Habitats: A Summary of Research Results and Priority Questions Wind Turbine Interactions with Birds, Bats, and their Habitats:...

  10. Molecular Interactions of Plutonium(VI) with SyntheticManganese...

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

    Interactions of Plutonium(VI) with Synthetic Manganese-Substituted Goethite. Molecular Interactions of Plutonium(VI) with Synthetic Manganese-Substituted Goethite. Abstract:...

  11. Fractionation of Oxygen Isotopes in Phosphate during its Interactions...

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

    Fractionation of Oxygen Isotopes in Phosphate during its Interactions with Iron Oxides. Fractionation of Oxygen Isotopes in Phosphate during its Interactions with Iron Oxides....

  12. Exploring the interaction between lithium ion and defective graphene...

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

    Exploring the interaction between lithium ion and defective graphene surface using dispersion corrected DFT studies. Exploring the interaction between lithium ion and defective...

  13. Method and apparatus for modeling interactions

    DOE Patents [OSTI]

    Xavier, Patrick G. (Albuquerque, NM)

    2000-08-08T23:59:59.000Z

    A method and apparatus for modeling interactions between bodies. The method comprises representing two bodies undergoing translations and rotations by two hierarchical swept volume representations. Interactions such as nearest approach and collision can be modeled based on the swept body representations. The present invention can serve as a practical tool in motion planning, CAD systems, simulation systems, safety analysis, and applications that require modeling time-based interactions. A body can be represented in the present invention by a union of convex polygons and convex polyhedra. As used generally herein, polyhedron includes polygon, and polyhedra includes polygons. The body undergoing translation can be represented by a swept body representation, where the swept body representation comprises a hierarchical bounding volume representation whose leaves each contain a representation of the region swept by a section of the body during the translation, and where the union of the regions is a superset of the region swept by the surface of the body during translation. Interactions between two bodies thus represented can be modeled by modeling interactions between the convex hulls of the finite sets of discrete points in the swept body representations.

  14. Intrinsic Spin-Orbit Interaction in Graphene

    E-Print Network [OSTI]

    B. S. Kandemir

    2012-05-03T23:59:59.000Z

    In graphene, we report the first theoretical demonstration of how the intrinsic spin orbit interaction can be deduced from the theory and how it can be controlled by tuning a uniform magnetic field, and/or by changing the strength of a long range Coulomb like impurity (adatom), as well as gap parameter. In the impurity context, we find that intrinsic spin-orbit interaction energy may be enhanced by increasing the strength of magnetic field and/or by decreasing the band gap mass term. Additionally, it may be strongly enhanced by increasing the impurity strength. Furthermore, from the proposal of Kane and Mele [Phys. Rev. Lett. 95, 226801 (2005)], it was discussed that the pristine graphene has a quantized spin Hall effect regime where the Rashba type spin orbit interaction term is smaller than that of intrinsic one. Our analysis suggest the nonexistence of such a regime in the ground state of flat graphene.

  15. Axial interaction free-electron laser

    DOE Patents [OSTI]

    Carlsten, B.E.

    1997-09-02T23:59:59.000Z

    Electron orbits from a helical axial wiggler in an axial guide field are absolutely unstable as power is extracted from the particles. For off-axis beams an axial FEL mechanism exists when the axial electric field in a TM mode is wiggled to interact with the axial velocity of the electrons that form the beam. The interaction strength is comparable to that for helical FELs and is insensitive to beam orbit errors. The orbits for this mechanism are extremely stable in the absence of space charge and lead to high extraction efficiencies without particle phasing incoherence or interception. This interaction mechanism is suitable for use with intense annular electron beams for high power generation at microwave frequencies. 5 figs.

  16. Techniques for interactive 3-D scientific visualization

    SciTech Connect (OSTI)

    Glinert, E.P. (Rensselaer Polytechnic Inst., Troy, NY (USA). Dept. of Computer Science); Blattner, M.M. (Anderson (M.D.) Hospital and Tumor Inst., Houston, TX (USA). Dept. of Biomathematics California Univ., Davis, CA (USA). Dept. of Applied Science Lawrence Livermore National Lab., CA (USA)); Becker, B.G. (California Univ., Davis, CA (USA). Dept. of Applied Science Lawrence Livermore National La

    1990-09-24T23:59:59.000Z

    Interest in interactive 3-D graphics has exploded of late, fueled by (a) the allure of using scientific visualization to go where no-one has gone before'' and (b) by the development of new input devices which overcome some of the limitations imposed in the past by technology, yet which may be ill-suited to the kinds of interaction required by researchers active in scientific visualization. To resolve this tension, we propose a flat 5-D'' environment in which 2-D graphics are augmented by exploiting multiple human sensory modalities using cheap, conventional hardware readily available with personal computers and workstations. We discuss how interactions basic to 3-D scientific visualization, like searching a solution space and comparing two such spaces, are effectively carried out in our environment. Finally, we describe 3DMOVE, an experimental microworld we have implemented to test out some of our ideas. 40 refs., 4 figs.

  17. Interaction between stainless steel and plutonium metal

    SciTech Connect (OSTI)

    Dunwoody, John T [Los Alamos National Laboratory; Mason, Richard E [Los Alamos National Laboratory; Freibert, Franz J [Los Alamos National Laboratory; Willson, Stephen P [Los Alamos National Laboratory; Veirs, Douglas K [Los Alamos National Laboratory; Worl, Laura A [Los Alamos National Laboratory; Archuleta, Alonso [Los Alamos National Laboratory; Conger, Donald J [Los Alamos National Laboratory

    2010-01-01T23:59:59.000Z

    Long-term storage of excess plutonium is of great concern in the U.S. as well as abroad. The current accepted configuration involves intimate contact between the stored material and an iron-bearing container such as stainless steel. While many safety scenario studies have been conducted and used in the acceptance of stainless steel containers, little information is available on the physical interaction at elevated temperatures between certain forms of stored material and the container itself. The bulk of the safety studies has focused on the ability of a package to keep the primary stainless steel containment below the plutonium-iron eutectic temperature of approximately 410 C. However, the interactions of plutonium metal with stainless steel have been of continuing interest. This paper reports on a scoping study investigating the interaction between stainless steel and plutonium metal in a pseudo diffusion couple at temperatures above the eutectic melt-point.

  18. Communication networks and loser effects interact to influence the outcome of aggressive interactions in

    E-Print Network [OSTI]

    Moore, Paul A.

    Communication networks and loser effects interact to influence the outcome of aggressive.P. Scott Center for Neuroscience, Mind, & Behaviour, Department of Biological Sciences, Bowling Green State University, Bowling Green, OH 43403, USA) (Accepted: 25 July 2008) Summary Dyadic interactions occur

  19. Configuration Interactions Constrained by Energy Density Functionals

    E-Print Network [OSTI]

    B. Alex Brown; Angelo Signoracci; Morten Hjorth-Jensen

    2010-09-24T23:59:59.000Z

    A new method for constructing a Hamiltonian for configuration interaction calculations with constraints to energies of spherical configurations obtained with energy-density-functional (EDF) methods is presented. This results in a unified model that reproduced the EDF binding-energy in the limit of single-Slater determinants, but can also be used for obtaining energy spectra and correlation energies with renormalized nucleon-nucleon interactions. The three-body and/or density-dependent terms that are necessary for good nuclear saturation properties are contained in the EDF. Applications to binding energies and spectra of nuclei in the region above 208Pb are given.

  20. A Quantum Computer Architecture using Nonlocal Interactions

    E-Print Network [OSTI]

    Gavin K. Brennen; Daegene Song; Carl J. Williams

    2003-04-23T23:59:59.000Z

    Several authors have described the basic requirements essential to build a scalable quantum computer. Because many physical implementation schemes for quantum computing rely on nearest neighbor interactions, there is a hidden quantum communication overhead to connect distant nodes of the computer. In this paper we propose a physical solution to this problem which, together with the key building blocks, provides a pathway to a scalable quantum architecture using nonlocal interactions. Our solution involves the concept of a quantum bus that acts as a refreshable entanglement resource to connect distant memory nodes providing an architectural concept for quantum computers analogous to the von Neumann architecture for classical computers.

  1. A Study of Multiplicities in Hadronic Interactions

    SciTech Connect (OSTI)

    Estrada Tristan, Nora Patricia; /San Luis Potosi U.

    2006-02-01T23:59:59.000Z

    Using data from the SELEX (Fermilab E781) experiment obtained with a minimum-bias trigger, we study multiplicity and angular distributions of secondary particles produced in interactions in the experimental targets. We observe interactions of {Sigma}{sup -}, proton, {pi}{sup -}, and {pi}{sup +}, at beam momenta between 250 GeV/c and 650 GeV/c, in copper, polyethylene, graphite, and beryllium targets. We show that the multiplicity and angular distributions for meson and baryon beams at the same momentum are identical. We also show that the mean multiplicity increases with beam momentum, and presents only small variations with the target material.

  2. Interchanging Interactive 3-d Graphics for Astronomy

    E-Print Network [OSTI]

    C. J. Fluke; D. G. Barnes; N. T. Jones

    2008-12-09T23:59:59.000Z

    We demonstrate how interactive, three-dimensional (3-d) scientific visualizations can be efficiently interchanged between a variety of mediums. Through the use of an appropriate interchange format, and a unified interaction interface, we minimize the effort to produce visualizations appropriate for undertaking knowledge discovery at the astronomer's desktop, as part of conference presentations, in digital publications or as Web content. We use examples from cosmological visualization to address some of the issues of interchange, and to describe our approach to adapting S2PLOT desktop visualizations to the Web. Supporting demonstrations are available at http://astronomy.swin.edu.au/s2plot/interchange/

  3. Homogeneous Cooling with Repulsive and Attractive Long-range Interactions

    E-Print Network [OSTI]

    Luding, Stefan

    and for not too strong interaction potential enrgy. Keywords: 1/r potentials, Molecular Dynamics, granular gases

  4. The XY model with Dzyaloshinskii-Moriya interaction

    SciTech Connect (OSTI)

    D'Souza, Ransell, E-mail: ransell.d@gmail.com [Department of Physics, University of Pune, Ganeshkhind Road, Pune - 411 007 (India)

    2014-04-24T23:59:59.000Z

    One can get spin-orbit interaction of the magnetic ions, besides the strong Heisenberg interaction, known as the Dzyaloshinskii-Moriya (DM) interaction. We show the effect of the DM interaction on the excitation spectrum. We also show here the magnetic Susceptibility and ferroelectric polarization of the system in a longitudinal magnetic field.

  5. CS 4317 Human-Computer Interaction Course Number: CS4317

    E-Print Network [OSTI]

    Ward, Karen

    interaction. Theory of human-computer interaction. Development methods for interfaces such as user1 CS 4317 Human-Computer Interaction Course Number: CS4317 Course Title: Human-Computer Interaction Course Instructors Nigel Ward Course Description: CS4317: Models and methods of human-computer

  6. Adaptive Interaction through WWW Fuyau Lin and Ron Danielson

    E-Print Network [OSTI]

    Danielson, Ronald

    Adaptive Interaction and Instruction using the World-Wide Web. We include a brief survey of human-computer of this paper discusses human-computer interaction in the context of the WWW, factors relevant to delivering on the Web. 2. HUMAN-COMPUTER INTERACTION AND THE WWW #12;Mechanisms for Human-Computer Interaction (HCI

  7. Interactive Termination Proofs using Termination Cores

    E-Print Network [OSTI]

    Manolios, Panagiotis "Pete"

    Interactive Termination Proofs using Termination Cores Panagiotis Manolios and Daron Vroon College@ccs.neu.edu, daron.vroon@gmail.com Abstract. Recent advances in termination analysis have yielded new methods and determining how to proceed. In this paper, we address the issue of building termination analysis engines

  8. DYNAMIC INTERACTION FACTORS FOR FLOATING PILE GROUPS

    E-Print Network [OSTI]

    Entekhabi, Dara

    -numerical formulation for two ideal- ized soil profiles (a homogeneous half-space and a half-space with modulus pro interaction factors for static deformation analysis of pile groups. INTRODUCTION Under static working loads) the sharing among individual piles of the load applied at the pile cap is generally uneven, with the corner

  9. OCEAN-ATMOSPHERE INTERACTION AND TROPICAL CLIMATE

    E-Print Network [OSTI]

    Xie, Shang-Ping

    radiation is the ultimate source of energy for motions in the atmosphere and ocean. Most absorption of solar radiation takes place on the Earth surface, the majority of which is occupied by oceans. Thus oceanic modulate surface radiative flux. Thus, the ocean and atmosphere are a coupled system and their interaction

  10. 129A Lecture Notes Weak Interactions I

    E-Print Network [OSTI]

    Murayama, Hitoshi

    129A Lecture Notes Weak Interactions I 1 Nuclear -decay The nuclear -decay caused a great deal of nuclear fission, studied the spectrum and claimed that it was discrete. They argued that the spectrum may have hit upon a desperate remedy to save the "exchange theorem" of statistics and the law

  11. Quenching Processes in Flame-Vortex Interactions

    E-Print Network [OSTI]

    Zingale, Michael

    for Astrophysical Thermonuclear Flashes 1 , Chicago, IL 60637 y Department of Astronomy and Astrophysics, University-vortex interactions in order to understand quenching of thermonuclear ames. The key question is|can a ther- monuclear. If a ame encounters a 1) The Center for Astrophysical Thermonuclear Flashes is supported by the Department

  12. Gloss: interactive navigation of lexical space

    E-Print Network [OSTI]

    Purchase, H.C.

    Purchase,H.C. Kennish,J.M. Proceedings of the Asia-Pacific conference on Human Computer Interaction, Yong, L.K., Herman, L., Leung, Y.K. and Moyes, J. (eds), Information Technology Institute, National Computer Board of Singapore

  13. Investigation of electrons interaction in a superconductor

    E-Print Network [OSTI]

    Iogann Tolbatov

    2009-10-21T23:59:59.000Z

    Investigating the interaction of electrons in a superconductor by means of a method of solitary waves of Korteweg - de Vries, we refute the claim of absence of "Cooper pairs" in a superconductor. We also indicate that the nondissipative transfer of energy in the superconductor is possible only with the help of a pair of electrons.

  14. Classical gravitational spin-spin interaction

    E-Print Network [OSTI]

    W. B. Bonnor

    2002-01-30T23:59:59.000Z

    I obtain an exact, axially symmetric, stationary solution of Einstein's equations for two massless spinning particles. The term representing the spin-spin interaction agrees with recently published approximate work. The spin-spin force appears to be proportional to the inverse fourth power of the coordinate distance between the particles.

  15. Interactive physically-based cloud simulation

    E-Print Network [OSTI]

    Overby, Derek Robert

    2002-01-01T23:59:59.000Z

    of digital artistic media. Previous methods for modeling the growth of clouds do not account for the fluid interactions that are responsible for cloud formation in the physical atmosphere. We propose a model for simulating cloud formation based on a basic...

  16. Interaction Region Issues at the NLC

    SciTech Connect (OSTI)

    Markiewicz, Thomas W.; Maruyama, T.; /SLAC

    2007-09-26T23:59:59.000Z

    Two detector concepts are being investigated for the Next Linear Collider. This paper discusses the current design of the interaction region for one of them, based on a 6 Tesla solenoid and silicon based tracking. Topics include masking layout, backgrounds and the suppression of final quadrupole jitter. All calculations are based on the 1 TeV design parameters.

  17. Species Interactions Reverse Grassland Responses to

    E-Print Network [OSTI]

    Wilmers, Chris

    droughts. Eco- logical responses to climate change in regions with Mediterranean climate regimes maySpecies Interactions Reverse Grassland Responses to Changing Climate K. B. Suttle,1 * Meredith A. Thomsen,2 Mary E. Power1 Predictions of ecological response to climate change are based largely on direct

  18. Validation and Interactivity of Web API Documentation

    E-Print Network [OSTI]

    Jeffrey, Alan

    of APIs in the directory and shows that REST1 [3] is in the majority and is growing faster than any other validation. 1ProgrammableWeb API styles are self-reported by the API owners, and APIs reported as RESTful mayValidation and Interactivity of Web API Documentation Peter J. Danielsen and Alan Jeffrey Bell Labs

  19. Nonstandard neutrino interactions and transition magnetic moments

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

    Healey, Kristopher J.; Petrov, Alexey A.; Zhuridov, Dmitry

    2013-06-01T23:59:59.000Z

    We constrain generic nonstandard neutrino interactions with existing experimental data on neutrino transition magnetic moments and derive strong bounds on tensorial couplings of neutrinos to charged fermions. We also discuss how some of these tensorial couplings can be constrained by other experiments, e.g., on neutrino-electron and neutrino-nucleus scattering.

  20. Module name: Interactive computer graphics Abbreviation: ICG

    E-Print Network [OSTI]

    Ahlers, Volker - Fakultät IV

    Module name: Interactive computer graphics Abbreviation: ICG Study semester: 2 nd semester (SS majoring in "Graphics and Visualization" Teaching methods/SWS: 2 SWS lecture with approx. 15 students 2 SWS: Computer Vision, cryptography and algorithms, computer graphics lecture in Bachelor study program Learning

  1. Operating System Support for Mobile Interactive Applications

    E-Print Network [OSTI]

    . Such applications demand good interactive response. However, their environments are resource­poor and turbulent, predictive resource management, history­ based demand prediction, augmented reality, machine learning #12 --- augmented reality --- has enormous potential in fields ranging from entertainment to aircraft maintenance

  2. Three Interactions between Context and Epistemic Locutions

    E-Print Network [OSTI]

    Thomason, Richmond H.

    Three Interactions between Context and Epistemic Locutions Richmond H. Thomason Philosophy (1) the effects of temporal perspective on knowledge of the future, (2) the effects of perceived risk;1. Introduction From the start, philosophy has been full of arguments that start off plausibly enough

  3. Interaction Sheaves on Continuous Hans Keiding

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Interaction Sheaves on Continuous Domains J. Abdou Hans Keiding Revised version March 2009 of game forms obtained in the finite case in Abdou and Keiding (2003). Keywords: Nash equilibrium, strong'H^opital 75647 Paris Cedex 13; email: abdou@univ-paris1.fr University of Copenhagen, Department of Economics

  4. Pseudopotentials of the particles interactions in complex plasmas

    SciTech Connect (OSTI)

    Ramazanov, T. S.; Moldabekov, Zh. A.; Dzhumagulova, K. N.; Muratov, M. M. [Al Farabi Kazakh National University, IETP, Tole bi 96a, Almaty 050012 (Kazakhstan)

    2011-10-15T23:59:59.000Z

    This article discusses the effective interaction potentials in a complex dusty plasma. The interaction of electrons with atoms and the interaction between dusty particles are studied by the method of the dielectric response function. In the effective interaction, potential between electron and atom the quantum effects of diffraction were taken into account. On the curve of the interaction potential between dust particles under certain conditions the oscillations can be observed.

  5. Materials of interaction : responsive materials in the design of transformable interactive surfaces

    E-Print Network [OSTI]

    Coelho, Marcelo

    2008-01-01T23:59:59.000Z

    Materials that embody computational properties are reshaping the ways in which we design, interact and communicate. This thesis looks at the topic of form transformation and how to bring the programmability and versatility ...

  6. Interaction Junk: User Interaction-Based Evaluation of Visual Analytic Systems

    SciTech Connect (OSTI)

    Endert, Alexander; North, Chris

    2012-10-14T23:59:59.000Z

    With the growing need for visualization to aid users in understanding large, complex datasets, the ability for users to interact and explore these datasets is critical. As visual analytic systems have advanced to leverage powerful computational models and data analytics capabilities, the modes by which users engage and interact with the information are limited. Often, users are taxed with directly manipulating parameters of these models through traditional GUIs (e.g., using sliders to directly manipulate the value of a parameter). However, the purpose of user interaction in visual analytic systems is to enable visual data exploration – where users can focus on their task, as opposed to the tool or system. As a result, users can engage freely in data exploration and decision-making, for the purpose of gaining insight. In this position paper, we discuss how evaluating visual analytic systems can be approached through user interaction analysis, where the goal is to minimize the cognitive translation between the visual metaphor and the mode of interaction (i.e., reducing the “Interactionjunk”). We motivate this concept through a discussion of traditional GUIs used in visual analytics for direct manipulation of model parameters, and the importance of designing interactions the support visual data exploration.

  7. Interaction between Injection Points during Hydraulic Fracturing

    E-Print Network [OSTI]

    Hals, Kjetil M D

    2012-01-01T23:59:59.000Z

    We present a model of the hydraulic fracturing of heterogeneous poroelastic media. The formalism is an effective continuum model that captures the coupled dynamics of the fluid pressure and the fractured rock matrix and models both the tensile and shear failure of the rock. As an application of the formalism, we study the geomechanical stress interaction between two injection points during hydraulic fracturing (hydrofracking) and how this interaction influences the fracturing process. For injection points that are separated by less than a critical correlation length, we find that the fracturing process around each point is strongly correlated with the position of the neighboring point. The magnitude of the correlation length depends on the degree of heterogeneity of the rock and is on the order of 30-45 m for rocks with low permeabilities. In the strongly correlated regime, we predict a novel effective fracture-force that attracts the fractures toward the neighboring injection point.

  8. Interactions Between Evanescent Photons and Environment

    E-Print Network [OSTI]

    Moses Fayngold

    2014-09-02T23:59:59.000Z

    The evanescent waves named as EW1, EW2, EW3 are described in 3 respective experimental setups: 1) total internal reflection; 2) scattering on an inhomogeneous planar target; and 3) propagation along a waveguide. Some interactions are considered between EW2 and the environment. The latter may include a beam of probing particles and/or the screen on which the EW2 are formed. Some new properties of EW are described, such as complex energy eigenvalues in case of a movable screen, and evanescence exchange between the interacting objects. This reveals the connection between evanescent states and the Gamow states of the studied system. The 4-momentum exchange between EW2 and the probe is highly selective and may collapse the superposition of studied EW2- eigenstates to a single EW-eigenstate of the probing particle. Possible imprints of EW2 in the far field are briefly discussed and a simple experiment is suggested for their observation. .

  9. Fluctuation induced interactions between domains in membranes

    E-Print Network [OSTI]

    D. S. Dean; M. Manghi

    2006-09-06T23:59:59.000Z

    We study a model lipid bilayer composed of a mixture of two incompatible lipid types which have a natural tendency to segregate in the absence of membrane fluctuations. The membrane is mechanically characterized by a local bending rigidity $\\kappa(\\phi)$ which varies with the average local lipid composition $\\phi$. We show, in the case where $\\kappa$ varies weakly with $\\phi$, that the effective interaction between lipids of the same type can either be everywhere attractive or can have a repulsive component at intermediate distances greater than the typical lipid size. When this interaction has a repulsive component, it can prevent macro-phase separation and lead to separation in mesophases with a finite domain size. This effect could be relevant to certain experimental and numerical observations of mesoscopic domains in such systems.

  10. Atomistic modeling of dislocation-interface interactions

    SciTech Connect (OSTI)

    Wang, Jian [Los Alamos National Laboratory; Valone, Steven M [Los Alamos National Laboratory; Beyerlein, Irene J [Los Alamos National Laboratory; Misra, Amit [Los Alamos National Laboratory; Germann, T. C. [Los Alamos National Laboratory

    2011-01-31T23:59:59.000Z

    Using atomic scale models and interface defect theory, we first classify interface structures into a few types with respect to geometrical factors, then study the interfacial shear response and further simulate the dislocation-interface interactions using molecular dynamics. The results show that the atomic scale structural characteristics of both heterophases and homophases interfaces play a crucial role in (i) their mechanical responses and (ii) the ability of incoming lattice dislocations to transmit across them.

  11. Foundation of Hydrodynamics of Strongly Interacting Systems

    E-Print Network [OSTI]

    Cheuk-Yin Wong

    2014-04-03T23:59:59.000Z

    Hydrodynamics and quantum mechanics have many elements in common, as the density field and velocity fields are common variables that can be constructed in both descriptions. Starting with the Schroedinger equation and the Klein-Gordon for a single particle in hydrodynamical form, we examine the basic assumptions under which a quantum system of particles interacting through their mean fields can be described by hydrodynamics.

