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  1. White House Office of Science and Technology Policy Summer 2014 Internship Program Application Period

    Broader source: Energy.gov [DOE]

    The White House Office of Science and Technology Policy is currently accepting applications for its Summer 2014 Internship Program.  The application deadline is 11:59pm Friday, March 7.  Students...

  2. EA-1723: General Motors LLC Electric Drive Vehicle Battery and Component Manufacturing Initiative Application White Marsh, Maryland and Wixom, Michigan

    Broader source: Energy.gov [DOE]

    DOE’s Proposed Action is to provide GM with $105,387,000 in financial assistance in a cost sharing arrangement to facilitate construction and operation of a manufacturing facility to produce electric motor components and assemble an electric drive unit. This Proposed Action through the Vehicle Technologies Program will accelerate the development and production of electric-drive vehicle systems and reduce the United States’ consumption of petroleum. This Proposed Action will also meaningfully assist in the nation’s economic recovery by creating manufacturing jobs in the United States in accordance with the objectives of the Recovery Act.

  3. White Light Emitting Diode Development for General Illumination Applications

    SciTech Connect (OSTI)

    James Ibbetson

    2006-05-01

    This report contains a summary of technical achievements during a 3-year project aimed at developing the chip and packaging technology necessary to demonstrate efficient, high flux light-emitting diode (LED) arrays using Cree's gallium nitride/silicon carbide (GaN/SiC) LED technology as the starting point. Novel chip designs and fabrication processes are described that led to high power blue LEDs that achieved 310 mW of light output at 350 mA drive current, corresponding to quantum and wall plug efficiencies of 32.5% and 26.5%, respectively. When combined with phosphor, high power white LEDs with luminous output of 67 lumens and efficacy of 57 lumens per watt were also demonstrated. Advances in packaging technology are described that enabled compact, multi-chip white LED lamp modules with 800-1000 lumens output at efficacies of up to 55 lumens per watt. Lamp modules with junction-to-ambient thermal resistance as low as 1.7 C/watt have also been demonstrated.

  4. Salt marsh geomorphology: Physical and ecological effects on landform Keywords: salt marsh geomorphology; AGU Chapman Conference

    E-Print Network [OSTI]

    Fagherazzi, Sergio

    Editorial Salt marsh geomorphology: Physical and ecological effects on landform Keywords: salt marsh geomorphology; AGU Chapman Conference Evidence that the three-dimensional structure of salt marsh, and the ratio of marsh edge:marsh interior have all been shown to affect the distribution and density of salt

  5. Project Information Form Project Title White Paper on The application of permeable pavement with emphasis

    E-Print Network [OSTI]

    California at Davis, University of

    Project Information Form Project Title White Paper on The application of permeable pavement Project Depending on the type of surface pavement, permeable pavement can be termed as porous asphalt, pervious concrete, or interlocking concrete pavers. Because of their ability to reduce runoff volume

  6. Synthesis and optical properties of cadmium selenide quantum dots for white light-emitting diode application

    SciTech Connect (OSTI)

    Xu, Xianmei; Wang, Yilin; Gule, Teri; Luo, Qiang [School of Chemistry and Chemical Engineering, Guangxi University, Nanning 53000 (China); Zhou, Liya, E-mail: zhouliyatf@163.com [School of Chemistry and Chemical Engineering, Guangxi University, Nanning 53000 (China); Gong, Fuzhong [School of Chemistry and Chemical Engineering, Guangxi University, Nanning 53000 (China)

    2013-03-15

    Highlights: ? Stable CdSe QDs were synthesized by the one-step and two-level process respectively. ? The fabricated white LEDs show good white balance. ? CdSe QDs present well green to yellow band luminescence. ? CdSe QDs displayed a broad excitation band. - Abstract: Yellow light-emitting cadmium selenide quantum dots were synthesized using one-step and two-step methods in an aqueous medium. The structural luminescent properties of these quantum dots were investigated. The obtained cadmium selenide quantum dots displayed a broad excitation band suitable for blue or near-ultraviolet light-emitting diode applications. White light-emitting diodes were fabricated by coating the cadmium selenide samples onto a 460 nm-emitting indium gallium nitrite chip. Both samples exhibited good white balance. Under a 20 mA working current, the white light-emitting diode fabricated via the one-step and two-step methods showed Commission Internationale de l’Éclairage coordinates at (0.27, 0.23) and (0.27, 0.33), respectively, and a color rendering index equal to 41 and 37, respectively. The one-step approach was simpler, greener, and more effective than the two-step approach. The one-step approach can be enhanced by combining cadmium selenide quantum dots with proper phosphors.

  7. White food-type sorghum in direct-expansion extrusion applications 

    E-Print Network [OSTI]

    Acosta Sanchez, David

    2004-09-30

    ) December 2003 Major Subject: Food Science and Technology iii ABSTRACT White Food-Type Sorghum Performance in Direct-Expansion Extrusion Applications. (December 2003) David Acosta Sanchez, B.S., Instituto Tecnologico y de Estudios Superiores de... first grinding, the final grinding and total yield (considering decortication losses) ??????. 89 XXXI Particle size distribution (% weight) of whole and decorticated sorghums, corn and sorghum meals ??...??...??...??...??...?. 90 xii...

  8. Sediments in marsh ponds of the Gulf Coast Chenier Plain: effects of structural marsh management and salinity

    E-Print Network [OSTI]

    Afton, Alan D.

    Sediments in marsh ponds of the Gulf Coast Chenier Plain: effects of structural marsh management: impoundments, marsh sediments, ponds, salinity Abstract Physical characteristics of sediments in coastal marsh compositions of waterbird communities. Sediments in marsh ponds of the Gulf Coast Chenier Plain potentially

  9. FOREST MONITORING AT THE MARSH-BILLINGS-ROCKEFELLER

    E-Print Network [OSTI]

    Keeton, William S.

    FOREST MONITORING AT THE MARSH-BILLINGS-ROCKEFELLER NATIONAL HISTORICAL PARK. of the Interior, University of Vermont, National Park Service, Rubenstein School of Environment Marsh-Billings-Rockefeller and Natural Resources National Historical Park #12;Forest Monitoring at the Marsh

  10. Review: The World of the Salt Marsh: Appreciating and Protecting the Tidal Marshes of the Southeastern Atlantic Coast

    E-Print Network [OSTI]

    Miller, Ryder W.

    2013-01-01

    Review: The World of the Salt Marsh: Appreciating andCharles. The World of the Salt Marsh: Appreciating andseafood movement. World of the Salt Marsh can be a “Silent

  11. Sublimation-induced orbital perturbations of extrasolar active asteroids and comets: application to white dwarf systems

    E-Print Network [OSTI]

    Veras, Dimitri; Gaensicke, Boris T

    2015-01-01

    The metal budgets in some white dwarf (WD) atmospheres reveal that volatile-rich circumstellar bodies must both exist in extrasolar systems and survive the giant branch phases of stellar evolution. The resulting behaviour of these active asteroids or comets which orbit WDs is not well-understood, but may be be strongly influenced by sublimation due to stellar radiation. Here we develop a model, generally applicable to any extrasolar system with a main sequence or WD star, that traces sublimation-induced orbital element changes in approximately km-sized extrasolar minor planets and comets traveling within hundreds of au. We derive evolution equations on orbital timescales and for arbitrarily steep power-law sublimation dependencies on distance, and place our model in a Solar system context. We also demonstrate the importance of coupling sublimation and general relativity, and the orbital consequences of outgassing in arbitrary directions. We prove that nongravitational accelerations alone cannot result in orbi...

  12. Distribution and Invasion Potential of Limonium ramosissimum subsp. provinciale in San Francisco Estuary Salt Marshes

    E-Print Network [OSTI]

    Archbald, Gavin; Boyer, Katharyn E.

    2014-01-01

    of southern California coastal salt marshes: a communitygrowth and cation uptake of salt marsh plants. New Phytolof vegetation patterns in salt marshes of central Argentina.

  13. Application of U10Mo Fuel for Space Fission Power Applications - White Paper

    SciTech Connect (OSTI)

    James Werner

    2014-07-01

    A novel reactor design has been proposed for space applications to provide hundreds of watts to one or two kilowatts of electrical power. The reactor concept proposed uses the alloy U10Mo (uranium with 10 weight percent molybdenum) as the fuel. This fuel was selected for its high uranium density, high thermal conductivity, and excellent neutronic characteristics for this application. The core is surrounded by a BeO reflector. Heat is carried from the reactor by liquid metal heat pipes. A shadow shield of LiH tungsten is also utilized to reduce the neutron and gamma radiation dose to the rest of the spacecraft. This design represents a best effort at minimizing the complexity of the fission system and reducing the mass of the system. The compact nature of the block UMo core and BeO radial reflector allows the reactor diameter to be as small as practical while still meeting the neutronic and thermal power demands. This directly results in a reduced shield mass since the reactor diameter dictates the footprint of the radiation shield. The use of heat pipes offers a straightforward primary heat transport approach using proven liquid-metal heat pipe technology. Further, the elimination of a liquid core coolant system heat transport components, both at the reactor side and radiator side, contributes to reducing the total part-count and lowering system mass. The proposed reactor is using a fuel that is being developed by DOE, but there are significant differences in the fuels enrichment, operating conditions and the physical shape of the fuel itself. This paper attempts to highlight some of the basic consideration and needs that would be expected to be met in developing this fuel and qualifying it for use.

  14. Hydrodynamics and sediment transport in natural and beneficial use marshes 

    E-Print Network [OSTI]

    Kushwaha, Vaishali

    2006-10-30

    or siltation. The research reported here applies an engineering approach to analysis of tidal creeks in natural and beneficial use marshes of Galveston Bay. The hydrodynamic numerical model, DYNLET, was used to assess circulation in marsh channels. A...

  15. Sediment Supply and Marsh Development in the San Francisco Estuary

    E-Print Network [OSTI]

    Malamud-Roam, Frances

    2006-01-01

    3: 9.1.2003–8.31.2006 Sediment Supply and Marsh Developmentsources of inorganic sediments that maintain the marshes’activities have altered sediment transport in the delta and

  16. Geomorphic structure of tidal hydrodynamics in salt marsh creeks

    E-Print Network [OSTI]

    Fagherazzi, Sergio

    .1029/2007WR006289. 1. Introduction [2] Salt marshes are important transitional areas between terrestrial providing preferen- tial pathways for marsh flooding and drainage during the tidal cycle. Because

  17. Marsh Collapse Does Not Require Sea Level Rise

    E-Print Network [OSTI]

    Fagherazzi, Sergio

    Salt marshes are among the most productive ecosystems on Earth, providing nurseries for fish species and shelter and food for endangered birds. Salt marshes also mitigate the impacts of hurricanes and tsunamis, and sequester ...

  18. New York State Salt Marsh Restoration and Monitoring Guidelines

    E-Print Network [OSTI]

    #12;New York State Salt Marsh Restoration and Monitoring Guidelines prepared by: Nancy L. Niedowski;The Salt Marsh Restoration and Monitoring Guidelines were prepared under the National OceanicState,Division of CoastalResources,41 State Street,Albany, New York 12231. December 2000 #12;PREFACE All salt marsh

  19. JGI's Carbon Cycling Studies on Restored Marshes

    SciTech Connect (OSTI)

    Tringe, Susannah; Theroux, Susanna

    2015-06-02

    DOE Joint Genome Institute Metagenome Program Head, Susannah Tringe, and postdoc, Susie Theroux, discuss the lessons to be learned from studying the microbial diversity of marshes that have been converted to other uses, and are now being restored, as well as the potential impacts on the global carbon cycle.

  20. White Roofs

    ScienceCinema (OSTI)

    Chu, Steven

    2013-05-29

    Secretary Steven Chu discusses the benefits of switching to white roofs and light colored pavements.

  1. Invasive Spartina densiflora Brongn. Reduces Primary Productivity in a Northern California Salt Marsh

    E-Print Network [OSTI]

    Lagarde, Luc A.

    2012-01-01

    and Distichlis spicata in salt marshes at Humboldt Bay,Carolina Spartina alterniflora salt marsh. Estuaries 4:97-die-off of southern U.S. salt marshes. Science 310:1803-

  2. Multispectral Imaging At Columbus Salt Marsh Area (Shevenell...

    Open Energy Info (EERE)

    Multispectral Imaging At Columbus Salt Marsh Area (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Multispectral Imaging...

  3. Invasive Spartina densiflora Brongn. Reduces Primary Productivity in a Northern California Salt Marsh

    E-Print Network [OSTI]

    Lagarde, Luc A.

    2012-01-01

    alterniflora and benthic microalgae in salt marsh food webs:dynamics of benthic microalgae in salt marshes. Pages 81-106primary productivity of microalgae and cyanobacteria (Geider

  4. Levels of metals from salt marsh plants from Southern California, USA

    E-Print Network [OSTI]

    Hoyt, Kimberly Ann

    2009-01-01

    alterniflora and benthic microalgae in salt marsh foodalterniflora and benthic microalgae in salt marsh foodSpartina, but feed on microalgae (Currin,1990). Isotope

  5. Assessing the Performance of 5mm White LED Light Sources for Developing-Country Applications

    E-Print Network [OSTI]

    Mills, Evan

    2007-01-01

    with fluorescent lighting for off-grid applications in theProject includes an Off-Grid Lighting Technology Assessmentand the market success of off-grid lighting solutions for

  6. Rhodes Marsh Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

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

  7. Rhodes Marsh Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

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

  8. Teels Marsh Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

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

  9. Spatial and Temporal Dynamics of Salt Marsh Vegetation across Scales 

    E-Print Network [OSTI]

    Kim, Daehyun

    2010-10-12

    of submergence and, hence, waterlogging of marsh soils and plants, which has retarded ecological succession. At the mid-scale, spatial patterns of vegetation and environmental factors were examined across tidal creeks. Sites closer to tidal creeks, compared...

  10. EA-1723-S1: Draft Supplemental Environmental Assessment

    Office of Energy Efficiency and Renewable Energy (EERE)

    General Motors LLC Electric Drive Vehicle Battery and Component Manufacturing Initiative Application White Marsh, Maryland, and Wixom, Michigan

  11. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    Tidal Freshwater Marsh Sustainability in the Sacramento–Sanof pulsing events to sustainability. Estuaries Coasts 18:Evaluating tidal marsh sustainability in the face of sea-

  12. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    Francisco region. California Energy Commission. Publicationfour marshes in high and low energy fluvial environments asMarshes situated in high-energy zones were margin- ally more

  13. Axions and White Dwarfs

    E-Print Network [OSTI]

    J. Isern; S. Catalan; E. Garcia-Berro; M. Salaris; S. Torres

    2010-10-26

    White dwarfs are almost completely degenerate objects that cannot obtain energy from the thermonuclear sources and their evolution is just a gravothermal process of cooling. The simplicity of these objects, the fact that the physical inputs necessary to understand them are well identified, although not always well understood, and the impressive observational background about white dwarfs make them the most well studied Galactic population. These characteristics allow to use them as laboratories to test new ideas of physics. In this contribution we discuss the robustness of the method and its application to the axion case.

  14. Oil bioremediation in salt marsh mesocosms as influenced by nitrogen, phosphorus, and bacterial seeding 

    E-Print Network [OSTI]

    Wright, Alan Lee

    1995-01-01

    Glasshouse experiments were conducted to determine the effects of N and P fertilization and bacterial seeding on crude oil degradation in salt marsh mesocosms containing marsh soil and Spartina alterniflora. Fertilization with urea, NH4, and N03...

  15. Impact of bioaugmentation on crude oil degradation in salt-marsh-sediment microcosms 

    E-Print Network [OSTI]

    Neralla, Srinivasan

    1994-01-01

    Bioremediation is the method of choice for eliminating oil from marshes and is dependent on microorganisms capable of mineralizing oil. Because populations of oil degrading microorganisms are low in marshes there is a potential for increasing...

  16. Biophysical properties of salt marsh canopies — Quantifying plant stem flexibility and above ground biomass

    E-Print Network [OSTI]

    Rupprecht, F.; Möller, I.; Evans, B.; Spencer, T.; Jensen, K.

    2015-04-19

    the contribution of vegetation to the tidal flow and wave energy dissipation potential of marshes. However detailed information on these two key biophysical properties of salt marsh canopies is scarce. In this paper we present biophysical properties of four...

  17. Coastal Marsh Vegetation Dynamics of the East Bay of Galveston Bay, Texas 

    E-Print Network [OSTI]

    Johnson, Jeremy Scott

    2012-10-19

    The structure and function of coastal marshes results from a complex interaction of biotic and abiotic processes that continually influence the characteristics of marsh vegetation. A great deal of research has focused on how tidal processes...

  18. The Role of Population-based Diversity on Productivity: Considerations for Restored Spartina alterniflora Salt Marshes 

    E-Print Network [OSTI]

    Lee, Courtney T

    2014-08-13

    Plant genetic diversity can augment ecosystem functions in habitats with low plant species diversity. Salt marshes are typically species-depauperate, a condition that is exacerbated when marshes are restored with a single species such as Spartina...

  19. An experimental method to increase sediment supply to a salt marsh in subsidence dominated environments 

    E-Print Network [OSTI]

    Thomas, Robert C.

    2007-09-17

    of wave induced erosion and direct replacement of marsh substrate through terracing. The restoration project did not address the potential for marsh lost to submergence. As an alternative to geotubes or more permanent breakwater methods, a submerged...

  20. Infaunal abundance in restored and reference marshes of the northwestern Gulf of Mexico 

    E-Print Network [OSTI]

    Davis, Brittney

    2011-05-04

    Creation Efforts. Estuaries and Coasts 14: 1-16 Sacco JN, Seneca ED, Wentworth TR (1994) Infaunal Community Development of Artificially Established Salt Marshes in North Carolina. Estuaries 17:489. Sandnes J,Forbes T, Hansen R, Rygg B (2000) Bioturbation... half of the salt and brackish marshes in the northern Gulf of Mexico (GOM) have been reduced to open water. A widely accepted approach to mitigate the loss of valuable ecological services is the construction of new marsh habitat. Marsh construction...

  1. Flow, Sedimentation, and Biomass Production on a Vegetated Salt Marsh in South Carolina

    E-Print Network [OSTI]

    Mudd, Simon Marius

    . Introduction Vegetated salt marshes are a common feature along tectonically quiescent coastal mar- gins9 Flow, Sedimentation, and Biomass Production on a Vegetated Salt Marsh in South Carolina: Toward, sedimentation, and plant community evolution on a salt marsh populated by Spartina alterniflora is deve- loped

  2. A potential mechanism for disturbance-mediated channel migration in a southeastern United States salt marsh

    E-Print Network [OSTI]

    Lottig, Noah R.

    salt marsh Noah R. Lottig, Justin M. Fox University of Wisconsin-Madison Center for Limnology 680 North September 2006; accepted 8 September 2006 Available online 27 October 2006 Abstract Coastal salt marsh tidal Elsevier B.V. All rights reserved. Keywords: Wrack; Disturbance; Salt marsh tidal creek; Channel migration

  3. Assessing Functional Equivalency of Nekton Habitat in Enhanced Habitats: Comparison of Terraced and Unterraced Marsh Ponds

    E-Print Network [OSTI]

    Nyman, John

    and Unterraced Marsh Ponds MEGAN K. LA PEYRE1, *, BRYAN GOSSMAN2 , and JOHN A. NYMAN2 1 U.S. Geological Survey and quality. Using shallow water ponds rehabilitated with a technique called marsh terracing, we examined quality. We examined three paired terraced and unterraced marsh ponds in southwest Louisiana. Nekton

  4. Wave attenuation over coastal salt marshes under storm surge conditions

    E-Print Network [OSTI]

    Möller, Iris; Kudella, Matthias; Rupprecht, Franziska; Spencer, Tom; Paul, Maike; van Wesenbeeck, Bregje K.; Wolters, Guido; Jensen, Kai; Bouma, Tjeerd J.; Miranda-Lange, Martin; Schimmels, Stefan

    2014-09-29

    in geotextile at a 157 distance of 108m from the wave paddle and illuminated to prevent plant deterioration when 158 exposed. Adjacent to the front and rear end of the vegetated test section, a flat concrete surface 159 and ramped concrete slope allowed... geotextile. The experiment could not be scheduled prior to autumn 2013 and marsh blocks were 331 stored outdoors in appropriate temperature/moisture conditions and with fences to control for 332 herbivory for 14 months. For marsh construction in the flume...

  5. Middle to Late Holocene Fluctuations of C3 and C4 Vegetation in a Northern New England Salt Marsh, Sprague Marsh, Phippsburg Maine

    SciTech Connect (OSTI)

    Johnson, B J; Moore, K A; Lehmann, C; Bohlen, C; Brown, T A

    2006-05-26

    A 3.1 meter sediment core was analyzed for stable carbon isotope composition of organic matter and higher plant leaf wax (HPLW) lipid biomarkers to determine Holocene shifts in C{sub 3} (higher high marsh) and C{sub 4} (low and/or high marsh) plant deposition at the Sprague River Salt Marsh, Phippsburg, Maine. The carbon isotope composition of the bulk sediment and the HPLW parallel each other throughout most of the core, suggesting that terrestrial plants are an important source of organic matter to the sediments, and diagenetic alteration of the bulk sediments is minimal. The current salt marsh began to form 2500 cal yr BP. Low and/or high C{sub 4} marsh plants dominated deposition at 2000 cal yr BP, 700 cal yr BP, and for the last 200 cal yr BP. Expansion of higher high marsh C{sub 3} plants occurred at 1300 and 600 cal yr BP. These major vegetation shifts result from a combination of changes in relative sea-level rise and sediment accumulation rates. Average annual carbon sequestration rates for the last 2500 years approximate 40 g C yr{sup -1} m{sup -2}, and are in strong agreement with other values published for the Gulf of Maine. Given that Maine salt marshes cover an area of {approx}79 km{sup 2}, they represent an important component of the terrestrial carbon sink. More detailed isotopic and age records from a network of sediment cores at Sprague Marsh are needed to truly evaluate the long term changes in salt marsh plant communities and the impact of more recent human activity, including global warming, on salt marsh vegetation.

  6. White light emitting diode as liquid crystal display backlight

    E-Print Network [OSTI]

    Soon, Chian Myau

    2007-01-01

    The discovery of high brightness (white) light emitting diode (LED) is considered as a real threat to the current lighting industry in various applications. One of the most promising sectors would be using white LED to ...

  7. Updated distribution and reintroduction of the Lower Keys marsh rabbit 

    E-Print Network [OSTI]

    Faulhaber, Craig Alan

    2005-02-17

    , for their advice and interest in the project. Kim Rohrs of the Monroe County Department of Planning and Environmental Resources provided valuable spatial and tabular data on land ownership and land-use planning in the Keys. My interns, Josh Harris, Kyle........................ 29 3.1 The number of individual Lower Keys marsh rabbits captured in 13 occupied populations on 4 keys from October 2001?August 2002. Data are arranged according to sex and age class...

  8. Structural Data for the Columbus Salt Marsh Geothermal Area - GIS Data

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

    Faulds, James E.

    - Columbus Marsh therefore corresponds to an area of enhanced extension and contains a nexus of fault intersections, both conducive for geothermal activity.

  9. Structural Data for the Columbus Salt Marsh Geothermal Area - GIS Data

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

    Faulds, James E.

    2011-12-31

    - Columbus Marsh therefore corresponds to an area of enhanced extension and contains a nexus of fault intersections, both conducive for geothermal activity.

  10. THE GEOMETRY OF BRAUER GRAPH ALGEBRAS AND CLUSTER ROBERT J. MARSH AND SIBYLLE SCHROLL

    E-Print Network [OSTI]

    Marsh, Robert J.

    author. 1 #12;2 MARSH AND SCHROLL sense. We may also consider the dual graph of the m-angulation, which

  11. Regulation of benthic algal and animal communities by salt marsh plants: Impact of shading

    E-Print Network [OSTI]

    Whitcraft, Christine R.; Levin, Lisa A.

    2007-01-01

    of marine wetland microalgae and photosyn- thetic bacteria:concentrating mechanisms in microalgae. Canadian Journal ofalterni?ora and benthic microalgae in salt marsh food webs:

  12. Drought legacies influence the long-term carbon balance of a freshwater marsh

    E-Print Network [OSTI]

    Rocha, Adrian V.; Goulden, Michael L.

    2010-01-01

    photosynthetic carbon sequestration, primarily by inhibitingof the maximum annual carbon sequestration observed over aimpact on marsh carbon sequestration. Citation: Rocha, A.

  13. NGNP High Temperature Materials White Paper

    SciTech Connect (OSTI)

    Lew Lommers; George Honma

    2012-08-01

    This white paper is one in a series of white papers that address key generic issues of the combined construction and operating license (COL) pre-application program key generic issues for the Next Generation Nuclear Plant reactor using the prismatic block fuel technology. The purpose of the pre-application program interactions with the NRC staff is to reduce the time required for COL application review by identifying and addressing key regulatory issues and, if possible, obtaining agreements for their resolution

  14. White sponge nevus

    E-Print Network [OSTI]

    Dadlani, Chicky; Mengden, Stephanie; Kerr, A Ross

    2008-01-01

    keratinization [ 16 ]. Although WSN is painless, patientsComment White sponge nevus (WSN), which was described byinstability [ 7 , 8 ]. Lesions of WSN appear as white-to-

  15. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    tidal freshwater marsh sites in the Delta Site name Coordinates Area (ha) Elevation above MSL (cm) Salinity regime Energy

  16. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    Table 1 Location and basic characteristics of tidal freshwater marsh sites in the Delta Site name Coordinates

  17. Using Marker Horizons and Cryogenic Coring to Monitor Sediment Deposition in Salt Marshes of the Bay of Fundy

    E-Print Network [OSTI]

    Chmura, Gail L.

    marsh samples has advantages over other coring methods. By freezing the salt marsh soil in CryogenicUsing Marker Horizons and Cryogenic Coring to Monitor Sediment Deposition in Salt Marshes that has accumulated over the marker horizon is measured. Cryogenic coring is one method of extracting

  18. Nekton of New Seagrass Habitats Colonizing a Subsided Salt Marsh in Galveston Bay, Texas

    E-Print Network [OSTI]

    Nekton of New Seagrass Habitats Colonizing a Subsided Salt Marsh in Galveston Bay, Texas SETH P Delwood Beach Road, Panama City, Florida 32408 ABSTRACT: Subsidence and erosion of intertidal salt marsh on this system is the extrac- tion of subsurface oil, gas, and water resources that has caused land subsidence

  19. Critical bifurcation of shallow microtidal landforms in tidal flats and salt marshes

    E-Print Network [OSTI]

    Fagherazzi, Sergio

    Critical bifurcation of shallow microtidal landforms in tidal flats and salt marshes Sergio by the Editorial Board April 14, 2006 (received for review September 25, 2005) Shallow tidal basins are characterized by extensive tidal flats and salt marshes that lie within specific ranges of elevation, whereas

  20. Electrophoretic Deposition of Highly Efficient Phosphors for White Solid State Lighting using near UV-Emitting LEDs /

    E-Print Network [OSTI]

    Choi, Jae Ik

    2014-01-01

    application in white light emitting diode,” J. Mater. Res. ,S.Y. Choi. “White light-emitting diodes of GaN-based Sr 2phosphor for white light-emitting diodes prepared by sol–gel

  1. Distribution of polycyclic aromatic hydrocarbons (PAH's) in marsh sediments, Iraq

    SciTech Connect (OSTI)

    Al-Saad, H.T.; Al-Timari, A.A. (Univ. of Basrah (Iraq))

    1989-12-01

    Recently there has been a growing concern in the release of harmful organics into the environment. Carcinogenic polycyclic aromatic hydrocarbons (PAH's) are a class of compounds of interset due to their possible harmful effects to man as well as organisms. Anthropogenic PAH's may reach aquatic environment as a result of both industrial and domestic effluents, deposition of airborne particles, surface runoff and oil spillage. Having a relatively low water solubility and high affinity to sorb to the suspended particulate matter, most of the PAH's introduced to the aquatic environment tend to accumulate in bottom sediments. Sedimentary PAH's may thus provide a record of the input and history of these pollutants. Consequently, the distribution of PAH's in aquatic sediments have received considerable attention. The purpose of the present work was to establish the distribution of PAH's in the sediments of the marsh region located in southern Iraq.

  2. Effects of Nutrient Additions on Three Coastal Salt Marsh Plants Found in Sunset Cove, Texas 

    E-Print Network [OSTI]

    Rulon, Leslie

    2012-02-14

    Eutrophication, particularly due to nitrogen (N) and phosphorus (P) input, has been massively altered by anthropogenic activities. Thus it is important to understand the impact on salt marsh plants; however studies on salt ...

  3. How does vegetation affect sedimentation on tidal marshes? Investigating particle capture and hydrodynamic controls

    E-Print Network [OSTI]

    Mudd, Simon Marius

    How does vegetation affect sedimentation on tidal marshes? Investigating particle capture stems, or enhanced settling due to a reduction in turbulent kinetic energy within flows through kinetic energy in the fertilized canopy. Our newly developed models of biologically mediated sedimentation

  4. The effects of cattle grazing on Texas coastal salt marsh plants and birds 

    E-Print Network [OSTI]

    Yeargan, Catherine A

    2001-01-01

    Cattle grazing effects on plants and birds were examined in Spartina alterniflora-dominated marsh and adjacent Sporobolus virginicus-dominated hummocks within high tidal flats on Galveston Island, Texas. Grazed and ungrazed treatments were...

  5. Effects of chemical additives on hydrocarbon disappearance and biodegradation in freshwater marsh microcosms

    E-Print Network [OSTI]

    Nyman, John

    determined the concentration of four total petroleum hydrocarbon (TPH) measures and 43 target hydro- carbonsEffects of chemical additives on hydrocarbon disappearance and biodegradation in freshwater marsh 2006 Hydrocarbon disappearance and biodegradation were insensitive to common commercial additives

  6. Historical rates of salt marsh accretion on the outer Bay of Fundy

    E-Print Network [OSTI]

    Chmura, Gail L.

    on sheltered marine and estuarine coastlines. Over 33 000 ha of salt marshes are found along the coast habitats on Earth, with rates of primary productivity comparable with those of agricultural systems

  7. Quantification of Salt Marsh Carbon Stocks: Integration of Remote Sensing Data and Techniques with Field Measurements 

    E-Print Network [OSTI]

    Kulawardhana, Ranjani W

    2013-12-02

    in this study show the capability of remote sensing data for the characterization of salt marsh terrain and vegetation heights and the estimation of above-ground biomass quantities. The best biomass prediction models using lidar heights reported considerably...

  8. Vegetation and sediment characteristics of created and natural Spartina alterniflora marshes in Lower Galveston Bay, Texas 

    E-Print Network [OSTI]

    Albertson, Andrea Kai

    1998-01-01

    Five natural and ten created Spartina altemiflora marshes in the Lower Galveston Bay System, Texas, were compared to determine if there were significantly different vegetative and sediment characteristics associated with ...

  9. The Lower Keys marsh rabbit and silver rice rat: steps toward recovery 

    E-Print Network [OSTI]

    Perry, Neil Desmond

    2006-10-30

    -1 LOWER KEYS MARSH RABBIT AND THE SILVER RICE RAT: STEPS TOWARDS RECOVERY A Thesis by NEIL DESMOND PERRY 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 August 2006 Major Subject: Wildlife and Fisheries Sciences LOWER KEYS MARSH RABBIT AND THE SILVER RICE RAT: STEPS TOWARDS RECOVERY A Thesis by NEIL DESMOND PERRY Submitted to the Office...

  10. An internship with the Galveston Bay Foundation emphasizing Coastal Marsh Restoration with Spartina alterniflora 

    E-Print Network [OSTI]

    Mahmoud, Joey

    1996-01-01

    Record of Study An Internship with the Galveston Bay Foundation Emphasizing Coastal Marsh Restoration with Spartina alterrsiflora A PROFESSIONAL PAPER by Joey Mahmoud Submitted to the College of Agriculture of Texas ASM University in partial... fulfillment of the requirements for the degree of MASTER OF AGRICULTURE May 1996 Rangeland Ecology and Management An Internship with the Galveston Bay Foundation Emphasizing Coastal Marsh Restoration with Spartina alterniflora A PROFESSIONAL PAPER...

  11. Tidal salt marshes of the southeast Atlantic Coast: A community profile

    SciTech Connect (OSTI)

    Wiegert, R.G.; Freeman, B.J.

    1990-09-01

    This report is part of a series of community profiles on the ecology of wetland and marine communities. This particular profile considers tidal marshes of the southeastern Atlantic coast, from North Carolina south to northern Florida. Alone among the earth's ecosystems, coastal communities are subjected to a bidirectional flooding sometimes occurring twice each day; this flooding affects successional development, species composition, stability, and productivity. In the tidally influenced salt marsh, salinity ranges from less than 1 ppt to that of seawater. Dominant plant species include cordgrasses (Spartina alterniflora and S. cynosuroides), black needlerush (Juncus romerianus), and salt marsh bulrush (Scirpus robustus). Both terrestrail and aquatic animals occur in salt marshes and include herons, egrets ospreys (Pandion haliaetus), bald eagles (Haliaeetus leucocephalus), alligators (Alligator Mississippiensis), manatees (Trichecus manatus), oysters, mussels, and fiddler crabs. Currently, the only significant direct commercial use of the tidal salt marshes is by crabbers seeking the blue crab Callinectes sapidus, but the marshes are quite important recreationally, aesthetically, and educationally. 151 refs., 45 figs., 6 tabs.

  12. You have printed the following article: Relationships between Vegetation Zonation and Altitude in a Salt-Marsh System in

    E-Print Network [OSTI]

    Medrano, Mónica

    Vegetation Zonation and Altitude in a Salt-Marsh System in Northwest Spain J. M. Sánchez; J. Izco; M. Medrano Zonation in North Carolina Salt Marshes David A. Adams Ecology, Vol. 44, No. 3. (Jul., 1963), pp. 445-0147%28199310%29142%3A4%3C718%3ACAFIMP%3E2.0.CO%3B2-6 Studies in Salt-Marsh Ecology Sections I to III V. J. Chapman

  13. PEAT ACCRETION HISTORIES DURING THE PAST 6000 YEARS IN MARSHES OF THE SACRAMENTO - SAN JOAQUIN DELTA, CALIFORNIA, USA

    SciTech Connect (OSTI)

    Drexler, J Z; de Fontaine, C S; Brown, T A

    2009-07-20

    Peat cores were collected in 4 remnant marsh islands and 4 drained, farmed islands throughout the Sacramento - San Joaquin Delta of California in order to characterize the peat accretion history of this region. Radiocarbon age determination of marsh macrofossils at both marsh and farmed islands showed that marshes in the central and western Delta started forming between 6030 and 6790 cal yr BP. Age-depth models for three marshes were constructed using cubic smooth spline regression models. The resulting spline fit models were used to estimate peat accretion histories for the marshes. Estimated accretion rates range from 0.03 to 0.49 cm yr{sup -1} for the marsh sites. The highest accretion rates are at Browns Island, a marsh at the confluence of the Sacramento and San Joaquin rivers. Porosity was examined in the peat core from Franks Wetland, one of the remnant marsh sites. Porosity was greater than 90% and changed little with depth indicating that autocompaction was not an important process in the peat column. The mean contribution of organic matter to soil volume at the marsh sites ranges from 6.15 to 9.25% with little variability. In contrast, the mean contribution of inorganic matter to soil volume ranges from 1.40 to 8.45% with much greater variability, especially in sites situated in main channels. These results suggest that marshes in the Delta can be viewed as largely autochthonous vs. allochthonous in character. Autochthonous sites are largely removed from watershed processes, such as sediment deposition and scour, and are dominated by organic production. Allochthonous sites have greater fluctuations in accretion rates due to the variability of inorganic inputs from the watershed. A comparison of estimated vertical accretion rates with 20th century rates of global sea-level rise shows that currently marshes are maintaining their positions in the tidal frame, yet this offers little assurance of sustainability under scenarios of increased sea-level rise in the future.

  14. Spring phytoplankton dynamics in a shallow, turbid coastal salt marsh system undergoing extreme salinity variation, South Texas 

    E-Print Network [OSTI]

    Hebert, Elizabeth Michele

    2005-08-29

    The contribution of phytoplankton productivity to higher trophic levels in salt marshes is not well understood. My study furthers our understanding of possible mechanisms controlling phytoplankton productivity, abundance, ...

  15. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    and impounded marshes for subsidence mitigation, Sacramento–Prokopovich NP. 1985. Subsidence of peat in California andelevation change from subsidence and iso- static adjustment,

  16. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    Milan CS. 2012. Carbon sequestration and sediment accretionaccre- tion and carbon sequestration in impounded marshes on2010) recorded carbon sequestration rates between 1,200 to

  17. Strong blue and white photoluminescence emission of BaZrO{sub 3} undoped and lanthanide doped phosphor for light emitting diodes application

    SciTech Connect (OSTI)

    Romero, V.H.; De la Rosa, E.; Salas, P.; Velazquez-Salazar, J.J.

    2012-12-15

    In this paper, we report the obtained strong broadband blue photoluminescence (PL) emission centered at 427 nm for undoped BaZrO{sub 3} observed after 266 nm excitation of submicron crystals prepared by hydrothermal/calcinations method. This emission is enhanced with the introduction of Tm{sup 3+} ions and is stronger than the characteristic PL blue emission of such lanthanide. The proposed mechanism of relaxation for host lattice emission is based on the presence of oxygen vacancies produced during the synthesis process and the charge compensation due to the difference in the electron valence between dopant and substituted ion in the host. Brilliant white light emission with a color coordinate of (x=0.29, y=0.32) was observed by combining the blue PL emission from the host with the green and red PL emission from Tb{sup 3+} and Eu{sup 3+} ions, respectively. The color coordinate can be tuned by changing the ratio between blue, green and red band by changing the concentration of lanthanides. - Graphical abstract: Strong blue emission from undoped BaZrO{sub 3} phosphor and white light emission by doping with Tb{sup 3+} (green) and Eu{sup 3+} (red) after 266 nm excitation. Highlights: Black-Right-Pointing-Pointer Blue emission from BaZrO{sub 3} phosphor. Black-Right-Pointing-Pointer Blue emission enhanced with Tm{sup 3+}. Black-Right-Pointing-Pointer White light from BaZrO{sup 3+} phosphor.

