Sample records for tourism nova scotia

  1. Nova Scotia Jobs Fund (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    The Nova Scotia Jobs Fund pursues investment opportunities for assisting communities in transition, supporting industry sectors, offering regional support, assisting small businesses programs, and...

  2. Nova Scotia Business Development Program (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    The Nova Scotia Business Development Program helps small business get started and existing businesses expand. This program encourages business start-ups and provides help through qualified...

  3. Environmental Assessment (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    Nova Scotia Environment conducts environmental assessments on projects and developments to ensure they adhere to the laws and regulations of the province. Developments required to undergo an...

  4. Air Quality (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    Nova Scotia Environment is responsible for monitoring the air quality in the province, as well as administering fines and permits relating to air quality. The Air Quality Regulations state...

  5. Renewable Energy Standard (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    On February 1, 2007, Nova Scotia's new Renewable Energy Standards took effect. By 2013, Nova Scotia will generate at least 18.5% of the Province's electricity through renewable energy -- wind,...

  6. Scotia Energy Electricity- Net Metering Program (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    Nova Scotia Power Inc. Net Metering allows residential and commercial customers to connect small, renewable energy generating units to the provincial power grid.

  7. Capital Investment Incentive (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    The Capital Investment Incentive (CII) is part of the Productivity Investment Program as outlined in the economic growth plan for Nova Scotia, jobsHere.

  8. Solid Waste Regulations (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    Nova Scotia Environment administers waste management for the province. Regulations include specific rules and standards for landfills, establish a Resource Recovery Fund, and guidelines for...

  9. Efficiency Nova Scotia Releases Energy Efficiency Mobile App...

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

    Efficiency Nova Scotia Releases Energy Efficiency Mobile App Efficiency Nova Scotia Releases Energy Efficiency Mobile App Graphic of the inside of a house, with table and chairs,...

  10. Energy Security in Nova Scotia Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    to maintain energy security #12;Mr. Harper and his energy superpower · "...an ocean of oil soaked sand liesERG/200706 Energy Security in Nova Scotia Larry Hughes Energy Research Group Electrical to Café Canada, Mahone Bay 30 November 2007 #12;Energy security in Nova Scotia Larry Hughes, PhD Energy

  11. Qualifying RPS Market States (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    This entry lists the states with RPS policies that accept generation located in Nova Scotia, Canada as eligible sources towards their Renewable Portfolio Standard targets or goals. For specific...

  12. Climate Action Plan (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    Nova Scotia's Climate Change Action Plan has two main goals: reducing the province's contribution to climate change by reducing greenhouse gas (GHG) emissions and preparing for changes to the...

  13. Nova Scotia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri: EnergyExcellence Seed LLCShores,Activity on Low RiskNova Scotia:

  14. area nova scotia: Topics by E-print Network

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

    Renewed Energy Strategy and Climate Change Action Plan Larry Halifax, Nova Scotia, Canada larry.hughes@dal.ca http:lh.ece.dal.caenen 19 December 2007 Hughes, Larry 4 Foreign...

  15. Community Feed-in Tariff (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    The Community Feed-In Tariff Program (COMFIT) is designed to increase local ownership of small-scale energy projects in Nova Scotia. The program provides an opportunity for community-based power...

  16. Dendrochronological dating of coal mine workings at the Joggins Fossil Cliffs, Nova Scotia, Canada

    E-Print Network [OSTI]

    Walters, Bradley B.

    Dendrochronological dating of coal mine workings at the Joggins Fossil Cliffs, Nova Scotia, Canada,NovaScotia,wasoneofthefirstplacesinNorthAmericawherecoalwasmined.Dendrochronologicalmeth- ods were employed to date timber pit props preserved within relic coal mine workings on the closely with archival records of mining activity. Analysis of the 14 openings al- lows differentiation of two phases

  17. CCCG 2014, Halifax, Nova Scotia, August 1113, 2014 An improved method for generating triangle-mesh models of images

    E-Print Network [OSTI]

    Adams, Michael D.

    CCCG 2014, Halifax, Nova Scotia, August 11­13, 2014 An improved method for generating triangle of Victoria, Victoria, BC, Canada, {xiaom,mdadams}@ece.uvic.ca triangulated were chosen. Since

  18. Mineralogical characterization of arsenic in gold mine tailings from three sites in Nova Scotia

    SciTech Connect (OSTI)

    M Corriveau; H Jamieson; M Parsons; G Hall

    2011-12-31T23:59:59.000Z

    Chronic exposure to high concentrations of arsenic (As) in windblown and vehicle-raised dust from tailings sites in Nova Scotia poses a potential health risk to recreational users of these areas and to nearby residents. The exposure may involve inhalation of dust, as well as oral ingestion of particles. It is important to understand the mineralogy and morphology of As-bearing dust particles in order to evaluate the risk posed by near-surface particulates in As-bearing tailings fields, as this will influence the stability and toxicity of As in the wastes. Optical mineralogy, scanning electron microscopy, electron microprobe, X-ray diffraction, synchrotron-based micro-X-ray diffraction ({mu}XRD) and micro-X-ray absorption near edge structure ({mu}XANES), and sequential leach extractions were applied to tailings samples from three sites in eastern Nova Scotia. Arsenic occurs naturally in these gold deposits mainly in arsenopyrite (FeAsS). In the near-surface material of the tailings fields, sulphide minerals have almost completely oxidized to secondary minerals such as scorodite (FeAsO{sub 4}{center_dot}2H{sub 2}O) and Ca-Fe arsenates. Iron oxyhydroxides contain variable amounts of As{sub 2}O{sub 5} from trace to 30 wt.% and CaO up to 8 wt.%. The presence of multiple As-hosting solid phases, including relatively soluble Ca-Fe arsenates and Fe oxyhydroxides with adsorbed As has important implications for human health risk assessment and remediation design.

  19. NOVA SCOTIA UTILITY AND REVIEW BOARD IN THE MATTER OF: The Public Utilities Act, R.S.N.S. 1989, c.380 as

    E-Print Network [OSTI]

    Hughes, Larry

    in the United Kingdom.7 I teach undergraduate courses in Computer Engineering and graduate courses in energy8 of the Nova Scotia Wind Energy Project, a $400,000 project1 designed to educate Nova Scotians about the benefits of wind energy. The first phase of2 the project collected wind data from various sites around

  20. Petrology, geochemistry, and palynology of Joggins Formation (Westphalian A) coals, Cumberland basin, Nova Scotia

    SciTech Connect (OSTI)

    Hower, J.C. [Univ. of Kentucky Center for Applied Energy Research, Lexington, KY (United States); Calder, J.H. [Nova Scotia Dept. of Natural Resources, Halifax (Canada); Cortland, F.E. [Kentucky Geological Survey, Lexington, KY (United States)] [and others

    1996-09-01T23:59:59.000Z

    Five Westphalian A coals were collected from the Joggins Formation section exposed along Chignecto Bay at Joggins, Nova Scotia. Several of the coal beds along the bay were mined beginning in the early 17th century. There has been little detailed investigation of the coal beds of this classic section. The lowermost coal, the Upper Coal 29 (Fundy), is a high-vitrinite coal with a spore assemblage dominated by arboreous lycopod spores with tree ferns subdominant. The upper portions of the coal bed have the highest ratio of well-preserved to poorly-preserved telinite of any of the coals investigated. Coal 19 (Forty Brine) has 88% total vitrinite but, unlike the Fundy coal bed, the telinite has a poor preservation ratio and half of the total vitrinite population comprises gelocollinite and vitrodetrinite. The latter coal bed is directly overlain by a basin-wide limestone bed. The Lower Kimberly (Coal 15) shows good preservation of vitrinite with relatively abundant telinite among the total vitrinite. The Upper Kimberly, which underlies the tetrapod-bearing lycopsid trees found by Lyell and Dawson in 1852, exhibits an upward decrease in arboreous lycopod spores and an increase in the tree fern spore Punctatisporites minutus. The megaspore record is similarly dominated by Lagenicularugosa paralycopodites and tree fern spores. Telinite preservation increases upwards in the Upper Kimberly but overall is well below the preservation ratio of the Fundy coal bed. The coals are all high sulfur, up to 13.7% total sulfur for the lower lithotype of the Fundy coal bed. The Kimberly coals are not only high in total and pyritic sulfur, but also have high concentrations of chalcophile elements.

  1. An investigation of cathodoluminescence in albite from the A-type Georgeville granite, Nova Scotia

    SciTech Connect (OSTI)

    Dalby, Kim N.; Anderson, Alan J.; Mariano, Anthony N.; Gordon, Robert A.; Mayanovic, Robert A.; Wirth, Richard (Missouri SU); (SFX); (Simon); (GFZ)

    2009-12-15T23:59:59.000Z

    Cathodoluminescence (CL) reveals red and blue colors within single, non-turbid albite (Ab{sub 98-99}) grains from the Georgeville granite, Nova Scotia. A 720 nm X-ray excited optical luminescence (XEOL) peak characterizes red CL regions, while a 280 nm XEOL feature dominates blue CL regions. Synchrotron X-ray fluorescence results indicate that red CL and the 720 nm XEOL peak intensities relate to total Fe concentrations. The relationship between red CL and Fe content is confirmed by electron microprobe (EMPA) and laser ablation-inductively coupled mass spectrometry (LA-ICP-MS). The XEOL technique is used to exclude the Fe K-edge as the cause of red CL. X-ray absorption spectroscopy results indicate that Fe in both the red and blue CL regions is Fe{sup 3+}, and that red CL activation may relate to the Si-Al order of the feldspar and to the distribution of Fe on tetrahedral sites. The CL textures, combined with EMPA and LA-ICPMS analyses, indicate that blue CL albite (Ab98) regions contain higher concentrations of Ca, Ti, Pb and rare earth elements, and were replaced, in part, by a more Fe-rich, trace element depleted albite (Ab99) which displays red CL. Complex diffraction contrasts and amorphous deposits identified in transmission electron microscope images suggest that aqueous fluids have reacted with both red and blue CL regions. Fluid inclusion homogenization temperatures of up to 430 C provide a lower estimate of the fluid temperature.

  2. Space Heating Trends in Prince Edward Island and Nova Scotia1 Mandeep Dhaliwal and Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    . Household income and shelter costs 4. Size and condition of the house 5. Fuel prices 6. Administration Hughes Energy Research Group Department of Electrical and Computer Engineering Dalhousie University Scotia have about the same fuel mix, although there are some differences in the use of electricity

  3. Arsenic Mineralogy of Near-surface Tailings and Soils: Influences on Arsenic Mobility and Bioaccessibility in the Nova Scotia Mining Districts

    SciTech Connect (OSTI)

    Walker, S.; Parsons, M; Jamieson, H; Lanzirotti, A

    2009-01-01T23:59:59.000Z

    The mineral form, grain size and texture of As-bearing particles are important factors influencing the risk to human health associated with exposure to As-contaminated soils, sediments and mine wastes. Mining of arsenopyrite-bearing gold ores in Nova Scotia in the late 1800s and early 1900s has left a legacy of weathered, As-rich tailings deposits in more than 60 gold districts across the province. Fourteen samples of near-surface tailings and one of soil from several former gold mines frequented by the public were sieved to <150 {mu}m and characterized using conventional mineralogical techniques (XRD, microscopy and EPMA) and synchrotron micro-analysis ({mu}-X-ray diffraction, {mu}-X-ray fluorescence and {mu}-X-ray absorption spectroscopy). This study is part of a broader coordinated effort by a multi-department federal and provincial advisory committee formed to coordinate the study of ecosystem and human health risks associated with historical gold mine sites in Nova Scotia. Our study shows that (i) the mineralogy of As in weathered tailings is highly variable, with aggregates of more than one As-bearing phase common in a given sample, and (ii) major differences in As mineralogy in the tailings are mainly controlled by factors that influence the weathering history (e.g., presence or absence of mill concentrates, degree of water saturation, and abundance of relict carbonate minerals). The variable solubility of these primary and secondary As-bearing minerals influences both the environmental mobility and the bioaccessibility of As in near-surface tailings and soil samples.

  4. Effects of Soil Composition and Mineralogy on the Bioaccessibility of Arsenic from Tailings and Soil in Gold Mine Districts of Nova Scotia

    SciTech Connect (OSTI)

    Meunier, Louise; Walker, Stephen R.; Wragg, Joanna; Parsons, Michael B.; Koch, Iris; Jamieson, Heather E.; Reimer, Kenneth J. (Queens); (Brit. Geo.); (Royal); (NRC)

    2010-10-20T23:59:59.000Z

    Bioaccessibility tests and mineralogical analyses were performed on arsenic-contaminated tailings and soils from gold mine districts of Nova Scotia, Canada, to examine the links between soil composition, mineralogy, and arsenic bioaccessibility. Arsenic bioaccessibility ranges from 0.1% to 49%. A weak correlation was observed between total and bioaccessible arsenic concentrations, and the arsenic bioaccessibility was not correlated with other elements. Bulk X-ray absorption near-edge structure analysis shows arsenic in these near-surface samples is mainly in the pentavalent form, indicating that most of the arsenopyrite (As{sup 1-}) originally present in the tailings and soils has been oxidized during weathering reactions. Detailed mineralogical analyses of individual samples have identified up to seven arsenic species, the relative proportions of which appear to affect arsenic bioaccessibility. The highest arsenic bioaccessibility (up to 49%) is associated with the presence of calcium-iron arsenate. Samples containing arsenic predominantly as arsenopyrite or scorodite have the lowest bioaccessibility (<1%). Other arsenic species identified (predominantly amorphous iron arsenates and arsenic-bearing iron(oxy)hydroxides) are associated with intermediate bioaccessibility (1 to 10%). The presence of a more soluble arsenic phase, even at low concentrations, results in increased arsenic bioaccessibility from the mixed arsenic phases associated with tailings and mine-impacted soils.

  5. The alteration of metamict zircon and its role in the remobilization of high-field strength elements in the Georgeville granite, Nova Scotia

    SciTech Connect (OSTI)

    Anderson, A.J.; Wirth, R.; Thomas, R. (SFX); (GFZ)

    2008-10-02T23:59:59.000Z

    The structure and composition of metamict zircon from the Georgeville epizonal A-type granite in the Antigonish Highlands, Nova Scotia, were determined using EMPA, SXRF, LA-ICP-MS, Raman microspectroscopy and TEM data. Individual crystals of zircon are variably altered and consist of four domains distinguished on the basis of texture and composition. Domain A consists of zircon and zirconium oxide nanocrystals in an amorphous matrix and is trace-element-enriched. Replacement of domain A in proximity to microfractures produced a porous and relatively trace-element-poor zircon (domain B) with disseminated Th-U- and Y-enriched inclusions (domain C). Domain D consists of amorphous zirconium silicate that is depleted in trace elements but enriched in Hf. It is found in fractures, together with minor amounts of thorite and thorianite. It Domain D is anhydrous and free of inclusions and pore spaces and has a composition similar to highly crystalline zircon. Micro- and nanoscale element-distribution maps indicate that high-field-strength trace elements in metamict zircon were redistributed during alteration by diffusion and by dissolution-and-reprecipitation processes near microfractures and other fluid channelways. The anomalous chondrite-normalized rare-earth-element patterns and Nd isotopic signature of the granite is attributed largely to the preferential transport and deposition of rare-earth elements during subsolidus re-equilibration of metamict zircon. Hydrothermally deposited zirconium silicate (domain D) has a composition similar to that of highly crystalline Hf-rich zircon but is completely amorphous. This observation emphasizes the need to verify the structural integrity and aqueous durability of hydrothermally deposited zircon before it is used to reconstruct hydrothermal processes.

  6. Energy Security in Nova Scotia Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    on the rest of Canada for its energy needs: all major energy corridors for natural gas and petroleum products

  7. Radiological Scoping Survey of the Scotia Depot, Scotia, NY

    SciTech Connect (OSTI)

    Bailey, E. N.

    2008-02-25T23:59:59.000Z

    The objectives of the radiological scoping survey were to collect adequate field data for use in evaluating the radiological condition of Scotia Depot land areas, warehouses, and support buildings.

  8. Application to Export Electric Energy OE Docket No. EA-355 Scotia...

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

    Scotia Capital Energyto export electric energy to Canada Application to Export Electric Energy OE Docket No EA-355 Scotia Capital Energy More Documents & Publications EA-355 Scotia...

  9. On the Weddell-Scotia Confluence and the Scotia Front

    E-Print Network [OSTI]

    Smith, Stephen Gregory

    1989-01-01T23:59:59.000Z

    of the ACC is separated from that oi' the Weddell Gyre by the Weddell-Scotia, Confluence. The 4 0 CO at I o o o o t 'cu o o d\\ 0 0 IA 0 o ' o c;- j d I o. . O dp Og 'Ig 0 pg Xgpg ' ' ~ ~ ', ' 'Od Ott a! co M ut OO Ch 0 0 cd... of the continental SAP PFZ PF AAZ C)NB CZ 26 27 28 29 (30 32 34 36 38 )40 42 43 44 45 46 4 48 49 0 0 l. s (m) /' / / I. O 05 ( / / I ~ I (m) 57 S 59 61' 62 0 IOO 200 300 400 500 600 700 800 km Figure 3. Vertical section of potential temperature ('C...

  10. Nova Scotia Topographic Database 1:10000 Received: April 2009

    E-Print Network [OSTI]

    Brownstone, Rob

    Topographic Database Data Compilation Specifications Common Name Actual Name Description Building_Point BL_POINT Buildings too small to be represented as polygons. These include homes and small public buildings. There are codes to indicate usage Building_Poly BL_POLY Larger buildings. There are codes to indicate usage. Some

  11. I; Dalhousie University Department of Earth Sciences Hjliijv Nova Scotia

    E-Print Network [OSTI]

    Beaumont, Christopher

    and Analytical Methods 29 Figure 4.1 Iron conglomerate (red circle) found in the abandoned slate quarry, used Arnold #12;Chapter 5: Results 39 A) -~c B) Figure 5.2 Halifax slate whole rock thin section (JAS00403 B crystals (Po) from Halifax slate sample JAS00403 B size fraction. The anhedral grain has a garnet (Gnt) rim

  12. Does Nova Scotia have an electric future? Response to

    E-Print Network [OSTI]

    Hughes, Larry

    of a jurisdiction. If supplies of refined petroleum products such as gasoline or home heating fuel become difficult in renewables such as wind will make limited impact on coal consumption. Figure 2: NSPI's supply mix

  13. 24 November 2004 Nova Scotia Utility and Review Board

    E-Print Network [OSTI]

    Hughes, Larry

    ) This letter and its accompanying report discusses NSPI's proposed Domestic Service Tariff price increase and Review Board (UARB) for increases in all its rate classes. In the Domestic Service Tariff, NSPI has Tariff NSPI's Domestic Service Tariff applies to about 418,900 residential customers. An analysis of NSPI

  14. Efficiency Nova Scotia Releases Energy Efficiency Mobile App | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy Chinaof EnergyImpactOn July 2, 2014 in theGroup Report |ofMTechnologicalNonprofitof

  15. Freezing in the dark: Energy security and heating emergencies in Nova Scotia

    E-Print Network [OSTI]

    Hughes, Larry

    ) supply of energy at an affordable price. A "regular supply" requires: Supply Infrastructure Why coal 10PJImported coal 69PJ Natural gas 5PJ Hydro 3PJ Biomass 17PJ 0 10 20 30 40 50 60 70 80 90 100 0% Biomass Electricity Fuel Oil 60% Fuel Oil 85% Natural gas 62% Natural gas 90% Percentageofafter

  16. Assessing Success in Aquaculture from the Farmer Perspective: The Case of Nova Scotia, Canada

    E-Print Network [OSTI]

    Charles, Anthony

    Canada). Available at: http://husky1.smu.ca/~charles/ Abstract This paper explores, from the farmer industry worth $28 million (DFO, * Address correspondence to A. Charles (t.charles@smu.ca) #12

  17. MHK Projects/OpenHydro Bay of Fundy Nova Scotia CA | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:LandownersLuther, Oklahoma:Energy Information Basin Bay

  18. Soil Profile CO2 concentrations in forested and clear cut sites in Nova Scotia, Canada

    E-Print Network [OSTI]

    Beltrami, Hugo

    concentration; Forest management; Soil temperature; Soil moisture; Soil texture 1. Introduction Subsurface2 production and transport caused by the complex interactions between biotic and environmental content, and soil physical characteristics (transport factors) mainly determine the variability

  19. NOvA Groundbreaking

    SciTech Connect (OSTI)

    2009-05-07T23:59:59.000Z

    May 1, 2009, marked the groundbreaking for the NOvA neutrino experiment located in Ash River, Minnesota.

  20. Change through tourism: resident perceptions of tourism development

    E-Print Network [OSTI]

    Doh, Minsun

    2009-05-15T23:59:59.000Z

    Many view tourism as a tool for community development. Especially in the rural areas experiencing economic hardships, tourism often is considered an instrument for revitalization of a local economy helping to improve quality ...

  1. Change through tourism: resident perceptions of tourism development

    E-Print Network [OSTI]

    Doh, Minsun

    2009-05-15T23:59:59.000Z

    place. The conceptual basis of this study is development and change theory and empirical findings of tourism impact research. This study provides information to assist in understanding questions related to the rural communities tourism planning process...

  2. Sustainability of Tourism in Bhutan

    E-Print Network [OSTI]

    Dorji, Tandi

    2001-01-01T23:59:59.000Z

    to rural incomes through earnings from tourist transport and portage. Tourism has also provided the impetus for the development of the service sector, including hotels, restaurants, transportation and communication. Another visible impact of tourism has... and portage. Lack of Substantive Tourism Research Base: Proper research, surveys, feedback, statistics, data collection and processing and research related to tourism development are needed for making sound policy decisions in the future. Deterioration...

  3. EA-355 Scotia Capital Energy, Inc. | 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 DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197EFindingEA-257-CEA-296-B2244 TwinEA-355 Scotia Capital

  4. MONITORING STRATIFICATION AND CURRENTS AT THE CONTINENTAL SLOPE OF THE SCOTIA SEA, ANTARCTICA

    E-Print Network [OSTI]

    Thornton, Melanie 1989-

    2011-05-02T23:59:59.000Z

    fulfillment of the requirements for the designation as UNDERGRADUATE RESEARCH SCHOLAR A Senior Scholars Thesis by MELANIE R. THORNTON MONITORING STRATIFICATION AND CURRENTS AT THE CONTINENTAL SLOPE OF THE SCOTIA SEA, ANTARCTICA Approved by... of the requirements for the designation as UNDERGRADUATE RESEARCH SCHOLAR A Senior Scholars Thesis by MELANIE R. THORNTON iii ABSTRACT Monitoring Stratification and Currents at the Continental Slope of the Scotia Sea, Antarctica. (April 2011...

  5. This project was funded by Nova Scotia Power. The views and opinions expressed in the report are those of the Do Electric Vehicles Make Carbon-Sense in Nova Scotia?