  12. On Principle of Universality of Gravitational Interactions

    E-Print Network [OSTI]

    I. B. Pestov

    2001-12-19T23:59:59.000Z

    In this work, the experiment is discussed on the verification of the principle of universality of gravitational interactions and some related problems of gravity theory and physics of elementary particles. The meaning of this proposal lies in the fact that the self-consistency of General Relativity, as it turns out, presuppose the existence of the nongravitating form of energy. Theory predicts that electrons are particles that transfer the nongravitating form of energy.

  13. Electromagnetic interactions at RHIC and LHC

    E-Print Network [OSTI]

    M. C. Guclu

    2008-11-15T23:59:59.000Z

    At LHC energies the Lorentz factor will be 3400 for the Pb + Pb collisions and the electromagnetic interactions will play important roles. Cross sections for the electromagnetic particle productions are very large and can not be ignored for the lifetimes of the beams and background. In this article, we are going to study some of the electromagnetic processes at RHIC and LHC and show the cross section calculations of the electron-positron pair production with the giant dipole resonance of the ions.

  14. Thermodynamics of Interacting Fermions in Atomic Traps

    SciTech Connect (OSTI)

    Chen Qijin; Stajic, Jelena; Levin, K. [James Franck Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637 (United States)

    2005-12-31T23:59:59.000Z

    We calculate the entropy in a trapped, resonantly interacting Fermi gas as a function of temperature for a wide range of magnetic fields between the BCS and Bose-Einstein condensation end points. This provides a basis for the important technique of adiabatic sweep thermometry and serves to characterize quantitatively the evolution and nature of the excitations of the gas. The results are then used to calibrate the temperature in several ground breaking experiments on {sup 6}Li and {sup 40}K.

  15. Social Interactions, Ethnicity and Fertility in Kenya

    E-Print Network [OSTI]

    Iyer, Sriya; Weeks, Melvyn

    Social Interactions, Ethnicity and Fertility in Kenya#3; Sriya Iyer Faculty of Economics University of Cambridge Melvyn Weeks Faculty of Economics University of Cambridge January 2009 #3;Acknowledgements: For helpful comments and discussions we... in Microeconomics, and St. Catharine?s College, Cambridge. We are especially grateful to Mrs. Zipporah Onchari and the Director of the Kenya Meteorological Services for giving us access to their rainfall data and for patiently answering our many questions. We...

  16. Sandia National Laboratories: plasma materials interactions studies

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1developmentturbine bladelifetime ismobileparallelplantplasma materials interactions

  17. E-Print Network 3.0 - atomic oxygen interactions Sample Search...

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

    interactions Search Powered by Explorit Topic List Advanced Search Sample search results for: atomic oxygen interactions...

  18. E-Print Network 3.0 - atomic oxygen interaction Sample Search...

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

    interaction Search Powered by Explorit Topic List Advanced Search Sample search results for: atomic oxygen interaction...

  19. Field theoretic description of charge regulation interaction

    E-Print Network [OSTI]

    Natasa Adzic; Rudolf Podgornik

    2014-05-15T23:59:59.000Z

    In order to find the exact form of the electrostatic interaction between two proteins with dissociable charge groups in aqueous solution, we have studied a model system composed of two macroscopic surfaces with charge dissociation sites immersed in a counterion-only ionic solution. Field-theoretic representation of the grand canonical partition function is derived and evaluated within the mean-field approximation, giving the Poisson-Boltzmann theory with the Ninham-Parsegian boundary condition. Gaussian fluctuations around the mean-field are then analyzed in the lowest order correction that we calculate analytically and exactly, using the path integral representation for the partition function of a harmonic oscillator with time-dependent frequency. The first order (one loop) free energy correction gives the interaction free energy that reduces to the zero-frequency van der Waals form in the appropriate limit but in general gives rise to a mono-polar fluctuation term due to charge fluctuation at the dissociation sites. Our formulation opens up the possibility to investigate the Kirkwood-Shumaker interaction in more general contexts where their original derivation fails.

  20. Redshift drift exploration for interacting dark energy

    E-Print Network [OSTI]

    Geng, Jia-Jia; Zhang, Jing-Fei; Zhang, Xin

    2015-01-01T23:59:59.000Z

    By detecting redshift drift in the spectra of Lyman-$\\alpha$ forest of distant quasars, Sandage-Loeb (SL) test directly measures the expansion of the universe, covering the "redshift desert" of $2 \\lesssim z \\lesssim5$. Thus this method is definitely an important supplement to the other geometric measurements and will play a crucial role in cosmological constraints. In this paper, we quantify the ability of SL test signal by a CODEX-like spectrograph for constraining interacting dark energy. Four typical interacting dark energy models are considered: (\\romannumeral1) $Q=\\gamma H\\rho_c$, (\\romannumeral2) $Q=\\gamma H\\rho_{de}$, (\\romannumeral3) $Q=\\gamma H_0\\rho_c$, and (\\romannumeral4) $Q=\\gamma H_0\\rho_{de}$. The results show that for all the considered interacting dark energy models, relative to the current joint SN+BAO+CMB+$H_0$ observations, the constraints on $\\Omega_m$ and $H_0$ would be improved by about 60\\% and 30--40\\%, while the constraints on $w$ and $\\gamma$ would be slightly improved, with a 30-y...

  1. Method of and apparatus for modeling interactions

    DOE Patents [OSTI]

    Budge, Kent G.

    2004-01-13T23:59:59.000Z

    A method and apparatus for modeling interactions can accurately model tribological and other properties and accommodate topological disruptions. Two portions of a problem space are represented, a first with a Lagrangian mesh and a second with an ALE mesh. The ALE and Lagrangian meshes are constructed so that each node on the surface of the Lagrangian mesh is in a known correspondence with adjacent nodes in the ALE mesh. The interaction can be predicted for a time interval. Material flow within the ALE mesh can accurately model complex interactions such as bifurcation. After prediction, nodes in the ALE mesh in correspondence with nodes on the surface of the Lagrangian mesh can be mapped so that they are once again adjacent to their corresponding Lagrangian mesh nodes. The ALE mesh can then be smoothed to reduce mesh distortion that might reduce the accuracy or efficiency of subsequent prediction steps. The process, from prediction through mapping and smoothing, can be repeated until a terminal condition is reached.

  2. Intense Magnetized Plasma-Wall Interaction

    SciTech Connect (OSTI)

    Bauer, Bruno S. [UNR] [UNR; Fuelling, Stephan [UNR] [UNR

    2013-11-30T23:59:59.000Z

    This research project studied wall-plasma interactions relevant to fusion science. Such interactions are a critical aspect of Magneto-Inertial Fusion (MIF) because flux compression by a pusher material, in particular the metal for the liner approach to MIF, involves strong eddy current heating on the surface of the pusher, and probably interactions and mixing of the pusher with the interior fuel during the time when fusion fuel is being burned. When the pusher material is a metal liner, high-energy-density conditions result in fascinating behavior. For example, "warm dense matter" is produced, for which material properties such as resistivity and opacity are not well known. In this project, the transformation into plasma of metal walls subjected to pulsed megagauss magnetic fields was studied with an experiment driven by the UNR 1 MA Zebra generator. The experiment was numerically simulated with using the MHRDR code. This simple, fundamental high-energy-density physics experiment, in a regime appropriate to MIF, has stimulated an important and fascinating comparison of numerical modeling codes and tables with experiment. In addition, we participated in developing the FRCHX experiment to compress a field-reversed-configuration (FRC) plasma with a liner, in collaboration with researchers from Air Force Research Laboratory and Los Alamos National Lab, and we helped develop diagnostics for the Plasma Liner Experiment (PLX) at LANL. Last, but not least, this project served to train students in high-energy-density physics.

  3. ANTENNA-COUPLED LIGHT-MATTER INTERACTIONS

    SciTech Connect (OSTI)

    NOVOTNY, LUKAS

    2014-01-10T23:59:59.000Z

    This project is focused on antenna-coupled photon emission from single quantum emitters. The properties of optical antennas are tailored to control different photophysical parameters, such as the excited state lifetime, the saturation intensity, and the quantum yield [3]. Using a single molecule coupled to an optical antenna whose position and properties can be controllably adjusted we established a detailed and quantitative understanding of light-matter interactions in nanoscale environments. We have studied various quantum emitters: single molecules [11], quantum dots [7], rareearth ions [2], and NV centers in diamond [19]. We have systematically studied the interaction of these emitters with optical antennas. The overall objective was to establish a high-level of control over the light-matter interaction. In order to eliminate the coupling to the environment, we have taken a step further and explored the possibility of levitating the quantum emitter in high vacuum. What started as a side-project soon became a main activity in our research program and led us to the demonstration of vacuum trapping and cooling of a nanoscale particle [14].

  4. Pseudo-interactive monitoring in distributed computing

    SciTech Connect (OSTI)

    Sfiligoi, I.; /Fermilab; Bradley, D.; Livny, M.; /Wisconsin U., Madison

    2009-05-01T23:59:59.000Z

    Distributed computing, and in particular Grid computing, enables physicists to use thousands of CPU days worth of computing every day, by submitting thousands of compute jobs. Unfortunately, a small fraction of such jobs regularly fail; the reasons vary from disk and network problems to bugs in the user code. A subset of these failures result in jobs being stuck for long periods of time. In order to debug such failures, interactive monitoring is highly desirable; users need to browse through the job log files and check the status of the running processes. Batch systems typically don't provide such services; at best, users get job logs at job termination, and even this may not be possible if the job is stuck in an infinite loop. In this paper we present a novel approach of using regular batch system capabilities of Condor to enable users to access the logs and processes of any running job. This does not provide true interactive access, so commands like vi are not viable, but it does allow operations like ls, cat, top, ps, lsof, netstat and dumping the stack of any process owned by the user; we call this pseudo-interactive monitoring. It is worth noting that the same method can be used to monitor Grid jobs in a glidein-based environment. We further believe that the same mechanism could be applied to many other batch systems.

  5. Interfacial Interactions between Implant Electrode and Biological Environment

    E-Print Network [OSTI]

    Chiu, Cheng-Wei 1979-

    2012-11-06T23:59:59.000Z

    interactions to the charge transport. The interfacial interactions of an implanted electrode with neural system will be studied in two types of electrodes: silver and graphene coated. The interfacial impedance of both samples will be studied using EIS...

  6. Tissue-material interactions : bioadhesion and tissue response

    E-Print Network [OSTI]

    Shazly, Tarek (Tarek Michael)

    2009-01-01T23:59:59.000Z

    Diverse interactions between soft tissues and implanted biomaterials directly influence the success or failure of therapeutic interventions. The nature and extent of these interactions strongly depend on both the tissue ...

  7. An Interactive Visual Analytics Framework for Multi-Field Data...

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

    Interactive Visual Analytics Framework for Multi-Field Data in a Geo-Spatial Context. An Interactive Visual Analytics Framework for Multi-Field Data in a Geo-Spatial Context....

  8. antibody-antigen interacting associations: Topics by E-print...

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

    epitope-specific protein-protein interactions with computational atomistic interaction free energy remains predetermined antigen epitopes. Citation: Yu C-M, Peng H-P, Chen I-C,...

  9. GENOTYPE x ENVIRONMENT INTERACTIONS (1) J. C. BOWMAN

    E-Print Network [OSTI]

    Boyer, Edmond

    GENOTYPE x ENVIRONMENT INTERACTIONS (1) J. C. BOWMAN Department of Agriculture, University of Reading, Great Britain SUMMARY A genotype x environment interaction may be defined as a change in the relative perfor- mance of a 'environments

  10. GEODESIC INTERACTIVE SEGMENTATION IN THE COLOR MONOGENIC SIGNAL Explora Nova,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    GEODESIC INTERACTIVE SEGMENTATION IN THE COLOR MONOGENIC SIGNAL FRAMEWORK G. Demarcq Explora Nova is based on the computation of geodesic distances within color mono- genic signal (CMS) fields-- Interactive Segmentation, Clifford Alge- bra, Color Monogenic Signal, Geodesic Distances 1. INTRODUCTION

  11. We're Data Jammin': Building Interactive Educational Materials...

    Office of Environmental Management (EM)

    We're Data Jammin': Building Interactive Educational Materials to Teach Energy We're Data Jammin': Building Interactive Educational Materials to Teach Energy April 4, 2014 - 4:07pm...

  12. Enriching personal information management with document interaction histories

    E-Print Network [OSTI]

    Whitton, Mary C.

    Enriching personal information management with document interaction histories by Karl Gyllstrom;Abstract KARL GYLLSTROM: Enriching personal information management with document interaction histories. (Under the direction of David Stotts.) Personal information management is increasingly challenging

  13. Creators, Audiences, and New Media: Creativity in an Interactive Environment

    E-Print Network [OSTI]

    Bell, Isaac William

    2014-08-31T23:59:59.000Z

    interact with creators. In the process, the conceptual limits of bounded roles such as "publics" and "fandoms" will be examined, and the complicating factors of new media interactivity will be established. Chapter Two, "Permeable Boundaries: The Shifting...

  14. Land-atmosphere interaction and radiative-convective equilibrium

    E-Print Network [OSTI]

    Cronin, Timothy (Timothy Wallace)

    2014-01-01T23:59:59.000Z

    I present work on several topics related to land-atmosphere interaction and radiative-convective equilibrium: the first two research chapters invoke ideas related to land-atmosphere interaction to better understand ...

  15. Perceptually-Driven Decision Theory for Interactive Realistic Rendering

    E-Print Network [OSTI]

    Ferwerda, James A.

    Perceptually-Driven Decision Theory for Interactive Realistic Rendering REYNALD DUMONT, FABIO rendering at interactive rates on commodity graphics hardware. The approach uses efficient perceptual metrics within a decision theoretic framework to optimally order rendering operations, pro- ducing images

  16. MSc Human-Computer Interaction with Ergonomics MSc Project

    E-Print Network [OSTI]

    Blandford, Ann

    MSc Human-Computer Interaction with Ergonomics MSc Project Web analytics and think aloud studies-Computer Interaction with Ergonomics) in the Faculty of Life Sciences, University College London, [2007]. NOTE

  17. Interacting populations : hosts and pathogens, prey and predators

    E-Print Network [OSTI]

    Klepac, Petra

    2007-01-01T23:59:59.000Z

    The interactions between populations can be positive, neutral or negative. Predation and parasitism are both relationships where one species benefits from the interaction at the expense of the other. Predators kill their ...

  18. Second Harmonic Generation Studies of Fe(II) Interactions with...

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

    Second Harmonic Generation Studies of Fe(II) Interactions with Hematite (?-Fe2O3). Second Harmonic Generation Studies of Fe(II) Interactions with Hematite (?-Fe2O3)....

  19. Modeling, estimation, and control of robot-soil interactions

    E-Print Network [OSTI]

    Hong, Won, 1971-

    2001-01-01T23:59:59.000Z

    This thesis presents the development of hardware, theory, and experimental methods to enable a robotic manipulator arm to interact with soils and estimate soil properties from interaction forces. Unlike the majority of ...

  20. Experience, Engagement and Social Interaction at a Steam Locomotive

    E-Print Network [OSTI]

    Hornecker, Eva

    of two interactive stations (figure 2) where visitors can add coal and water to the steam engine at station 1 and regulate the steam pressure in the engine at station 2, as well as a number of visualExperience, Engagement and Social Interaction at a Steam Locomotive Multimodal Interactive Museum

  1. World Data Center for Human Interactions in the Environment

    E-Print Network [OSTI]

    Columbia University

    World Data Center for Human Interactions in the Environment Why Demographic Data are not Up Interactions in the Environment Introduction · AR4 (Schneider et al. 2007: 782): ­ An impact describes Interactions in the Environment Introduction (cont.) · Layers of vulnerability ­ Everyone is vulnerable

  2. Mobile Interaction with Web Services through Associated Real World Objects

    E-Print Network [OSTI]

    Mobile Interaction with Web Services through Associated Real World Objects 1 Gregor Broll, 2 John to access and interact with Web Services through mobile interaction with real world objects. The demonstration will put a focus on the front-end of the framework that comprises augmented posters for mobile

  3. Does interactivity improve exploratory data analysis of animated trend visualization?

    E-Print Network [OSTI]

    Shaw, Chris

    ]. In particular, animation has become a popular method for visualizing trends in multivariate information spaces1 Does interactivity improve exploratory data analysis of animated trend visualization? Felwa A technique for data analysis of large data. We compared interactive animations with non-interactive (passive

  4. $(1+1)$ dimensional Dirac equation with non Hermitian interaction

    E-Print Network [OSTI]

    A. Sinha; P. Roy

    2005-11-29T23:59:59.000Z

    We study $(1+1)$ dimensional Dirac equation with non Hermitian interactions, but real energies. In particular, we analyze the pseudoscalar and scalar interactions in detail, illustrating our observations with some examples. We also show that the relevant hidden symmetry of the Dirac equation with such an interaction is pseudo supersymmetry.

  5. Interactive Visualization of Complex Plant Ecosystems Oliver Deussen1

    E-Print Network [OSTI]

    Reiterer, Harald

    a method for interactive rendering of large outdoor scenes. Complex polygonal plant models and whole plant most of the geometry drastically. With our system, we are able to interactively render very complex naturally. The importance of interactive yet realistic rendering of these very complex ecosystem models

  6. WILD for learning: Interacting through new computing devices anytime, anywhere

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    WILD for learning: Interacting through new computing devices anytime, anywhere Roy D. Pea and Heidy WILD for learning: Interacting through new computing devices anytime, anywhere Roy D. Pea and Heidy Maldonado Introduction We use the acronym WILD to refer to Wireless Interactive Learning Devices1 . WILD

  7. Enriched Protein-Protein Interactions from Biomedical Text

    E-Print Network [OSTI]

    Edinburgh, University of

    Enriched Protein-Protein Interactions from Biomedical Text Barry Haddow, Michael Matthews from Biomedical Text #12;Overview The TXM Project Protein-Protein Interactions Enriched Protein Protein-Protein Interactions from Biomedical Text #12;Project Information Text Mining Programme funded (3

  8. Numerical methods for computing Casimir interactions

    E-Print Network [OSTI]

    Steven G. Johnson

    2010-10-01T23:59:59.000Z

    We review several different approaches for computing Casimir forces and related fluctuation-induced interactions between bodies of arbitrary shapes and materials. The relationships between this problem and well known computational techniques from classical electromagnetism are emphasized. We also review the basic principles of standard computational methods, categorizing them according to three criteria---choice of problem, basis, and solution technique---that can be used to classify proposals for the Casimir problem as well. In this way, mature classical methods can be exploited to model Casimir physics, with a few important modifications.

  9. Peppytides: Interactive Models of Polypeptide Chains

    SciTech Connect (OSTI)

    Zuckermann, Ron; Chakraborty, Promita; Derisi, Joe

    2014-01-21T23:59:59.000Z

    Peppytides are scaled, 3D-printed models of polypeptide chains that can be folded into accurate protein structures. Designed and created by Berkeley Lab Researcher, Promita Chakraborty, and Berkeley Lab Senior Scientist, Dr. Ron Zuckermann, Peppytides are accurate physical models of polypeptide chains that anyone can interact with and fold intro various protein structures - proving to be a great educational tool, resulting in a deeper understanding of these fascinating structures and how they function. Build your own Peppytide model and learn about how nature's machines fold into their intricate architectures!

  10. Peppytides: Interactive Models of Polypeptide Chains

    ScienceCinema (OSTI)

    Zuckermann, Ron; Chakraborty, Promita; Derisi, Joe

    2014-10-28T23:59:59.000Z

    Peppytides are scaled, 3D-printed models of polypeptide chains that can be folded into accurate protein structures. Designed and created by Berkeley Lab Researcher, Promita Chakraborty, and Berkeley Lab Senior Scientist, Dr. Ron Zuckermann, Peppytides are accurate physical models of polypeptide chains that anyone can interact with and fold intro various protein structures - proving to be a great educational tool, resulting in a deeper understanding of these fascinating structures and how they function. Build your own Peppytide model and learn about how nature's machines fold into their intricate architectures!

  11. Neutron scattering and extra short range interactions

    E-Print Network [OSTI]

    V. V. Nesvizhevsky; G. Pignol; K. V. Protasov

    2007-11-14T23:59:59.000Z

    The available data on neutron scattering were analyzed to constrain a hypothetical new short-range interaction. We show that these constraints are several orders of magnitude better than those usually cited in the range between 1 pm and 5 nm. This distance range occupies an intermediate space between collider searches for strongly coupled heavy bosons and searches for new weak macroscopic forces. We emphasise the reliability of the neutron constraints in so far as they provide several independent strategies. We have identified the most promising way to improve them.

  12. Casimir interaction from magnetically coupled eddy currents

    E-Print Network [OSTI]

    Intravaia, Francesco

    2009-01-01T23:59:59.000Z

    We study the Casimir interaction due to eddy (Foucault) currents in thick metallic plates. The Drude model is used to describe the optical response of the metal at low frequencies. A repulsive force arises from the electromagnetic coupling between chargeless currents filling the metallic half-spaces. We show that these overdamped modes are entirely responsible for the thermal anomalies of the Casimir force between good conductors. It turns out that the applicability of the Nernst heat theorem (third law of thermodynamics) must be reviewed since the ground state of the coupled metal+field system can become highly degenerate at zero temperature.

  13. Sandia National Laboratories: Defect-Carrier Interactions

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0EnergySandia InvolvesDOE-BER NASA AwardDefect-Carrier Interactions

  14. Solvent interactions with a triphenylated benzoxazole polymer

    E-Print Network [OSTI]

    Eversdyk, David Allen

    1977-01-01T23:59:59.000Z

    , 4-Dimethyl-3-penta Dimethylsulfoxide n-Dodecane Ethanol 2-Ethoxyethanol 2-(2-Ethoxyethoxy) -e N-Ethylacetamide Ethyl Acetate Ethylbenzene Ethyl Carbonate Ethylcyclohexane none thanol 10. 6 13. 1 9. 9 9. 1 11. 2 15. 3 11. 1 12. 3 10. 8 9... Molar Gi. bbs Energv of Adsorption for Solvent. s DCE ? NI3z at 270 C 30 9. Additional Molar Gibbs Energy of AdsorpLion for Solvent NO C~ ? II 0 at. ?70'C 3 2 9. Solubility Plot for Tviphcnylated Pf)O at 270'C 35 10 Interaction of m ? Cresol Kith...

  15. A blurred interface formulation of The Reference Map Technique for Fluid-Solid Interactions and Fluid-Solid-Solid Interactions

    E-Print Network [OSTI]

    Valkov, Boris Ivanov

    2014-01-01T23:59:59.000Z

    In this work we present a blurred interface method for Fluid-Solid Interactions (FSI) and multiple solids immersed in a fluid or FSSI (Fluid-Solid-Solid Interactions) based on the reference map technique as presented by ...

  16. Turbulence-chemistry interactions in reacting flows

    SciTech Connect (OSTI)

    Barlow, R.S.; Carter, C.D. [Sandia National Laboratories, Livermore, CA (United States)

    1993-12-01T23:59:59.000Z

    Interactions between turbulence and chemistry in nonpremixed flames are investigated through multiscalar measurements. Simultaneous point measurements of major species, NO, OH, temperature, and mixture fraction are obtained by combining spontaneous Raman scattering, Rayleigh scattering, and laser-induced fluorescence (LIF). NO and OH fluorescence signals are converted to quantitative concentrations by applying shot-to-shot corrections for local variations of the Boltzmann fraction and collisional quenching rate. These measurements of instantaneous thermochemical states in turbulent flames provide insights into the fundamental nature of turbulence-chemistry interactions. The measurements also constitute a unique data base for evaluation and refinement of turbulent combustion models. Experimental work during the past year has focused on three areas: (1) investigation of the effects of differential molecular diffusion in turbulent combustion: (2) experiments on the effects of Halon CF{sub 3}Br, a fire retardant, on the structure of turbulent flames of CH{sub 4} and CO/H{sub 2}/N{sub 2}; and (3) experiments on NO formation in turbulent hydrogen jet flames.