  18. Electronic Monitoring White Papers

    E-Print Network [OSTI]

    Electronic Monitoring White Papers February 15, 2013 Source: NOAA Fisheries Office of Policy & Electronic Monitoring Working Group U.S. Department of Commerce National Oceanic & Atmospheric Administration.holliday@noaa.gov #12;B-1 Appendix B - Electronic Monitoring White Paper Existing Technologies National Oceanic

  19. Impact of dynamic feedbacks between sedimentation, sea-level rise, and biomass production on near-surface marsh stratigraphy and carbon accumulation

    E-Print Network [OSTI]

    Mudd, Simon Marius

    -surface marsh stratigraphy and carbon accumulation Simon M. Mudd a,*, Susan M. Howell b , James T. Morris c model we explore how marsh stratigraphy responds to sediment supply and the rate of sea- level rise. It is calibrated and tested using an extensive data set of both marsh stratigraphy and measurements of vegetation

  20. Luminescent properties of Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} and its potential application in white light emitting diodes

    SciTech Connect (OSTI)

    Wang, Zhijun; Li, Panlai; Li, Ting; Zhang, Xing; Li, Qingxuan; Yang, Zhiping; Guo, Qinglin

    2013-06-01

    Graphical abstract: Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} phosphor can be effectively excited by an ultraviolet and near-ultraviolet light, and produce a bright blue emission centered at 436 nm. The CIE chromaticity coordinations (x, y) of Na{sub 2}CaSiO{sub 4}:Eu{sup 2+}(NSCE)/Li{sub 2}SrSiO{sub 4}:Eu{sup 2+}(LSSE) vary with the molar ratio of the two constituents. When NSCE/LSSE is 1:3, the CIE chromaticity coordination is (0.332, 0.346), which is close to that of the natural sunlight (0.33, 0.33). The results indicate that Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} may be a promising blue phosphor for UV chip-based multi-phosphor converted white light emitting diodes. Highlights: ? Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} shows the blue emission with a peak at 436 nm and broad excitation band in the UV/n-UV range. ? White light with CIE coordinates (0.332, 0.346) is generated by mixing the blue phosphor with the Li{sub 2}SrSiO{sub 4}:Eu{sup 2+} yellow phosphor. ? Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} would be a promising blue phosphor candidate for UV chip-based multi-phosphor converted white LEDs. - Abstract: A novel blue phosphor Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} is synthesized by a high temperature solid-state reaction, and its luminescent properties are systematically studied. Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} can be effectively excited by the 354 nm radiation, and create blue emission (436 nm). The emission intensity of Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} is influenced by the Eu{sup 2+} doping content, and the optimal doping content is 1.5%, and the concentration quenching mechanism of Eu{sup 2+} in Na{sub 2}CaSiO{sub 4} can be attributed to the multipolar interaction. The white light with CIE coordinates (0.332, 0.346) is generated by mixing the blue phosphor Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} with the yellow phosphor Li{sub 2}SrSiO{sub 4}:Eu{sup 2+}. The results indicate that Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} may be a potential blue emitting phosphor for UV chip-based multi-phosphor converted white light emitting diodes.

  1. How tall is the White Ash tree? White Ash tree

    E-Print Network [OSTI]

    Ashline, George

    How tall is the White Ash tree? White Ash tree Sapling Activity Tree location Try this: · Measure the length of the White Ash's shadow on a nice sunny day. Place the end of your measuring tape at the base of the shadow. Record the length on your paper. · Next measure your shadow. Stand next to the White Ash and have

  2. Six years of monitoring annual changes in a freshwater marsh with SPOT HRV data

    SciTech Connect (OSTI)

    Mackey, H.E. Jr.

    1992-12-01

    Fifteen dates of spring-time SPOT HRV data along with near-concurrent vertical aerial photographic and phenological data from spring 1987 through spring 1992 were analyzed to monitor annual changes in a 150-hectare, southeastern floodplain marsh. The marsh underwent rapid changes during the six years from a swamp dominated by non-persistent, thermally tolerant macrophytes to persistent macrophyte and shrub-scrub communities as reactor discharges declined to Pen Branch. Savannah River flooding was also important in the timing of the shift of these wetland communities. SPOT HRV data proved to be an efficient and effective method to monitor trends in these wetland community changes.

  3. Six years of monitoring annual changes in a freshwater marsh with SPOT HRV data

    SciTech Connect (OSTI)

    Mackey, H.E. Jr.

    1992-01-01

    Fifteen dates of spring-time SPOT HRV data along with near-concurrent vertical aerial photographic and phenological data from spring 1987 through spring 1992 were analyzed to monitor annual changes in a 150-hectare, southeastern floodplain marsh. The marsh underwent rapid changes during the six years from a swamp dominated by non-persistent, thermally tolerant macrophytes to persistent macrophyte and shrub-scrub communities as reactor discharges declined to Pen Branch. Savannah River flooding was also important in the timing of the shift of these wetland communities. SPOT HRV data proved to be an efficient and effective method to monitor trends in these wetland community changes.

  4. Nutrient dynamics in marsh sediments contaminated by an oil spill following a flood 

    E-Print Network [OSTI]

    Harris, Benjamin Cord

    1997-01-01

    This research involves a study of the natural recovery of a brackish marsh impacted by an oil spill and fire in which the area was naturally enhanced with elevated nutrient levels. Flood waters during October, 1994, ruptured a group of pipelines...

  5. Net ecosystem methane and carbon dioxide exchanges in a Lake Erie coastal marsh

    E-Print Network [OSTI]

    Chen, Jiquan

    Net ecosystem methane and carbon dioxide exchanges in a Lake Erie coastal marsh and a nearby ecosystem carbon dioxide (FCO2) and methane (FCH4) exchanges were measured by using the eddy covariance ) at the cropland. At the seasonal scale, soil temperature associated with methane (CH4) production provided

  6. The contribution of mangrove expansion to salt marsh loss on the Texas Gulf coast 

    E-Print Network [OSTI]

    Armitage, Anna R.; Highfield, Wesley E.; Brody, Samuel D.; Louchouarn, Patrick

    2015-05-06

    to mangrove expansion into areas previously occupied by salt marsh plants. On the Texas (USA) coast of the western Gulf of Mexico, most cases of mangrove expansion have been documented within specific bays or watersheds. Based on this body of relatively small...

  7. Composition of Fish Communities in a European Macrotidal Salt Marsh (the Mont Saint-Michel Bay,

    E-Print Network [OSTI]

    Boyer, Edmond

    Composition of Fish Communities in a European Macrotidal Salt Marsh (the Mont Saint-Michel Bay At least 100 fish species are known to be present in the intertidal areas (estuaries, mudflats and salt, such as estuaries and lagoons, play a nursery role for many fish species. However, in Europe little attention has

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

    E-Print Network [OSTI]

    Whitehead, Andrew

    -seq | toxicogenomics Following the Deepwater Horizon (DWH) drilling disaster on April 20, 2011, in the Gulf of MexicoGenomic and physiological footprint of the Deepwater Horizon oil spill on resident marsh fishes June 13, 2011) The biological consequences of the Deepwater Horizon oil spill are unknown, especially

  9. The use of TM imagery to monitor the general health of coastal marshes 

    E-Print Network [OSTI]

    De Sousa, David Alexandre

    1994-01-01

    , in that two varied sources of information, offer more information to be processed in a GIS. Errors are modelled out of the change-detection process; thus more accurate and reliable assessments concerning marsh health are possible. The traditional 2-layer...

  10. ASTRO-H White Paper - White Dwarf

    E-Print Network [OSTI]

    Mukai, K; Harayama, A; Hayashi, T; Ishida, M; Long, K S; Terada, Y; Tsujimoto, M

    2014-01-01

    Interacting binaries in which a white dwarf accretes material from a companion --- cataclysmic variables (CVs) in which the mass loss is via Roche-lobe overflow, and symbiotic stars in which the white dwarf captures the wind of a late type giant --- are relatively commonplace. They display a wide range of behaviors in the optical, X-rays, and other wavelengths, which still often baffles observers and theorists alike. They are likely to be a significant contributor to the Galactic ridge X-ray emission, and the possibility that some CVs or symbiotic stars may be the progenitors of some of the Type Ia supernovae deserves serious consideration. Furthermore, these binaries serve as excellent laboratories in which to study physics of X-ray emission from high density plasma, accretion physics, reflection, and particle acceleration. ASTRO-H is well-matched to the study of X-ray emission from many of these objects. In particular, the excellent spectral resolution of the SXS will enable dynamical studies of the X-ray e...

  11. White light velocity interferometer

    DOE Patents [OSTI]

    Erskine, D.J.

    1999-06-08

    The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s. 41 figs.

  12. White House Tribal Nations Conference

    Broader source: Energy.gov [DOE]

    The White House will host the seventh annual Tribal Nations Conference to allow tribal leaders to engage with the President, cabinet officials, and the White House Council on Native America Affairs about key issues facing tribes.

  13. Synthesis and photoluminescence properties of NaLaMgWO{sub 6}:RE{sup 3+} (RE = Eu, Sm, Tb) phosphor for white LED application

    SciTech Connect (OSTI)

    Hou, Jingshan [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China) [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China); CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Yin, Xin [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China) [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Huang, Fuqiang, E-mail: huangfq@mail.sic.ac.cn [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China) [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Jiang, Weizhong, E-mail: jwzh@dhu.edu.cn [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China)] [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China)

    2012-06-15

    Highlights: ? NaLa{sub 1?x}MgWO{sub 6}:xRE{sup 3+} phosphors were synthesized by solid-state reaction method. ? Compared with Y{sub 2}O{sub 3}:Eu{sup 3+}, NaLaMgWO{sub 6}:Eu{sup 3+} performed better luminescence properties. ? The results demonstrated NaLaMgWO{sub 6} as a suitable host for RE{sup 3+}-doping. -- Abstract: Single phase of NaLa{sub 1?x}MgWO{sub 6}:xRE{sup 3+} (0 < x ?1) (RE = Eu, Sm, Tb) phosphors were prepared by solid-state reaction method. X-ray diffraction, scanning electron microscopy, the morphology energy-dispersive X-ray spectroscopy, UV–vis diffuse reflectance spectra and photoluminescence were used to characterize the samples. Under the light excitation, NaLaMgWO{sub 6}:Eu{sup 3+}, NaLaMgWO{sub 6}:Sm{sup 3+} and NaLaMgWO{sub 6}:Tb{sup 3+}, phosphors showed the characteristic emissions of Eu{sup 3+} ({sup 5}D{sub 0} ? {sup 7}F{sub 4,3,2,1}), Sm{sup 3+} ({sup 4}G{sub 5/2} ? {sup 6}H{sub 5/2,7/2,9/2}), and Tb{sup 3+} ({sup 5}D{sub 4} ? {sup 7}F{sub 6,5,4,3}), respectively. The intensity of the red emission for Na(La{sub 0.6}Eu{sub 0.4})MgWO{sub 6} is 2.5 times higher than that of (Y{sub 0.95}Eu{sub 0.05}){sub 2}O{sub 3} under blue light irradiation. The quantum efficiencies of the entitled phosphors excited under 394 nm and 464 nm are also investigated and compared with commercial phosphors Y{sub 2}O{sub 3}:Eu{sup 3+}, Sr{sub 2}Si{sub 5}N{sub 8}:Eu{sup 2+} and Y{sub 3}A{sub 5}G{sub 12}:Ce{sup 3+}. The results demonstrated NaLaMgWO{sub 6}:RE{sup 3+} phosphors as potential candidates for white light emitting diode pumped by UV or blue chip.

  14. White House Tribal Youth Gathering

    Broader source: Energy.gov [DOE]

    The White House will host the first-ever White House Tribal Youth Gathering to provide American Indian and Alaska Native youth from across the country the opportunity to interact directly with senior Administration officials and the White House Council on Native American Affairs. Registration is due May 8, 2015.

  15. Unraveling Sources of Food Web Support in the Sacramento-San Joaquin Delta’s Marsh Ecosystem

    E-Print Network [OSTI]

    Howe, Emily

    2014-01-01

    Delta Science Conference, Sacramento, Calif. Young, M. , K.Delta Science Conference, Sacramento, Calif. Howe, E. andfood web support in the Sacramento-San Joaquin Delta’s marsh

  16. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Gursimran Singh, Nikola Radoicic, Riley Marsh, Shruti Kapoor

    E-Print Network [OSTI]

    UBC Social Ecological Economic Development Studies (SEEDS) Student Report Gursimran Singh, Nikola Radoicic Gursimran Singh Riley Marsh Shruti Kapoor 1 #12;Abstract This report uses the triple bottom line

  17. The effect of cattle grazing on the abundance and distribution of selected macroinvertebrates in west Galveston Island salt marshes 

    E-Print Network [OSTI]

    Martin, Jennifer Lynn

    2004-09-30

    bidentatus) was evaluated over four seasons (summer 2000, fall 2000, winter 2001, and spring 2001) in grazed and ungrazed treatments. A Galveston Island salt marsh adjacent to Snake Island Cove was sampled at five elevations, from the water's edge...

  18. Alameda Song Sparrow Abundance Related to Salt Marsh Vegetation Patch Size and Shape Metrics Quantified from Remote Sensing Imagery

    E-Print Network [OSTI]

    Moffett, Kevan B.; Law, Jaslyn; Gorelick, Steven M.; Nur, Nadav; Wood, Julian K.

    2014-01-01

    deviations of M. m. pusil- lula density index in marshes ofmodel suggested that M. m. pusil- lula abundance during theremaining, M. m.  pusil- lula is the most threatened by salt

  19. INFAUNAL ABUNDANCE IN RESTORED AND REFERENCE MARSHES OF THE NORTHWESTERN GULF OF MEXICO: THE IMPACT OF HABITAT TYPE AND DROUGHT 

    E-Print Network [OSTI]

    Driscoll, Theodore

    2012-05-04

    , Seneca ED, Wentworth TR (1994) Infaunal community development of artificially established salt marshes in North Carolina. Estuaries 17:489. Sandnes J, Forbes T, Hansen R, Rygg B (2000) Bioturbation and irrigation in natural sediments, described...), and add trophic _______________ This thesis follows the style of Marine Ecology Progress Series. 2 support for primary consumers (Whaley and Minello 2002). Studies of infaunal succession in restored salt marshes along the Atlantic coast suggest...

  20. Composition of White Lead and Paints. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1908-01-01

    EXPERIMENT 8TATIONS. BULLETIN NO. 114 NOVEMBER, 1908. Composition of White lead and Paints. G. S. FRAPS, PH. D,, Chemist. POSTOFFICE : COLLEGE STATION, BRAZOS COUNTY, TEXAS. AUSTIY, TEXAS: VON BOECKMANN-JONES COMPANY, PRINTERS TEXAS AGRICULTURAL EXPE...\\gricultural a M'echanicnl College, in Brazos connty. The posfofEw :>rltlrris iq College SCati Texas. Reports and bulletins are sent free upon application to the Director. TABLE OF CONTENTS . Paint Materials...

  1. DUSEL Theory White Paper

    E-Print Network [OSTI]

    S. Raby; T. Walker; K. S. Babu; H. Baer; A. B. Balantekin; V. Barger; Z. Berezhiani; A. de Gouvea; R. Dermisek; A. Dolgov; P. Fileviez Perez; G. Gabadadze; A. Gal; P. Gondolo; W. Haxton; Y. Kamyshkov; B. Kayser; E. Kearns; B. Kopeliovich; K. Lande; D. Marfatia; R. N. Mohapatra; P. Nath; Y. Nomura; K. A. Olive; J. Pati; S. Profumo; R. Shrock; Z. Tavartkiladze; K. Whisnant; L. Wolfenstein

    2008-10-24

    The NSF has chosen the site for the Deep Underground Science and Engineering Laboratory (DUSEL) to be in Lead, South Dakota. In fact, the state of South Dakota has already stepped up to the plate and contributed its own funding for the proposed lab, see http://www.sanfordlaboratoryathomestake.org/index.html. The final decision by NSF for funding the Initial Suite of Experiments for DUSEL will be made early in 2009. At that time the NSF Science Board must make a decision. Of order 200 experimentalists have already expressed an interest in performing experiments at DUSEL. In order to assess the interest of the theoretical community, the Center for Cosmology and Astro-Particle Physics (CCAPP) at The Ohio State University (OSU) organized a 3-day DUSEL Theory Workshop in Columbus, Ohio from April 4 - 6, 2008. The workshop focused on the scientific case for six proposed experiments for DUSEL: long baseline neutrino oscillations, proton decay, dark matter, astrophysical neutrinos, neutrinoless double beta decay and N-Nbar oscillations. The outcome of this workshop is the DUSEL Theory White paper addressing the scientific case at a level which may be useful in the decision making process for policy makers at the NSF and in the U.S. Congress. In order to assess the physics interest in the DUSEL project we have posted the DUSEL Theory White paper on the following CCAPP link http://ccapp.osu.edu/whitepaper.html . Please read the white paper and, if you are interested, use the link to show your support by co-signing the white paper.

  2. White lighting LEDs are fast replacing conventional lighting because not only are they energy efficient light sources but also can be modulated at frequencies up to 20MHz for high-speed wireless communication, especially for indoor applications.

    E-Print Network [OSTI]

    Sekercioglu, Y. Ahmet

    Background White lighting LEDs are fast replacing conventional lighting because not only by using ceiling mounted white lighting LEDs Jiun Bin Choong Supervisor : Prof. Jean Armstrong A B F 1 2 1 are they energy efficient light sources but also can be modulated at frequencies up to 20MHz for high

  3. Long-term variation of fiddler crab populations in North Carolina salt marshes

    SciTech Connect (OSTI)

    Cammen, L.M.; Seneca, E.D.; Stroud, L.M.

    1984-06-01

    As part of the environmental monitoring of possible effects of the Brunswick nuclear power plant fiddle crab populations were sampled in several salt marshes in the lower Cape Fear River estuary, North Carolina for five years. Total biomass of the fiddler crabs Uca Pugnax and U. minax in four Spartina marshes declined by 65 to 70% between the summers of 1974-1975 and 1976-1977 with no significant decrease in population density; there was evidence of a recovery in summer of 1978 to the 1974-1975 levels. The cause of these fluctuations is unknown, but such a degree of variability in intertidal populations emphasizes the need for caution in using one or two-year baseline studies to evalute potential environmental impacts. 1 figure, 2 table.

  4. Factors Affecting Carbohydrate Production and Loss in Salt Marsh Sediments of Galveston Bay 

    E-Print Network [OSTI]

    Wilson, Carolyn E.

    2010-10-12

    and organic matter enrichment. While there has been research focused on changes on benthic microalgal biomass and carbohydrate concentrations, much of this research has focused on salt marshes located in temperate areas (S?ndback & Graneli 1988, Underwood... the sediment. Rationale: Nitrogen is generally the limiting inorganic nutrient in marine systems (Graneli & S?ndback 1985, S?ndback & Graneli 1988, S?ndback & Snoeijs 1991, Pinckney et al. 1995, Underwood et al. 1998, Hillebrand et al. 2000, Thornton et al...

  5. Metapopulation Ecology and Recovery of the Endangered Lower Keys Marsh Rabbit 

    E-Print Network [OSTI]

    Schmidt, Paige McGee

    2011-02-22

    to the Lower Keys, Florida, is threatened with extinction due to extensive coastal development of salt marsh habitats. LKMR recovery is limited by habitat loss and degradation from brush encroachment, predation by free- roaming cats (Felis catus... has been limited by habitat loss and degradation from brush encroachment, predation by free-roaming cats (Felis catus) and raccoons (Procyon lotor), sea-level rise and hurricanes (USFWS 1999, 2007). In my study, I sought to determine local...

  6. Population modeling in conservation planning of the Lower Keys marsh rabbit 

    E-Print Network [OSTI]

    LaFever, David Howard

    2006-10-30

    . Other potential threats to LKMRs include mortality caused by feral cats (Felis catus) and raccoons (Procyon lotor), and roads (Howe, 1988; Forys and Humphrey, 1996; USFWS, 1999). Due to alteration of habitat, salt marshes of the Lower Keys exist... loss and fragmentation caused by development as the primary reasons for the subspecies? decline. Other potential threats to LKMRs include mortality caused by feral cats (Felis catus), and raccoons (Procyon lotor) (Howe, 1988; Forys and Humphrey, 1996...

  7. Evaluating Tidal Marsh Sustainability in the Face of Sea-Level Rise: A Hybrid Modeling Approach Applied to San Francisco Bay

    E-Print Network [OSTI]

    Kelly, Maggi

    2011-01-01

    Jr. , DeLaune RD (1990) Subsidence, accretion, and sea levelaccretion, and subsidence in marshes of Barataria Basin,productivity [7], rates of subsidence or uplift [20],

  8. Avian Communities in Tidal Salt Marshes of San Francisco Bay: A Review of Functional Groups by Foraging Guild and Habitat Association

    E-Print Network [OSTI]

    2011-01-01

    2006). San Francisco Bay song spar- rows are adapted to highswallows (Hirundinidae), savannah spar- rows (Passerculussurvival in tidal-marsh song spar- rows was maximized when

  9. Brendan M. White

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &Bradbury Science Museum - ScienceBrendan M. White About ESnet Our

  10. Sandia Energy - Jonathan White

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULIColinEnergyComputationalJBEI(Jon) Berg HomeWhite

  11. Green Light-Emitting Diode Makes Highly Efficient White Light; The Spectrum of Clean Energy Innovation (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-06-01

    Fact sheet describing NREL's green light emitting diode that can lead to higher efficiency white light used in indoor lighting applications.

  12. Copyright 2010 by the author(s). Published here under license by the Resilience Alliance. Feagin, R. A., M. Luisa Martinez, G. Mendoza-Gonzalez, and R. Costanza. 2010. Salt marsh zonal

    E-Print Network [OSTI]

    Vermont, University of

    , R. A., M. Luisa Martinez, G. Mendoza-Gonzalez, and R. Costanza. 2010. Salt marsh zonal migration and Society 15(4): 14. [online] URL: http://www.ecologyandsociety.org/vol15/iss4/art14/ Research Salt Marsh, using a 6 x 6 km area as an example. Our findings show that salt marshes do not always lose land

  13. Stratigraphy, pollen history and geochronology of tidal marshes in a Gulf of Maine estuarine system: Climatic and relative sea level impacts

    E-Print Network [OSTI]

    New Hampshire, University of

    Stratigraphy, pollen history and geochronology of tidal marshes in a Gulf of Maine estuarine system stratigraphy pollen accretion relative sea level climate effects Sedimentologic and stratigraphic. The results of this study indicate that the sedimentology and stratigraphy of moderate-size tidal marshes

  14. Anonym activities: white-and blackhat applications

    E-Print Network [OSTI]

    Jelasity, Márk

    techniques Tor ­ basic idea of onion routing ­ current status and some problems #12;5 Storm Botnet appeared) #12;16 Tor Can provide anonymity for both clients and servers (the latter using the ".onion" domain) So called "onion" routing Originally funded by US Naval Research Lab ­ To provi

  15. White LED for general illumination applications

    E-Print Network [OSTI]

    Li, Fung Yuen Ken

    2007-01-01

    In the 21st century, mankind faces problem of energy crisis through depletion of fossil fuels as well as global warning through the production of excessive greenhouse gases. Hence, there is an urgent need to look for new ...

  16. Nondestructive Evaluation and Monitoring Projects NASA White...

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

    Nondestructive Evaluation and Monitoring Projects NASA White Sands Test Facility (WSTF) Nondestructive Evaluation and Monitoring Projects NASA White Sands Test Facility (WSTF)...

  17. Dynamic Fluctuations in Ultrasmall Nanocrystals Induce White Light Timothy J. Pennycook,*,,,

    E-Print Network [OSTI]

    Pennycook, Steve

    Information ABSTRACT: Individual ultrasmall CdSe nanocrystals have recently been found to emit white light-tunable optical properties of nanocrystals are of major interest for lighting and solar cell applications ultrasmall.7-12 White light emission from ultrasmall CdSe nanocrystals13-16 is a particularly interesting

  18. Adjusting lidar-derived digital terrain models in coastal marshes based on estimated aboveground biomass density

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

    Medeiros, Stephen; Hagen, Scott; Weishampel, John; Angelo, James

    2015-03-25

    Digital elevation models (DEMs) derived from airborne lidar are traditionally unreliable in coastal salt marshes due to the inability of the laser to penetrate the dense grasses and reach the underlying soil. To that end, we present a novel processing methodology that uses ASTER Band 2 (visible red), an interferometric SAR (IfSAR) digital surface model, and lidar-derived canopy height to classify biomass density using both a three-class scheme (high, medium and low) and a two-class scheme (high and low). Elevation adjustments associated with these classes using both median and quartile approaches were applied to adjust lidar-derived elevation values closer tomore »true bare earth elevation. The performance of the method was tested on 229 elevation points in the lower Apalachicola River Marsh. The two-class quartile-based adjusted DEM produced the best results, reducing the RMS error in elevation from 0.65 m to 0.40 m, a 38% improvement. The raw mean errors for the lidar DEM and the adjusted DEM were 0.61 ± 0.24 m and 0.32 ± 0.24 m, respectively, thereby reducing the high bias by approximately 49%.« less

  19. Monitoring seasonal and annual wetland changes in a freshwater marsh with SPOT HRV data

    SciTech Connect (OSTI)

    Mackey, H.E. Jr.

    1989-12-31

    Eleven dates of SPOT HRV data along with near-concurrent vertical aerial photographic and phenological data for 1987, 1988, and 1989 were evaluated to determine seasonal and annual changes in a 400-hectare, southeastern freshwater marsh. Early April through mid-May was the best time to discriminate among the cypress (Taxodium distichum)/water tupelo (Nyssa acquatica) swamp forest and the non-persistent (Ludwigia spp.) and persistent (Typha spp.) stands in this wetlands. Furthermore, a ten-fold decrease in flow rate from 11 cubic meters per sec (cms) in 1987 to one cms in 1988 was recorded in the marsh followed by a shift to drier wetland communities. The Savannah River Site (SRS), maintained by the US Department of Energy, is a 777 km{sup 2} area located in south central South Carolina. Five tributaries of the Savannah River run southwest through the SRS and into the floodplain swamp of the Savannah River. This paper describes the use of SPOT HRV data to monitor seasonal and annual trends in one of these swamp deltas, Pen Branch Delta, during a three-year period, 1987--1989.

  20. Monitoring seasonal and annual wetland changes in a freshwater marsh with SPOT HRV data

    SciTech Connect (OSTI)

    Mackey, H.E. Jr.

    1989-01-01

    Eleven dates of SPOT HRV data along with near-concurrent vertical aerial photographic and phenological data for 1987, 1988, and 1989 were evaluated to determine seasonal and annual changes in a 400-hectare, southeastern freshwater marsh. Early April through mid-May was the best time to discriminate among the cypress (Taxodium distichum)/water tupelo (Nyssa acquatica) swamp forest and the non-persistent (Ludwigia spp.) and persistent (Typha spp.) stands in this wetlands. Furthermore, a ten-fold decrease in flow rate from 11 cubic meters per sec (cms) in 1987 to one cms in 1988 was recorded in the marsh followed by a shift to drier wetland communities. The Savannah River Site (SRS), maintained by the US Department of Energy, is a 777 km{sup 2} area located in south central South Carolina. Five tributaries of the Savannah River run southwest through the SRS and into the floodplain swamp of the Savannah River. This paper describes the use of SPOT HRV data to monitor seasonal and annual trends in one of these swamp deltas, Pen Branch Delta, during a three-year period, 1987--1989.

  1. Performance and Interoperability in Solar A. Abram White

    E-Print Network [OSTI]

    1 Performance and Interoperability in Solar A. Abram White abewhite@mac.com Senior Honors Thesis with applications that are able to adapt to our dynamics. Solar is a software infrastructure designed to deliver-aware devices envisioned by ubiquitous computing, Solar must exhibit both high performance and the ability

  2. DIVISION S-10--WETLAND SOILS Turnover of Detrital Organic Carbon in a Nutrient-Impacted Everglades Marsh

    E-Print Network [OSTI]

    Florida, University of

    of organic C in plant and soil detrital pools along a P enrichment gradient in an Everglades marsh-30 cmdepth)], potential C mineralization decreased down gradient from the source of nutrient loading to WCA-2 metabolism via denitrification, as well as through NH3 volatilization (Reddy and D'Angelo, 1994). In contrast

  3. T. M. Lenton M. S. Williamson N. R. Edwards R. Marsh A. R. Price A. J. Ridgwell

    E-Print Network [OSTI]

    Williamson, Mark

    T. M. Lenton Æ M. S. Williamson Æ N. R. Edwards R. Marsh Æ A. R. Price Æ A. J. Ridgwell J. G a 3-D frictional geostrophic ocean, phosphate-restoring marine biogeochemistry, dynamic CO2 close to present observations. Six ide- alized total fossil fuel CO2 emissions scenarios are used

  4. The eects of oil spill and clean-up on dominant US Gulf coast marsh macrophytes: a review

    E-Print Network [OSTI]

    Nyman, John

    the use of chemicals such as cleaners or bioremediation, may be necessary to address the problem. Clean. # 2000 Elsevier Science Ltd. All rights reserved. Keywords: Bioremediation; Coastal marshes; Oil clean) to pro- viding ®sh and wildlife habitats, and improving water quality (Mitsch and Gosselink, 1993). Field

  5. INITIAL DEVELOPMENT OF RIPARIAN AND MARSH VEGETATION ON DREDGED-MATERIAL ISLANDS IN THE SACRAMENTO-SAN JOAQUIN

    E-Print Network [OSTI]

    INITIAL DEVELOPMENT OF RIPARIAN AND MARSH VEGETATION ON DREDGED-MATERIAL ISLANDS IN THE SACRAMENTO Planners, Sacramento District, U.S. Army Corps of Engineers, Sacramento, CA. Abstract: Natural vegetation the breached lev- ees at Donlon Island in the Sacramento-San Joaquin River Delta. Vegetation measurements

  6. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    energy sites have lower accumulation rates of both organic and inorganic material,low-energy sites. where ? b is the density of the materialMATERIALS AND METHODS scenarios correspond to marshes that receive high amounts of sediment because of their position in high energy,

  7. Avian Communities in Tidal Salt Marshes of San Francisco Bay: A Review of Functional Groups by Foraging Guild and Habitat Association

    E-Print Network [OSTI]

    2011-01-01

    trophic adaptations of the salt marsh song sparrow MelospizaBasham MP, Mewaldt LR. 1987. Salt water tolerance and thereport on the Cargill Salt Ponds. Senate select committee on

  8. China Camp's race against the tides: Predicting tidal marsh survival through comparison of project sea level rise elevations and sediment accretion rates

    E-Print Network [OSTI]

    Hannah, Whitney; Kuhn, Marlene

    2012-01-01

    average marsh plain sediment accretion at 0.2 inches per2004. Tidal Oscillation of Sediment between a River and a2001. Is There Enough Sediment? Presentation at the State of

  9. Sandia Energy - White House Business Council Roundtable on Water

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

    Protected: White House Business Council Roundtable on Water Home Climate Water Security Protected: White House Business Council Roundtable on Water Previous Next Protected: White...

  10. White Oak Dam stability analysis. Volume I

    SciTech Connect (OSTI)

    Ahmed, S.B.

    1994-01-01

    A parametric study was conducted to evaluate the stability of the White Oak Dam (WOD) embankment and foundation. Slope stability analyses were performed for the upper and lower bound soil properties at three sections of the dam using the PCSTABL4 computer program. Minimum safety factors were calculated for the applicable seismic and static loading conditions. Liquefaction potential of the dam embankment and foundation solid during the seismic event was assessed by using simplified procedures. The WOD is classified as a low hazard facility and the Evaluation Basis Earthquake (EBE) is defined as an earthquake with a magnitude of m{sub b} = 5.6 and a Peak Ground Accelerator (PGA) of 0.13 g. This event is approximately equivalent to a Modified Mercalli Intensity of VI-VIII. The EBE is used to perform the seismic evaluation for slope stability and liquefaction potential. Results of the stability analyses and the liquefaction assessment lead to the conclusion that the White Oak Dam is safe and stable for the static and the seismic events defined in this study. Ogden Environmental, at the request of MMES, has checked and verified the calculations for the critical loading conditions and performed a peer review of this report. Ogden has determined that the WOD is stable under the defined static and seismic loading conditions and the embankment materials are in general not susceptible to liquefaction.

  11. Amplification induced by white noise

    E-Print Network [OSTI]

    Masamichi Ishihara

    2006-03-01

    We investigate the amplification of the field induced by white noise. In the present study, we study a stochastic equation which has two parameters, the energy $\\omega(\\vec{k})$ of a free particle and the coupling strength $D$ between the field and white noise, where the quantity $\\vec{k}$ represents the momentum of a free particle. This equation is reduced to the equation with one parameter $\\alpha(\\vec{k})$ which is defined as $\\alpha(\\vec{k}) = D (\\omega(\\vec{k}))^{-3/2}$. We obtain the expression of the exponent statistically averaged over the unit time and derive an approximate expression of it. In addition, the exponent is obtained numerically by solving the stochastic equation. We find that the amplification increases with $\\alpha(\\vec{k})$. This indicates that white noise can amplify the fields for soft modes if the mass $m$ of the field is sufficiently light and if the strength of the coupling between the field and white noise is sufficiently strong, when the energy $\\omega(\\vec{k})$ is equal to $\\sqrt{m^{2} + \\vec{k}^{2}}$. We show that the $\\alpha(\\vec{k})$ dependence of the exponent statistically averaged is qualitatively similar to that of the exponent obtained by solving the stochastic equation numerically, and that these two exponents for the small value of $\\alpha(\\vec{k})$ are quantitatively similar.

  12. Service management solutions White paper

    E-Print Network [OSTI]

    an end-to-end service perspective. · Service management platform is built on IBM Tivoli Change to help align operations with business context and enable customers to manage change. Tivoli CCMDBService management solutions White paper Netcool + Tivoli: delivering service management innovation

  13. Hyperscale Cloud Technical White Paper

    E-Print Network [OSTI]

    Chaudhuri, Surajit

    Hyperscale Cloud Technical White Paper Published: May 2015 Applies to: SQL Server 2016 CTP2, SQL in the cloud with greater scale and flexibility. Microsoft SQL Server is built for cloud integration--your organization can easily deploy SQL Server in a private cloud, hybrid cloud, or public cloud, and can use

  14. Inside the White House: Solar Panels

    Broader source: Energy.gov [DOE]

    Go inside the White House and learn about the installation of solar panels on the roof of the residence.

  15. Antonia White: no role for women writers 

    E-Print Network [OSTI]

    Witt, Amanda Beth

    1992-01-01

    face in coming to write, as revealed through White's autobiographical novels Frost in Nay (1933) and The lost Traveller (1950). First, I explain White's opinion that no role exists in which women can write without penalty; White believes... for their ambition. Next, I examine the roles White sets forth as open to women; none of these roles allows women to retain both intelligent expression and typical femininity' The main character, called Nanda in Frost in May and Clara in The l, ost Traveller...

  16. Let's makeleaf people! White Ash tree

    E-Print Network [OSTI]

    Ashline, George

    Let's makeleaf people! White Ash tree Seedling Activity Tree location Let's start by exploring the leaf of the White Ash tree! Can you describe the leaf? Does it have smooth-edges or rough-edges? What of anything? Try this... Let's create leaf people from the shape of the White Ash leaves. The shape

  17. Table of Contents White Coat 1

    E-Print Network [OSTI]

    Chapman, Michael S.

    Table of Contents White Coat 1 Staff Profiles 2/3/4 Recent Photos 5 New SOD'ers 6 State of School 7 on page six) Dental Bites October 2014 Class of 2017 Receives White Coats The Class of 2017 was recognized of patients. Seventy-five second-year dental students received their personalized white lab coats in a formal

  18. Using multispectral videography to distinguish the pattern of zonation and plant species composition in brackish water marshes of the Rio Grande Delta

    SciTech Connect (OSTI)

    Judd, F.W.; Lonard, R.I.; Everitt, J.H. [Univ. of Texas-Pan American, Edinburg, TX (United States)] [and others

    1997-08-01

    Cyclical flooding of the Rio Grande and movement of floodwater into distributary channels formerly constituted significant freshwater input into the marshes of the Rio Grande Delta, but dams and flood control projects have eliminated this source of freshwater. The marshes are now dependent on rainfall alone for freshwater input and may be experiencing significant change in species of vegetation, abundance and patterns of distribution. Unfortunately, little is known of the ecology of these marshes. As a first step in providing needed information, multispectral videography was used to distinguish species composition and patterns of zonation in a brackish water marsh at Laguna Atascosa National Wildlife Refuge, Cameron County, Texas. The line intercept method of vegetation analysis provided ground truth and quantified species distribution and abundance. The vegetation of a typical brackish water marsh is organized into three zones along an elevation gradient. At the lowest elevations there is a distinct zone dominated by maritime saltwort, Batis maritime. At the lowest elevations in this zone where rainwater remains the longest, stands of California bulrush, Scirpus californicus, occur. An intermediate zone supports shoregrass, Monanthochloe littoralis, as the dominant species. A third (highest) zone is dominated by Gulf cordgrass, Spartina spartinae. The upper margin of this zone grades gradually into a shrub-grassland community that occurs on lomas (clay dunes). Each of the zones is distinguished by a distinctive signature in the multispectral videography. The Batis maritime community has a bright pink to red image response. Monanthochloe littoralis has a dark brown color and Spartina spartinae has a light gray to pinkish-tan color. Brackish water marshes may be distinguished from saltwater marshes by the relative positions of the Monanthochloe littoralis and Spartina spartinae communities, but additional data are needed before this possibility is confirmed.

  19. White Grubs in Texas Turfgrass 

    E-Print Network [OSTI]

    Merchant, Michael E.; Biles, Stephen; Mott, Dale

    2004-06-24

    . Use of mulching mowers to recycle grass clippings should not cause thatch buildup in regularly mowed lawns. Environmental Considerations. Unnecessary insecticide applica- tions sometimes create more prob- lems than they solve. Pesticides can have... and other culti- vated plants. White grubs, sometimes referred to as grubworms, injure turf by feed- ing on roots and other under- ground plant parts. Damaged areas within lawns lose vigor and turn brown (Figure 1). Severely dam- aged turf can be lifted...

  20. White House honors Los Alamos

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubicthe FOIA? The FOIA,Department of EnergyWhite

  1. Gaia - A White Dwarf Discovery Machine

    E-Print Network [OSTI]

    Stefan Jordan

    2006-10-30

    The Gaia data will help to improve the construction of a luminosity function for the disk and the halo and will provide a more accurate determination of the age of our solar neighborhood. Moreover, reliable stellar dynamical investigations of the disk and halo components will be possible. For the first time it will be possible to test the mass-radius relation of white dwarfs in great detail. Moreover, more accurate masses of magnetic and cool white dwarfs can be expected. Gaia is also expected to discover many new pulsating white dwarfs. The Gaia measurements can also complement the measurements of gravitational waves from close white dwarf binaries with Lisa.

  2. Wind Turbine Acoustic Noise A white paper

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Wind Turbine Acoustic Noise A white paper Prepared by the Renewable Energy Research Laboratory...................................................................... 8 Sound from Wind Turbines .............................................................................................. 10 Sources of Wind Turbine Sound

  3. The White House's Week of Making

    Broader source: Energy.gov [DOE]

    The White House's Week of Making from June 12-18 will coincide with a National Maker Faire event in Washington, D.C.