    E-Print Network [OSTI]

    Hughes, Larry

    the EPRI report, Environmental Assessment of Plug-In Hybrid Electric Vehicles, Volume 1: Nationwide Greenhouse Gas Emissions (EPRI, 2007), which determines annual emissions based on the vehicle's Utility Factor (UF), the distance driven electrically and non-electrically (i.e., with gasoline). In the EPRI

  6. Funding for the food miles project was provided through Agriculture and Agri-Food Canada's Advancing Canadian Agriculture and Agri-Food (ACAAF) Program. In Nova Scotia the program is delivered by Agri-Futures Nova Scotia.

    E-Print Network [OSTI]

    Peak, Derek

    Funding for the food miles project was provided through Agriculture and Agri-Food Canada.................................................................... 7 Energy .................................................................................. 9 Self grown? With these two questions at the fore, combing through various statistics and reports

  7. Projected impacts of climate change on species distribution in the Acadian Forest region of eastern Nova Scotia

    E-Print Network [OSTI]

    .e., hydrological cycle and earth- sun geometry. Growing degree days and mean air temperature are basedProjected impacts of climate change on species distribution in the Acadian Forest region of eastern on processing remote sensing data, mean air temperatures serves as one of several inputs to model calculation

  8. LE TOURISME DANS LES OASIS D'ALGERIE LE TOURISME SCIENTIFIQUE A TRAVERS LES CRATERES

    E-Print Network [OSTI]

    Boyer, Edmond

    1 LE TOURISME DANS LES OASIS D'ALGERIE LE TOURISME SCIENTIFIQUE A TRAVERS LES CRATERES, historiques, architecturaux, exotiques et autres. Les Oasis, en tant que zones singulires qui tranchent avec'excellence pour un tourisme particulier : le tourisme oasien. Les Oasis parsment le dsert saharien en Algrie

  9. NOvA First Blast

    SciTech Connect (OSTI)

    2009-07-22T23:59:59.000Z

    Blasting began at the future site of the NOvA detector facility near Ash River, Minnesota, on Monday, July 20.

  10. Nova Era | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth AmericaNorthwest Rural PubNova Alinca AgricolaNovaNova

  11. Argonne's Vilas Pol on NOVA!

    ScienceCinema (OSTI)

    None

    2013-04-19T23:59:59.000Z

    Can innovations in materials science help clean up our world? Argonne's material scientist Vilas Pol guest starred on NOVA's "Making Stuff: Cleaner," where David Pogue explored the rapidly-developing science and business of clean energy.

  12. Sustainable Tourism Development in the Greek Islands and the Role of Tourism research and Education

    E-Print Network [OSTI]

    Zaferatos, Nicholas C.

    - 643 - Sustainable Tourism Development in the Greek Islands and the Role of Tourism research of sustainable tourism. In the first part of our paper, we shall examine the tourist development features which contribute towards more sustainable development patterns in the Greek islands. Finally

  13. Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism

    E-Print Network [OSTI]

    Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism (As published Resources Many tourism businesses understand that `going green' is important. It can help reduce operating costs, a growing number of consumers are asking for green products and services, and there is growing

  14. american energy strategy: Topics by E-print Network

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

    Department of Energy's Consultation Paper Nova Scotia's Renewed Energy Strategy and Climate Change Action Plan Larry Halifax, Nova Scotia, Canada larry.hughes@dal.ca http:...

  15. Climate Change and Tourism Dr David Viner

    E-Print Network [OSTI]

    Feigon, Brooke

    Climate Change and Tourism CLAT Dr David Viner Climatic Research Unit University of East Anglia d.viner@uea.ac.uk Tourism has a strong international dimension and is sensitive to any changes of climate that alter to attract visitors are likely to be vulnerable to climate change and the implementation of climate change

  16. NOvA Experiment - The Local Community

    ScienceCinema (OSTI)

    Deb Wieber

    2010-01-08T23:59:59.000Z

    Local proprietors Steve and Deb Wieber discuss the impact of the NOvA experiment on their community.

  17. NOvA Experiment - The Local Community

    SciTech Connect (OSTI)

    Deb Wieber

    2009-05-14T23:59:59.000Z

    Local proprietors Steve and Deb Wieber discuss the impact of the NOvA experiment on their community.

  18. Lesson learned from (some) recurrent novae

    E-Print Network [OSTI]

    Mason, Elena

    2013-01-01T23:59:59.000Z

    In this talk we present early decline and nebular spectra of the recurrent novae YY Dor and nova LMC 2009. These and a few other recurrent novae of the same type, share similar spectral characteristics and evolution. We will critically discuss those common features suggesting same white dwarf progenitor and post outburst phases for all of them.

  19. Vicerreitora de Calidade e Novas Tecnoloxas

    E-Print Network [OSTI]

    Fraguela, Basilio B.

    #12;#12;#12;Vicerreitora de Calidade e Novas Tecnoloxas CENTRO/DPTO./I.U./CENTRO DE GASTO.: Data: RESOLUCIN DA VICERREITORA DE CALIDADE E NOVAS TECNOLOXAS Conforme Data: Aplicacin.: Vicerreitor de Calidade e Novas Tecnoloxas A Corua, ___de ___________ de _______ SOLICITUDE DE ADQUISICIN

  20. AT Cnc: A SECOND DWARF NOVA WITH A CLASSICAL NOVA SHELL

    SciTech Connect (OSTI)

    Shara, Michael M.; Mizusawa, Trisha; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192 (United States); Wehinger, Peter [Steward Observatory, the University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Martin, Christopher D.; Neill, James D.; Forster, Karl [Department of Physics, Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, CA 91125 (United States); Seibert, Mark [Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States)

    2012-10-20T23:59:59.000Z

    We are systematically surveying all known and suspected Z Cam-type dwarf novae for classical nova shells. This survey is motivated by the discovery of the largest known classical nova shell, which surrounds the archetypal dwarf nova Z Camelopardalis. The Z Cam shell demonstrates that at least some dwarf novae must have undergone classical nova eruptions in the past, and that at least some classical novae become dwarf novae long after their nova thermonuclear outbursts, in accord with the hibernation scenario of cataclysmic binaries. Here we report the detection of a fragmented 'shell', 3 arcmin in diameter, surrounding the dwarf nova AT Cancri. This second discovery demonstrates that nova shells surrounding Z Cam-type dwarf novae cannot be very rare. The shell geometry is suggestive of bipolar, conical ejection seen nearly pole-on. A spectrum of the brightest AT Cnc shell knot is similar to that of the ejecta of the classical nova GK Per, and of Z Cam, dominated by [N II] emission. Galaxy Evolution Explorer FUV imagery reveals a similar-sized, FUV-emitting shell. We determine a distance of 460 pc to AT Cnc, and an upper limit to its ejecta mass of {approx}5 Multiplication-Sign 10{sup -5} M {sub Sun }, typical of classical novae.

  1. Radiation from Dwarf Nova Discs

    E-Print Network [OSTI]

    Irit Idan; Jean-Pierre Lasota; Jean-Marie Hameury; Giora Shaviv

    1998-06-04T23:59:59.000Z

    We use the Shaviv and Wehrse (1991) code to model the vertical structure and the emission properties of quiescent dwarf nova discs. We find that in the case of HT Cas the quiescent disc must be optically thin, in contradiction with the requirements of the standard disc instability model. We find a viscosity parameter alpha > 1. Although this is much less than values (~ 100) obtained in isothermal slab models it is not consistent with the accretion disc model assumptions.

  2. Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism

    E-Print Network [OSTI]

    Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism (As published that `going green' is important. It can help reduce operating costs, a growing number of consumers are asking for green products and services, and there is growing evidence that if we do not change how we do certain

  3. NUCLEAR THERMOMETERS FOR CLASSICAL NOVAE

    SciTech Connect (OSTI)

    Downen, Lori N.; Iliadis, Christian [Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255 (United States)] [Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255 (United States); Jose, Jordi [Departament de Fisica i Enginyeria Nuclear, EUETIB, Universitat Politecnica de Catalunya, E-08036 Barcelona (Spain)] [Departament de Fisica i Enginyeria Nuclear, EUETIB, Universitat Politecnica de Catalunya, E-08036 Barcelona (Spain); Starrfield, Sumner [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404 (United States)] [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404 (United States)

    2013-01-10T23:59:59.000Z

    Classical novae are stellar explosions occurring in binary systems, consisting of a white dwarf and a main-sequence companion. Thermonuclear runaways on the surface of massive white dwarfs, consisting of oxygen and neon, are believed to reach peak temperatures of several hundred million kelvin. These temperatures are strongly correlated with the underlying white dwarf mass. The observational counterparts of such models are likely associated with outbursts that show strong spectral lines of neon in their shells (neon novae). The goals of this work are to investigate how useful elemental abundances are for constraining the peak temperatures achieved during these outbursts and determine how robust 'nova thermometers' are with respect to uncertain nuclear physics input. We present updated observed abundances in neon novae and perform a series of hydrodynamic simulations for several white dwarf masses. We find that the most useful thermometers, N/O, N/Al, O/S, S/Al, O/Na, Na/Al, O/P, and P/Al, are those with the steepest monotonic dependence on peak temperature. The sensitivity of these thermometers to thermonuclear reaction rate variations is explored using post-processing nucleosynthesis simulations. The ratios N/O, N/Al, O/Na, and Na/Al are robust, meaning they are minimally affected by uncertain rates. However, their dependence on peak temperature is relatively weak. The ratios O/S, S/Al, O/P, and P/Al reveal strong dependences on temperature and the poorly known {sup 30}P(p, {gamma}){sup 31}S rate. We compare our model predictions to neon nova observations and obtain the following estimates for the underlying white dwarf masses: 1.34-1.35 M {sub Sun} (V838 Her), 1.18-1.21 M {sub Sun} (V382 Vel), {<=}1.3 M {sub Sun} (V693 CrA), {<=}1.2 M {sub Sun} (LMC 1990 no. 1), and {<=}1.2 M {sub Sun} (QU Vul).

  4. NOVA Making Stuff Season 2

    SciTech Connect (OSTI)

    Leombruni, Lisa; Paulsen, Christine Andrews

    2014-12-12T23:59:59.000Z

    Over the course of four weeks in fall 2013, 11.7 million Americans tuned in to PBS to follow host David Pogue as he led them in search of engineering and scientific breakthroughs poised to change our world. Levitating trains, quantum computers, robotic bees, and bomb-detecting plantsthese were just a few of the cutting-edge innovations brought into the living rooms of families across the country in NOVAs four-part series, Making Stuff: Faster, Wilder, Colder, and Safer. Each of the four one-hour programs gave viewers a behind-the-scenes look at novel technologies poised to change our worldshowing them how basic research and scientific discovery can hold the keys to transforming how we live. Making Stuff Season 2 (MS2) combined true entertainment with educational value, creating a popular and engaging series that brought accessible science into the homes of millions. NOVAs goal to engage the public with such technological innovation and basic research extended beyond the broadcast series, including a variety of online, educational, and promotional activities: original online science reporting, web-only short-form videos, a new online quiz-game, social media engagement and promotion, an educational outreach toolkit for science educators to create their own makerspaces, an online community of practice, a series of nationwide Innovation Cafs, educator professional development, a suite of teacher resources, an Idealab, participation in national conferences, and specialized station relation and marketing. A summative evaluation of the MS2 project indicates that overall, these activities helped make a significant impact on the viewers, users, and participants that NOVA reached. The final evaluation conducted by Concord Evaluation Group (CEG) confidently concluded that the broadcast, website, and outreach activities were successful at achieving the projects intended impacts. CEG reported that the MS2 series and website content were successful in raising awareness and sparking interest in innovation, and increased public awareness that basic research leads to technological innovation; this interest was also sustained over a six month period. Efforts to create an online community of practice were also successful: the quality of collaboration increased, and community members felt supported while using Maker pedagogy. These findings provide clear evidence that large-scale science media projects like MS2 are an effective means of moving the needle on attitudes about and excitement for science. NOVAs broadcast audience and ratings have always indicated that a large portion of the population is interested in and engages with educational science media on a weekly basis. Yet these evaluation results provide the empirical evidence that beyond being capable of attracting, maintaining, and growing a dedicated group of citizens interested in science, these showswith their diverse content provided on a variety of media channelsare capable of sparking new interest in science, raising public awareness of the importance of science, and maintaining and growing that interest over time. In a country where approximately a quarter of the population doesnt know the earth rotates around the sun,1 roughly half still dont accept evolution,2 and about 20% dont think climate change is happening,3 the importance of these findings cannot be overstated. The success of MS2 suggests that large-scale media projects dedicated to and linked by coverage of scientific big ideas are an effective means of shifting public opinion onand improving understanding ofscience. REFERENCES 1, 2 National Science Foundation, Science and Engineering Indicators (2014). Chapter 7: Science and Technology: Public Attitudes and Understanding. 3 Leiserowitz, A., Maibach, E., Roser-Renouf, C., Feinberg, G., & Rosenthal, S. (2014) Climate change in the American mind: April, 2014. Yale University and George Mason University. New Haven, CT: Yale Project on Climate Change Communication.

  5. Defining business strategy for development of travel and tourism industry

    E-Print Network [OSTI]

    Davari, Dordaneh

    2011-01-01T23:59:59.000Z

    Many studies conducted on Travel and Tourism industry consider tourism an economic phenomenon. Providing a customer-satisfaction-based analysis, this thesis deals with both economic and social aspects. Economic data on ...

  6. Environmental Impacts of Tourism in Khao Yai National Park, Thailand

    E-Print Network [OSTI]

    Phumsathan, Sangsan

    2011-10-21T23:59:59.000Z

    Knowledge of visitor impacts is critical for sustainable tourism management in national parks. The focus of past tourism impact research on national parks is either on bio-physical impacts (conducted as recreation ecology research) or on social...

  7. Nova Biosource Fuels formerly Nova Energy Holding Inc | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth AmericaNorthwest Rural PubNova Alinca Agricola

  8. Exploring the role of forestry in tourism Leisure landscapes

    E-Print Network [OSTI]

    Exploring the role of forestry in tourism Leisure landscapes Suzanne Martin Social and Economic Research Group #12;1Leisure landscapes: exploring the role of forestry in tourism Exploring the role of forestry in tourism Leisure landscapes Suzanne Martin Social and Economic Research Group #12

  9. Tourism in Norway, and Study at Harstad University College.

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Tourism in Norway, and Study at Harstad University College. UNBC November 2009 May Kristin College Tourism in Norway #12;Harstad University College Northern Norway Harstad; aprox. 25, Norway Advanced Marketing or Travel and Tourism with e-commerce #12;Avanced Marketing 1st semester 2nd

  10. NOVA Portal: Submit VASP Jobs to Carver via the Web

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

    NOVA Portal: Submit VASP Jobs to Carver via the Web NOVA Portal: Submit VASP Jobs to Carver via the Web May 11, 2012 by Francesca Verdier (0 Comments) NOVA is an experimental web...

  11. Nova Produtiva | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth AmericaNorthwest Rural PubNova Alinca

  12. How Beneficial is Tourism? An Analysis of the Economic Impact of Tourism in Il N'gwesi, Kenya

    E-Print Network [OSTI]

    How Beneficial is Tourism? An Analysis of the Economic Impact of Tourism in Il N'gwesi, Kenya of tourism in Il N'gwesi, Kenya. Il N'gwesi is a Maasai group ranch located near Mt. Kenya which is primarily

  13. Dalhousie Medical School Cancer Researcher Seeks Biomarkers of Treatment Success HALIFAX,NOVA SCOTIA | CANADA B3H 4H7 | +1 (902) 494-2756

    E-Print Network [OSTI]

    Dellaire, Graham

    Dalhousie Medical School Cancer Researcher Seeks Biomarkers of Treatment Success HALIFAX for monitoring the effectiveness of cancer treatments. "Structures in the nucleus of every cell - known as PML. Their response to cancer therapies could tell us if treatment is working - within 24 hours, instead of weeks," he

  14. Text and slides of presentation originally presented to the Nova Scotia Utility and Review Board regarding the province's Demand Side Management program,19 April 2010.

    E-Print Network [OSTI]

    Hughes, Larry

    that affordable and available oil is becoming harder to obtain (Figure 2). Figure 2: World oil demand and prices); even offshore Newfoundland and Labrador (which meets about 26% of Atlantic Canada's crude oil demand As fuel oil prices rise, one can expect to see additional demand being put on the electrical system

  15. EIS-0339: Presidential Permit Application, GenPower 500 kV Submarine Electric Transmission Cable from Nova Scotia to New York

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) announced its intent to prepare an Environmental Impact Statement (EIS) in accordance with the National Environmental Policy Act of 1969 (NEPA) for GenPower New York, L.L.C.s (GenPower) request for a Presidential permit for a proposed international electric transmission line.

  16. A 1600-year history of the Labrador Current off Nova Scotia Received: 11 June 2002 / Accepted: 3 January 2003 / Published online: 8 April 2003

    E-Print Network [OSTI]

    Sachs, Julian P.

    is one of the two main sources for the Labrador Current, warming and melting of ice caps in that region may have affected Labrador Current properties. Before this recent warming, sea surface temperature

  17. Vincent Battesti Tourisme d'oasis

    E-Print Network [OSTI]

    Boyer, Edmond

    Vincent Battesti Tourisme d'oasis Les mirages naturels et culturels d'une rencontre ? Les Oasis, qui n'ait ressenti, leur appel, un choc ou un blouissement (Lehuraux 1934). Les oasis de Siwa les oasis sahariennes, ce n'est pas traiter de l'envahissement de populations isoles par des hordes

  18. The NOvA Technical Design Report

    SciTech Connect (OSTI)

    Ayres, D.S.; Drake, G.R.; Goodman, M.C.; Grudzinski, J.J.; Guarino, V.J.; Talaga, R.L.; Zhao, A.; /Argonne; Stamoulis, P.; Stiliaris, E.; Tzanakos, G.; Zois, M.; /Athens U. /Caltech /UCLA /Fermilab /College de France /Harvard U. /Indiana U. /Lebedev Inst. /Michigan State U. /Minnesota U., Duluth /Minnesota U.

    2007-10-08T23:59:59.000Z

    Technical Design Report (TDR) describes the preliminary design of the NOvA accelerator upgrades, NOvA detectors, detector halls and detector sites. Compared to the March 2006 and November 2006 NOvA Conceptual Design Reports (CDR), critical value engineering studies have been completed and the alternatives still active in the CDR have been narrowed to achieve a preliminary technical design ready for a Critical Decision 2 review. Many aspects of NOvA described this TDR are complete to a level far beyond a preliminary design. In particular, the access road to the NOvA Far Detector site in Minnesota has an advanced technical design at a level appropriate for a Critical Decision 3a review. Several components of the accelerator upgrade and new neutrino detectors also have advanced technical designs appropriate for a Critical Decision 3a review. Chapter 1 is an Executive Summary with a short description of the NOvA project. Chapter 2 describes how the Fermilab NuMI beam will provide a narrow band beam of neutrinos for NOvA. Chapter 3 gives an updated overview of the scientific basis for the NOvA experiment, focusing on the primary goal to extend the search for {nu}{sub {mu}} {yields} {nu}{sub e} oscillations and measure the sin{sup 2}(2{theta}{sub 13}) parameter. This parameter has not been measured in any previous experiment and NOvA would extend the search by about an order of magnitude beyond the current limit. A secondary goal is to measure the dominant mode oscillation parameters, sin{sup 2}(2{theta}{sub 23}) and {Delta}m{sub 32}{sup 2} to a more precise level than previous experiments. Additional physics goals for NOvA are also discussed. Chapter 4 describes the Scientific Design Criteria which the Fermilab accelerator complex, NOvA detectors and NOvA detector sites must satisfy to meet the physics goals discussed in Chapter 3. Chapter 5 is an overview of the NOvA project. The changes in the design relative to the NOvA CDR are discussed. Chapter 6 summarizes the NOvA design performance relative to the Design Criteria set out in Chapter 4. Chapter 7 presents the Work Breakdown Structure dictionary at Level 3 and the Milestone dictionary. Chapters 8 through 17 then take each Level 2 WBS element of the NOvA project and present each part of the design in more detail than the overview given in Chapter 5. Specific technical design criteria are delineated for each part of the project in addition to the scientific design criteria outlined in Chapter 4. Changes in the design since the NOvA CDR are discussed in detail. The work remaining to bring each part of this preliminary design to a final design is outlined. Appendix A is a guide to other NOvA Project documentation with links to those documents.

  19. Justice and Fairness in Tourism: A Grounded Theory Study of Cultural Justice in Quintana Roo, Mexico

    E-Print Network [OSTI]

    Camargo Ortega, Blanca Alejandra

    2012-07-16T23:59:59.000Z

    Equity and fairness in the distribution of tourism benefits and participation in tourism decision-making are key tenets of sustainable tourism. However, little attention has been paid to the study and conceptualization of ...

  20. Determinants of Success for Community-based Tourism: The Case of Floating Markets in Thailand

    E-Print Network [OSTI]

    Vajirakachorn, Thanathorn

    2012-10-19T23:59:59.000Z

    Community involvement has been promoted and studied in diverse disciplines including planning, geography, community development, and others. In the tourism field, the shift from conventional tourism toward sustainable forms of tourism which...

  1. Chinese Americans in China: Ethnicity, Transnationalism, and Roots Tourism

    E-Print Network [OSTI]

    Ueda (Maruyama), Naho

    2010-07-14T23:59:59.000Z

    to discover ethnic roots and culture. Despite the recent popularity of this type of tourism, many gaps remain in the research of roots tourism especially about its influence on ones' identity and sense of home among second generation of immigrants. Therefore...

  2. Tourism's Impact on Economic Growth and Development in Spain

    E-Print Network [OSTI]

    New Hampshire, University of

    Tourism's Impact on Economic Growth and Development in Spain Jessica Dennis #12;Spanish Civil War as a % of Spain's GDP #12;50,000,000 5,050,000,000 10,050,000,000 15,050,000,000 20,050,000,000 25,050,000,000 30 International Tourism Receipts, Foreign Direct Investment Reciepts & Remittances as % of Spain's GDP Int

  3. SUSTAINABLE HERITAGE TOURISM PLANNING IN ETHIOPIA: AN ASSESSMENT FRAMEWORK

    E-Print Network [OSTI]

    SUSTAINABLE HERITAGE TOURISM PLANNING IN ETHIOPIA: AN ASSESSMENT FRAMEWORK by Stefanie Jones B Management Project No.: 532 Title: Sustainable Heritage Tourism Planning in Ethiopia: An Assessment Framework of archaeological sites in Northern Ethiopia. The research found that the heritage sites in question had low

  4. ORIGINAL PAPER Tourism-induced deforestation outside Changbai Mountain

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ORIGINAL PAPER Tourism-induced deforestation outside Changbai Mountain Biosphere Reserve, northeast the reserve border. · Objectives In this paper, deforestation processes are studied for two forestry severe deforestation, and more gains in cultivated and developed land than Lushuihe. The booming tourism

  5. The Expanding Fireball of Nova Delphini 2013

    E-Print Network [OSTI]

    Schaefer, G H; Gies, D R; Farrington, C D; Kloppenborg, B; Chesneau, O; Monnier, J D; Ridgway, S T; Scott, N; Tallon-Bosc, I; McAlister, H A; Boyajian, T; Maestro, V; Mourard, D; Meilland, A; Nardetto, N; Stee, P; Sturmann, J; Vargas, N; Baron, F; Ireland, M; Baines, E K; Che, X; Jones, J; Richardson, N D; Roettenbacher, R M; Sturmann, L; Turner, N H; Tuthill, P; van Belle, G; von Braun, K; Zavala, R T; Banerjee, D P K; Ashok, N M; Joshi, V; Becker, J; Muirhead, P S

    2015-01-01T23:59:59.000Z

    A classical nova occurs when material accreting onto the surface of a white dwarf in a close binary system ignites in a thermonuclear runaway. Complex structures observed in the ejecta at late stages could result from interactions with the companion during the common envelope phase. Alternatively, the explosion could be intrinsically bipolar, resulting from a localized ignition on the surface of the white dwarf or as a consequence of rotational distortion. Studying the structure of novae during the earliest phases is challenging because of the high spatial resolution needed to measure their small sizes. Here we report near-infrared interferometric measurements of the angular size of Nova Delphini 2013, starting from one day after the explosion and continuing with extensive time coverage during the first 43 days. Changes in the apparent expansion rate can be explained by an explosion model consisting of an optically thick core surrounded by a diffuse envelope. The optical depth of the ejected material changes ...