  17. Nonlinear interaction between two heralded single photons

    E-Print Network [OSTI]

    T. Guerreiro; A. Martin; B. Sanguinetti; J. S. Pelc; C. Langrock; M. M. Fejer; N. Gisin; H. Zbinden; N. Sangouard; R. T. Thew

    2014-03-09T23:59:59.000Z

    Harnessing nonlinearities strong enough to allow two single photons to interact with one another is not only a fascinating challenge but is central to numerous advanced applications in quantum information science. Currently, all known approaches are extremely challenging although a few have led to experimental realisations with attenuated classical laser light. This has included cross-phase modulation with weak classical light in atomic ensembles and optical fibres, converting incident laser light into a non-classical stream of photon or Rydberg blockades as well as all-optical switches with attenuated classical light in various atomic systems. Here we report the observation of a nonlinear parametric interaction between two true single photons. Single photons are initially generated by heralding one photon from each of two independent spontaneous parametric downconversion sources. The two heralded single photons are subsequently combined in a nonlinear waveguide where they are converted into a single photon with a higher energy. Our approach highlights the potential for quantum nonlinear optics with integrated devices, and as the photons are at telecom wavelengths, it is well adapted to applications in quantum communication.

  18. Cosmic Ray Interactions in Shielding Materials

    SciTech Connect (OSTI)

    Aguayo Navarrete, Estanislao; Kouzes, Richard T.; Ankney, Austin S.; Orrell, John L.; Berguson, Timothy J.; Troy, Meredith D.

    2011-09-08T23:59:59.000Z

    This document provides a detailed study of materials used to shield against the hadronic particles from cosmic ray showers at Earth’s surface. This work was motivated by the need for a shield that minimizes activation of the enriched germanium during transport for the MAJORANA collaboration. The materials suitable for cosmic-ray shield design are materials such as lead and iron that will stop the primary protons, and materials like polyethylene, borated polyethylene, concrete and water that will stop the induced neutrons. The interaction of the different cosmic-ray components at ground level (protons, neutrons, muons) with their wide energy range (from kilo-electron volts to giga-electron volts) is a complex calculation. Monte Carlo calculations have proven to be a suitable tool for the simulation of nucleon transport, including hadron interactions and radioactive isotope production. The industry standard Monte Carlo simulation tool, Geant4, was used for this study. The result of this study is the assertion that activation at Earth’s surface is a result of the neutronic and protonic components of the cosmic-ray shower. The best material to shield against these cosmic-ray components is iron, which has the best combination of primary shielding and minimal secondary neutron production.

  19. Disk-Planet Interactions During Planet Formation

    E-Print Network [OSTI]

    J. C. B. Papaloizou; R. P. Nelson; W. Kley; F. S. Masset; P. Artymowicz

    2006-03-08T23:59:59.000Z

    The discovery of close orbiting extrasolar giant planets led to extensive studies of disk planet interactions and the forms of migration that can result as a means of accounting for their location. Early work established the type I and type II migration regimes for low mass embedded planets and high mass gap forming planets respectively. While providing an attractive means of accounting for close orbiting planets intially formed at several AU, inward migration times for objects in the earth mass range were found to be disturbingly short, making the survival of giant planet cores an issue. Recent progress in this area has come from the application of modern numerical techniques which make use of up to date supercomputer resources. These have enabled higher resolution studies of the regions close to the planet and the initiation of studies of planets interacting with disks undergoing MHD turbulence. This work has led to indications of how the inward migration of low to intermediate mass planets could be slowed down or reversed. In addition, the possibility of a new very fast type III migration regime, that can be directed inwards or outwards, that is relevant to partial gap forming planets in massive disks has been investigated.

  20. Wave-particle Interactions In Rotating Mirrors

    SciTech Connect (OSTI)

    Abraham J. Fetterman and Nathaniel J. Fisch

    2011-01-11T23:59:59.000Z

    Wave-particle interactions in E×B rotating plasmas feature an unusual effect: particles are diffused by waves in both potential energy and kinetic energy. This wave-particle interaction generalizes the alpha channeling effect, in which radio frequency waves are used to remove alpha particles collisionlessly at low energy. In rotating plasmas, the alpha particles may be removed at low energy through the loss cone, and the energy lost may be transferred to the radial electric field. This eliminates the need for electrodes in the mirror throat, which have presented serious technical issues in past rotating plasma devices. A particularly simple way to achieve this effect is to use a high azimuthal mode number perturbation on the magnetic field. Rotation can also be sustained by waves in plasmas without a kinetic energy source. This type of wave has been considered for plasma centrifuges used for isotope separation. Energy may also be transferred from the electric field to particles or waves, which may be useful for ion heating and energy generation.

  1. Interacting Dark Energy: Decay into Fermions

    E-Print Network [OSTI]

    A. de la Macorra

    2007-02-08T23:59:59.000Z

    A dark energy component is responsible for the present stage of acceleration of our universe. If no fine tuning is assumed on the dark energy potential then it will end up dominating the universe at late times and the universe will not stop this stage of acceleration. On the other hand, the equation of state of dark energy seems to be smaller than -1 as suggested by the cosmological data. We take this as an indication that dark energy does indeed interact with another fluid (we consider fermion fields) and we determine the interaction through the cosmological data and extrapolate it into the future. We study the conditions under which a dark energy can dilute faster or decay into the fermion fields. We show that it is possible to live now in an accelerating epoch dominated by the dark energy and without introducing any fine tuning parameters the dark energy can either dilute faster or decaying into fermions in the future. The acceleration of the universe will then cease.

  2. Interactive Volume Rendering of Diffusion Tensor Data

    SciTech Connect (OSTI)

    Hlawitschka, Mario; Weber, Gunther; Anwander, Alfred; Carmichael, Owen; Hamann, Bernd; Scheuermann, Gerik

    2007-03-30T23:59:59.000Z

    As 3D volumetric images of the human body become an increasingly crucial source of information for the diagnosis and treatment of a broad variety of medical conditions, advanced techniques that allow clinicians to efficiently and clearly visualize volumetric images become increasingly important. Interaction has proven to be a key concept in analysis of medical images because static images of 3D data are prone to artifacts and misunderstanding of depth. Furthermore, fading out clinically irrelevant aspects of the image while preserving contextual anatomical landmarks helps medical doctors to focus on important parts of the images without becoming disoriented. Our goal was to develop a tool that unifies interactive manipulation and context preserving visualization of medical images with a special focus on diffusion tensor imaging (DTI) data. At each image voxel, DTI provides a 3 x 3 tensor whose entries represent the 3D statistical properties of water diffusion locally. Water motion that is preferential to specific spatial directions suggests structural organization of the underlying biological tissue; in particular, in the human brain, the naturally occuring diffusion of water in the axon portion of neurons is predominantly anisotropic along the longitudinal direction of the elongated, fiber-like axons [MMM+02]. This property has made DTI an emerging source of information about the structural integrity of axons and axonal connectivity between brain regions, both of which are thought to be disrupted in a broad range of medical disorders including multiple sclerosis, cerebrovascular disease, and autism [Mos02, FCI+01, JLH+99, BGKM+04, BJB+03].

  3. Ising interaction between capacitively-coupled superconducting flux qubits

    E-Print Network [OSTI]

    Takahiko Satoh; Yuichiro Matsuzaki; Kosuke Kakuyanagi; Koichi Semba; Hiroshi Yamaguchi; Shiro Saito

    2015-01-30T23:59:59.000Z

    Here, we propose a scheme to generate a controllable Ising interaction between superconducting flux qubits. Existing schemes rely on inducting couplings to realize Ising interactions between flux qubits, and the interaction strength is controlled by an applied magnetic field On the other hand, we have found a way to generate an interaction between the flux qubits via capacitive couplings. This has an advantage in individual addressability, because we can control the interaction strength by changing an applied voltage that can be easily localized. This is a crucial step toward the realizing superconducting flux qubit quantum computation.

  4. Cyclotron dynamics of interacting bosons in artificial magnetic fields

    E-Print Network [OSTI]

    Xiaopeng Li; S. Das Sarma

    2014-06-24T23:59:59.000Z

    We study theoretically quantum dynamics of interacting bosons in artificial magnetic fields as engineered in recent ultracold atomic experiments, where quantum cyclotron orbital motion has been observed. With exact numerical simulations and perturbative analyses, we find that interactions induce damping in the cyclotron motion. The damping time is found to be dependent on interaction and tunneling strengths monotonically, while its dependence on magnetic flux is non-monotonic. Sufficiently strong interactions would render bosons dynamically localized inhibiting the cyclotron motion. The damping predicted by us can be construed as an interaction-induced quantum decoherence of the cyclotron motion.

  5. Self-interaction corrections in density functional theory

    SciTech Connect (OSTI)

    Tsuneda, Takao, E-mail: ttsuneda@yamanashi.ac.jp [Fuel Cell Nanomaterials Center, University of Yamanashi, Kofu 400-0021 (Japan)] [Fuel Cell Nanomaterials Center, University of Yamanashi, Kofu 400-0021 (Japan); Hirao, Kimihiko [Computational Chemistry Unit, RIKEN Advanced Institute for Computational Science, Kobe, Hyogo 650-0047 (Japan)] [Computational Chemistry Unit, RIKEN Advanced Institute for Computational Science, Kobe, Hyogo 650-0047 (Japan)

    2014-05-14T23:59:59.000Z

    Self-interaction corrections for Kohn-Sham density functional theory are reviewed for their physical meanings, formulations, and applications. The self-interaction corrections get rid of the self-interaction error, which is the sum of the Coulomb and exchange self-interactions that remains because of the use of an approximate exchange functional. The most frequently used self-interaction correction is the Perdew-Zunger correction. However, this correction leads to instabilities in the electronic state calculations of molecules. To avoid these instabilities, several self-interaction corrections have been developed on the basis of the characteristic behaviors of self-interacting electrons, which have no two-electron interactions. These include the von Weizsäcker kinetic energy and long-range (far-from-nucleus) asymptotic correction. Applications of self-interaction corrections have shown that the self-interaction error has a serious effect on the states of core electrons, but it has a smaller than expected effect on valence electrons. This finding is supported by the fact that the distribution of self-interacting electrons indicates that they are near atomic nuclei rather than in chemical bonds.

  6. Guest Editorial: Brain/Neuronal-Computer Game Interfaces and Interaction 1. Brain-Computer Games Interaction

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Guest Editorial: Brain/Neuronal-Computer Game Interfaces and Interaction 1. Brain-Computer Games are controlled through brain-computer interface (BCI) technology which requires sophisticated signal processing is a challenge being addressed by many researchers. Producing paradigms for training users to produce brain

  7. Oblique interactions of dust density waves

    SciTech Connect (OSTI)

    Wang, Zhelchui [Los Alamos National Laboratory; Li, Yang - Fang [MAX-PLANCK INSTITUTE; Hou, Lujing [MAX-PLANCK INSTITUTE; Jiang, Ke [MAX-PLANCK INSTITUTE; Wu, De - Jin [CHINA; Thomas, Hubertus M [MAX-PLANCK INSTITUTE; Morfill, Gregor E [MAX-PLANCK INSTITUTE

    2010-01-01T23:59:59.000Z

    Self-excited dust density waves (DDWs) are studied in a striped electrode device. In addition to the usual perpendicularly (with respect to the electrode) propagating DDWs, which have been frequently observed in dusty plasma experiments on the ground, a low-frequency oblique mode is also observed. This low-frequency oblique DDW has a frequency much lower than the dust plasma frequency and its spontaneous excitation is observed even with a very low dust density. It is found that the low-frequency oblique mode can exist either separately or together with the usual perpendicular mode. In the latter case, a new mode arises as a result of the interactions between the perpendicular and the oblique modes. The experiments show that these three modes satisfy the wave coupling conditions in both the frequencies and the wave-vectors.

  8. Galaxy Mergers and Interactions at High Redshift

    E-Print Network [OSTI]

    Christopher J. Conselice

    2006-11-04T23:59:59.000Z

    In this review we discuss the evidence for galaxy interactions and mergers in the distant universe and the role of mergers in forming galaxies. Observations show that the fraction of massive (M> M_*) galaxies involved in major mergers is roughly 5-10% at z~1. The merger fraction however increases steeply for the most massive galaxies up to z~3, where the merger fraction is 50+/-20%. Using N-body models of the galaxy merger process at a variety of merger conditions, merger mass ratios, and viewing angles this merger fraction can be converted into a merger rate, and mass accretion rate due to mergers. A simple integration of the merger rate shows that a typical massive galaxy at z~3 will undergo 4-5 major mergers between z~3 and z~0, with most of this activity, and resulting mass assembly, occurring at z > 1.5.

  9. Two-wave interaction in ideal magnetohydrodynamics

    E-Print Network [OSTI]

    T. V. Zaqarashvili; B. Roberts

    2006-02-24T23:59:59.000Z

    The weakly nonlinear interaction of sound and linearly polarised Alfv{\\'e}n waves propagating in the same direction along an applied magnetic field is studied. It is found that a sound wave is coupled to the Alfv{\\'e}n wave with double period and wavelength when the sound and Alfv{\\'e}n speeds are equal. The Alfv{\\'e}n wave drives the sound wave through the ponderomotive force, while the sound wave returns energy back to the Alfv{\\'e}n wave through the parametric (swing) influence. As a result, the two waves alternately exchange their energy during propagation. The process of energy exchange is faster for waves with stronger amplitudes. The phenomenon can be of importance in astrophysical plasmas, including the solar atmosphere and solar wind.

  10. Variable Interactions in Query-Driven Visualization

    SciTech Connect (OSTI)

    Bethel, E. Wes; Gosink, Luke J.; Anderson, John C.; Joy, Kenneth I.

    2007-10-25T23:59:59.000Z

    One fundamental element of scientific inquiry is discoveringrelationships, particularly the interactions between different variablesin observed or simulated phenomena. Building upon our prior work in thefield of Query-Driven Visualization, where visual data analysisprocessing is focused on subsets of large data deemed to be"scientifically interesting," this new work focuses on a novel knowledgediscovery capability suitable for use with petascale class datasets. Itenables visual presentation of the presence or absence of relationships(correlations) between variables in data subsets produced by Query-Drivenmethodologies. This technique holds great potential for enablingknowledge discovery from large and complex datasets currently emergingfrom SciDAC and INCITE projects. It is sufficiently generally to beapplicable to any time of complex, time-varying, multivariate data fromstructured, unstructured or adaptive grids.

  11. Plasma-Surface Interactions on Liquids

    SciTech Connect (OSTI)

    R. Bastasz; W. Eckstein

    2000-05-01T23:59:59.000Z

    Liquid plasma-facing surfaces have been suggested as an option for advanced fusion devices, particularly in regions where solid materials may not survive over long operating periods. Because liquid surfaces can be replenished, they offer the possibility of tolerating intense particle bombardment and of recovering from off-normal events. As a preliminary step in understanding the nature of plasma-surface interactions on liquids, the authors consider some of the surface processes occurring in liquids undergoing irradiation by energetic particles. These include (1) sputtering, (2) segregation of liquid component species and impurities, (3) evaporation, and (4) trapping and release of incident particles. Aspects of these processes are examined for several candidate liquids, which represent three types of low-Z liquids: pure metals (Li), metallic alloys (Sn-Li), and compound insulators (Li{sub 2}BeF{sub 4}).

  12. Hadronization of QCD and effective interactions

    SciTech Connect (OSTI)

    Frank, M.R.

    1994-07-01T23:59:59.000Z

    An introductory treatment of hadronization through functional integral calculus and bifocal Bose fields is given. Emphasis is placed on the utility of this approach for providing a connection between QCD and effective hadronic field theories. The hadronic interactions obtained by this method are nonlocal due to the QCD substructure, yet, in the presence of an electromagnetic field, maintain the electromagnetic gauge invariance manifest at the quark level. A local chiral model which is structurally consistent with chiral perturbation theory is obtained through a derivative expansion of the nonlocalities with determined, finite coefficients. Tree-level calculations of the pion form factor and {pi} {minus} {pi} scattering, which illustrate the dual constituent-quark-chiral-model nature of this approach, are presented.

  13. Three regimes of relativistic beam - plasma interaction

    SciTech Connect (OSTI)

    Muggli, P.; Allen, B.; Fang, Y.; Yakimenko, V.; Babzien, M.; Kusche, K.; Fedurin, M.; Vieira, J.; Martins, J.; Silva, L. [Max Planck Institute for Physics, 80805 Munich (Germany) and University of Southern California, Los Angeles, CA 90089 (United States); University of Southern California, Los Angeles, CA 90089 (United States); Brookhaven National Laboratory, Upton, NY 11973 (United States); GoLP/Instituto de Plasmas e Fusao Nuclear - Laboratorio Associado Instituto Superior Tecnico (IST), Technical University of Lisbon, Lisboa (Portugal)

    2012-12-21T23:59:59.000Z

    Three regimes of relativistic beam - plasma interaction can in principle be reached at the ATF depending on the relative transverse and longitudinal size of the electron bunch when compared to the cold plasma collisionless skin depth c?{omega}{sub pe}: the plasma wakefield accelerator (PWFA), the self-modulation instability (SMI), and the current filamentation instability (CFI) regime. In addition, by choosing the bunch density, the linear, quasi-nonlinear and non linear regime of the PWFA can be reached. In the case of the two instabilities, the bunch density determines the growth rate and therefore the occurrence or not of the instability. We briefly describe these three regimes and outline results demonstrating that all these regime have or will be reached experimentally. We also outline planned and possible follow-on experiments.

  14. Bogoliubov spectrum of interacting Bose gases

    E-Print Network [OSTI]

    Mathieu Lewin; Phan Thŕnh Nam; Sylvia Serfaty; Jan Philip Solovej

    2014-03-11T23:59:59.000Z

    We study the large-N limit of a system of N bosons interacting with a potential of intensity 1/N. When the ground state energy is to the first order given by Hartree's theory, we study the next order, predicted by Bogoliubov's theory. We show the convergence of the lower eigenvalues and eigenfunctions towards that of the Bogoliubov Hamiltonian (up to a convenient unitary transform). We also prove the convergence of the free energy when the system is sufficiently trapped. Our results are valid in an abstract setting, our main assumptions being that the Hartree ground state is unique and non-degenerate, and that there is complete Bose-Einstein condensation on this state. Using our method we then treat two applications: atoms with ''bosonic'' electrons on one hand, and trapped 2D and 3D Coulomb gases on the other hand.

  15. Nonlinear waves in strongly interacting relativistic fluids

    E-Print Network [OSTI]

    D. A. Fogaça; F. S. Navarra; L. G. Ferreira Filho

    2012-12-31T23:59:59.000Z

    During the past decades the study of strongly interacting fluids experienced a tremendous progress. In the relativistic heavy ion accelerators, specially the RHIC and LHC colliders, it became possible to study not only fluids made of hadronic matter but also fluids of quarks and gluons. Part of the physics program of these machines is the observation of waves in this strongly interacting medium. From the theoretical point of view, these waves are often treated with li-nearized hydrodynamics. In this text we review the attempts to go beyond linearization. We show how to use the Reductive Perturbation Method to expand the equations of (ideal and viscous) relativistic hydrodynamics to obtain nonlinear wave equations. These nonlinear wave equations govern the evolution of energy density perturbations (in hot quark gluon plasma) or baryon density perturbations (in cold quark gluon plasma and nuclear matter). Different nonlinear wave equations, such as the breaking wave, Korteweg-de Vries and Burgers equations, are obtained from different equations of state (EOS). In nuclear matter, the Walecka EOS may lead to a KdV equation. We explore equations of state such as those extracted from the MIT Bag Model and from QCD in the mean field theory approach. Some of these equations are integrable and have analytical solitonic solutions. We derive these equations also in spherical and cylindrical coordinates. We extend the analysis to two and three dimensions to obtain the Kadomtsev-Petviashvili (KP) equation, which is the generalization of the KdV. The KP is also integrable and presents analytical solitonic solutions. In viscous relativistic hydrodynamics we have second order patial derivatives which physically represent dissipation terms. We present numerical solutions and their corresponding algorithms for the cases where the equations are not integrable.

  16. Study of electron-positron interactions

    SciTech Connect (OSTI)

    Abashian, A.; Gotow, K.; Philonen, L.

    1990-09-15T23:59:59.000Z

    For the past seven years, this group has been interested in the study of tests of the Standard Model of Electroweak interactions. The program has centered about the AMY experiment which examines the nature of the final state products in electron-positron collisions in the center of mass energy range near 60 GeV. Results of these measurements have shown a remarkable consistency with the predictions of the minimal model of 3 quark and lepton generations and single charged and neutral intermediate bosons. No new particles or excited states have been observed nor has any evidence for departures in cross sections or angular asymmetries from expectations been observed. These conclusions have been even more firmly established by the higher energy results from the LEP and SLC colliders at center of mass energies of about 90 GeV. Our focus is shifting to the neutrino as a probe to electroweak interactions. The relative merit of attempting to observe neutrinos from point sources versus observing neutrinos generally is not easy to predict. The improved ability to interpret is offset by the probably episodic nature of the emission and irreproducibility of the results. In this phase of development, it is best to be sensitive to both sources of neutrinos. As a second phase of our program at Virginia Tech, we are studying the feasibility of detecting cosmic ray neutrinos in a proposed experiment which we have called NOVA. the results of the test setup will be instrumental in developing an optimum design. A third program we are involved in is the MEGA experiment at Los Alamos, an experiment to place a limit on the rate of muon decay to electron plus photon which is forbidden by the Standard Model.

  17. Long Range Interactions With Laser Cooled Neutral Atoms

    SciTech Connect (OSTI)

    Gattobigio, Giovanni Luca [Institut Non Lineaire de Nice, Universite de Nice-Sophia-Antipolis, CNRS UMR 661, 1361, route des Lucioles 06560 Valbonne France (France); Dipartimento di Fisica dell'Universita di Ferrara, 44100 Ferrara (Italy); Michaud, Franck; Labeyrie, Guillaume; Kaiser, Robin [Institut Non Lineaire de Nice, Universite de Nice-Sophia-Antipolis, CNRS UMR 661, 1361, route des Lucioles 06560 Valbonne (France); Loureiro, Jorge; Mendonca, Jose Tito; Tercas, Hugo [Instituto Superior Tecnico, Av. Rovisco Pais 1, 1049-001 Lisboa (Portugal); Pohl, Thomas [ITAMP, 60 Garden Street, Cambridge, MA 02138 (United States)

    2008-09-07T23:59:59.000Z

    Multiple scattering of light in a trap of laser cooled neutral atoms leads to repulsion forces between the atoms. The corresponding interactions have long range behavior in 1/r{sup 2} and are thus similar to Coulomb interaction in an one component confined plasma. Consequences of these interactions will be described in this paper, including the limitation of the spatial density one can obtain in such systems and self-sustained oscillations of the cloud.

  18. Thermodynamical description of the interacting new agegraphic dark energy

    E-Print Network [OSTI]

    A. Sheykhi; M. R. Setare

    2010-09-30T23:59:59.000Z

    We describe the thermodynamical interpretation of the interaction between new agegraphic dark energy and dark matter in a non-flat universe. When new agegraphic dark energy and dark matter evolve separately, each of them remains in thermodynamic equilibrium. As soon as an interaction between them is taken into account, their thermodynamical interpretation changes by a stable thermal fluctuation. We obtain a relation between the interaction term of the dark components and this thermal fluctuation.

  19. Interaction of coal-derived synthesis gas impurities with solid...

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

    coal-derived synthesis gas impurities with solid oxide fuel cell metallic components. Interaction of coal-derived synthesis gas impurities with solid oxide fuel cell metallic...