  4. White dwarf mergers,White dwarf mergers, thermonuclear supernovae,thermonuclear supernovae,

    E-Print Network [OSTI]

    Hinton, Jim

    White dwarf mergers,White dwarf mergers, thermonuclear supernovae,thermonuclear supernovae fusion is ignited. Degenerate, hence runaway. #12;CO white dwarf accretes, either from companion, or from disk after merger. As it approaches maximum mass, C fusion is ignited. Degenerate, hence runaway. SN Ia

  5. ENERGY WHITE PAPER Our energy future -

    E-Print Network [OSTI]

    ENERGY WHITE PAPER Our energy future - creating a low carbon economy and consumers. And we stand up for fair and open markets in the UK, Europe and the world. #12;Our energy future ENERGY WHITE PAPER Our energy future - creating a low carbon economy 1 Foreword

  6. Barriers to CHP with Renewable Portfolio Standards, Draft White...

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

    Barriers to CHP with Renewable Portfolio Standards, Draft White Paper, September 2007 Barriers to CHP with Renewable Portfolio Standards, Draft White Paper, September 2007 The...

  7. White House Announces New Executive Order To Reduce Greenhouse...

    Energy Savers [EERE]

    White House Announces New Executive Order To Reduce Greenhouse Gas Emissions in the Federal Government White House Announces New Executive Order To Reduce Greenhouse Gas Emissions...

  8. White House Highlights New DOE Measures to Advance Renewable...

    Energy Savers [EERE]

    White House Highlights New DOE Measures to Advance Renewable Energy Deployment and Increase Energy Efficiency White House Highlights New DOE Measures to Advance Renewable Energy...

  9. Sandia Energy - Four-color laser white illuminant demonstrating...

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

    laser white illuminant demonstrating high color-rendering quality Home Solid-State Lighting News Four-color laser white illuminant demonstrating high color-rendering quality...

  10. Rocky Mountain White Tilapia Aquaculture Low Temperature Geothermal...

    Open Energy Info (EERE)

    Rocky Mountain White Tilapia Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Rocky Mountain White Tilapia Aquaculture Low Temperature Geothermal...

  11. White House Spotlights Solar Innovation as Summit Registration...

    Energy Savers [EERE]

    White House Spotlights Solar Innovation as Summit Registration Continues White House Spotlights Solar Innovation as Summit Registration Continues April 23, 2014 - 10:38am Addthis...

  12. Tribal Leaders Provide White House with Input on Bolstering Climate...

    Energy Savers [EERE]

    Tribal Leaders Provide White House with Input on Bolstering Climate Resilience Tribal Leaders Provide White House with Input on Bolstering Climate Resilience January 7, 2015 -...

  13. Application

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic Spins Do The TwistContract2Application

  14. Applications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic Spins Do TheApplication Portingboat ride on

  15. 36 selected citations from Petroleum: An Annotated Bibliography on Petroleum Pollution Chabreck, R. H. 1973. Bird usage of marsh ponds subjected to oil spills. Proceedings of the

    E-Print Network [OSTI]

    . H. 1973. Bird usage of marsh ponds subjected to oil spills. Proceedings of the Louisiana Academy of Sciences 26:101-110. Effects of a crude oil spill in three freshwater ponds in Louisiana over a 2-year period. Data on bird usage, plants, invertebrates, fish, and oil in sediments and water. The petroleum

  16. Re: Report has been approved: Effects of Building a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on Louisiana Marshes

    E-Print Network [OSTI]

    a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on Louisiana Marshes of Building a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on LouisianaRe: Report has been approved: Effects of Building a Sand Barrier Berm to Mitigate the Effects

  17. Point No Point Marsh Restoration and Flood Risk Mitigation Feasibility Project 1. Provide the name of all non-Federal interests planning to act as the sponsor,

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Point No Point Marsh Restoration and Flood Risk Mitigation Feasibility Project 1. Provide the name. This proposal is for a feasibility study for environmental restoration and flood risk mitigation. 3. State Restoration and Flood Risk Mitigation Feasibility Project are: Determine alternative approaches

  18. NEXT GENERATION NUCLEAR PLANT LICENSING BASIS EVENT SELECTION WHITE PAPER

    SciTech Connect (OSTI)

    Mark Holbrook

    2010-09-01

    The Next Generation Nuclear Plant (NGNP) will be a licensed commercial high temperature gas-cooled reactor (HTGR) plant capable of producing the electricity and high temperature process heat for industrial markets supporting a range of end-user applications. The NGNP Project has adopted the 10 CFR 52 Combined License (COL) application process, as recommended in the Report to Congress, dated August 2008, as the foundation for the NGNP licensing strategy. NRC licensing of the NGNP plant utilizing this process will demonstrate the efficacy of licensing future HTGRs for commercial industrial applications. This white paper is one in a series of submittals that will address key generic issues of the COL priority licensing topics as part of the process for establishing HTGR regulatory requirements.

  19. Is the Universe a White-Hole?

    E-Print Network [OSTI]

    Marcelo Samuel Berman

    2008-08-06

    Pathria(1972) has shown, for a pressureless closed Universe, that it is inside a black (or white) hole. We show now, that the Universe with a cosmic pressure obeying Einstein's field equations, can be inside a white-hole. In the closed case, a positive cosmological constant does the job; for the flat and open cases, the condition we find is not verified for the very early Universe, but with the growth of the scale-factor, the condition will be certainly fulfilled for a positive cosmological constant, after some time. We associate the absolute temperature of the Universe, with the temperature of the corresponding white-hole.

  20. Synthesis and luminescence properties of rare earth activated phosphors for near UV-emitting LEDs for efficacious generation of white light

    E-Print Network [OSTI]

    Han, Jinkyu

    2013-01-01

    Luo, S. Lu. ?White light emitting diode by using a-Ca 2 P 2silicates for near-UV light emitting diode applications,? J.S.Y. Choi. ?White light-emitting diodes of GaN-based Sr 2

  1. History of Electricity at the White House

    Broader source: Energy.gov [DOE]

    The White House has only been electrified for a little over a century. Check out our timeline to read more about what it takes to power 1600 Pennsylvania Avenue.

  2. Low Luminosity Companions to White Dwarfs

    E-Print Network [OSTI]

    J. Farihi; E. E. Becklin; B. Zuckerman

    2005-11-16

    This paper presents results of a near-infrared imaging survey for low mass stellar and substellar companions to white dwarfs. A wide field proper motion survey of 261 white dwarfs was capable of directly detecting companions at orbital separations between $\\sim100$ and 5000 AU with masses as low as 0.05 $M_{\\odot}$, while a deep near field search of 86 white dwarfs was capable of directly detecting companions at separations between $\\sim50$ and 1100 AU with masses as low as 0.02 $M_{\\odot}$. Additionally, all white dwarf targets were examined for near-infrared excess emission, a technique capable of detecting companions at arbitrarily close separations down to masses of 0.05 $M_{\\odot}$. No brown dwarf candidates were detected, which implies a brown dwarf companion fraction of $main sequence binary interactions.

  3. BPA research aids Columbia River white sturgeon

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

    research aids Columbia River white sturgeon 8142015 12:00 AM Tweet Page Content BPA fish biologist Scott Bettin (left) and Brad Cady of the Washington Dept. of Fish and...

  4. Strategic Facility Management: A White Paper

    Broader source: Energy.gov [DOE]

    This white paper provides information on the SFP process, its requirements and benefits, and gives a facility manager the basic tools to launch and successfully complete a SFP for the supported organization.

  5. Lighting Choices - White Background | Department of Energy

    Energy Savers [EERE]

    Choices - White Background Image icon All of these lightbulbs-CFLs, LEDs, and energy-saving incandescents-meet the new energy standards that take effect from 2012-2014. More...

  6. 2014 White House Tribal Nations Conference

    Office of Energy Efficiency and Renewable Energy (EERE)

    On Wednesday, December 3, President Obama will host the 2014 White House Tribal Nations Conference at the Capital Hilton in Washington, DC. The conference will provide leaders from the 566...

  7. CELLULAR TELEPHONE FACILITIES A White Paper

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    1 CELLULAR TELEPHONE FACILITIES ON CAMPUS A White Paper May 1, 2003 #12;2 TABLE OF CONTENTS Background on Cellular Telephones.......................................................... 5 History of Cellular Telephone Sites on Campus.............................................. 7 Current Terms

  8. Merging White Dwarfs and Thermonuclear Supernovae

    E-Print Network [OSTI]

    van Kerkwijk, Marten H

    2012-01-01

    Thermonuclear supernovae result when interaction with a companion reignites nuclear fusion in a carbon-oxygen white dwarf, causing a thermonuclear runaway, a catastrophic gain in pressure, and the disintegration of the whole white dwarf. It is usually thought that fusion is reignited in near-pycnonuclear conditions when the white dwarf approaches the Chandrasekhar mass. I briefly describe two long-standing problems faced by this scenario, and our suggestion that these supernovae instead result from mergers of carbon-oxygen white dwarfs, including those that produce sub-Chandrasekhar mass remnants. I then turn to possible observational tests, in particular those that test the absence or presence of electron captures during the burning.

  9. Next Generation Nuclear Plant Structures, Systems, and Components Safety Classification White Paper

    SciTech Connect (OSTI)

    Pete Jordan

    2010-09-01

    This white paper outlines the relevant regulatory policy and guidance for a risk-informed approach for establishing the safety classification of Structures, Systems, and Components (SSCs) for the Next Generation Nuclear Plant and sets forth certain facts for review and discussion in order facilitate an effective submittal leading to an NGNP Combined Operating License application under 10 CFR 52.

  10. NASA LAW 2006 LABORATORY ASTROPHYSICS WHITE PAPER 1 LABORATORY ASTROPHYSICS WHITE PAPER

    E-Print Network [OSTI]

    Savin, Daniel Wolf

    NASA LAW 2006 LABORATORY ASTROPHYSICS WHITE PAPER 1 LABORATORY ASTROPHYSICS WHITE PAPER (BASED ON THE 2006 NASA LABORATORY ASTROPHYSICS WORKSHOP AT THE UNIVERSITY OF NEVADA, LAS VEGAS, 14-16 FEBRUARY, 2006 Chutjian (Jet Propulsion Laboratory), Gary Ferland (University of Ken- tucky), Steve Manson (Georgia State

  11. Phase transformations of nano-sized cubic boron nitride to white graphene and white graphite

    SciTech Connect (OSTI)

    Dang, Hongli; Liu, Yingdi; Xue, Wenhua; Anderson, Ryan S.; Sewell, Cody R. [Department of Physics and Engineering Physics, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Xue, Sha; Crunkleton, Daniel W. [Department of Chemical Engineering, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Institute of Alternate Energy, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Shen, Yaogen [Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon (Hong Kong); Wang, Sanwu, E-mail: sanwu-wang@utulsa.edu [Department of Physics and Engineering Physics, The University of Tulsa, Tulsa, Oklahoma 74104 (United States); Institute of Alternate Energy, The University of Tulsa, Tulsa, Oklahoma 74104 (United States)

    2014-03-03

    We report quantum-mechanical investigations that predict the formation of white graphene and nano-sized white graphite from the first-order phase transformations of nano-sized boron nitride thin-films. The phase transformations from the nano-sized diamond-like structure, when the thickness d?>?1.4?nm, to the energetically more stable nano-sized white graphite involve low activation energies of less than 1.0?eV. On the other hand, the diamond-like structure transforms spontaneously to white graphite when d???1.4?nm. In particular, the two-dimensional structure with single-layer boron nitride, the so-called white graphene, could be formed as a result of such transformation.

  12. Efficient White SSL Component for General Illumination

    SciTech Connect (OSTI)

    Sean Evans

    2011-01-31

    Cree has developed a new, high-efficiency, low-cost, light emitting diode (LED) module that should be capable of replacing standard, halogen, fluorescent and metal halide lamps based on the total cost of ownership. White LEDs are produced by combining one or more saturated color LEDs with a phosphor or other light down-converting media to achieve white broad-band illumination. This two year project addressed LED chip, package and phosphor efficiency improvements to establish a technology platform suitable for low-cost, high-efficiency commercial luminaires. New phosphor materials with improved quantum efficiency at 'real-life' operating conditions were developed along with new package technology to improve the efficiency of warm white LED modules compared to the baseline technology. Specifically, Cree has successfully demonstrated warm white LED modules providing 540 lumens at a correlated color temperature (CCT) of 3000 K. The LED module had an efficacy of 102.8 lumens per watt (LPW) using 1 mm2 chips biased at 350 mA - a 27% improvement over the technology at project start (81 LPW at 3000K). The white modules also delivered an efficacy of 88 LPW at elevated junction temperatures of 125 C. In addition, a proof-of-concept 4-inch downlight luminaire produced a flux of 1183 lumens at a CCT of 2827 K and a color rendering index (CRI) of 80 using this project's phosphor developments.

  13. CONTENT ANR @ MSU AgBioResearch 1999 White Mold Ratings in Huron County, Tom Haag Farm

    E-Print Network [OSTI]

    Videos Links 1999 White Mold Ratings in Huron County, Tom Haag Farm NAVY White Mold Rating BLACK White Mold

  14. Recombination energy in double white dwarf formation

    E-Print Network [OSTI]

    Nandez, Jose L A; Lombardi, James C

    2015-01-01

    In this Letter we investigate the role of recombination energy during a common envelope event. We confirm that taking this energy into account helps to avoid the formation of the circumbinary envelope commonly found in previous studies. For the first time, we can model a complete common envelope event, with a clean compact double white dwarf binary system formed at the end. The resulting binary orbit is almost perfectly circular. In addition to considering recombination energy, we also show that between 1/4 and 1/2 of the released orbital energy is taken away by the ejected material. We apply this new method to the case of the double-white dwarf system WD 1101+364, and we find that the progenitor system at the start of the common envelope event consisted of a $\\sim1.5M_\\odot$ red giant star in a $\\sim 30$ day orbit with a white dwarf companion.

  15. White Wind Farms Strategic Communications Campaign

    E-Print Network [OSTI]

    Ford, Gina; Noulles, Mary; James, Jessica

    2014-09-03

    66053 Nearby Wine Retailers 11 Finances, Operations and Overhead In 2012, White Wind Farms generated $555,000 in annual revenue. The revenue is itemized as follows: $500,000 in nursery sales, $30,000 in wine sales and $25,000 in revenue from... Village, Kan., were the only three retail outlets where respondents purchased wine. 23 Social Eight respondents follow White Wind Farms on Facebook, 27 do not and the remaining 12 respondents do not utilize Facebook. When asked what types of occasions...

  16. NGNP Fuel Qualification White Paper

    SciTech Connect (OSTI)

    David A. Petti

    2010-07-01

    The Japanese high temperature gas reactor program is centered on the High Temperature Engineering Test Reactor (HTTR), which has a thermal power of 30 MW and 950°C maximum coolant outlet temperature. The HTTR achieved criticality in November 1998 and has undergone a series of rise-to-power tests [Fujikawa 2004]. In December 2001, an outlet temperature of 850°C was achieved and in April 2004 a temperature of 950°C was achieved. As of July 2004, the reactor had operated for 224 effective full power days (EFPD). The planned core life cycle is 660 EFPD [Verfondern 2000]. It is planned to couple a high temperature process heat application to the HTTR through its intermediate heat exchanger in the future.

  17. TECHNOLOGY READINESS LEVELS A White Paper

    E-Print Network [OSTI]

    Rhoads, James

    028 TECHNOLOGY READINESS LEVELS A White Paper April 6, 1995 John C. Mankins Advanced Concepts Office Office of Space Access and Technology NASA Introduction Technology Readiness Levels (TRLs) are a systematic metric/measurement system that supports assessments of the maturity of a particular technology

  18. Waste and Climate Change ISWA WHITE PAPER

    E-Print Network [OSTI]

    Columbia University

    ISWA Commitments 6 Introduction 7 Technologies 8 Material recovery 14 Organic recovery 16 Energy 38 2 List of Contents #12;The climate change phenomenon, its causes and consequences, is now to present the Waste & Climate ISWA White Paper, setting forth the technologies and mechanisms which can

  19. White Paper on Magnetic Fusion Program Strategies

    E-Print Network [OSTI]

    is uncertain. There are predictions of future energy shortages and of severe environmental impacts from present our vision for the future of fusion energy research. In this white paper, following a summary Institute of Technology Michael J. Saltmarsh Director, Fusion Energy Division Oak Ridge National Laboratory

  20. Differential white cell count by centrifugal microfluidics.

    SciTech Connect (OSTI)

    Sommer, Gregory Jon; Tentori, Augusto M.; Schaff, Ulrich Y.

    2010-07-01

    We present a method for counting white blood cells that is uniquely compatible with centrifugation based microfluidics. Blood is deposited on top of one or more layers of density media within a microfluidic disk. Spinning the disk causes the cell populations within whole blood to settle through the media, reaching an equilibrium based on the density of each cell type. Separation and fluorescence measurement of cell types stained with a DNA dye is demonstrated using this technique. The integrated signal from bands of fluorescent microspheres is shown to be proportional to their initial concentration in suspension. Among the current generation of medical diagnostics are devices based on the principle of centrifuging a CD sized disk functionalized with microfluidics. These portable 'lab on a disk' devices are capable of conducting multiple assays directly from a blood sample, embodied by platforms developed by Gyros, Samsung, and Abaxis. [1,2] However, no centrifugal platform to date includes a differential white blood cell count, which is an important metric complimentary to diagnostic assays. Measuring the differential white blood cell count (the relative fraction of granulocytes, lymphocytes, and monocytes) is a standard medical diagnostic technique useful for identifying sepsis, leukemia, AIDS, radiation exposure, and a host of other conditions that affect the immune system. Several methods exist for measuring the relative white blood cell count including flow cytometry, electrical impedance, and visual identification from a stained drop of blood under a microscope. However, none of these methods is easily incorporated into a centrifugal microfluidic diagnostic platform.

  1. GREEN IT STRATEGY WHITE PAPER BIG DATA.

    E-Print Network [OSTI]

    Chou, James

    GREEN IT STRATEGY WHITE PAPER BIG DATA. BIG ENERGY. #12;GREEN:ons in MassachuseUs. In one day, Odyssey's cloud compu:ng power can process the same amount of 250 more kilowaUs annually. HARVARD'S GREEN IT COMMITMENT Achieve University

  2. Red Giant Red Giant White Giant

    E-Print Network [OSTI]

    Bechtold, Jill

    's enormous weight crushes the core with so much pressure that fusion is possible. Mass: 4 - 10 SM Star temperatures make the fusion of helium into carbon possible. Mass: 1 - 4 Solar Mass StarPower Points: 7 #12; High mass star that consumes hydrogen rapidly. White giants, such as Deneb in the constellation Cygnus

  3. Statement from the White House Press Secretary on the Ongoing...

    Office of Environmental Management (EM)

    Statement from the White House Press Secretary on the Ongoing U.S. Response to the Earthquakes and Tsunami in Japan Statement from the White House Press Secretary on the Ongoing...

  4. VBH-0068- In the Matter of Ronald D. White

    Broader source: Energy.gov [DOE]

    This Decision involves a complaint filed by Ronald D. White (White or “Complainant”) under the Department of Energy (DOE) Contractor Employee Protection Program, codified at 10 C.F.R. Part 708....

  5. EIS-0376: White Wind Farm Brookings County, South Dakota

    Broader source: Energy.gov [DOE]

    This EIS evaluates the potential environmental impacts of a proposal by Western to interconnect its proposed White Wind Farm Project (Project) to Western’s transmission system at the existing White...

  6. Men in question: rethinking white masculinity after the sixties 

    E-Print Network [OSTI]

    Marsh, Samantha Jane

    2013-02-22

    The social and political movements of the 1960s created a contemporary crisis in white masculinity. The civil rights, women's liberation, and counterculture movements all challenged traditional notions of white masculinity ...

  7. White sponge nevus in a patient with EEC syndrome

    E-Print Network [OSTI]

    Dalben, Gisele Silva; Cursino, Helize A; Barbosa, Bruno A; Costa, Beatriz; Consolaro, Alberto

    2010-01-01

    family members affected by WSN nor by the EEC syndrome. Toand suggested the term “white sponge nevus” (WSN) [ 1 ].The WSN is one among the several white lesions of the oral

  8. MOF Coating a Promising Path to White LEDs

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

    MOF Coating a Promising Path to White LEDs MOF Coating a Promising Path to White LEDs Print Friday, 27 February 2015 17:11 Hu et al. designed a new yellow phosphor with high...

  9. White LED with High Package Extraction Efficiency

    SciTech Connect (OSTI)

    Yi Zheng; Matthew Stough

    2008-09-30

    The goal of this project is to develop a high efficiency phosphor converting (white) Light Emitting Diode (pcLED) 1-Watt package through an increase in package extraction efficiency. A transparent/translucent monolithic phosphor is proposed to replace the powdered phosphor to reduce the scattering caused by phosphor particles. Additionally, a multi-layer thin film selectively reflecting filter is proposed between blue LED die and phosphor layer to recover inward yellow emission. At the end of the project we expect to recycle approximately 50% of the unrecovered backward light in current package construction, and develop a pcLED device with 80 lm/W{sub e} using our technology improvements and commercially available chip/package source. The success of the project will benefit luminous efficacy of white LEDs by increasing package extraction efficiency. In most phosphor-converting white LEDs, the white color is obtained by combining a blue LED die (or chip) with a powdered phosphor layer. The phosphor partially absorbs the blue light from the LED die and converts it into a broad green-yellow emission. The mixture of the transmitted blue light and green-yellow light emerging gives white light. There are two major drawbacks for current pcLEDs in terms of package extraction efficiency. The first is light scattering caused by phosphor particles. When the blue photons from the chip strike the phosphor particles, some blue light will be scattered by phosphor particles. Converted yellow emission photons are also scattered. A portion of scattered light is in the backward direction toward the die. The amount of this backward light varies and depends in part on the particle size of phosphors. The other drawback is that yellow emission from phosphor powders is isotropic. Although some backward light can be recovered by the reflector in current LED packages, there is still a portion of backward light that will be absorbed inside the package and further converted to heat. Heat generated in the package may cause a deterioration of encapsulant materials, affecting the performance of both the LED die and phosphor, leading to a decrease in the luminous efficacy over lifetime. Recent studies from research groups at Rensselaer Polytechnic Institute found that, under the condition to obtain a white light, about 40% of the light is transmitted outward of the phosphor layer and 60% of the light is reflected inward.1,2 It is claimed that using scattered photon extraction (SPE) technique, luminous efficacy is increased by 60%. In this project, a transparent/translucent monolithic phosphor was used to replace the powdered phosphor layer. In the normal pcLED package, the powdered phosphor is mixed with silicone either to be deposited on the top of LED die forming a chip level conversion (CLC) white LED or to be casted in the package forming a volume conversion white LED. In the monolithic phosphors there are no phosphor powder/silicone interfaces so it can reduce the light scattering caused by phosphor particles. Additionally, a multi-layer thin film selectively reflecting filter is inserted in the white LED package between the blue LED die and phosphor layer. It will selectively transmit the blue light from the LED die and reflect the phosphor's yellow inward emission outward. The two technologies try to recover backward light to the outward direction in the pcLED package thereby improving the package extraction efficiency.

  10. Multidimensional Computational Fluid Dynamics Modeling of the Dispersion of White Oak Creek Contaminants in the Clinch River

    SciTech Connect (OSTI)

    Platfoot, J.H.; Wendel, M.W.; Williams, P.T.

    1996-10-01

    This report describes the simulation of the dispersion and dilution of dissolved or finely suspended contaminants entering the Clinch river from White Oak Creek. The work is accomplished through the application of a commercial computational fluid dynamics (CFD) solver. This study assumes that contaminants originating in the White Oak Creed watershed, which drains Oak Ridge National Laboratory, will eventually reach the mouth of White Oak Creek and be discharged into the clinch River. The numerical model was developed to support the analysis of the off-site consequences of releases from the ORNL liquid low-level waste system. The system contains storage tanks and transfer lines in Bethel Valley and Melton Valley. Under certain failure modes, liquid low-level waste could be released to White Oak Creek or Melton Branch to White Oak Creek and eventually be discharged to the Clinch River. Since the Clinch River has unrestricted access by the public and water usage from the Clinch River is not controlled by the Department of Energy, such a liquid low-level waste spill would create the possibility of public exposure to the contaminant. This study is limited to the dispersion of the contaminants downstream of the confluence of White Oak Creek.

  11. The hydraulic jump as a white hole

    E-Print Network [OSTI]

    G. E. Volovik

    2005-10-21

    In the geometry of the circular hydraulic jump, the velocity of the liquid in the interior region exceeds the speed of capillary-gravity waves (ripplons), whose spectrum is `relativistic' in the shallow water limit. The velocity flow is radial and outward, and thus the relativistic ripplons cannot propagating into the interior region. In terms of the effective 2+1 dimensional Painleve-Gullstrand metric appropriate for the propagating ripplons, the interior region imitates the white hole. The hydraulic jump represents the physical singularity at the white-hole horizon. The instability of the vacuum in the ergoregion inside the circular hydraulic jump and its observation in recent experiments on superfluid 4He by E. Rolley, C. Guthmann, M.S. Pettersen and C. Chevallier in physics/0508200 are discussed.

  12. The hydraulic jump as a white whole

    E-Print Network [OSTI]

    Volovik, G E

    2005-01-01

    In the geometry of the circular hydraulic jump, the velocity of the liquid in the interior region exceeds the speed of capillary-gravity waves (ripplons), whose spectrum is `relativistic' in the shallow water limit. The velocity flow is radial and outward, and thus the relativistic ripplons cannot propagating into the interior region. In terms of the effective 2+1 dimensional Painleve-Gullstrand metric appropriate for the propagating ripplons, the interior region imitates the `white-hole'. The hydraulic jump represents the physical singularity at the white-hole horizon. The instability of the vacuum in the ergoregion inside the circular hydraulic jump and its observation in recent experiments on superfluid 4He by E. Rolley, C. Guthmann, M.S. Pettersen and C. Chevallier in physics/0508200 are discussed.

  13. Collapse models with non-white noises

    E-Print Network [OSTI]

    Stephen L. Adler; Angelo Bassi

    2008-02-01

    We set up a general formalism for models of spontaneous wave function collapse with dynamics represented by a stochastic differential equation driven by general Gaussian noises, not necessarily white in time. In particular, we show that the non-Schrodinger terms of the equation induce the collapse of the wave function to one of the common eigenstates of the collapsing operators, and that the collapse occurs with the correct quantum probabilities. We also develop a perturbation expansion of the solution of the equation with respect to the parameter which sets the strength of the collapse process; such an approximation allows one to compute the leading order terms for the deviations of the predictions of collapse models with respect to those of standard quantum mechanics. This analysis shows that to leading order, the ``imaginary'' noise trick can be used for non-white Gaussian noise.

  14. Whites Renewable Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia: EnergyMaryland:Meadow Lake, New Jersey:Whitefish,Whitehouse,Whites

  15. HTGR Mechanistic Source Terms White Paper

    SciTech Connect (OSTI)

    Wayne Moe

    2010-07-01

    The primary purposes of this white paper are: (1) to describe the proposed approach for developing event specific mechanistic source terms for HTGR design and licensing, (2) to describe the technology development programs required to validate the design methods used to predict these mechanistic source terms and (3) to obtain agreement from the NRC that, subject to appropriate validation through the technology development program, the approach for developing event specific mechanistic source terms is acceptable

  16. Low Voltage White Phosphorescent OLED Achievements

    Broader source: Energy.gov [DOE]

    Universal Display Corporation (UDC) and its research partners at Princeton University and the University of Southern California have succeeded in developing a white phosphorescent OLED (PHOLED™) that achieved a record efficiency of 20 lumens per watt. This achievement is the result of the team's collaborative efforts to increase the efficiency of PHOLED lighting by focusing on two critical factors: lowering the drive voltages and increasing the amount of light extracted.

  17. White Earth Biomass/Biogas Feasibility Study

    SciTech Connect (OSTI)

    Triplett, Michael

    2015-03-12

    The White Earth Nation examined the feasibility of cost savings and fossil energy reduction through the installation of biogas/biomass boiler at the tribal casino. The study rejected biogas options due to availability and site constraints, but found a favorable environment for technical and financial feasibility of installing a 5 MMBtu hot water boiler system to offset 60-70 percent of current fuel oil and propane usage.

  18. Polymer OLED White Light Development Program

    SciTech Connect (OSTI)

    Homer Antoniadis; Vi-En Choong; Stelios Choulis; Brian Cumpston; Rahul Gupta; Mathew Mathai; Michael Moyer; Franky So

    2005-12-19

    OSRAM Opto Semiconductors (OSRAM) successfully completed development, fabrication and characterization of the large area, polymer based white light OLED prototype at their OLED Research and Development (R&D) facility in San Jose, CA. The program, funded by the Department of Energy (DOE), consisted of three key objectives: (1) Develop new polymer materials and device architectures--in order to improve the performance of organic light emitters. (2) Develop processing techniques--in order to demonstrate and enable the manufacturing of large area, white light and color tunable, solid state light sources. (3) Develop new electronics and driving schemes for organic light sources, including color-tunable light sources. The key performance goals are listed. A world record efficiency of 25 lm/W was established for the solution processed white organic device from the significant improvements made during the project. However, the challenges to transfer this technology from an R&D level to a large tile format such as, the robustness of the device and the coating uniformity of large area panels, remain. In this regard, the purity and the blend nature of the materials are two factors that need to be addressed in future work. During the first year, OSRAM's Materials and Device group (M&D) worked closely with the major polymer material suppliers to develop the polymer emissive technology. M&D was successful in demonstrating a 7-8 lm/W white light source which was based on fluorescent materials. However, it became apparent that the major gains in efficiency could only be made if phosphorescent materials were utilized. Thus, in order to improve the performance of the resulting devices, the focus of the project shifted towards development of solution-processable phosphorescent light emitting diodes (PHOLEDs) and device architectures. The result is a higher efficiency than the outlined project milestone.

  19. 130 LPW 1000 Lm Warm White LED for Illumination

    SciTech Connect (OSTI)

    Soer, Wouter

    2012-06-14

    An illumination-grade warm-white LED, having correlated color temperature (CCT) between 2700 and 3500 K and capable of producing 1000 lm output at over 130 lm/W at room temperature, has been developed in this program. The high-power warm-white LED is an ideal source for use in indoor and outdoor lighting applications. Over the two year period, we have made the following accomplishments: • Developed a low-cost high-power white LED package and commercialized a series of products with CCT ranging from 2700 to 5700 K under the product name LUXEON M; • Demonstrated a record efficacy of 124.8 lm/W at a flux of 1023 lm, CCT of 3435 K and color rendering index (CRI) over 80 at room temperature in the productized package; • Demonstrated a record efficacy of 133.1 lm/W at a flux of 1015 lm, CCT of 3475 K and CRI over 80 at room temperature in an R&D package. The new high-power LED package is a die-on-ceramic surface mountable LED package. It has four 2 mm2 InGaN pump dice, flip-chip attached to a ceramic submount in a 2x2 array configuration. The submount design utilizes a design approach that combines a high-thermal- conductivity ceramic core for die attach and a low-cost and low-thermal-conductivity ceramic frame for mechanical support and as optical lens carrier. The LED package has a thermal resistance of less than 1.25 K/W. The white LED fabrication also adopts a new batch level (instead of die-by-die) phosphor deposition process with precision layer thickness and composition control, which provides not only tight color control, but also low cost. The efficacy performance goal was achieved through the progress in following key areas: (1) high-efficiency royal blue pump LED development through active region design and epitaxial growth quality improvement (funded by internal programs); (2) improvement in extraction efficiency from the LED package through improvement of InGaN-die-level and package-level optical extraction efficiency; and (3) improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. The high-power warm-white LED product developed has been proven to have good reliability through extensive reliability tests. The new kilo-lumen package has been commercialized under the product name LUXEON M. As of the end of the program, the LUXEON M product has been released in the following CCT/CRI combinations: 3000K/70, 4000K/70, 5000K/70, 5700K/70, 2700K/80, 3000K/80 and 4000K/80. LM-80 tests for the products with CCTs of 4000 K and higher have reached 8500 hours, and per IESNA TM-21-11 have established an L70 lumen maintenance value of >51,000 hours at A drive current and up to 120 °C board temperature.

  20. Cooling Models for Old White Dwarfs

    E-Print Network [OSTI]

    Brad M. S. Hansen

    1999-03-02

    We present new white dwarf cooling models which incorporate an accurate outer boundary condition based on new opacity and detailed radiative transfer calculations. We find that helium atmosphere dwarfs cool considerably faster than has previously been claimed, while old hydrogen atmosphere dwarfs will deviate significantly from black body appearance. We use our new models to derive age limits for the Galactic disk. We find that the Liebert, Dahn & Monet (1988) luminosity function yields an age of only 6 Gyr if it is complete to stated limits. However, age estimates of individual dwarfs and the luminosity function of Oswalt et al (1995) are both consistent with disk ages as large as \\sim 11 Gyr. We have also used our models to place constraints on white dwarf dark matter in Galactic halos. We find that previous attempts using inadequate cooling models were too severe and that direct detection limits allow a halo that is 11 Gyr old. If the halo is composed solely of helium atmosphere dwarfs, the lower age limit is only 7.5 Gyr. We also demonstrate the importance of studying the cooling sequences of white dwarfs in Globular clusters.

  1. Simulation of the White Dwarf -- White Dwarf galactic background in the LISA data

    E-Print Network [OSTI]

    Jeffrey A. Edlund; Massimo Tinto; Andrzej Królak; Gijs Nelemans

    2005-04-07

    LISA (Laser Interferometer Space Antenna) is a proposed space mission, which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation. In the low-part of its frequency band, the LISA strain sensitivity will be dominated by the incoherent superposition of hundreds of millions of gravitational wave signals radiated by inspiraling white-dwarf binaries present in our own galaxy. In order to estimate the magnitude of the LISA response to this background, we have simulated a synthesized population that recently appeared in the literature. We find the amplitude of the galactic white-dwarf binary background in the LISA data to be modulated in time, reaching a minimum equal to about twice that of the LISA noise for a period of about two months around the time when the Sun-LISA direction is roughly oriented towards the Autumn equinox. Since the galactic white-dwarfs background will be observed by LISA not as a stationary but rather as a cyclostationary random process with a period of one year, we summarize the theory of cyclostationary random processes and present the corresponding generalized spectral method needed to characterize such process. We find that, by measuring the generalized spectral components of the white-dwarf background, LISA will be able to infer properties of the distribution of the white-dwarfs binary systems present in our Galaxy.

  2. The White Dwarf -- White Dwarf galactic background in the LISA data

    E-Print Network [OSTI]

    Jeffrey A. Edlund; Massimo Tinto; Andrzej Krolak; Gijs Nelemans

    2005-04-22

    LISA (Laser Interferometer Space Antenna) is a proposed space mission, which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation. In the low-part of its frequency band, the LISA strain sensitivity will be dominated by the incoherent superposition of hundreds of millions of gravitational wave signals radiated by inspiraling white-dwarf binaries present in our own galaxy. In order to estimate the magnitude of the LISA response to this background, we have simulated a synthesized population that recently appeared in the literature. We find the amplitude of the galactic white-dwarf binary background in the LISA data to be modulated in time, reaching a minimum equal to about twice that of the LISA noise for a period of about two months around the time when the Sun-LISA direction is roughly oriented towards the Autumn equinox. Since the galactic white-dwarfs background will be observed by LISA not as a stationary but rather as a cyclostationary random process with a period of one year, we summarize the theory of cyclostationary random processes, present the corresponding generalized spectral method needed to characterize such process, and make a comparison between our analytic results and those obtained by applying our method to the simulated data. We find that, by measuring the generalized spectral components of the white-dwarf background, LISA will be able to infer properties of the distribution of the white-dwarfs binary systems present in our Galaxy.

  3. White Mountains Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia: EnergyMaryland:Meadow Lake, New Jersey: Energy Resources JumpWhite

  4. Whiting, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia: EnergyMaryland:Meadow Lake, NewWhiteside County,County,Whiting,

  5. Sandia Energy - White Light Creation Architectures

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

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

  6. THE WHITE HOUSE | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternational Affairs, Before theFebruary 1,7/109TESLA TESLA TESLATHE WHITE HOUSE THE

  7. White Mountains Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThinWarsaw,What Is a Small Community WindWhere is DBWindWhite

  8. White Energy Ltd | Open Energy Information

    Open Energy Info (EERE)

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

  9. Women @ Energy: Karen White | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowingFuelWeatherize »Eve Kovacs Women @Jill Deem WomenWhite

  10. New Efficiency Record Achieved for White OLED Device

    Broader source: Energy.gov [DOE]

    Osram Opto-Semiconductors, Inc. has successfully demonstrated a white organic light emitting diode (OLED) with a record efficiency of 25 lumens per watt, the highest known efficiency achieved to date for a polymer-based white OLED. The 25 LPW cool-white-emitting device was produced by applying a standard external inorganic phosphor to Osram's record-breaking blue-emitting phosphorescent polymer device with a peak luminous efficacy of 14 LPW.

  11. 2012 White Book, Pacific Northwest Loads and Resources Study

    SciTech Connect (OSTI)

    2013-06-06

    The White Book is a planning analysis produced by BPA that informs BPA of its load and resource conditions for sales and purchases. The White Book provides a 10-year look at the expected obligations and resources in the Federal system and PNW region. The White Book is used as a planning tool for the Columbia River Treaty (Treaty) studies, as an information tool for customers and regional interests, and as a publication of information utilized by other planning entities for their analyses. The White Book is not used to guide day-to-day operations of the Federal Columbia River Power System (FCRPS) or determine BPA revenues or rates.

  12. 21st Century Truck Partnership - Roadmap and Technical White...

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

    21st Century Truck Partnership - Roadmap and Technical White Papers Appendix of Supporting Information - 21CTP-0003, December 2006 21st Century Truck Partnership - Roadmap and...

  13. NREL: Technology Transfer - NREL to Play Pivotal Role in White...

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

    White House Initiative to Bolster America's Manufacturing Future A photo of a large scale wind turbine with foothills in the background. Experts at the National Wind Technology...

  14. White House Solar Champions of Change - Watch Now | Department...

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

    White House Champions of Change Recognizes Solar Innovator SunShot Grand Challenge Summit Opening Session Energy Department Announces New Prize Challenge to Drive Down Solar Costs...

  15. White House Council of Economic Advisers and Energy Department...

    Energy Savers [EERE]

    of Economic Advisers and Energy Department Release New Report on Resiliency of Electric Grid During Natural Disasters White House Council of Economic Advisers and Energy Department...

  16. White River Valley Electric Cooperative- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The residential and commercial appliance and heating rebate program encourages members to purchase Energy Star equipment that qualifies under the White River energy efficiency program. Items...

  17. White House Launches the Generation Indigenous Native Youth Challenge...

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

    the White House Domestic Policy Council Cecilia Muoz announced the launch of the Generation Indigenous Native Youth Challenge at the 2015 United National Indian Tribal Youth...