  6. NUCLEAR MIXING METERS FOR CLASSICAL NOVAE

    SciTech Connect (OSTI)

    Kelly, Keegan J.; Iliadis, Christian; Downen, Lori; Champagne, Art [Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255 (United States); Jos, Jordi [Departament de Fsica i Enginyeria Nuclear, EUETIB, Universitat Politcnica de Catalunya, E-08036 Barcelona (Spain)

    2013-11-10T23:59:59.000Z

    Classical novae are caused by mass transfer episodes from a main-sequence star onto a white dwarf via Roche lobe overflow. This material possesses angular momentum and forms an accretion disk around the white dwarf. Ultimately, a fraction of this material spirals in and piles up on the white dwarf surface under electron-degenerate conditions. The subsequently occurring thermonuclear runaway reaches hundreds of megakelvin and explosively ejects matter into the interstellar medium. The exact peak temperature strongly depends on the underlying white dwarf mass, the accreted mass and metallicity, and the initial white dwarf luminosity. Observations of elemental abundance enrichments in these classical nova events imply that the ejected matter consists not only of processed solar material from the main-sequence partner but also of material from the outer layers of the underlying white dwarf. This indicates that white dwarf and accreted matter mix prior to the thermonuclear runaway. The processes by which this mixing occurs require further investigation to be understood. In this work, we analyze elemental abundances ejected from hydrodynamic nova models in search of elemental abundance ratios that are useful indicators of the total amount of mixing. We identify the abundance ratios ?CNO/H, Ne/H, Mg/H, Al/H, and Si/H as useful mixing meters in ONe novae. The impact of thermonuclear reaction rate uncertainties on the mixing meters is investigated using Monte Carlo post-processing network calculations with temperature-density evolutions of all mass zones computed by the hydrodynamic models. We find that the current uncertainties in the {sup 30}P(p, ?){sup 31}S rate influence the Si/H abundance ratio, but overall the mixing meters found here are robust against nuclear physics uncertainties. A comparison of our results with observations of ONe novae provides strong constraints for classical nova models.

  7. AN EXTENDED GRID OF NOVA MODELS. III. VERY LUMINOUS, RED NOVAE

    SciTech Connect (OSTI)

    Shara, Michael M.; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024-5192 (United States); Yaron, Ofer; Prialnik, Dina; Kovetz, Attay [Department of Geophysics and Planetary Sciences, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978 (Israel)

    2010-12-10T23:59:59.000Z

    Extremely luminous, red eruptive variables like RV in M31 are being suggested as exemplars of a new class of astrophysical objects. Our greatly extended series of nova simulations shows that classical nova models can produce very red, luminous eruptions. In a poorly studied corner of three-dimensional nova parameter space (very cold, low-mass white dwarfs, accreting at very low rates) we find bona fide classical novae that are very luminous and red because they eject very slowly moving, massive envelopes. A crucial prediction of these nova models-in contrast to the predictions of merging star ('mergeburst') models-is that a hot remnant, the underlying white dwarf, will emerge after the massive ejected envelope has expanded enough to become optically thin. This blue remnant must fade on a timescale of decades-much faster than a 'mergeburst', which must fade on timescales of millennia or longer. Furthermore, the cooling nova white dwarf and its expanding ejecta must become redder in the years after eruption, while a contracting mergeburst must become hotter and bluer. We predict that red novae will always brighten to L {approx} 1000 L{sub sun} for about one year before rising to the maximum luminosity at L {approx} 10{sup 6}-10{sup 7} L{sub sun}. The maximum luminosity attainable by a nova is likely to be L {approx} 10{sup 7} L{sub sun}, corresponding to M {approx} -12. In an accompanying paper, we describe a fading, luminous blue candidate for the remnant of M31-RV; it is observed with the Hubble Space Telescope to be compatible only with the nova model.

  8. Community-based and peace-sensitive tourism: fulfilling Nepal's potential

    E-Print Network [OSTI]

    Richner, Heinz

    Community-based and peace-sensitive tourism: fulfilling Nepal's potential Tourism as a means of economic growth Tourism is one of the largest indus- tries in Nepal. According to the Nepal Tourism Board the insurgency was then largely confined to the western parts of Nepal. The Visit Nepal Year campaign in 1998

  9. NoVaS Transformations: Flexible Inference for Volatility Forecasting

    E-Print Network [OSTI]

    Politis, Dimitris N; Thomakos, Dimitrios D

    2008-01-01T23:59:59.000Z

    NoVaS Transformations: Flexible Inference for VolatilityNoVaS Transformations: Flexible Inference for Volatility

  10. NOvA: Exploring Neutrino Mysteries

    SciTech Connect (OSTI)

    Vahle, Tricia; Messier, Mark

    2012-09-06T23:59:59.000Z

    Neutrinos are a mystery to physicists. They exist in three different flavors and mass states and may be able to give hints about the origins of the matter-dominated universe. A new long-baseline experiment led by Fermilab called NOvA may provide some answers.

  11. NOvA: Exploring Neutrino Mysteries

    ScienceCinema (OSTI)

    Vahle, Tricia; Messier, Mark

    2014-08-12T23:59:59.000Z

    Neutrinos are a mystery to physicists. They exist in three different flavors and mass states and may be able to give hints about the origins of the matter-dominated universe. A new long-baseline experiment led by Fermilab called NOvA may provide some answers.

  12. CIRCUMSTELLAR SHELL FORMATION IN SYMBIOTIC RECURRENT NOVAE

    SciTech Connect (OSTI)

    Moore, Kevin; Bildsten, Lars [Department of Physics, Broida Hall, University of California, Santa Barbara, CA 93106 (United States)

    2012-12-20T23:59:59.000Z

    We present models of spherically symmetric recurrent nova shells interacting with circumstellar material (CSM) in a symbiotic system composed of a red giant (RG) expelling a wind and a white dwarf accreting from this material. Recurrent nova eruptions periodically eject material at high velocities ({approx}> 10{sup 3} km s{sup -1}) into the RG wind profile, creating a decelerating shock wave as CSM is swept up. High CSM densities cause the shocked wind and ejecta to have very short cooling times of days to weeks. Thus, the late-time evolution of the shell is determined by momentum conservation instead of energy conservation. We compute and show evolutionary tracks of shell deceleration, as well as post-shock structure. After sweeping up all the RG wind, the shell coasts at a velocity {approx}100 km s{sup -1}, depending on system parameters. These velocities are similar to those measured in blueshifted CSM from the symbiotic nova RS Oph, as well as a few Type Ia supernovae that show evidence of CSM, such as 2006X, 2007le, and PTF 11kx. Supernovae occurring in such systems may not show CSM interaction until the inner nova shell gets hit by the supernova ejecta, days to months after the explosion.

  13. OGLE Atlas of Classical Novae I. Galactic Bulge Objects

    E-Print Network [OSTI]

    Mroz, P; Poleski, R; Soszynski, I; Szymanski, M K; Pietrzynski, G; Wyrzykowski, L; Ulaczyk, K; Kozlowski, S; Pietrukowicz, P; Skowron, J

    2015-01-01T23:59:59.000Z

    Classical novae eruptions are possible sources of lithium formation and gamma-rays emission. The remnant systems of novae eruptions can also become Type Ia supernovae. The contribution of novae to these phenomena depends on nova rates that are not well established for the Galaxy. Here, we directly measure the Galactic bulge nova rate of $13.9 \\pm 2.6$ yr$^{-1}$. This measurement is much more accurate than any previous measurement of this kind thanks to multiple years of bulge monitoring by the OGLE survey. Our sample consists of 39 novae eruptions, $\\sim$1/3 of which are OGLE-based discoveries. The long-term monitoring allows us to not only measure the nova rate but also to study in detail the light curves of 39 eruptions and over 80 post-nova candidates. We measured orbital periods for 9 post-novae and 9 novae, in 14 cases we procured the first estimates. The OGLE survey is very sensitive to the frequently erupting recurrent novae. We did not found any object similar to M31 2008-12a, which erupts once a year...

  14. Very high energy gamma-ray follow-up observations of novae and dwarf novae with the MAGIC telescopes

    E-Print Network [OSTI]

    Sitarek, J; Lopez-Coto, R; Wilhelmi, E de Ona; Desiante, R; Longo, F; Hays, E

    2015-01-01T23:59:59.000Z

    In the last few years the Fermi -LAT instrument has detected GeV gamma-ray emission from a few novae. Such GeV emission can be interpreted in terms of an inverse Compton process of electrons accelerated in a shock. It is expected that hadrons can be accelerated in the same conditions, but reaching much higher energies. They can produce a second component in the gamma-ray spectrum at TeV energies. We performed follow-up observations of selected novae and dwarf novae in a search of the second component in the gamma-ray spectrum. This can shed light on the acceleration process of leptons and hadrons in nova explosions. We have performed observations with the MAGIC telescopes of 3 sources, a symbiotic nova YY Her, a dwarf nova ASASSN-13ax and a classical nova V339 Del shortly after their outbursts.

  15. SDSU General Catalog 2011-2012 399 Recreation and Tourism

    E-Print Network [OSTI]

    Gallo, Linda C.

    in outdoor resource management. Emphasis in recreation systems management. Emphasis in sustainable tourism management. Minor in recreation. The Major A commitment to working with people to enhance the quality. Recreation systems management stresses the effective organiza- tion, administration, and supervision

  16. 404 SDSU General Catalog 2012-2013 Recreation and Tourism

    E-Print Network [OSTI]

    Gallo, Linda C.

    in outdoor resource management. Emphasis in recreation systems management. Emphasis in sustainable tourism management. Minor in recreation. The Major A commitment to working with people to enhance the quality. Recreation systems management stresses the effective organiza- tion, administration, and supervision

  17. SALT observations of southern post-novae

    E-Print Network [OSTI]

    Tomov, T; Mikolajewski, M; Ilkiewicz, K

    2015-01-01T23:59:59.000Z

    We report on recent optical observations of the stellar and the nebular remnants of 22 southern post-novae. In this study, for each of our targets, we obtained and analysed long-slit spectra in the spectral range 3500-6600 A and in H$\\alpha$+NII narrow-band images. The changes in the emission lines' equivalent widths with the time since the outburst agree with earlier published results of other authors. We estimated an average value $\\alpha$=2.37 for the exponent of the power law fitted to the post-novae continua. Our observations clearly show the two-component structure of the V842 Cen expanding nebulae, owing to the different velocities of the ejected matter. We discovered an expanding shell around V382 Vel with an outer diameter of about 12 arcsec.

  18. Hubble Space Telescope Observations of Novae in M49

    E-Print Network [OSTI]

    Laura Ferrarese; Patrick Cote; Andres Jordan

    2003-09-30T23:59:59.000Z

    A search for novae in M49 (NGC 4472) has been undertaken with the Hubble Space Telescope. A 55-day observing campaign in F555W (19 epochs) and F814W (five epochs) has led to the discovery of nine novae. We find that M49 may be under-abundant in slow, faint novae relative to the Milky Way and M31. Instead, the decline rates of the M49 novae are remarkably similar to those of novae in the LMC. This fact argues against a simple classification of novae in "bulge" and "disk" sub-classes. We examine the Maximum-Magnitude versus Rate of Decline (MMRD) relation for novae in M49, finding only marginal agreement with the Galactic and M31 MMRD relations. A recalibration of the Buscombe-de Vaucouleurs relation gives an absolute magnitude 15 days past maximum of M_{V,15} = -6.36+/-0.19, which is substantially brighter than previous calibrations based on Galactic novae. Monte Carlo simulations yield a global nova rate for M49 of 100{+35}{-30} per year, and a luminosity-specific nova rate in the range \

  19. The SuperNova Early Warning System

    E-Print Network [OSTI]

    K. Scholberg

    2008-03-04T23:59:59.000Z

    A core collapse in the Milky Way will produce an enormous burst of neutrinos in detectors world-wide. Such a burst has the potential to provide an early warning of a supernova's appearance. I will describe the nature of the signal, the sensitivity of current detectors, and SNEWS, the SuperNova Early Warning System, a network designed to alert astronomers as soon as possible after the detected neutrino signal.

  20. The SuperNova Early Warning System

    E-Print Network [OSTI]

    Scholberg, K

    2008-01-01T23:59:59.000Z

    A core collapse in the Milky Way will produce an enormous burst of neutrinos in detectors world-wide. Such a burst has the potential to provide an early warning of a supernova's appearance. I will describe the nature of the signal, the sensitivity of current detectors, and SNEWS, the SuperNova Early Warning System, a network designed to alert astronomers as soon as possible after the detected neutrino signal.

  1. Nova power systems: status and operating experience

    SciTech Connect (OSTI)

    Whitham, K.; Merritt, B.T.; Gritton, D.G.; Smart, A.J.; Holloway, R.W.; Oicles, J.A.

    1983-11-28T23:59:59.000Z

    This paper describes the pulse power systems that are used in these lasers; the status and the operating experiences. The pulsed power system for the Nova Laser is comprised of several distinct technology areas. The large capacitor banks for driving flashlamps that excite the laser glass is one area, the fast pulsers that drive pockels cell shutters is another area, and the contol system for the pulsed power is a third. This paper discusses the capacitor banks and control systems.

  2. Novas Descobertas sobre o Sistema Solar

    E-Print Network [OSTI]

    dos Santos, C.A.

    Novas Descobertas sobre o Sistema Solar FIS 2009 Explorando o Universo: dos Quarks aos Quasares da temperatura da Terra A forma do espectro solar (máximo de emissão no visível) também é muito energia para a Terra, a Terra está em equilíbrio radioactivo com o Sol, este é um dos fatores

  3. Pumped profiles of ammonium and chlorophyll fluorescence from the upper 120 meters of the western Gulf of Mexico and the southwest Scotia Sea

    E-Print Network [OSTI]

    Johnson, Mark Andrew

    1981-01-01T23:59:59.000Z

    the depth of the 15 isotherm and approximate centers of anticyclonic feature (Station Alpha) and cyclonic feature (Station Bravo), denoted by H and L, respectively. Stars mark deployment of the parachute drogued surface buoys tracked for diel pumped...) and chlorophyll (lower trace) and region of 50 kHz. acoustic scattering. 25 Cumulative vertical structure index for Scotia Sea pumped profile 474. 27 FI GURE PAGE 10. Temperature fine structure during pumped vertical profiles, Station Alpha, Western Gulf...

  4. Getting to know Classical Novae with Swift

    E-Print Network [OSTI]

    Osborne, Julian P

    2015-01-01T23:59:59.000Z

    Novae have been reported as transients for more than two thousand years. Their bright optical outbursts are the result of explosive nuclear burning of gas accreted from a binary companion onto a white dwarf. Novae containing a white dwarf close to the Chandrasekhar mass limit and accreting at a high rate are potentially the unknown progenitors of the type Ia supernovae used to measure the acceleration of the Universe. Swift X-ray observations have radically transformed our view of novae by providing dense monitoring throughout the outburst, revealing new phenomena in the super-soft X-rays from the still-burning white dwarf such as early extreme variability and half- to one-minute timescale quasi-periodic oscillations. The distinct evolution of this emission from the harder X-ray emission due to ejecta shocks has been clearly delineated. Soft X-ray observations allow the mass of the white dwarf, the mass burned and the mass ejected to be estimated. In combination with observations at other wavelengths, includi...

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

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

    Community Feed-in Tariff (Nova Scotia, Canada) The Community Feed-In Tariff Program (COMFIT) is designed to increase local ownership of small-scale energy projects in Nova Scotia....

  6. On the definition of stochastic -transducers1 Stavros Konstantinidis2

    E-Print Network [OSTI]

    and Computing Science Saint Mary's University Halifax, Nova Scotia B3H 3C3, Canada s.konstantinidis@smu

  7. ccpi-petra nova | netl.doe.gov

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

    ccpi-petra nova Industrial Carbon Capture and Storage Clean Coal Power Initiative Power Plant Improvement Initiative Clean Coal Technology Demonstration Program FutureGen Petra...

  8. ONLINE WINE TOURISM MARKETING EFFORTS OF WINERIES AND CONVENTION AND VISITORS BUREAUS IN TEXAS

    E-Print Network [OSTI]

    Rasch, Leslie

    2008-08-19T23:59:59.000Z

    wineries conduct online marketing of wine tourism through their own establishments as well as in a regional context. A specific focus was placed on indications of collaborative wine tourism marketing practices on winery websites. Additionally, Convention...

  9. Contribution of university-industry linkages (UILs) to tourism clusters: multiple-case studies in Thailand

    E-Print Network [OSTI]

    Prasunpangsri, Siriluk

    2013-11-26T23:59:59.000Z

    This research develops a theoretical framework explaining how University-Industry Linkages (UILs) affect the performance of tourism clusters in Thailand. Significant external and internal factors affecting Thai tourism ...

  10. Sustaining tradition through tourism : Zhan-Qi as a model for China

    E-Print Network [OSTI]

    Lin, Ching-Yi, 1964-

    1998-01-01T23:59:59.000Z

    Tourism is one of the biggest industries in the world and is expected to become the world's largest in the next century, providing major income for some countries. 1 However, for many countries, tourism comes at a high ...

  11. Farmers and ranchers in Calhoun County, TX: their land ethic and their interest in nature tourism

    E-Print Network [OSTI]

    Williams, Kimberly Lyn

    2000-01-01T23:59:59.000Z

    This paper is based on research that investigates (1) the land relationships of farmers and ranchers in Calhoun County, Texas, and (2) their opinions about, and interest in, nature tourism and/or starting a nature tourism enterprise...

  12. Hopkins Ultraviolet Telescope Observations of Nova Circini 1995 and Nova Aquilae 1995

    E-Print Network [OSTI]

    companion star undergoes a thermonuclear runaway. Accurate abundance information is important as a diagnostic of this thermonuclear runaway, and of the initial conditions which produce the runaway. Enhanced carbon, nitrogen, and oxygen (CNO) abundances are necessary in fast novae for thermonuclear runaway

  13. Explosive lithium production in the classical nova V339 Del (Nova Delphini 2013)

    E-Print Network [OSTI]

    Tajitsu, Akito; Naito, Hiroyuki; Arai, Akir; Aoki, Wako

    2015-01-01T23:59:59.000Z

    The origin of lithium (Li) and its production process have long been an unsettled question in cosmology and astrophysics. Candidates environments of Li production events or sites suggested by previous studies include big bang nucleosynthesis, interactions of energetic cosmic rays with interstellar matter, evolved low mass stars, novae, and supernova explosions. Chemical evolution models and observed stellar Li abundances suggest that at least half of the present Li abundance may have been produced in red giants, asymptotic giant branch (AGB) stars, and novae. However, no direct evidence for the supply of Li from stellar objects to the Galactic medium has yet been found. Here we report on the detection of highly blue-shifted resonance lines of the singly ionized radioactive isotope of beryllium, $^{7}$Be, in the near ultraviolet (UV) spectra of the classical nova V339 Del (Nova Delphini 2013). Spectra were obtained 38 to 48 days after the explosion. $^{7}$Be decays to form $^{7}$Li within a short time (half-li...

  14. Some electric myths Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    . Two of these illustrate some of the common misconceptions regarding Nova Scotia Power's use of coal for Nova Scotia Power's decline in coal consumption. Nova Scotia Power's demand for coal started to decline. Since the start of this century, government regulations to reduce various coal-related emissions

  15. Some electric myths Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    is responsible for Nova Scotia Power's decline in coal consumption. Nova Scotia Power's demand for coal started. Since the start of this century, government regulations to reduce various coal-related emissions Power's declining demand for coal. For example, in 2007, Nova Scotia Power produced 9,561 GWh (gigawatt

  16. Spectra Nova Technologies Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt LtdShawangunk,Southeast Colorado PowerSouthwesternCompaniesSES JumpSpectra Nova

  17. Api Nova Energia Srl | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation in Carbon Capture and SequestrationAnemoiAnokaApi Nova Energia Srl

  18. GUEST-HOST ENCOUNTERS IN DIASPORA-HERITAGE TOURISM: THE TAGLIT-BIRTHRIGHT ISRAEL MIFGASH

    E-Print Network [OSTI]

    Fraden, Seth

    understanding. A specialized form of educational travel, heritage tourism entails visits to places of historical1 GUEST-HOST ENCOUNTERS IN DIASPORA-HERITAGE TOURISM: THE TAGLIT-BIRTHRIGHT ISRAEL MIFGASH Sasson, Philadelphia PA. #12;2 GUEST-HOST ENCOUNTERS IN DIASPORA-HERITAGE TOURISM: THE TAGLIT-BIRTHRIGHT ISRAEL MIFGASH

  19. Petra Nova Project Breaks Ground on World's Largest Post-Combustion...

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

    Petra Nova Project Breaks Ground on World's Largest Post-Combustion Carbon Capture Project Petra Nova Project Breaks Ground on World's Largest Post-Combustion Carbon Capture...

  20. New findings show some Type Ia supernovae linked to novae | EurekAlert! Science News

    E-Print Network [OSTI]

    ... findings show some Type Ia supernovae linked to novae ... least some thermonuclear (Type Ia) supernovae come from a recurrent nova ... originators of other Type Ia supernovae . ...