  20. Bridging Research Interactions Through Collaborative Development Grants in Energy

    Broader source: Energy.gov [DOE]

    The DOE Bridging Research Interactions through collaborative Development Grants in Energy (BRIDGE) program funds collaborative research teams to significantly lower the cost of solar energy systems...

  1. Computer Simulations Yield Clues to How Cells Interact With Surroundin...

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

    to How Cells Interact With Surroundings Berkeley Lab research has implications for cancer, atherosclerosis research March 21, 2013 | Tags: Biological and Environmental Research...

  2. Effect of Surface Site Interactions on Potentiometric Titration...

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

    accumulation behavior on single crystal faces of metal oxide minerals. Citation: Chatman SME, PP Zarzycki, T Preocanin, and KM Rosso.2013."Effect of Surface Site Interactions on...

  3. assessing molecular interaction: Topics by E-print Network

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

    Szilagyi a is modeled with a spatially and temporally discretized version of the linear kinematic wave equation written-aquifer interactions; Baseflow separation; Flow routing;...

  4. Development of Chemical Model to Predict the Interactions between...

    Open Energy Info (EERE)

    properties of fluid and formation rocks; to estimate kinetic rate laws of CO2salinerock interactions, in high P, T, with phase configurations ranging for single aqueous, SC...

  5. Lead and strontium isotopic evidence for crustal interaction...

    Open Energy Info (EERE)

    and strontium isotopic evidence for crustal interaction and compositional zonation in the source regions of Pleistocene basaltic and rhyolitic magmas of the Coso volcanic field,...

  6. Interaction between DBI-essence and other Dark Energies

    E-Print Network [OSTI]

    Surajit Chattopadhyay; Ujjal Debnath

    2010-06-11T23:59:59.000Z

    The present work considers interaction between DBI-essence and other candidates of dark energies like modified Chaplygin gas, hessence, tachyonic field, and new agegraphic dark energy. The potentials of the fields have been reconstructed under interaction and their evolutions have been viewed against cosmic time $t$ and scalar field $\\phi$. Equation of state parameters have also been obtained. The nature of potentials and the equation of state parameters of the dark energies have been found graphically in presence of interaction (both small and large interaction).

  7. Studying Wind Energy/Bird Interactions: A Guidance Document

    SciTech Connect (OSTI)

    Anderson, R. [California Energy Commission (US); Morrison, M. [California State Univ., Sacramento, CA (US); Sinclair, K. [Dept. of Energy/National Renewable Energy Lab. (US); Strickland, D. [WEST, Inc. (US)

    1999-12-01T23:59:59.000Z

    This guidance document is a product of the Avian Subcommittee of the National Wind Coordinating Committee (NWCC). The NWCC was formed to better understand and promote responsible, credible, and comparable avian/wind energy interaction studies. Bird mortality is a concern and wind power is a potential clean and green source of electricity, making study of wind energy/bird interactions essential. This document provides an overview for regulators and stakeholders concerned with wind energy/bird interactions, as well as a more technical discussion of the basic concepts and tools for studying such interactions.

  8. Motion Capture of Character Interactions with a Rope.

    E-Print Network [OSTI]

    Porter, Bryce Zachary

    2012-01-01T23:59:59.000Z

    ??We present a solution to animating interactions between characters and thin, non-rigid bodies using a passive optical motion capture system. Prior work in human body… (more)

  9. Inference of Interactions in Cyanobacterial-Heterotrophic Co...

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

    BE Linggi, LM Markillie, NG Isern, WB Chrisler, LA Kucek, EA Hill, G Pinchuk, DA Bryant, HS Wiley, JK Fredrickson, and A Konopka.2014."Inference of Interactions in...

  10. antineutrino-electron interactions: Topics by E-print Network

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

    are discussed, especially those which rely on Cherenkov radiation. Emmanuel A. Paschos; Olga Lalakulich 2002-07-23 5 Interactive forces Mathematical Physics (arXiv) Summary: This...

  11. QCD and High Energy Interactions: Moriond 2014 Theory Summary

    E-Print Network [OSTI]

    Thomas Gehrmann

    2014-06-20T23:59:59.000Z

    This article summarizes new theoretical developments, ideas and results that were presented at the 2014 Moriond "QCD and High Energy Interactions".

  12. Raman and XPS characterization of fuel-cladding interactions...

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

    MOX fuel mixtures. Citation: Windisch CF, Jr, CH Henager, Jr, MH Engelhard, and WD Bennett.2009."Raman and XPS characterization of fuel-cladding interactions using miniature...

  13. adaptive interactive technologies: Topics by E-print Network

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

    Shock-induced combustion Fluid-structure interaction Implementation Parallel Adaptive Cartesian Upwind Mathematics Websites Summary: Finite volume methods Adaptive mesh refinement...

  14. Towards a Ubiquitous Semantics of Interaction: phenomenology, scenarios and traces

    E-Print Network [OSTI]

    Dix, Alan

    Towards a Ubiquitous Semantics of Interaction: phenomenology, scenarios and traces Alan Dix does not attempt to address the whole question, but focuses on a phenomenological semantics

  15. Poroelastic modeling of fracture-seismic wave interaction

    E-Print Network [OSTI]

    Toru Takahashi

    2009-01-07T23:59:59.000Z

    JCRM All rights reserved. Volume x, Number x, Month 200x, pp.x-x. [Issue paper]. Poroelastic modeling of fracture-seismic wave interaction. Seiji NAKAGAWA.

  16. Influence of the Charge State on the Structures and Interactions...

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

    Antibiotics with Cell-Wall Analogue Peptides: Influence of the Charge State on the Structures and Interactions of Vancomycin Antibiotics with Cell-Wall Analogue Peptides:...

  17. Grid Interaction Tech Team, and International Smart Grid Collaboration...

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

    Team, and International Smart Grid Collaboration Grid Interaction Tech Team, and International Smart Grid Collaboration 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

  18. Biodiversity, Species Interactions and Ecological Networks in a

    E-Print Network [OSTI]

    de Aguiar, Marcus A. M.

    Biodiversity, Species Interactions and Ecological Networks in a Fragmented World Melanie Hagen*, W 172 10. Conclusions 175 Acknowledgements 177 Appendix 177 References 181 Abstract Biodiversity

  19. Interaction Between Carbon Markets and Renewable Energy Markets (Poster)

    SciTech Connect (OSTI)

    Carroll, G. L.; Milford, J.; Bird, L.

    2006-10-03T23:59:59.000Z

    This poster, submitted for the CU Energy Initiative/NREL Symposium on October 3, 2006 in Boulder, Colorado, discusses the interaction between carbon markets and renewable energy markets.

  20. Interactions of ciliates with cells and viruses of fish.

    E-Print Network [OSTI]

    Pinheiro, Marcel D.O.

    2013-01-01T23:59:59.000Z

    ??This thesis develops and utilizes in vitro approaches to study ciliate/fish interactions. The thesis is divided into six chapters. Chapter one reviews the literature on… (more)

  1. Experiment-Based Model for the Chemical Interactions between...

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

    between Geothermal Rocks, Supercritical Carbon Dioxide and Water Experiment-Based Model for the Chemical Interactions between Geothermal Rocks, Supercritical Carbon Dioxide...

  2. Interactions of a Stabilized Radion and Duality

    E-Print Network [OSTI]

    Zackaria Chacko; Rashmish K. Mishra; Daniel Stolarski; Christopher B. Verhaaren

    2014-11-13T23:59:59.000Z

    We determine the couplings of the graviscalar radion in Randall-Sundrum models to Standard Model fields propagating in the bulk of the space, taking into account effects arising from the dynamics of the Goldberger-Wise scalar that stabilizes the size of the extra dimension. The leading corrections to the radion couplings are shown to arise from direct contact interactions between the Goldberger-Wise scalar and the Standard Model fields. We obtain a detailed interpretation of the results in terms of the holographic dual of the radion, the dilaton. In doing so, we determine how the familiar identification of the parameters on the two sides of the AdS/CFT correspondence is modified in the presence of couplings of the bulk Standard Model fields to the Goldberger-Wise scalar. We find that corrections to the form of the dilaton couplings from effects associated with the stabilization of the extra dimension are suppressed by the square of the ratio of the dilaton mass to the Kaluza-Klein scale, in good agreement with results from the CFT side of the correspondence.

  3. Study of electron and neutrino interactions

    SciTech Connect (OSTI)

    Abashian, A.

    1997-03-18T23:59:59.000Z

    This is the final report for the DOE-sponsored experimental particle physics program at Virginia Tech to study the properties of the Standard Model of strong and electroweak interactions. This contract (DE-AS05-80ER10713) covers the period from August 1, 1980 to January 31, 1993. Task B of this contract, headed by Professor Alexander Abashian, is described in this final report. This program has been pursued on many fronts by the researchers-in a search for axions at SLAC, in electron-positron collisions in the AMY experiment at the TRISTAN collider in Japan, in measurements of muon decay properties in the MEGA and RHO experiments at the LAMPF accelerator, in a detailed analysis of scattering effects in the purported observation of a 17 keV neutrino at Oxford, in a search for a disoriented chiral condensate with the MiniMax experiment at Fermilab, and in an R&D program on resistive plate counters that could find use in low-cost high-quality charged particle detection at low rates.

  4. Wake potentials of the ILC Interaction Region

    SciTech Connect (OSTI)

    Novokhatski, A.; /SLAC

    2011-08-16T23:59:59.000Z

    The vacuum chamber of the ILC Interaction Region (IR) is optimized for best detector performance. It has special shaping to minimize additional backgrounds due to the metal part of the chamber. Also, for the same reason this thin vacuum chamber does not have water cooling. Therefore, small amounts of power, which may be deposited in the chamber, can be enough to raise the chamber to a high temperature. One of the sources of 'heating' power is the electromagnetic field of the beam. This field diffracts by non-regularities of the beam pipe and excites free-propagating fields, which are then absorbed by the pipe wall. In addition we have a heating power of the image currents due to finite conductivity of the metallic wall. We will discuss these effects as updating the previous results. The conclusions of this report are: (1) The amount of the beam energy loss in IR is almost equal to the energy loss in one ILC (TESLA) accelerating cryo-module; (2) Addition energy spread at IR is very small; (3) Spectrum of the wake fields is limited 300 GHz; (4) Average power of the wake fields excited in IR is 30 W for nominal ILC parameters; and (5) Pulse power in this case is 6 kilowatts.

  5. SURFACTANT - POLYMER INTERACTION FOR IMPROVED OIL RECOVERY

    SciTech Connect (OSTI)

    Unknown

    1998-10-01T23:59:59.000Z

    The goal of this research is to use the interaction between a surfactant and a polymer for efficient displacement of tertiary oil by improving slug integrity, adsorption and mobility control. Surfactant--polymer flooding has been shown to be highly effective in laboratory-scale linear floods. The focus of this proposal is to design an inexpensive surfactant-polymer mixture that can efficiently recover tertiary oil by avoiding surfactant slug degradation high adsorption and viscous/heterogeneity fingering. A mixture comprising a ''pseudo oil'' with appropriate surfactant and polymer has been selected to study micellar-polymer chemical flooding. The physical properties and phase behavior of this system have been determined. A surfactant-polymer slug has been designed to achieve high efficiency recovery by improving phase behavior and mobility control. Recovery experiments have been performed on linear cores and a quarter 5-spot. The same recovery experiments have been simulated using a commercially available simulator (UTCHEM). Good agreement between experimental data and simulation results has been achieved.

  6. SURFACTANT - POLYMER INTERACTION FOR IMPROVED OIL RECOVERY

    SciTech Connect (OSTI)

    Unknown

    1997-09-01T23:59:59.000Z

    The goal of this research is to use the interaction between a surfactant and a polymer for efficient displacement of tertiary oil by improving slug integrity, adsorption and mobility control. Surfactant--polymer flooding has been shown to be highly effective in laboratory-scale linear floods. The focus of this proposal is to design an inexpensive surfactant-polymer mixture that can efficiently recover tertiary oil by avoiding surfactant slug degradation, high adsorption and viscous/heterogeneity fingering. This report contains data concerning selection of appropriate fluids for use in laboratory experiments and numerical simulations. A mixture comprising a ''pseudo oil'' with appropriate surfactant and polymer is proposed. The properties of this system has been determined. The experimental set-up has been conditioned for use and experiments involving the aforementioned system have already started. A commercial simulator has been acquired for use in reproducing the experiments. A graduate student has been trained in its use. Linear stability analysis equations have been developed and phase maps for one and two-dimensions are currently computed.

  7. Flavor Changing Supersymmetry Interactions in a Supernova

    E-Print Network [OSTI]

    Philip S. Amanik; George M. Fuller; Benjamin Grinstein

    2005-10-14T23:59:59.000Z

    We consider for the first time R-parity violating interactions of the Minimal Standard Supersymmetric Model involving neutrinos and quarks (``flavor changing neutral currents'', FCNC's) in the infall stage of stellar collapse. Our considerations extend to other kinds of flavor changing neutrino reactions as well. We examine non-forward neutrino scattering processes on heavy nuclei and free nucleons in the supernova core. This investigation has led to four principal original discoveries/products: (1) first calculation of neutrino flavor changing cross sections for spin one half (e.g. free nucleon) and spin zero nuclear targets; (2) discovery of nuclear mass number squared (A squared) coherent amplification of neutrino-quark FCNC's; (3) analysis of FCNC-induced alteration of electron capture and weak/nuclear equilibrium in the collapsing core; and (4) generalization of the calculated cross sections (mentioned in 1) for the case of hot heavy nuclei to be used in collapse/supernova and neutrino transport simulations. The scattering processes that we consider allow electron neutrinos to change flavor during core collapse, thereby opening holes in the electron neutrino sea, which allows electron capture to proceed and results in a lower core electron fraction. A lower electron fraction implies a lower homologous core mass, a lower shock energy, and a greater nuclear photo-disintegration burden for the shock. In addition, unlike the standard supernova model, the core now could have net muon and/or tau lepton numbers. These effects could be significant even for supersymmetric couplings below current experimental bounds.

  8. Lithium/water interactions: Experiments and analysis

    SciTech Connect (OSTI)

    Lomperski, S.; Corradini, M.L. (Univ. of Wisconsin, Madison, WI (United States))

    1993-08-01T23:59:59.000Z

    The interaction of molten-lithium droplets with water is studied experimentally. In one set of experiments, droplets of [approximately]10- to 15-mm diameter are injected into a vessel filled with water. The reaction is filmed, and pressure measurements are made. The initial metal and water temperatures range from 200 to 500[degrees]C and 20 to 70[degrees]C, respectively. It is found that when reactant temperatures are high, an explosive reaction often occurs. When the initial lithium temperature is >400[degrees]C and the water is >30[degrees]C, the explosive reactions become much more probable, with pressure peaks as high as 4 MPa. The reaction is modeled to explain the temperature threshold for this metal-ignition phenomena. Results with the model support the hypothesis that explosive reactions occur when the lithium droplet surface reaches its saturation temperature while the hydrogen film surrounding the drop is relatively thin. A second set of experiments measures the reaction rate of nonexplosive lithium-water reactions. The test geometry parallels that of the previous experiments, and the reactant temperature combinations are deliberately kept below the observed ignition threshold. Two separate methods are used to determine the reaction rate in each test: One uses a three-color pyrometer to measure the drop temperature as the lithium rises through the water, while the other consists of a photographic technique that measures the amount of hydrogen generated. Measured reaction rates range from [approximately]10 to 50 mol/s[center dot]m[sup 2] with good agreement between the two measurement techniques. The data do not show any significant variation in the reaction rate as a function of either the initial water or initial lithium temperature. 17 refs., 15 figs.

  9. Standard electroweak interactions and Higgs bosons

    SciTech Connect (OSTI)

    Cox, B.; Gilman, F.J.

    1984-09-01T23:59:59.000Z

    In the standard model, only one basic component remains to be found: the Higgs boson. The specifics of Higgs boson production and detection, with decay to t anti t and a particular t quark mass range in mind, have not been examined in detail. As such, the working group on Standard Electroweak Interactions and Higgs Bosons at this meeting decided to concentrate on Higgs boson production and detection at SSC energies in the particular case where the Higgs mass is in the range so as to make t anti t quark-antiquark pairs the dominant decay mode. The study of this case, that of the so-called intermediate mass Higgs, had already been launched in the Berkeley PSSC Workshop on Electroweak Symmetry Breaking, and was continued and extended here. The problems of t quark jet identification and detection efficiency and the manner of rejection of background (especially from b quark jets) with realistic detectors then occupied much of the attention of the group. The subject of making precise measurements of parameters in the standard model at SSC energies is briefly examined. Then we delve into the Higgs sector, with an introduction to the neutral Higgs of the standard model together with its production cross-sections in various processes and the corresponding potential backgrounds. A similar, though briefer, discussion for a charged Higgs boson (outside the Standard Model) follows. The heart of the work on identifying and reconstructing the t and then the Higgs boson in the face of backgrounds is discussed. The problems with semileptonic decays, low energy jet fragments, mass resolution, and b-t discrimination all come to the fore. We have tried to make a serious step here towards a realistic assessment of the problems entailed in pulling a signal out of the background, including a rough simulation of calorimeter-detector properties. 25 references.

  10. Interaction Design Patterns For Multi-touch Tabletop Collaborative Games

    E-Print Network [OSTI]

    Goh, Wooi Boon

    the effectiveness of the proposed interaction designs in trials involving two groups of children with contrasting to be effective in soliciting collaborative play on interactive tabletops. Author Keywords Multi Nanyang Technological University Singapore 639798 aswbgoh@ntu.edu.sg Wei Shou School of Computer

  11. Towards Interactive Timing Analysis for Designing Reactive Systems

    E-Print Network [OSTI]

    Towards Interactive Timing Analysis for Designing Reactive Systems Insa Fuhrmann David Broman Steven Smyth Reinhard von Hanxleden Electrical Engineering and Computer Sciences University of California Interactive Timing Analysis for Designing Reactive Systems Insa Fuhrmann1 , David Broman2,3 , Steven Smyth1

  12. Ratchet transport of interacting particles A. D. Chepelianskii,1

    E-Print Network [OSTI]

    Shepelyansky, Dima

    Ratchet transport of interacting particles A. D. Chepelianskii,1 M. V. Entin,2 L. I. Magarill,2 September 2008; published 28 October 2008 We study analytically and numerically the ratchet transport. The ratchet flow is preserved in the limit of strong interactions and can become even stronger compared

  13. Anchored Interactive Learning Environments Department of Computer Science

    E-Print Network [OSTI]

    -based environments facilitate sustained learning by active learners. The design and implementation of Adventure-assisted instruction designed to facilitate generative and sustained learning in an interactive multi-media environmentAnchored Interactive Learning Environments Thad Crews Department of Computer Science Western

  14. Quantum Theory of Chiral Interactions in Cholesteric Liquid Crystals

    E-Print Network [OSTI]

    A. S. Issaenko; A. B. Harris; T. C. Lubensky

    1998-10-15T23:59:59.000Z

    We study the effective chiral interaction between molecules arising from quantum dispersion interactions within a model in which a) the dominant excited states of a molecule form a band whose width is small compared to the average excitation energy and b) biaxial orientational correlation between adjacent molecules can be neglected. Previous treatments of quantum chiral interactions were based on a multipole expansion of the intermolecular interaction. However, because real liquid crystals are composed of elongated molecules, we utilize an expansion in terms of only coordinates transverse to the long molecular axes. We identify two distinct physical limits depending on whether one or both of the interacting molecules are excited in the virtual state. When both molecules are excited, our results are similar to those found previously by van der Meer et al. Previously unidentified terms in which only one molecule is excited involve the interactions of local dipole moments, which exist even when the global dipole moment of the molecule vanishes. We present analytic and numerical results for helical molecules. Our results do not indicate whether the dominant chiral interaction in cholesterics results from quantum or from steric interactions.

  15. Obstacle Avoidance Control of Humanoid Robot Arm through Tactile Interaction

    E-Print Network [OSTI]

    Tachi, Susumu

    Obstacle Avoidance Control of Humanoid Robot Arm through Tactile Interaction Dzmitry Tsetserukou through tactile interaction. The implementation of the approach was realized on humanoid robot arm are detailed in the paper. The possible tasks of the robot with intelligent whole-arm obstacle avoidance

  16. Search for Non-Standard Interactions by atmospheric neutrino

    E-Print Network [OSTI]

    Shinya Fukasawa

    2014-05-19T23:59:59.000Z

    We investigate the effects of neutral current Non-Standard Interactions in propagation on atmospheric neutrino experiments such as Super-Kamiokande and Hyper-Kamiokande. With the ansatz where the parameters which have strong constraints from other experiments are neglected, we show how these experiments put constraints on the remaining parameters of the Non-Standard Interactions.

  17. An Environment for Creating Interactive Statistical Documents Samuel E. Buttrey

    E-Print Network [OSTI]

    Nolan, Deborah

    An Environment for Creating Interactive Statistical Documents Samuel E. Buttrey Deborah Nolan The spectacular growth and acceptance of the Web has made it a very attractive medium for interactive documents that is embedded within the reader's browser. In this presentation, we describe how we have created an environment

  18. Factors Contributing to Ideal Instructional Interactivity Michael Yacci

    E-Print Network [OSTI]

    Yacci, Michael

    Factors Contributing to Ideal Instructional Interactivity Michael Yacci Paul Hyman Information are the factors that contribute to "ideal" instructional interactivity? In this study, subjects observed different and paralanguage. Introduction The purpose of this project was to determine factors that contribute to an "ideal

  19. Testing hadronic-interaction packages at cosmic-ray energies

    SciTech Connect (OSTI)

    Canal, C. A. Garcia; Sciutto, S. J. [Departamento de Fisica, Universidad Nacional de La Plata, C.C. 67-1900 La Plata (Argentina); IFLP - CONICET, Universidad Nacional de La Plata, C.C. 67-1900 La Plata (Argentina); Tarutina, T. [Departamento de Fisica, Universidad Nacional de La Plata, C.C. 67-1900 La Plata (Argentina)

    2009-03-01T23:59:59.000Z

    A comparative analysis of the secondary particles output of the main hadronic interaction packages used in simulations of extensive air showers is presented. Special attention is given to the study of events with very energetic leading secondary particles, including diffractive interactions.

  20. The Combination of Competitive Evolution and an Interactive Environment

    E-Print Network [OSTI]

    Meeden, Lisa A.