  18. EISPC White Paper on "State Approaches to Retention of Nuclear...

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

    (EISPC) has released a white paper on "State Approaches to Retention of Nuclear Power Plants" that examines operational, economic, and policy pressure points affecting...

  19. Food and Drug Administration White Oak Campus Environmental Stewardshi...

    Energy Savers [EERE]

    Stewardship and Cost Savings FEMP ESPC Success Story on water conservation and green energy at the Food and Drug Administration (FDA) White Oak Campus. PDF icon...

  20. Novel Materials for HIgh Efficiency White Phosphorescent OLED

    SciTech Connect (OSTI)

    Mark Thompson

    2008-03-31

    Our program was a materials intensive one, based on preparing new materials for phosphorescent based white organic LEDs (WOLEDs). Each of the principal projects are summarized.

  1. White-dwarf-white-dwarf galactic background in the LISA data

    SciTech Connect (OSTI)

    Edlund, Jeffrey A.; Tinto, Massimo; Krolak, Andrzej; Nelemans, Gijs [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States); Max-Planck-Institute for Gravitational Physics, Albert Einstein Institute, D-14476 Golm (Germany); Department of Astrophysics, IMAPP, Radboud University Nijmegen (Netherlands)

    2005-06-15

    LISA (Laser Interferometer Space Antenna) is a proposed space mission, which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation. In the low part of its frequency band, the LISA strain sensitivity will be dominated by the incoherent superposition of hundreds of millions of gravitational wave signals radiated by inspiraling white-dwarf binaries present in our own Galaxy. In order to estimate the magnitude of the LISA response to this background, we have simulated a synthesized population that recently appeared in the literature. Our approach relies on entirely analytic expressions of the LISA time-delay interferometric responses to the gravitational radiation emitted by such systems, which allows us to implement a computationally efficient and accurate simulation of the background in the LISA data. We find the amplitude of the galactic white-dwarf binary background in the LISA data to be modulated in time, reaching a minimum equal to about twice that of the LISA noise for a period of about two months around the time when the Sun-LISA direction is roughly oriented towards the Autumn equinox. This suggests that, during this time period, LISA could search for other gravitational wave signals incoming from directions that are away from the galactic plane. Since the galactic white-dwarf background will be observed by LISA not as a stationary but rather as a cyclostationary random process with a period of 1 yr, we summarize the theory of cyclostationary random processes, present the corresponding generalized spectral method needed to characterize such process, and make a comparison between our analytic results and those obtained by applying our method to the simulated data. We find that, by measuring the generalized spectral components of the white-dwarf background, LISA will be able to infer properties of the distribution of the white-dwarf binary systems present in our Galaxy.

  2. Discovery of a new class of coronal structures in white light eclipse images

    SciTech Connect (OSTI)

    Druckmüller, Miloslav; Habbal, Shadia Rifai; Morgan, Huw

    2014-04-10

    White light images of the solar corona, taken during total solar eclipses, capture the complex dynamic relationship between the coronal plasma and the magnetic field. This relationship can be recorded on timescales of seconds to minutes, within a few solar radii above the solar surface. Rays, large-scale loops, and streamers, which are the brightest structures in these images, have shaped current models of the coronal magnetic field and solar wind flow. We show in this work how the application of novel image processing techniques to unique high-resolution white light eclipse images reveals the presence of a new class of structures, reminiscent of smoke rings, faint nested expanding loops, expanding bubbles, and twisted helical structures. These features are interpreted as snapshots of the dynamical evolution of instabilities developing at prominence-corona interfaces and propagating outward with the solar wind.

  3. White House Conference on Global Climate Change

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    President Clinton has directed the White House office on Environmental Policy to coordinate an interagency process to develop a plan to fulfill the commitment he made in his Earth Day address on April 21, 1993. This plan will become the cornerstone of the Climate Change Plan that will be completed shortly after the Rio Accord enters into force. The Office on Environmental Policy established the Interagency Climate Change Mitigation Group to draw on the expertise of federal agencies including the National Economic Council; the Council of Economic Advisors; the Office of Science and Technology Policy; the Office of Management and Budget; the National Security Council; the Domestic Policy Council; the Environmental Protection Agency; and the Departments of Energy, Transportation, Agriculture, Interior, Treasury, Commerce, and State. Working groups have been established to examine six key policy areas: energy demand, energy supply, joint implementation, methane and other gases, sinks, and transportation. The purpose of the White House Conference on Global Climate Change was to ``tap the real-world experiences`` of diverse participants and seek ideas and information for meeting the President`s goals. During the opening session, senior administration officials defined the challenge ahead and encouraged open and frank conversation about the best possible ways to meet it.

  4. 100 LPW 800 Lm Warm White LED

    SciTech Connect (OSTI)

    Decai Sun

    2010-10-31

    An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in light output and efficacy. The new high power WW LED product is a die on ceramic surface mountable LED package. It has four 1x1 mm{sup 2} InGaN pump dice flip chip attached to a ceramic submount in 2x2 array, covered by warm white phosphor ceramic platelets called Lumiramicâ?¢ and an overmolded silicone lens encapsulating the LED array. The performance goal was achieved through breakthroughs in following key areas: (1) High efficiency pump LED development through pump LED active region design and epi growth quality improvement (funded by internal programs). (2) Increase in injection efficiency (IE) represented by reduction in forward voltage (V{sub f}) through the improvement of the silver-based p-contact and a reduction in spreading resistance. The injection efficiency was increased from 80% at the start of the program to 96% at the end of the program at 700 mA/mm{sup 2}. (3) Improvement in thermal design as represented by reduction in thermal resistance from junction to case, through improvement of the die to submount connection in the thin film flip chip (TFFC) LED and choosing the submount material of high thermal conductivity. A thermal resistance of 1.72 K/W was demonstrated for the high power LED package. (4) Improvement in extraction efficiency from the LED package through improvement of InGaN die level and package level optical extraction efficiency improvement. (5) Improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. Another achievement in the development of the phosphor integration technology is the demonstration of tight color control. The high power WW LED product developed has been proven to have good reliability. The manufacturing of the product will be done in Philips Lumiledsâ?? LUXEON Rebel production line which has produced billions of high power LEDs. The first high power WW LED product will be released to the market in 2011.

  5. 2013 White Book, Pacific Northwest Loads and Resources Study (summary)

    SciTech Connect (OSTI)

    2013-10-01

    The 2013 Pacific Northwest Loads and Resources Study (2013 White Book) is BPA's latest projection of the Pacific Northwest regional retail loads, contract obligations, contract purchases, and resource capabilities. The 2013 White Book is a snapshot of conditions as of October 1, 2013, documenting the loads and resources for the Federal system and region for the 10-year study period OY 2014 through 2023. The White Book contains projections of regional and Federal system load and resource capabilities, along with relevant definitions and explanations. The White Book also contains information obtained from formalized resource planning reports and data submittals including those from individual utilities, the Northwest Power and Conservation Council (Council), and the Pacific Northwest Utilities Conference Committee (PNUCC). Starting with the 2012 White Book, BPA changed the annual production schedule for future White Books. BPA is scheduled to publish a complete White Book, which includes a Federal System Needs Assessment analysis, every other year (even years). In the odd-numbered years, BPA will publish a biennial summary update (Supplement) that only contains major changes to the Federal System and Regional System analyses that have occurred since the last White Book. http://www.bpa.gov/power/pgp/whitebook/2013/index.shtml.

  6. Handling Whiting Aboard Fishing Vessels JOSEPH J. L1CCIARDELLO

    E-Print Network [OSTI]

    Handling Whiting Aboard Fishing Vessels JOSEPH J. L1CCIARDELLO Introduction The same fundamental principles for handling fresh fish in general aboard fishing vessels apply to whiting. There- fore, this article will review the factors which influence the quality of fish aboard fishing boats and will offer re

  7. % of non-featureless pixels SNOW WHITE MIRROR

    E-Print Network [OSTI]

    Nebel, Jean-Christophe

    Legend % of non-featureless pixels SNOW WHITE MIRROR Daniel Collins Supervisor: Jean and attractiveness. They indicate that the more symmetrical a person's face is the more attractive they are. The Snow perspective. A virtual Snow White mirror was created to analyse facial symmetry and produce symmetry

  8. Chaos expansion of heat equations with white noise potentials

    E-Print Network [OSTI]

    Hu, Yaozhong

    2002-02-01

    The asymptotic behavior as t --> infinity of the solution to the following stochastic heat equations [GRAPHICS] is investigated, where w is a space-time white noise or a space white noise. The use of lozenge means that the stochastic integral of 10...

  9. A wide binary trigger for white dwarf pollution

    E-Print Network [OSTI]

    Bonsor, Amy

    2015-01-01

    Metal pollution in white dwarf atmospheres is likely to be a signature of remnant planetary systems. Most explanations for this pollution predict a sharp decrease in the number of polluted systems with white dwarf cooling age. Observations do not confirm this trend, and metal pollution in old (1-5 Gyr) white dwarfs is difficult to explain. We propose an alternative, time-independent mechanism to produce the white dwarf pollution. The orbit of a wide binary companion can be perturbed by Galactic tides, approaching close to the primary star for the first time after billions of years of evolution on the white dwarf branch. We show that such a close approach perturbs a planetary system orbiting the white dwarf, scattering planetesimals onto star-grazing orbits, in a manner that could pollute the white dwarf's atmosphere. Our estimates find that this mechanism is likely to contribute to metal pollution, alongside other mechanisms, in up to a few percent of an observed sample of white dwarfs with wide binary compan...

  10. WHITING SCHOOL OF ENGINEERING Rising to the Challenge

    E-Print Network [OSTI]

    Ghosh, Somnath

    to knowledge, engineering human health, and improving global well-being and security. To support1 2 WHITING SCHOOL OF ENGINEERING Rising to the Challenge: The Campaign for Johns Hopkins Whiting School of Engineering Wyman Park Building, Suite 400 3400 North Charles Street Baltimore, Maryland 21218

  11. Call No. Title Author Location Gilbert White Collection

    E-Print Network [OSTI]

    US Army Corps of Engineers

    development in Sub-Saharan Africa : an agenda for action. World Bank. Hist-White TH7413.S45 1 Accelerating the acceptance of solar heating : North American experience and international implicati Sewell, W. R. Derrick. IWR-White TD345.A33 19 Achieving success in community water supply and sanitation projects Chandler

  12. The Spanish Square Kilometre Array White Book

    E-Print Network [OSTI]

    Pulido, J A Acosta; Alberdi, A; Alcolea, J; Alfaro, E J; Alonso-Herrero, A; Anglada, G; Arnalte-Mur, P; Ascasibar, Y; Ascaso, B; Azulay, R; Bachiller, R; Baez-Rubio, A; Battaner, E; Blasco, J; Brook, C B; Bujarrabal, V; Busquet, G; Caballero-Garcia, M D; Carrasco-Gonzalez, C; Casares, J; Castro-Tirado, A J; Colina, L; Colomer, F; de Gregorio-Monsalvo, I; del Olmo, A; Desmurs, J-F; Diego, J M; Dominguez-Tenreiro, R; Estalella, R; Fernandez-Soto, A; Florido, E; Font, J; Font, J A; Fuente, A; Garcia-Burillo, S; Garcia-Benito, R; Garcia-Lorenzo, B; de Paz, A Gil; Girart, J M; Goicoechea, J R; Gomez, J F; Gonzalez-Garcia, M; Gonzalez-Martin, O; Gonzalez-Serrano, J I; Gorgas, J; Gorosabel, J; Guijarro, A; Guirado, J C; Hernandez-Garcia, L; Hernandez-Monteagudo, C; Herranz, D; Herrero-Illana, R; Hu, Y-D; Huelamo, N; Huertas-Company, M; Iglesias-Paramo, J; Jeong, S; Jimenez-Serra, I; Knapen, J H; Lineros, R A; Lisenfeld, U; Marcaide, J M; Marquez, I; Marti, J; Marti, J M; Martinez-Gonzalez, E; Martin-Pintado, J; Marti-Vidal, I; Masegosa, J; Mayen-Gijon, J M; Mezcua, M; Mimica, S/ Migliari P; Moldon, J; Morata, O; Negueruela, I; Oates, S R; Osorio, M; Palau, A; Paredes, J M; Perea, J; Perez-Gonzalez, P G; Perez-Montero, E; Perez-Torres, M A; Perucho, M; Planelles, S; Pons, J A; Prieto, A; Quilis, V; Ramirez-Moreta, P; Almeida, C Ramos; Rea, N; Ribo, M; Rioja, M J; Espinosa, J M Rodriguez; Ros, E; Rubiño-Martin, J A; Ruiz-Granados, B; Sabater, J; Sanchez, M A P; Usero, A; Verdes-Montenegro, L; Vidal-Garcia, A; Vielva, P; Vilchez, J; Zhang, B-B

    2015-01-01

    The Square Kilometre Array (SKA) is called to revolutionise essentially all areas of Astrophysics. With a collecting area of about a square kilometre, the SKA will be a transformational instrument, and its scientific potential will go beyond the interests of astronomers. Its technological challenges and huge cost requires a multinational effort, and Europe has recognised this by putting the SKA on the roadmap of the European Strategy Forum for Research Infrastructures (ESFRI). The Spanish SKA White Book is the result of the coordinated effort of 119 astronomers from 40 different research centers. The book shows the enormous scientific interest of the Spanish astronomical community in the SKA and warrants an optimum scientific exploitation of the SKA by Spanish researchers, if Spain enters the SKA project.

  13. TIDAL NOVAE IN COMPACT BINARY WHITE DWARFS

    SciTech Connect (OSTI)

    Fuller, Jim; Lai Dong [Department of Astronomy, Cornell University, Ithaca, NY 14850 (United States)

    2012-09-01

    Compact binary white dwarfs (WDs) undergoing orbital decay due to gravitational radiation can experience significant tidal heating prior to merger. In these WDs, the dominant tidal effect involves the excitation of outgoing gravity waves in the inner stellar envelope and the dissipation of these waves in the outer envelope. As the binary orbit decays, the WDs are synchronized from outside in (with the envelope synchronized first, followed by the core). We examine the deposition of tidal heat in the envelope of a carbon-oxygen WD and study how such tidal heating affects the structure and evolution of the WD. We show that significant tidal heating can occur in the star's degenerate hydrogen layer. This layer heats up faster than it cools, triggering runaway nuclear fusion. Such 'tidal novae' may occur in all WD binaries containing a CO WD, at orbital periods between 5 minutes and 20 minutes, and precede the final merger by 10{sup 5}-10{sup 6} years.

  14. Heat Equations with Fractional White Noise Potentials

    SciTech Connect (OSTI)

    Hu, Y. [Department of Mathematics, University of Kansas, 405 Snow Hall, Lawrence, KS 66045-2142 (United States)], E-mail: hu@math.ukans.edu

    2001-07-01

    This paper is concerned with the following stochastic heat equations: ({partial_derivative}u{sub t}(x))/({partial_derivative}t=1/2 u{sub t}(x)+{omega}{sup H}.u{sub t}(x)), x element of {sup d}, t>0, where w{sup H} is a time independent fractional white noise with Hurst parameter H=(h{sub 1}, h{sub 2},..., h{sub d}) , or a time dependent fractional white noise with Hurst parameter H=(h{sub 0}, h{sub 1},..., h{sub d}) . Denote | H | =h{sub 1}+h{sub 2}+...+h{sub d} . When the noise is time independent, it is shown that if 1/2 d-1 , then the solution is in L{sub 2} and the L{sub 2} -Lyapunov exponent of the solution is estimated. When the noise is time dependent, it is shown that if 1/2 d- 2 /( 2h{sub 0}-1 ) , the solution is in L{sub 2} and the L{sub 2} -Lyapunov exponent of the solution is also estimated. A family of distribution spaces S{sub {rho}} , {rho} element of RR , is introduced so that every chaos of an element in S{sub {rho}} is in L{sub 2} . The Lyapunov exponents in S{sub {rho}} of the solution are also estimated.

  15. Implementing IPv6 as a Peer-to-Peer Overlay Network Lidong Zhou Robbert van Renesse Michael Marsh

    E-Print Network [OSTI]

    Birman, Kenneth P.

    router with a master/slave ar- chitecture. We show how different slaves can be constructed to tunnel applications without the need for special-purpose Application Level Gateways (ALGs) and non-standard P2P

  16. Light extraction enhanced white light-emitting diodes with multi-layered phosphor configuration

    E-Print Network [OSTI]

    You, Jiun Pyng; Tran, Nguyen T.; Shi, Frank G.

    2010-01-01

    for general white LED lighting. ©2010 Optical Society offor general white LED lighting. #122987 - $15.00 USD (C)state lighting: Failure analysis of white LEDs,” J. Cryst.

  17. Intersectionality and the Perpetuation of White Male Power through Interracial Sexual Violence 

    E-Print Network [OSTI]

    Feinstein, Rachel Anne

    2014-04-02

    The purpose of this dissertation research is to investigate the reactions and attitudes of white men, white women, black men, and black women to the sexual violence of enslaved black women carried out by white men. Using an intersectional approach...

  18. The White Dwarf -- White Dwarf galactic background in the LISA data

    E-Print Network [OSTI]

    Edlund, J A; Królak, A; Nelemans, G; Edlund, Jeffrey A.; Tinto, Massimo; Krolak, Andrzej; Nelemans, Gijs

    2005-01-01

    LISA (Laser Interferometer Space Antenna) is a proposed space mission, which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation. In the low-part of its frequency band, the LISA strain sensitivity will be dominated by the incoherent superposition of hundreds of millions of gravitational wave signals radiated by inspiraling white-dwarf binaries present in our own galaxy. In order to estimate the magnitude of the LISA response to this background, we have simulated a synthesized population that recently appeared in the literature. We find the amplitude of the galactic white-dwarf binary background in the LISA data to be modulated in time, reaching a minimum equal to about twice that of the LISA noise for a period of about two months around the time when the Sun-LISA direction is roughly oriented towards the Autumn equinox. Since the galactic white-dwarfs background will be observed by LISA not as a stationary but rather as a cyc...

  19. Simulation of the White Dwarf -- White Dwarf galactic background in the LISA data

    E-Print Network [OSTI]

    Edlund, J A; Królak, A; Nelemans, G; Edlund, Jeffrey A.; Tinto, Massimo; Kr\\'olak, Andrzej; Nelemans, Gijs

    2005-01-01

    LISA (Laser Interferometer Space Antenna) is a proposed space mission, which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation. In the low-part of its frequency band, the LISA strain sensitivity will be dominated by the incoherent superposition of hundreds of millions of gravitational wave signals radiated by inspiraling white-dwarf binaries present in our own galaxy. In order to estimate the magnitude of the LISA response to this background, we have simulated a synthesized population that recently appeared in the literature. We find the amplitude of the galactic white-dwarf binary background in the LISA data to be modulated in time, reaching a minimum equal to about twice that of the LISA noise for a period of about two months around the time when the Sun-LISA direction is roughly oriented towards the Autumn equinox. Since the galactic white-dwarfs background will be observed by LISA not as a stationary but rather as a cyc...

  20. Applications Cloud Computing Developer World Mobilize Security Central Virtualization Adventures in IT Share or Email | Print | Add a comment | Recommend This

    E-Print Network [OSTI]

    Rogers, John A.

    Applications Cloud Computing Developer World Mobilize Security Central Virtualization Adventures | White paper Security convergence equals network security cost savings InfoWorld Home / Hardware

  1. Thermal Energy Harvesting with Thermoelectrics for Self-powered Sensors: With Applications to Implantable Medical Devices, Body Sensor Networks and Aging in Place

    E-Print Network [OSTI]

    Chen, Alic

    2011-01-01

    R. M. White, “A MEMS AC current sensor for residential anddevices [11-13], MEMS AC current sensor [14] and MEMSwireless sensor applications and medical monitoring. MEMS-

  2. White Kids: Identity Construction, Critical Mass, and Symbolic Exclusion in High School Cliques and other Groups

    E-Print Network [OSTI]

    Lueck, Kerstin; Steffen, Hayley

    2011-01-01

    M. (1997). The social construction of Whiteness. In R.bre White Kids: Identity Construction, Critical Mass, andKeywords: Identity Construction, Symbolic Exclusion,

  3. President Obama Announces New Advances and Commitments to Support Tribes at White House Tribal Nations Conference

    Broader source: Energy.gov [DOE]

    The White House brought together tribal leaders from federally recognized tribes to participate in the 7th Annual White House Tribal Nations Conference on Nov. 5, 2015.

  4. The Revival of White Holes as Small Bangs

    E-Print Network [OSTI]

    Alon Retter; Shlomo Heller

    2011-07-17

    Black holes are extremely dense and compact objects from which light cannot escape. There is an overall consensus that black holes exist and many astronomical objects are identified with black holes. White holes were understood as the exact time reversal of black holes, therefore they should continuously throw away material. It is accepted, however, that a persistent ejection of mass leads to gravitational pressure, the formation of a black hole and thus to the "death of while holes". So far, no astronomical source has been successfully tagged a white hole. The only known white hole is the Big Bang which was instantaneous rather than continuous or long-lasting. We thus suggest that the emergence of a white hole, which we name a 'Small Bang', is spontaneous - all the matter is ejected at a single pulse. Unlike black holes, white holes cannot be continuously observed rather their effect can only be detected around the event itself. Gamma ray bursts are the most energetic explosions in the universe. Long gamma-ray bursts were connected with supernova eruptions. There is a new group of gamma-ray bursts, which are relatively close to Earth, but surprisingly lack any supernova emission. We propose identifying these bursts with white holes. White holes seem like the best explanation of gamma-ray bursts that appear in voids. We also predict the detection of rare gigantic gamma-ray bursts with energies much higher than typically observed.

  5. A Very Low-Luminosity, Very Cool, DC White Dwarf

    E-Print Network [OSTI]

    Hugh Harris; Conard Dahn; Frederick Vrba; Arne Henden; James Liebert; Gary Schmidt; Neill Reid

    1999-06-03

    The star LHS 3250 is found to be a white dwarf at a distance of 30 pc. Its absolute magnitudes (M_V = 15.72; M_bol = 16.2) put it among the least-luminous white dwarfs known. Its optical spectrum shows no features, indicating it has a DC classification, and it shows no detectable polarization, indicating it does not have a very strong magnetic field. However, its broadband colors show it to have a unique spectral energy distribution, and it stands out from all other stars in BVI and other broadband photometric surveys. We discuss these properties, and conclude that LHS 3250 must be an extremely cool white dwarf with strong collision-induced absorption at red-infrared wavelengths from molecular hydrogen, in accord with models for very cool white dwarf atmospheres. If so, it is the first such star known, and the first star to provide observational evidence supporting these models. It suggests that other very cool white dwarfs, both halo white dwarfs and the oldest disk white dwarfs, also may have colors affected by similar absorption. The atmospheric composition of LHS 3250 is not known, and therefore its temperature is poorly determined. It may be a helium-core star with a mass 0.3-0.45 M_solar and a product of mass-transfer in a close binary system. However, until its temperature is better known, its mass and age remain uncertain.

  6. File:Transmission Siting White Paper Final.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New Pages RecentTempCampApplicationWorksheet 2011.pdf JumpTransmission Siting White Paper

  7. Modeling Tidal Freshwater Marsh Sustainability in the Sacramento–San Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    sediment yield of the Sacramento River, California, 1957–with application to the Sacramento–San Joaquin River Delta.settlement geography of the Sacramento–San Joaquin Delta,

  8. The Binary White Dwarf LHS 3236

    E-Print Network [OSTI]

    Harris, Hugh; Dupuy, Trent; Canzian, Blaise; Guetter, Harry; Hartkopf, William; Ireland, Michael; Leggett, Sandy; Levine, Stephen; Liu, Michael; Luginbuhl, Christian; Monet, Alice; Stone, Ronald; Subasavage, John; Tilleman, Trudy; Walker, Richard

    2013-01-01

    The white dwarf LHS 3236 (WD1639+153) is shown to be a double-degenerate binary, with each component having a high mass. Astrometry at the U.S. Naval Observatory gives a parallax and distance of 30.86 +/- 0.25 pc and a tangential velocity of 98 km/s, and reveals binary orbital motion. The orbital parameters are determined from astrometry of the photocenter over more than three orbits of the 4.0-year period. High-resolution imaging at the Keck Observatory resolves the pair with a separation of 31 and 124 mas at two epochs. Optical and near-IR photometry give a set of possible binary components. Consistency of all data indicates that the binary is a pair of DA stars with temperatures near 8000 and 7400 K and with masses of 0.93 and 0.91 M_solar; also possible, is a DA primary and a helium DC secondary with temperatures near 8800 and 6000 K and with masses of 0.98 and 0.69 M_solar. In either case, the cooling ages of the stars are ~3 Gyr and the total ages are <4 Gyr. The combined mass of the binary (1.66--1....

  9. The binary white dwarf LHS 3236

    SciTech Connect (OSTI)

    Harris, Hugh C.; Dahn, Conard C.; Canzian, Blaise; Guetter, Harry H.; Levine, Stephen E.; Luginbuhl, Christian B.; Monet, Alice K. B.; Stone, Ronald C.; Subasavage, John P.; Tilleman, Trudy; Walker, Richard L. [US Naval Observatory, 10391 West Naval Observatory Road, Flagstaff, AZ 86001-8521 (United States); Dupuy, Trent J.; Liu, Michael C. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Hartkopf, William I. [US Naval Observatory, 3450 Massachusetts Avenue, N.W., Washington, DC 20392-5420 (United States); Ireland, Michael J. [Department of Physics and Astronomy, Macquarie University, New South Wales, NSW 2109 (Australia); Leggett, S. K., E-mail: hch@nofs.navy.mil [Gemini Observatory, 670 N. Aohoku Place, Hilo, HI 96720 (United States)

    2013-12-10

    The white dwarf LHS 3236 (WD1639+153) is shown to be a double-degenerate binary, with each component having a high mass. Astrometry at the U.S. Naval Observatory gives a parallax and distance of 30.86 ± 0.25 pc and a tangential velocity of 98 km s{sup –1}, and reveals binary orbital motion. The orbital parameters are determined from astrometry of the photocenter over more than three orbits of the 4.0 yr period. High-resolution imaging at the Keck Observatory resolves the pair with a separation of 31 and 124 mas at two epochs. Optical and near-IR photometry give a set of possible binary components. Consistency of all data indicates that the binary is a pair of DA stars with temperatures near 8000 and 7400 K and with masses of 0.93 and 0.91 M {sub ?}; also possible is a DA primary and a helium DC secondary with temperatures near 8800 and 6000 K and with masses of 0.98 and 0.69 M {sub ?}. In either case, the cooling ages of the stars are ?3 Gyr and the total ages are <4 Gyr. The combined mass of the binary (1.66-1.84 M {sub ?}) is well above the Chandrasekhar limit; however, the timescale for coalescence is long.

  10. Thermonuclear detonations ensuing white dwarf mergers

    E-Print Network [OSTI]

    Dan, Marius; Brüggen, Marcus; Ramirez-Ruiz, Enrico; Rosswog, Stephan

    2015-01-01

    The merger of two white dwarfs (WDs) has for many years not been considered as the favoured model for the progenitor system of type Ia supernovae (SNe Ia). But recent years have seen a change of opinion as a number of studies, both observational and theoretical, have concluded that they should contribute significantly to the observed type Ia supernova rate. In this paper, we study the ignition and propagation of detonation through post-merger remnants and we follow the resulting nucleosynthesis up to the point where a homologous expansion is reached. In our study we cover the entire range of WD masses and compositions. For the emergence of a detonation we study several setups, guided by both merger remnants from our own simulations and by results taken from the literature. We carefully compare the nucleosynthetic yields of successful explosions with SN Ia observations. Only three of our models are consistent with all the imposed constraints and potentially lead to a standard type Ia event. The first one, a $0...

  11. July 2014, IDC #250102 WHITE PAPER

    E-Print Network [OSTI]

    Greenberg, Albert

    (capex) as well as operational expenses (opex). Many organizations are turning to third parties of using a third-party services firm for hosted application management include shifting costs from capex

  12. Vertebral Bomb Radiocarbon Suggests Extreme Longevity in White Sharks

    E-Print Network [OSTI]

    Hamady, Li Ling

    Conservation and management efforts for white sharks (Carcharodon carcharias) remain hampered by a lack of basic demographic information including age and growth rates. Sharks are typically aged by counting growth bands ...

  13. Strengthening Sustainable Manufacturing in The White House, Environmental Protection Agency

    E-Print Network [OSTI]

    manufacturing. Topics of discussion will include sustainable manufacturing, lean manufacturing, workforce issuesStrengthening Sustainable Manufacturing in Indiana The White House, Environmental Protection Agency to participate in an event with Matt Bogoshian, to discuss Sustainable Manufacturing, which was featured

  14. Ian R.White1 Russell Pickford2

    E-Print Network [OSTI]

    Ian R.White1 Russell Pickford2 John Wood3 J. Mark Skehel1 Bevan Gangadharan4 Paul Cutler1 1 Genomic protocols on the downstream processing of a test radiolabeled protein were stud- ied. The data confirms

  15. Celebrating Women's History Month with the White House Council...

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

    has said, no one working full time in this country should have to raise children in poverty. This Spring, the President will also host the first ever White House Summit on...

  16. A Young White Dwarf with an Infrared Excess

    E-Print Network [OSTI]

    Xu, S; Pantoja, B; Klein, B; Zuckerman, B; Su, K Y L; Meng, H Y A

    2015-01-01

    Using observations of Spitzer/IRAC, we report the serendipitous discovery of excess infrared emission from a single white dwarf PG 0010+280. At a temperature of 27,220 K and a cooling age of 16 Myr, it is the hottest and youngest white dwarf to display an excess at 3-8 $\\mu$m. The infrared excess can be fit by either an opaque dust disk within the tidal radius of the white dwarf or a 1300 K blackbody, possibly from an irradiated substellar object or a re-heated giant planet. PG 0010+280 has two unique properties that are different from white dwarfs with a dust disk: (i) relatively low emission at 8 $\\mu$m and (ii) non-detection of heavy elements in its atmosphere from high-resolution spectroscopic observations with Keck/HIRES. The origin of the infrared excess remains unclear.

  17. White County REMC- Residential Geothermal Heat Pump Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Additional rebates are available for White county REMC customers through the Power Moves program adminstered by the Wabash Valley Power Association.  Visit the Power Moves website for more inform...

  18. NextSTEPS White Paper: Three Routes Forward for Biofuels

    E-Print Network [OSTI]

    California at Davis, University of

    NextSTEPS White Paper: Three Routes Forward for Biofuels: Incremental, Transitional, and Leapfrog NOT CITE #12;Three Routes Forward for Biofuels: Incremental, Transitional, and Leapfrog 2 Contents ......................................................................................................................................12 1.a. The Need for Low Carbon Biofuels

  19. Advances in Chip Technology, Packaging Enable White LED Breakthroughs

    Broader source: Energy.gov [DOE]

    Significant advances in chip technology have enabled Cree, Inc.'s Santa Barbara Technology Center to demonstrate white LEDs with record efficacies as high as 74 lumens per watt - on par with...

  20. White-Box Security Notions for Symmetric Encryption Schemes

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    in the last decade. Several white-box implementations of standard block-ciphers (DES, AES) have been proposed of a cryptosystem, cryptographers consider attack sce- narios where an adversary is only given a black-box access

  1. Public Interest Energy Research (PIER) Program White Paper

    E-Print Network [OSTI]

    Bromirski, Peter D.

    · Renewable Energy Technologies · Transportation In 2003, the California Energy Commission's PIER Program PROJECTIONS: 2000­2100 A White Paper from the California Energy Commission's California Climate Change Center Prepared for: California Energy Commission Prepared by: Scripps Institution

  2. White organic light-emitting diodes: Status and perspective

    E-Print Network [OSTI]

    Reineke, Sebastian

    White organic light-emitting diodes (OLEDs) are ultrathin, large-area light sources made from organic semiconductor materials. Over the past decades, much research has been spent on finding suitable materials to realize ...

  3. Texas white-tailed deer Internet harvest model 

    E-Print Network [OSTI]

    Garrett, Jennifer Nicole

    2009-05-15

    White-tailed deer (Odocoileus virginianus) is an intensively managed game species throughout Texas and the United States. Modeling is a tool that has been used to evaluate various management practices and their potential ...

  4. The development of an aquatic spill model for the White Oak Creek watershed, Oak Ridge National Laboratory, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Johnson, R.O.

    1996-05-01

    This study develops an aquatic spill model applicable to the White Oak Creek watershed draining the Oak Ridge National Laboratory. Hazardous, toxic, and radioactive chemicals are handled and stored on the laboratory reservation. An accidental spill into the White Oak Creek watershed could contaminate downstream water supplies if insufficient dilution did not occur. White Oak Creek empties into the Clinch River, which flows into the Tennessee River. Both rivers serve as municipal water supplies. The aquatic spill model provides estimates of the dilution at sequential downstream locations along White Oak creek and the Clinch River after an accidental spill of a liquid containing a radioactively decaying constituent. The location of the spill on the laboratory is arbitrary, while hydrologic conditions range from drought to extreme flood are simulated. The aquatic spill model provides quantitative estimates with which to assess water quality downstream from the site of the accidental spill, allowing an informed decision to be made whether to perform mitigating measures so that the integrity of affected water supplies is not jeopardized.

  5. On the White Dwarf distances to Galactic Globular Clusters

    E-Print Network [OSTI]

    M. Salaris; S. Cassisi; E. Garcia-Berro; J. Isern; S. Torres

    2001-03-20

    We analyze in detail various possible sources of systematic errors on the distances of globular clusters derived by fitting a local template DA white dwarf sequence to the cluster counterpart (the so-called WD-fitting technique). We find that the unknown thickness of the hydrogen layer of white dwarfs in clusters plays a non negligible role. For reasonable assumptions - supported by the few sparse available observational constraints - about the unknown mass and thickness of the hydrogen layer for the cluster white dwarfs, a realistic estimate of the systematic error on the distance is within +-0.10 mag. However, particular combinations of white dwarf masses and envelope thicknesses - which at present cannot be excluded a priori - could produce larger errors. Contamination of the cluster DA sequence by non-DA white dwarfs introduces a very small systematic error of about -0.03 mag in the Mv/(V-I) plane, but in the Mv/(B-V) plane the systematic error amounts to ~ +0.20 mag. Contamination by white dwarfs with helium cores should not influence appreciably the WD-fitting distances. Finally, we obtain a derivative D((m-M)v)/D(E(B-V))~ -5.5 for the WD-fitting distances, which is very similar to the dependence found when using the Main Sequence fitting technique.

  6. Greening of the White House: Six year report

    SciTech Connect (OSTI)

    None

    1999-11-01

    The White House, which recently celebrated its 200th birthday, has a long tradition of demonstrating technological innovation. In keeping with that tradition, President Clinton announced the Greening of the White House Initiative on Earth Day 1993. The initiative improves the energy and environmental performance of the White House complex by identifying opportunities to reduce waste, lower energy use, and make an appropriate use of renewable resources, all while improving indoor air quality and building comfort. This report on President Clinton's legacy of greening at the White House summarizes progress made to date and gives an overview of new opportunities identified during the past year. It also includes an environmental history of the White House and a short tour of the buildings that make up the White House complex. Over the past five years, this initiative has involved hundreds of dedicated people from both within and outside government. A description of how they worked together to develop and implement the Greening Plan is also included in this report.

  7. Ages of White Dwarf-Red Subdwarf Systems

    E-Print Network [OSTI]

    Hektor Monteiro; Wei-Chun Jao; Todd Henry; John Subasavage; Thom Beaulieu

    2005-10-12

    We provide the first age estimates for two recently discovered white dwarf-red subdwarf systems, LHS 193AB and LHS 300AB. These unusual systems provide a new opportunity for linking the reliable age estimates for the white dwarfs to the (measurable) metallicities of the red subdwarfs. We have obtained precise photometry in the $V_{J}R_{KC}I_{KC}JH$ bands and spectroscopy covering from 6000\\AA to 9000\\AA for the two new systems, as well as for a comparison white dwarf-main sequence red dwarf system, GJ 283 AB. Using model grids available in the literature, we estimate the cooling age as well as temperature, surface gravity, mass, progenitor mass and {\\it total} lifetimes of the white dwarfs. The results indicate that the two new systems are probably ancient thick disk objects with ages of at least 6-9 Gyr. We also conduct searches of red dwarf and white dwarf compendia from SDSS data and the L{\\'e}pine Shara Proper Motion (LSPM) catalog for additional common proper motion white dwarf-red subdwarf systems. Only seven new candidate systems are found, which indicates the rarity of these systems.

  8. Final Independent External Peer Review Report for the White Oak Bayou Federal Flood Damage

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report for the White Oak Bayou Federal Flood Damage Independent External Peer Review Report for the White Oak Bayou Federal Flood Damage Reduction Plan PEER REVIEW REPORT for the White Oak Bayou Federal Flood Damage Reduction Plan EXECUTIVE SUMMARY White

  9. Race, Class, and Whiteness in Gifted and Talented Identification: A Case Study

    E-Print Network [OSTI]

    Barlow, Kathleen; Dunbar, Elaine

    2010-01-01

    G. , & Eaton, S. (1996). Dismantling desegregation: Theresistant to change. Dismantling underlying white property

  10. Classification of Sunspot Groups Using SOHO/MDI Magnetogram and White-Light

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Classification of Sunspot Groups Using SOHO/MDI Magnetogram and White-Light Images Tuesday Data (or, what I currently have available) · 1038 white-light images from May 19, 1996 through December procedure will be developed using SOHO/MDI magnetogram and white- light images. SOHO/MDI white-light image

  11. The habitability and detection of Earth-like planets orbiting cool white L. Fossati1

    E-Print Network [OSTI]

    The habitability and detection of Earth-like planets orbiting cool white dwarfs. L. Fossati1 orbiting white dwarfs. As a white dwarf cools from 6000 K to 4000 K, a planet orbiting at 0.01 AU would with the persistence of complex life. Po- larisation due to a terrestrial planet in the CHZ of a cool white dwarf

  12. Contribution of White Dwarfs to Cluster Masses

    E-Print Network [OSTI]

    Ted von Hippel

    1998-02-14

    I present a literature search through 31 July 1997 of white dwarfs (WDs) in open and globular clusters. There are 36 single WDs and 5 WDs in binaries known among 13 open clusters, and 340 single WDs and 11 WDs in binaries known among 11 globular clusters. From these data I have calculated WD mass fractions for four open clusters (the Pleiades, NGC 2168, NGC 3532, and the Hyades) and one globular cluster (NGC 6121). I develop a simple model of cluster evolution that incorporates stellar evolution but not dynamical evolution to interpret the WD mass fractions. I augment the results of my simple model with N-body simulations incorporating stellar evolution (Terlevich 1987; de la Feunte Marcos 1996; Vesperini & Heggie 1997). I find that even though these clusters undergo moderate to strong kinematical evolution the WD mass fraction is relatively insensitive to kinematical evolution. By comparing the cluster mass functions to that of the Galactic disk, and incorporating plausibility arguments for the mass function of the Galactic halo, I estimate the WD mass fraction in these two populations. I assume the Galactic disk is ~10 Gyrs old (Winget et al. 1987; Liebert, Dahn, & Monet 1988; Oswalt et al. 1996) and that the Galactic halo is ~12 Gyrs old (Reid 1997b; Gratton et al. 1997; Chaboyer et al. 1998), although the WD mass fraction is insensitive to age in this range. I find that the Galactic halo should contain 8 to 9% (alpha = -2.35) or perhaps as much as 15 to 17% (alpha = -2.0) of its stellar mass in the form of WDs. The Galactic disk WD mass fraction should be 6 to 7% (alpha = -2.35), consistent with the empirical estimates of 3 to 7% (Liebert, Dahn, & Monet 1988; Oswalt et al. 1996). (abridged)

  13. Love isn't always black and white: understanding black-white interracial couples, their challenges, and their dyadic communication 

    E-Print Network [OSTI]

    Wilson, Misty Michelle

    2009-05-15

    While a great deal of sociological and psychological research has been done on black-white interracial couples and the challenges they have faced in past eras, the communication between the partners remains largely ...