  1. Cimpor inventa nova frmula para reduzir pegada de CO2

    E-Print Network [OSTI]

    Instituto de Sistemas e Robotica

    Cimpor inventa nova frmula para reduzir pegada de CO2 CIMENTO. A Cimpor descobriu uma nova frmula para produzir ci- mento que lhe permitir reduzir a pegada de CO 2 em 25%. Segundo as contas da as fbricas do grupo, seriam emitidos menos quatro milhes de toneladas de CO 2 por ano, o que permitiria uma

  2. Quark Nova Model for Fast Radio Bursts

    E-Print Network [OSTI]

    Zachary Shand; Amir Ouyed; Nico Koning; Rachid Ouyed

    2015-05-29T23:59:59.000Z

    FRBs are puzzling, millisecond, energetic radio transients with no discernible source; observations show no counterparts in other frequency bands. The birth of a quark star from a parent neutron star experiencing a quark nova - previously thought undetectable when born in isolation - provides a natural explanation for the emission characteristics of FRBs. The generation of unstable r-process elements in the quark nova ejecta provides millisecond exponential injection of electrons into the surrounding strong magnetic field at the parent neutron star's light cylinder via $\\beta$-decay. This radio synchrotron emission has a total duration of hundreds of milliseconds and matches the observed spectrum while reducing the inferred dispersion measure by approximately 200 cm$^{-3}$ pc. The model allows indirect measurement of neutron star magnetic fields and periods in addition to providing astronomical measurements of $\\beta$-decay chains of unstable neutron rich nuclei. Using this model, we can calculate expected FRB average energies ($\\sim$ 10$^{41}$ ergs), spectra shapes and provide a theoretical framework for determining distances.

  3. Near-Infrared and Optical Studies of the fast nova V4643 Sgr (Nova Sagittarii 2001)

    E-Print Network [OSTI]

    N. M. Ashok; D. P. K. Banerjee; W. P. Varricatt; U. S. Kamath

    2006-02-07T23:59:59.000Z

    V4643 Sagittarii or Nova Sagittarii 2001 was discovered in outburst at 7.7 mag. on 2001 February 24. Here, we present near-infrared results of this fast classical nova obtained in the early decline phase in 2001 March followed by optical observations about one month later. Subsequently we also present near-infrared spectra taken later in the nova's evolution, about four months after the outburst, when V4643 Sgr had entered the coronal phase. The spectra in the early decline phase are dominated by emission lines of the HI Brackett series and also the Paschen beta and gamma lines. We study the cause of the excitation of the the OI line at 1.128 micron and discuss the variation in its strength with time after outburst. We discuss the role of optical depth effects on the observed strengths of the hydrogen Brackett and Paschen lines and discuss possible reasons for the puzzling behavior of the Br gamma line strength and whether it is correlated with the OI 1.128 micron line behavior. An optical spectrum is presented which shows that HeII lines are the most prominent features - after HI - to be seen in early 2001 April. We present and also discuss spectra taken in 2001 June and August which prominently show coronal lines of [Si VI] and [Si VII] at 1.9641 micron and 2.4807 micron respectively.

  4. Renewable Energy in Tourism Initiative www.renewabletourism.com

    E-Print Network [OSTI]

    and analyzed a variety of future scenarios that were created to estimate greenhouse gas emissions from fossil fuels and the atmospheric concentrations of the gases. With these scenarios characterized by a rapid to tourism and the elasticity of demand that comes with high prices. Arbel and Ravid create a supply-demand

  5. Distributed computer control system in the Nova Laser Fusion Test Facility

    SciTech Connect (OSTI)

    Not Available

    1985-09-01T23:59:59.000Z

    The EE Technical Review has two purposes - to inform readers of various activities within the Electronics Engineering Department and to promote the exchange of ideas. The articles, by design, are brief summaries of EE work. The articles included in this report are as follows: Overview - Nova Control System; Centralized Computer-Based Controls for the Nova Laser Facility; Nova Pulse-Power Control System; Nova Laser Alignment Control System; Nova Beam Diagnostic System; Nova Target-Diagnostics Control System; and Nova Shot Scheduler. The 7 papers are individually abstracted.

  6. Fermilab | Web Cams | NOvA Far Detector

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

    Follow us on: Facebook Twitter NOvA Far Detector Live Webcam Detector Hall Looking Downstream This text will be replaced View this full feed on Twitter @NOvANuz Twitter Feed...

  7. SNEWS: The SuperNova Early Warning System

    E-Print Network [OSTI]

    Antonioli, P

    2004-01-01T23:59:59.000Z

    This paper provides a technical description of the SuperNova Early Warning System (SNEWS), an international network of experiments with the goal of providing an early warning of a galactic supernova.

  8. SNEWS: The SuperNova Early Warning System

    E-Print Network [OSTI]

    P. Antonioli

    2004-07-30T23:59:59.000Z

    This paper provides a technical description of the SuperNova Early Warning System (SNEWS), an international network of experiments with the goal of providing an early warning of a galactic supernova.

  9. A context to understand the influence of tourism development on a rural community

    E-Print Network [OSTI]

    Huang, Yueh-Huang

    1993-01-01T23:59:59.000Z

    to become more distinct due to tourism development. Also, through the tourism development process, some respondents suggested that residents have created an ideal image of Fredericksburg as a rural German- American community. Working together to promote... provided an impetus for the conservation of natural resources; 4. tourism has been responsible for the introduction of administration and planning which have been adopted in order to maintain the quality of the environment and to ensure the provision...

  10. Gambling tourism and image marketing: an example from Black Hawk, Colorado

    E-Print Network [OSTI]

    Yang, Xiaobing

    1998-01-01T23:59:59.000Z

    GAMBLING TOURISM AND IMAGE MARKETING: AN EXAMPLE FROM BLACK HAWK, COLORADO A Thesis by XIAOBING YANG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1998 Major Subject: Recreation, Park and Tourism Sciences GAMBLING TOURISM AND IMAGE MARKETING: AN EXAMPLE FROM BLACK HAWK, COLORADO A Thesis by XIAOBING YANG Submitted to the Office of Graduate Studies of Texas ASSAM University...

  11. Heritage Tourism and Y-12, K-25 and X-10 history

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

    Museum are making economic headway for their cities and communities promoting the idea of historical designations. A Heritage Tourism study was recently completed for the Oak Ridge...

  12. Acknowledgements: The author would like to thank his colleagues and associates for their assistance with this report.

    E-Print Network [OSTI]

    Hughes, Larry

    . All three replacement energy sources being promoted by the province face significant challenges: wind shortages and unstable energy prices. The purpose of the 2009 Energy Strategy was to help Nova Scotia meet with this report. ERG/200904 Nova Scotia's energy strategy: Energy security for Nova Scotians Response to The Nova

  13. Roadmap: Recreation, Park and Tourism Management Recreation Management Bachelor of Science

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Recreation, Park and Tourism Management Recreation Management Bachelor of Science [EH Catalog Year: 2013-2014 Page 1 of 2 | Last Updated: 20-Mar-13/JS This roadmap is a recommended semester requirement if not satisfied earlier #12;Roadmap: Recreation, Park and Tourism Management Recreation

  14. Celebrity fandom and its relationship to tourism and leisure behaviors: the case of Korean wave

    E-Print Network [OSTI]

    Lee, Soojin

    2009-05-15T23:59:59.000Z

    This dissertation research was conducted to help understand this under-researched area particularly in the field of leisure and tourism. It is argued in this study that the celebrity fandom is a novel form of leisure/tourism activity, which should...

  15. Le touriste, l'habitant et la gestion du tourisme So Paulo : caractristiques, concertation et enjeux.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Le touriste, l'habitant et la gestion du tourisme à São Paulo : caractéristiques, concertation et de la population, du tourisme et de la gestion touristique paulistanos (c'est-à-dire, de la ville de prises. Pas faux, mais vous savez aussi que ce n'est pas toujours le cas. On commence à lui donner plus d

  16. ECOLOGICAL AND ECONOMIC SUSTAINABILITY OF TROPICAL REEF SYSTEMS: ESTABLISHING SUSTAINABLE TOURISM IN THE EXUMA CAYS, BAHAMAS

    E-Print Network [OSTI]

    Sealey, Kathleen Sullivan

    for regional tourism monitoring and management, a visitor survey was conducted in Nassau, New Providence and adequate financial backing. It is now important for the Park to create a clear management plan, a strategy, ecotourism, conservation, environ-mental impacts, management planning Introduction The prominence of tourism

  17. Nova Bio Fuels Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth AmericaNorthwest Rural PubNova Alinca Agricola eNova

  18. Nova Chemicals Reliance Industries JV | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth AmericaNorthwest Rural PubNova Alinca AgricolaNova

  19. NOvA: Building a Next Generation Neutrino Experiment

    ScienceCinema (OSTI)

    Perko, John; Williams, Ron; Miller, Bill;

    2014-05-30T23:59:59.000Z

    The NOvA neutrino experiment is searching for the answers to some of the most fundamental questions of the universe. This video documents how collaboration between government research institutions like Fermilab, academia and industry can create one of the largest neutrino detectors in the world.

  20. Gamma-ray spectroscopy measurements for nuclear reactions in novae

    E-Print Network [OSTI]

    Lotay, Gavin James

    2009-01-01T23:59:59.000Z

    The 23Mg(p?)24Al and 26Al(p?)27Si astrophysical reactions are expected to be of considerable importance in the nucleosynthesis of A?20 nuclei in classical novae. Previous studies have indicated that both reactions are ...

  1. A combined ANP-delphi approach to evaluate sustainable tourism

    SciTech Connect (OSTI)

    Garcia-Melon, Monica, E-mail: mgarciam@dpi.upv.es [INGENIO (CSIC-UPV), Universitat Politecnica de Valencia, Camino de Vera s/n, 46022 Valencia (Spain); Gomez-Navarro, Tomas, E-mail: tgomez@dpi.upv.es [Depto. Proyectos Ingenieria, Universitat Politecnica de Valencia, Camino de Vera s/n 46022 Valencia (Spain); Acuna-Dutra, Silvia, E-mail: sacuna@unime.edu.ve [Universidad Metropolitana de Caracas, Caracas (Venezuela, Bolivarian Republic of)

    2012-04-15T23:59:59.000Z

    The evaluation of sustainable tourism strategies promoted by National Parks (NP) related stakeholders is a key concern for NP managers. To help them in their strategic evaluation procedures, in this paper we propose a methodology based on the Analytic Network Process and a Delphi-type judgment-ensuring procedure. The approach aims at involving stakeholders in a participatory and consensus-building process. The methodology was applied to Los Roques NP in Venezuela. The problem included three sustainable tourism strategies defined by the stakeholders: eco-efficient resorts, eco-friendly leisure activities and ecological transportation systems. Representatives of eight stakeholders participated in the methodology. 13 sustainability criteria were selected. Results provide some important insights into the overall philosophy and underlying participants' conception of what sustainable development of Los Roques NP means. This conception is broadly shared by stakeholders as they coincided in the weights of most of the criteria, which were assigned individually through the questionnaire. It is particularly noteworthy that tourists and environmentalists almost fully match in their assessments of criteria but not of the alternatives. Moreover, there is a great agreement in the final assessment. This suggests that the regular contact among the different stakeholders, i.e. tourists with inhabitants, authorities with environmentalists, tour operators with representatives of the ministry, etc. has led to a common understanding of the opportunities and threats for the NP. They all agreed that the procedure enhances participation and transparency and it is a necessary source of information and support for their decisions.

  2. PHOTOMETRIC AND SPECTROSCOPIC PROPERTIES OF NOVAE IN THE LARGE MAGELLANIC CLOUD

    SciTech Connect (OSTI)

    Shafter, A. W. [Department of Astronomy, San Diego State University, San Diego, CA 92182 (United States)

    2013-05-15T23:59:59.000Z

    The photometric and spectroscopic properties of the 43 known LMC nova candidates are summarized and reviewed. Of these, photometric data sufficient to establish decline rates are available for 29 novae, while spectroscopic data sufficient to establish the spectroscopic classes are available for 18 systems. Half of the 18 novae belong to the Fe II class, with the remaining nine belonging to either the He/N or the Fe IIb classes. As seen in previous nova studies of M31 and M33, the He/N and Fe IIb novae have on average faster photometric developments than do their Fe II counterparts. Overall, the available photometry confirms earlier studies, and shows conclusively that LMC novae have faster rates of decline than do novae in the Galaxy and M31. It appears that the increased fraction of faster, He/N and Fe IIb novae observed in the LMC compared with M31 is almost certainly the result of differences in the underlying stellar population between the two galaxies. We propose that the younger population seen in the LMC compared with M31's bulge (where most of the novae are found), produces progenitor binaries with higher average white dwarf masses. The higher mean white dwarf mass not only produces a larger fraction of fast, He/N novae compared with M31, but also results in a relatively large recurrent nova population.

  3. The recurrent nova U Scorpii - an evolutionary considerations

    E-Print Network [OSTI]

    Marek J. Sarna; Ene Ergma; Jelena Greskevits

    2005-11-30T23:59:59.000Z

    We perform evolutionary calculations of binary stars to find progenitors of systems with parameters similar to the recurrent nova U Sco. We show that a U Sco-type system may be formed starting with an initial binary system which has a low-mass carbon-oxygen white dwarf as an accretor. Since the evolutionary stage of the secondary is not well known, we calculate sequences with hydrogen-rich and helium-rich secondaries. The evolution of the binary may be divided into several observable stages as: classical nova, supersoft X-ray source with stable hydrogen shell burning, or strong wind phase. It culminates in the formation of a massive white dwarf near the Chandrasekhar mass limit. We follow the chemical evolution of the secondary as well as of the matter lost from the system, and we show that observed $^{12}$C/$^{13}$C and N/C ratios may give some information about the nature of the binary.

  4. VERITAS OBSERVATIONS OF THE NOVA IN V407 CYGNI

    SciTech Connect (OSTI)

    Aliu, E. [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States); Archambault, S. [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Arlen, T. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Aune, T.; Bouvier, A. [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Beilicke, M.; Buckley, J. H.; Bugaev, V.; Dickherber, R. [Department of Physics, Washington University, St. Louis, MO 63130 (United States); Benbow, W. [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States); Bradbury, S. M. [School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom); Byrum, K. [Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (United States); Cannon, A.; Collins-Hughes, E. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Cesarini, A.; Connolly, M. P. [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland); Ciupik, L. [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States); Cui, W. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Decerprit, G. [DESY, Platanenallee 6, 15738 Zeuthen (Germany); Duke, C., E-mail: daniel-d-gall@uiowa.edu, E-mail: kazuma-tsurusaki@uiowa.edu [Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States); and others

    2012-07-20T23:59:59.000Z

    We report on very high energy (E > 100 GeV) gamma-ray observations of V407 Cygni, a symbiotic binary that underwent a nova outburst producing 0.1-10 GeV gamma rays during 2010 March 10-26. Observations were made with the Very Energetic Radiation Imaging Telescope Array System during 2010 March 19-26 at relatively large zenith angles due to the position of V407 Cyg. An improved reconstruction technique for large zenith angle observations is presented and used to analyze the data. We do not detect V407 Cygni and place a differential upper limit on the flux at 1.6 TeV of 2.3 Multiplication-Sign 10{sup -12} erg cm{sup -2} s{sup -1} (at the 95% confidence level). When considered jointly with data from Fermi-LAT, this result places limits on the acceleration of very high energy particles in the nova.

  5. Summary of control and data acquisition systems for Nova experiments

    SciTech Connect (OSTI)

    McCauley, E.W.; Campbell, E.M.; Auerbach, J.M.; Montgomery, D.S.; Martin, V.A.; Randolph, J.E.; Shaw, J.G.; Stewart, B.L.; Stone, G.F.

    1986-04-01T23:59:59.000Z

    The Nova Laser has completed its first year of operation. During this period, emphasis has been placed on activation of the facility and of the numerous target and beam diagnostics. Two separate target chambers are in use. Nova operation is separated into two broad functions: Laser Operations and Experiments. The Operations Group provides the laser system control, operation and data acquisition and the Experiments Group provides experiment definition, diagnostic instrumentation and overall data processing. On the Operations side, VAX 11/780 computers are used to set up diagnostic operating parameters and collect data recorded by the CAMAC and CCD modules. These data are delivered in files by electronic link to the Laser Experiments and Analysis Facility (LEAF) VAX 11/785 of the Experiments Group for processing. Film data are digitized at LEAF and the film data files are also processed on the LEAF VAX.

  6. Serious leisure, participation and experience in tourism: authenticity and ritual in a renaissance festival

    E-Print Network [OSTI]

    Kim, Hyounggon

    2005-02-17T23:59:59.000Z

    the serious festival participation were reminiscent of tourism existential authenticity specified by Wang (1999) as two levels: intrapersonal authenticity (gaining one?s true self) and interpersonal authenticity (gaining true human relationship). A search...

  7. Oregon as unspoiled nature: a rhetorical criticism of Oregon's tourism campaign

    E-Print Network [OSTI]

    Loughran, Tamara Kay

    1993-01-01T23:59:59.000Z

    Oregon has suffered dislocating economic and industrial shifts for several years. Because logging and fishing provide less economic support for the state, Oregon is looking to alternative industries including tourism. This thesis examines Oregon...

  8. Cultural Tourism for Salvador, Brazil: A Viable Means of Community Economic Development

    E-Print Network [OSTI]

    Ciccone, Adrieannette

    2012-01-01T23:59:59.000Z

    least developed countries (LDCs). In 2002, global receiptscountry, and not an LDC, the region of the Northeast andshould be considered as an LDC. Tourism in Bahia Cultural

  9. THE INFLUENCE OF SOCIAL CAPITAL ON THE DEVELOPMENT OF NATURE TOURISM: A CASE STUDY FROM

    E-Print Network [OSTI]

    study from Bahia Magdalena, Mexico Project No. 451 Examining Committee: Chair: Jennifer Silver (Chair to assess the prospects for nature-based tourism. The case study is primarily based on a large-scale

  10. Architecture's grand tourism : the emergence of Prishtina within a global discipline

    E-Print Network [OSTI]

    Rushfeldt, Laura E

    2010-01-01T23:59:59.000Z

    This Thesis proposes a 2015 World's Fair in Prishtina, Kosovo, to redefine the relationship between tourists and local places. Globalization has created an explosion of world tourism; however, it has homogenized the global ...

  11. Smartphone-Mediated Tourist Experiences: Understanding the Influence of Augmented Reality (AR) Applications in Tourism

    E-Print Network [OSTI]

    Anuar, Faiz Izwan

    2013-04-25T23:59:59.000Z

    The synergy of smartphone, mobile applications (apps) and Augmented Reality (AR) technology has the potential to mediate tourism experiences to great extents. The advent of AR apps on smartphones provides a dynamic solution for tourists by helping...

  12. Development of Criteria for Evaluating Urban River Settings for Tourism-Rereation Use

    E-Print Network [OSTI]

    Gunn, C. A.; Hanna, J. W.; Parenzin, A. J.; Blumberg, F. M.

    /business development in other cities, developed physical factor criteria and identified influential action agents. Third, the researchers examined recreation, tourism, land design and planning literature for information of value to this development problem...

  13. Historic preservation and heritage tourism in Texas: an integrated approach to sustainable heritage management

    E-Print Network [OSTI]

    Al Rabady, Rama Ibrahim

    2009-05-15T23:59:59.000Z

    This study assesses the efforts of the State Historic Preservation Office in relating Historic Preservation (HP) with Heritage Tourism (HT) against principles of sustainability. It also seeks to contribute toward an integrated heritage management...

  14. The tourism industry and its link to poverty alleviation in the Dominican Republic

    E-Print Network [OSTI]

    Weiner, Angelica (Angelica G.)

    2010-01-01T23:59:59.000Z

    The Dominican Republic has an interesting juxtaposition of the largest tourism industry in the Caribbean with some of the worst social conditions in the region such as high rates of unemployment, poverty, and infant ...

  15. Tourism development, rural livelihoods, and conservation in the Okavango Delta, Botswana

    E-Print Network [OSTI]

    Mbaiwa, Joseph Elizeri

    2009-05-15T23:59:59.000Z

    This study analyzed changes in livelihoods before and after tourism development at Khwai, Mababe and Sankoyo villages in the Okavango Delta. Specifically, it analyzed how people interacted with species like giraffe (Giraffa camelopardalis), sable...

  16. SWIFT X-RAY OBSERVATIONS OF CLASSICAL NOVAE. II. THE SUPER SOFT SOURCE SAMPLE

    SciTech Connect (OSTI)

    Schwarz, Greg J. [American Astronomical Society, 2000 Florida Avenue, NW, Suite 400, Washington, DC 20009-1231 (United States); Ness, Jan-Uwe [XMM-Newton Science Operations Centre, ESAC, Apartado 78, 28691 Villanueva de la Canada, Madrid (Spain); Osborne, J. P.; Page, K. L.; Evans, P. A.; Beardmore, A. P. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Walter, Frederick M. [Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800 (United States); Andrew Helton, L. [SOFIA Science Center, USRA, NASA Ames Research Center, M.S. N211-3, Moffett Field, CA 94035 (United States); Woodward, Charles E. [Minnesota Institute of Astrophysics, 116 Church Street S.E., University of Minnesota, Minneapolis, MN 55455 (United States); Bode, Mike [Astrophysics Research Institute, Liverpool John Moores University, Birkenhead CH41 1LD (United Kingdom); Starrfield, Sumner [School of Earth and Space Exploration, Arizona State University, P.O. Box 871404, Tempe, AZ 85287-1404 (United States); Drake, Jeremy J., E-mail: Greg.Schwarz@aas.org [Smithsonian Astrophysical Observatory, 60 Garden Street, MS 3, Cambridge, MA 02138 (United States)

    2011-12-01T23:59:59.000Z

    The Swift gamma-ray burst satellite is an excellent facility for studying novae. Its rapid response time and sensitive X-ray detector provides an unparalleled opportunity to investigate the previously poorly sampled evolution of novae in the X-ray regime. This paper presents Swift observations of 52 Galactic/Magellanic Cloud novae. We included the X-Ray Telescope (0.3-10 keV) instrument count rates and the UltraViolet and Optical Telescope (1700-8000 A) filter photometry. Also included in the analysis are the publicly available pointed observations of 10 additional novae the X-ray archives. This is the largest X-ray sample of Galactic/Magellanic Cloud novae yet assembled and consists of 26 novae with Super Soft X-ray emission, 19 from Swift observations. The data set shows that the faster novae have an early hard X-ray phase that is usually missing in slower novae. The Super Soft X-ray phase occurs earlier and does not last as long in fast novae compared to slower novae. All the Swift novae with sufficient observations show that novae are highly variable with rapid variability and different periodicities. In the majority of cases, nuclear burning ceases less than three years after the outburst begins. Previous relationships, such as the nuclear burning duration versus t{sub 2} or the expansion velocity of the eject and nuclear burning duration versus the orbital period, are shown to be poorly correlated with the full sample indicating that additional factors beyond the white dwarf mass and binary separation play important roles in the evolution of a nova outburst. Finally, we confirm two optical phenomena that are correlated with strong, soft X-ray emission which can be used to further increase the efficiency of X-ray campaigns.

  17. An econometric approach to understanding the international tourism flows from Japan to Taiwan

    E-Print Network [OSTI]

    Chang, Chun-Ling

    1993-01-01T23:59:59.000Z

    that affect visitation still require further research. Recently, Japan has been identified to be the largest market for exporting tourism by many countries. From 1964, the Japanese government began simplifying the procedures of application for its citizens.... Accordingly, the Taiwanese have the advantages to develop international tourism between Japan and Taiwan. Thus, more research should be conducted in order to be more understand to the factors that influence Japanese travel decisions to Taiwan, and how...