    The Combination of Competitive Evolution and an Interactive Environment Julie Corder and Ross- ronment. We explore the combination of competitive evolution, and an interactive environment. A population, and potential remedies, are discussed. 1 Introduction In studying intelligence, the environment in which

  1. World Data Center for Human Interactions in the Environment

    E-Print Network [OSTI]

    Columbia University

    World Data Center for Human Interactions in the Environment The Role of Spatial Data Infrastructure Center for Human Interactions in the Environment Introduction · Objective: to document the impacts in the Environment The Underlying Question · Which of the observed changes across systems and geographic regions

  2. Dynamic Interactions of PV units in Low Volatge Distribution Systems

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    . Abstract--Photovoltaic (PV) units along with other distributed energy resources (DERs) are located close by minimizing the negative interactions. Index Terms--Photovoltaic, negative interactions, distribution systems different DERs may react negatively and degrade reliability. There are several different measures

  3. Planet-Star Plasma Interactions and Possible Radio Emission

    E-Print Network [OSTI]

    Demoulin, Pascal

    ? · Planetary radio emissions properties & energy source in Planet-Star plasma interactions · Scaling laws contraints on scaling laws & internal structure models Comparative magnetospheric physics (star-planet properties & energy source in Planet-Star plasma interactions · Scaling laws and Extrapolation to hot

  4. IPR: Automated Interaction Process Reconciliation Zongxia Du1

    E-Print Network [OSTI]

    Liu, Yunhao

    IPR: Automated Interaction Process Reconciliation Zongxia Du1 , Jinpeng Huai1 , Yunhao Liu2 reconciliation algorithm, called IPR (Interaction Process Reconciliation) based on Petri Net, which is able a prototype IPR server in our lab, and evaluate our design by comprehensive experiments. Results show that IPR

  5. Development of Human-Robot Interaction Systems for Humanoid Robots

    E-Print Network [OSTI]

    Maxwell, Bruce

    Development of Human-Robot Interaction Systems for Humanoid Robots Bruce A. Maxwell, Brian Leighton, Andrew Ramsay Colby College {bmaxwell,bmleight,acramsay}@colby.edu Abstract - Effective human-robot interaction is one of the primary challenges for humanoid robots. Sources of uncertainty, such as robot motion

  6. Interactions Between Membrane Conductances Underlying Thalamocortical Slow-Wave Oscillations

    E-Print Network [OSTI]

    Destexhe, Alain

    or oscillations can be explained by interactions between calcium- and voltage-dependent channels. At the networkInteractions Between Membrane Conductances Underlying Thalamocortical Slow-Wave Oscillations A: Oscillations and Bursts Emerging From the Interplay of Intrinsic Conductances in Single Neurons 1404 A

  7. Dynamic Power Optimization Targeting User Delays in Interactive Systems

    E-Print Network [OSTI]

    Zhong, Lin

    }@princeton.edu Abstract-- Power has become a major concern for mobile computing systems such as laptops and handhelds, on which a significant fraction of software usage is interactive instead of compute-intensive. For interactive systems, an analysis shows that over 90% of system energy and time is spent waiting for user input

  8. Eye-Gaze Interaction for Mobile Phones Heiko Drewes

    E-Print Network [OSTI]

    Eye-Gaze Interaction for Mobile Phones Heiko Drewes Media Informatics Group Amalienstr. 17, 80333 the use of eye-gaze tracking technology for mobile phones. In particular we investigate how gaze interaction can be used to control applications on handheld devices. In contrast to eye-tracking systems

  9. High performance distributed simulation for interactive simulated vascular reconstruction

    E-Print Network [OSTI]

    Amsterdam, Universiteit van

    performance. 1 Introduction Interactive simulation environments are dynamic systems that combine simula- tion.1 Performance of interactive simulation environments The most important factor in the performance of a dynamic dynamic simulation environment. 1 1 2 2 3 visualization rendering simulation time rendering delay

  10. Three Environmental Discourses in Human-Computer Interaction

    E-Print Network [OSTI]

    O'Brien, James F.

    Three Environmental Discourses in Human-Computer Interaction Abstract A review of the past decade of human-computer interaction relating to environmental issues identifies three discourses whose, environmentalism, nature, design, discourse analysis ACM Classification Keywords H5.m. Information interfaces

  11. Enhancing Physicality in Touch Interaction with Programmable Friction

    E-Print Network [OSTI]

    Levesque, Vincent

    Enhancing Physicality in Touch Interaction with Programmable Friction Vincent LĂ©vesque1 , Louise possibilities and outcomes when touch interactions are enhanced with variable surface friction. In a series of four studies, we first confirm that variable friction gives significant performance advantages in low

  12. REVIEWS AND SYNTHESIS Biotic interactions and plant invasions

    E-Print Network [OSTI]

    Crews, Stephen

    as in abiotic conditions, may explain the demographic success of the introduced plant populations relative and competitors from their native ranges, and gain interactions with new species, under new abiotic conditions to conspecifics in their native range. Within invaded communities, the new interactions and conditions experienced

  13. Understanding Autonomous Interaction Mark d'Inverno1

    E-Print Network [OSTI]

    Luck, Michael

    Understanding Autonomous Interaction Mark d'Inverno1 and Michael Luck2 Abstract. Autonomy in a sophisticated world. Much work, however, has taken a very restricted view of what is entailed by autonomous, we argue that no facet of interaction can ever be guaranteed, and that if agents are to be autonomous

  14. Understanding the Interaction between Interests, Conversations and Friendships in Facebook

    E-Print Network [OSTI]

    Understanding the Interaction between Interests, Conversations and Friendships in Facebook Qirong the Interaction between Interests, Conversations and Friendships in Facebook Qirong Ho Rong Yan Rajat Raina Eric P 15213 Facebook, 10 Hacker Way, Menlo Park CA 94025 Abstract In this paper, we explore salient questions

  15. Paper #32 1 Social Context: Supporting Interaction Awareness

    E-Print Network [OSTI]

    Han, Jun

    environments, certain entities (or actors) often need to interact with each other in achieving a joint goal to adapt to changes in the operating environment and user requirements. In these early days of ubiquitousPaper #32 1 Social Context: Supporting Interaction Awareness in Ubiquitous Environments Minh H

  16. Aquatic Ecology Aquatic ecology group studies ecological interactions

    E-Print Network [OSTI]

    Aquatic Ecology Aquatic ecology group studies ecological interactions between biota and their environment in freshwater and marine ecosystems. The group focuses particularly on the ecological interactions and their underlying ecological processes necessary to sustain ecosystem structure and function in their natural state

  17. Interactive Control of Nonlinear Projection for Complex Animated Scenes

    E-Print Network [OSTI]

    Toronto, University of

    . This thesis presents techniques for creating interactive nonlinear projections of complex scene geometryInteractive Control of Nonlinear Projection for Complex Animated Scenes by Patrick Coleman A thesis of Nonlinear Projection for Complex Animated Scenes Patrick Coleman Master of Science Graduate Department

  18. Interactive Robots as Social Partners and Peer Tutors for

    E-Print Network [OSTI]

    Kanda, Takayuki

    and Communication Laboratories at ATR, Kyoto, Japan. D o N ot C opy #12;ABSTRACT Robots increasingly have to the Design of Human­Robot Interaction 5.4. Limitations 6. CONCLUSIONS D o N ot C opy #12;ter 1 week and afterInteractive Robots as Social Partners and Peer Tutors for Children: A Field Trial Takayuki Kanda

  19. Tracking Interacting People Stephen J. McKenna

    E-Print Network [OSTI]

    Duric, Zoran

    people move in groups or interact with other peo- ple cause considerable difficulty to many trackingTracking Interacting People Stephen J. McKenna Department of Applied Computing University of Dundee, wechsler @cs.gmu.edu Abstract A computer vision system for tracking multiple people in relatively

  20. Pet Video Chat: Monitoring and Interacting with Dogs over Distance

    E-Print Network [OSTI]

    Golbeck, Jennifer

    Pet Video Chat: Monitoring and Interacting with Dogs over Distance Abstract Companies are now making video-communication systems that allow pet owners to see, and, in some cases, even interact with their pets when they are separated by distance. Such `doggie cams' show promise, yet it is not clear how pet

  1. Research article Comprehensive curation and analysis of global interaction

    E-Print Network [OSTI]

    function has been enabled by high-throughput (HTP) methods for detection of genetic and protein interactions. Sparse coverage in HTP datasets may, however, distort network properties and confound predictions publications. This literature-curated (LC) dataset contains 33,311 interactions, on the order of all extant HTP

  2. Interactive Rendering of Trees with Shading and Shadows

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Interactive Rendering of Trees with Shading and Shadows Alexandre Meyer Fabrice Neyret Pierre Abstract. The goal of this paper is the interactive rendering of 3D trees covering a landscape of view and light directions. We associate a BT for each level of the hierarchy. When rendering

  3. RenderAnts: Interactive Reyes Rendering on GPUs Minmin Gong

    E-Print Network [OSTI]

    Zhou, Kun

    RenderAnts: Interactive Reyes Rendering on GPUs Kun Zhou Qiming Hou Zhong Ren Minmin Gong Xin Sun Baining Guo Zhejiang University Tsinghua University Microsoft Research Asia Abstract We present RenderAnts, the first system that enables interactive Reyes rendering on GPUs. Taking RenderMan scenes and shaders

  4. Blue Lacuna: Lessons Learned Writing the World's Longest Interactive Fiction

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    1 Blue Lacuna: Lessons Learned Writing the World's Longest Interactive Fiction Aaron A. Reed Abstract--Blue Lacuna is a new long form interactive fic- tion comprising nearly 400,000 words of prose play time of fifteen to twenty hours. In development between 2006 and 2009, Blue Lacuna fea- tures

  5. BLUE: An Interactive Visualization System for Categorical Data Technical Note

    E-Print Network [OSTI]

    Kerbs, R. W.

    BLUE: An Interactive Visualization System for Categorical Data Technical Note Robert W. Kerbs. This paper introduces a prototype data visualization system, BLUE, to help induce meaningful decision trees from databases that contain primarily categorical attributes. BLUE is an interactive model creation

  6. LASER POINTERS AS INTERACTION DEVICES FOR COLLABORATIVE PERVASIVE COMPUTING

    E-Print Network [OSTI]

    StĂĽrzlinger, Wolfgang

    LASER POINTERS AS INTERACTION DEVICES FOR COLLABORATIVE PERVASIVE COMPUTING Andriy Pavlovych1 environments. The system uses laser pointers as interaction devices and employs a video camera to detect where each laser pointer is pointing. Time-division multiplexing together with a wireless link affords

  7. Electron-wall interaction in Hall thrustersa... Y. Raitsesb

    E-Print Network [OSTI]

    Electron-wall interaction in Hall thrustersa... Y. Raitsesb and D. Staack Princeton Plasma Physics; accepted 22 February 2005; published online 2 May 2005 Electron-wall interaction effects in Hall thrusters this threshold, the electron energy gain is constant in the acceleration region and therefore, secondary electron

  8. Nonlinear interaction of meta-atoms through optical coupling

    SciTech Connect (OSTI)

    Slobozhanyuk, A. P.; Kapitanova, P. V.; Filonov, D. S.; Belov, P. A. [National Research University of Information Technologies, Mechanics and Optics (ITMO), St. Petersburg 197101 (Russian Federation)] [National Research University of Information Technologies, Mechanics and Optics (ITMO), St. Petersburg 197101 (Russian Federation); Powell, D. A. [Nonlinear Physics Centre and Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Australian National University, Canberra, ACT 0200 (Australia)] [Nonlinear Physics Centre and Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Australian National University, Canberra, ACT 0200 (Australia); Shadrivov, I. V.; Kivshar, Yu. S. [National Research University of Information Technologies, Mechanics and Optics (ITMO), St. Petersburg 197101 (Russian Federation) [National Research University of Information Technologies, Mechanics and Optics (ITMO), St. Petersburg 197101 (Russian Federation); Nonlinear Physics Centre and Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Australian National University, Canberra, ACT 0200 (Australia); Lapine, M., E-mail: mlapine@physics.usyd.edu.au [National Research University of Information Technologies, Mechanics and Optics (ITMO), St. Petersburg 197101 (Russian Federation); Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, New South Wales 2006 (Australia); McPhedran, R. C. [Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, New South Wales 2006 (Australia)] [Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, New South Wales 2006 (Australia)

    2014-01-06T23:59:59.000Z

    We propose and experimentally demonstrate a multi-frequency nonlinear coupling mechanism between split-ring resonators. We engineer the coupling between two microwave resonators through optical interaction, whilst suppressing the direct electromagnetic coupling. This allows for a power-dependent interaction between the otherwise independent resonators, opening interesting opportunities to address applications in signal processing, filtering, directional coupling, and electromagnetic compatibility.

  9. The Solar Wind and Its Interaction with the Interstellar Medium

    E-Print Network [OSTI]

    Richardson, John

    outward through the solar system and interacts with the interstellar neutrals which slow and heat the wind. The arrows in the top panel show the flow of the solar wind and the interstellar J. D. Richardson CenterThe Solar Wind and Its Interaction with the Interstellar Medium John D. Richardson Abstract

  10. Time-Based Behaviors at an Interactive Science Museum

    E-Print Network [OSTI]

    Sandifer, Cody

    Time-Based Behaviors at an Interactive Science Museum: Exploring the Differences between Weekday-based learning-associated visitor behaviors at interactive science museums differ across weekend/weekday groups and in the science museum as a whole; (b) there was a separation of weekday visitors into two distinct groups: family

  11. A lattice model to simulate ice-structure interaction

    E-Print Network [OSTI]

    Boyer, Edmond

    A lattice model to simulate ice-structure interaction O. Dorival, A. V. Metrikine, A. Simone of Technology P. O. Box 5048, 2600 GA Delft, Netherlands Abstract The interaction between ice sheets, due to the complexity of ice material the use of small-scale experiments is problematic if one aims

  12. ENSOULMENT AND SUSTAINABLE INTERACTION Eli Blevis and Erik Stolterman

    E-Print Network [OSTI]

    Blevis, Eli

    1 ENSOULMENT AND SUSTAINABLE INTERACTION DESIGN Eli BlevisÂą and Erik StoltermanÂą ÂąSchool within Sustainable Interaction Design (SID). The design-theoretic origins and implications are discussed The emergent trend under study is the linking of concerns about sustainability-- environmental sustainability

  13. Size-exclusion chromatography system for macromolecular interaction analysis

    DOE Patents [OSTI]

    Stevens, Fred J. (Downers Grove, IL)

    1988-01-01T23:59:59.000Z

    A low pressure, microcomputer controlled system employing high performance liquid chromatography (HPLC) allows for precise analysis of the interaction of two reversibly associating macromolecules such as proteins. Since a macromolecular complex migrates faster than its components during size-exclusion chromatography, the difference between the elution profile of a mixture of two macromolecules and the summation of the elution profiles of the two components provides a quantifiable indication of the degree of molecular interaction. This delta profile is used to qualitatively reveal the presence or absence of significant interaction or to rank the relative degree of interaction in comparing samples and, in combination with a computer simulation, is further used to quantify the magnitude of the interaction in an arrangement wherein a microcomputer is coupled to analytical instrumentation in a novel manner.

  14. E-Print Network 3.0 - activated killer cells Sample Search Results

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

    Crustacea over a muddy shelf in the Gulf of Saint... , IN THE PRESENCE OF KILLER WHALE, ORCNUS ORCA Detailed observations of baleen whales attacked by killer whales... )....

  15. E-Print Network 3.0 - activated transfected killer Sample Search...

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

    Crustacea over a muddy shelf in the Gulf of Saint... , IN THE PRESENCE OF KILLER WHALE, ORCNUS ORCA Detailed observations of baleen whales attacked by killer whales... )....

  16. E-Print Network 3.0 - adherent lymphokine-activated killer Sample...

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

    M. L. GALLAGHER, AND J. H. RITTENBERG. Summary: , IN THE PRESENCE OF KILLER WHALE, ORCNUS ORCA Detailed observations of baleen whales attacked by killer whales... )....

  17. E-Print Network 3.0 - activated lymphocyte killer Sample Search...

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

    Crustacea over a muddy shelf in the Gulf of Saint... , IN THE PRESENCE OF KILLER WHALE, ORCNUS ORCA Detailed observations of baleen whales attacked by killer whales... )....

  18. Mobilizing Across Borders: The Case of the Laguna San Ignacio Saltworks Project

    E-Print Network [OSTI]

    Spalding, Mark J.

    2006-01-01T23:59:59.000Z

    to Laguna San Ignacio ecotourism camp during whale watchto Laguna San Ignacio ecotourism camp during whale watchto Laguna San Ignacio ecotourism camp during whale watch

  19. Duopoly Interaction and Expected Price for Local Access Running Heading: Duopoly Interaction and Expected Price for Local Access

    E-Print Network [OSTI]

    1 Duopoly Interaction and Expected Price for Local Access Running Heading: Duopoly Interaction and Expected Price for Local Access Judith A. Molka-Danielsen Department of Informatics Molde College P.O. Box. Competition brings pricing flexibility, so that one could expect implicit subsidies, like geographic averaging

  20. Ris Energy Report 4 Interaction between supply and end-use 4 8 Interaction between supply and end-use

    E-Print Network [OSTI]

    of the wholesale power markets has intro- duced market-based pricing for the marginal electricity supply. PricesRisø Energy Report 4 Interaction between supply and end-use 4 8 Interaction between supply and end and consumption is a market issue, in the sense that the market balance is set some time before the physical

  1. Heterogeneous Chemistry: Understanding Aerosol/Oxidant Interactions

    SciTech Connect (OSTI)

    Joyce E. Penner

    2005-03-14T23:59:59.000Z

    Global radiative forcing of nitrate and ammonium aerosols has mostly been estimated from aerosol concentrations calculated at thermodynamic equilibrium or using approximate treatments for their uptake by aerosols. In this study, a more accurate hybrid dynamical approach (DYN) was used to simulate the uptake of nitrate and ammonium by aerosols and the interaction with tropospheric reactive nitrogen chemistry in a three-dimensional global aerosol and chemistry model, IMPACT, which also treats sulfate, sea salt and mineral dust aerosol. 43% of the global annual average nitrate aerosol burden, 0.16 TgN, and 92% of the global annual average ammonium aerosol burden, 0.29 TgN, exist in the fine mode (D<1.25 {micro}m) that scatters most efficiently. Results from an equilibrium calculation differ significantly from those of DYN since the fraction of fine-mode nitrate to total nitrate (gas plus aerosol) is 9.8%, compared to 13% in DYN. Our results suggest that the estimates of aerosol forcing from equilibrium concentrations will be underestimated. We also show that two common approaches used to treat nitrate and ammonium in aerosol in global models, including the first-order gas-to-particle approximation based on uptake coefficients (UPTAKE) and a hybrid method that combines the former with an equilibrium model (HYB), significantly overpredict the nitrate uptake by aerosols especially that by coarse particles, resulting in total nitrate aerosol burdens higher than that in DYN by +106% and +47%, respectively. Thus, nitrate aerosol in the coarse mode calculated by HYB is 0.18 Tg N, a factor of 2 more than that in DYN (0.086 Tg N). Excessive formation of the coarse-mode nitrate in HYB leads to near surface nitrate concentrations in the fine mode lower than that in DYN by up to 50% over continents. In addition, near-surface HNO{sub 3} and NO{sub x} concentrations are underpredicted by HYB by up to 90% and 5%, respectively. UPTAKE overpredicts the NO{sub x} burden by 56% and near-surface NO{sub x} concentrations by a factor of 2-5. These results suggest the importance of using the more accurate hybrid dynamical method in the estimates of both aerosol forcing and tropospheric ozone chemistry.

  2. Dependence of Repeated Interaction Asymptotic States on Environment

    E-Print Network [OSTI]

    Mark D Penney

    2011-05-30T23:59:59.000Z

    Consider a quantum system $\\cS$ that interacts sequentially with a chain (environment) of identical probes ${\\cal C} = \\cP+\\cP+...$, with each interaction governed by a fixed interaction time $\\tau$ and operator $V$. It is known how to construct the asymptotic state (large times) if the initial states of $\\cP$ belong to a class of so-called reference states. We generalize the analysis to a broader class of initial states, including the physically important situation of pure states. This is done by a simple modification to the effective dynamics generator.

  3. Interaction-free evolving states of a bipartite system

    E-Print Network [OSTI]

    A. Napoli; M. Guccione; A. Messina; Chru?ci?ski

    2014-02-26T23:59:59.000Z

    We show that two interacting physical systems may admit entangled pure or non separable mixed states evolving in time as if the mutual interaction hamiltonian were absent. In this paper we define these states Interaction Free Evolving (IFE) states and characterize their existence for a generic binary system described by a time independent Hamiltonian. A comparison between IFE subspace and the decoherence free subspace is reported. The set of all pure IFE states is explicitly constructed for a non homogeneous spin star system model.

  4. Conformation changes and protein folding induced by \\phi^4 interaction

    E-Print Network [OSTI]

    Januar, M; Handoko, L T; 10.1142/9789814335614_0047

    2011-01-01T23:59:59.000Z

    A model to describe the mechanism of conformational dynamics in protein based on matter interactions using lagrangian approach and imposing certain symmetry breaking is proposed. Both conformation changes of proteins and the injected non-linear sources are represented by the bosonic lagrangian with an additional \\phi^4 interaction for the sources. In the model the spring tension of protein representing the internal hydrogen bonds is realized as the interactions between individual amino acids and nonlinear sources. The folding pathway is determined by the strength of nonlinear sources that propagate through the protein backbone. It is also shown that the model reproduces the results in some previous works.

  5. Importance of repulsive interactions for the equation of state and other properties of strongly interacting matter

    E-Print Network [OSTI]

    V. V. Begun

    2014-11-13T23:59:59.000Z

    We illustrate the role of repulsive interactions in a hadron-resonance gas at freeze-out and in a gas of quark-gluon bags. Taking into account non-zero size of particles in hadron gas leads to a significant decrease and shift of the net-baryon density maximum. The transition point from baryon to meson dominated matter depends on the difference between baryon and meson radii. We also show that depending on the properties of the quark-gluon bags one may obtain any type of the phase transition from hadron gas to quark-gluon plasma: the first or second order, as well as four types of the crossover.

  6. Interactions Between Energy Security and Climate Change: A Focus...

    Open Energy Info (EERE)

    - Energy Security Resource Type: Publications Website: www.sciencedirect.comscience?obMImg&imagekeyB6V2W-52SN633-5-1&cd Cost: Free Interactions Between Energy...

  7. Turbulence-Flame Interactions in Type Ia Supernovae

    E-Print Network [OSTI]

    Aspden, Andrew J; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 50A-1148, Berkeley, CA 94720 (Authors 1, 2 & 3); Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA 95064 (Author 4); Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794 (Author 5)

    2008-01-01T23:59:59.000Z

    Interactions in Type Ia Supernovae A. J. Aspden 1 , J. B.involved in type Ia supernovae (SN Ia) requires the use of ?generated by RT in type Ia supernovae should obey Bolgiano-

  8. Classification of Interacting Electronic Topological Insulators in Three Dimensions

    E-Print Network [OSTI]

    Wang, Chong

    A fundamental open problem in condensed-matter physics is how the dichotomy between conventional and topological band insulators is modified in the presence of strong electron interactions. We show that there are six ...

  9. Interacting fermionic topological insulators/superconductors in three dimensions

    E-Print Network [OSTI]

    Wang, Chong

    Symmetry protected topological (SPT) phases are a minimal generalization of the concept of topological insulators to interacting systems. In this paper, we describe the classification and properties of such phases for ...

  10. Kobayashi-Kondo-Maskawa-'t Hooft interaction in pentaquarks

    SciTech Connect (OSTI)

    Dmitrasinovic, V. [Vinca Institute of Nuclear Services, P.O. Box 522, 11001 Belgrade (Serbia and Montenegro)

    2005-05-01T23:59:59.000Z

    We review critically the predictions of pentaquarks in the quark model, in particular, those based on the flavor-spin-dependent (Glozman-Riska) hyperfine interaction and the color-spin (one-gluon-exchange Fermi-Breit) one. We include the antiquark interactions and find that: (1) the exotic SU(3) multiplets are not substantially affected in the flavor-spin model, whereas some of the nonexotic multiplets are; and (2) the variational upper bound on the {xi}{sup --}-{theta}{sup +} mass difference in the color-spin hyperfine interaction model is substantially reduced. This leads us to the U{sub A}(1) symmetry breaking Kobayashi-Kondo-Maskawa-'tHooft interaction. We discuss some of its phenomenological consequences for pentaquarks.

  11. The dynamics of interleukin-8 and its interaction with human...

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

    Kendrick A, M Holliday, NG Isern, F Zhang, C Camilloni, C Huynh, M Vendruscolo, GS Armstrong, and EZ Eisenmesser.2014."The dynamics of interleukin-8 and its interaction with...

  12. Symmetric Achromatic Low-Beta Collider Interaction Region Design Concept

    SciTech Connect (OSTI)

    Morozov, Vasiliy S. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Derbenev, Yaroslav S. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Lin, Fanglei [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Johnson, Rolland P. [Muons, Inc., Batavia, IL (United States)

    2013-01-01T23:59:59.000Z

    We present a new symmetry-based concept for an achromatic low-beta collider interaction region design. A specially-designed symmetric Chromaticity Compensation Block (CCB) induces an angle spread in the passing beam such that it cancels the chromatic kick of the final focusing quadrupoles. Two such CCB?s placed symmetrically around an interaction point allow simultaneous compensation of the 1st-order chromaticities and chromatic beam smear at the IP without inducing significant 2nd-order aberrations. We first develop an analytic description of this approach and explicitly formulate 2nd-order aberration compensation conditions at the interaction point. The concept is next applied to develop an interaction region design for the ion collider ring of an electron-ion collider. We numerically evaluate performance of the design in terms of momentum acceptance and dynamic aperture. The advantages of the new concept are illustrated by comparing it to the conventional distributed-sextupole chromaticity compensation scheme.