  14. A COMPREHENSIVE SPECTROSCOPIC ANALYSIS OF DB WHITE DWARFS

    SciTech Connect (OSTI)

    Bergeron, P.; Wesemael, F.; Dufour, Pierre; Beauchamp, A.; Hunter, C.; Gianninas, A.; Limoges, M.-M.; Dufour, Patrick; Fontaine, G. [Departement de Physique, Universite de Montreal, C.P. 6128, Succ. Centre-Ville, Montreal, QC H3C 3J7 (Canada); Saffer, Rex A. [Strayer University, 234 Mall Boulevard, Suite G-50, King of Prussia, PA 19406 (United States); Ruiz, M. T. [Departamento de Astronomia, Universidad de Chile, Casilla 36-D, Santiago (Chile); Liebert, James, E-mail: bergeron@astro.umontreal.ca, E-mail: wesemael@astro.umontreal.ca, E-mail: gianninas@astro.umontreal.ca, E-mail: limoges@astro.umontreal.ca, E-mail: dufourpa@astro.umontreal.ca, E-mail: fontaine@astro.umontreal.ca, E-mail: alain.beauchamp@fti-ibis.com, E-mail: chris.hunter@yale.edu, E-mail: rex.saffer@strayer.edu, E-mail: mtruiz@das.uchile.cl [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States)

    2011-08-10

    We present a detailed analysis of 108 helium-line (DB) white dwarfs based on model atmosphere fits to high signal-to-noise optical spectroscopy. We derive a mean mass of 0.67 M{sub sun} for our sample, with a dispersion of only 0.09 M{sub sun}. White dwarfs also showing hydrogen lines, the DBA stars, comprise 44% of our sample, and their mass distribution appears similar to that of DB stars. As in our previous investigation, we find no evidence for the existence of low-mass (M < 0.5 M{sub sun}) DB white dwarfs. We derive a luminosity function based on a subset of DB white dwarfs identified in the Palomar-Green Survey. We show that 20% of all white dwarfs in the temperature range of interest are DB stars, although the fraction drops to half this value above T{sub eff} {approx} 20,000 K. We also show that the persistence of DB stars with no hydrogen features at low temperatures is difficult to reconcile with a scenario involving accretion from the interstellar medium, often invoked to account for the observed hydrogen abundances in DBA stars. We present evidence for the existence of two different evolutionary channels that produce DB white dwarfs: the standard model where DA stars are transformed into DB stars through the convective dilution of a thin hydrogen layer and a second channel where DB stars retain a helium atmosphere throughout their evolution. We finally demonstrate that the instability strip of pulsating V777 Her white dwarfs contains no non-variables, if the hydrogen content of these stars is properly accounted for.

  15. High-Power Warm-White Hybrid LED Package for Illumination

    SciTech Connect (OSTI)

    Soer, Wouter

    2013-09-19

    In this project, an integrated warm-white hybrid light engine was developed. The hybrid approach involves combining phosphor-converted off-white InGaN LEDs and direct-emitting red AlInGaP LEDs in a single light engine to achieve high efficacy together with high color rendering index. We developed and integrated technology improvements in InGaN and AlInGaP die technology, phosphor technology, package architecture and encapsulation, to realize a hybrid warm-white LED package with an efficacy of 140 lm/W at a correlated color temperature of 3000K and a color rendering index of 90, measured under representative operating conditions. This efficacy is 26% higher than the best warm-white LEDs of similar specification that are commercially available at the end of the project. Since the InGaN- and AlInGaP-based LEDs used in the hybrid engine show different behavior as a function of current and temperature, a control system needs to be in place to ensure a stable color point over all operating conditions. In this project, we developed an electronic control circuit that is fully integrated into the light engine in such a way that the module can simply be driven by a conventional single-channel driver. The integrated control circuit uses a switch-mode boost converter topology to control the LED drive currents based on the temperature and the input current of the light engine. A color control performance of 5 SDCM was demonstrated, and improvement to 3 SDCM is considered well within reach. The combination of high efficacy and ease of integration with existing single-channel drivers is expected to facilitate the adoption of the hybrid technology and accelerate the energy savings associated with solid-state lighting. In the product commercialization plan, downlights and indirect-lit troffers have been selected as the first target applications for this product concept. Fully functional integrated prototypes have been developed for both applications, and the business case evaluation is ongoing as of the end of the project.

  16. Structural, thermal, optical properties and simulation of white light of titanium-tungstate-tellurite glasses doped with dysprosium

    SciTech Connect (OSTI)

    Jyothi, L. [School of Physics, University of Hyderabad, Hyderabad 500046 (India); Upender, G. [Glass Science and Technology Section, Glass Division, CSIR-CGCRI, Kolkata 700032 (India); Kuladeep, R. [School of Physics, University of Hyderabad, Hyderabad 500046 (India); Rao, D. Narayana, E-mail: dnrsp@uohyd.ernet.in [School of Physics, University of Hyderabad, Hyderabad 500046 (India)

    2014-02-01

    Graphical abstract: CIE coordinate diagram of different concentrations of the Dy{sup 3+}-doped TTWD glasses with coordinates in the white light region. - Highlights: • Radiative lifetime of {sup 4}F{sub 9/2} level of Dy{sup 3+} ions is longer in the tellurite glass. • Quantum efficiency is found to be high. • These glasses are suitable materials for generating white light. - Abstract: Structural, thermal, optical properties and simulation of white light of Dy{sup 3+}-doped tellurite glasses of composition TTWD: (75 ? x)TeO{sub 2} ? 10TiO{sub 2} ? 15WO{sub 3} ? xDy{sub 2}O{sub 3} (x = 0, 0.1, 0.5, 1.0 and 2.0 mol%) were investigated. Raman spectra revealed that the glass contains TeO{sub 4}, TeO{sub 3}, WO{sub 4} and WO{sub 6} units. Differential scanning calorimetry (DSC) measurements were carried out to measure the glass transition temperature of all the glasses. From the optical absorption spectra, luminescence spectra and using the Judd–Ofelt (JO) analysis, we estimated the radiative transition probabilities, emission cross-sections, branching ratios and radiative lifetimes. The decay curves at lower concentrations are exponential while they show a non-exponential behavior at higher concentrations (?0.5 mol%) due to energy transfer processes. The effective lifetime for the {sup 4}F{sub 9/2} level decreases with increase in Dy{sub 2}O{sub 3} concentration for the glasses under investigation. The non-exponential decay curves could fit well to the Inokuti–Hirayama (IH) model with S = 6, indicating that the nature of interaction responsible for energy transfer is of dipole–dipole type. Simulation of white light is examined with varying concentration and the results indicate that these glasses are suitable for white light emitting diode applications.

  17. The White Dwarf Cooling Sequence of NGC6397

    E-Print Network [OSTI]

    Brad M. S. Hansen; Jay Anderson; James Brewer; Aaron Dotter; Greg. G. Fahlman; Jarrod Hurley; Jason Kalirai; Ivan King; David Reitzel; Harvey B. Richer; R. Michael Rich; Michael M. Shara; Peter B. Stetson

    2007-02-20

    We present the results of a deep Hubble Space Telescope (HST) exposure of the nearby globular cluster NGC6397, focussing attention on the cluster's white dwarf cooling sequence. This sequence is shown to extend over 5 magnitudes in depth, with an apparent cutoff at magnitude F814W=27.6. We demonstrate, using both artificial star tests and the detectability of background galaxies at fainter magnitudes, that the cutoff is real and represents the truncation of the white dwarf luminosity function in this cluster. We perform a detailed comparison between cooling models and the observed distribution of white dwarfs in colour and magnitude, taking into account uncertainties in distance, extinction, white dwarf mass, progenitor lifetimes, binarity and cooling model uncertainties. After marginalising over these variables, we obtain values for the cluster distance modulus and age of \\mu_0 = 12.02 \\pm 0.06 and T_c = 11.47 \\pm 0.47Gyr (95% confidence limits). Our inferred distance and white dwarf initial-final mass relations are in good agreement with other independent determinations, and the cluster age is consistent with, but more precise than, prior determinations made using the main sequence turnoff method. In particular, within the context of the currently accepted \\Lambda CDM cosmological model, this age places the formation of NGC6397 at a redshift z=3, at a time when the cosmological star formation rate was approaching its peak.

  18. The White Dwarf Cooling Sequence of NGC6397

    E-Print Network [OSTI]

    Hansen, B M S; Brewer, J; Dotter, A; Fahlman, G G; Hurley, J; King, I; Reitzel, David B; Richer, H B; Rich, R M; Shara, M M; Stetson, P B; Hansen, Brad M. S.; Anderson, Jay; Brewer, James; Dotter, Aaron; Fahlman, Greg. G.; Hurley, Jarrod; King, Ivan; Reitzel, David; Richer, Harvey B.; Shara, Michael M.; Stetson, Peter B.

    2007-01-01

    We present the results of a deep Hubble Space Telescope (HST) exposure of the nearby globular cluster NGC6397, focussing attention on the cluster's white dwarf cooling sequence. This sequence is shown to extend over 5 magnitudes in depth, with an apparent cutoff at magnitude F814W=27.6. We demonstrate, using both artificial star tests and the detectability of background galaxies at fainter magnitudes, that the cutoff is real and represents the truncation of the white dwarf luminosity function in this cluster. We perform a detailed comparison between cooling models and the observed distribution of white dwarfs in colour and magnitude, taking into account uncertainties in distance, extinction, white dwarf mass, progenitor lifetimes, binarity and cooling model uncertainties. After marginalising over these variables, we obtain values for the cluster distance modulus and age of \\mu_0 = 12.02 \\pm 0.06 and T_c = 11.47 \\pm 0.47Gyr (95% confidence limits). Our inferred distance and white dwarf initial-final mass relat...

  19. GRMHD formulation of highly super-Chandrasekhar rotating magnetised white dwarfs: Stable configurations of non-spherical white dwarfs

    E-Print Network [OSTI]

    Sathyawageeswar Subramanian; Banibrata Mukhopadhyay

    2015-10-01

    Here we extend the exploration of significantly super-Chandrasekhar magnetised white dwarfs by numerically computing axisymmetric stationary equilibria of differentially rotating magnetised polytropic compact stars in general relativity (GR), within the ideal magnetohydrodynamic regime. We use a general relativistic magnetohydrodynamic (GRMHD) framework that describes rotating and magnetised axisymmetric white dwarfs, choosing appropriate rotation laws and magnetic field profiles (toroidal and poloidal). The numerical procedure for finding solutions in this framework uses the 3+1 formalism of numerical relativity, implemented in the open source XNS code. We construct equilibrium sequences by varying different physical quantities in turn, and highlight the plausible existence of super-Chandrasekhar white dwarfs, with masses in the range of 2-3 solar mass, with central (deep interior) magnetic fields of the order of $10^{14}$ Gauss and differential rotation with surface time periods of about 1-10 seconds. We note that such white dwarfs are candidates for the progenitors of peculiar, overluminous type Ia supernovae, to which observational evidence ascribes mass in the range 2.1-2.8 solar mass. We also present some interesting results related to the structure of such white dwarfs, especially the existence of polar hollows in special cases.

  20. Constraining the neutrino magnetic dipole moment from white dwarf pulsations

    SciTech Connect (OSTI)

    Córsico, A.H.; Althaus, L.G.; García-Berro, E. E-mail: althaus@fcaglp.unlp.edu.ar E-mail: kepler@if.ufrgs.br

    2014-08-01

    Pulsating white dwarf stars can be used as astrophysical laboratories to constrain the properties of weakly interacting particles. Comparing the cooling rates of these stars with the expected values from theoretical models allows us to search for additional sources of cooling due to the emission of axions, neutralinos, or neutrinos with magnetic dipole moment. In this work, we derive an upper bound to the neutrino magnetic dipole moment (?{sub ?}) using an estimate of the rate of period change of the pulsating DB white dwarf star PG 1351+489. We employ state-of-the-art evolutionary and pulsational codes which allow us to perform a detailed asteroseismological period fit based on fully DB white dwarf evolutionary sequences. Plasmon neutrino emission is the dominant cooling mechanism for this class of hot pulsating white dwarfs, and so it is the main contributor to the rate of change of period with time (Pidot) for the DBV class. Thus, the inclusion of an anomalous neutrino emission through a non-vanishing magnetic dipole moment in these sequences notably influences the evolutionary timescales, and also the expected pulsational properties of the DBV stars. By comparing the theoretical Pidot value with the rate of change of period with time of PG 1351+489, we assess the possible existence of additional cooling by neutrinos with magnetic dipole moment. Our models suggest the existence of some additional cooling in this pulsating DB white dwarf, consistent with a non-zero magnetic dipole moment with an upper limit of ?{sub ?} ?< 10{sup -11} ?{sub B}. This bound is somewhat less restrictive than, but still compatible with, other limits inferred from the white dwarf luminosity function or from the color-magnitude diagram of the Globular cluster M5. Further improvements of the measurement of the rate of period change of the dominant pulsation mode of PG 1351+489 will be necessary to confirm our bound.

  1. White dwarfs as physics laboratories: the case of axions

    E-Print Network [OSTI]

    J. Isern; L. Althaus; S. Catalan; A. Corsico; E. Garcia-Berro; M. Salaris; S. Torres

    2012-04-16

    White dwarfs are almost completely degenerate objects that cannot obtain energy from thermonuclear sources, so their evolution is just a gravothermal cooling process. Recent improvements in the accuracy and precision of the luminosity function and in pulsational data of variable white dwarfs suggest that they are cooling faster than expected from conventional theory. In this contribution we show that the inclusion of an additional cooling term due to axions able to interact with electrons with a coupling constant g_ae ~(2-7)x10^{-13} allows to fit better the observations.

  2. White paper updating conclusions of 1998 ILAW performance assessment

    SciTech Connect (OSTI)

    MANN, F.M.

    2000-05-11

    The purpose of this document is to provide a comparison of the estimated immobilized low-activity waste (LAW) disposal system performance against established performance objectives using the beat estimates for parameters and models to describe the system. The principal advances in knowledge since the last performance assessment (known as the 1998 ILAW PA [Mann 1998a]) have been in site specific information and data on the waste form performance for BNFL, Inc. relevant glass formulations. The white paper also estimates the maximum release rates for technetium and other key radionuclides and chemicals from the waste form. Finally, this white paper provides limited information on the impact of changes in waste form loading.

  3. GRMHD formulation of highly super-Chandrasekhar rotating magnetised white dwarfs: Stable configurations of non-spherical white dwarfs

    E-Print Network [OSTI]

    Subramanian, Sathyawageeswar

    2015-01-01

    Here we extend the exploration of significantly super-Chandrasekhar magnetised white dwarfs by numerically computing axisymmetric stationary equilibria of differentially rotating magnetised polytropic compact stars in general relativity (GR), within the ideal magnetohydrodynamic regime. We use a general relativistic magnetohydrodynamic (GRMHD) framework that describes rotating and magnetised axisymmetric white dwarfs, choosing appropriate rotation laws and magnetic field profiles (toroidal and poloidal). The numerical procedure for finding solutions in this framework uses the 3+1 formalism of numerical relativity, implemented in the open source XNS code. We construct equilibrium sequences by varying different physical quantities in turn, and highlight the plausible existence of super-Chandrasekhar white dwarfs, with masses in the range of 2-3 solar mass, with central (deep interior) magnetic fields of the order of $10^{14}$ Gauss and differential rotation with surface time periods of about 1-10 seconds. We no...

  4. The Muzzi marsh: a case study and analysis of wetland restoration decision-making in San Francisco Bay 

    E-Print Network [OSTI]

    Brah, William Joseph

    1982-01-01

    were subject to the requirements of the Act. As to these, the wildlife agen- cies can recommend that the requested permit be denied or that app1icants develop mitigation plans to prevent or lessen damage to wetland habitat and to improve habitat... have learned that they have a better chance in securing approval of a permit if they propose mitigation or restoration programs. Others coun- ter that it is not fair to impose extensive restoration requirements on permit applicants when...

  5. The ages of very cool hydrogen-rich white dwarfs

    E-Print Network [OSTI]

    M. Salaris; E. Garcia-Berro; M. Hernanz; J. Isern; D. Saumon

    2000-07-04

    The evolution of white dwarfs is essentially a cooling process that depends primarily on the energy stored in their degenerate cores and on the transparency of their envelopes. In this paper we compute accurate cooling sequences for carbon-oxygen white dwarfs with hydrogen dominated atmospheres for the full range of masses of interest. For this purpose we use the most accurate available physical inputs for both the equation of state and opacities of the envelope and for the thermodynamic quantities of the degenerate core. We also investigate the role of the latent heat in the computed cooling sequences. We present separately cooling sequences in which the effects of phase separation of the carbon-oxygen binary mixture upon crystallization have been neglected, and the delay introduced in the cooling times when this mechanism is properly taken into account, in order to compare our results with other published cooling sequences which do not include a treatment of this phenomenon. We find that the cooling ages of very cool white dwarfs with pure hydrogen atmospheres have been systematically underestimated by roughly 1.5 Gyr at log(L/Lo)=-4.5 for an otherwise typical 0.6 Mo white dwarf, when phase separation is neglected. If phase separation of the binary mixture is included then the cooling ages are further increased by roughly 10%. Cooling tracks and cooling isochrones in several color-magnitude diagrams are presented as well.

  6. Stay-Clean and Durable White Elastomeric Roof Coatings (ERCs...

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

    Dow Chemical developed high-performing white ERCs City Savings (m 2 year) Athens 2.8 Lyon 1.1 Istanbul 1.9 Dubai 2.7 Riyadh 2.2 In durability studies, Dow's ERCs adhered well to...

  7. Solar Radio Bursts and Space Weather Stephen M. White

    E-Print Network [OSTI]

    White, Stephen

    advantage of exceptionally clean radio spectra of such bursts acquired with the Green Bank Solar Radio Burst­effective disturbances probably originate: the layers where energy is released in solar flares, where energetic particlesSolar Radio Bursts and Space Weather Stephen M. White Dept. of Astronomy, University of Maryland

  8. White Blood Cell and Platelet Aggregation in Stenoses: A

    E-Print Network [OSTI]

    Petta, Jason

    always forms · Force = 4e-11 N (Bell, 1978) · Mass = 4.08e-13 kg (Shalak and Chien, 1987) ­ 1070 kg/m3White Blood Cell and Platelet Aggregation in Stenoses: A Computational Model Stephen H. Dao, Zhanke affect flow · Predict aggregation patterns and rates ­ Computer simulations · Model thrombosis mechanism

  9. The frequency of planetary debris around young white dwarfs

    E-Print Network [OSTI]

    Koester, Detlev; Farihi, Jay

    2014-01-01

    (Abridged) We present the results of the first unbiased survey for metal pollution among H-atmosphere (DA) white dwarfs with cooling ages of 20-200 Myr and 17000K 0.8 Msun is found to be currently accreting, which suggests a large fraction are double-degenerate mergers, and the merger discs do not commonly reform large planetesimals or otherwise pollute the remnant. We reconfirm our previous finding that two white dwarf Hyads are currently accreting rocky debris. At least 27%, and possibly up to ~50%, of all white dwarfs with cooling ages 20-200 Myr are accreting planetary debris. At Teff > 23000K, the luminosity of white dwarfs is likely sufficient to vaporize circumstellar dust, and hence no stars with strong metal-pollution are found. However, planetesimal disruption events should occur in this cooling age and Teff range as well, and likely result in short phases of high mass transfer rates. It appears that the formation of rocky planetary material is common around 2-3 Msun late B- and A-type stars.

  10. A White Book on Faculty of Information Technology, Mathematics and

    E-Print Network [OSTI]

    aspects have been the injection of new and green energy resources into the grid (such as wind, solar a definition inspired by IEC and SmartGrids ETP: "A Smart Grid is an electric power network that utilizes twoA White Book on Smart Grid Faculty of Information Technology, Mathematics and Electrical

  11. Future Grid: The Environment Future Grid Initiative White Paper

    E-Print Network [OSTI]

    Future Grid: The Environment Future Grid Initiative White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Future Grid: The Environment Prepared for the Project "The Future Grid to Enable Sustainable Energy Systems" Funded by the U

  12. White-Nose Syndrome (WNS) has caused catastrophic declines in

    E-Print Network [OSTI]

    White-Nose Syndrome (WNS) has caused catastrophic declines in hibernating bats in the United States Death Rate The impact of WNS is frightening! Up to 99% of bats in some WNS-infected populations die closures. Check with your state and federal agencies or a local chapter of the National Speleological

  13. White Papers Submitted to the Technology Innovation Program

    E-Print Network [OSTI]

    Magee, Joseph W.

    and complex systems, energy, ensuring future water supply, healthcare, manufacturing, nanomaterials competition planning process. This analysis provides some insight into the range of input TIP received through of the 590 authors and contributors of the first 275 white papers. Nonprofit, 54 Large Company, 36 Individual

  14. White Paper Conflicts of Interest and Academic Industry Relationships

    E-Print Network [OSTI]

    Mootha, Vamsi K.

    White Paper Conflicts of Interest and Academic Industry Relationships July 15, 2009 Jeffrey S are the HMS faculty and why might they want to interact with industry? The faculty of HMS are approximately 10 and expertise that can be deployed to enhance therapeutic discovery and development. Collaboration with industry

  15. Technology-Enabled Medicine Bryan White, Ph.D.

    E-Print Network [OSTI]

    Lee, Tonghun

    Technology-Enabled Medicine Bryan White, Ph.D. Director, Mayo-Illinois Alliance Clinic to develop new technologies that will transform the prac=ce of medicine:on-based medicine and point-of-care diagnos:cs Discovering new technologies and bringing them

  16. Carbon nanotube composites for photovoltaic devices White Paper

    E-Print Network [OSTI]

    Gruner, George

    in recent years. In particular interest are so called third generation devices, that involve polymersCarbon nanotube composites for photovoltaic devices White Paper Summary In a collaborative effort into charge separated sates. Preamble Novel photovoltaic and solar cell devices have gained prominence

  17. Organic Electronics and Photovoltaics CopyrightDaveWhite2008

    E-Print Network [OSTI]

    ENERGY Organic Electronics and Photovoltaics Objective CopyrightDaveWhite2008 Organic electronics and photovoltaic technology are reaching critical mass with the establishment of a U.S. consortium and the recent an inte- grated suite of measurement methods to tie the electrical and photovoltaic performance of organic

  18. Water Resources People and Issues GILBERT F. WHITE

    E-Print Network [OSTI]

    Ponce, V. Miguel

    natural resources and water and land. When I encountered a group in the geography departmentWater Resources People and Issues GILBERT F. WHITE by Martin Reuss #12;Interview with Gilbert F ever think about going anywhere else? 3 #12;Water Resources People and Issues A: No. We were all

  19. Roadmap and Technical White Papers for 21st Century Truck Partnership...

    Energy Savers [EERE]

    Roadmap and Technical White Papers for 21st Century Truck Partnership Roadmap and Technical White Papers for 21st Century Truck Partnership Roadmap document for 21st Century Truck...

  20. Ecological Modelling 190 (2006) 171189 Local spatial modeling of white-tailed deer distribution

    E-Print Network [OSTI]

    2006-01-01

    spatial modeling techniques. We used one local modeling approach, geographically weighted regression (GWR rights reserved. Keywords: Geographically weighted regression; Ordinary linear-squares regression; White regression (White et al., 2004), logistic multiple regression (Pearce, 1987; Augustin et al., 1996

  1. Barriers to CHP with Renewable Portfolio Standards, Draft White Paper, September 2007

    Office of Energy Efficiency and Renewable Energy (EERE)

    A draft white paper discussing the barriers to combine heat and power (CHP) with renewable portfolio standards

  2. THE HYPERCP DATA ACQUISITION D. M. Kaplan 2 , W. R. Luebke, A. Chakravorty, C. G. White, S. L. White

    E-Print Network [OSTI]

    Fermilab Experiment E871

    THE HYPERCP DATA ACQUISITION SYSTEM 1 D. M. Kaplan 2 , W. R. Luebke, A. Chakravorty, C. G. White, S 28--29, 1997. 2 E­mail: kaplan@fnal.gov 3 i.e., occurring via meson­antimeson mixing. 1 #12; Hyperon

  3. The Feynman integrand as a white noise distribution beyond perturbation theory

    SciTech Connect (OSTI)

    Grothaus, Martin; Vogel, Anna

    2008-06-18

    In this note the concepts of path integrals and techniques how to construct them are presented. Here we concentrate on a White Noise approach. Combining White Noise techniques with a generalized time-dependent Doss' formula Feynman integrands are constructed as white noise distributions beyond perturbation theory.

  4. THE WHITE MOUNTAIN POLARIMETER TELESCOPE AND AN UPPER LIMIT ON COSMIC MICROWAVE BACKGROUND POLARIZATION

    E-Print Network [OSTI]

    Timbie, Peter

    THE WHITE MOUNTAIN POLARIMETER TELESCOPE AND AN UPPER LIMIT ON COSMIC MICROWAVE BACKGROUND. Wuensche5 Received 2007 June 10; accepted 2008 March 16 ABSTRACT The White Mountain Polarimeter (WMPol microwave background. WMPol is located at an altitude of 3880 m on a plateau in the White Mountains

  5. Revisiting the BGE Attack on a White-Box AES Implementation

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    . White-box cryptography aims to protect the secret key of a cipher in an environment in which-box implementation of AES [5]. White-box cryptography aims to protect the confidentiality of the secret key device, or a set-top box. #12;In 2004, Billet et al. [3] presented an attack on the white-box AES

  6. A Grand Challenge for the Future Grid A PSERC White Paper

    E-Print Network [OSTI]

    the white paper, the lead authors consulted with industry and university PSERC members. Feedback on an earlyA Grand Challenge for the Future Grid A PSERC White Paper Power Systems Engineering Research Center A White Paper from the Power Systems Engineering Research Center Lead Authors Chris DeMarco, University

  7. Technical background information for the environmental and safety report, Volume 4: White Oak Lake and Dam

    SciTech Connect (OSTI)

    Oakes, T.W.; Kelly, B.A.; Ohnesorge, W.F.; Eldridge, J.S.; Bird, J.C.; Shank, K.E.; Tsakeres, F.S.

    1982-03-01

    This report has been prepared to provide background information on White Oak Lake for the Oak Ridge National Laboratory Environmental and Safety Report. The paper presents the history of White Oak Dam and Lake and describes the hydrological conditions of the White Oak Creek watershed. Past and present sediment and water data are included; pathway analyses are described in detail.

  8. High Efficiency White Organic Light Emission Device Based On New Orange Phosphorescence Material

    E-Print Network [OSTI]

    High Efficiency White Organic Light Emission Device Based On New Orange Phosphorescence Material University, Kowloon, Hong Kong ABSTRACT White light emitting device based on a new orange phosphorescent fabricated. The white OLED consists of it and a blue phosphorescent material FIrPic (iridum-bis(4

  9. Multiple phase estimation for arbitrary pure states under white noise

    E-Print Network [OSTI]

    Yao Yao; Li Ge; Xing Xiao; Xiaoguang Wang; C. P. Sun

    2014-09-08

    In any realistic quantum metrology scenarios, the ultimate precision in the estimation of parameters is limited not only by the so-called Heisenberg scaling, but also the environmental noise encountered by the underlying system. In the context of quantum estimation theory, it is of great significance to carefully evaluate the impact of a specific type of noise on the corresponding quantum Fisher information (QFI) or quantum Fisher information matrix (QFIM). Here we investigate the multiple phase estimation problem for a natural parametrization of arbitrary pure states under white noise. We obtain the explicit expression of the symmetric logarithmic derivative (SLD) and hence the analytical formula of QFIM. Moreover, the attainability of the quantum Cram\\'{e}r-Rao bound (QCRB) is confirmed by the commutability of SLDs and the optimal estimators are elucidated for the experimental purpose. These findings generalize previously known partial results and highlight the role of white noise in quantum metrology.

  10. Spectral modeling of gaseous metal disks around DAZ white dwarfs

    E-Print Network [OSTI]

    K. Werner; T. Nagel; T. Rauch

    2008-09-30

    We report on our attempt for the first non-LTE modeling of gaseous metal disks around single DAZ white dwarfs recently discovered by Gaensicke et al. and thought to originate from a disrupted asteroid. We assume a Keplerian rotating viscous disk ring composed of calcium and hydrogen and compute the detailed vertical structure and emergent spectrum. We find that the observed infrared CaII emission triplet can be modeled with a hydrogen-deficient gas ring located at R=1.2 R_sun, inside of the tidal disruption radius, with Teff about 6000 K and a low surface mass density of about 0.3 g/cm**2. A disk having this density and reaching from the central white dwarf out to R=1.2 R_sun would have a total mass of 7 10**21 g, corresponding to an asteroid with about 160 km diameter.

  11. The Properties of Matter in White Dwarfs and Neutron Stars

    E-Print Network [OSTI]

    Shmuel Balberg; Stuart L. Shapiro

    2000-04-24

    White dwarfs and neutron stars are stellar objects with masses comparable to that of our sun. However, as the endpoint stages of stellar evolution, these objects do not sustain any thermonuclear burning and therefore can no longer support the gravitational load of their own mass by generating thermal pressure. Rather, matter in their interiors is compressed to much higher densities than commonly found in normal stars, and pressure is created by degenerate fermion kinetic energy and particle interactions. As a result, white dwarfs and neutron stars offer unique cosmic laboratories for studying matter at very high densities. In this review we discuss the basic properties of condensed matter at extreme densities and summarize the extent to which these properties can be examined by observations of compact objects.

  12. Radionuclide concentrations in white sturgeon from the Columbia River

    SciTech Connect (OSTI)

    Dauble, D.D.; Price, K.R.; Poston, T.M.

    1992-09-01

    Although radioactive releases from the US Department of Energy`s Hanford Site have been monitored in the environment since the reactors began operating in 1945, recent information regarding historical releases of radionuclides has led to renewed interest in estimating human exposure to radionuclides at Hanford. Knowledge of the fate of radionuclides in some fish species may be important because of the potential for food-chain transfer to humans. White sturgeon (Acipenser transmontanus) were selected for study because they are long-lived, reside year-round in the Hanford Reach, are benthic, and are an important commercial and sport species in the Columbia River. They also have a greater potential for accumulating persistent radionuclides than shorter-lived species with pelagic and/or anadromous life histories. The purpose of our study was to summarize data on historical concentrations of industrial radionuclides in white sturgeon and to collect additional data on current body burdens in the Columbia River.

  13. GIS and Digital Geospatial Data at TAMU Libraries - White Paper 

    E-Print Network [OSTI]

    Weimer, Kathy

    2008-08-22

    Geospatial Data at TAMU Libraries White Paper May 2005 Kathy Weimer Coordinator of Maps/GIS Background of GIS in Libraries GIS, geographical information systems, is an integrated system of computer hardware, software, data and trained people.../software and data management issues related to GIS implementation. Foremost among these papers are ARL’s Spec Kit 219 (Transforming Libraries, Issues and Innovations in Geographic Information Systems, 1997) and Spec Kit 238 (The ARL Geographic Information...

  14. White LED Benchmark of 65 Lumens Per Watt Achieved

    Broader source: Energy.gov [DOE]

    Novel chip design and the balance of multiple interrelated design parameters have enabled Cree, Inc.'s Santa Barbara Technology Center to demonstrate white LEDs with efficacies greater than 65 lumens per watt at 350 mA. The results are particularly significant because they were achieved with a pre-production prototype chip using the same package used in Cree's commercially available XLamp® 7090 high power LED, rather than a laboratory device.

  15. Degree of Whiteness and Maturity Among World Cotton Cultivars 

    E-Print Network [OSTI]

    Gregory, Kendra

    2012-07-16

    of spectrophotometers; while they demonstrated that inter-instrument agreement is possible, the use of glass between the cotton fibers and the machines diminished that 7 7 agreement (Rodgers et al., 2006; Shofner et al., 2006). The AMS system is a 2-D color.... Wayne Smith Eric F. Hequet Committee Member, J. Tom Cothren Head of Department, David D. Baltensperger May 2012 Major Subject: Plant Breeding iii iii ABSTRACT Degree of Whiteness and Maturity among World Cotton Cultivars. (May 2012...

  16. Efficacy of 45 lm/W Achieved in White OLED

    Broader source: Energy.gov [DOE]

    Universal Display Corporation (UDC) successfully demonstrated an all phosphorescent white organic light emitting diode (WOLED™) with a power efficacy of 45 lm/W at 1,000 cd/m2. This high-efficacy device was enabled by lowering the device operating voltage, increasing the outcoupling efficiency to ~40% from ~20%, and by incorporating highly efficient phosphorescent emitters that are capable of converting nearly all current passing through a WOLED into light.

  17. Constraining the neutrino magnetic dipole moment from white dwarf pulsations

    E-Print Network [OSTI]

    Córsico, Alejandro H; Bertolami, Marcelo M Miller; Kepler, S O; García-Berro, Enrique

    2014-01-01

    Pulsating white dwarf stars can be used as astrophysical laboratories to constrain the properties of weakly interacting particles. Comparing the cooling rates of these stars with the expected values from theoretical models allows us to search for additional sources of cooling due to the emission of axions, neutralinos, or neutrinos with magnetic dipole moment. In this work, we derive an upper bound to the neutrino magnetic dipole moment using an estimate of the rate of period change of the pulsating DB white dwarf star PG 1351+489. By comparing the theoretical rate of change of period expected for this star with the rate of change of period with time of PG 1351+489, we assess the possible existence of additional cooling by neutrinos with magnetic dipole moment. Our models suggest the existence of some additional cooling in this pulsating DB white dwarf, consistent with a non-zero magnetic dipole moment. Our upper limit for the neutrino magnetic dipole moment is somewhat less restrictive than, but still compat...

  18. Optimizing white light luminescence in Dy{sup 3+}-doped Lu{sub 3}Ga{sub 5}O{sub 12} nano-garnets

    SciTech Connect (OSTI)

    Haritha, P.; Linganna, K.; Venkatramu, V.; Martín, I. R.; Monteseguro, V.; Rodríguez-Mendoza, U. R.; Babu, P.; León-Luis, S. F.; Jayasankar, C. K.; Lavín, V.

    2014-11-07

    Trivalent dysprosium-doped Lu{sub 3}Ga{sub 5}O{sub 12} nano-garnets have been prepared by sol-gel method and characterized by X-ray powder diffraction, high-resolution transmission electron microscopy, dynamic light scattering, and laser excited spectroscopy. Under a cw 457?nm laser excitation, the white luminescence properties of Lu{sub 3}Ga{sub 5}O{sub 12} nano-garnets have been studied as a function of the optically active Dy{sup 3+} ion concentration and at low temperature. Decay curves for the {sup 4}F{sub 9/2} level of Dy{sup 3+} ion exhibit non-exponential nature for all the Dy{sup 3+} concentrations, which have been well-fitted to a generalized energy transfer model for a quadrupole-quadrupole interaction between Dy{sup 3+} ions without diffusion. From these data, a simple rate-equations model can be applied to predict that intense white luminescence could be obtained from 1.8?mol% Dy{sup 3+} ions-doped nano-garnets, which is in good agreement with experimental results. Chromaticity color coordinates and correlated color temperatures have been determined as a function of temperature and are found to be within the white light region for all Dy{sup 3+} concentrations. These results indicate that 2.0?mol% Dy{sup 3+} ions doped nano-garnet could be useful for white light emitting device applications.

  19. TOF SIMS analysis and generation of white photoluminescence from strontium silicate codoped with europium and terbium

    SciTech Connect (OSTI)

    Tshabalala, Modiehi A.; Swart, Hendrik C.; Ntwaeaborwa, Odireleng M., E-mail: ntwaeab@ufs.ac.za [Department of Physics, University of the Free State, P.O Box 339, Bloemfontein 9300 South Africa (South Africa)

    2014-03-15

    White light emitting terbium (Tb{sup 3+}) and europium (Eu{sup 3+}) codoped strontium silicate (Sr{sub 2}SiO{sub 4}) phosphors were prepared by a solid state reaction process. The structure, particle morphology, chemical composition, ion distribution, photoluminescence (PL), and decay characteristics of the phosphors were analyzed by x-ray diffraction (XRD), scanning electron microscopy (SEM), time-of-flight secondary ion mass spectrometry (TOF-SIMS), and PL spectroscopy, respectively. The XRD data showed that our Sr{sub 2}SiO{sub 4} composed of two phases, namely, ?-Sr{sub 2}SiO{sub 4} and ??-Sr{sub 2}SiO{sub 4}, and the ??-Sr{sub 2}SiO{sub 4} phase was more prominent than the ?-Sr{sub 2}SiO{sub 4} phase. The SEM micrographs showed that the particles were agglomerated together and they did not have definite shapes. All ions (i.e., negative and positive) present in our materials were identified by TOF-SIMS. In addition, the chemical imaging performed with the TOF-SIMS demonstrated how the individual ions including the dopants (Eu{sup 3+} and Tb{sup 3+}) were distributed in the host lattice. White photoluminescence was observed when the Sr{sub 2}SiO{sub 4}:Tb{sup 3+}, Eu{sup 3+} phosphor was excited at 239?nm using a monochromatized xenon lamp as the excitation source. The phosphor exhibited fast decay lifetimes implying that it is not a good candidate for long afterglow applications.