  18. Colloque Tourisme et fait colonial au Maghreb XIXe sicles. 8-10 dcembre 2006 UTM

    E-Print Network [OSTI]

    /1000000. AGA_ África/15)3.01_M118_TOP81/03 Le tourisme au Maroc espagnol. La période du PNT (1928-1936) Cette françaises et espagnoles au Maroc sous le Protectorat », Pour une histoire du tourisme au Maghreb, XIXe joué par la destination Maroc dans le basculement qui s'opère du littoral atlantique vers le littoral

  19. THE INTER-ERUPTION TIMESCALE OF CLASSICAL NOVAE FROM EXPANSION OF THE Z CAMELOPARDALIS SHELL

    SciTech Connect (OSTI)

    Shara, Michael M.; Mizusawa, Trisha; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192 (United States); Martin, Christopher D.; Neill, James D. [Department of Physics, Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, CA 91125 (United States); Seibert, Mark [Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States)

    2012-09-10T23:59:59.000Z

    The dwarf nova Z Camelopardalis is surrounded by the largest known classical nova shell. This shell demonstrates that at least some dwarf novae must have undergone classical nova eruptions in the past, and that at least some classical novae become dwarf novae long after their nova thermonuclear outbursts. The current size of the shell, its known distance, and the largest observed nova ejection velocity set a lower limit to the time since Z Cam's last outburst of 220 years. The radius of the brightest part of Z Cam's shell is currently {approx}880 arcsec. No expansion of the radius of the brightest part of the ejecta was detected, with an upper limit of {<=}0.17 arcsec yr{sup -1}. This suggests that the last Z Cam eruption occurred {>=}5000 years ago. However, including the important effect of deceleration as the ejecta sweeps up interstellar matter in its snowplow phase reduces the lower limit to 1300 years. This is the first strong test of the prediction of nova thermonuclear runaway theory that the interoutburst times of classical novae are longer than 1000 years. The intriguing suggestion that Z Cam was a bright nova, recorded by Chinese imperial astrologers in October-November 77 B.C.E., is consistent with our measurements. If Z Cam was indeed the nova of 77 B.C.E. we predict that its ejecta are currently expanding at 85 km s{sup -1}, or 0.11 arcsec yr{sup -1}. Detection and measurement of this rate of expansion should be possible in just a few years.

  20. Thermonuclear Runaways on Accreting White Dwarfs: Models of Classical Novae Explosions

    E-Print Network [OSTI]

    Margarita Hernanz; Jordi Jose

    2000-01-11T23:59:59.000Z

    The mechanism of classical novae explosions is explained, together with some of their observational properties. The scarce but not null impact of novae in the chemical evolution of the Milky Way is analyzed, as well as their relevance for the radioactivity in the Galaxy. A special emphasis is given to the predicted gamma-ray emission from novae and its relationship with the thermonuclear model itself and its related nucleosynthesis.

  1. altered granitic rock: Topics by E-print Network

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

    22 Everglades National Park Groundwater wells Surface water monitoring locations Rock mining locations 12 Demers, Nora Egan 211 Nova Scotia Rock Garden Club Membership...

  2. GREENHOUSE GAS (GHG) INVENTORY REPORT 20102011 Dalhousie Office of Sustainability

    E-Print Network [OSTI]

    Brownstone, Rob

    Caption. LSC Solar thermal panels installed 20102011. #12;Page | 1 TableofContents Table ......................................................................................... 35 Appendix I: Nova Scotia Power Emission Factors ......

  3. f-Words and Binary Solid Codes1 Stavros Konstantinidis

    E-Print Network [OSTI]

    and Computing Science Saint Mary's University Halifax, Nova Scotia, B3H 3C3 Canada s.konstantinidis@smu.ca, jyo

  4. DISCUSSION PAPER 11 TOWARD SUSTAINABLE AND RESILIENT FISHERIES

    E-Print Network [OSTI]

    Charles, Anthony

    Mary's University, Halifax, Nova Scotia B3H3C3 Canada, t.charles@smu.ca. #12;222 limited usefulness, so

  5. ICES CM 2008/O:05 Theme Session: Governmental

    E-Print Network [OSTI]

    Charles, Anthony

    's University Halifax, Nova Scotia, Canada B3H3C3 Tel: 1-902-420-5732 tony.charles@smu.ca Not to be cited

  6. Determining exponential density and maximal encoding capabilities of a regular language

    E-Print Network [OSTI]

    , Halifax, Nova Scotia, B3H 3C3 Canada, s.konstantinidis@smu.ca, nic.santean@smu.ca Abstract. The density

  7. FORMAL DESCRIPTIONS OF CODE PROPERTIES: DECIDABILITY, COMPLEXITY, IMPLEMENTATION1

    E-Print Network [OSTI]

    's University, Halifax, Nova Scotia, B3H 3C3 Canada krystian dudzinski@hotmail.com, s.konstantinidis@smu

  8. What is a Maximal Error-Detecting Capability of a Formal Language?

    E-Print Network [OSTI]

    Department of Mathematics and Computing Science Saint Mary's University Halifax, Nova Scotia B3H 3C3 CANADA s.konstantinidis@smu

  9. Interactive Learning of Alert Signatures in High Performance Cluster System Logs

    E-Print Network [OSTI]

    Milios, Evangelos E.

    , Nova Scotia, Canada. B3H 1W5. +1-902-494-2093 {makanju, zincir, eem}@cs.dal.ca Abstract--The ability

  10. Matching and Retrieval of Distorted and Occluded Shapes Using Dynamic Programming

    E-Print Network [OSTI]

    Petrakis, Euripides G.M.

    , Dalhousie University, Halifax, Nova Scotia, Canada B3H 1W5. E-mail: eem@cs.dal.ca, URL: http://www.cs.dal.ca/~eem

  11. LABORATORY ANALYSIS OF PRESOLAR SILICATE STARDUST FROM A NOVA

    SciTech Connect (OSTI)

    Leitner, J.; Kodolanyi, J.; Hoppe, P. [Max Planck Institute for Chemistry, Particle Chemistry Department, Hahn-Meitner-Weg 1, D-55128 Mainz (Germany); Floss, C., E-mail: jan.leitner@mpic.de [Laboratory for Space Sciences and Physics Department, Washington University, One Brookings Drive, St. Louis, MO 63130 (United States)

    2012-08-01T23:59:59.000Z

    We report the major element as well as the oxygen, magnesium, and silicon isotope composition of a unique presolar silicate grain found in the fine-grained fraction of the Antarctic CR2 chondrite Graves Nunataks 95229. The grain is characterized by an extremely high {sup 17}O/{sup 16}O ratio (6.3 {+-} 0.2 Multiplication-Sign 10{sup -3}) relative to solar values, whereas its {sup 18}O/{sup 16}O ratio is solar within measurement uncertainty. It also shows enrichments in {sup 25,26}Mg and a significant excess in {sup 30}Si relative to solar system compositions, with {delta}{sup 25}Mg = 79 {+-} 21 per mille , {delta}{sup 26}Mg = 70 {+-} 20 per mille , and {delta}{sup 30}Si = 379 {+-} 92 per mille . This isotopic composition is consistent with an origin in the ejecta of a {approx}1.3-1.4 M{sub Sun} ONe nova with large contributions of material from a main-sequence companion star of roughly solar metallicity. However, many details of the stellar source remain undetermined, owing to the uncertainties of current nova nucleosynthesis models. Auger electron spectroscopic analyses identify O, Mg, Si, and Fe as the grain's major constituents. Its (Mg+Fe)/Si atomic ratios are lower than that of olivine and correspond on average to Fe-Mg-pyroxene. A complex texture and heterogeneous major element distribution within the grain attest to condensation under non-equilibrium conditions, which is consistent with the proposed nova origin.

  12. NOVA Portal: Submit VASP Jobs to Carver via the Web

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gif Directorate1,Stewardship now661NONLINEARRPSEA~ ~ . _NOVA

  13. Nova Alinca Agricola e Comercial | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth AmericaNorthwest Rural PubNova Alinca Agricola e

  14. HelioNova S L | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | Open Energy InformationHebei QindaoHeilongjiangHeishuiHelioNova S

  15. Create PDF files without this message by purchasing novaPDF printer (http://www.novapdf.com) Create PDF files without this message by purchasing novaPDF printer (http://www.novapdf.com)

    E-Print Network [OSTI]

    Barthelat, Francois

    Create PDF files without this message by purchasing novaPDF printer (http://www.novapdf.com) #12; Create PDF files without this message without this message by purchasing novaPDF printer (http://www.novapdf.com) #12

  16. Direct measurement of the $^{18}F(p,\\alpha)^{15}O$ reaction for application to nova gamma-ray emission

    E-Print Network [OSTI]

    De Srville, N; Leleux, P; Coc, A; Kiener, J; Lefebvre-Schuhl, A; Tatischeff, V; Descouvemont, P; Figuera, P; Hammache, F; Achouri, L; Orr, N; Stefan, I; Casarejos, E; Davinson, T; Robertson, D; Laird, A M; Fox, S P; Mumby-Croft, P; Vaughan, K

    2006-01-01T23:59:59.000Z

    Direct measurement of the $^{18}F(p,\\alpha)^{15}O$ reaction for application to nova gamma-ray emission

  17. A search for radioactive 26Al in the nova-like variable V4332 Sagittarii

    E-Print Network [OSTI]

    D. P. K. Banerjee; N. M. Ashok; O. Launila; C. J. Davis; W. P. Varricatt

    2004-06-21T23:59:59.000Z

    We have searched for the important radioactive isotope 26Al in the nova-like source V4332 Sgr. Recent results from gamma ray astronomy show that there is pervasive emission of the 1.809 MeV gamma ray photon, arising from the decay of 26Al to 26Mg, from all over the galactic plane. Though the sites from where this emission originates are not clearly established, novae are believed to be an important contributing source. In this context, V4332 Sgr presented a rare opportunity to observationally investigate whether novae or novae-like sources synthesize 26Al and to what extent. Strong AlO bands in the near-IR have been reported in this object recently. As molecular bands of different isotopic compositions are readily resolved spectroscopically (e.g. 12CO and 13CO), it was thought that the components of AlO associated with 26Al and stable 27Al could be detected as separate bands. Our spectra indicate that there is no strong presence of 26Al in V4332 Sgr. A reliable upper limit of 0.10 for the 26Al/27Al ratio is determined which constitutes the first observational constraint for this ratio in a potential 26Al producing source. While V4332 Sgr is not a typical nova, its outburst amplitude and light-curve behaviour bear close similarity to that of novae. Hence, although the results from V4332 Sgr cannot be directly extended to novae in general, the limit on the observed 26Al/27Al ratio could be a useful input in constraining rather uncertain nucleosynthesis models for the production of 26Al in novae/novae-like sources. By comparing the observed 26Al/27Al ratio in V4332 Sgr with that expected in classical novae it appears unlikely that the progenitor of V4332 Sgr is an Oxygen-Neon-Magnesium white dwarf.

  18. NOvA (Fermilab E929) Official Plots and Figures

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

    The NOvA collaboration, consisting of 180 researchers across 28 institutions and managed by the Fermi National Accelerator Laboratory (FNAL), is developing instruments for a neutrino-focused experiment that will attempt to answer three fundamental questions in neutrino physics: 1) Can we observe the oscillation of muon neutrinos to electron neutrinos; 2) What is the ordering of the neutrino masses; and 3) What is the symmetry between matter and antimatter? The collaboration makes various data plots and figures available. These are grouped under five headings, with brief descriptions included for each individual figure: Neutrino Spectra, Detector Overview, Theta12 Mass Hierarchy CP phase, Theta 23 Delta Msqr23, and NuSterile.

  19. NOVA-NREL Optimal Vehicle Acquisition Analysis (Brochure)

    SciTech Connect (OSTI)

    Blakley, H.

    2011-03-01T23:59:59.000Z

    Federal fleet managers face unique challenges in accomplishing their mission - meeting agency transportation needs while complying with Federal goals and mandates. Included in these challenges are a variety of statutory requirements, executive orders, and internal goals and objectives that typically focus on petroleum consumption and greenhouse gas (GHG) emissions reductions, alternative fuel vehicle (AFV) acquisitions, and alternative fuel use increases. Given the large number of mandates affecting Federal fleets and the challenges faced by all fleet managers in executing day-to-day operations, a primary challenge for agencies and other organizations is ensuring that they are as efficient as possible in using constrained fleet budgets. An NREL Optimal Vehicle Acquisition (NOVA) analysis makes use of a mathematical model with a variety of fleet-related data to create an optimal vehicle acquisition strategy for a given goal, such as petroleum or GHG reduction. The analysis can helps fleets develop a vehicle acquisition strategy that maximizes petroleum and greenhouse gas reductions.

  20. Nova DAQ, System Architecture, Data Combiner and Timing System

    SciTech Connect (OSTI)

    Biery, K.A.; Cooper, R.G.; Foulkes, S.C.; Guglielmo, G.M.; Haynes, B.W.; Kwarciany, R.; Pavlicek, F.V.; Piccoli, L.P.; Votava, M.E.V.; /Fermilab

    2007-04-01T23:59:59.000Z

    NOvA (E929) is a long baseline experiment that will search for neutrino oscillations. There will be one detector near the beam source at Fermilab, and one detector in northern Minnesota. The DAQ system for the far detector collects over-threshold hits from over 450,000 channels of scintillator readouts, sorts the time-stamped data packets and archives selected time periods of data for transmission and processing. While a simple point-to-point protocol is used for the first level of data collection, Ethernet was chosen as the fabric for the rest of the DAQ. The packet time-stamp and overall system synchronization is based on two common-view GPS trained clock oscillators, one at each site. The present design cost-effectively satisfies the experiment's moderate speed and data volume requirements.

  1. Near Infrared Observations of the novae V2491 Cygni and V597 Puppis

    E-Print Network [OSTI]

    Sachindra Naik; D. P. K. Banerjee; N. M. Ashok

    2008-12-22T23:59:59.000Z

    We present results obtained from near-infrared JHK spectroscopic observations of novae V2491 Cyg and V597 Pup in the early declining phases of their 2007 and 2008 outbursts respectively. In both objects, the spectra displayed emission lines of HI, OI, HeI and NI. In V597 Pup, the HeI lines were found to strengthen rapidly with time. Based on the observed spectral characteristics, both objects are classified as He/N novae. We have investigated the possibility of V2491 Cyg being a recurrent nova as has been suggested. By studying the temporal evolution of the line widths in V2491 Cyg it appears unlikely that the binary companion is a giant star with heavy wind as in recurrent novae of the RS Oph type. Significant deviations from that of recombination case B conditions are observed in the strengths of the HI lines. This indicates that the HI lines, in both novae, are optically thick during the span of our observations. The slope of the continuum spectra in both cases was found to have a \\lambda^-(3-3.5) dependence which deviates from a Rayleigh-Jeans spectral distribution. Both novae were detected in the post-outburst super-soft X-ray phase; V2491 Cyg being very bright in X-rays has been the target of several observations. We discuss and correlate our infrared observations with the observed X-ray properties of these novae.

  2. The {sup 30}P(p, ?){sup 31}S reaction in classical novae: progress and prospects

    SciTech Connect (OSTI)

    Wrede, C., E-mail: wrede@nscl.msu.edu [Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)

    2014-04-15T23:59:59.000Z

    The unknown thermonuclear rate of the {sup 30}P(p, ?){sup 31}S reaction at classical-nova temperatures currently prohibits the accurate modeling of nova nucleosynthesis in the A ? 30 region. This is hindering the calibration of nova thermometers based on observed O/S, S/Al, O/P, and P/Al abundance ratios in nova ejecta, the calibration of a meter to probe mixing at the core-envelope interface in novae based on the observed Si/H abundance ratio, and the identification of candidate pre-solar nova grains found in primitive meteorites based on laboratory measurements of their {sup 30}Si/{sup 28}Si isotopic ratios. Each of these diagnostics could address key questions in our understanding of classical novae if the {sup 30}P(p, ?){sup 31}S rate were known. We review progress on the determination of the {sup 30}P(p, ?){sup 31}S rate leading to a critical assessment of current interpretations of published data and prospects for future work.

  3. Devil's Bargains ? An environmental history of tourism in the Sierra Nevada . Hlne Schmutz

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    profitable trades such as farming or mining. My goal in this paper is to take up his argument and question ecology, which regards natural questions as the object of a power struggle in society. Their analysis, geography, sociology and ecology. Tourism in the Wild West has deep roots in American history, which hark

  4. Dusky dolphin (Lagenorhynchus obscurus) behavior and human interactions: implications for tourism and aquaculture

    E-Print Network [OSTI]

    Duprey, Nicholas Matthew Thomson

    2009-05-15T23:59:59.000Z

    as the study site. In Kaikoura, companies engaged in commercial cetacean tourism (For Hire Company) have permits issued by the New Zealands Department of Conservation, allowing them to take paying customers out to view and swim with wild dusky dolphins. During...

  5. August September October November December January February March April May NRRT 600 Tourism Concepts and

    E-Print Network [OSTI]

    ­ Mid August Optional internship opportunities No Thesis or Project required in Plan C Masters Business Second Eight-Week Session NRRT 671 Strategic Management for Travel and Tourism (2 credits) Graduation. Accepting applications for the 2012-2013 Cohort! No Graduate Record Examination (GRE) required. For more

  6. RPTS 616: Tourism Economics Instructor: Professor W. Douglass Shaw, Blocker Building, Room 309

    E-Print Network [OSTI]

    Shaw, W. Douglass

    recreation. It will cover the demand side for recreation, or the trip taking behavior: who and why1 RPTS 616: Tourism Economics Fall 2007 Instructor: Professor W. Douglass Shaw, Blocker Building the value of these activities, specifically, how economists manage to assign monetary values to activities

  7. Pulsed power supply for Nova Upgrade. Final report, August 1, 1991 to March 31, 1992

    SciTech Connect (OSTI)

    Bacon, J.L.; Kajs, J.P.; Walls, A.; Weldon, W.F.; Zowarka, R.C. [Univ. of Texas, Austin, TX (US). Center for Electromechanics] [Univ. of Texas, Austin, TX (US). Center for Electromechanics

    1992-12-31T23:59:59.000Z

    This report describes work carried out at the Center for Electromechanics at The University of Texas at Austin (CEM-UT). A baseline design of the Nova Upgrade has been completed by Lawrence Livermore National Laboratory. The Nova Upgrade is an 18 beamline Nd: glass laser design utilizing fully relayed 4x4 30 cm aperture segmented optical components. The laser thus consists of 288 independent beamlets nominally producing 1.5 to 2.0 MJ of 0.35 {mu}m light in a 3 to 5 ns pulse. The laser design is extremely flexible and will allow a wide range of pulses to irradiate ICF targets. This facility will demonstrate ignition/gain and the scientific feasibility of ICF for energy and defense applications. The pulsed power requirements for the Nova Upgrade are given. CEM-UT was contracted to study and develop a design for a homopolar generator/inductor (HPG/inductor) opening switch system which would satisfy the pulsed power supply requirements of the Nova Upgrade. The Nd:glass laser amplifiers used in the Nova Upgrade will be powered by light from xenon flashlamps. The pulsed power supply for the Nova Upgrade powers the xenon flashlamps. This design and study was for a power supply to drive flashlamps.

  8. Development of prototype guidelines for risk management against terror attack in the tourism industry: a Delphi study

    E-Print Network [OSTI]

    Smith, Clifford Keith

    2007-09-17T23:59:59.000Z

    The purpose of the study was to gather strategies and factors from tourism security professionals from which terrorism risk management policies can be developed. This study utilized the Delphi method in order to provide ...

  9. SWIFT X-RAY AND ULTRAVIOLET MONITORING OF THE CLASSICAL NOVA V458 VUL (NOVA VUL 2007)

    SciTech Connect (OSTI)

    Ness, J.-U. [European Space Astronomy Centre, P.O. Box 78, 28691 Villanueva de la Canada, Madrid (Spain); Drake, J. J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Beardmore, A. P.; Evans, P. A.; Osborne, J. P.; Page, K. L. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Boyd, D. [BAA VSS, 5 Silver Lane, West Challow, Wantage, OX12 9TX (United Kingdom); Bode, M. F. [Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD (United Kingdom); Brady, S. [AAVSO, 5 Melba Drive, Hudson, NH 03051 (United States); Gaensicke, B. T.; Steeghs, D. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Kitamoto, S.; Takei, D. [Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501 (Japan); Knigge, C. [School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom); Miller, I. [BAA VSS, Furzehill House, Ilston, Swansea SA2 7LE (United Kingdom); Rodriguez-Gil, P. [Isaac Newton Group, PO Ap. de Correos 321, 38700 Sta. Cruz de la Palma (Spain); Schwarz, G. [Department of Geology and Astronomy, West Chester University, West Chester, PA 19383 (United States); Staels, B. [CBA Flanders, Alan Guth Observatory, Koningshofbaan 51, Hofstade, Aalst (Belgium); Tsujimoto, M. [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802 (United States); Wesson, R. [Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)], E-mail: juness@sciops.esa.int (and others)

    2009-05-15T23:59:59.000Z

    We describe the highly variable X-ray and UV emission of V458 Vul (Nova Vul 2007), observed by Swift between 1 and 422 days after outburst. Initially bright only in the UV, V458 Vul became a variable hard X-ray source due to optically thin thermal emission at kT = 0.64 keV with an X-ray band unabsorbed luminosity of 2.3 x 10{sup 34} erg s{sup -1} during days 71-140. The X-ray spectrum at this time requires a low Fe abundance (0.2{sup +0.3} {sub -0.1} solar), consistent with a Suzaku measurement around the same time. On day 315 we find a new X-ray spectral component which can be described by a blackbody with temperature of kT = 23{sup +9} {sub -5} eV, while the previous hard X-ray component has declined by a factor of 3.8. The spectrum of this soft X-ray component resembles those typically seen in the class of supersoft sources (SSS) which suggests that the nova ejecta were starting to clear and/or that the white dwarf photosphere is shrinking to the point at which its thermal emission reaches into the X-ray band. We find a high degree of variability in the soft component with a flare rising by an order of magnitude in count rate in 0.2 days. In the following observations on days 342.4-383.6, the soft component was not seen, only to emerge again on day 397. The hard component continued to evolve, and we found an anticorrelation between the hard X-ray emission and the UV emission, yielding a Spearman rank probability of 97%. After day 397, the hard component was still present, was variable, and continued to fade at an extremely slow rate but could not be analyzed owing to pile-up contamination from the bright SSS component.