  13. Simulation of Hydraulic Fractures and their Interactions with Natural Fractures

    E-Print Network [OSTI]

    Sesetty, Varahanaresh

    2012-10-19T23:59:59.000Z

    Modeling the stimulated reservoir volume during hydraulic fracturing is important to geothermal and petroleum reservoir stimulation. The interaction between a hydraulic fracture and pre-existing natural fractures exerts significant control...

  14. A monopole-optimized effective interaction for tin isotopes

    E-Print Network [OSTI]

    Chong Qi; Z. X. Xu

    2012-10-09T23:59:59.000Z

    We present a systematic configuration-interaction shell model calculation on the structure of light tin isotopes with a new global optimized effective interaction. The starting point of the calculation is the realistic CD-Bonn nucleon-nucleon potential. The unknown single-particle energies of the $1d_{3/2}$, $2s_{1/2}$ and $0h_{11/2}$ orbitals and the T=1 monopole interactions are determined by fitting to the binding energies of 157 low-lying yrast states in $^{102-132}$Sn. We apply the Hamiltonian to analyze the origin of the spin inversion between $^{101}$Sn and $^{103}$Sn that was observed recently and to explore the possible contribution from interaction terms beyond the normal pairing.

  15. Polyelectrolyte multilayer growth factor delivery : mediating tissue/device interactions

    E-Print Network [OSTI]

    Macdonald, Mara Lee

    2010-01-01T23:59:59.000Z

    This thesis focuses on the use of ultrathin therapeutic protein delivery films to control host tissue/medical device implant interactions, thereby reducing complications that lead to implant failure. The Layer by Layer ...

  16. Expression of Interest: The Atmospheric Neutrino Neutron Interaction Experiment (ANNIE)

    E-Print Network [OSTI]

    I. Anghel; J. F. Beacom; M. Bergevin; G. Davies; F. Di Lodovico; A. Elagin; H. Frisch; R. Hill; G. Jocher; T. Katori; J. Learned; R. Northrop; C. Pilcher; E. Ramberg; M. C. Sanchez; M. Smy; H. Sobel; R. Svoboda; S. Usman; M. Vagins; G. Varner; R. Wagner; M. Wetstein; L. Winslow; M. Yeh

    2014-02-26T23:59:59.000Z

    Neutron tagging in Gadolinium-doped water may play a significant role in reducing backgrounds from atmospheric neutrinos in next generation proton-decay searches using megaton-scale Water Cherenkov detectors. Similar techniques might also be useful in the detection of supernova neutrinos. Accurate determination of neutron tagging efficiencies will require a detailed understanding of the number of neutrons produced by neutrino interactions in water as a function of momentum transferred. We propose the Atmospheric Neutrino Neutron Interaction Experiment (ANNIE), designed to measure the neutron yield of atmospheric neutrino interactions in gadolinium-doped water. An innovative aspect of the ANNIE design is the use of precision timing to localize interaction vertices in the small fiducial volume of the detector. We propose to achieve this by using early production of LAPPDs (Large Area Picosecond Photodetectors). This experiment will be a first application of these devices demonstrating their feasibility for Water Cherenkov neutrino detectors.

  17. On the interaction of mesoscopic magnetic textures with superconductors

    E-Print Network [OSTI]

    Kayali, Mohammad Amin

    2001-01-01T23:59:59.000Z

    In this thesis, we studied the problem of the interaction between a superconducting thin film and a two-dimensional magnetization distribution. We considered the magnetization such that it depends on r, the radius, only. We gave a general formalism...

  18. Investigation of Soil Moisture - Vegetation Interactions in Oklahoma

    E-Print Network [OSTI]

    Ford, Trenton W.

    2013-03-06T23:59:59.000Z

    , but not well understood climate factor. This study examines soil moisture-vegetation health interactions using both in situ observations and land surface model simulations. For the observational study, soil moisture is taken from 20 in situ Oklahoma Mesonet...

  19. ISpace: Interactive Volume Data Classification Techniques Using Independent Component Analysis

    E-Print Network [OSTI]

    Ma, Kwan-Liu

    , multivariate data analysis, multimodality data, scientific visualization, seg- mentation, volume rendering 1ISpace: Interactive Volume Data Classification Techniques Using Independent Component Analysis, which uses Independent Component Analysis (ICA) and a multi- dimensional histogram of the volume data

  20. Nuclear Constraints on the Weak Nucleon-Nucleon Interaction

    E-Print Network [OSTI]

    W. C. Haxton

    2008-02-21T23:59:59.000Z

    I discuss the current status of efforts to constrain the strangeness-conserving weak hadronic interaction, which can be isolated in nuclear systems because of the associated parity violation.

  1. De-noised coding by lateral interactions Cornelius Weber

    E-Print Network [OSTI]

    Weber, Cornelius

    De-noised coding by lateral interactions Cornelius Weber Brain and Cognitive Science Dept(8):740-745 (1999). [2] C. Weber and K. Obermayer, Emergence of modularity within one sheet of intrinsically active

  2. NORTHWESTERN UNIVERSITY Network Arts: Defining Emotional Interaction in Media Arts

    E-Print Network [OSTI]

    expression in product design and software interaction. iii #12;Acknowledgements "Good communication. Congrats to Olga, J-Lo, Karen, and Caryn who successfully kept the NU administration at bay from

  3. Understanding new regimes for light-matter interactions

    E-Print Network [OSTI]

    Lee, Ka Yan Karen

    2011-01-01T23:59:59.000Z

    This thesis focuses on achieving new understanding of the principles and phenomena involved in the interaction of light with a variety of complicated material systems, including biomaterials and nanostructured materials. ...

  4. Atom-light interactions in ultracold anisotropic media

    E-Print Network [OSTI]

    Vengalattore, Mukund T., 1977-

    2005-01-01T23:59:59.000Z

    A series of studies on atom-light interactions in ultracold anisotropic media were conducted. Methods to trap ultracold neutral atoms in novel traps with widely tunable trap frequencies and anisotropies were investigated. ...

  5. Single-cell technologies for monitoring interactions between immune cells

    E-Print Network [OSTI]

    Yamanaka, Yvonne J. (Yvonne Joy)

    2014-01-01T23:59:59.000Z

    Immune cells participate in dynamic cellular interactions that play a critical role in the defense against pathogens and the destruction of malignant cells. The vast heterogeneity of immune cells motivates the study of ...

  6. Multimodal `Eyes-Free' Interaction Techniques for Wearable Devices

    E-Print Network [OSTI]

    Williamson, John

    ]. These can be obtrusive and hard to use in bright daylight, plus they occupy the users' visual attention [7 richer and more com- plex interactions with devices and services when mobile. POTENTIAL SOLUTIONS The solutions we are investigating u

  7. Multimodal Interaction and Proactive Computing Stephen A Brewster

    E-Print Network [OSTI]

    Williamson, John

    and interact with the systems they will carry and have access to when they are out in the field. One solution and hard to use in bright daylight, plus they occupy the users' visual atten- tion [11] when it may

  8. Letter of Intent: The Atmospheric Neutrino Neutron Interaction Experiment (ANNIE)

    E-Print Network [OSTI]

    Anghel, I; Bergevin, M; Blanco, C; Catano-Mur, E; Di Lodovico, F; Elagin, A; Frisch, H; Griskevich, J; Hill, R; Jocher, G; Katori, T; Krennrich, F; Learned, J; Malek, M; Northrop, R; Pilcher, C; Ramberg, E; Repond, J; Sacco, R; Sanchez, M C; Smy, M; Sobel, H; Svoboda, R; Usman, S M; Vagins, M; Varner, G; Wagner, R; Weinstein, A; Wetstein, M; Winslow, L; Xia, L; Yeh, M

    2015-01-01T23:59:59.000Z

    Neutron tagging in Gadolinium-doped water may play a significant role in reducing backgrounds from atmospheric neutrinos in next generation proton-decay searches using megaton-scale Water Cherenkov detectors. Similar techniques might also be useful in the detection of supernova neutrinos. Accurate determination of neutron tagging efficiencies will require a detailed understanding of the number of neutrons produced by neutrino interactions in water as a function of momentum transferred. We propose the Atmospheric Neutrino Neutron Interaction Experiment (ANNIE), designed to measure the neutron yield of atmospheric neutrino interactions in gadolinium-doped water. An innovative aspect of the ANNIE design is the use of precision timing to localize interaction vertices in the small fiducial volume of the detector. We propose to achieve this by using early production of LAPPDs (Large Area Picosecond Photodetectors). This experiment will be a first application of these devices demonstrating their feasibility for Wate...

  9. Novel polypyrrole derivatives to enhance conductive polymer-tissue interactions

    E-Print Network [OSTI]

    George, Paul M. (Paul Matthew)

    2005-01-01T23:59:59.000Z

    Developing materials that interact effectively with surrounding tissue is a major obstacle in sensor and drug delivery research. The body's natural immune response prevents foreign objects from easily integrating with an ...

  10. Interacting Dark Energy in Ho?ava-Lifshitz Cosmology

    E-Print Network [OSTI]

    M R Setare

    2009-12-02T23:59:59.000Z

    In the usual Ho\\v{r}ava-Lifshitz cosmological models, the scalar field is responsible for dark matter. Using an additional scalar field, Saridakis \\cite{sari} has formulated Ho\\v{r}ava-Lifshitz cosmology with an effective dark energy sector. In the paper \\cite{sari} the scalar fields do not interact with each other, here we extend this work to the interacting case, where matter scalar field $\\phi$ interact with dark energy scalar field $\\sigma$. We will show that in contrast with \\cite{sari}, where $\\sigma$-filed is absent, we can obtain $w_d ^{\\rm eff}dark energy presenting phantom behaviour. This behaviour is pure effect of the interaction.

  11. Discover protein sequence signatures from protein-protein interaction data

    E-Print Network [OSTI]

    Fang, Jianwen; Haasl, R. J.; Dong, Yinghua; Lushington, Gerald H.

    2005-11-23T23:59:59.000Z

    Background: The development of high-throughput technologies such as yeast two- hybrid systems and mass spectrometry technologies has made it possible to generate large protein-protein interaction ( PPI) datasets. Mining ...

  12. 22.54 Neutron Interactions and Applications, Spring 2002

    E-Print Network [OSTI]

    Yip, Sidney

    Comprehensive treatment of neutron interactions in condensed matter at energies from thermal to MeV, focusing on aspects most relevant to radiation therapy, industrial imaging, and materials research applications. Comparative ...

  13. 22.106 Neutron Interactions and Applications, Spring 2004

    E-Print Network [OSTI]

    Yip, Sidney

    Foundational study of the effects of single and multiple interactions on neutron distributions and their applications to problems across the Nuclear Engineering department - fission, fusion, and RST. Particle simulation ...

  14. 22.106 Neutron Interactions and Applications, Spring 2005

    E-Print Network [OSTI]

    Yip, Sidney

    This course is a foundational study of the effects of single and multiple interactions on neutron distributions and their applications to problems across the Nuclear Engineering department - fission, fusion, and RST. ...

  15. Interaction Support for Visual Comparison Inspired by Natural Behavior

    E-Print Network [OSTI]

    Tominski, Christian

    Forsell, and Jimmy Johansson Fig. 1. Folding interaction to reveal and relate information shown, e-mail: camilla.forsell@liu.se. · Jimmy Johansson is with Link¨oping University, e-mail: jimmy

  16. Interacting holographic dark energy model in non-flat universe

    E-Print Network [OSTI]

    M R Setare

    2006-10-14T23:59:59.000Z

    We employ the holographic model of interacting dark energy to obtain the equation of state for the holographic energy density in non-flat (closed) universe enclosed by the event horizon measured from the sphere of horizon named $L$.

  17. Eddy-mean flow interactions in western boundary current jets

    E-Print Network [OSTI]

    Waterman, Stephanie N

    2009-01-01T23:59:59.000Z

    This thesis examines the nature of eddy-mean flow interactions in western boundary current jets and recirculation gyre dynamics from both theoretical and observational perspectives. It includes theoretical studies of ...

  18. Quantum Chemistry of CO2 Interaction with Swelling Clays | netl...

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

    Quantum Chemistry of CO2 Interaction with Swelling Clays Sep 2014 Aug 2014 Jul 2014 June 2014 May 2014 Apr 2014 Mar 2014 Feb 2014 Jan 2014 Dec 2013 Nov 2013 Oct 2013 Sep 2013 Aug...

  19. Arterial LDL Transport Incorporating Fluid Solid Interactions, Hyperthermia, and Atherosclerosis

    E-Print Network [OSTI]

    Chung, Stephen

    2013-01-01T23:59:59.000Z

    of Mechanical Engineers, Fluids Engineering Division (FED, Bio-Medical Fluids Engineering 21, 8. Buckwalter, J.Fluid Solid Interactions, Hyperthermia, and Atherosclerosis by Stephen Chung Doctor of Philosophy, Graduate Program in Mechanical Engineering

  20. Creating Automated Interactive Video Playback for Studies of Animal Communications

    E-Print Network [OSTI]

    Butkowski, Trisha

    2010-01-16T23:59:59.000Z

    Video playback is a technique used to study the visual communication and behaviors of animals. While video playback is a useful tool, most experiments lack the ability for the visual stimulus to interact with the live animal. The limited number...

  1. alignment dipolar interactions: Topics by E-print Network

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

    Sabine H. L. Klapp 2012-10-12 3 Critical Temperature of Weakly Interacting Dipolar Condensates Konstantin Glaum,1 Physics Websites Summary: the symmetry axes of the trap and the...

  2. Interactive Simulation and Visualization Christopher Johnson, Steven Parker, Charles Hansen,

    E-Print Network [OSTI]

    Parker, Steven G.

    Science University of Utah, Salt Lake City, UT 84112. E­Mail: crj,sparker,hansen,gk,yarden@cs.utah.edu Web1 Interactive Simulation and Visualization Christopher Johnson, Steven Parker, Charles Hansen

  3. Interactive Simulation and Visualization Christopher Johnson, Steven Parker, Charles Hansen,

    E-Print Network [OSTI]

    Parker, Steven G.

    Science University of Utah, Salt Lake City, UT 84112. E-Mail: crj,sparker,hansen,gk,yarden@cs.utah.edu Web1 Interactive Simulation and Visualization Christopher Johnson, Steven Parker, Charles Hansen

  4. Designing Everyday Technologies with Human-Power and Interactive Microgeneration

    E-Print Network [OSTI]

    Paulos, Eric

    Paulos Human-Computer Interaction Institute, Carnegie Mellon 5000 Forbes Avenue, Pittsburgh, PA, USA on electricity we importantly also consider non-electrical and manual technologies em- ploying "human power" (e technologies, inc

  5. Toward an intelligent multimodal interface for natural interaction

    E-Print Network [OSTI]

    Yin, Ying Ph. D. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    Advances in technology are enabling novel approaches to human-computer interaction (HCI) in a wide variety of devices and settings (e.g., the Microsoft® Surface, the Nintendo® Wii, iPhone®, etc.). While many of these devices ...

  6. Interaction Diagrams for Ambient and Heated Concrete Sections 

    E-Print Network [OSTI]

    Law, Angus; Gillie, Martin

    2010-01-01T23:59:59.000Z

    Bending moment axial force interaction diagrams are a commonly used tool in any design office. When designing for fire conditions, the large axial forces which develop place an additional importance on the consideration ...

  7. 5-1291-01-P2 INTERACTIVE GRAPHICS INTERSECTION DESIGN

    E-Print Network [OSTI]

    Texas at Austin, University of

    5-1291-01-P2 INTERACTIVE GRAPHICS INTERSECTION DESIGN SYSTEM (IGIDS) USERS MANUAL: UPDATE Graphics Intersection Design System (IGIDS) OCTOBER 2001 Performing Organization: Center for Transportation, graphics, design, IGIDS, user's manual, MicroStation, geometric design, environmental, hydraulics, right

  8. Nuclear binding energies and empirical proton-neutron interactions

    SciTech Connect (OSTI)

    Fu, G. J. [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Jiang Hui [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); School of Arts and Science, Shanghai Maritime University, Shanghai 200135 (China); Zhao, Y. M. [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 (China); CCAST, World Laboratory, Post Office Box 8730, Beijing 100080 (China); Pittel, S. [Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States); Arima, A. [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Science Museum, Japan Science Foundation, 2-1 Kitanomaru-koen, Chiyoda-ku, Tokyo 102-0091 (Japan)

    2010-09-15T23:59:59.000Z

    By using an exponential function to simulate the residual proton-neutron interaction between valence nucleons, we derive a new set of local mass formulas that are competitive with the Garvey-Kelson mass relations for relating neighboring nuclear masses.

  9. Constrained Density-Functional Theory--Configuration Interaction

    E-Print Network [OSTI]

    Kaduk, Benjamin James

    2012-01-01T23:59:59.000Z

    In this thesis, I implemented a method for performing electronic structure calculations, "Constrained Density Functional Theory-- Configuration Interaction" (CDFT-CI), which builds upon the computational strengths of Density ...

  10. The Electron-Phonon Interaction as Studied by Photoelectron Spectroscopy

    SciTech Connect (OSTI)

    D.W. Lynch

    2004-09-30T23:59:59.000Z

    With recent advances in energy and angle resolution, the effects of electron-phonon interactions are manifest in many valence-band photoelectron spectra (PES) for states near the Fermi level in metals.

  11. WebThumb: Interaction Techniques for Small-Screen Browsers

    E-Print Network [OSTI]

    Wobbrock, Jacob O.

    205 WebThumb: Interaction Techniques for Small-Screen Browsers Jacob O. Wobbrock* , Jodi Forlizzi are not made or distributed for profit or commercial advantage and that copies bear this notice and the full

  12. Ground states of lattice gases with ``almost'' convex repulsive interactions

    E-Print Network [OSTI]

    the feature known as the complete devil's staircase. KEY WORDS: Classical lattice­gas models; ground states; nonconvex interactions; most homogeneous configurations; devil's staircase. \\Lambda Pl. Maksa Borna 9, 50

  13. Effects of interaction in Bose-Einstein condensates

    E-Print Network [OSTI]

    Xu, Kaiwen

    2006-01-01T23:59:59.000Z

    This thesis discusses a series of studies that investigate the effects of interaction - essentially the s-wave scattering - in the various properties of Bose-Einstein condensates (BEC). The phonon wavefunction in a BEC was ...

  14. Spinon-phonon interaction in algebraic spin liquids

    E-Print Network [OSTI]

    Serbyn, Maksym

    Motivated by a search for experimental probes to access the physics of fractionalized excitations called spinons in spin liquids, we study the interaction of spinons with lattice vibrations. We consider the case of algebraic ...

  15. Interactive QMESH on VAX at Sandia National Laboratories, Albuquerque

    SciTech Connect (OSTI)

    Mayes, R.L.

    1982-08-01T23:59:59.000Z

    The two-dimensional mesh generating program, QMESH, has been adapted to an interactive application, whereby a user may process finite element meshes at a computer graphics terminal communicating with a VAX computer. Additions and corrections may be made at the terminal. Several mesh variation schemes may be tried in the evolution of a desired finite element mesh. Included in the package are the bandwidth minimization programs, RENUM and RENUM8, with which a user may interactively optimize the mesh numbering.

  16. Interdependency of Subsurface Carbon Distribution and Graphene-Catalyst Interaction

    E-Print Network [OSTI]

    Weatherup, Robert S.; Amara, Hakim; Blume, Raoul; Dlubak, Bruno; Bayer, Bernhard C.; Diarra, Mamadou; Bahri, Mounib; Cabrero-Vilatela, Andrea; Caneva, Sabina; Kidambi, Piran R.; Martin, Marie-Blandine; Deranlot, Cyrile; Seneor, Pierre; Schloegl, Robert; Ducastelle, François; Bichara, Christophe; Hofmann, Stephan

    2014-09-04T23:59:59.000Z

    Interdependency of Subsurface Carbon Distribution and Graphene? Catalyst Interaction Robert S. Weatherup,*,† Hakim Amara,‡ Raoul Blume,§ Bruno Dlubak,?,? Bernhard C. Bayer,† Mamadou Diarra,?,# Mounib Bahri,‡ Andrea Cabrero-Vilatela,† Sabina Caneva... , France * S Supporting Information ABSTRACT: The dynamics of the graphene?catalyst interaction during chemical vapor deposition are investigated using in situ, time- and depth- resolved X-ray photoelectron spectroscopy, and complementary grand canonical...

  17. Interactive modeling and analysis of intruder detection systems

    E-Print Network [OSTI]

    Jones, Michael William

    1991-01-01T23:59:59.000Z

    INTERACTIVE MODELING AND ANALYSIS OF INTRUDER DETECTION SYSTEMS A Thesis by MICHAEL WILLIAM JONES Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1991 Major Subject: Industrial Engineering INTERACTIVE MODELING AND ANALYSIS OF INTRUDER DETECTION SYSTEMS A Thesis by MICHAEL WILLIAM JONES Approved as to style and content by: Robert E . Shannon (Co ? Chair of Committee) Kav...

  18. Infrared Properties of Nearby Interacting Galaxies: from Spirals to ULIRGs

    E-Print Network [OSTI]

    V. Charmandaris

    2006-10-20T23:59:59.000Z

    I present a brief review of some of the mid-infrared properties of interacting galaxies as these were revealed using observations from the Infrared Space Observatory and Spitzer Space Telescope over the last decade. The variation of the infrared spectral energy distribution in interacting galaxies can be used as an extinction free tracer not only of the location of the star formation activity but also of the physical mechanism dominating their energy production.

  19. The $?K$ system production in the hadron interactions

    E-Print Network [OSTI]

    O. V. Bulekov; N. D. Galanina; V. S. Demidov; A. L. Endalov; I. E. Kiselevich; M. A. Martemianov; V. I. Mikhailichenko; V. A. Okorokov; A. K. Ponosov; F. M. Sergeev; N. A. Khaldeeva

    1998-12-03T23:59:59.000Z

    The A-dependence is observed in $x_F$-distributions for the $\\Lambda K^0$ system produced with the small transverse momentum in the neutron-nucleus interactions. For the $\\Lambda$ hyperons similar dependence isn't seen. The result is interpreted as an effect from intermediate excitative nucleon state, which decays into strange particles. Such interpretation is confirmed experimental data on $\\Lambda K$ pair production in the pion-nucleon interactions.

  20. Many-body Interactions in Magnetic Films and Nanostructures

    SciTech Connect (OSTI)

    Stephen D. Kevan

    2012-12-12T23:59:59.000Z

    We describe results supported by DOE grant DE-FG02-04ER46158, which focused on magnetic interaction at surfaces, in thin films, and in metallic nanostructures. We report on three general topics: 1) The Rashba spin splitting at magnetic surfaces of rare earth metals, 2) magnetic nanowires self-assembled on stepped tungsten single crystals, and 3) magnetic interaction in graphene films doped with hydrogen atoms.

  1. Mutually interacting Tachyon dark energy with variable $G$ and $?$

    E-Print Network [OSTI]

    J. Sadeghi; M. Khurshudyan; M. Hakobyan; H. Farahani

    2014-05-20T23:59:59.000Z

    In this paper we consider Tachyonic scalar field as dark energy with interaction between components in the case of variable $G$ and $\\Lambda$. We assume a flat Universe with specific form of scale factor and study cosmological parameters numerically and graphically. Statefinder analysis also performed as well. In the special choice of interaction parameters we succeed to obtain analytical expression of densities. We find that our model will be stable in the late stage but there is an instability at the early Universe.