  20. Detached white-dwarf close-binary stars -- CV's extended family

    E-Print Network [OSTI]

    T. R. Marsh

    1999-06-07

    I review detached binaries consisting of white dwarfs with either other white dwarfs or low mass main-sequence stars in tight orbits around them. Orbital periods have been measured for 15 white dwarf/white dwarf systems and 22 white dwarf/M dwarf systems. While small compared to the number of periods known for CVs (>300), I argue that each variety of detached system has a space density an order of magnitude higher that of CVs. While theory matches the observed distribution of orbital periods of the white dwarf/white dwarf binaries, it predicts white dwarfs of much lower mass than observed. Amongst both types of binary are clear examples of helium core white dwarfs, as opposed to the usual CO composition; similar systems must exist amongst the CVs. White dwarf/M dwarf binaries suffer from selection effects which diminish the numbers seen at long and short periods. They are useful for the study of irradiation; I discuss evidence to suggest that Balmer emission is broadened by optical depth effects to an extent which limits its usefulness for imaging the secondary stars in CVs.

  1. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12

    E-Print Network [OSTI]

    Kepler, S O; Koester, Detlev; Ourique, Gustavo; Romero, Alejandra Daniela; Reindl, Nicole; Kleinman, Scot J; Eisenstein, Daniel J; Valois, A Dean M; Amaral, Larissa A

    2015-01-01

    We report the discovery of 6576 new spectroscopically confirmed white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. We obtain Teff, log g and mass for hydrogen atmosphere white dwarf stars (DAs) and helium atmosphere white dwarf stars (DBs), estimate the calcium/helium abundances for the white dwarf stars with metallic lines (DZs) and carbon/helium for carbon dominated spectra DQs. We found one central star of a planetary nebula, one ultra-compact helium binary (AM CVn), one oxygen line dominated white dwarf, 15 hot DO/PG1159s, 12 new cataclysmic variables, 36 magnetic white dwarf stars, 54 DQs, 115 helium dominated white dwarfs, 148 white dwarf+main sequence star binaries, 236 metal polluted white dwarfs, 300 continuum spectra DCs, 230 hot subdwarfs, 2936 new hydrogen dominated white dwarf stars, and 2675 cool hydrogen dominated subdwarf stars. We calculate the mass distribution of all 5883 DAs with S/N>15 in DR12, including the ones in DR7 and DR10, with an average S/N=26, correc...

  2. Renewable Energy Opportunities at White Sands Missile Range, New Mexico

    SciTech Connect (OSTI)

    Chvala, William D.; Solana, Amy E.; States, Jennifer C.; Warwick, William M.; Weimar, Mark R.; Dixon, Douglas R.

    2008-09-01

    The document provides an overview of renewable resource potential at White Sands Missile Range (WSMR) based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations. The effort was funded by the U.S. Army Installation Management Command (IMCOM) as follow-on to the 2005 DoD Renewable Energy Assessment. This effort focuses on grid-connected generation of electricity from renewable energy sources and also ground source heat pumps (GSHPs) for heating and cooling buildings, as directed by IMCOM.

  3. White Noise, Black-body radiation and Secure communication

    E-Print Network [OSTI]

    C. Tannous; J. Langlois

    2015-06-05

    Nyquist White noise derivation based on blackbody radiation interacting with electrons in a transmission line is revisited and is shown to possibly pave the way toward secure noise-based communication systems. Encrypting a message for secure transmission might be performed by combining it with controlled noise as performed in Spread-Spectrum communication that are presently used in Telecommunication systems. Quantum communication using entanglement is another route for secure communications as demonstrated by several important experiments. Classical and Quantum noise are compared and discussed as a major constituent of secure communication.

  4. Thermonuclear Explosions of Chandrasekhar-Mass White Dwarfs

    E-Print Network [OSTI]

    W. Hillebrandt; M. Reinecke; J. C. Niemeyer

    2000-05-16

    We present a new way of modeling turbulent thermonuclear deflagration fronts in Chandrasekhar-mass white dwarfs, consisting of carbon and oxygen, undergoing a type Ia supernova explosion. Our approach is a front capturing/tracking hybrid scheme, based on a level set method, which treats the front as a mathematical discontinuity and allows for full coupling between the front geometry and the flow field. First results of the method applied to the problem of type Ia supernovae are discussed. It will be shown that even in 2-D and even with a physically motivated sub-grid model numerically ``converged'' results are difficult to obtain.

  5. World Record White OLED Performance Exceeds 100 lm/W

    Broader source: Energy.gov [DOE]

    Universal Display Corporation (UDC) has successfully demonstrated a record-breaking white organic light-emitting diode (WOLED) with a power efficacy of 102 lm/W at 1000 cd/m2 using its proprietary, high-efficiency phosphorescent OLED technology. This achievement represents a significant milestone for OLED technology, demonstrating performance that surpasses the power efficacy of incandescent bulbs with less than 15 lm/W and fluorescent lamps at 60-90 lm/W. Funded in part by DOE, UDC's achievement is a major step toward DOE's roadmap goal of a 150 lm/W commercial OLED light source by 2015.

  6. City of White Mountain, Alaska (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar EnergyLawler, IowaScottsboro,KansasKansas (UtilityCity,Westby,City of White

  7. White Arrow Hot Springs Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThinWarsaw,What Is a Small Community WindWhere is DBWind FarmWhite

  8. White Licks Hot Springs Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThinWarsaw,What Is a Small Community WindWhere is DBWindWhite Licks

  9. White Oak Wind Energy Center | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThinWarsaw,What Is a Small Community WindWhere is DBWindWhiteWind

  10. White Paper on DOE-HEP Accelerator Modeling Science Activities

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubicthe FOIA? The FOIA,Department ofWhite Paper on

  11. White brings talent, energy to PPPL's small business program | Princeton

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubicthe FOIA? The FOIA,Department ofWhite Paper

  12. WHITE HOUSE COUNCIL ON WOMEN AND GIRLS RECENT AGENCY ACCOMPLISHMENTS

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950Department ofIntroduction ofWHITE HOUSE COUNCIL ON

  13. White House Champions of Change Recognizes Solar Innovator | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950DepartmentWave EnergyElectricity &Energy White

  14. EA-1869: Final Environmental Assessment and Finding of No Significant...

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

    General Motors LLC, Electric Drive Vehicle Battery and Component Manufacturing Initiative White Marsh, Maryland (September 2011) DOE prepared this Supplemental EA to evaluate the...

  15. Novel 3-D Printed Inverters for Electric Vehicles Can Improve...

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

    and Efficiency 3D Printed and Semiconductor Technology 'Mash-up' The General Motors Baltimore Operations facility at White Marsh is producing electric motors for the Chevrolet...

  16. Red-white and blue baby: a case of phacomatosis pigmentovascularis type V

    E-Print Network [OSTI]

    Byrom, Lisa; Surjana, Devita; Yoong, Corinne; Zappala, Tania

    2015-01-01

    vignette Red-white and blue baby: a case of phacomatosisextensive greyish-blue patches (dermal melanocytosis)addition, marble-like reddish- blue patches consistent with

  17. “My Feelings Are Not About You”: Personal Experience as a Move of Whiteness

    E-Print Network [OSTI]

    DiAngelo, Robin J; Allen, David

    2006-01-01

    Statistics. (2002). Van Dijk, T.A. (1993). Analyzing racismDyer, 1997; Sleeter, 1993; Van Dijk, 1993) use whiteness toof participants (Van Dijk, 1993). In differentiating

  18. Age, movements, and feeding ecology of northwest Atlantic white sharks estimated from ecogeochemical profiles in vertebrae

    E-Print Network [OSTI]

    Hamady, Li Ling

    2014-01-01

    White sharks (Carcharodon carcharias) are highly migratory, ecologically important, vulnerable, and understudied marine predators. Ecogeochemistry, which takes advantage of natural variations in chemical signatures recorded ...

  19. White Paper on Energy Efficiency Status of Energy-Using Products in China (2011)

    E-Print Network [OSTI]

    Zhou, Nan

    2013-01-01

    Kai. Motor System Energy Efficiency Practical Guide [M].products in China – Energy efficiency standards and labelingWhite Paper – Energy Efficiency Status of Energy- Using

  20. Landau quantization and mass-radius relation of magnetized White Dwarfs in general relativity

    E-Print Network [OSTI]

    Mukhopadhyay, Somnath; Basu, D N

    2015-01-01

    Recently, several white dwarfs have been proposed with masses significantly above the Chandrasekhar limit, known as Super-Chandrasekhar White Dwarfs, to account for the overluminous Type Ia supernovae. In the present work, Equation of State of a completely degenerate relativistic electron gas in magnetic field based on Landau quantization of charged particles in a magnetic field is developed. The mass-radius relations for magnetized White Dwarfs are obtained by solving the Tolman-Oppenheimer-Volkoff equations. The effects of the magnetic energy density and pressure contributed by a density-dependent magnetic field are treated properly to find the stability configurations of realistic magnetic White Dwarf stars.

  1. Retinal arteriolar geometry is associated with cerebral white matter hyperintensities on MRI 

    E-Print Network [OSTI]

    Doubal, F.N.; de Haan, R; MacGillivray, T.J.; Cohn-Hokke, P.; Dhillon, B.; Dennis, M.S.; Wardlaw, J.M.

    Background. Cerebral small vessel disease (lacunar stroke and cerebral white matter hyperintensities) is caused by vessel abnormalities of unknown aetiology. Retinal vessels show developmental and pathophysiological ...

  2. Magnetic white dwarfs in the Early Data Release of the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    B. T. Gaensicke; F. Euchner; S. Jordan

    2002-08-26

    We have identified 7 new magnetic DA white dwarfs in the Early Data Release of the Sloan Digital Sky Survey. Our selection strategy has also recovered all the previously known magnetic white dwarfs contained in the SDSS EDR, KUV03292+0035 and HE0330-0002. Analysing the SDSS fibre spectroscopy of the magnetic DA white dwarfs with our state-of-the-art model spectra, we find dipole field strengths 1.5<=B_d<=63MG and effective temperatures 8500<=Teff<=39000K. As a conservative estimate, we expect that the complete SDSS will increase the number of known magnetic white dwarfs by a factor 3.

  3. White Oak Creek Embayment site characterization and contaminant screening analysis

    SciTech Connect (OSTI)

    Blaylock, B.G.; Ford, C.J.; Frank, M.L.; Hoffman, F.O.; Hook, L.A.

    1993-01-01

    Analyses of sediment samples collected near the mouth of White Oak Creek during the summer of 1990 revealed [sup 137]Cs concentrations [> 10[sup 6] Bq/kg dry wt (> 10[sup 4] pCi/g dry wt)] near the sediment surface. Available evidence indicates that these relatively high concentrations of [sup 137]Cs now at the sediment surface were released from White Oak Dam in the mid-1950s and had accumulated at depositionalsites in the embayment. These accumulated sediments are being eroded and transported downstream primarily during winter low-water levels by flood events and by a combination of normal downstream flow and the water turbulence created by the release of water from Melton Hill Dam during hydropower generation cycles. This report provides a more thorough characterization of the extent of contamination in WOCE than was previously available. Environmental samples collected from WOCE were analyzed for organic, inorganic, and radiological contaminants in fish, water, and sediment. These results were used to conduct a human health effects screening analysis. Walkover radiation surveys conducted inside the fenced area surrounding the WOCE at summer-pool (741 ft MSL) and at winter-pool (733 ft MSL) level, indicated a maximum exposure rate of 3 mR h[sup 1] 1 m above the soil surface.

  4. LIMB-DARKENING COEFFICIENTS FOR ECLIPSING WHITE DWARFS

    SciTech Connect (OSTI)

    Gianninas, A.; Strickland, B. D.; Kilic, Mukremin [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks St., Norman, OK 73019 (United States)] [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks St., Norman, OK 73019 (United States); Bergeron, P., E-mail: alexg@nhn.ou.edu, E-mail: benstrickland@ou.edu, E-mail: kilic@ou.edu, E-mail: bergeron@astro.umontreal.ca [Departement de Physique, Universite de Montreal, C.P. 6128, Succ. Centre-Ville, Montreal, Quebec H3C 3J7 (Canada)

    2013-03-20

    We present extensive calculations of linear and nonlinear limb-darkening coefficients as well as complete intensity profiles appropriate for modeling the light-curves of eclipsing white dwarfs. We compute limb-darkening coefficients in the Johnson-Kron-Cousins UBVRI photometric system as well as the Large Synoptic Survey Telescope (LSST) ugrizy system using the most up to date model atmospheres available. In all, we provide the coefficients for seven different limb-darkening laws. We describe the variations of these coefficients as a function of the atmospheric parameters, including the effects of convection at low effective temperatures. Finally, we discuss the importance of having readily available limb-darkening coefficients in the context of present and future photometric surveys like the LSST, Palomar Transient Factory, and the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS). The LSST, for example, may find {approx}10{sup 5} eclipsing white dwarfs. The limb-darkening calculations presented here will be an essential part of the detailed analysis of all of these systems.

  5. NOPR Marsh | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties -Department of EnergyNEW1for Acquisition andAREVAExelon

  6. Assessing the Performance of 5mm White LED Light Sources for Developing-Country Applications

    E-Print Network [OSTI]

    Mills, Evan

    2007-01-01

    lamp. Off-grid lighting products using the poorer LEDs wouldLED products encountered in the market by firms designing and assembling complete lightingLED) light sources have recently attained levels of efficiency and cost that allow them to compete with fluorescent lighting

  7. A developmental study of the structural integrity of white matter in autism

    E-Print Network [OSTI]

    A developmental study of the structural integrity of white matter in autism Timothy A. Keller in Autism (CPEA) Grant HD35469 from the National Institute of Child Health and Human Development. Received in the organization of white matter in a large sample of male participants with autism and controls between the ages

  8. Tuning the correlated color temperature of white LED with a guest-host liquid crystal

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Tuning the correlated color temperature of white LED with a guest-host liquid crystal Haiwei Chen the molecular reorientation of dichroic dyes, the power ratio of the transmitted blue and red lights. P. Schuurmans, and M. D. Pashley, "Red, green, and blue LEDs for white light illumination," IEEE J

  9. TRACE and YOHKOH Observations of a White Light Flare Thomas R. Metcalf1

    E-Print Network [OSTI]

    Metcalf, Thomas R.

    . Hudson 2 , and Dana W. Longcope3 ABSTRACT We present observations of a large solar white light flare at 400 km s-1 . This is evidence in favor of particle acceleration models which energize the electrons), are typically the most energetic of solar flares. "White light" refers to continuum emission in excess

  10. Length: 4-15 mm Larvae (maggots): Creamy-white to green or

    E-Print Network [OSTI]

    Isaacs, Rufus

    Hover fly Syrphidae Length: 4-15 mm Larvae (maggots): Creamy-white to green or brown. Worm flies" or "flower flies"). Eggs: Small (1 mm in length). Cylindrical, white and laid singly on leaves or shoots near aphid colonies. 15 mm4 mm #12;Pupae: Green, tan or brown. Typically pear- shaped with a pair

  11. Evolution of resistance to white pine blister rust in high-elevation pines

    E-Print Network [OSTI]

    Tavener, Simon

    Evolution of resistance to white pine blister rust in high-elevation pines Mike Antolin, Stuart Station, USDA Forest Service Thanks: NSF award 0734267, USDA Forest Service Evolution of resistance ­ p. 1/74 #12;The basic ecology Evolution of resistance ­ p. 2/74 #12;High-elevation White Pines · Habitat: dry

  12. EA-1809: White Earth Nation Wind Energy Project II, Becker and Mahnomen Counties, MN

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to provide Congressionally Directed funds to the White Earth Nation to purchase and install up to four small mid-sized wind turbines at two sites near the towns of Waubun and Naytahwaush on the White Earth Reservation in Mahnomen County in western Minnesota .

  13. Ichthyophthirius multifiliis (White Spot) Infections in Ruth Francis-Floyd and Peggy Reed2

    E-Print Network [OSTI]

    Watson, Craig A.

    CIR920 Ichthyophthirius multifiliis (White Spot) Infections in Fish1 Ruth Francis-Floyd and Peggy that causes "Ich" or "white spot disease." This disease is a major prob- lem to aquarists and commercial fish producers world wide. Ichthyophthirius is an important disease of tropical fish, goldfish, and food fish

  14. WHOLE-STEM WATER RELTIONS IN WHITE OAK (QUERCUS ALBA L.) CAROL ELAINE GORANSON

    E-Print Network [OSTI]

    Teskey, Robert O.

    WHOLE-STEM WATER RELTIONS IN WHITE OAK (QUERCUS ALBA L.) by CAROL ELAINE GORANSON (Under and release water for transpiration, heartwood has never been considered to be a water storage reservoir. This research project investigated diurnal and seasonal changes in heartwood water content of white oak (Quercus

  15. Unusual Migration by a White-Tailed Deer Fawn in South Dakota

    E-Print Network [OSTI]

    migration by a flVe-day-old white- tailed deer (Odocoileus virginianus dacotensis) fawn in the central Black controlled (Ozoga and Verme 1986). Hawkins and Klimstra (1970) suggested that movements of adult does were purpose was to report an unusual migration pattern by an adult female white- #12;94 The Prairie Naturalist

  16. Nanocluster-based white-light-emitting material employing surface tuning

    DOE Patents [OSTI]

    Wilcoxon, Jess P. (Albuquerque, NM); Abrams, Billie L. (Albuquerque, NM); Thoma, Steven G. (Albuquerque, NM)

    2007-06-26

    A method for making a nanocrystal-based material capable of emitting light over a sufficiently broad spectral range to appear white. Surface-modifying ligands are used to shift and broaden the emission of semiconductor nanocrystals to produce nanoparticle-based materials that emit white light.

  17. White Paper for the Development of Code and Standards for Fusion

    E-Print Network [OSTI]

    White Paper for the Development of Code and Standards for Fusion Construction Activities Prepared;2 White Paper for the Development of Code and Standards for Fusion Construction Activities ABSTRACT for the construction of fusion-energy-related components such as vacuum vessels, cryostats and superconductor

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

    E-Print Network [OSTI]

    Electric Energy Challenges of the Future Future Grid Thrust Area 1 White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Thrust Area 1 White Paper Electric Energy Challenges of the Future Project Team Gerald T. Heydt, Kory Hedman Arizona

  19. European experiences with white certificate obligations: A critical review of existing evaluations

    E-Print Network [OSTI]

    Boyer, Edmond

    Policy Abstract White certificate obligations impose energy savings targets on energy companies and allow them to trade energy savings certificates. They can be seen as a means of internalizing energy. Keywords White certificate obligation, energy savings, energy efficiency gap, static efficiency, dynamic

  20. 1 Long-term volumetric eruption rates and magma budgets 2 Scott M. White

    E-Print Network [OSTI]

    Spera, Frank J.

    1 Long-term volumetric eruption rates and magma budgets 2 Scott M. White 3 Department of Geological compilation of 170 time-averaged volumetric volcanic output rates (Qe) is evaluated in terms 12 of composition 2006. 37 White, S. M., J. A. Crisp, and F. A. Spera (2006), Long-term volumetric eruption rates

  1. Spectrum flattening of white OLED with photonic crystal patterned capping layer

    E-Print Network [OSTI]

    Wai, Ping-kong Alexander

    OLED (ITE-WOLEDs) structure to simultaneously enhance the light extraction efficiency and to flattenSpectrum flattening of white OLED with photonic crystal patterned capping layer Feng Li, P. K. A to enhance the extraction and flatten the spectrum of white organic light-emitting diode. Spectrum

  2. 70 DA WHITE DWARFS IDENTIFIED IN LAMOST PILOT SURVEY

    SciTech Connect (OSTI)

    Zhao, J. K.; Luo, A. L.; Zhao, G. [Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Oswalt, T. D., E-mail: zjk@bao.ac.cn, E-mail: gzhao@bao.ac.cn, E-mail: lal@bao.ac.cn, E-mail: toswalt@fit.edu [Physics and Space Science Department, Florida Institute of Technology, Melbourne, FL 32901 (United States)

    2013-06-01

    We present a spectroscopically identified catalog of 70 DA white dwarfs (WDs) from the LAMOST pilot survey. Thirty-five are found to be new identifications after cross-correlation with the Eisenstein et al. and Villanova catalogs. The effective temperature and gravity of these WDs are estimated by Balmer lines fitting. Most of them are hot WDs. The cooling times and masses of these WDs are estimated by interpolation in theoretical evolution tracks. The peak of the mass distribution is found to be {approx}0.6 M {sub Sun }, which is consistent with prior work in the literature. The distances of these WDs are estimated using the method of synthetic spectral distances. All of these WDs are found to be in the Galactic disk from our analysis of space motions. Our sample supports the expectation that WDs with high mass are concentrated near the plane of the Galactic disk.

  3. White Oak Creek Watershed topographic map and related materials

    SciTech Connect (OSTI)

    Farrow, N.D.

    1981-04-01

    On March 22, 1978 a contract was let to Accu-Air Surveys, Inc., of Seymour, Indiana, to produce a topographic map of the White Oak Creek Watershed. Working from photography and ground control surveys, Accu-Air produced a map to ORNL's specifications. The map is in four sections (N.W., N.E., S.W., S.E.) at a scale of 1:2400. Contour intervals are 5 ft (1.5 m) with accented delineations every 25 ft (7.6 m). The scribe method was used for the finished map. Planimetric features, roads, major fence lines, drainage features, and tree lines are included. The ORNL grid is the primary coordinate system which is superimposed on the state plain coordinates.

  4. Dynamical Tides in Compact White Dwarf Binaries: Influence of Rotation

    E-Print Network [OSTI]

    Fuller, Jim

    2014-01-01

    Tidal interactions play an important role in the evolution and ultimate fate of compact white dwarf (WD) binaries. Not only do tides affect the pre-merger state (such as temperature and rotation rate) of the WDs, but they may also determine which systems merge and which undergo stable mass transfer. In this paper, we attempt to quantify the effects of rotation on tidal angular momentum transport in binary stars, with specific calculations applied to WD stellar models. We incorporate the effect of rotation using the traditional approximation, in which the dynamically excited gravity waves within the WDs are transformed into gravito-inertial Hough waves. The Coriolis force has only a minor effect on prograde gravity waves, and previous results predicting the tidal spin-up and heating of inspiraling WDs are not significantly modified. However, rotation strongly alters retrograde gravity waves and inertial waves, with important consequences for the tidal spin-down of accreting WDs. We identify new dynamical tidal...

  5. Thermal and Electric Conductivities of Coulomb Crystals in Neutron Stars and White Dwarfs

    E-Print Network [OSTI]

    D. A. Baiko; D. G. Yakovlev

    1996-04-28

    Thermal and electric conductivities are calculated for degenerate electrons scattered by phonons in a crystal made of atomic nuclei. The exact phonon spectrum and the Debye--Waller factor are taken into account. Monte Carlo calculations are performed for body-centered cubic (bcc) crystals made of C, O, Ne, Mg, Si, S, Ca, and Fe nuclei in the density range from $10^3$ to $10^{11}$ g cm$^{-3}$ at temperatures lower than the melting temperature but higher than the temperature at which the Umklapp processes begin to be "frozen out". A simplified method of calculation is proposed, which makes it possible to describe the results in terms of simple analytic expressions, to extend these expressions to any species of nucleus, and to consider face-centered cubic (fcc) crystals. The kinetic coefficients are shown to depend tangibly on the lattice type. The results are applicable to studies of heat transfer and evolution of the magnetic field in the cores of white dwarfs and in the crusts of neutron stars. The thermal drift of the magnetic field in the crust of a neutron star is discussed.

  6. INITIAL EVALUATION OF A PULSED WHITE SPECTRUM NEUTRON GENERATOR FOR EXPLOSIVE DETECTION

    SciTech Connect (OSTI)

    King, Michael J.; Miller, Gill T.; Reijonen, Jani; Ji, Qing; Andresen, Nord; Gicquel,, Frederic; Kavlas, Taneli; Leung, Ka-Ngo; Kwan, Joe

    2008-06-02

    Successful explosive material detection in luggage and similar sized containers is acritical issue in securing the safety of all airline passengers. Tensor Technology Inc. has recently developed a methodology that will detect explosive compounds with pulsed fast neutron transmission spectroscopy. In this scheme, tritium beams will be used to generate neutrons with a broad energy spectrum as governed by the T(t,2n)4He fission reaction that produces 0-9 MeV neutrons. Lawrence Berkeley National Laboratory (LBNL), in collaboration with Tensor Technology Inc., has designedand fabricated a pulsed white-spectrum neutron source for this application. The specifications of the neutron source are demanding and stringent due to the requirements of high yield and fast pulsing neutron emission, and sealed tube, tritium operation. In a unique co-axial geometry, the ion source uses ten parallel rf induction antennas to externally couple power into a toroidal discharge chamber. There are 20 ion beam extraction slits and 3 concentric electrode rings to shape and accelerate the ion beam into a titanium cone target. Fast neutron pulses are created by using a set ofparallel-plate deflectors switching between +-1500 volts and deflecting the ion beams across a narrow slit. The generator is expected to achieve 5 ns neutron pulses at tritium ion beam energies between 80 - 120 kV. First experiments demonstrated ion source operation and successful beam pulsing.

  7. Luminosity and cooling of highly magnetised white dwarfs: Suppression of luminosity by strong magnetic fields

    E-Print Network [OSTI]

    Bhattacharya, Mukul; Mukerjee, Subroto

    2015-01-01

    We investigate the luminosity and cooling of highly magnetised white dwarfs. We consider white dwarfs with electron-degenerate core and nondegenerate surface layers where cooling occurs by diffusion of photons. We find the temperature and density profiles in the surface layers or envelope of white dwarfs for radially constant and varying magnetic fields by solving the magnetostatic equilibrium and photon diffusion equations in a Newtonian framework. We also obtain the properties of white dwarfs at the core-envelope interface, when the core is assumed to be practically isothermal due to large thermal conductivity. With the increase in magnetic field, the interface temperature and density are found to be increasing. While the interface radius also increases with the increase in magnetic field when the field is hypothesised to be constant throughout the star, the interface radius decreases for varying fields. However, for white dwarfs having fixed interface radius or interface temperature, we find that the lumin...

  8. DUSTY DISKS AROUND WHITE DWARFS. I. ORIGIN OF DEBRIS DISKS

    SciTech Connect (OSTI)

    Dong Ruobing; Wang Yan; Lin, D. N. C.; Liu, X.-W., E-mail: rdong@astro.princeton.ed, E-mail: yuw123@psu.ed, E-mail: lin@ucolick.or, E-mail: liuxw@bac.pku.edu.c [Kavli Institute of Astronomy and Astrophysics, Peking University, Beijing (China)

    2010-06-01

    A significant fraction of the mature FGK stars have cool dusty disks at least an order of magnitude brighter than the solar system's outer zodiacal light. Since such dusts must be continually replenished, they are generally assumed to be the collisional fragments of residual planetesimals analogous to the Kuiper-Belt objects. At least 10% of solar-type stars also bear gas giant planets. The fraction of stars with known gas giants or detectable debris disks (or both) appears to increase with the stellar mass. Here, we examine the dynamical evolution of systems of long-period gas giant planets and residual planetesimals as their host stars evolve off the main sequence, lose mass, and form planetary nebula around remnant white dwarf cores. The orbits of distant gas giant planets and super-km-size planetesimals expand adiabatically. During the most intense asymptotic giant branch mass-loss phase, sub-meter-size particles migrate toward their host stars due to the strong hydrodynamical drag by the intense stellar wind. Along their migration paths, gas giant planets capture and sweep up sub-km-size planetesimals onto their mean-motion resonances. These planetesimals also acquire modest eccentricities which are determined by the mass of the perturbing planets, and the rate and speed of stellar mass loss. The swept-up planetesimals undergo disruptive collisions which lead to the production of grains with an extended size range. The radiation drag on these particles is ineffective against the planets' resonant barrier and they form 30-50 AU size rings which can effectively reprocess the stellar irradiation in the form of FIR continuum. We identify the recently discovered dust ring around the white dwarf WD 2226-210 at the center of the Helix nebula as a prototype of such disks and suggest such rings may be common.

  9. CER Technology Fellowship Program 2008 Project Team: Benjamin Schafer, Assistant Professor, Civil Engineering, Whiting School of Engineering;

    E-Print Network [OSTI]

    Gray, Jeffrey J.

    , Civil Engineering, Whiting School of Engineering; Kapil Dalwani, Graduate Student, Computer Science and Johns Hopkins will be the initial test schools). In civil engineering education at Hopkins, Whiting School of Engineering Project Title: Online Collaborative Sharing Tool for Structural Engineering

  10. Crystal chemistry of three-component white dwarfs and neutron star crusts: phase stability, phase stratification, and physical properties

    E-Print Network [OSTI]

    Engstrom, T A; Crespi, V H

    2015-01-01

    A systematic search for multicomponent crystal structures is carried out for five different ternary systems of nuclei in a polarizable background of electrons, representative of accreted neutron star crusts and some white dwarfs. Candidate structures are "bred" by a genetic algorithm, and optimized at constant pressure under the assumption of linear response (Thomas-Fermi) charge screening. Subsequent phase equilibria calculations reveal eight distinct crystal structures in the $T=0$ bulk phase diagrams, five of which are complicated multinary structures not before predicted in the context of compact object astrophysics. Frequent instances of geometrically similar but compositionally distinct phases give insight into structural preferences of systems with pairwise Yukawa interactions, including and extending to the regime of low density colloidal suspensions made in a laboratory. As an application of these main results, we self-consistently couple the phase stability problem to the equations for a self-gravit...

  11. 78.1: Ultra Compact Polarization Recycling System for White Light LED based Pico-Projection System

    E-Print Network [OSTI]

    78.1: Ultra Compact Polarization Recycling System for White Light LED based Pico-Projection System polarization recycling system, for white light LED based projectors, is proposed. White light LED is applied as the light source, which is composed of blue LED die and yellow phosphor. By optimizing the illumination

  12. IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 53, NO. 3, MARCH 2006 427 White LED Based on Polyfluorene Co-Polymers

    E-Print Network [OSTI]

    Kanicki, Jerzy

    -layer organic LEDs (OLEDs) can be used as a plane light source for current large-area liquid-crystal display to generate the white light [5]. In 1999, Deshpande et al. also demonstrated a white light emitting OLED Member, IEEE Abstract--We report on high-performance, white light emission from polyfluorene co

  13. White Paper on the Status and Future of Ground-based Gamma-ray Astronomy

    E-Print Network [OSTI]

    H. Krawczynski; J. Buckley; K. Byrum; C. Dermer; B. Dingus; A. Falcone; P. Kaaret; F. Krennrich; M. Pohl; V. Vassiliev; D. A. Williams; for the White Paper Team

    2007-09-05

    In recent years, ground-based gamma-ray observatories have made a number of important astrophysical discoveries which have attracted the attention of the wider scientific community. The Division of Astrophysics of the American Physical Society has requested the preparation of a white paper on the status and future of ground-based gamma-ray astronomy to define the science goals of the future observatory, to determine the performance specifications, and to identify the areas of necessary technology development. In this contribution we give a brief overview of the activities of the current white paper team and invite the international community to contribute to the white paper.

  14. White Paper on the Status and Future of Ground-based Gamma-ray Astronomy

    E-Print Network [OSTI]

    Krawczynski, H; Byrum, K; Dermer, C; Dingus, B; Falcone, A; Kaaret, Philip; Krennrich, F; Pohl, M; Vasilev, V; Williams, D A

    2007-01-01

    In recent years, ground-based gamma-ray observatories have made a number of important astrophysical discoveries which have attracted the attention of the wider scientific community. The Division of Astrophysics of the American Physical Society has requested the preparation of a white paper on the status and future of ground-based gamma-ray astronomy to define the science goals of the future observatory, to determine the performance specifications, and to identify the areas of necessary technology development. In this contribution we give a brief overview of the activities of the current white paper team and invite the international community to contribute to the white paper.

  15. White Course White Course

    E-Print Network [OSTI]

    Thompson, Anne

    Arthropod Research Building A12 Arts Cottage F5 Bank of America Career Services F7 Beard Field (Nittany Lion Visitors Center C12 Chambers E3 Chandlee Lab G4 Chemical Ecology Lab A12 Chemistry F5 Coal Utilization Lab

  16. White Course White Course

    E-Print Network [OSTI]

    Thompson, Anne

    Arthropod Research Building A12 Arts Cottage F5 Bank of America Career Services F7 Beard Field (Nittany Lion12 Chemistry F5 Coal Utilization Lab G8 Computer Building E7 Corn Breeding Lab B11 Dairy Complex A9

  17. Near-UV absorption in very cool DA white dwarfs

    SciTech Connect (OSTI)

    Saumon, D.; Holberg, J. B.; Kowalski, P. M. E-mail: holberg@argus.lpl.arizona.edu

    2014-07-20

    The atmospheres of very cool, hydrogen-rich white dwarfs (WDs) (T{sub eff} < 6000 K) are challenging to model because of the increased complexity of the equation of state, chemical equilibrium, and opacity sources in a low-temperature, weakly ionized dense gas. In particular, many models that assume relatively simple models for the broadening of atomic levels and mostly ideal gas physics overestimate the flux in the blue part of their spectra. A solution to this problem that has met with some success is that additional opacity at short wavelengths comes for the extreme broadening of the Lyman ? line of atomic H by collisions primarily with H{sub 2}. For the purpose of validating this model more rigorously, we acquired Hubble Space Telescope STIS spectra of eight very cool WDs (five DA and three DC stars). Combined with their known parallaxes, BVRIJHK, and Spitzer IRAC photometry, we analyze their entire spectral energy distribution (from 0.24 to 9.3 ?m) with a large grid of model atmospheres and synthetic spectra. We find that the red wing of the Lyman ? line reproduces the rapidly decreasing near-UV flux of these very cool stars very well. We determine better constrained values of T{sub eff} and gravity as well as upper limits to the helium abundance in their atmospheres.

  18. Type Ia supernovae from exploding oxygen-neon white dwarfs

    E-Print Network [OSTI]

    Marquardt, Kai S; Ruiter, Ashley J; Seitenzahl, Ivo R; Ohlmann, Sebastian T; Kromer, Markus; Pakmor, Ruediger; Roepke, Friedrich K

    2015-01-01

    The progenitor problem of Type Ia supernovae (SNe Ia) is still unsolved. Most of these events are thought to be explosions of carbon-oxygen (CO) white dwarfs (WDs), but for many of the explosion scenarios, particularly those involving the externally triggered detonation of a sub-Chandrasekhar mass WD (sub-M Ch WD), there is also a possibility of having an oxygen-neon (ONe) WD as progenitor. We simulate detonations of ONe WDs and calculate synthetic observables from these models. The results are compared with detonations in CO WDs of similar mass and observational data of SNe Ia. We perform hydrodynamic explosion simulations of detonations in initially hydrostatic ONe WDs for a range of masses below the Chandrasekhar mass (M Ch), followed by detailed nucleosynthetic postprocessing with a 384-isotope nuclear reaction network. The results are used to calculate synthetic spectra and light curves, which are then compared with observations of SNe Ia. We also perform binary evolution calculations to determine the nu...

  19. Death by Dynamics: Planetoid-Induced Explosions on White Dwarfs

    E-Print Network [OSTI]

    Di Stefano, Rosanne; Guillochon, James; Steiner, James F

    2015-01-01

    At intervals as short as ten thousand years, each white dwarf (WD) passes within a solar radius of a planetoid, i.e., a comet, asteroid, or planet. Gravitational tidal forces tear the planetoid apart; its metal-rich debris falls onto the WD, enriching the atmosphere. A third of WDs exhibit atmospheric "pollution". For roughly every hundred planetoid disruptions, a planetoid collides with a WD. We simulate a small number of collisions, in which "death-by-dynamics" refers to the fate of the planetoid. We also compute the energies and likely durations of a broad sample of collision events, and identify detection strategies at optical and X-ray wavelengths. Collisions with the most massive planetoids can be detected in external galaxies. Some may trigger nuclear burning. If one in $\\sim 10^7-10^8$ of WD-planetoid collisions creates the conditions needed for a Type Ia supernova (SN~Ia), "death-by-dynamics" would also refer to the fate of the WD, and could provide a novel channel for the production of SN~Ia. We con...

  20. Analogue White Hole Horizon and its Impact on Sediment Transport

    E-Print Network [OSTI]

    Debasmita Chatterjee; Praloy Das; Subir Ghosh; B. S. Mazumder

    2015-05-26

    Motivated by the ideas of analogue gravity, we have performed experiments in a flume where an analogue White Hole horizon is generated, in the form of a wave blocking region, by suitably tuned uniform fluid (water) flow and counter-propagating shallow water waves. We corroborate earlier experimental observations by finding a critical wave frequency for a particular discharge above which the waves are effectively blocked beyond the horizon. An obstacle, in the form of a bottom wave, is introduced to generate a sharp blocking zone. All previous researchers used this obstacle. A novel part of our experiment is where we do not introduce the obstacle and find that wave blocking still takes place, albeit in a more diffused zone. Lastly we replace the fixed bottom wave obstacle by a movable sand bed to study the sediment transport and the impact of the horizon or wave blocking phenomenon on the sediment profile. We find signatures of the wave blocking zone in the ripple pattern.

  1. White dwarfs as the maximal soft x-ray scatterers

    SciTech Connect (OSTI)

    Akbari-Moghanjoughi, M. [Department of Physics, Faculty of Sciences, Azarbaijan Shahid Madani University, 51745-406 Tabriz (Iran, Islamic Republic of) [Department of Physics, Faculty of Sciences, Azarbaijan Shahid Madani University, 51745-406 Tabriz (Iran, Islamic Republic of); International Centre for Advanced Studies in Physical Sciences and Institute for Theoretical Physics, Ruhr University Bochum, D-44780 Bochum (Germany)

    2013-09-15

    In this paper, we explore the effect of density on the structure formation and the electromagnetic wave (EMw) elastic scattering on quantum plasmas, using the generalized quantum hydrodynamic model valid for a wide range of the plasma density and relativistic degeneracy. It is found that the electron quantum diffraction effect caused by the Bohm potential has a fundamental effect on the ion correlations in a degenerate electron fluid and crystallization in quantum plasmas in the solid-density regime and beyond. The ion correlations and structure formation are shown to be fundamentally affected by the plasma density and the relativistic degeneracy parameters. Moreover, distinct behavior is shown to exist between the non-relativistic and relativistic matter density regimes, regarding the normalized EMw elastic scattering cross-sections. It is theoretically discovered that the maximal Thomson scattering coincides with the average density of a typical white dwarf corresponding to the soft X-ray wavelength regime. Current research can be very useful in plasma optical diagnostic methods for a wide range of electron number-density from warm dense matter and inertial confinement fusion to the astrophysical compact objects.

  2. Every interacting double white dwarf binary may merge

    E-Print Network [OSTI]

    Shen, Ken J

    2015-01-01

    Interacting double white dwarf binaries can give rise to a wide variety of astrophysical outcomes ranging from faint thermonuclear and Type Ia supernovae to the formation of neutron stars and stably accreting AM Canum Venaticorum systems. One key factor affecting the final outcome is whether mass transfer remains dynamically stable or instead diverges, leading to the tidal disruption of the donor and the merger of the binary. It is typically thought that for low ratios of the donor mass to the accretor mass, mass transfer remains stable, especially if accretion occurs via a disk. In this Letter, we examine disk-accreting binaries with extremely low mass ratios and find that the initial phase of hydrogen-rich mass transfer leads to a classical nova-like outburst on the accretor. Dynamical friction within the expanding nova shell shrinks the orbit and causes the mass transfer rate to increase dramatically above the accretor's Eddington limit, resulting in a binary merger. While further calculations are necessar...