  10. Near-Infrared Studies of V1280 Sco (Nova Scorpii 2007)

    E-Print Network [OSTI]

    Ramkrishna Das; Dipankar Banerjee; Nagarhalli Ashok; Olivier Chesneau

    2008-09-26T23:59:59.000Z

    We present spectroscopic and photometric results of Nova V1280 Sco which was discovered in outburst in early 2007 February. The large number of spectra obtained of the object leads to one of the most extensive, near-infrared spectral studies of a classical nova. The spectra evolve from a P-Cygni phase to an emission-line phase and at a later stage is dominated by emission from the dust that formed in this nova. A detailed model is computed to identify and study characteristics of the spectral lines. Inferences from the model address the vexing question of which novae have the ability to form dust. It is demonstrated, and strikingly corroborated with observations, that the presence of lines in the early spectra of low-ionization species like Na and Mg - indicative of low temperature conditions - appear to be reliable indicators that dust will form in the ejecta. It is theoretically expected that mass loss during a nova outburst is a sustained process. Spectroscopic evidence for such a sustained mass loss, obtained by tracing the evolution of a P-Cygni feature in the Brackett gamma line, is presented here allowing a lower limit of 25-27 days to be set for the mass-loss duration. Photometric data recording the nova's extended 12 day climb to peak brightness after discovery is used to establish an early fireball expansion and also show that the ejection began well before maximum brightness. The JHK light curves indicate the nova had a fairly strong second outburst around 100 days after the first.

  11. Isotopic 32S/33S ratio as a diagnostic of presolar grains from novae

    E-Print Network [OSTI]

    A. Parikh; K. Wimmer; T. Faestermann; R. Hertenberger; J. Jose; H. -F. Wirth; C. Hinke; R. Krucken; D. Seiler; K. Steiger; K. Straub

    2014-09-01T23:59:59.000Z

    Measurements of sulphur isotopes in presolar grains can help to identify the astrophysical sites in which these grains were formed. A more precise thermonuclear rate of the 33S(p,gamma)34Cl reaction is required, however, to assess the diagnostic ability of sulphur isotopic ratios. We have studied the 33S(3He,d)34Cl proton-transfer reaction at 25 MeV using a high-resolution quadrupole-dipole-dipole-dipole magnetic spectrograph. Deuteron spectra were measured at ten scattering angles between 10 and 55 degrees. Twenty-four levels in 34Cl over Ex = 4.6 - 5.9 MeV were observed, including three levels for the first time. Proton spectroscopic factors were extracted for the first time for levels above the 33S+p threshold, spanning the energy range required for calculations of the thermonuclear 33S(p,gamma)34Cl rate in classical nova explosions. We have determined a new 33S(p,gamma)34Cl rate using a Monte Carlo method and have performed new hydrodynamic nova simulations to determine the impact on nova nucleosynthesis of remaining nuclear physics uncertainties in the reaction rate. We find that these uncertainties lead to a factor of less than 5 variation in the 33S(p,gamma)34Cl rate over typical nova peak temperatures, and variation in the ejected nova yields of S--Ca isotopes by less than 20%. In particular, the predicted 32S/33S ratio is 110 - 130 for the nova model considered, compared to 110 - 440 with previous rate uncertainties. As recent type II supernova models predict ratios of 130 - 200, the 32S/33S ratio may be used to distinguish between grains of nova and supernova origin.

  12. BS in GEOGRAPHY: Tourism Studies Emphasis (733725) MAP Sheet Department of Geography

    E-Print Network [OSTI]

    Olsen Jr., Dan R.

    4 Variable Hours 4.0 2.0 2.0 36.0 3.0 3.0 3.0 03.0 3.0 6.0 3.0 3.0 35.0 37.0 3.0 6.0 Variable 30.0 120: A Conceptual Framework Geog 348 Tourism: Patterns & Analysis 1.0 3.0 3.0 3.0 3.0 4.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 Complete four advanced tourism courses from the following: Bus M 241

  13. White Dwarf Heating and Subsequent Cooling in Dwarf Nova Outbursts

    E-Print Network [OSTI]

    Anthony L. Piro; Phil Arras; Lars Bildsten

    2005-03-30T23:59:59.000Z

    We follow the time dependent thermal evolution of a white dwarf (WD) undergoing sudden accretion in a dwarf nova outburst, using both simulations and analytic estimates. The post-outburst lightcurve clearly separates into early times when the WD flux is high, and late times when the flux is near the quiescent level. The break between these two regimes, occurring at a time of order the outburst duration, corresponds to a thermal diffusion wave reaching the base of the freshly accreted layer. Our principal result is that long after the outburst, the fractional flux perturbation about the quiescent flux decays as a power law with time (and {\\it not} as an exponential). We use this result to construct a simple fitting formula that yields estimates for both the quiescent flux and the accreted column, i.e. the total accreted mass divided by WD surface area. The WD mass is not well constrained by the late time lightcurve alone, but it can be inferred if the accreted mass is known from observations. We compare our work with the well-studied outburst of WZ Sge, finding that the cooling is well described by our model, giving an effective temperature $T_{\\rm eff}=14,500 {\\rm K}$ and accreted column $\\Delta y\\approx10^6 {\\rm g cm^{-2}}$, in agreement with the modeling of Godon et al. To reconcile this accreted column with the accreted mass inferred from the bolometric accretion luminosity, a large WD mass $\\gtrsim1.1M_\\odot$ is needed. Our power law result is a valuable tool for making quick estimates of the outburst properties. We show that fitting the late time lightcurve with this formula yields a predicted column within 20% of that estimated from our full numerical calculations.

  14. Classical Novae as a Probe of the Cataclysmic Variable Population

    E-Print Network [OSTI]

    Dean M. Townsley; Lars Bildsten

    2005-03-24T23:59:59.000Z

    Classical Novae (CNe) are the brightest manifestation of mass transfer onto a white dwarf in a cataclysmic variable (CV). As such, they are probes of the mass transfer rate, Mdot, and WD mass, Mwd, in these interacting binaries. Our calculations of the dependence of the CN ignition mass, Mign, on Mdot and Mwd yields the recurrence times of these explosions. We show that the observed CNe orbital period distribution is consistent with the interrupted magnetic braking evolutionary scenario, where at orbital periods Porb > 3 hr mass transfer is driven by angular momentum loss via a wind from the companion star and at Porb < 3 hr by gravitational radiation. About 50% of CNe occur in binaries accreting at Mdot ~= 10^{-9} Msun/yr with Porb = 3-4 hr, with the remaining 50% split evenly between Porb longer (higher Mdot) and shorter (lower Mdot) than this. This resolution of the relative contribution to the CN rate from different CVs tells us that 3(9)x10^5 CVs with WD mass 1.0(0.6)Msun are needed to produce one CN per year. Using the K-band specific CN rate measured in external galaxies, we find a CV birthrate of 2(4)x10^{-4}/yr per 10^{10}Lsun,K, very similar to the luminosity specific Type Ia supernova rate in elliptical galaxies. Likewise, we predict that there should be 60-180 CVs for every 10^6Lsun,K in an old stellar population, similar to the number of X-ray identified CVs in the globular cluster 47 Tuc, showing no overabundance relative to the field. Using a two-component steady state model of CV evolution we show that the fraction of CVs which are magnetic (22%) implies a birthrate of 8% relative to non-magnetic CVs, similar to the fraction of strongly magnetic field WDs. (abridged)

  15. X-ray Study of Rekindled Accretion in the Classical Nova V2491 Cygni

    E-Print Network [OSTI]

    Takei, D; Tsujimoto, M; Kitamoto, S; Drake, J J; Osborne, J P; Takahashi, H; Kinugasa, K

    2011-01-01T23:59:59.000Z

    We conducted an X-ray spectroscopic study of the classical nova V2491 Cygni using our target-of-opportunity observation data with the Suzaku and XMM-Newton satellites as well as archived data with the Swift satellite. Medium-resolution (R~10-50) spectra were obtained using the X-ray CCD spectrometers at several post-nova epochs on days 9, 29, 40, 50, and 60-150 in addition to a pre-nova interval between days -322 and -100 all relative to the time when the classical nova was spotted. We found remarkable changes in the time series of the spectra: (a) In the pre-nova phase and on day 9, the 6.7 keV emission line from Fe XXV was significantly detected. (b) On day 29, no such emission line was found. (c) On day 40, the 6.7 keV emission line emerged again. (d) On days 50 and 60-150, three emission lines at 6.4, 6.7, and 7.0 keV respectively from quasi-neutral Fe, Fe XXV, and Fe XXVI were found. Statistically significant changes of the Fe K line intensities were confirmed between day 29 and 50. Based on these phenom...

  16. The Effects of Thermonuclear Reaction Rate Variations on Nova Nucleosynthesis: A Sensitivity Study

    E-Print Network [OSTI]

    Christian Iliadis; Art Champagne; Jordi Jose; Sumner Starrfield; Paul Tupper

    2002-06-03T23:59:59.000Z

    We investigate the effects of thermonuclear reaction rate uncertainties on nova nucleosynthesis. One-zone nucleosynthesis calculations have been performed by adopting temperature-density-time profiles of the hottest hydrogen-burning zone (i.e., the region in which most of the nucleosynthesis takes place). We obtain our profiles from 7 different, recently published, hydrodynamic nova simulations covering peak temperatures in the range from Tpeak=0.145-0.418 GK. For each of these profiles, we individually varied the rates of 175 reactions within their associated errors and analyzed the resulting abundance changes of 142 isotopes in the mass range below A=40. In total, we performed 7350 nuclear reaction network calculations. We use the most recent thermonuclear reaction rate evaluations for the mass ranges A=1-20 and A=20-40. For the theoretical astrophysicist, our results indicate the extent to which nova nucleosynthesis calculations depend on presently uncertain nuclear physics input, while for the experimental nuclear physicist our results represent at least a qualitative guide for future measurements at stable and radioactive ion beam facilities. We find that present reaction rate estimates are reliable for predictions of Li, Be, C and N abundances in nova nucleosynthesis. However, rate uncertainties of several reactions have to be reduced significantly in order to predict more reliable O, F, Ne, Na, Mg, Al, Si, S, Cl and Ar abundances. Results are presented in tabular form for each adopted nova simulation.

  17. Construction of AC Motor Controllers for NOvA Experiment Upgrades

    SciTech Connect (OSTI)

    Cooley, Patrick; /Fermilab; ,

    2011-08-04T23:59:59.000Z

    I have been constructing Alternating Current (AC) motor controllers for manipulation of particle beam detectors. The capability and reliability of these motor controllers are essential to the Laboratory's mission of accurate analysis of the particle beam's position. The device is moved in and out of the beam's path by the motor controller followed by the Neutrinos at the Main Injector Off-Axis {nu}{sub e} Appearance (NOvA) Experiment further down the beam pipe. In total, I built and tested ten ac motor controllers for new beam operations in the NOvA experiment. These units will prove to be durable and provide extremely accurate beam placement for NOvA Experiment far into the future.

  18. The Impact of Nuclear Reaction Rate Uncertainties on Evolutionary Studies of the Nova Outburst

    E-Print Network [OSTI]

    W. Raphael Hix; Michael S. Smith; Anthony Mezzacappa; Sumner Starrfield; Donald L. Smith

    2000-01-27T23:59:59.000Z

    The observable consequences of a nova outburst depend sensitively on the details of the thermonuclear runaway which initiates the outburst. One of the more important sources of uncertainty is the nuclear reaction data used as input for the evolutionary calculations. A recent paper by Starrfield, Truran, Wiescher, & Sparks (1998) has demonstrated that changes in the reaction rate library used within a nova simulation have significant effects, not just on the production of individual isotopes (which can change by an order of magnitude), but on global observables such as the peak luminosity and the amount of mass ejected. We present preliminary results of systematic analyses of the impact of reaction rate uncertainties on nova nucleosynthesis.

  19. Optical and Near-Infrared spectroscopy of Nova V1494 Aquilae 1999 #2

    E-Print Network [OSTI]

    Kamath, U S; Ashok, N M; Mayya, Y D; Sahu, D K

    2005-01-01T23:59:59.000Z

    Optical and near-infrared spectroscopic observations of the fast nova V1494 Aquilae 1999 #2 covering various phases -- early decline, transition and nebular -- during the first eighteen months of its post-outburst evolution are presented in this paper. During this period, the nova evolved in the P_fe P_fe^o C_o spectral sequence. The transition from an optically thick wind to a polar blob - equatorial ring geometry is seen in the evolution of the spectral line profiles. There is evidence of density and temperature stratification in the ejecta. Physical conditions in the ejecta have been estimated based on our observations.

  20. Optical and Near-Infrared spectroscopy of Nova V1494 Aquilae 1999 #2

    E-Print Network [OSTI]

    U. S. Kamath; G. C. Anupama; N. M. Ashok; Y. D. Mayya; D. K. Sahu

    2005-06-27T23:59:59.000Z

    Optical and near-infrared spectroscopic observations of the fast nova V1494 Aquilae 1999 #2 covering various phases -- early decline, transition and nebular -- during the first eighteen months of its post-outburst evolution are presented in this paper. During this period, the nova evolved in the P_fe P_fe^o C_o spectral sequence. The transition from an optically thick wind to a polar blob - equatorial ring geometry is seen in the evolution of the spectral line profiles. There is evidence of density and temperature stratification in the ejecta. Physical conditions in the ejecta have been estimated based on our observations.

  1. Simulations of the symbiotic recurrent nova V407 Cyg. I. Accretion and shock evolutions

    E-Print Network [OSTI]

    Pan, Kuo-Chuan; Taam, Ronald E

    2015-01-01T23:59:59.000Z

    The shock interaction and evolution of nova ejecta with a wind from a red giant star in a symbiotic binary system are investigated via three-dimensional hydrodynamics simulations. We specifically model the March 2010 outburst of the symbiotic recurrent nova V407~Cygni from the quiescent phase to its eruption phase. The circumstellar density enhancement due to wind-white dwarf interaction is studied in detail. It is found that the density-enhancement efficiency depends on the ratio of the orbital speed to the red giant wind speed. Unlike another recurrent nova, RS~Ophiuchi, we do not observe a strong disk-like density enhancement, but instead observe an aspherical density distribution with $\\sim 20\\%$ higher density in the equatorial plane than at the poles. To model the 2010 outburst, we consider several physical parameters, including the red giant mass loss rate, nova eruption energy, and ejecta mass. A detailed study of the shock interaction and evolution reveals that the interaction of shocks with the red ...

  2. Quark-Novae, cosmic reionization, and early r-process element production

    E-Print Network [OSTI]

    R. Ouyed; R. E. Pudritz; P. Jaikumar

    2009-06-30T23:59:59.000Z

    We examine the case for Quark-Novae (QNe) as possible sources for the reionization and early metal enrichment of the universe. Quark-Novae are predicted to arise from the explosive collapse (and conversion) of sufficiently massive neutron stars into quark stars. A Quark-Nova (QN) can occur over a range of time scales following the supernova event. For QNe that arise days to weeks after the supernovae, we show that dual-shock that arises as the QN ejecta encounter the supernova ejecta can produce enough photons to reionize hydrogen in most of the Inter-Galactic medium (IGM) by z ~ 6. Such events can explain the large optical depth tau_e ~ 0.1 as measured by WMAP, if the clumping factor, C, of the material being ionized is smaller than 10. We suggest a way in which a normal initial mass function (IMF) for the oldest stars can be reconciled with a large optical depth as well as the mean metallicity of the early IGM post reionization. We find that QN also make a contribution to r-process element abundances for atomic numbers A > 130. We predict that the main cosmological signatures of Quark-Novae are the gamma-ray bursts that announce their birth. These will be clustered at redshifts in the range z ~ 7-8 in our model.

  3. The mass of the white dwarf in the old nova BT Mon

    E-Print Network [OSTI]

    D. A. Smith; V. S. Dhillon; T. R. Marsh

    1997-09-22T23:59:59.000Z

    We present spectrophotometry of the eclipsing old nova BT Mon (Nova Mon 1939). By detecting weak absorption features from the secondary star, we find its radial velocity semi-amplitude to be K_R = 205+/-5 km/s and its rotational velocity to be vsin i = 138+/-5 km/s. We also measure the radial velocity semi-amplitude of the primary star to be K_R = 170+/-10 km/s. From these parameters we obtain a mass of 1.04+/-0.06 M_sun for the white dwarf primary star and a mass of 0.87+/-0.06 M_sun for the G8V secondary star. The inclination of the system is found to be 82.2+/-3.2 deg and we estimate that the system lies at a distance of 1700+/-300pc. The high mass of the white dwarf and our finding that BT Mon was probably a fast nova together constitute a new piece of evidence in favour of the thermonuclear runaway model of classical nova outbursts. The emission lines are single peaked throughout the orbital cycle, showing absorption around phase 0.5, high velocity S-wave components and large phase offsets in their radial velocity curves. In each of these respects, BT Mon is similar to the SW Sex stars. We also find quasi-periodic flaring in the trailed spectra, which makes BT Mon a candidate intermediate polar.

  4. Engineering design of the Nova Laser Facility for inertial-confinement fusion

    SciTech Connect (OSTI)

    Simmons, W W; Godwin, R O; Hurley, C A; Wallerstein, E. P.; Whitham, K.; Murray, J. E.; Bliss, E. S.; Ozarski, R. G.; Summers, M. A.; Rienecker, F.; Gritton, D. G.; Holloway, F. W.; Suski, G. J.; Severyn, J. R.

    1982-01-25T23:59:59.000Z

    The design of the Nova Laser Facility for inertial confinement fusion experiments at Lawrence Livermore National Laboratory is presented from an engineering perspective. Emphasis is placed upon design-to-performance requirements as they impact the various subsystems that comprise this complex experimental facility.

  5. Design and implementation of a financial planning and tracking system for the Nova Project

    SciTech Connect (OSTI)

    Holcomb, F.

    1982-01-01T23:59:59.000Z

    The Nova project is a 185 million dollar DOE funded project to build an experimental facility to demonstrate the thermonuclear ignition of laser fusion targets. This paper describes the design and implementation considerations for the project's computerized performance measurement financial planning and tracking system and critiques its actual operation.

  6. SPECIAL COLLOQUIUM : Building a Commercial Space Launch System and the Role of Space Tourism in the Future (exceptionally on Tuesday)

    ScienceCinema (OSTI)

    None

    2011-04-25T23:59:59.000Z

    The talk will explore a little of the history of space launch systems and rocketry, will explain why commercial space tourism did not take off after Apollo, and what is happening right now with commercial space systems such as Virgin's, utilising advances in aerospace technology not exploited by conventional ground-based rocket systems. I will then explain the Virgin Galactic technology, its business plan as a US-regulated space tourism company, and the nature of its applications. I will then go on to say a little of how our system can be utilised for sub-orbital space science based on a commercialbusiness plan

  7. SPECIAL COLLOQUIUM : Building a Commercial Space Launch System and the Role of Space Tourism in the Future (exceptionally on Tuesday)

    SciTech Connect (OSTI)

    None

    2011-02-25T23:59:59.000Z

    The talk will explore a little of the history of space launch systems and rocketry, will explain why commercial space tourism did not take off after Apollo, and what is happening right now with commercial space systems such as Virgin's, utilising advances in aerospace technology not exploited by conventional ground-based rocket systems. I will then explain the Virgin Galactic technology, its business plan as a US-regulated space tourism company, and the nature of its applications. I will then go on to say a little of how our system can be utilised for sub-orbital space science based on a commercialbusiness plan

  8. A tale of two lakes: Texas tourism industry continues to deal with drought impacts

    E-Print Network [OSTI]

    Boutwell, Kathryn S.

    2013-01-01T23:59:59.000Z

    Authority Corporate Archives, W0104. A TALE OF TWO LAKES Texas tourism industry continues to deal with drought impacts Travis County and Montgomery County are separated by more than #28;#26;#25; miles, and yet they both share one all-too-familiar issue... water body, Lake Conroe dropped to #28;#27;#18; feet. Although their communities are geographically separate, two groups of residents championing the lakes set out to do quite similar things. Noticing the possible e ects of drought and falling lake...

  9. Marketing the Mountains: An Environmental History of Tourism in Rocky Mountain National Park

    E-Print Network [OSTI]

    Frank, Jerritt

    2008-09-05T23:59:59.000Z

    to understanding the ?mechanical wear? of bicycle tires upon plants, animals and the soil, as well as the impact of litter upon the soil, boating upon lakes, and the like. 11 What is lacking in this growing field, however, is the historian?s voice. At present..., tourism in Rocky Mountain National Park exerts a great deal of pressure upon its soil, plant, animal, and aquatic communities. About this there is no doubt. What is just as certain, however, is that decisions and processes of generations past continue...

  10. Extrinsic Evaluation of Web-Crawlers in Machine Translation: a Case Study on CroatianEnglish for the Tourism Domain

    E-Print Network [OSTI]

    Way, Andy

    Extrinsic Evaluation of Web-Crawlers in Machine Translation: a Case Study on Croatian case study is on Croatian to English translation in the tourism domain. Given two crawlers, we build in July 2013, and of the Croatian language, which became then an official language of the EU. Croatian

  11. Tourism Development in Aqaba and Human Sustainability International Conference, Science and Technology in Archaeology and Conservation, Rome

    E-Print Network [OSTI]

    Tourism Development in Aqaba and Human Sustainability 6th International Conference, Science. It is an important issue to compromise between the economic development of the region and the sustainability development plans. Israel's strategies aim at benefiting from regional potentialities (geophysical structure

  12. Examining the Effects of Ecotourism Involvement and Tourism Benefits on Florida Tour Operators' Conservation Contributions to Wetland Ecosystems

    E-Print Network [OSTI]

    Lin, Li-Pin

    2012-02-14T23:59:59.000Z

    on wetland ecosystems attracted relatively less academic attention than rainforests and coral reefs. Florida, listed as one of the states with the greatest share of wetland loss in the U.S. due to rapid growth in agriculture, tourism, and urban development...

  13. Underground study of the 17 O(p,? )18F reaction at Gamow energies for classical novae

    E-Print Network [OSTI]

    Scott, David Andrew

    2014-11-27T23:59:59.000Z

    Classical novae are explained as thermonuclear explosions on the surface of white dwarf stars accreting hydrogen-rich material from less evolved companions in binary star systems. These events occur frequently within our ...

  14. Gamma Ray Bursts within the Quark-Nova scenario: Precursor, prompt and afterglow phases

    E-Print Network [OSTI]

    Ouyed, Rachid; Niebergal, Brian; Staff, Jan

    2007-01-01T23:59:59.000Z

    By exploring the dynamical and thermal evolution of the iron-rich ejecta in a Quark-Nova explosion we find that the ejecta breaks up into multiple subjets. If the quark-nova occurs inside a collapsar, the interaction between these subjets and collapsar envelope, in the case of a failed and successful supernova, leads to features indicative of those observed in Gamma Ray Bursts. These features include: (i) precursor activity (optical, X-ray, gamma-ray), (ii) prompt gamma-ray emission, and (iii) afterglow emission. We discuss SN-less long duration GRBs, short hard GRBs (including association and non-association with star forming regions), dark GRBs, as well as the energetic X-ray flares detected in Swift GRBs in our model.