  2. Predict octane numbers using a generalized interaction method

    SciTech Connect (OSTI)

    Twu, C.H.; Coon, J.E. [Simulation Sciences, Inc., Brea, CA (United States)

    1996-02-01T23:59:59.000Z

    An interaction-based correlation using a new approach can be used to predict research and motor octane numbers of gasoline blends. An ultimately detailed analysis of the gasoline cut is not necessary. This correlation can describe blending behavior over the entire composition range of gasoline cuts. The component-oriented interaction approach is general and will accurately predict, without performing additional blending studies, blending behavior for new gasoline cuts. The proposed correlation fits the data quite closely for blends of many gasoline cuts. The regression gives realistic values for binary interaction parameters between components. A unique set of binary interaction parameters was found for the equation for predicting octane number of any gasoline blend. The binary interaction parameters between components contained in gasoline cuts have been converted to binary interaction parameters between gasoline cuts through a general equation to simplify the calculations. Because of the proposed method`s accuracy, optimum allocation of components among gasoline grades can be obtained and predicted values can be used for quality control of the octane number of marketed gasolines.

  3. Experimental studies of pion-nucleus interactions at intermediate energies

    SciTech Connect (OSTI)

    Not Available

    1991-12-31T23:59:59.000Z

    This report summarizes the work on experimental research in intermediate energy nuclear physics carried out at New Mexico State University in 1991 under a great from the US Department of Energy. Most of these studies have involved investigations of various pion-nucleus interactions. The work has been carried out both with the LAMPF accelerator at the Los Alamos National Laboratory and with the cyclotron at the Paul Scherrer Institute (PSI) near Zurich, Switzerland. Part of the experimental work involves measurements of new data on double-charge-exchange scattering, using facilities at LAMPF which we helped modify, and on pion absorption, using a new detector system at PSI that covers nearly the full solid-angle region which we helped construct. Other work involved preparation for future experiments using polarized nuclear targets and a new high-resolution spectrometer system for detecting {pi}{sup 0} mesons. We also presented several proposals for works to be done in future years, involving studies related to pi-mesonic atoms, fundamental pion-nucleon interactions, studies of the difference between charged and neutral pion interactions with the nucleon, studies of the isospin structure of pion-nucleus interactions, and pion scattering from polarized {sup 3}He targets. This work is aimed at improving our understanding of the pion-nucleon interaction, of the pion-nucleus interaction mechanism, and of nuclear structure.

  4. The intermountain power project commissioning - Subsynchronous torsional interaction tests

    SciTech Connect (OSTI)

    Wu, C.T.; Peterson, K.J. (Dept. of Water and Power, Los Angeles, CA (US)); Pinko, R.J.; Kankam, M.D.; Baker, D.H. (General Electric Co., Schenectady, NY (US))

    1988-10-01T23:59:59.000Z

    Subsyncronous torsional vibration as a result of electrochemical interaction between the HVDC controls and a turbine-generator was first discovered during the commissioning of the Square Butte Project in 1977. The level of interaction between the HVDC controls and the turbine-generator depends on several interacting factors: the characteristic torsional frequencies of the turbine-generator, the bandwidth of the HVDC controls and the relative strength of the connecting ac system. For the Intermountain Power Project (IPP), early analysis of these interacting factors indicated that there exist definite potential for subsynchronous oscillation to occur. The calculated torsional frequencies of the IPP units showed that the first mode frequency is 14.0 Hz and is within the typical bandwidth of an HVDC control which is between 10-20 Hz. The HVDC controls, therefore, can influence the torsional stability of the IPP units. Further, the IPP turbine-generators are required to operate isolated on the HVDC rectifier terminal, with no other interconnecting ac network. This ''radial'' mode of operation will result in maximum interaction between the converter station and the IPP units. It became obvious that special measure must be implemented in the design of the IPP HVDC control system to modify its typical characteristics to avoid the occurrence of the subsynchronous oscillation. This paper presents the results of the subsynchronous torsional interaction (SSTI) tests that were performed during the commissioning of the IPP Unit 1 and the HVDC Transmission system.

  5. The interactions of water and perfluorodiethyl ether on Ru(100)

    SciTech Connect (OSTI)

    Leavitt, P.

    1990-09-21T23:59:59.000Z

    We have studied the interactions of water and perfluorodiethyl ether on Ru(100) in order to model the effects of surface structure and humidity on the bonding and decomposition of perfluoroalkyl ether lubricants with metal surfaces. In order to understand the interactions on Ru(100), we have first investigated the interactions of each of these adsorbates alone on the clean surface. The interactions of water with Ru(100) have been studied using both thermal desorption spectroscopy (TDS) and electron energy loss spectroscopy (EELS). From these studies we conclude that a small amount of water dissociates on this surface (5--10% of a monolayer), but water is adsorbed in a predominantly molecular form on this surface with an increasing degree of hydrogen-bonding with increasing coverage. The effects of hydrogen and oxygen coadsorption on the interactions of water with this surface have also been studied using TDS. Finally, the interactions of coadsorbed water and perfluorodiethyl ether on Ru(100) have been investigated using TDS.

  6. Hydraulic Interaction between Geosynthetic Drainage Layers and Unsaturated Low Plasticity Clay

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    1 Hydraulic Interaction between Geosynthetic Drainage Layers and Unsaturated Low Plasticity Clay of soil density on the hydraulic interaction between unsaturated, low plasticity clay and geosynthetic drainage layers. The hydraulic interaction was evaluated using the system hydraulic conductivity, moisture

  7. Water hammer with fluidstructure interaction in thick-walled pipes A.S. Tijsseling *

    E-Print Network [OSTI]

    Tijsseling, A.S.

    . The model is based on conventional water-hammer and beam theories. Fluid­structure interaction (FSI­structure interaction. The numerical simulation of water-hammer events (with and without fluid­structure interaction

  8. Characterization of Physical and Functional Interactions Between the MYC Oncoprotein and the Acetyltransferase GCN5

    E-Print Network [OSTI]

    Ichikawa, Wataru

    2012-01-01T23:59:59.000Z

    respectively. Figure 3.5 MYC TAD interacts with the HAT andactivation domain (TAD) has been shown to interact withHEK293 cells Figure 3.1 MYC TAD 1-263 specifically interacts

  9. ZeroN : mid-Air tangible interaction enabled by computer controlled magnetic levitation

    E-Print Network [OSTI]

    Lee, Jinha

    2011-01-01T23:59:59.000Z

    This thesis presents a concept of mid-air tangible interaction and a system called ZeroN that was developed to enable this interaction. Through this research, I extend the tabletop tangible interaction modalities which ...

  10. Improving Usability of Interactive Graphics Specification and Implementation with Picking Views

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Improving Usability of Interactive Graphics Specification and Implementation with Picking Views.conversy@enac.fr Abstract-- Specifying and programming graphical interactions are difficult tasks, notably because designers architecture improves the usability of the specification and the implementation of graphical interaction

  11. Interaction energy and itinerant ferromagnetism in a strongly interacting Fermi gas in the absence of molecule formation

    E-Print Network [OSTI]

    Lianyi He

    2014-11-26T23:59:59.000Z

    We investigate the interaction energy and the possibility of itinerant ferromagnetism in a strongly interacting Fermi gas at zero temperature in the absence of molecule formation. The interaction energy is obtained by summing the perturbative contributions of Galitskii-Feynman type to all orders in the gas parameter. It can be expressed by a simple phase space integral of an in-medium scattering phase shift. In both three and two dimensions (3D and 2D), the interaction energy shows a maximum before reaching the resonance from the Bose-Einstein condensate side, which provides a possible explanation of the experimental measurements of the interaction energy. This phenomenon can be theoretically explained by the qualitative change of the nature of the binary interaction in the medium. The appearance of an energy maximum has significant effects on the itinerant ferromagnetism. In 3D, the ferromagnetic transition is reentrant and itinerant ferromagnetism exists in a narrow window around the energy maximum. In 2D, the present theoretical approach suggests that itinerant ferromagnetism does not exist, which reflects the fact that the energy maximum becomes much lower than the energy of the fully polarized state.

  12. Lattice cluster theory for polymer melts with specific interactions

    E-Print Network [OSTI]

    Wen-Sheng Xu; Karl F. Freed

    2014-07-12T23:59:59.000Z

    Despite the long-recognized fact that chemical structure and specific interactions greatly influence the thermodynamic properties of polymer systems, a predictive molecular theory that enables systematically addressing the role of chemical structure and specific interactions has been slow to develop even for polymer melts. While the lattice cluster theory (LCT) provides a powerful vehicle for understanding the influence of various molecular factors, such as monomer structure, on the thermodynamic properties of polymer melts and blends, the application of the LCT has heretofore been limited to the use of the simplest polymer model in which all united atom groups within the monomers of a species interact with a common monomer averaged van der Waals energy. Thus, the description of a compressible polymer melt involves a single van der Waals energy. As a first step towards developing more realistic descriptions to aid in the analysis of experimental data and the design of new materials, the LCT is extended here to treat models of polymer melts in which the backbone and side groups have different interaction strengths, so three energy parameters are present, namely, backbone-backbone, side group-side group, and backbone-side group interaction energies. Because of the great algebraic complexity of this extension, we retain maximal simplicity within this class of models by further specializing this initial study to models of polymer melts comprising chains with poly($n$-$\\alpha$-olefin) structures where only the end segments on the side chains may have different, specific van der Waals interaction energies with the other united atom groups. An analytical expression for the LCT Helmholtz free energy is derived for the new model. Illustrative calculations are presented to demonstrate the degree to which the thermodynamic properties of polymer melts can be controlled by specific interactions.

  13. Analysing Multitarget Activity Landscapes using Protein-Ligand Interaction Fingerprints: Interaction cliffs

    E-Print Network [OSTI]

    Méndez-Lucio, Oscar; Kooistra, Albert J.; de Graaf, Chris; Bender, Andreas; Medina-Franco, José L.

    2015-01-23T23:59:59.000Z

    ) 6 bound to two different kinases, namely aurora kinase (AURKA) and a mutant of cAMP-dependent protein kinase (PKAC?). In both crystal structures, 6 forms the same hydrogen bond interactions with the two targets, AURKA (PDB ID: 3E5A)56 and PKAC?... .607 3CJF KDR 6.3 3.40 0.750 0.790 3FQS SYK 41 2.59 0.889 0.879 2NP8 Aurora A 42 2.58 0.739 0.600 1OI9 CDK2 69 2.37 0.696 0.600 3H3C PYK2 140 2.06 0.682 0.580 2IW6 CDK2 140 2.06 0.696 0.597 2C5N CDK2 220 1.86 0.714 0.670 2C6K CDK2 730 1.34 0.680 0...

  14. Texas Adapted Genetic Strategies for Beef Cattle II: Genetic-Environmental Interaction

    E-Print Network [OSTI]

    Hammack, Stephen P.

    2009-01-27T23:59:59.000Z

    Animal performance is determined by genetics, environment and the interaction between the two. This publication illustrates the interaction of genetics with physical environment, nutrition, management, and economics....

  15. E-Print Network 3.0 - arterial fluid-structure interactions Sample...

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

    interaction Patient... Oshima Toshio Kobayashi Kiyoshi Takagi Tayfun E. Tezduyar Fluid-structure interaction modeling... of hemodynamic factors in blood ves- sels, the...

  16. E-Print Network 3.0 - arabidopsis cpl1 interacts Sample Search...

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

    programmed cell death in plant-pathogen interactions Please note the 31 seminar will be held... Bruce Clarke Herbicide and Fungicide Interactions in Gray Leaf Spot (Blast)...

  17. E-Print Network 3.0 - aberration formation interaction Sample...

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

    interact strongly in determining subjective... . Experiment 1. We used adaptive optics to demonstrate the interactions between pairs of aberrations in real... that do not...

  18. E-Print Network 3.0 - aerosol atmospheric interactions Sample...

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

    for Climate Summary: order estimates of aerosol-climate interaction But... only Earth System Models can include all... of the interactions (in theory at least) 12;Aerosols <>...

  19. E-Print Network 3.0 - alpha-nucleus interaction potential Sample...

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

    (CPEP) 4-1 Chapter 4 Four Fundamental Interactions The forces of gravity and electromagnetism... and weak interactions. When two protons encounter each other, they experience...

  20. E-Print Network 3.0 - abnormal neutrophil-pulmonary interaction...

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

    CGS 4315 Intelligent Systems Design CGS 4352 Human Computer Interactions I CGS 4353 Human Computer... Interactions II ED 4352 Reading I: Initial Instruction for Elementary...

  1. attractively interacting bose-einstein: Topics by E-print Network

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

    Attractive Interactions Our current understanding of the collapse of Bose-Einstein condensates (BECs) with attractive interactions is incomplete. Previous experiment studied very...

  2. E-Print Network 3.0 - alpha-alpha interaction contribution Sample...

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

    directions of two interacting -strands. More... in interactions between them and with water. The chemical properties of amino acids can be divided into two main... the total...

  3. E-Print Network 3.0 - al solute interaction Sample Search Results

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

    Collection: Physics 5 Enhanced Interactive Spiral Display Christian Tominski and Heidrun Schumann Summary: - Interaction 12;Visual Encoding Saito et al.s TwoTone Pseudo Coloring...

  4. Interaction effects and quantum phase transitions in topological insulators

    SciTech Connect (OSTI)

    Varney, Christopher N. [Department of Physics, Georgetown University, Washington, DC 20057 (United States); Joint Quantum Institute and Department of Physics, University of Maryland, College Park, Maryland 20742 (United States); Sun Kai; Galitski, Victor [Joint Quantum Institute and Department of Physics, University of Maryland, College Park, Maryland 20742 (United States); Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742 (United States); Rigol, Marcos [Department of Physics, Georgetown University, Washington, DC 20057 (United States)

    2010-09-15T23:59:59.000Z

    We study strong correlation effects in topological insulators via the Lanczos algorithm, which we utilize to calculate the exact many-particle ground-state wave function and its topological properties. We analyze the simple, noninteracting Haldane model on a honeycomb lattice with known topological properties and demonstrate that these properties are already evident in small clusters. Next, we consider interacting fermions by introducing repulsive nearest-neighbor interactions. A first-order quantum phase transition was discovered at finite interaction strength between the topological band insulator and a topologically trivial Mott insulating phase by use of the fidelity metric and the charge-density-wave structure factor. We construct the phase diagram at T=0 as a function of the interaction strength and the complex phase for the next-nearest-neighbor hoppings. Finally, we consider the Haldane model with interacting hard-core bosons, where no evidence for a topological phase is observed. An important general conclusion of our work is that despite the intrinsic nonlocality of topological phases their key topological properties manifest themselves already in small systems and therefore can be studied numerically via exact diagonalization and observed experimentally, e.g., with trapped ions and cold atoms in optical lattices.

  5. Stellar coronal magnetic fields and star-planet interaction

    E-Print Network [OSTI]

    Lanza, A F

    2009-01-01T23:59:59.000Z

    Evidence of magnetic interaction between late-type stars and close-in giant planets is provided by the observations of stellar hot spots rotating synchronously with the planets and showing an enhancement of chromospheric and X-ray fluxes. We investigate star-planet interaction in the framework of a magnetic field model of a stellar corona, considering the interaction between the coronal field and that of a planetary magnetosphere moving through the corona. The energy budget of the star-planet interaction is discussed assuming that the planet may trigger a release of the energy of the coronal field by decreasing its relative helicity. The observed intermittent character of the star-planet interaction is explained by a topological change of the stellar coronal field, induced by a variation of its relative helicity. The model predicts the formation of many prominence-like structures in the case of highly active stars owing to the accumulation of matter evaporated from the planet inside an azimuthal flux rope in ...

  6. Molecular force spectroscopy of homophilic nectin-1 interactions

    SciTech Connect (OSTI)

    Vedula, Sri Ram Krishna [Division of Bioengineering and Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 (Singapore); Lim, T.S. [Bioinformatics Institute (Singapore); NUS Graduate School for Integrative Sciences and Engineering (Singapore); Hui Shi [Division of Bioengineering and Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 (Singapore); Kausalya, P. Jaya [Institute of Molecular and Cell Biology (Singapore); Lane, E. Birgitte [Institute of Medical Biology (Singapore); Rajagopal, Gunaretnam [Bioinformatics Institute (Singapore); Hunziker, Walter [Institute of Molecular and Cell Biology (Singapore); Lim, C.T. [Division of Bioengineering and Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 (Singapore)], E-mail: ctlim@nus.edu.sg

    2007-11-03T23:59:59.000Z

    Nectins are Ca{sup 2+} independent cell adhesion molecules localizing at the cadherin based adherens junctions. In this study, we have used atomic force microscopy to study interaction of a chimera of extra cellular fragment of nectin-1 and Fc of human IgG (nef-1) with wild type L-fibroblasts that express endogenous nectin-1 to elucidate the biophysical characteristics of homophilic nectin-1 trans-interactions at the level of single molecule. Bond strength distribution revealed three distinct bound states (or configurations) of trans-interactions between paired nectins, where each bound state has a unique unstressed off-rate and reactive compliance. Kinetic analysis of force-dependent off-rate of the bound state involving trans-interacting V-V domains between paired nectin-1 (unstressed off-rate {approx}1.465 {+-} 0.779 s{sup -1}, reactive compliance {approx}0.143 {+-} 0.072 nm) was found to be closest to E-cadherin, indicating that V-V domain trans-interactions are probably necessary to initiate and promote adhesions of E-cadherin at adherens junctions (AJs)

  7. Coulomb interactions between dust particles in plasma etching reactors

    SciTech Connect (OSTI)

    Hwang, H.H.; Kushner, M.J. [Univ. of Illinois, Urbana, IL (United States). Dept. of Electrical and Computer Engineering

    1996-12-31T23:59:59.000Z

    Wafer contamination by particles, or dust, in plasma processing reactors remains a continuing concern in the microelectronics industry. Particles charge negatively in low temperature plasmas and resemble electrically floating bodies. The transport of these particles in plasma processing reactors is dominated by electrostatic, ion-drag, fluid-drag, and thermophoretic forces. Under conditions where the particle density is large, Debye shielding may be insufficient to isolate the particles, leading to particle-particle Coulomb interactions. Such interactions are likely to occur in trapping locations, which are typically near the plasma-sheath boundaries in Reactive Ion Etching (RIE) discharges. Particles that experience Coulomb interactions may display collective behavior, an extreme example being a Coulomb liquid or solid. Particle transport in plasma processing reactors has been studied extensively to predict rates of wafer contamination thought to date particle-particle interactions have not been addressed. In this paper, the authors discuss results from a computer model for dust particle transport in RIE discharges where particle-particle Coulomb interactions are included.

  8. Gamow shell model and realistic nucleon-nucleon interactions

    E-Print Network [OSTI]

    G. Hagen; M. Hjorth-Jensen; N. Michel

    2006-05-27T23:59:59.000Z

    We present a new and efficient method to obtain a Gamow shell-model basis and matrix elements generated by realistic nucleon-nucleon interactions. We derive a self-consistent Hartree-Fock potential from the renormalized N3LO interaction model. The corresponding Gamow one-body eigenstates are generated in a plane wave basis in order to build a Gamow shell-model set of basis states for the closed shell nuclei 4He and 16O. We address also the problem of representing a realistic nucleon-nucleon interaction in a two-particle Berggren basis in the laboratory frame. To achieve this, an expansion of matrix elements of the residual nucleon-nucleon interaction in a finite set of harmonic oscillator wave functions is used. We show that all loosely bound and narrow resonant states converge surprisingly fast. Even broad resonances in these two-particle valence systems converge within a reasonable number of harmonic oscillator functions. Examples of 6He and 18O Gamow shell-model calculations using 4He and 16}O as closed shell cores are presented. This procedure allows Gamow shell-model calculations to be performed with all realistic nucleon-nucleon interactions and with either momentum or position space representations for the Gamow basis. The possibility to remove the center of mass spuriosity of Gamow shell-model nuclear states with this method is also discussed. Perspectives for nuclear structure calculations of dripline nuclei are outlined.

  9. Error analysis of nuclear forces and effective interactions

    E-Print Network [OSTI]

    R. Navarro Perez; J. E. Amaro; E. Ruiz Arriola

    2014-09-04T23:59:59.000Z

    The Nucleon-Nucleon interaction is the starting point for ab initio Nuclear Structure and Nuclear reactions calculations. Those are effectively carried out via effective interactions fitting scattering data up to a maximal center of mass momentum. However, NN interactions are subjected to statistical and systematic uncertainties which are expected to propagate and have some impact on the predictive power and accuracy of theoretical calculations, regardless on the numerical accuracy of the method used to solve the many body problem. We stress the necessary conditions required for a correct and self-consistent statistical interpretation of the discrepancies between theory and experiment which enable a subsequent statistical error propagation and correlation analysis. We comprehensively discuss an stringent and recently proposed tail-sensitive normality test and provide a simple recipe to implement it. As an application, we analyze the deduced uncertainties and correlations of effective interactions in terms of Moshinsky-Skyrme parameters and effective field theory counterterms as derived from the bare NN potential containing One-Pion-Exchange and Chiral Two-Pion-Exchange interactions inferred from scattering data.

  10. Sighting characteristics and photo-identification of Cuvier’s beaked whales (Ziphius cavirostris) near San Clemente Island, California: a key area for beaked whales and the military?

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    i. Can J Zool 84:1120–1128 Balcomb KC, Claridge DE (2001) ARead AJ, Vos E, Baird RW, Balcomb K, Barlow J, Caldwell J,

  11. Probing effective nucleon-nucleon interaction at band termination

    E-Print Network [OSTI]

    Wojciech Satula

    2006-10-27T23:59:59.000Z

    Low-energy nuclear structure is not sensitive enough to resolve fine details of nucleon-nucleon (NN) interaction. Insensitivity of infrared physics to the details of short-range strong interaction allows for consistent, free of ultraviolet divergences, formulation of local theory at the level of local energy density functional (LEDF) including, on the same footing, both particle-hole as well as particle-particle channels. Major difficulty is related to parameterization of the nuclear LEDF and its density dependence. It is argued that structural simplicity of terminating or isomeric states offers invaluable source of informations that can be used for fine-tuning of the NN interaction in general and the nuclear LEDF parameters in particular. Practical applications of terminating states at the level of LEDF and nuclear shell-model are discussed.

  12. Persistence of locality in systems with power-law interactions

    E-Print Network [OSTI]

    Zhe-Xuan Gong; Michael Foss-Feig; Spyridon Michalakis; Alexey V. Gorshkov

    2014-07-07T23:59:59.000Z

    Motivated by recent experiments with ultra-cold matter, we derive a new bound on the propagation of information in $D$-dimensional lattice models exhibiting $1/r^{\\alpha}$ interactions with $\\alpha>D$. The bound contains two terms: One accounts for the short-ranged part of the interactions, giving rise to a bounded velocity and reflecting the persistence of locality out to intermediate distances, while the other contributes a power-law decay at longer distances. We demonstrate that these two contributions not only bound but, except at long times, \\emph{qualitatively reproduce} the short- and long-distance dynamical behavior following a local quench in an $XY$ chain and a transverse-field Ising chain. In addition to describing dynamics in numerous intractable long-range interacting lattice models, our results can be experimentally verified in a variety of ultracold-atomic and solid-state systems.

  13. Dynamic control of spin states in interacting magnetic elements

    DOE Patents [OSTI]

    Jain, Shikha; Novosad, Valentyn

    2014-10-07T23:59:59.000Z

    A method for the control of the magnetic states of interacting magnetic elements comprising providing a magnetic structure with a plurality of interacting magnetic elements. The magnetic structure comprises a plurality of magnetic states based on the state of each interacting magnetic element. The desired magnetic state of the magnetic structure is determined. The active resonance frequency and amplitude curve of the desired magnetic state is determined. Each magnetic element of the magnetic structure is then subjected to an alternating magnetic field or electrical current having a frequency and amplitude below the active resonance frequency and amplitude curve of said desired magnetic state and above the active resonance frequency and amplitude curve of the current state of the magnetic structure until the magnetic state of the magnetic structure is at the desired magnetic state.