  3. Analogue White Hole Horizon and its Impact on Sediment Transport

    E-Print Network [OSTI]

    Chatterjee, Debasmita; Ghosh, Subir; Mazumder, B S

    2015-01-01

    Motivated by the ideas of analogue gravity, we have performed experiments in a flume where an analogue White Hole horizon is generated, in the form of a wave blocking region, by suitably tuned uniform fluid (water) flow and counter-propagating shallow water waves. We corroborate earlier experimental observations by finding a critical wave frequency for a particular discharge above which the waves are effectively blocked beyond the horizon. An obstacle, in the form of a bottom wave, is introduced to generate a sharp blocking zone. All previous researchers used this obstacle. A novel part of our experiment is where we do not introduce the obstacle and find that wave blocking still takes place, albeit in a more diffused zone. Lastly we replace the fixed bottom wave obstacle by a movable sand bed to study the sediment transport and the impact of the horizon or wave blocking phenomenon on the sediment profile. We find signatures of the wave blocking zone in the ripple pattern.

  4. COSMOLOGICAL FAST RADIO BURSTS FROM BINARY WHITE DWARF MERGERS

    SciTech Connect (OSTI)

    Kashiyama, Kazumi; Mészáros, Peter [Department of Astronomy and Astrophysics, Department of Physics, Center for Particle and Gravitational Astrophysics, Pennsylvania State University, University Park, PA 16802 (United States)] [Department of Astronomy and Astrophysics, Department of Physics, Center for Particle and Gravitational Astrophysics, Pennsylvania State University, University Park, PA 16802 (United States); Ioka, Kunihito, E-mail: kzk15@psu.edu, E-mail: nnp@psu.edu, E-mail: kunihito.ioka@kek.jp [Theory Center, Institute of Particle and Nuclear Studies, KEK, Department of Particle and Nuclear Physics, the Graduate University for Advanced Studies (Sokendai), Tsukuba 305-0801 (Japan)] [Theory Center, Institute of Particle and Nuclear Studies, KEK, Department of Particle and Nuclear Physics, the Graduate University for Advanced Studies (Sokendai), Tsukuba 305-0801 (Japan)

    2013-10-20

    Recently, Thornton et al. reported the detection of four fast radio bursts (FRBs). The dispersion measures indicate that the sources of these FRBs are at cosmological distance. Given the large full sky event rate ?10{sup 4} sky{sup –1} day{sup –1}, the FRBs are a promising target for multi-messenger astronomy. Here we propose double degenerate, binary white-dwarf (WD) mergers as the source of FRBs, which are produced by coherent emission from the polar region of a rapidly rotating, magnetized massive WD formed after the merger. The basic characteristics of the FRBs, such as the energetics, emission duration and event rate, can be consistently explained in this scenario. As a result, we predict that some FRBs can accompany type Ia supernovae (SNe Ia) or X-ray debris disks. Simultaneous detection could test our scenario and probe the progenitors of SNe Ia, and moreover would provide a novel constraint on the cosmological parameters. We strongly encourage future SN and X-ray surveys that follow up FRBs.

  5. White Bluffs Pickling Acid Cribs expedited response action proposal

    SciTech Connect (OSTI)

    Not Available

    1993-07-01

    The US Environmental Protection Agency (EPA) and Washington State Department of Ecology (Ecology) recommended in a letter dated March 4, 1992 (Attachment 1) that the US Department of Energy (DOE) prepare an expedited response action (ERA) for the White Bluffs Pickling Acid Cribs Site. The lead regulatory agency for this ERA is the EPA, with Ecology providing support. The goal of this ERA is to reduce the potential of any residual contaminant migration from the cribs to the soil column and groundwater. The cribs are the only waste site within the 100-IU-5 operable unit. Since the operable unit is surrounded by other waste units, tracing the potential groundwater contamination from the 100-IU-5 operable unit for this ERA would not be effective. Groundwater will be investigated with the 100-IU-2 operable unit. This ERA proposal presents the characterization data from the site investigations conducted in November of 1992. This information is evaluated to present the best method for reducing potential of contaminant migration from the disposal unit, ensuring both protection of human health and the environment. The ERA proposal will undergo a public review. EPA and Ecology will issue an Action Agreement Memorandum after comment resolution. This Action Memorandum may authorize implementation of the ERA proposal`s recommended alternative. The ERA may also provide a No Further Action Interim Record of Decision (IROD) of the 100-IU-5 operable unit.

  6. Developmental white matter microstructure in autism phenotype and corresponding endophenotype during adolescence

    E-Print Network [OSTI]

    Lisiecka, D. M.; Holt, R.; Tait, R.; Ford, M.; Lai, M.-C.; Chura, L. R.; Baron-Cohen, S.; Spencer, M. D.; Suckling, J.

    2015-03-17

    During adolescence, white matter microstructure undergoes an important stage of development. It is hypothesized that the alterations of brain connectivity that have a key role in autism spectrum conditions (ASCs) may interact with the development...

  7. A novel white-light scanning interferometer for absolute nano-scale gap thickness measurement

    E-Print Network [OSTI]

    Xu, Zhiguang

    This paper presents a special configuration of white-light scanning interferometer, in which the measured gap is not located in any interference arm of the interferometer, but acts as an amplitude-and-phase modulator of ...

  8. Selection of roost sites by Honduran white bats, Ectophylla alba (Chiroptera: Phyllostomatidae)

    E-Print Network [OSTI]

    Timm, Robert M.; Mortimer, Jeanne

    1976-04-01

    Ectophylla alba H. Allen (Chiroptera: Phyllostomatidae), the Honduran white bat, was found to alter the leaves of five species of Heliconia (H. imbricata, H. laptispatha, H. pogonantha, H. tortuosa, and an undescribed ...

  9. Biodegradation of hazardous waste using white rot fungus: Project planning and concept development document

    SciTech Connect (OSTI)

    Luey, J.; Brouns, T.M.; Elliott, M.L.

    1990-11-01

    The white rot fungus Phanerochaete chrysosporium has been shown to effectively degrade pollutants such as trichlorophenol, polychlorinated biphenyls (PCBs), dioxins and other halogenated aromatic compounds. These refractory organic compounds and many others have been identified in the tank waste, groundwater and soil of various US Department of Energy (DOE) sites. The treatment of these refractory organic compounds has been identified as a high priority for DOE's Research, Development, Demonstration, Testing, and Evaluation (RDDT E) waste treatment programs. Unlike many bacteria, the white rot fungus P. chrysosporium is capable of degrading these types of refractory organics and may be valuable for the treatment of wastes containing multiple pollutants. The objectives of this project are to identify DOE waste problems amenable to white rot fungus treatment and to develop and demonstrate white rot fungus treatment process for these hazardous organic compounds. 32 refs., 6 figs., 7 tabs.

  10. A model simulation of white-winged dove population dynamics in the Tamaulipan Biotic Province 

    E-Print Network [OSTI]

    Martinez, Cristina Ann

    2002-01-01

    I present the development, evaluation, and sensitivity analysis of a simulation model representing two components of population dynamics-natality and mortality-for the white-winged dove (Zenaida asiatica asiatica; WWDO). I also discuss the role...

  11. Health in black and white : debates on racial and ethnic health disparities in Brazil

    E-Print Network [OSTI]

    Pagano, Anna

    2011-01-01

    Valle 1985 Updating the Cost of Not Being White in Brazil.Race, class, and power in Brazil. P. -M. Fontaine, ed. Pp.Ideas and Social Policy in Brazil, 1870-1940. In The Idea of

  12. An Investigation into the Perception of Color under LED White Composite Spectra with Modulated Color Rendering

    E-Print Network [OSTI]

    O'Reilly, Una-May

    emitting diodes, LEDs. We examined seven LED white composite spectra with different color rendering of a pilot study that evaluates the perceptual impact of modulation of color rendering using multi-chip light

  13. Light extraction enhanced white light-emitting diodes with multi-layered phosphor configuration

    E-Print Network [OSTI]

    You, Jiun Pyng; Tran, Nguyen T.; Shi, Frank G.

    2010-01-01

    and J. K. Kim, “Solid-state light sources getting smart,”power phosphor-converted light-emitting diodes based on III-for phosphor- based white-light-emitting diodes,” Appl.

  14. LABORATORY ASTROPHYSICS WHITE PAPER (BASED ON THE 2010 NASA LABORATORY ASTROPHYSICS WORKSHOP

    E-Print Network [OSTI]

    Savin, Daniel Wolf

    1 LABORATORY ASTROPHYSICS WHITE PAPER (BASED ON THE 2010 NASA LABORATORY ASTROPHYSICS WORKSHOP Federman, University of Toledo Paul Goldsmith, NASA Jet Propulsion Laboratory Caroline Kilbourne, NASA Ridge National Laboratory, LOC Chair Susanna Widicus Weaver, Emory University Additional contributions

  15. Microsoft Word - GRS Review_OMB White Paper - Real Property Right...

    Energy Savers [EERE]

    - Real Property Right-sizing and Carbon Reduction August 7 2009 2.docx Microsoft Word - GRS ReviewOMB White Paper - Real Property Right-sizing and Carbon Reduction August 7...

  16. IMPROVING FLUID REGISTRATION THROUGH WHITE MATTER SEGMENTATION Yi-Yu Chou1

    E-Print Network [OSTI]

    Thompson, Paul

    IMPROVING FLUID REGISTRATION THROUGH WHITE MATTER SEGMENTATION Yi-Yu Chou1 , Natasha Leporé1 J. Wright3 , Arthur W. Toga1 , Paul M. Thompson1 1 Laboratory of Neuro Imaging, UCLA Dept

  17. IMPROVING FLUID REGISTRATION THROUGH WHITE MATTER SEGMENTATION IN A TWIN STUDY DESIGN

    E-Print Network [OSTI]

    Thompson, Paul

    IMPROVING FLUID REGISTRATION THROUGH WHITE MATTER SEGMENTATION IN A TWIN STUDY DESIGN Yi-Yu Chou1 J. Wright3 , Arthur W. Toga1 , Paul M. Thompson1 1 Laboratory of Neuro Imaging, UCLA Dept

  18. Analysis of the Black-capped Vireo and White-eyed Vireo Nest Predator assemblages 

    E-Print Network [OSTI]

    Conkling, Tara J.

    2011-08-08

    Predation is the leading cause of nest failure in songbirds. My study identified nest predators of black-capped vireos and white-eyed vireos, quantified the activity of potential predator species, examined the relationships between vegetation...

  19. Results of CC Follow-Up in the G. Rollie White Building 

    E-Print Network [OSTI]

    Liu, C.; Turner, W. D.; Claridge, D. E.; Deng, S.; Bruner, H. L.

    2002-01-01

    of energy consumption of G. Rollie White Coliseum included energy consumption and HVAC system operation data analysis, measurement on HVAC systems, and examination of the control program. HVAC hardware problems, HVAC operation problems, and control program...

  20. Spiral Disk Instability Can Drive Thermonuclear Explosions in Binary White Dwarf Mergers

    E-Print Network [OSTI]

    Kashyap, Rahul; García-Berro, Enrique; Aznar-Siguán, Gabriela; Ji, Suoqing; Lorén-Aguilar, Pablo

    2015-01-01

    Thermonuclear, or Type Ia supernovae (SNe Ia), originate from the explosion of carbon-oxygen white dwarfs, and serve as standardizable cosmological candles. However, despite their importance, the nature of the progenitor systems which give rise to SNe Ia has not been hitherto elucidated. Observational evidence favors the double-degenerate channel, in which merging white dwarf binaries lead to SNe Ia. Furthermore, significant discrepancies exist between observations and theory, and to date, there has been no self-consistent merger model which yields a SNe Ia. Here we show that a spiral mode instability in the accretion disk formed during a binary white dwarf merger leads to a detonation on a dynamical timescale. This mechanism sheds light on how white dwarf mergers may frequently yield SNe Ia.

  1. A white paper on relevant aspects of Population Dynamics, Marine Community Ecology, and Oceanography

    E-Print Network [OSTI]

    , and Oceanography of Marine Microbes for the Department of Energy Genomes to Life project: CARBON SEQUESTRATIONA white paper on relevant aspects of Population Dynamics, Marine Community Ecology ........................................................................................................7 Introductory Marine Community Ecology

  2. Nutritional Contribution of Phytoplankton to the Pacific White Shrimp Litopenaeus vannamei 

    E-Print Network [OSTI]

    Sanchez Corrales, Dagoberto Raul

    2012-07-16

    The goal of this study was to characterize the nutritional contribution of microalgae to white-legged shrimp and optimize fish meal (FM) and fish oil (FO) inclusion levels in their diets in the presence of microalgae. ...

  3. Comparative foraging ecology of white-tailed deer and Angora goats on the Edwards Plateau, Texas 

    E-Print Network [OSTI]

    Jacobson, Roy Arthur

    1996-01-01

    This study investigated how seasonal patterns in forage abundance and quality influenced the feeding behavior of white-tailed deer ( Odocolieus virginianus) and Angora goats; two similar-sized ungulates with different digestive morphologies. I...

  4. Evidence for Neandertal Jewelry: Modified White-Tailed Eagle Claws at Krapina

    E-Print Network [OSTI]

    Radov?i?, Davorka; Radov?i?, Jakov; Sršen, Ankica Oros; Frayer, David W.

    2015-03-11

    We describe eight, mostly complete white-tailed eagle (Haliaëtus [Haliaeetus] albicilla) talons from the Krapina Neandertal site in present-day Croatia, dating to approximately 130 kyrs ago. Four talons bear multiple, edge-smoothed cut marks; eight...

  5. Assessment of the urban public's knowledge of white-tailed deer management in two Texas communities 

    E-Print Network [OSTI]

    Alderson, Jessica Lynn

    2009-05-15

    Urbanization throughout much of Texas has resulted in diminished wildlife habitat, resulting from fragmented landscapes. Several previous studies addressed the public’s attitudes concerning the most acceptable white-tailed ...

  6. Development and initial assessment of Texas Cooperative Extension's white-tailed dear management module 

    E-Print Network [OSTI]

    Bedgood, Mark Andrew

    2005-02-17

    The purpose of this study was to evaluate the development and initial use of Texas Cooperative Extension?s (TCE) White-tailed Deer Management Module (WDMM) delivered over the Internet. The results of this study will ...

  7. White-tailed deer population dynamics and management on the Lyndon B. Johnson Space Center 

    E-Print Network [OSTI]

    Whisenant, Shane Weston

    2004-11-15

    White-tailed deer (Odocoileus virginianus) numbers on the National Aeronautics and Space Administration's (NASA) Johnson Space Center (JSC) in Houston, Texas have increased in recent years and are a cause of urban-related ...

  8. Pollution of single white dwarfs by accretion of many small asteroids

    E-Print Network [OSTI]

    M. Jura

    2008-02-27

    Extrapolating from the solar system's asteroid belt, we propose that externally-contaminated white dwarfs without an infrared excess may be experiencing continuous accretion of gas-phase material that ultimately is derived from the tidal destruction of multiple small asteroids. If this scenario is correct, then observations of metal-polluted white dwarfs may lead to determining the bulk elemental compositions of ensembles of extrasolar minor planets.

  9. Material system for tailorable white light emission and method for making thereof

    DOE Patents [OSTI]

    Smith, Christine A.; Lee, Howard W.

    2004-08-10

    A method of processing a composite material to tailor white light emission of the resulting composite during excitation. The composite material is irradiated with a predetermined power and for a predetermined time period to reduce the size of a plurality of nanocrystals and the number of a plurality of traps in the composite material. By this irradiation process, blue light contribution from the nanocrystals to the white light emission is intensified and red and green light contributions from the traps are decreased.

  10. Material system for tailorable white light emission and method for making thereof

    DOE Patents [OSTI]

    Smith, Christine A. (Livermore, CA); Lee, Howard W. H. (Fremont, CA)

    2009-05-19

    A method of processing a composite material to tailor white light emission of the resulting composite during excitation. The composite material is irradiated with a predetermined power and for a predetermined time period to reduce the size of a plurality of nanocrystals and the number of a plurality of traps in the composite material. By this irradiation process, blue light contribution from the nanocrystals to the white light emission is intensified and red and green light contributions from the traps are decreased.

  11. The effect of "white noise" on time perception, task satisfaction, and performance 

    E-Print Network [OSTI]

    Stuart, Mark Alan

    1979-01-01

    THE EFFECT OF "WHITE NOISE" ON Til'K PERCEPTION, TASK SATISFACTION, AND PERFORMANCE A Thesis By NARK ALAN STUART Submitted to the Graduate College of Texas A&31 University in partial fulfillment of the requirement for the degree of i...%ASTER OF SCIENCE December 1979 Major Subject: Psychology THE EFFECT OF "WHITE NOISE" ON TIME PERCEPTION, TASK SATISFACTION, AND PERFORMANCE A Thesis MARK ALAN STUART Approved as to style and content 'by: Chairman of C ittee embe Member ead of Department...

  12. Physical Properties of the Current Census of Northern White Dwarfs within 40 pc of the Sun

    E-Print Network [OSTI]

    Limoges, M -M; Lépine, S

    2015-01-01

    We present a detailed description of the physical properties of our current census of white dwarfs within 40 pc of the Sun, based on an exhaustive spectroscopic survey of northern hemisphere candidates from the SUPERBLINK proper motion database. Our method for selecting white dwarf candidates is based on a combination of theoretical color-magnitude relations and reduced proper motion diagrams. We reported in an earlier publication the discovery of nearly 200 new white dwarfs, and we present here the discovery of an additional 133 new white dwarfs, among which we identify 96 DA, 3 DB, 24 DC, 3 DQ, and 7 DZ stars. We further identify 178 white dwarfs that lie within 40 pc of the Sun, representing a 40% increase of the current census, which now includes 492 objects. We estimate the completeness of our survey at between 66 and 78%, allowing for uncertainties in the distance estimates. We also perform a homogeneous model atmosphere analysis of this 40 pc sample and find a large fraction of massive white dwarfs, in...

  13. White phosphorus pits focused feasibility study final July 2007.

    SciTech Connect (OSTI)

    Davis, B.; Martino, L.

    2007-08-21

    The White Phosphorus Burning Pits (WPP) Area of Concern (AOC) is a site of about 5.5 acres (2.2 ha) located in the J-Field Study Area, in the Edgewood Area of Aberdeen Proving Ground (APG), Maryland (Figure 1.1). Considerable information about the WPP exists as a result of efforts to characterize the hazards associated with J-Field. Contamination in the J-Field Study Area was first detected during an environmental survey of the APG Edgewood Area conducted in 1977 and 1978 (Nemeth et al. 1983) by the U.S. Army Toxic and Hazardous Materials Agency (USATHAMA; predecessor to the U.S. Army Environmental Center). As part of a subsequent USATHAMA environmental survey, 11 wells were installed and sampled at J-Field (three of them at the WPP) (Nemeth 1989). Contamination was also detected in 1983 during a munitions disposal survey conducted by Princeton Aqua Science (1984). The Princeton Aqua Science investigation involved installing and sampling nine wells (four at the WPP) and collecting and analyzing surficial and deep composite soil samples (including samples from the WPP area). In 1986, the U.S. Environmental Protection Agency (EPA) issued a Resource Conservation and Recovery Act (RCRA) Permit (MD3-21-002-1355) requiring a post-wide RCRA Facility Assessment (RFA) and a hydrogeologic assessment of J-Field. In 1987, the U.S. Geological Survey (USGS) began a two-phase hydrogeologic assessment in which data were collected to model groundwater flow at J-Field. Soil-gas investigations were conducted, several well clusters were installed (four at the WPP), a groundwater flow model was developed, and groundwater and surface water monitoring programs were established that continue today. The results of the USGS study were published by Hughes (1993).

  14. Type Ia supernovae from merging white dwarfs. I. Prompt detonations

    SciTech Connect (OSTI)

    Moll, R.; Woosley, S. E. [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Raskin, C.; Kasen, D. [Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

    2014-04-20

    Merging white dwarfs are a possible progenitor of Type Ia supernovae (SNe Ia). Numerical models suggest that a detonation might be initiated before the stars have coalesced to form a single compact object. Here we study such prompt detonations by means of numerical simulations, modeling the disruption and nucleosynthesis of the stars until the ejecta reach the coasting phase, and generating synthetic light curves and spectra. Three models are considered with primary masses 0.96 M {sub ?}, 1.06 M {sub ?}, and 1.20 M {sub ?}. Of these, the 0.96 M {sub ?} dwarf merging with a 0.81 M {sub ?} companion, with an {sup 56}Ni yield of 0.58 M {sub ?}, is the most promising candidate for reproducing common SNe Ia. The more massive mergers produce unusually luminous SNe Ia with peak luminosities approaching those attributed to 'super-Chandrasekhar' mass SNe Ia. While the synthetic light curves and spectra of some of the models resemble observed SNe Ia, the significant asymmetry of the ejecta leads to large orientation effects. The peak bolometric luminosity varies by more than a factor of two with the viewing angle, and the velocities of the spectral absorption features are lower when observed from angles where the light curve is brightest. The largest orientation effects are seen in the ultraviolet, where the flux varies by more than an order of magnitude. The set of three models roughly obeys a width-luminosity relation, with the brighter light curves declining more slowly in the B band. Spectral features due to unburned carbon from the secondary star are also seen in some cases.

  15. XSLT and XQuery as Operator Languages A. Abram White

    E-Print Network [OSTI]

    and XQuery to build language-neutral Solar operators. Introduction Solar is designed to provide information dynamics. Solar is a software infrastructure designed to deliver contextual information to these applications. Solar represents context data as events, and uses small programs called operators to filter

  16. Laser applications

    SciTech Connect (OSTI)

    Edelson, M.C. )

    1989-11-01

    The breadth of current applications of laser technology is described. It is used as the basis for extrapolating to future application in such activities as AVLIS, SIS, ICP-MS, and RIMs.

  17. TOWARD A SPECTROSCOPIC CENSUS OF WHITE DWARFS WITHIN 40 pc OF THE SUN

    SciTech Connect (OSTI)

    Limoges, M.-M.; Bergeron, P.; Lepine, S. E-mail: bergeron@astro.umontreal.ca

    2013-05-15

    We present the preliminary results of a survey aimed at significantly increasing the range and completeness of the local census of spectroscopically confirmed white dwarfs. The current census of nearby white dwarfs is reasonably complete only to about 20 pc of the Sun, a volume that includes around 130 white dwarfs, a sample too small for detailed statistical analyses. This census is largely based on follow-up investigations of stars with very large proper motions. We describe here the basis of a method that will lead to a catalog of white dwarfs within 40 pc of the Sun and north of the celestial equator, thus increasing by a factor of eight the extent of the northern sky census. White dwarf candidates are identified from the SUPERBLINK proper motion database, allowing us to investigate stars down to a proper motion limit {mu} > 40 mas yr{sup -1}, while minimizing the kinematic bias for nearby objects. The selection criteria and distance estimates are based on a combination of color-magnitude and reduced proper motion diagrams. Our follow-up spectroscopic observation campaign has so far uncovered 193 new white dwarfs, among which we identify 127 DA (including 9 DA+dM and 4 magnetic), 1 DB, 56 DC, 3 DQ, and 6 DZ stars. We perform a spectroscopic analysis on a subsample of 84 DAs, and provide their atmospheric parameters. In particular, we identify 11 new white dwarfs with spectroscopic distances within 25 pc of the Sun, including five candidates to the D < 20 pc subset.

  18. Radionuclide Inventory Distribution Project Data Evaluation and Verification White Paper

    SciTech Connect (OSTI)

    NSTec Environmental Restoration

    2010-05-17

    Testing of nuclear explosives caused widespread contamination of surface soils on the Nevada Test Site (NTS). Atmospheric tests produced the majority of this contamination. The Radionuclide Inventory and Distribution Program (RIDP) was developed to determine distribution and total inventory of radionuclides in surface soils at the NTS to evaluate areas that may present long-term health hazards. The RIDP achieved this objective with aerial radiological surveys, soil sample results, and in situ gamma spectroscopy. This white paper presents the justification to support the use of RIDP data as a guide for future evaluation and to support closure of Soils Sub-Project sites under the purview of the Federal Facility Agreement and Consent Order. Use of the RIDP data as part of the Data Quality Objective process is expected to provide considerable cost savings and accelerate site closures. The following steps were completed: - Summarize the RIDP data set and evaluate the quality of the data. - Determine the current uses of the RIDP data and cautions associated with its use. - Provide recommendations for enhancing data use through field verification or other methods. The data quality is sufficient to utilize RIDP data during the planning process for site investigation and closure. Project planning activities may include estimating 25-millirem per industrial access year dose rate boundaries, optimizing characterization efforts, projecting final end states, and planning remedial actions. In addition, RIDP data may be used to identify specific radionuclide distributions, and augment other non-radionuclide dose rate data. Finally, the RIDP data can be used to estimate internal and external dose rates. The data quality is sufficient to utilize RIDP data during the planning process for site investigation and closure. Project planning activities may include estimating 25-millirem per industrial access year dose rate boundaries, optimizing characterization efforts, projecting final end states, and planning remedial actions. In addition, RIDP data may be used to identify specific radionuclide distributions, and augment other non-radionuclide dose rate data. Finally, the RIDP data can be used to estimate internal and external dose rates.

  19. Application Programming

    E-Print Network [OSTI]

    Brass, Stefan

    16. Application Programming I (Embedded SQL, ODBC, JDBC) 16­1 Part 16: Application Programming I, ``Embedded SQL'', Chapter 5, ``Oracle JDBC''. . Michael Gertz: Oracle/SQL Tutorial, 1999. [http.5 Developer's Guide. McGraw­Hill, 1999. . SQL Server Books Online, ``Building SQL Server Applications''. . Art

  20. Application Programming

    E-Print Network [OSTI]

    Brass, Stefan

    17. Application Programming I (Embedded SQL, ODBC, JDBC) 17­1 Part 17: Application Programming I, ``Embedded SQL'', Chapter 5, ``Oracle JDBC''. . Michael Gertz: Oracle/SQL Tutorial, 1999. [http.5 Developer's Guide. McGraw­Hill, 1999. . SQL Server Books Online, ``Building SQL Server Applications''. . Art

  1. arXiv:physics/0203031 Non-white noise and a multiple-rate Markovian closure theory for turbulence

    E-Print Network [OSTI]

    Hammett, Greg

    parameters, to allow for a more accurate model of e#11;ects such as non-white noise. (As will be discussed in some cases a#11;ords a more accurate treatment of e#11;ects such as non-white noise), while retaining more below, the RMC does include more non- white-noise e#11;ects than one might think at #12;rst

  2. Correlation of hard X-ray and white light emission in solar flares

    E-Print Network [OSTI]

    Kuhar, Matej; Oliveros, Juan Carlos Martínez; Battaglia, Marina; Kleint, Lucia; Casadei, Diego; Hudson, Hugh S

    2015-01-01

    A statistical study of the correlation between hard X-ray and white light emission in solar flares is performed in order to search for a link between flare-accelerated electrons and white light formation. We analyze 43 flares spanning GOES classes M and X using observations from RHESSI (Reuven Ramaty High Energy Solar Spectroscopic Imager) and HMI (Helioseismic and Magnetic Imager). We calculate X-ray fluxes at 30 keV and white light fluxes at 6173 \\r{A} summed over the hard X-ray flare ribbons with an integration time of 45 seconds around the peak hard-X ray time. We find a good correlation between hard X-ray fluxes and excess white light fluxes, with a highest correlation coefficient of 0.68 for photons with energy of 30 keV. Assuming the thick target model, a similar correlation is found between the deposited power by flare-accelerated electrons and the white light fluxes. The correlation coefficient is found to be largest for energy deposition by electrons above ~50 keV. At higher electron energies the co...

  3. A recursive algorithm for wavelet denoising : applications to signal and image processing.

    E-Print Network [OSTI]

    École Normale Supérieure

    A recursive algorithm for wavelet denoising : applications to signal and image processing method for denoising signals with isolated singularities corrupted with Gaussian white noise [2]. A quasi/2 , where N is the number of available samples of the signal and W is the standard deviation of the noise

  4. Channel Capacity and Achievable Rates of Peak Power Limited AWGNC, and their Applications to

    E-Print Network [OSTI]

    Ikeda, Shiro

    of the framework is how to design the switching strategy. In this paper, we discuss the practical strategy for AMCChannel Capacity and Achievable Rates of Peak Power Limited AWGNC, and their Applications white Gaussian noise channel (AWGNC). For the constraint, we focus on the peak power instead

  5. NREL Activities to Open Capital Market Investment and Bank Lending for Solar Deployment: Presentation to the White House (Presentation)

    SciTech Connect (OSTI)

    Mendelsohn, M.; Joshi, J.

    2014-09-01

    Briefing for White House personnel and members of various agencies (HUD, USDA, etc.) on SAPC process and see what efficiencies can be brought to Federal contracting process.

  6. I am Black AND Jewish: Black Jewish Women’s Experiences in “White” Jewish Communities in Brazil

    E-Print Network [OSTI]

    Gondek, Abby S.

    2008-01-01

    ideal after scientific racism. Black into white: Race andbut continues to enact racism and anti-Semitism (Barcelos,context demonstrates why racism (including anti-Semitism) is

  7. The White Mountain Polarimeter Telescope and an Upper Limit on CMB Polarization

    E-Print Network [OSTI]

    Alan R. Levy; Rodrigo Leonardi; Markus Ansmann; Marco Bersanelli; Jeffery Childers; Terrence D. Cole; Ocleto D'Arcangelo; G. Vietor Davis; Philip M. Lubin; Joshua Marvil; Peter R. Meinhold; Gerald Miller; Hugh O`Neill; Fabrizio Stavola; Nathan C. Stebor; Peter T. Timbie; Maarten van der Heide; Fabrizio Villa; Thyrso Villela; Brian D. Williams; Carlos A. Wuensche

    2008-04-23

    The White Mountain Polarimeter (WMPol) is a dedicated ground-based microwave telescope and receiver system for observing polarization of the Cosmic Microwave Background. WMPol is located at an altitude of 3880 meters on a plateau in the White Mountains of Eastern California, USA, at the Barcroft Facility of the University of California White Mountain Research Station. Presented here is a description of the instrument and the data collected during April through October 2004. We set an upper limit on $E$-mode polarization of 14 $\\mu\\mathrm{K}$ (95% confidence limit) in the multipole range $170<\\ell<240$. This result was obtained with 422 hours of observations of a 3 $\\mathrm{deg}^2$ sky area about the North Celestial Pole, using a 42 GHz polarimeter. This upper limit is consistent with $EE$ polarization predicted from a standard $\\Lambda$-CDM concordance model.

  8. Development of Advanced Manufacturing Methods for Warm White LEDs for General Lighting

    SciTech Connect (OSTI)

    Deshpande, Anirudha; Kolodin, Boris; Jacob, Cherian; Chowdhury, Ashfaqul; Kuenzler, Glenn; Sater, Karen; Aesram, Danny; Glaettli, Steven; Gallagher, Brian; Langer, Paul; Setlur, Anant; Beers, Bill

    2012-03-31

    GE Lighting Solutions will develop precise and efficient manufacturing techniques for the “remote phosphor” platform of warm-white LED products. In volume, this will be demonstrated to drive significant materials, labor and capital productivity to achieve a maximum possible 53% reduction in overall cost. In addition, the typical total color variation for these white LEDs in production will be well within the ANSI bins and as low as a 4-step MacAdam ellipse centered on the black body curve. Achievement of both of these objectives will be demonstrated while meeting a performance target of > 75 lm/W for a warm-white LED and a reliability target of <30% lumen drop / <2-step MacAdam ellipse shift, estimated over 50,000 hrs.

  9. Luminosity and cooling of highly magnetised white dwarfs: Suppression of luminosity by strong magnetic fields

    E-Print Network [OSTI]

    Mukul Bhattacharya; Banibrata Mukhopadhyay; Subroto Mukerjee

    2015-09-03

    We investigate the luminosity and cooling of highly magnetised white dwarfs. We consider white dwarfs with electron-degenerate core and nondegenerate surface layers where cooling occurs by diffusion of photons. We find the temperature and density profiles in the surface layers or envelope of white dwarfs for radially constant and varying magnetic fields by solving the magnetostatic equilibrium and photon diffusion equations in a Newtonian framework. We also obtain the properties of white dwarfs at the core-envelope interface, when the core is assumed to be practically isothermal due to large thermal conductivity. With the increase in magnetic field, the interface temperature and density are found to be increasing. While the interface radius also increases with the increase in magnetic field when the field is hypothesised to be constant throughout the star, the interface radius decreases for varying fields. However, for white dwarfs having fixed interface radius or interface temperature, we find that the luminosity significantly decreases, falling in the range ~ 10^{-6}-10^{-13} solar luminosity, with the increase in magnetic field strength at the interface and hence envelope, in the corresponding range ~ 10^9-10^{11} G, in particular for the varying magnetic fields which are expected to be more realistic. This is remarkable as it argues for magnetised white dwarfs to be dimmer and be practically hidden in the H-R diagram. We also find the cooling rates corresponding to these luminosities. Interestingly, the decrease in temperature with time, for the fields under consideration, is not found to be appreciable --- at most by a factor of two and that is also for the constant field cases.

  10. Observation of the cervix and artificial insemination in captive white-tailed deer 

    E-Print Network [OSTI]

    Magyar, Stephen John

    1986-01-01

    OBSERVATION OF THE CERVIX AliD ARTIFICIAL INSEMINATION IN CAPTIVE WHITE-TAILED DEER A Thesis by STEPHEN JOHN MAGYAR Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1986 Major Subject: Veterinary Physiology OBSERVATION OF THE CERVIX AND ARTIFICIAL INSEMINATION IN CAPTIVE WHITE-TAILED DEER A Thesis by STEPHEN JOHN MAGYAR Approved as to style and content by: Stephen W. J. Sea er (Chairman of Co...

  11. High-efficiency white organic light-emitting diodes using thermally activated delayed fluorescence

    SciTech Connect (OSTI)

    Nishide, Jun-ichi; Hiraga, Yasuhide; Nakanotani, Hajime; Adachi, Chihaya

    2014-06-09

    White organic light-emitting diodes (WOLEDs) have attracted much attention recently, aimed for next-generation lighting sources because of their high potential to realize high electroluminescence efficiency, flexibility, and low-cost manufacture. Here, we demonstrate high-efficiency WOLED using red, green, and blue thermally activated delayed fluorescence materials as emissive dopants to generate white electroluminescence. The WOLED has a maximum external quantum efficiency of over 17% with Commission Internationale de l'Eclairage coordinates of (0.30, 0.38).

  12. University of Washington, Seattle White paper for international collaboration on QUEST in Japan White Paper for University of Washington Collaboration with the QUEST-ST in Japan to develop long-

    E-Print Network [OSTI]

    University of Washington, Seattle ­ White paper for international collaboration on QUEST in Japan 1/2 White Paper for University of Washington Collaboration with the QUEST-ST in Japan to develop long- pulse. Jarboe, University of Washington, Seattle, WA 98195 E-mails: raman@aa.washington.edu and Jarboe@aa.washington

  13. Phosphors for near UV-Emitting LED's for Efficacious Generation of White Light

    SciTech Connect (OSTI)

    McKittrick, Joanna

    2013-09-30

    1) We studied phosphors for near-UV (nUV) LED application as an alternative to blue LEDs currently being used in SSL systems. We have shown that nUV light sources could be very efficient at high current and will have significantly less binning at both the chip and phosphor levels. We identified phosphor blends that could yield 4100K lamps with a CRI of approximately 80 and LPWnUV,opt equal to 179 for the best performing phosphor blend. Considering the fact that the lamps were not optimized for light coupling, the results are quite impressive. The main bottleneck is an optimum blue phosphor with a peak near 440 nm with a full width half maximum of about 25 nm and a quantum efficiency of >95%. Unfortunately, that may be a very difficult task when we want to excite a phosphor at ~400 nm with a very small margin for Stokes shift. Another way is to have all the phosphors in the blend having the excitation peak at 400 nm or slightly shorter wavelength. This could lead to a white light source with no body color and optimum efficacy due to no self-absorption effects by phosphors in the blend. This is even harder than finding an ideal blue phosphor, but not necessarily impossible. 2) With the phosphor blends identified, light sources using nUV LEDs at high current could be designed with comparable efficacy to those using blue LEDs. It will allow us to design light sources with multiple wattages using the same chips and phosphor blends simply by varying the input current. In the case of blue LEDs, this is not currently possible because varying the current will lower the efficacy at high current and alter the color point. With improvement of phosphor blends, control over CRI could improve. Less binning at the chip level and also at the phosphor blend level could reduce the cost of SSL light sources. 3) This study provided a deeper understanding of phosphor characteristics needed for LEDs in general and nUV LEDs in particular. Two students received Ph.D. degrees and three undergraduates participated in this work. Two of the undergraduate students are now in graduate school. The results were widely disseminated – 20 archival journal publications (published, accepted or in preparation) and three conference proceedings resulted. The students presented their work at 11 different national/international conferences (32 oral or poster presentations) and the PI’s delivered 12 invited, keynote or plenary lectures.

  14. TRACE and YOHKOH Observations of a White Light Flare Thomas R. Metcalf 1 , David Alexander 1 , Hugh S. Hudson 2 ,

    E-Print Network [OSTI]

    Metcalf, Thomas R.

    S. Hudson 2 , and Dana W. Longcope 3 ABSTRACT We present observations of a large solar white light at 400 km s 1 . This is evidence in favor of particle acceleration models which energize the electrons), are typically the most energetic of solar ares. \\White light" refers to continuum emission in excess of the pho

  15. MOVEMENT PATTERNS OF WHITE-TAILED DEER IN EAST CENTRAL SOUTH DAKOTA RELATIVE TO WINTER RANGES AND MANAGEMENT

    E-Print Network [OSTI]

    MOVEMENT PATTERNS OF WHITE-TAILED DEER IN EAST CENTRAL SOUTH DAKOTA RELATIVE TO WINTER RANGES 2007 #12;11 MOVEMENT PATTERNS OF WHITE-TAILED DEER IN EAST CENTRAL SOUTH DAKOTA RELATIVE TO WINTER in Brown, Edmunds, Faulk, and McPherson counties, especially Doug Perrion, Noel Pond, and Dennis Gonyea

  16. Secondary mineral formation in the White River tephra in grassland and forest soils in central Yukon Territory

    E-Print Network [OSTI]

    Sanborn, Paul

    Secondary mineral formation in the White River tephra in grassland and forest soils in central July 2005. Strickland, A. J., Arocena, J. M., Sanborn, P. and Smith, C. A. S. 2005. Secondary mineral-arid climate were investigated to evaluate the formation of secondary minerals within the White River tephra

  17. White Sturgeon Mitigation and Restoration in the Columbia and Snake Rivers Upstream from Bonneville Dam; 2001-2002 Annual Report.