  15. Genetic and environmental factors affecting growth and reproduction characters of Morada Nova sheep in Northeastern Brazil

    E-Print Network [OSTI]

    Fernandes, Antonio Amaury Oria

    1985-01-01T23:59:59.000Z

    sheep was raised at the Fazenda Iracema-Sertao Central Research Unit which belongs to the "Empresa de Pesquisa Agropecuaria do Ceara" (EPACE). The Fazenda Iracema is located at Quixada, Ceara, Brazil situ- Table 3 Summary of the Experimental Morada... collected over a 6-year period (1979-1984) from the Morada Nova sheep flock (Figure 2) maintained by the Experimental Research Unit of the "Empresa de Pesquisa Agropecuaria do Ceara" (EPACE) at the Experimental Iracema Farm, Quixada, Ceara, Brazil...

  16. The enigmatic outburst of V445 Puppis - a possible Helium nova?

    E-Print Network [OSTI]

    N. M. Ashok; D. P. K. Banerjee

    2003-07-16T23:59:59.000Z

    JHK spectroscopic and photometric observations are reported for the enigmatic, nova-like, variable V445 Puppis which erupted at the end of 2000. The near-IR spectra are hydrogen-deficient and unusually rich in CI lines. The important CI lines are found to be positioned at 1.133, 1.166, 1.175, 1.189, 1.26 and 1.689 microns. Model calculations for the CI lines are done to make the identification of the lines secure. Photometric data, taken on January 2.90 UT, 2001 shortly after the outburst, show the formation of an optically thin dust shell around V445 Puppis. The temperature and upper limit for the mass of the dust shell are estimated to be 1800K and M(dust) ~ 1oe-9 M(sun) respectively . A subsequent episode of massive dust formation - indicated by the observed, deep visual dimming - is also seen in JHK images of early November 2001. V445 Puppis has shown two unusual properties for a nova i) the hydrogen-deficiency and He/C enrichment of the object as seen from optical and IR data and ii) synchrotron radio emission which was detected nearly a year after it's outburst by other workers. The strange nature of the object is discussed and it is shown that it is difficult to place it in the known categories of eruptive variables viz. novae (classical, recurrent or symbiotic); born-again AGB stars; the new class of eruptive variables like V838 Mon; and RCB/HdC stars. Tentative evidence for an accretion disk and binarity of the V445 Puppis system is presented. It is debated whether V445 Puppis is a rare Helium nova or an unique object.

  17. Photometry of the dwarf nova AW Sagittae during the 2006 November superoutburst

    E-Print Network [OSTI]

    Jeremy Shears; Roger Pickard; Tom Krajci; Gary Poyner

    2007-05-31T23:59:59.000Z

    During 2006 November an outburst of the dwarf nova AW Sge was observed using CCD photometry. This revealed 0.25 magnitude superhumps confirming it to be a superoutburst, possibly only the second confirmed such outburst of this star. The superhumps were observed for 4 days and had a stable period Psh = 0.0745(2)d, a value which is consistent with Psh measured during the 2000 superoutburst.

  18. Nova Virgem :b the story of a nineteenth-century Brazilian slave smuggler

    E-Print Network [OSTI]

    Miller, Mason Daniel

    2001-01-01T23:59:59.000Z

    HISTORICAL BACKGROUND . Thc Eighteenth Century Slave frade and British Domestic Abolition A "Judicious Mixture of Bullying 'md Bribery' Brazilian Independence and the Abolition of the Slave Trade III LEGALITIES OF ILLEGALITY British Presence on thc... , . . . 27 . . . . . 29 . . . . . 33 . . . . . 36 CHAPTER Page IV THE NOVA VIRGFM . . . 41 Background: The Pre-Ninetccnth Century Slaver. . . The Illegal Era Slave Ship Arqucacgo or Lotaqao: How Big Was this Ship? . . . . Thc Hull of the Nr...

  19. Thermal radio emission from novae & symbiotics with the Square Kilometre Array

    E-Print Network [OSTI]

    O'Brien, Tim; Chomiuk, Laura; Ribeiro, Valerio; Bode, Michael; Sokoloski, Jennifer; Woudt, Patrick

    2015-01-01T23:59:59.000Z

    The thermal radio emission of novae during outburst enables us to derive fundamental quantities such as the ejected mass, kinetic energy, and density profile of the ejecta. Recent observations with newly-upgraded facilities such as the VLA and e-MERLIN are just beginning to reveal the incredibly complex processes of mass ejection in novae (ejections appear to often proceed in multiple phases and over prolonged timescales). Symbiotic stars can also exhibit outbursts, which are sometimes accompanied by the expulsion of material in jets. However, unlike novae, the long-term thermal radio emission of symbiotics originates in the wind of the giant secondary star, which is irradiated by the hot white dwarf. The effect of the white dwarf on the giant's wind is strongly time variable, and the physical mechanism driving these variations remains a mystery (possibilities include accretion instabilities and time-variable nuclear burning on the white dwarf's surface). The exquisite sensitivity of SKA1 will enable us to su...

  20. DYNAMICAL FRAGMENTATION OF THE T PYXIDIS NOVA SHELL DURING RECURRENT ERUPTIONS

    SciTech Connect (OSTI)

    Toraskar, Jayashree; Mac Low, Mordecai-Mark; Shara, Michael M.; Zurek, David R., E-mail: toraskar@amnh.org, E-mail: mordecai@amnh.org, E-mail: mshara@amnh.org, E-mail: dzurek@amnh.org [Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York, NY 10024-5192 (United States)

    2013-05-01T23:59:59.000Z

    Hubble Space Telescope images of the ejecta surrounding the nova T Pyxidis resolve the emission into more than 2000 bright knots. We simulate the dynamical evolution of the ejecta from T Pyxidis during its multiple eruptions over the last 150 years using the adaptive mesh refinement code Ramses. We demonstrate that the observed knots are the result of Richtmyer-Meshkov gas dynamical instabilities (the equivalent of Rayleigh-Taylor instabilities in an accelerated medium). These instabilities are caused by the overrunning of the ejecta from the classical nova of 1866 by fast-moving ejecta from the six subsequent recurrent nova outbursts. Magnetic fields may play a role in determining knot scale and preventing their conductive evaporation. The model correctly predicts the observed expansion and dimming of the T Pyx ejecta as well as the knotty morphology. The model also predicts that deeper, high-resolution imagery will show filamentary structure connecting the knots. We show reprocessed Hubble Space Telescope imagery that shows the first hints of such a structure.

  1. Gamma-ray novae as probes of relativistic particle acceleration at non-relativistic shocks

    E-Print Network [OSTI]

    Metzger, Brian D; Vurm, Indrek; Hascoet, Romain; Beloborodov, Andrei M; Chomiuk, Laura

    2015-01-01T23:59:59.000Z

    The Fermi LAT discovery that classical novae produce >100 MeV gamma-rays establishes that shocks and relativistic particle acceleration are key features of these events. These shocks are likely to be radiative due to the high densities of the nova ejecta at early times coincident with the gamma-ray emission. Thermal X-rays radiated behind the shock are absorbed by neutral gas and reprocessed into optical emission, similar to Type IIn (interacting) supernovae. The ratio of gamma-ray and optical luminosities, L_gam/L_opt, thus sets a lower limit on the fraction of the shock power used to accelerate relativistic particles, e_nth. The measured values of L_gam/L_opt for two classical novae, V1324 Sco and V339 Del, constrains e_nth > 1e-2 and > 1e-3, respectively. Inverse Compton models for the gamma-ray emission are disfavored given the low electron acceleration efficiency, e_nth ~ 1e-4-1e-3, inferred from observations of Galactic cosmic rays and particle-in-cell (PIC) numerical simulations. Recent hybrid PIC simu...

  2. Beacons In the Dark: Using Novae and Supernovae to Detect Dwarf Galaxies in the Local Universe

    E-Print Network [OSTI]

    Conroy, Charlie

    2015-01-01T23:59:59.000Z

    We propose that luminous transients, including novae and supernovae, can be used to detect the faintest galaxies in the universe. Beyond a few Mpc, dwarf galaxies with stellar masses $<10^6 M_{\\odot}$ will likely be too faint and/or too low in surface brightness to be directly detected in upcoming large area ground-based photometric surveys. However, single epoch LSST photometry will be able to detect novae to distances of $\\sim30$ Mpc and SNe to Gpc-scale distances. Depending on the form of the stellar mass-halo mass relation and the underlying star formation histories of low mass dwarfs, the expected nova rates will be a few to $\\sim100$ yr$^{-1}$ and the expected SN rates (including both type Ia and core-collapse) will be $\\sim10^2-10^4$ within the observable ($4\\pi$ sr) volume. The transient rate associated with intrahalo stars will be comparably large, but these transients will be located close to bright galaxies, in contrast to the dwarfs, which should trace the underlying large scale structure of th...

  3. CHRISTOFLE SYLVIE, (2006), L'EMPREINTE ARCHITECTURALE ET URBANISTIQUE DU TOURISME DE RUNIONS ET DE CONGRS, CHAPITRE (PP. 201 224) D'UN

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    RIEUCAU ET J?R?ME LAGEISTE, PARIS, L'HARMATTAN CENTRES ET PALAIS DES CONGR?S, EMPREINTES ARCHITECTURALES TOURISME, L'Harmattan (Ed.) (2006) PP. 201 A 224" #12;divertir les congressistes et leurs accompagnants, et

  4. A deciso judicial apoiada na Nova Economia Institucional: Acertos e erros dos magistrados brasileiros no caso de reviso dos contratos de arrendamento mercantil de automveis indexados ao dlar

    E-Print Network [OSTI]

    Bertran, Maria Paula

    2007-01-01T23:59:59.000Z

    judicial apoiada na Nova Economia Institucional: Acertos ede S. Paulo FD/USP. - Graduanda em Economia pelaFaculdade de Economia, Administrao e Contabilidade da

  5. Earth System History Announcements

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Earth System History GEOL 1020 [35] Announcements The demise of the Paleozoic (extinction, Nova Scotia. #12;The Carboniferous was marked by the progressive formation of the supercontinent Pangea, there is evidence of significant cooling and drying in the sedimentologi

  6. Preparing for the peak: Energy security and Atlantic Canada

    E-Print Network [OSTI]

    Hughes, Larry

    Hydroelectricity Uranium Canada is not "energy homogenous" #12;Atlantic Canada Older housing stock Declining-Mobil) No exploration >90% exported Some coal Government and Nova Scotia Power: Yes: FERC 888/889 Slow: RPS Slower

  7. International Conference on Ocean Energy | Department of Energy

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

    on Ocean Energy International Conference on Ocean Energy November 4, 2014 1:00PM EST to November 6, 2014 10:00PM EST Halifax, Nova Scotia, Canada http:www.icoe2014canada.org...

  8. Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing

    E-Print Network [OSTI]

    Trigwell, Robert

    2011-11-24T23:59:59.000Z

    This paper describes the interpretation of the 2010 summer LIDAR observations from Dal- housie University, Nova Scotia. The GEOS-Chem global 3D chemistry transport model was used to identify the chemical and optical ...

  9. Aircraft-protection radar for use with atmospheric lidars Thomas J. Duck, Bernard Firanski, Frank D. Lind, and Dwight Sipler

    E-Print Network [OSTI]

    Duck, Thomas J.

    . Lind, and Dwight Sipler A modified X-band radar system designed to detect aircraft during atmospheric, Dalhousie Univer- sity, Halifax, Nova Scotia, Canada B3H 3J5. F. D. Lind and D. Sipler are with Haystack

  10. THE BIG PICTURE: A "FISHERY SYSTEM APPROACH"

    E-Print Network [OSTI]

    Charles, Anthony

    , and its lengthy history combined with its rather narrow definition have had a negative impact in limiting Charles Management Science / Environmental Studies Saint Mary's University Halifax, Nova Scotia B3H3C3

  11. 3, 32673299, 2003 Relative humidity and

    E-Print Network [OSTI]

    Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Institut fur Physik der Atmosphare (IPA, Sweden 3 Dalhousie University, Department of Physics and Atmospheric Science, Halifax, Nova Scotia

  12. Notices

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

    a Canadian company incorporated pursuant to the laws of Nova Scotia, and that Bear Head (USA) is a Delaware limited liability company. Both have their principal place of business...

  13. Green University Planning Committee Friday, January 18, 2013

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Solar PV proposal differs significantly from initial proposal - Motion: Solar PV Proposal to be included Cooperative, Small-scale wind (Nova Scotia), Data server farm - To be discussed with Energy Subcommittee B

  14. Teaching Humanities in Medicine: The University of Massachusetts Family Medicine Residency Program Experience

    E-Print Network [OSTI]

    Silk, Hugh; Shields, Sara

    2012-01-01T23:59:59.000Z

    Charon R. Narrative and medicine. N Eng J Med 2004;350:862-California, Irvine, College of Medicine. Acad Med. 2003;78:University Faculty of Medicine, Nova Scotia, Canada, 1992

  15. The OGLE-II event sc5_2859 a Classical Nova outburst?

    E-Print Network [OSTI]

    Afonso, C; Andersen, J; Ansari, R; Aubourg, E; Bareyre, P; Beaulieu, J P; Blanc, G; CSmith, M; Charlot, X; Coutures, C; De Kat, J; Ferlet, R; Fouqu, P; Glicenstein, J F; Goldman, B; Gould, A; Graff, D; Gros, M; Hamadache, C; Hassinski, J; Le Guillou, Laurent; Lesquoy, E; Loup, C; Magneville, C; Marquette, J B; Maurice, E; Maury, A; Milsztajn, A; Moniez, M; Palanque-Delabrouille, Nathalie; Perdereau, O; Prvt, L; Rahal, Y R; Rich, J; Spiro, M; Tisserand, P; Vidal-Madjar, A; Vigroux, L; Wagner, R M; Zylberajch, S

    2006-01-01T23:59:59.000Z

    The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Additional photometric observations from the EROS (Experience de Recherche d'Objets Sombres) survey and spectroscopic observations of the candidate star are used to test the microlensing hypothesis.The combined OGLE and EROS data provide a high quality coverage of the light curve. The colour of the sc5_2859 event is seen to change with time. A spectrum taken in 2003 exhibits a strong Halpha emission line. The additionnal data show that the OGLE-II sc5_2859 event is actually a classical nova outburst.

  16. Classical novae and type I X-ray bursts: Challenges for the 21st century

    SciTech Connect (OSTI)

    Parikh, A., E-mail: anuj.r.parikh@upc.edu; Jos, J., E-mail: jordi.jose@upc.edu; Sala, G., E-mail: gloria.sala@upc.edu [Departament de Fsica i Enginyeria Nuclear, Universitat Politcnica de Catalunya (EUETIB), E-08036 Barcelona (Spain); Institut dEstudis Espacials de Catalunya (IEEC), E-08034 Barcelona (Spain)

    2014-04-15T23:59:59.000Z

    Classical nova explosions and type I X-ray bursts are the most frequent types of thermonuclear stellar explosions in the Galaxy. Both phenomena arise from thermonuclear ignition in the envelopes of accreting compact objects in close binary star systems. Detailed observations of these events have stimulated numerous studies in theoretical astrophysics and experimental nuclear physics. We discuss observational features of these phenomena and theoretical efforts to better understand the energy production and nucleosynthesis in these explosions. We also examine and summarize studies directed at identifying nuclear physics quantities with uncertainties that significantly affect model predictions.

  17. X-Ray Spectroscopy of the Classical Nova V458 Vulpeculae with Suzaku

    E-Print Network [OSTI]

    Masahiro Tsujimoto; Dai Takei; Jeremy J. Drake; Jan-Uwe Ness; Shunji Kitamoto

    2008-10-17T23:59:59.000Z

    We conducted a target of opportunity X-ray observation of the classical nova V458 Vulpeculae 88 days after the explosion using the Suzaku satellite. With a 20 ks exposure, the X-ray Imaging Spectrometer detected X-ray emission significantly harder than typical super-soft source emission. The X-ray spectrum shows K lines from N, Ne, Mg, Si, and S, and L-series emission from Fe in highly ionized states. The spectrum can be described by a single temperature (0.64 keV) thin thermal plasma model in collisional equilibrium with a hydrogen-equivalent extinction column density of ~3e21/cm2, a flux of ~1e-12 erg/s/cm2, and a luminosity of ~6e34 erg/s in the 0.3-3.0 keV band at an assumed distance of 13 kpc. We found a hint of an enhancement of N and deficiencies of O and Fe relative to other metals. The observed X-ray properties can be interpreted as the emission arising from shocks of ejecta from an ONe-type nova.

  18. X-Ray Spectroscopy of the Classical Nova V458 Vulpeculae with Suzaku

    E-Print Network [OSTI]

    Tsujimoto, Masahiro; Drake, Jeremy J; Ness, Jan-Uwe; Kitamoto, Shunji

    2008-01-01T23:59:59.000Z

    We conducted a target of opportunity X-ray observation of the classical nova V458 Vulpeculae 88 days after the explosion using the Suzaku satellite. With a 20 ks exposure, the X-ray Imaging Spectrometer detected X-ray emission significantly harder than typical super-soft source emission. The X-ray spectrum shows K lines from N, Ne, Mg, Si, and S, and L-series emission from Fe in highly ionized states. The spectrum can be described by a single temperature (0.64 keV) thin thermal plasma model in collisional equilibrium with a hydrogen-equivalent extinction column density of ~3e21/cm2, a flux of ~1e-12 erg/s/cm2, and a luminosity of ~6e34 erg/s in the 0.3-3.0 keV band at an assumed distance of 13 kpc. We found a hint of an enhancement of N and deficiencies of O and Fe relative to other metals. The observed X-ray properties can be interpreted as the emission arising from shocks of ejecta from an ONe-type nova.

  19. Surface studies and implanted helium measurements following NOVA high-yield DT experiments

    SciTech Connect (OSTI)

    Stoyer, M.A.; Hudson, G.B.

    1997-02-18T23:59:59.000Z

    This paper presents the results of three March 6, 1996 direct-drive high-yield DT NOVA experiments and provides `proof-of-principal` results for the quantitative measurement of energetic He ions. Semiconductor quality Si wafers and an amorphous carbon wafer were exposed to NOVA high-yield implosions. Surface damage was sub-micron in general, although the surface ablation was slightly greater for the carbon wafer than for the Si wafers. Melting of a thin ({approx} 0.1{mu}) layer of Si was evident from microscopic investigation. Electron microscopy indicated melted blobs of many different metals (e.g. Al, Au, Ta, Fe alloys, Cu and even Cd) on the surfaces. The yield measured by determining the numbers of atoms of implanted {sup 4}He and {sup 3}He indicate the number of DT fusions to be 9.1({plus_minus}2.3) X 10{sup 12} and DD fusions to be 4.8({plus_minus}1.0) x 10{sup 10}, respectively. The helium DT fusion yield is slightly lower than that of the Cu activation measurement, which was 1.3({plus_minus}0.l) x 10{sup 13} DT fusions.

  20. Quasi-Coherent Oscillations in the Extreme Ultraviolet Flux of the Dwarf Nova SS Cygni

    E-Print Network [OSTI]

    Christopher W. Mauche

    1996-03-18T23:59:59.000Z

    Quasi-coherent oscillations have been detected in the extreme ultraviolet flux of the dwarf nova SS Cygni during observations with the Extreme Ultraviolet Explorer satellite of the rise and plateau phases of an anomalous outburst in 1993 August and a normal outburst in 1994 June/July. On both occasions, the oscillation turned on during the rise to outburst and persisted throughout the observation. During the 1993 outburst, the period of the oscillation fell from 9.3 s to 7.5 s over an interval of 4.4 days; during the 1994 outburst, the period fell from 8.9 s to 7.19 s (the shortest period ever observed in SS Cyg, or any other dwarf nova) within less than a day, and then rose to 8.0 s over an interval of 8.0 days. For both outbursts, the period $P$ of the oscillation was observed to correlate with the 75--120 \\AA \\ count rate $I_{\\rm EUV}$ according to $P\\propto I_{\\rm EUV}^{-0.094}$. A magnetospheric model is considered to reproduce this variation. It is found that an effective high-order multipole field is required, and that the field strength at the surface of the white dwarf is 0.1--1 MG. Such a field strength is at the lower extreme of those measured or inferred for bona fide magnetic cataclysmic variables.

  1. A near-infrared shock wave in the 2006 outburst of recurrent nova RS Ophiuchi

    E-Print Network [OSTI]

    Ramkrishna Das; Dipankar P. K. Banerjee; Nagarhalli M. Ashok

    2006-11-08T23:59:59.000Z

    Near-infrared spectra are presented for the recent 2006 outburst of the recurrent nova RS Ophiuchi (RS Oph).We report the rare detection of an infrared shock wave as the nova ejecta plows into the pre-existing wind of the secondary in the RS Oph system consisting of a white dwarf (WD) primary and a red giant secondary. The evolution of the shock is traced through a free expansion stage to a decelerative phase. The behavior of the shock velocity with time is found to be broadly consistent with current shock models. The present observations also imply that the WD in the RS Oph system has a high mass indicating that it could be a potential SNIa candidate. We also discuss the results from a recent study showing that the near-IR continuum from the recent RS Oph eruption does not originate in an expanding fireball. However, the present work shows that the IR line emission does have an origin in an expanding shock wave.

  2. Photoionization Heating of Nova Ejecta by the Post-Outburst Supersoft Source

    E-Print Network [OSTI]

    Cunningham, Timothy; Bildsten, Lars

    2015-01-01T23:59:59.000Z

    The expanding ejecta from a classical nova remains hot enough ($\\sim10^{4}\\, {\\rm K}$) to be detected in thermal radio emission for up to years after the cessation of mass loss triggered by a thermonuclear instability on the underlying white dwarf (WD). Nebular spectroscopy of nova remnants confirms the hot temperatures observed in radio observations. During this same period, the unstable thermonuclear burning transitions to a prolonged period of stable burning of the remnant hydrogen-rich envelope, causing the WD to become, temporarily, a super-soft X-ray source. We show that photoionization heating of the expanding ejecta by the hot WD maintains the observed nearly constant temperature of $(1-4)\\times10^4\\mathrm{~K}$ for up to a year before an eventual decline in temperature due to either the cessation of the supersoft phase or the onset of a predominantly adiabatic expansion. We simulate the expanding ejecta using a one-zone model as well as the Cloudy spectral synthesis code, both incorporating the time-d...

  3. Minara Nova

    E-Print Network [OSTI]

    Multiple Contributors

    1982-01-01T23:59:59.000Z

    .) -- Colp. Toys in the Attic -- Citadel What is Rain (Children's Album) --Decca World of Susie Wong -- RCA Victor You Can't Run Away from It (Decca) The Man with Bogart's Face Then Came Bronson -- Capitol Records Television includes: Alcoa-Goodyear...