  14. Using Entanglement in Quantum Multi-Prover Interactive Proofs

    E-Print Network [OSTI]

    Julia Kempe; Hirotada Kobayashi; Keiji Matsumoto; Thomas Vidick

    2007-11-23T23:59:59.000Z

    The central question in quantum multi-prover interactive proof systems is whether or not entanglement shared between provers affects the verification power of the proof system. We study for the first time positive aspects of prior entanglement and show that entanglement is useful even for honest provers. We show how to use shared entanglement to parallelize any multi-prover quantum interactive proof system to a one-round system with perfect completeness, with one extra prover. Alternatively, we can also parallelize to a three-turn system with the same number of provers, where the verifier only broadcasts the outcome of a coin flip. This "public-coin" property is somewhat surprising, since in the classical case public-coin multi-prover interactive proofs are equivalent to single prover ones.

  15. The interaction between the Moon and the solar wind

    E-Print Network [OSTI]

    Holmström, M; Futaana, Y; Nilsson, H

    2011-01-01T23:59:59.000Z

    We study the interaction between the Moon and the solar wind using a three-dimensional hybrid plasma solver. The proton fluxes and electromagnetical fields are presented for typical solar wind conditions with different magnetic field directions. Several features are consistent with a fluid interaction, e.g., the presence of a rarefaction cone, and an increased magnetic field in the wake. There are however several kinetic features of the interaction. We find kinks in the magnetic field at the wake boundary. There are also density and magnetic field variations in the far wake, maybe from an ion beam instability related to the wake refill. The results are compared to observations by the WIND spacecraft during a wake crossing. The model magnetic field and ion velocities are in agreement with the measurements. The density and the electron temperature in the central wake are not as well captured by the model, probably from the lack of electron physics in the hybrid model.

  16. Temperature inversion in long-range interacting systems

    E-Print Network [OSTI]

    Teles, Tarcisio N; Casetti, Lapo

    2015-01-01T23:59:59.000Z

    Temperature inversions occur in nature, e.g., in the solar corona and in interstellar molecular clouds: somewhat counterintuitively, denser parts of the system are colder than dilute ones. We propose a simple and appealing mechanism to spontaneously generate temperature inversions in systems with long-range interactions, by preparing them in inhomogeneous thermal equilibrium states and then applying an impulsive perturbation. In similar situations, short-range systems would typically relax to another thermal equilibrium, with uniform temperature profile. By contrast, in long-range systems, the interplay between wave-particle interaction and spatial inhomogeneity drives the system to nonequilibrium stationary states that generically exhibit temperature inversion. Our work underlines the crucial role the range of interparticle interaction plays in determining the nature of steady states attained when macroscopic systems are brought out of thermal equilibrium.

  17. Many-body interactions in quasi-freestanding graphene

    SciTech Connect (OSTI)

    Siegel, David; Park, Cheol-Hwan; Hwang, Choongyu; Deslippe, Jack; Fedorov, Alexei; Louie, Steven; Lanzara, Alessandra

    2011-06-03T23:59:59.000Z

    The Landau-Fermi liquid picture for quasiparticles assumes that charge carriers are dressed by many-body interactions, forming one of the fundamental theories of solids. Whether this picture still holds for a semimetal such as graphene at the neutrality point, i.e., when the chemical potential coincides with the Dirac point energy, is one of the long-standing puzzles in this field. Here we present such a study in quasi-freestanding graphene by using high-resolution angle-resolved photoemission spectroscopy. We see the electron-electron and electron-phonon interactions go through substantial changes when the semimetallic regime is approached, including renormalizations due to strong electron-electron interactions with similarities to marginal Fermi liquid behavior. These findings set a new benchmark in our understanding of many-body physics in graphene and a variety of novel materials with Dirac fermions.

  18. Star Formation in Mergers and Interacting Galaxies: Gathering the Fuel

    E-Print Network [OSTI]

    Curtis Struck

    2006-10-06T23:59:59.000Z

    Selected results from recent studies of star formation in galaxies at different stages of interaction are reviewed. Recent results from the Spitzer Space Telescope are highlighted. Ideas on how large-scale driving of star formation in interacting galaxies might mesh with our understanding of star formation in isolated galaxies and small scale mechanisms within galaxies are considered. In particular, there is evidence that on small scales star formation is determined by the same thermal and turbulent processes in cool compressed clouds as in isolated galaxies. If so, this affirms the notion that the primary role of large-scale dynamics is to gather and compress the gas fuel. In gas-rich interactions this is generally done with increasing efficiency through the merger process.

  19. Role of magnetic field tangency points in ICRF sheath interactions

    SciTech Connect (OSTI)

    Myra, J. R.; D'Ippolito, D. A. [Lodestar Research Corporation, Boulder, CO 80301 (United States); Kohno, H. [Department of Mechanical Information Science and Technology, Kyushu Institute of Technology, Fukuoka 820-8502 (Japan)

    2014-02-12T23:59:59.000Z

    ICRF waves can sometimes interact with plasma-facing surfaces in tokamak fusion experiments causing degradation of core heating efficiency, impurity injection and even component damage. While presently available low dimensionality rf sheath models are useful in understanding many features of these interactions, more quantitative modeling will require attention to realistic geometrical details of the boundary plasma and surfaces. In this paper, we explore the situation in which there exists a tangency point of the background magnetic field with a surface. We find that the rf interactions are strongly influenced by the generation and propagation of sheath-plasma waves (SPW) along the surface. It is found that these waves preferentially propagate towards, and accumulate at, a convex tangency point. An analytical theory of SPW propagation is developed to understand these features.

  20. Spin-Flavor van der Waals Forces and NN interaction

    SciTech Connect (OSTI)

    Alvaro Calle Cordon, Enrique Ruiz Arriola

    2011-12-01T23:59:59.000Z

    A major goal in Nuclear Physics is the derivation of the Nucleon-Nucleon (NN) interaction from Quantum Chromodynamics (QCD). In QCD the fundamental degrees of freedom are colored quarks and gluons which are confined to form colorless strongly interacting hadrons. Because of this the resulting nuclear forces at sufficiently large distances correspond to spin-flavor excitations, very much like the dipole excitations generating the van der Waals (vdW) forces acting between atoms. We study the Nucleon-Nucleon interaction in the Born-Oppenheimer approximation at second order in perturbation theory including the Delta resonance as an intermediate state. The potential resembles strongly chiral potentials computed either via soliton models or chiral perturbation theory and has a van der Waals like singularity at short distances which is handled by means of renormalization techniques. Results for the deuteron are discussed.

  1. Collective modes in a Dirac insulator with short range interactions

    E-Print Network [OSTI]

    Xi Luo; Yue Yu; Long Liang

    2015-03-06T23:59:59.000Z

    We study a Haldane model with nearest neighbor interactions. We find one-dimensional like collective modes arising due to the interplay of pseudo-spin and valley degrees of freedom. In the large band gap or moderate interaction limit, these excitations are low energy modes lying in the band gap. The dispersion relations are qualitatively different in trivial insulator phase and Chern insulator phase, thus can be used to identify the topology of the Haldane model with the bulk property. We also discuss how to detect these modes in cold atom systems. An abelian gauge theory will emerge when a physical current-current interaction is introduced to the Haldane model or the Kane-Mele model.

  2. Loschmidt echo in one-dimensional interacting Bose gases

    SciTech Connect (OSTI)

    Lelas, K.; Seva, T.; Buljan, H. [Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture, University of Split, Rudjera Boskovica BB, 21000 Split (Croatia); Department of Physics, University of Zagreb, Bijenicka c. 32, 10000 Zagreb (Croatia)

    2011-12-15T23:59:59.000Z

    We explore Loschmidt echo in two regimes of one-dimensional interacting Bose gases: the strongly interacting Tonks-Girardeau (TG) regime, and the weakly interacting mean-field regime. We find that the Loschmidt echo of a TG gas decays as a Gaussian when small (random and time independent) perturbations are added to the Hamiltonian. The exponent is proportional to the number of particles and the magnitude of a small perturbation squared. In the mean-field regime the Loschmidt echo shows richer behavior: it decays faster for larger nonlinearity, and the decay becomes more abrupt as the nonlinearity increases; it can be very sensitive to the particular realization of the noise potential, especially for relatively small nonlinearities.

  3. Human-computer interface including haptically controlled interactions

    DOE Patents [OSTI]

    Anderson, Thomas G.

    2005-10-11T23:59:59.000Z

    The present invention provides a method of human-computer interfacing that provides haptic feedback to control interface interactions such as scrolling or zooming within an application. Haptic feedback in the present method allows the user more intuitive control of the interface interactions, and allows the user's visual focus to remain on the application. The method comprises providing a control domain within which the user can control interactions. For example, a haptic boundary can be provided corresponding to scrollable or scalable portions of the application domain. The user can position a cursor near such a boundary, feeling its presence haptically (reducing the requirement for visual attention for control of scrolling of the display). The user can then apply force relative to the boundary, causing the interface to scroll the domain. The rate of scrolling can be related to the magnitude of applied force, providing the user with additional intuitive, non-visual control of scrolling.

  4. In vivo interactions between tungsten microneedles and peripheral nerves

    E-Print Network [OSTI]

    Pier Nicola Sergi; Winnie Jensen; Silvestro Micera; Ken Yoshida

    2013-08-02T23:59:59.000Z

    Tungsten microneedles are currently used to insert neural electrodes into living peripheral nerves. However, the biomechanics underlying these procedures is not yet well characterized. For this reason, the aim of this work was to model the interactions between these microneedles and living peripheral nerves. A simple mathematical framework was especially provided to model both compression of the external layer of the nerve (epineurium) and the interactions resulting from penetration of the main shaft of the microneedle inside the living nerves. The instantaneous Young's modulus, compression force, the work needed to pierce the tissue, puncturing pressure, and the dynamic friction coefficient between the tungsten microneedles and living nerves were quantified starting from acute experiments, aiming to reproduce the physical environment of real implantations. Indeed, a better knowledge of the interactions between microneedles and peripheral nerves may be useful to improve the effectiveness of these insertion techniques, and could represent a key factor for designing robot-assisted procedures tailored for peripheral nerve insertion.

  5. Using Highly Interactive Virtual Environments for Safeguards Activities

    SciTech Connect (OSTI)

    Weil, Bradley S [ORNL] [ORNL; Alcala, Benjamin S [ORNL] [ORNL; Alcala, Scott [ORNL] [ORNL; Eipeldauer, Mary D [ORNL] [ORNL; Weil, Logan B [ORNL] [ORNL

    2010-01-01T23:59:59.000Z

    Highly interactive virtual environment (HIVE) is a term that refers to interactive educational simulations, serious games and virtual worlds. Studies indicate that learning with the aid of interactive environments produces better retention and depth of knowledge by promoting improved trainee engagement and understanding. Virtual reality or three dimensional (3D) visualization is often used to promote the understanding of something when personal observation, photographs, drawings, and/or sketches are not possible or available. Subjects and situations, either real or hypothetical, can be developed using a 3D model. Models can be tailored to the audience allowing safeguards and security features to be demonstrated for educational purposes in addition to engineering evaluation and performance analysis. Oak Ridge National Laboratory (ORNL) has begun evaluating the feasibility of HIVEs for improving safeguards activities such as training, mission planning, and evaluating worker task performance. This paper will discuss the development workflow of HIVEs and present some recent examples.

  6. On extended sign-changeable interactions in the dark sector

    E-Print Network [OSTI]

    Mónica Forte

    2014-09-23T23:59:59.000Z

    We extend the cosmological couplings proposed in Sun et al. and Wei, where they suggested interactions with change of signs along the cosmological evolution. Our extension liberates the changes of sign of the interaction from the deceleration parameter and from the relation of energy densities of the dark sector and considers the presence of non interactive matter. In three cases we obtain the general solutions and the results obtained in models fitted with Hubble's function and SNe Ia data, are analyzed regarding the problem of the cosmological coincidence, the problem of the crisis of the cosmological age and the magnitude of the energy density of dark energy at early universe. Also we graphically study the range of variation of, the actual dark matter density parameter, the effective equation of state of the dark energy and the redshift of transition to the accelerated regimen, generated by variations at order $1\\sigma$ in the coupling parameters.

  7. Eight-quark interactions as a chiral thermometer

    E-Print Network [OSTI]

    J. Moreira; A. A. Osipov; B. Hiller; A. H. Blin; J. Providencia

    2008-06-02T23:59:59.000Z

    A NJL Lagrangian extended to six and eight quark interactions is applied to study temperature effects (SU(3) flavor limit, massless case), and (realistic massive case). The transition temperature can be considerably reduced as compared to the standard approach, in accordance with recent lattice calculations. The mesonic spectra built on the spontaneously broken vacuum induced by the 't Hooft interaction strength, as opposed to the commonly considered case driven by the four-quark coupling, undergoes a rapid crossover to the unbroken phase, with a slope and at a temperature which is regulated by the strength of the OZI violating eight-quark interactions. This strength can be adjusted in consonance with the four-quark coupling and leaves the spectra unchanged, except for the sigma meson mass, which decreases. A first order transition behavior is also a possible solution within the present approach.

  8. Multi-time Schrödinger equations cannot contain interaction potentials

    SciTech Connect (OSTI)

    Petrat, Sören, E-mail: petrat@math.lmu.de [Mathematisches Institut, Ludwig-Maximilians-Universität, Theresienstr. 39, 80333 München (Germany)] [Mathematisches Institut, Ludwig-Maximilians-Universität, Theresienstr. 39, 80333 München (Germany); Tumulka, Roderich, E-mail: tumulka@math.rutgers.edu [Department of Mathematics, Rutgers University, 110 Frelinghuysen Road, Piscataway, New Jersey 08854-8019 (United States)] [Department of Mathematics, Rutgers University, 110 Frelinghuysen Road, Piscataway, New Jersey 08854-8019 (United States)

    2014-03-15T23:59:59.000Z

    Multi-time wave functions are wave functions that have a time variable for every particle, such as ?(t{sub 1},x{sub 1},...,t{sub N},x{sub N}). They arise as a relativistic analog of the wave functions of quantum mechanics but can be applied also in quantum field theory. The evolution of a wave function with N time variables is governed by N Schrödinger equations, one for each time variable. These Schrödinger equations can be inconsistent with each other, i.e., they can fail to possess a joint solution for every initial condition; in fact, the N Hamiltonians need to satisfy a certain commutator condition in order to be consistent. While this condition is automatically satisfied for non-interacting particles, it is a challenge to set up consistent multi-time equations with interaction. We prove for a wide class of multi-time Schrödinger equations that the presence of interaction potentials (given by multiplication operators) leads to inconsistency. We conclude that interaction has to be implemented instead by creation and annihilation of particles, which, in fact, can be done consistently [S. Petrat and R. Tumulka, “Multi-time wave functions for quantum field theory,” Ann. Physics (to be published)]. We also prove the following result: When a cut-off length ? > 0 is introduced (in the sense that the multi-time wave function is defined only on a certain set of spacelike configurations, thereby breaking Lorentz invariance), then the multi-time Schrödinger equations with interaction potentials of range ? are consistent; however, in the desired limit ? ? 0 of removing the cut-off, the resulting multi-time equations are interaction-free, which supports the conclusion expressed in the title.

  9. Remote Tomography Via von Neumann-Arthurs-Kelly Interaction

    E-Print Network [OSTI]

    S. M. Roy; Abhinav Deshpande; Nitica Sakharwade

    2013-08-23T23:59:59.000Z

    Teleportation usually involves entangled particles 1,2 shared by Alice and Bob, Bell-state measurement on particle 1 and system particle by Alice, classical communication to Bob, and unitary transformation by Bob on particle 2. We propose a novel method: interaction-based remote tomography. Alice arranges an entanglement generating von Neumann-Arthurs-Kelly interaction between the system and two apparatus particles, and then teleports the latter to Bob. Bob reconstructs the unknown initial state of the system not received by him by quadrature measurements on the apparatus particles .

  10. Ratchet transport for a chain of interacting charged particles

    E-Print Network [OSTI]

    S. I. Denisov; E. S. Denisova; P. Hänggi

    2006-03-15T23:59:59.000Z

    We study analytically and numerically the overdamped, deterministic dynamics of a chain of {\\it charged}, interacting particles driven by a longitudinal alternating electric field and additionally interacting with a smooth ratchet potential. We derive the equations of motion, analyze the general properties of their solutions and find the drift criterion for chain motion. For ratchet potentials of the form of a double-sine and a phase-modulated sine it is demonstrated that both, a so-called integer and fractional transport of the chain can occur. Explicit results for the directed chain transport for these two classes of ratchet potentials are presented.

  11. Framework for Interactive Parallel Dataset Analysis on the Grid

    SciTech Connect (OSTI)

    Alexander, David A.; Ananthan, Balamurali; /Tech-X Corp.; Johnson, Tony; Serbo, Victor; /SLAC

    2007-01-10T23:59:59.000Z

    We present a framework for use at a typical Grid site to facilitate custom interactive parallel dataset analysis targeting terabyte-scale datasets of the type typically produced by large multi-institutional science experiments. We summarize the needs for interactive analysis and show a prototype solution that satisfies those needs. The solution consists of desktop client tool and a set of Web Services that allow scientists to sign onto a Grid site, compose analysis script code to carry out physics analysis on datasets, distribute the code and datasets to worker nodes, collect the results back to the client, and to construct professional-quality visualizations of the results.

  12. Consistent interaction vertices in arbitrary topological BF theories

    SciTech Connect (OSTI)

    Bizdadea, C.; Cioroianu, E. M.; Saliu, S. O.; Sararu, S. C.; Stanciu-Oprean, L. [Department of Physics, University of Craiova, 13 Al. I. Cuza Street, Craiova 200585 (Romania)

    2013-11-13T23:59:59.000Z

    Here we extend the previous results from [12] to the computation of all consistent self-interactions for topological BF theories with maximal field spectra in D =5,6,7,8 and present some partial results on possible generalizations on a space-time of arbitrary dimension D. For convenience, the deformation of the solution to the master equation in the context of the BRST-antifield formalism is used as a general method of constructing consistent interacting gauge field theories together with most of the standard hypotheses on quantum field theories on Minkowski space-times.

  13. Truncation of Periodic Image Interactions for Confined Systems

    E-Print Network [OSTI]

    Sohrab Ismail-Beigi

    2006-03-16T23:59:59.000Z

    First principles methods based on periodic boundary conditions are used extensively by materials theorists. However, applying these methods to systems with confined electronic states entails the use of large unit cells in order to avoid artificial image interactions. We present a general approach for truncating the Coulomb interaction that removes image effects directly and leads to well converged results for modest-sized periodic cells. As an illustration, we find the lowest-energy quasiparticle and exciton states in two-dimensional hexagonal GaN sheets. These sheets have been proposed as parent materials for single-walled GaN nanotubes which may be of interest for optoelectronics.

  14. Avian interactions with wind energy facilities: A summary

    SciTech Connect (OSTI)

    Colson, E.W. [Colson & Associates, Alamo, CA (United States)

    1995-12-31T23:59:59.000Z

    Currently, wind energy plants have been constructed or plans are being developed for projects in at least 13 states within the United States, also Canada, Sweden, Denmark, Germany, Netherlands, United Kingdom, Spain and Scotland (EPRI 1994, Winkelman 1994). Approximately, 16,000 wind turbines currently operate in California, making this area the largest concentration of wind energy development in the world. Notwithstanding its positive social values, wind energy has been shown to cause avian mortalities. Since the 1970`s many studies have been done to understand the interaction between wind energy development and birds. However our knowledge and understanding of bird interactions with wind energy development is incomplete.

  15. Susceptibilities with multi-quark interactions in PNJL model

    E-Print Network [OSTI]

    Abhijit Bhattacharyya; Paramita Deb; Anirban Lahiri; Rajarshi Ray

    2011-01-06T23:59:59.000Z

    We have investigated the fluctuations and the higher order susceptibilities of quark number, isospin number, electric charge and strangeness at vanishing chemical potential for 2+1 flavor Polyakov loop extended Nambu--Jona-Lasinio model. The calculations are performed for the bound effective potential in the quark sector requiring up to eight quark interaction terms. These have been contrasted to the lattice results which currently have somewhat heavier quarks in the light flavor sector. The results show sufficient qualitative agreement. For comparison we also present the results obtained with the conventional effective potential containing upto six quark interaction terms.

  16. Cosmological Signature of New Parity-Violating Interactions

    E-Print Network [OSTI]

    Arthur Lue; Limin Wang; Marc Kamionkowski

    1999-07-23T23:59:59.000Z

    Does Nature yield any manifestations of parity violation other than those observed in weak interactions? A map of the cosmic microwave background (CMB) temperature and polarization will provide a new signature of P violation. We give two examples of new P violating interactions, which may have something to do with Planck-scale physics, inflation, and/or quintessence, that would give rise to such a signature. Although these effects would most likely elude detection by MAP and the Planck Surveyor, they may be detectable with a future dedicated CMB polarization experiment.

  17. Generalized Gravitational Entropy of Interacting Scalar Field and Maxwell Field

    E-Print Network [OSTI]

    Wung-Hong Huang

    2014-11-11T23:59:59.000Z

    The generalized gravitational entropy proposed by Lewkowycz and Maldacena in recent is extended to the interacting real scalar field and Maxwell field system. Using the BTZ geometry we first investigate the case of free real scalar field and then show a possible way to calculate the entropy of the interacting scalar field. Next, we investigate the Maxwell field system. We exactly solve the wave equation and calculate the analytic value of the generalized gravitational entropy. We also use the Einstein equation to find the effect of backreaction of the Maxwell field on the area of horizon. The associated modified area law is consistent with the generalized gravitational entropy.

  18. Generalized Cosmic Chaplygin Gas Model with or without Interaction

    E-Print Network [OSTI]

    Writambhara Chakraborty; Ujjal Debnath; Subenoy Chakraborty

    2007-11-01T23:59:59.000Z

    Recently developed Generalized Cosmic Chaplygin gas (GCCG) is studied as an unified model of dark matter and dark energy. To explain the recent accelerating phase, the Universe is assumed to have a mixture of radiation and GCCG. The mixture is considered for without or with interaction. Solutions are obtained for various choices of the parameters and trajectories in the plane of the statefinder parameters and presented graphically. For particular choice of interaction parameter, we have shown the role of statefinder parameters in various cases for the evolution of the Universe.

  19. Quantum measurement of hyperfine interaction in nitrogen-vacancy center

    E-Print Network [OSTI]

    Kilhyun Bang; Wen Yang; L. J. Sham

    2012-05-23T23:59:59.000Z

    We propose an efficient quantum measurement protocol for the hyperfine interaction between the electron spin and the $^{15}$N nuclear spin of a diamond nitrogen-vacancy center. In this protocol, a sequence of quantum operations of successively increasing duration is utilized to estimate the hyperfine interaction with successively higher precision approaching the quantum metrology limit. This protocol does not need the preparation of the nuclear spin state. In the presence of realistic operation errors and electron spin decoherence, the overall precision of our protocol still surpasses the standard quantum limit.

  20. Refocusing dipolar interactions between electronic spins of donors in silicon

    E-Print Network [OSTI]

    T. S. Monteiro

    2014-12-08T23:59:59.000Z

    We note the existence of a set of magnetic field values where a simple Hahn echo sequence refocuses the dynamics of the full dipolar interaction, for spin systems of electron donors in silicon. As the refocussing occurs for both arbitrary coupling strengths and arbitrary times, these dipolar refocusing points (DRPs) offer new possibilities for regulating entanglement due to the always-on spin dipolar interaction. While the experimental effects of DRPs will be strongly diluted in the measured coherences of thermal (unpolarized) spin ensembles, we investigate possible signatures in coherence decays arising from a study of the combined effects of decoherence arising from instantaneous diffusion and direct flip-flops