    SciTech Connect (OSTI)

    Ward, David L.; Kern, J. Chris; Hughes, Michele L.

    2003-12-01

    We report on our progress from April 2001 through March 2002 on determining the effects of mitigative measures on productivity of white sturgeon populations in the Columbia River downstream from McNary Dam, and on determining the status and habitat requirements of white sturgeon populations in the Columbia and Snake rivers upstream from McNary Dam.

  18. White Sturgeon Mitigation and Restoration in the Columbia and Snake Rivers Upstream from Bonneville Dam; 2002-2003 Annual Report.

    SciTech Connect (OSTI)

    Ward, David L.; Kern, J. Chris; Hughes, Michele L.

    2004-02-01

    We report on our progress from April 2002 through March 2003 on determining the effects of mitigative measures on productivity of white sturgeon populations in the Columbia River downstream from McNary Dam, and on determining the status and habitat requirements of white sturgeon populations in the Columbia and Snake rivers upstream from McNary Dam.

  19. THE POST-MERGER MAGNETIZED EVOLUTION OF WHITE DWARF BINARIES: THE DOUBLE-DEGENERATE CHANNEL OF SUB-CHANDRASEKHAR TYPE Ia SUPERNOVAE AND THE FORMATION OF MAGNETIZED WHITE DWARFS

    SciTech Connect (OSTI)

    Ji Suoqing; Fisher, Robert T. [University of Massachusetts Dartmouth, Department of Physics, 285 Old Westport Road, North Dartmouth, MA 02740 (United States); Garcia-Berro, Enrique [Departament de Fisica Aplicada, Universitat Politecnica de Catalunya, c/Esteve Terrades, 5, E-08860 Castelldefels (Spain); Tzeferacos, Petros; Jordan, George; Lee, Dongwook [Center for Astrophysical Thermonuclear Flashes, The University of Chicago, Chicago, IL 60637 (United States); Loren-Aguilar, Pablo [School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL (United Kingdom); Cremer, Pascal [Bethe Center for Theoretical Physics, Universitaet Bonn, Nussallee 12, D-53115 Bonn (Germany); Behrends, Jan [Fachbereich Physik, Freie Universitaet Berlin, Arnimallee 14, D-14195 Berlin (Germany)

    2013-08-20

    Type Ia supernovae (SNe Ia) play a crucial role as standardizable cosmological candles, though the nature of their progenitors is a subject of active investigation. Recent observational and theoretical work has pointed to merging white dwarf binaries, referred to as the double-degenerate channel, as the possible progenitor systems for some SNe Ia. Additionally, recent theoretical work suggests that mergers which fail to detonate may produce magnetized, rapidly rotating white dwarfs. In this paper, we present the first multidimensional simulations of the post-merger evolution of white dwarf binaries to include the effect of the magnetic field. In these systems, the two white dwarfs complete a final merger on a dynamical timescale, and are tidally disrupted, producing a rapidly rotating white dwarf merger surrounded by a hot corona and a thick, differentially rotating disk. The disk is strongly susceptible to the magnetorotational instability (MRI), and we demonstrate that this leads to the rapid growth of an initially dynamically weak magnetic field in the disk, the spin-down of the white dwarf merger, and to the subsequent central ignition of the white dwarf merger. Additionally, these magnetized models exhibit new features not present in prior hydrodynamic studies of white dwarf mergers, including the development of MRI turbulence in the hot disk, magnetized outflows carrying a significant fraction of the disk mass, and the magnetization of the white dwarf merger to field strengths {approx}2 Multiplication-Sign 10{sup 8} G. We discuss the impact of our findings on the origins, circumstellar media, and observed properties of SNe Ia and magnetized white dwarfs.

  20. Application Engineering,

    E-Print Network [OSTI]

    Skogestad, Sigurd

    A Plantwide Control Procedure with Application to Control Structure Design for a Gas Power Plant S. Skogestad, M. S. Govatsmark Department of Chemical Engineering, NTNU #12; Outline #15; Gas power plant #15; Plantwide control #15; Plantwide control procedure #15; Application #15; Concluding remarks #12; Gas power

  1. HST+COS spectra of the double white dwarf CSS 41177 place the secondary inside the pulsational instability strip

    E-Print Network [OSTI]

    Bours, Madelon; Gaensicke, Boris; Parsons, Steven

    2015-01-01

    We present Hubble Space Telescope + Cosmic Origins Spectrograph (HST+COS) data of the eclipsing double white dwarf binary CSS 41177. Due to the temperature difference between the two white dwarfs, the HST+COS far-ultraviolet data are dominated by the hot, primary white dwarf and allow us to precisely measure its temperature (T1). Using eclipse observations, we also tightly constrain the temperature of the cooler secondary white dwarf (T2). Our results, where T1 = 22439 +/- 59 K and T2 = 10876 +/- 32 K, with the uncertainties being purely statistical, place the secondary inside and close to the blue edge of the empirical instability strip for low temperature hydrogen-atmosphere white dwarfs. Dedicated high-speed photometry is encouraged to probe for the presence of pulsations, which will constrain the border of the instability strip as well as probe a new region of low gravity within the strip.

  2. SPECTROSCOPIC DETERMINATION OF MASS FOR A SAMPLE OF DAO WHITE DWARFS

    E-Print Network [OSTI]

    Burleigh, Matt

    , Leicester LE1 7RH, UK J. B. HOLBERG AND D. SING Lunar and Planetary Laboratory, University of Arizona are a group of white dwarfs that show both hydrogen and helium in their spectra. Their origin could be explained as an intermediate step be- #12; 2 tween the helium dominated DOs and the hydrogen dominated DAs

  3. Digesta Passage and Fiber Digestibility in Captive White-Faced Sakis (Pithecia pithecia)

    E-Print Network [OSTI]

    Norconk, Marilyn A.

    Digesta Passage and Fiber Digestibility in Captive White-Faced Sakis (Pithecia pithecia) MARILYN A 5-day trials on a low-fiber, blended diet revealed high fiber fraction digestibilities (neutral digestibility that is intermediate between ripe-pulp frugivores and folivores. Am. J. Primatol. 58:23­34, 2002

  4. User-guided White Balance for Mixed Lighting Conditions Ivaylo Boyadzhiev

    E-Print Network [OSTI]

    Bala, Kavita

    -consumption fluo- rescent and LED lights vary widely in their color temperature, and rooms with multiple bulbsUser-guided White Balance for Mixed Lighting Conditions Ivaylo Boyadzhiev Cornell University Kavita Bala Cornell University Sylvain Paris Adobe Fr´edo Durand MIT CSAIL (a) input with mixed lighting

  5. White House Council on Environmental Quality Internship Program Who Are We?

    E-Print Network [OSTI]

    , clean water, green jobs, environmental justice, NEPA, clean energy, and ocean and coastal affairs. Our in clean energy and environment decision-making. In addition, interns can gain experience in communications White House offices in the development of environmental policies and initiatives. CEQ was established

  6. White Paper: The Role of Venus in the Cosmologies of Mesoamerica, West Mexico,

    E-Print Network [OSTI]

    #12;White Paper: The Role of Venus in the Cosmologies of Mesoamerica, West Mexico, the American Southwest, and Southeast Polly Schaafsma (Chair) (Museum of New Mexico, Santa Fe), Ed Krupp (Griffith are examined between Mesoamerica, West Mexico, the American Southwest and Southeast. In Mesoamerica the timed

  7. THE APPLE GAME AND THE PRESSING-DOWN LEMMA Brian White

    E-Print Network [OSTI]

    White, Brian

    THE APPLE GAME AND THE PRESSING-DOWN LEMMA Brian White Math 161 Lecture Notes (Winter 2005) Recall, but for every apple game is played in a series of stages, one for each element of 1. At stage 0, you are given a countable collection of apples. At each stage n 1 with n > 0: (1) If you have

  8. Venkat Srinivasan John W. Weidner Ralph E. White Mathematical models of the nickel hydroxide active material

    E-Print Network [OSTI]

    -cadmium, nickel-metal hydride, nickel-zinc, and nickel-hydrogen batteries [1]. However, even after a century. The negative electrode used in the cell could be a porous cadmium, metal hydride, zinc, or gas-fed hydrogen Á R.E. White (&) Department of Chemical Engineering, Swearingen Engineering Building, University

  9. White(etching!matter!in!bearing!steel! Part1:!Controlled(cracking!of!52100!steel!

    E-Print Network [OSTI]

    Cambridge, University of

    ! quenched! and! untempered! steel! normally! used! in! the! manufacture! of! bearings.!The!varieties!of!cracks!studied!include!sparsely!distributed!martensite(lubricant!interactions,!or!hydrogen!trapping!can!be!studied!further.! ! Keywords:!bearing!steel,!indentation!cracks,!cracked!martensite,!grain(boundary!decohesion,! surface! 1! White(etching!matter!in!bearing!steel! Part1:!Controlled(cracking!of!52100!steel! ! W

  10. White light emitting Ho{sup 3+}-doped CdS nanocrystal ingrained glass nanocomposites

    SciTech Connect (OSTI)

    Dey, Chirantan; Karmakar, Basudeb; Goswami, Madhumita

    2015-02-23

    We report the generation of white light from Ho{sup 3+} ion doped CdS nanocrystal ingrained borosilicate glass nanocomposites prepared by the conventional melt-quench method. Near visible 405?nm diode laser excited white light emission is produced by tuning the blue emission from the Ho{sup 3+} ions, green band edge, and orange-red surface-state emissions of the nanocrystalline CdS, which are further controlled by the size of the nanocrystals. The absorption and emission spectra evidenced the excitation of Ho{sup 3+} ions by absorption of photons emitted by the CdS nanocrystals. The high color rendering index (CRI?=?84–89) and befitting chromaticity coordinates (x?=?0.308–0.309, y?=?0.326–0.338) of white light emission, near visible harmless excitation wavelength (405?nm), and high absorbance values at excitation wavelength point out that these glass nanocomposites may serve as a prominent candidate for resin free high power white light emitting diodes.

  11. Novel image processing techniques to better understand white matter disruption in multiple sclerosis

    E-Print Network [OSTI]

    In Multiple Sclerosis (MS) patients, conventional magnetic resonance imaging (MRI) shows a pattern of white rights reserved. Keywords: Multiple Sclerosis; Diffusion Tensor MRI; Atlas; Visualization; Tractography Institutes of Health, USA, RG 3478A2/2 from the National Multiple Sclerosis Society, USA, and NSF ITR 0426558

  12. Estimating Total Length of Headless White Hake, Urophycis tenuis, Landed in Maine

    E-Print Network [OSTI]

    Estimating Total Length of Headless White Hake, Urophycis tenuis, Landed in Maine EDWIN P. CREASER, little is known about the length composition of this species landed from Maine fishing vessels sampling personnel of the Maine Department of Marine Resources to develop an easy and rapid method

  13. A Science White Paper submitted in response to the 2010 Decadal Survey Call Solar Dynamo

    E-Print Network [OSTI]

    Simitev, Radostin D

    A Science White Paper submitted in response to the 2010 Decadal Survey Call Solar Dynamo A-mail: sasha@sun.stanford.edu #12;Solar Dynamo 1 Overview It is generally accepted that cosmic magnetic fields are essentially the same. The solar magnetism is studied in great details, from global fields of the interior

  14. CMU-ITC-83-029 WHITE PAPER: The ICE Execution Environment

    E-Print Network [OSTI]

    CMU-ITC-83-029 WHITE PAPER: The ICE Execution Environment Document Number 003-001/002.01 DRAFT Unclassified June 21st, 1983 _[H Conner, TC Peters, LK Raper Information Technology Center Carnegie-Mellon University Schenley Park Pittsburgh, PA 15213 #12;The ICE Execution Environment DRAFT 003- 001/002.01 U ncla

  15. Phytoremediation of Aged Aromatic Contaminants in Soil Using White Lupin Principle Investigators

    E-Print Network [OSTI]

    Rhode Island, University of

    solvents, and their by-products pose a risk to water quality in the Northeastern U.S. Bioremediation lupin (Lupinus albus) to improve efficacy of bioremediation of "aged" organic contaminants in soil that will improve our ability to detect effects of white lupin bioremediation of aged naphthalene in soil

  16. Efficient and Color-Tunable Oxyfluoride Solid Solution Phosphors for Solid-State White Lighting

    SciTech Connect (OSTI)

    Im, Won Bin; George, Nathan; Kurzman, Joshua; Brinkley, Stuart; Mikhailovsky, Alexander; Hu, Jerry; Chmelka, Bradley F.; DenBaars, Steven P.; Seshadri, Ram (UCSB)

    2012-09-06

    A solid solution strategy helps increase the efficiency of Ce{sup 3+} oxyfluoride phosphors for solid-state white lighting. The use of a phosphor-capping architecture provides additional light extraction. The accompanying image displays electroluminescence spectra from a 434-nm InGaN LED phosphor that has been capped with the oxyfluoride phosphor.

  17. Project Information Form Project Title White Paper on Climate Adaptation for State DOTs and Local Agencies

    E-Print Network [OSTI]

    California at Davis, University of

    and threats identified in steps one and two), 4) rating the criticality of each asset to overall system on the vulnerability and criticality evaluations. The white paper is presented using these five components. Describe Implementation of Research Outcomes (or why not implemented) (Attach Any Photos) Impacts

  18. Racial and Ethnic Identities Among Mexican-White Couples in Texas 

    E-Print Network [OSTI]

    Guillen, Jennifer Cassandra

    2014-09-02

    after drinking tequila all day?” among others. When I confronted the white men and women who we were surrounded by about these comments, their responses were “But, that’s how it is in Mexico, right?” “Stereotypes exist for a reason” and “You’re being...

  19. Effect of gamma radiation on selected functional and physical properties of liquid egg white 

    E-Print Network [OSTI]

    Ball, Hershell Ray

    1966-01-01

    ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o 14 4 The relative protein composition of egg white (Warner, 1954 ) . . . . . . . . . . . . . . . ~ . . . . . . . . . . . ~ 22 5 Analysis of variance for beating time . . ~. . . . . . . . 30 6 Multiple regression analysis of beating time... . . . . . . . . . . . . . . . . . . . . , . . 42 5 Illustration of textural difference &. . . . . . . . . . . 46 6 Typical electrophoretic patterns obtained . . . . . . 76 C HL PTER I GENERA L CONSIDERATIONS Introduction The use of ionizing radiation in the processing of foods has been...

  20. MIGRATION AND DISTRIBUTION OF WHITE MARLIN AND BLUE MARLIN IN THE ATLANTIC OCEAN'

    E-Print Network [OSTI]

    catches of exploratory fishing vessels. De Sylva and Davis (1963) reported on their studies of the white the distribu- tion, spawning, and relative abundance of bill- fishes in the Atlantic Ocean; this comprehensive, Japanese longline vessels began fishing for tunas and bill-

  1. White Pine Emission Trends of Monoterpenes and Sesquiterpenes After Acute Ozone Exposure

    E-Print Network [OSTI]

    Collins, Gary S.

    White Pine Emission Trends of Monoterpenes and Sesquiterpenes After Acute Ozone Exposure Daniel M on a large scale in forests. Monoterpene and sesquiterpene emissions from trees significantly contribute investigates the effect of an abiotic stress, specifically acute ozone exposure, on the terpene emissions

  2. Tunable White-Light-Emitting Mn-Doped ZnSe Nanocrystals Vijay Kumar Sharma,

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    Se-related blue emission (410 and 435 nm), Zn-related defect state green emission (520 nm), and Mn-dopant related for the purpose of generation of photometrically high quality white light while maintaining the energy efficiency is to combine red-, green-, and blue-emitting NCs in an appropriate ratio.1,2 However, when one simply mixes

  3. Computational Modeling and the Experimental Plasma Research Program A White Paper Submitted to the FESAC Subcommittee

    E-Print Network [OSTI]

    Computational Modeling and the Experimental Plasma Research Program A White Paper Submitted of the fusion energy program. The experimental plasma research (EPR) program is well positioned to make major in fusion development and promote scientific discovery. Experimental plasma research projects explore

  4. I would like all figures in my article published in Black and White Education in Brazil

    E-Print Network [OSTI]

    Barbosa, Marcia C. B.

    I would like all figures in my article published in Black and White Education in Brazil: Marcia C Postal 15051 91501970, Porto Alegre, RS, Brazil marcia. barbosa@ufrgs.br Keywords Gender, Physics, Brazil Abstract An overview of the Brazilian educational system is presented with the main

  5. Stacked white OLED having separate red, green and blue sub-elements

    DOE Patents [OSTI]

    Forrest, Stephen; Qi, Xiangfei; Slootsky, Michael

    2015-06-23

    The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.

  6. RELATIVE ABUNDANCE OF WHITE GRUBS (COLEOPTERA: SCARABAEIDAE) IN FLORIDA SUGARCANE ON SAND AND MUCK SOILS

    E-Print Network [OSTI]

    Ma, Lena

    the abundance of white grub species (Coleoptera: Scarabaeidae). Adult flight activity was monitored with light adult 19 #12;Scarabaeidae came from sugarcane fields. Three of the traps were located in fields on muck. Sugarcane plants in the sampled fields were 2 or more years old (ratoon crops) and were selected because

  7. LHC-PROJECT-REPORT-1135 S. White, H. Burkhardt, S. Cavalier1)

    E-Print Network [OSTI]

    Boyer, Edmond

    SOLUTIONS FOR VERY HIGH BETA IN ATLAS An!insertion!optics!with!a!!*!of!at!least!2600m!has BETA IN ATLAS S. White, H. Burkhardt, P. Puzo, CERN, Geneva, Switzerland S. Cavalier, M. Heller, LAL that they will be fullfilled. EFFECT OF THE HIGH-BETA ON THE TUNE The LHC nominal overall tunes are Qx = 64.31 and Qy = 59

  8. A Guide for Preparing and Submitting White Papers to the Technology Innovation Program

    E-Print Network [OSTI]

    . These white papers will be used by TIP staff in an effort to create a pipeline of societal challenges suitable but that could be addressed by innovative technologies and high-risk, high-reward research. The creative thoughts, to support, promote, and accelerate innovation in the United States through high-risk, high-reward research

  9. Solar Flares and the Chromosphere A white paper for the Decadal Survey*

    E-Print Network [OSTI]

    California at Berkeley, University of

    Solar Flares and the Chromosphere A white paper for the Decadal Survey* L. Fletcher, R. Turkmani, H acceleration (De Pontieu et al. 2007). The need for chromospheric observations of flares: The solar flare of radiation in a solar flare (Canfield et al 1986, Neidig 1989, Woods et al. 2004). In other words, solar

  10. Cree's High-Power White LED Delivers 121 lm/W

    Broader source: Energy.gov [DOE]

    Cree's commercial high-power white LEDs can now deliver 121 lm/W at 35A/cm2 current density. These particular Cree XLamp® XP-G LEDs deliver 267 lumens at a drive current of 700 mA and an operating...

  11. 0 50 100 150 yards White Trail (3.22 miles total)

    E-Print Network [OSTI]

    Teskey, Robert O.

    Trail (3.22 miles total) White Trail (3.22 miles total) Blue Trail (0.4 miles) Green Trail (0.14 miles.17 miles total) Middle Oconee River S. Milledge Avenue Power Line Power Line Power Line Power Line Middle Headquarters (Upper) Shade Garden (Lower) Power Line Parking #12;

  12. Management of Mobile Agent Systems using Social Insect Metaphors Tony White1

    E-Print Network [OSTI]

    This paper concerns itself with the management of software agents moving throughout a network for the purposeManagement of Mobile Agent Systems using Social Insect Metaphors Tony White1 , Bernard Pagurek2@scs.carleton.ca, bernie@sce.carleton.ca, deugo@scs.carleton.ca} Abstract The management of mobile agent systems that solve

  13. General fractional multiparameter white noise theory and stochastic partial differential equations

    E-Print Network [OSTI]

    Hu, Yaozhong; Oksendal, B.; Zhang, T. S.

    2004-01-01

    We present a white noise calculus for d-parameter fractional Brownian motion B-H (x, omega); x is an element of R-d, omega is an element of Omega with general d-dimensional Hurst parameter H = (H-l,..., H-d) is an element of (0, 1)(d...

  14. Transportation of the MOAB Uranium Mill Tailings to White Mesa Mill by Slurry Pipeline

    SciTech Connect (OSTI)

    Hochstein, R. F.; Warner, R.; Wetz, T. V.

    2003-02-26

    The Moab uranium mill tailings pile, located at the former Atlas Minerals Corporation site approximately three miles north of Moab, Utah, is now under the control of the US Department of Energy (''DOE''). The location of the tailings pile adjacent to the Colorado River, and the ongoing contamination of groundwater and seepage of pollutants into the river, have lead to the investigation, as part of the final site remediation program, of alternatives to relocate the tailings to a qualified permanent disposal site. This paper will describe the approach being taken by the team formed between International Uranium (USA) Corporation (''IUC'') and Washington Group International (''WGINT'') to develop an innovative technical proposal to relocate the Moab tailings to IUC's White Mesa Mill south of Blanding, Utah. The proposed approach for relocating the tailings involves using a slurry pipeline to transport the tailings to the White Mesa Mill. The White Mesa Mill is a fully licensed, active uranium mill site that is uniquely suited for permanent disposal of the Moab tailings. The tailings slurry would be dewatered at the White Mesa Mill, the slurry water would be recycled to the Moab site for reuse in slurry makeup, and the ''dry'' tailings would be permanently disposed of in an approved below grade cell at the mill site.

  15. CREATION OF WHITE DWARF PHOTOSPHERIC CONDITIONS IN THE LAB USING THE Z PULSED POWER FACILITY

    E-Print Network [OSTI]

    Jefferys, William

    . It is the energy produced by the fusion reactions inside a star that provides the counterbalance to gravity in order to hold the star up. Helium fusion reactions produce more energy than their hydrogen counterparts Abstract. Astronomers routinely determine the masses of white dwarf stars through fitting the observed

  16. An Open Ocean Trial of Controlled Upwelling Using Wave Pump Technology ANGELICQUE WHITE

    E-Print Network [OSTI]

    White, Angelicque

    An Open Ocean Trial of Controlled Upwelling Using Wave Pump Technology ANGELICQUE WHITE College) ABSTRACT In 1976, John D. Isaacs proposed to use wave energy to invert the density structure of the ocean of deep water to the surface ocean. Although Isaacs's wave-powered pump has taken many forms, from energy

  17. 2015 LaCNS Neutron Scattering Seed Funding Request for White Papers

    E-Print Network [OSTI]

    pg. 1 2015 LaCNS Neutron Scattering Seed Funding Request for White Papers DEADLINE: January 12, 2015 The Louisiana Consortium for Neutron Scattering (LaCNS), a Department of Energy ­ EPSCo projects involving neutron scattering. These projects can be in any area of Materials Science

  18. Dialing in color with rare earth metals: facile photoluminescent production of true white light

    E-Print Network [OSTI]

    Tew, Gregory N.

    Dialing in color with rare earth metals: facile photoluminescent production of true white light of lanthanide ions which is the focus of this report. Rare earth metal complexes have relatively good Combining polymeric architectures with metal ions produces hybrid materials with extremely rich properties

  19. Magnetic field effects on the thermonuclear combustion front of Chandrasekhar mass white dwarfs

    E-Print Network [OSTI]

    Cristian R. Ghezzi; Elisabete M. de Gouveia Dal Pino; Jorge E. Horvath

    2000-12-06

    The explosion of a type Ia supernova starts in a white dwarf as a laminar deflagration at the center of the star and soon several hydrodynamic instabilities, in particular, the Rayleigh-Taylor instability, begin to act. A cellular stationary combustion and a turbulent combustion regime are rapidly achieved by the flame and maintained up to the end of the so-called flamelet regime when the transition to detonation is believed to occur. The burning velocity at these regimes is well described by the fractal model of combustion. Using a semi-analytic approach, we describe the effect of magnetic fields on the fractalization of the front considering a white dwarf with a nearly dipolar magnetic field. We find an intrinsic asymmetry on the velocity field that may be maintained up to the free expansion phase of the remnant. Considering the strongest values inferred for a white dwarf's magnetic fields with strengths up to $10^{8}-10^{9}$ G at the surface and assuming that the field near the centre is roughly 10 times greater, asymmetries in the velocity field higher than $10-20 %$ are produced between the magnetic polar and the equatorial axis of the remnant which may be related to the asymmetries found from recent spectropolarimetric observations of very young SN Ia remnants. Dependence of the asymmetry with white dwarf composition is also analyzed.

  20. Gain-scheduling control of port-fuel-injection processes Andrew White a

    E-Print Network [OSTI]

    Choi, Jongeun

    of gasoline PFI and ethanol DI dual-fuel system to substantially increase gasoline engine efficiencyGain-scheduling control of port-fuel-injection processes Andrew White a , Jongeun Choi a,b,Ã, Ryozo: Engine control Port fuel injection Gain-scheduling control Linear parameter varying system LMI

  1. A Multiwavelength Study of Three Solar Flares M. R. Kundu, A. Nindos 1 , S. M. White

    E-Print Network [OSTI]

    White, Stephen

    of the are phenomenon. Microwave emission from solar ares can provide important diagnostics of acceleration pro- cesses 1998) that the basic emission mechanism of solar microwave bursts is gyrosynchrotron from mildlyA Multiwavelength Study of Three Solar Flares M. R. Kundu, A. Nindos 1 , S. M. White Astronomy

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

    E-Print Network [OSTI]

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

  3. GEORGE, J. C. 1962. A histophysiological study ofthe red and white mus-

    E-Print Network [OSTI]

    . MidI. Nat. 68:487-494. GORDON, M. S. 1968. Oxygen consumption of red and white muscles from tuna.). Compo Biochem. Physiol. 49B:367-373. JOHNSTON, I. A., W. DAVISON, AND G. GOLDSPINK. 1977. Energy that is common in southern California 1965; StephensetaI.1974). These authors and Helly' have suggested

  4. A NextSTEPS white paper by: Amy Myers Jaffe,1 Rosa Dominguez-Faus,1

    E-Print Network [OSTI]

    California at Davis, University of

    Transportation Energy Pathways) Program UC Davis Institute of Transportation Studies February 18, 2015 Final Version INSTITUTE OF TRANSPORTATION STUDIES EXPLORING the ROLE of NATURAL GAS in U.S. TRUCKING 1 Institute of Transportation Studies, UC Davis 2 Rice University #12;1 NextSTEPS White Paper: Exploring the Role of Natural Gas

  5. The evaluation of white rot fungi in the decoloration of textile dyes

    E-Print Network [OSTI]

    Ramsay, Juliana

    degradation has been confined to chemostat-enriched cul- tures adapted to a single dye.4,5 Over the past decade, the white rot fungi have been studied for their ability to degrade recalcitrant organo-pollutants such as polyaromatic hydro- carbons, chlorophenols, and polychlorinated biphenyls.6­8 The decoloration of phenol red

  6. Bob-White Populations as Affected by Woodland Management in Eastern Texas. 

    E-Print Network [OSTI]

    Lay, Daniel W.

    1940-01-01

    NO. 592, TEXAS AGRICULTURAL EXPERIMENT STATION Table 1. Plant foods in 56 bob-white stomachs* taken in late winter. in Walker and Trinity counties, Texas Name of Plant ................................ Bush clover. Lespedeza striata... .................................. I>oveweed, Croton capzfafus ............. Green stuffs. including bur clover, chickweed, etc.. Rhynchosin sp. ............................................ ..................................... Menodora hrterophylln.. ......................... I...

  7. Effect of white water chemistry on corrosion passivation behavior of 304L stainless steel

    E-Print Network [OSTI]

    Das, Suman

    Effect of white water chemistry on corrosion passivation behavior of 304L stainless steel What, while sulfate has an inhibiting effect on pitting corrosion. Stainless steels rely on passive films are closely related to repassivation properties of the stainless steel. Crack tip in Stress Corrosion Cracking

  8. Aging discrepancies of white spruce affect the interpretation of static age structure in boreal

    E-Print Network [OSTI]

    Macdonald, Ellen

    NOTE Aging discrepancies of white spruce affect the interpretation of static age structure. Our objectives were to determine whether ground-level ring counts underestimate root collar age of understory P. glauca and whether aging errors increase with stand age. Trees were collected from one to nine

  9. The effect of bot fly larvae on reproduction in white-footed mice, Peromyscus leucopus

    E-Print Network [OSTI]

    Timm, Robert M.; Cook, Edwin F.

    1979-01-01

    The effect of bot fly larvae on reproduction in white-footed mice (Peromyscus leucopus noveboracensis) was determined from a sample of 1050 mice that were snap-trapped over a 2-year period in E-central Minnesota. Bot fly larvae (Cuterebra...

  10. Precise atmospheric parameters for the shortest-period binary white dwarfs: gravitational waves, metals, and pulsations

    SciTech Connect (OSTI)

    Gianninas, A.; Kilic, Mukremin; Dufour, P.; Bergeron, P.; Brown, Warren R.; Hermes, J. J.

    2014-10-10

    We present a detailed spectroscopic analysis of 61 low-mass white dwarfs and provide precise atmospheric parameters, masses, and updated binary system parameters based on our new model atmosphere grids and the most recent evolutionary model calculations. For the first time, we measure systematic abundances of He, Ca, and Mg for metal-rich, extremely low mass white dwarfs and examine the distribution of these abundances as a function of effective temperature and mass. Based on our preliminary results, we discuss the possibility that shell flashes may be responsible for the presence of the observed He and metals. We compare stellar radii derived from our spectroscopic analysis to model-independent measurements and find good agreement except for white dwarfs with T {sub eff} ? 10,000 K. We also calculate the expected gravitational wave strain for each system and discuss their significance to the eLISA space-borne gravitational wave observatory. Finally, we provide an update on the instability strip of extremely low mass white dwarf pulsators.

  11. Solar Observations with a MillimeterWavelength Array 1 S. M. White and M. R. Kundu

    E-Print Network [OSTI]

    White, Stephen

    Solar Observations with a Millimeter­Wavelength Array 1 S. M. White and M. R. Kundu Dept. of Astronomy, Univ. of Maryland, College Park MD 20742 submitted to Solar Phys., 1991 December revised, 1992, and will allow us to map the solar chromosphere at high spatial resolution and to study solar radio burst sources

  12. Spitzer IRAC Observations of White Dwarfs. II. Massive Planetary and Cold Brown Dwarf Companions to Young and Old Degenerates

    E-Print Network [OSTI]

    J. Farihi; E. E. Becklin; B. Zuckerman

    2008-05-13

    This paper presents a sensitive and comprehensive IRAC 3-8 $\\mu$m photometric survey of white dwarfs for companions in the planetary mass regime with temperatures cooler than the known T dwarfs. The search focuses on descendents of intermediate mass stars with $M\\ga3$ $M_{\\odot}$ whose inner, few hundred AU regions cannot be probed effectively for massive planets and brown dwarfs by any alternative existing method. Furthermore, examination for mid-infrared excess explores an extensive range of orbital semimajor axes, including the intermediate 5-50 AU range poorly covered and incompletely accessible by other techniques at main sequence or evolved stars. Three samples of white dwarfs are chosen which together represent relatively young as well as older populations of stars: 9 open cluster white dwarfs, 22 high mass field white dwarfs, and 17 metal-rich field white dwarfs. In particular, these targets include: 7 Hyads and 4 field white dwarfs of similar age; 1 Pleiad and 19 field white dwarfs of similar age; van Maanen 2 and 16 similarly metal-rich white dwarfs with ages between 1 and 7 Gyr. No substellar companion candidates were identified at any star. By demanding a 15% minimum photometric excess at 4.5 $\\mu$m to indicate a companion detection, upper limits in the planetary mass regime are established at 34 of the sample white dwarfs, 20 of which have limits below 10 $M_{\\rm J}$ according to substellar cooling models. Specifically, limits below the minimum mass for deuterium burning are established at all Pleiades and Hyadeswhite dwarfs, as well as similarly young field white dwarfs, half a dozen of which receive limits at or below 5 $M_{\\rm J}$. Two IRAC epochs at vMa 2 rule out $T\\ga200$ K proper motion companions within 1200 AU.

  13. Brilliant colours from a white snow cover This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Shaw, Joseph A.

    Brilliant colours from a white snow cover This article has been downloaded from IOPscience. Please.org/ped Brilliant colours from a white snow cover Michael Vollmer1 and Joseph A Shaw2 1 University of Applied@fh-brandenburg.de Abstract Surprisingly colourful views are possible from sparkling white snow. It is well known

  14. QTL Conditioning Physiological Resistance and Avoidance to White Mold in Dry Bean Phillip N. Miklas,* William C. Johnson, Richard Delorme, and Paul Gepts

    E-Print Network [OSTI]

    Gepts, Paul

    QTL Conditioning Physiological Resistance and Avoidance to White Mold in Dry Bean Phillip N. Miklas,* William C. Johnson, Richard Delorme, and Paul Gepts ABSTRACT white mold with upright architecture has white mold [caused by Sclerotinia scleroti- orum (Lib.) de Bary], a major disease of common bean

  15. Meso-scale cooling effects of high albedo surfaces: Analysis of meteorological data from White Sands National Monument and White Sands Missile Range

    SciTech Connect (OSTI)

    Fishman, B.; Taha, H.; Akbari, H.

    1994-05-20

    Urban summer daytime temperatures often exceed those of the surrounding rural areas. Summer ``urban heat islands`` are caused by dark roofs and paved surfaces as well as the lack of vegetation. Researchers at Lawrence Berkeley Laboratory are interested in studying the effects of increasing the albedo of roof tops and paved surfaces in order to reduce the impacts of summer urban heat islands. Increasing the albedo of urban surfaces may reduce this heat island effect in two ways, directly and indirectly. The direct effect involves reducing surface temperature and, therefore, heat conduction through the building envelope. This effect of surface albedo on surface temperatures is better understood and has been quantified in several studies. The indirect effect is the impact of high albedo surfaces on the near surface air temperatures. Although the indirect effect has been modeled for the Los Angeles basin by Sailor, direct field observations are required. The objective of this report is to investigate the meso-scale climate of a large high albedo area and identify the effects of albedo on the near surface air temperature. To accomplish this task, data from several surface weather stations at White Sands, New Mexico were analyzed. This report is organized into six sections in addition to this introduction. The first gives the general geological, topographic, and meteorological background of White Sands. The second is a discussion of the basic surface meteorology of the White Sands region. This section is followed by a general discussion of the instrumentation and available data. The fourth section is a description of the method used for data analyis. The fifth section which presents the results of this analysis. Finally, the last section is the summary and conclusion, where a discussion of the results is presented.

  16. A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    S. J. Kleinman; Hugh C. Harris; Daniel J. Eisenstein; James Liebert; Atsuko Nitta; Jurek Krzesi?ski; Jeffrey A. Munn; Conard C. Dahn; Suzanne L. Hawley; Jeffrey R. Pier; Gary Schmidt; Nicole M. Silvestri; J. Allyn Smith; Paula Szkody; Michael A. Strauss; G. R. Knapp; Matthew J. Collinge; A. S. Mukadam; D. Koester; Alan Uomoto; D. J. Schlegel; Scott F. Anderson; J. Brinkmann; D. Q. Lamb; Donald P. Schneider; Donald G. York

    2004-02-12

    We present the full spectroscopic white dwarf and hot subdwarf sample from the SDSS first data release, DR1. We find 2551 white dwarf stars of various types, 240 hot subdwarf stars, and an additional 144 objects we have identified as uncertain white dwarf stars. Of the white dwarf stars, 1888 are non-magnetic DA types and 171, non-magnetic DBs. The remaining (492) objects consist of all different types of white dwarf stars: DO, DQ, DC, DH, DZ, hybrid stars like DAB, etc., and those with non-degenerate companions. We fit the DA and DB spectra with a grid of models to determine the Teff and log(g) for each object. For all objects, we provide coordinates, proper motions, SDSS photometric magnitudes, and enough information to retrieve the spectrum/image from the SDSS public database. This catalog nearly doubles the known sample of spectroscopically-identified white dwarf stars. In the DR1 imaged area of the sky, we increase the known sample of white dwarf stars by a factor of 8.5. We also comment on several particularly interesting objects in this sample.

  17. Maximum mass of stable magnetized highly super-Chandrasekhar white dwarfs: stable solutions with varying magnetic fields

    SciTech Connect (OSTI)

    Das, Upasana; Mukhopadhyay, Banibrata, E-mail: upasana@physics.iisc.ernet.in, E-mail: bm@physics.iisc.ernet.in [Department of Physics, Indian Institute of Science, Bangalore 560012 (India)

    2014-06-01

    We address the issue of stability of recently proposed significantly super-Chandrasekhar white dwarfs. We present stable solutions of magnetostatic equilibrium models for super-Chandrasekhar white dwarfs pertaining to various magnetic field profiles. This has been obtained by self-consistently including the effects of the magnetic pressure gradient and total magnetic density in a general relativistic framework. We estimate that the maximum stable mass of magnetized white dwarfs could be more than 3 solar mass. This is very useful to explain peculiar, overluminous type Ia supernovae which do not conform to the traditional Chandrasekhar mass-limit.

  18. White light emission from silicon oxycarbide films prepared by using atmospheric pressure microplasma jet

    SciTech Connect (OSTI)

    Ding Yi; Shirai, Hajime

    2009-02-15

    An atmospheric pressure microplasma jet was employed as a deposition tool to fabricate silicon oxycarbide films from tetraethoxysilane-argon (Ar) mixture gas at room temperature. Resultant films exhibit intense visible emission under a 325 nm excitation which appears white to naked eyes in the range from {approx}1.75 to {approx}3.5 eV at room temperature. The origin of photoluminescence is attributed to the electron-hole pair recombination through neutral oxygen vacancies (NOVs) in the film. The density of NOV defects was found in the range from 3.48x10{sup 15} to 2.23x10{sup 16} cm{sup -3}. The photoluminescence quantum efficiencies were estimated to be 1.48%-4.15%. Present experiment results demonstrate that the silicon oxycarbide films prepared by using atmospheric pressure microplasma jet would be a competitive candidate for the development of white light emission devices.

  19. Application Acceleration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D SFederal FacilityApplicant I nstructionsApplication

  20. WhiteOptics' Low-Cost Reflector Composite Boosts LED Fixture Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE)

    With the help of DOE funding, WhiteOptics has developed a composite coating that can be used to improve efficiency in backlit, indirect, and cavity-mixing LED luminaire designs by maximizing light reflection and output. The highly diffuse coating, which is based on a novel high-reflectance particle technology, allows for uniform distribution of light without exaggerating the point-source nature of the LEDs, and is intended to offer an overall system cost-improving solution for LED optics.