  4. INFRARED SPECTROSCOPY OF SYMBIOTIC STARS. IX. D-TYPE SYMBIOTIC NOVAE

    SciTech Connect (OSTI)

    Hinkle, Kenneth H.; Joyce, Richard R. [National Optical Astronomy Observatories, P.O. Box 26732, Tucson, AZ 85726 (United States); Fekel, Francis C. [Center of Excellence in Information Systems, Tennessee State University, 3500 John A. Merritt Blvd., Box 9501, Nashville, TN 37209 (United States); Wood, Peter, E-mail: hinkle@noao.edu, E-mail: joyce@noao.edu, E-mail: fekel@evans.tsuniv.edu, E-mail: wood@mso.anu.edu.au [Research School of Astronomy and Astrophysics, Australian National University, Private Bag, Canberra, ACT 2611 (Australia)

    2013-06-10T23:59:59.000Z

    Time-series spectra of the near-infrared 1.6 {mu}m region have been obtained for five of the six known D-type symbiotic novae. The spectra map the pulsation kinematics of the Mira component in the Mira-white dwarf binary system and provide the center-of-mass velocity for the Mira. No orbital motion is detected in agreement with previous estimates of orbital periods {approx}>100 yr and semimajor axes {approx}50 AU. The 1-5 {mu}m spectra of the Miras show line weakening during dust obscuration events. This results from scattering and continuum emission by 1000 K dust. In the heavily obscured HM Sge system the 4.6 {mu}m CO spectrum formed in 1000 K gas is seen in emission against an optically thick dust continuum. Spectral features that are typically produced in either the cool molecular region or the expanding circumstellar region of late-type stars cannot be detected in the D-symbiotic novae. This is in accord with the colliding wind model for interaction between the white dwarf and Mira. Arguments are presented that the 1000 K gas and dust are not Mira circumstellar material but are in the wind interaction region of the colliding winds. CO is the first molecule detected in this region. We suggest that dust condensing in the intershock region is the origin of the dust obscuration. This model explains variations in the obscuration. Toward the highly obscured Mira in HM Sge the dust zone is estimated to be {approx}0.1 AU thick. The intershock wind interaction zone appears thinnest in the most active systems. Drawing on multiple arguments masses are estimated for the system components. The Miras in most D-symbiotic novae have descended from intermediate mass progenitors. The large amount of mass lost from the Mira combined with the massive white dwarf companion suggests that these systems are supernova candidates. However, timescales and the number of objects make these rare events.

  5. PHASE-RESOLVED INFRARED SPECTROSCOPY AND PHOTOMETRY OF V1500 CYGNI, AND A SEARCH FOR SIMILAR OLD CLASSICAL NOVAE

    SciTech Connect (OSTI)

    Harrison, Thomas E. [Department of Astronomy, New Mexico State University, Box 30001, MSC 4500, Las Cruces, NM 88003-8001 (United States); Campbell, Randy D.; Lyke, James E., E-mail: tharriso@nmsu.edu, E-mail: jlyke@keck.hawaii.edu, E-mail: randyc@keck.hawaii.edu [W. M. Keck Observatory, 65-1120 Mamalahoa Hwy., Kamuela, HI 96743 (United States)

    2013-08-01T23:59:59.000Z

    We present phase-resolved near-infrared photometry and spectroscopy of the classical nova (CN) V1500 Cyg to explore whether cyclotron emission is present in this system. While the spectroscopy do not indicate the presence of discrete cyclotron harmonic emission, the light curves suggest that a sizable fraction of its near-infrared fluxes are due to this component. The light curves of V1500 Cyg appear to remain dominated by emission from the heated face of the secondary star in this system. We have used infrared spectroscopy and photometry to search for other potential magnetic systems among old CNe. We have found that the infrared light curves of V1974 Cyg superficially resemble those of V1500 Cyg, suggesting a highly irradiated companion. The old novae V446 Her and QV Vul have light curves with large amplitude variations like those seen in polars, suggesting they might have magnetic primaries. We extract photometry for 79 old novae from the Two Micron All Sky Survey Point Source Catalog and use those data to derive the mean, un-reddened infrared colors of quiescent novae. We also extract WISE data for these objects and find that 45 of them were detected. Surprisingly, a number of these systems were detected in the WISE 22 {mu}m band. While two of those objects produced significant dust shells (V705 Cas and V445 Pup), the others did not. It appears that line emission from their ionized ejected shells is the most likely explanation for those detections.

  6. The first two transient supersoft X-ray sources in M 31 globular clusters and the connection to classical novae

    E-Print Network [OSTI]

    M. Henze; W. Pietsch; F. Haberl; G. Sala; R. Quimby; M. Hernanz; M. Della Valle; P. Milne; G. G. Williams; V. Burwitz; J. Greiner; H. Stiele; D. H. Hartmann; A. K. H. Kong; K. Hornoch

    2009-04-28T23:59:59.000Z

    Classical novae (CNe) have been found to represent the major class of supersoft X-ray sources (SSS) in our neighbour galaxy M 31. We determine properties and evolution of the two first SSSs ever discovered in the M 31 globular cluster (GC) system. We have used XMM-Newton, Chandra and Swift observations of the centre region of M 31 to discover both SSS and to determine their X-ray light curves and spectra. We performed detailed analysis of XMM-Newton EPIC PN spectra of the source in Bol 111 (SS1) using blackbody and NLTE white dwarf (WD) atmosphere models. For the SSS in Bol 194 (SS2) we used optical monitoring data to search for an optical counterpart. Both GC X-ray sources were classified as SSS. We identify SS1 with the CN M31N 2007-06b recently discovered in the M 31 GC Bol 111. For SS2 we did not find evidence for a recent nova outburst and can only provide useful constraints on the time of the outburst of a hypothetical nova. The only known CN in a M 31 GC can be identified with the first SSS found in a M31 GC. We discuss the impact of our observations on the nova rate for the M 31 GC system.

  7. Argonne materials scientist Vilas Pol (former postdoc) was recently featured on the PBS NOVA series "Making Stuff: Cleaner," where

    E-Print Network [OSTI]

    Kemner, Ken

    #12;Argonne materials scientist Vilas Pol (former postdoc) was recently featured on the PBS NOVA in the nation for science and engineering research, Argonne National Laboratory is home to many brilliant-class researchers to work alongside experts from industry, academia and other government laboratories. Argonne

  8. Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 2011 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 2011 Nova Science Publishers, Inc. THE MYSTERYAND UNCERTAINTY CLOUD DURING RESERVOIR SIMULATION IN THE PETROLEUM INDUSTRY M. Enamul Hossain1 and M. Rafiqul Islam2 1 Department of Petroleum Engineering, King Fahd

  9. Scotia Wind Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDITCalifornia Sector: WindRiegotec InternacionalhasASScira

  10. Remarkable changes in the near-infrared spectrum of the nova-like variable V4332 Sgr

    E-Print Network [OSTI]

    D. P. K. Banerjee; P. W. Varricatt; N. M. Ashok; O. Launila

    2003-10-03T23:59:59.000Z

    We report on recent near-IR observations of V4332 Sgr - the nova-like variable that erupted in 1994. Its rapid, post-outburst evolution to a cool M type giant/supergiant, soon after its outburst, had showed that it was an unusual object differing from other eruptive variables like classical/symbiotic novae or born-again AGB stars. The present study of V4332 Sgr was motivated by the keen interest in the recent eruption of V838 Mon - which along with V4332 Sgr - is believed to belong to a new class of objects (we propose they may be called "quasi-novae"). Our observations show new developments in the evolution of V4332 Sgr. The most striking feature is the detection of several molecular bands of AlO - a rarely seen molecule in astronomical spectra - in the JHK spectra. Many of these bands are being detected for the first time. The only other detection of some of these AlO bands are in V838 Mon, thereby showing further spectral similarities between the two objects. JHK photometry shows the development of a new dust shell around V4332 Sgr with a temperature of ~ 900K. This dust shell does not appear to be associated with ejecta of the 1994 outburst but is due to a second mass-loss episode which is not expected in a classical nova outburst. The cold molecular environment, suggested by the AlO emission, is also not expected in novae ejecta. We model the AlO bands and also discuss the possible formation mechanism of the AlO.

  11. Orbital and stochastic far-UV variability in the nova-like system V3885 Sgr

    E-Print Network [OSTI]

    Prinja, R K; Richards, M T; Witherick, D K; Peck, L W

    2011-01-01T23:59:59.000Z

    Highly time-resolved time-tagged FUSE satellite spectroscopic data are analysed to establish the far-ultraviolet (FUV) absorption line characteristics of the nova-like cataclysmic variable binary, V3885 Sgr. We determine the temporal behaviour of low (Ly_beta, CIII, NIII) and high (SIV, PV, OVI) ion species, and highlight corresponding orbital phase modulated changes in these lines. On average the absorption troughs are blueshifted due to a low velocity disc wind outflow. Very rapid (~ 5 min) fluctuations in the absorption lines are isolated, which are indicative of stochastic density changes. Doppler tomograms of the FUV lines are calculated which provide evidence for structures where a gas stream interacts with the accretion disc. We conclude that the line depth and velocity changes as a function of orbital phase are consistent with an asymmetry that has its origin in a line-emitting, localised disc-stream interaction region.

  12. Data Quality and Performance of the NOvA Prototype Detector

    E-Print Network [OSTI]

    S. Lein for the NOvA collaboration

    2011-09-14T23:59:59.000Z

    The NOvA project is a long-baseline neutrino experiment. It utilizes the NuMI neutrino beam at Fermilab and consists of two functionally-identical liquid scintillator filled detectors. The detectors are placed 14 milliradians off-axis from the beam and 810 km apart. A 209 ton prototype detector, the Near Detector On the Surface (NDOS), was built and began taking initial neutrino data in December 2010. NDOS is 110 milliradians off-axis from the NuMI beam and also records neutrinos from the Booster Neutrino Beam. As NDOS is in the commissioning phase, metrics are being developed to improve understanding of the detector as well as monitor the quality of data. Performance of the prototype detector will be presented.

  13. A Luminous Red Nova in M31 and its Progenitor System

    E-Print Network [OSTI]

    Williams, S C; Bode, M F; Steele, I A

    2015-01-01T23:59:59.000Z

    We present observations of M31LRN 2015 (MASTER OT J004207.99+405501.1), discovered in M31 in January 2015, and identified as a rare and enigmatic luminous red nova (LRN). Spectroscopic and photometric observations obtained by the Liverpool Telescope showed the LRN becoming extremely red as it faded from its M(V) = -9.4 +/- 0.2 peak. Early spectra showed strong Halpha emission that weakened over time as a number of absorption features appeared, including Na I D and Ba II. At later times strong TiO absorption bands were also seen. A search of archival Hubble Space Telescope data revealed a luminous red source to be the likely progenitor system, with pre-outburst Halpha emission also detected in ground-based data. The outburst of M31LRN 2015 shows many similarities, both spectroscopically and photometrically, with that of V838 Mon, the best studied LRN. We finally discuss the possible progenitor scenarios.

  14. The EUV Spectrum of the Quasi-Coherent Oscillations of the Dwarf Nova SS Cygni

    E-Print Network [OSTI]

    Christopher W. Mauche

    1996-08-05T23:59:59.000Z

    Data obtained by the Extreme Ultraviolet Explorer satellite are used to determine the EUV spectrum of the quasi-coherent oscillations of the dwarf nova SS Cygni. It is found that the spectrum of the oscillations is neither blue nor red nor grey relative to the net (oscillation-phase integrated) spectrum, and hence that the oscillations cannot be explained by variations in the effective temperature, absorbing column density, or effective area, respectively. Instead, it is found that the amplitude of the oscillations is high at the relative maxima of the net spectrum, and low to zero at the relative minima of the net spectrum. This behavior can be explained by either variations in the emission line flux atop a constant underlying continuum, or variations in the optical depth of a haze of overlapping absorption lines, in which case the optical depths must be $\\tau<1$ at the relative maxima of the net spectrum, and $\\tau\\gg 1$ at the relative minima.

  15. Evidence for ablated flows in the shell of nova DQ Her

    E-Print Network [OSTI]

    N. M. H. Vaytet; T. J. O'Brien; A. P. Rushton

    2007-06-01T23:59:59.000Z

    High-resolution longslit Halpha spectra of the shell of the old nova DQ Her have been obtained with the William Herschel Telescope using the ISIS spectrograph. An equatorial expansion velocity of 370+/-14 km/s is derived from the spectra which, in conjunction with a narrowband Halpha image of the remnant, allows a distance estimate of 525+/-28 pc. An equatorial ring which exhibits enhanced [NII] emission has also been detected and the inclination angle of the shell is found to be 86.8+/-0.2 degrees with respect to the line of sight. The spectra also reveal tails extending from the clumps in the shell, which have a radial velocity increasing along their length. This suggests the presence of a stellar wind, collimated in the polar direction, which ablates fragments of material from the clumps and accelerates them into its stream up to a terminal velocity of order 800-900 km/s.

  16. BRIGHT 'MERGER-NOVA' FROM THE REMNANT OF A NEUTRON STAR BINARY MERGER: A SIGNATURE OF A NEWLY BORN, MASSIVE, MILLISECOND MAGNETAR

    SciTech Connect (OSTI)

    Yu, Yun-Wei [Institute of Astrophysics, Central China Normal University, Wuhan 430079 (China)] [Institute of Astrophysics, Central China Normal University, Wuhan 430079 (China); Zhang, Bing; Gao, He, E-mail: yuyw@mail.ccnu.edu.cn, E-mail: zhang@physics.unlv.edu [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States)] [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States)

    2013-10-20T23:59:59.000Z

    A massive millisecond magnetar may survive the merger of a neutron star (NS) binary, which would continuously power the merger ejecta. We develop a generic dynamic model for the merger ejecta with energy injection from the central magnetar. The ejecta emission (the {sup m}erger-nova{sup )} powered by the magnetar peaks in the UV band and the peak of the light curve, progressively shifts to an earlier epoch with increasing frequency. A magnetar-powered merger-nova could have an optical peak brightness comparable to a supernova, which is a few tens or hundreds times brighter than the radioactive-powered merger-novae (the so-called macro-nova or kilo-nova). On the other hand, such a merger-nova would peak earlier and have a significantly shorter duration than that of a supernova. An early collapse of the magnetar could suppress the brightness of the optical emission and shorten its duration. Such millisecond-magnetar-powered merger-novae may be detected from NS-NS merger events without an observed short gamma-ray burst, and could be a bright electromagnetic counterpart for gravitational wave bursts due to NS-NS mergers. If detected, it suggests that the merger leaves behind a massive NS, which has important implications for the equation-of-state of nuclear matter.

  17. QU Car: a very high luminosity nova-like binary with a carbon-enriched companion

    E-Print Network [OSTI]

    J. E. Drew; L. E. Hartley; K. S. Long; J. van der Walt

    2002-09-16T23:59:59.000Z

    QU Car is listed in cataclysmic variable star catalogues as a nova-like variable. This little-studied, yet bright interacting binary is re-appraised here in the light of new high-quality ultraviolet (UV) interstellar line data obtained with STIS on board the Hubble Space Telescope. The detection of a component of interstellar absorption at a mean LSR velocity of $-$14 km s$^{-1}$ indicates that the distance to QU Car may be $\\sim$2 kpc or more -- a considerable increase on the previous lower-limiting distance of 500 pc. If so, the bolometric luminosity of QU Car could exceed $10^{37}$ ergs s$^{-1}$. This would place this binary in the luminosity domain occupied by known compact-binary supersoft X-ray sources. Even at a 500 pc, QU Car appears to be the most luminous nova-like variable known. New intermediate dispersion optical spectroscopy of QU Car spanning 3800--7000 \\AA is presented. These data yield the discovery that C{\\sc iv} $\\lambda\\lambda$5801,12 is present as an unusually prominent emission line in an otherwise low-contrast line spectrum. Using measurements of this and other lines in a recombination line analysis, it is shown that the C/He abundance as proxied by the n(C$^{4+}$)/n(He$^{2+}$) ratio may be as high as 0.06 (an order of magnitude higher than the solar ratio). Furthermore, the C/O abundance ratio is estimated to be greater than 1. These findings suggest that the companion in QU Car is a carbon star. If so, it would be the first example of a carbon star in such a binary. An early-type R star best matches the required abundance pattern and could escape detection at optical wavelengths provided the distance to QU Car is $\\sim$2 kpc or more.

  18. Non-LTE model atmosphere analysis of the early ultraviolet spectra of nova OS Andromedae 1986

    E-Print Network [OSTI]

    Greg Schwarz; Peter H. Hauschildt; Sumner Starrfield; Eddie Baron; France Allard; Steve Shore; George Sonneborn

    1996-08-29T23:59:59.000Z

    We have analyzed the early optically thick ultraviolet spectra of Nova OS And 1986 using a grid of spherically symmetric, non-LTE, line-blanketed, expanding model atmospheres and synthetic spectra with the following set of parameters: $5,000\\le$ T$_{model}$ $\\le 60,000$K, solar abundances, $\\rho \\propto r^{-3}$, $\\v_{max} = 2000\\kms$, $L=6 \\times 10^{4}\\Lsun$, and a statistical or microturbulent velocity of 50 $\\kms$. We used the synthetic spectra to estimate the model parameters corresponding to the observed {\\it IUE} spectra. The fits to the observations were then iteratively improved by changing the parameters of the model atmospheres, in particular T$_{model}$ and the abundances, to arrive at the best fits to the optically thick pseudo-continuum and the features found in the {\\it IUE} spectra. The {\\it IUE} spectra show two different optically thick subphases. The earliest spectra, taken a few days after maximum optical light, show a pseudo-continuum created by overlapping absorption lines. The later observations, taken approximately 3 weeks after maximum light, show the simultaneous presence of allowed, semi-forbidden, and forbidden lines in the observed spectra. Analysis of these phases indicate that OS And 86 had solar metallicities except for Mg which showed evidence of being underabundant by as much as a factor of 10. We determine a distance of 5.1 kpc to OS And 86 and derive a peak bolometric luminosity of $\\sim$ 5 $\\times$ 10$^4$ L$_{\\odot}$. The computed nova parameters provide insights into the physics of the early outburst and explain the spectra seen by {\\it IUE}. Lastly, we find evidence in the later observations for large non-LTE effects of Fe{\\sc ii} which, when included, lead to much better agreement with the observations.

  19. Time-resolved spectroscopy and photometry of the dwarf nova FS Aurigae in quiescence

    E-Print Network [OSTI]

    V. V. Neustroev

    2001-10-26T23:59:59.000Z

    We present results of non-simultaneous time-resolved photometric and spectroscopic observations of the little-studied dwarf nova FS Aur in quiescence. The spectrum of FS Aur shows strong and broad emission lines of hydrogen and HeI, and of weaker HeII 4686 and CIII/NIII blend, similar to other quiescent dwarf novae. All emission lines are single-peaked, however their form varies with orbital phase. Absorption lines from a late-type secondary are not detected. From the radial velocity measurements of the hydrogen lines H$_\\beta$ and H$_\\gamma$ we determined a most probable orbital period P=0.059+-0.002. This period agrees well with the 0.0595+-0.0001 estimate by Thorstensen et al. (1996). On the other hand, the period of photometric modulations is longer than the spectroscopic period and can be estimated as 3 hours. Longer time coverage during a single night is needed to resolve this problem. Using the semi-amplitude of the radial velocities, obtained from measurements of hydrogen and helium lines, and some empirical and theoretical relations we limited the basic parameters of the system: a mass ratio q>=0.22, a primary mass M_1=0.34 - 0.46 M_sun, a secondary mass M_2<= 0.1M_sun, and an inclination angle i=51^{\\circ} - 65^{\\circ}. Doppler tomography has shown at least two bright regions in the accretion disk of FS Aur. The first, brighter spot is located at phase about 0.6. The second spot is located opposite the first one and occupies an extensive area at phases about 0.85 - 1.15.

  20. On the 21Na(p,gamma)22Mg thermonuclear rate for 22Na production in novae

    E-Print Network [OSTI]

    Nadya A. Smirnova; Alain Coc

    2000-08-16T23:59:59.000Z

    Classical novae are potential sources of gamma-rays, like the 1.275 MeV gamma emission following 22Na beta decay, that could be detected by appropriate instruments on board of future satellites like INTEGRAL. It has been shown that the production of 22Na by novae is affected by the uncertainty on the 21Na(p,gamma)22Mg rate and in particular by the unknown partial widths of the Ex = 5.714 MeV, J^pi = 2^+, 22Mg level. To reduce these uncertainties, we performed shell model calculations with the OXBASH code, compared the results with available spectroscopic data and calculated the missing partial widths. Finally, we discuss the influence of these results on the 21Na(p,gamma)22Mg reaction rate and 22Na synthesis.

  1. Dwarf Nova-like Outburst of Short Period Intermediate Polar HT Camelopardalis

    E-Print Network [OSTI]

    Ryoko Ishioka; Taichi Kato; Makoto Uemura; Gary W. Billings; Koichi Morikawa; Ken'ichi Torii; Kenji Tanabe; Arto Oksanen; Harri Hyvonen; Hitoshi Itoh

    2002-06-12T23:59:59.000Z

    We report the first time-series observations of the short outburst of the proposed intermediate polar HT Cam (=RX J0757.0+6306). On 2001 December 29, we detected the object was undergoing a bright outburst at the magnitude of $m_{vis}=12.2$. Following this detection, we started international joint observations through VSNET. The light curve showed a gradual decline for the first 0.5 d. Following this short plateau phase, the rate of decline dramatically increased to more than 4 mag d$^{-1}$. Within 1.5 d from the outburst detection, the object almost declined to the quiescent level. During the rapidly declining phase, long-term modulations with a period of 86 min and strong pulses with a period of 8.6 min were observed. We concluded that 86 min and 8.6 min are the orbital period and the spin period of HT Cam, respectively. By the detection of the spin period, we confirmed the IP classification of HT Cam. However, its outburst behavior rather resembles that of dwarf novae. The discrepancy between the declining rates of the total flux and the pulse flux strongly suggests that the disk instabilities were taking place during the outburst.

  2. Simulations of laser imprint for Nova experiments and for ignition capsules. Revision 1

    SciTech Connect (OSTI)

    Weber, S.V.; Glendinning, S.G.; Kalantar, D.H.; Key, M.H.; Remington, B.A.; Rothenberg, J.L. [Lawrence Livermore National Lab., CA (United States); Wolfrum, E. [Rutherford Appleton Lab., Chilton (United Kingdom); Verdon, C.P.; Knauer, J.P. [Rochester Univ., NY (United States). Lab. for Laser Energetics

    1996-12-01T23:59:59.000Z

    In direct drive ICF, nonuniformities in laser illumination seed ripples at the ablation front in a process called ``imprint``. These nonuniformities grow during the capsule implosion and, if initially large enough, can penetrate the capsule shell, impede ignition, or degrade burn. Imprint has been simulated for recent experiments performed on the Nova laser at LLNL examining a variety of beam smoothing conditions. Most used laser intensities similar to the early part of an ignition capsule pulse shape, 1 {approx_equal} 10{sup 13} W/cm{sup 2} . The simulations matched most of the measurements of imprint modulation. The effect of imprint upon National Ignition Facility (NIF) direct drive ignition capsules has also been simulated. Imprint is predicted to give modulation comparable to an intrinsic surface finish of {approximately}10 nm RMS. Modulation growth was examined using the Haan [Phys. Rev. A {bold 39}, 5812 (1989)] model, with linear growth factors as a function of spherical harmonic mode number obtained from an analytic dispersion relation. Ablation front amplitudes are predicted to become substantially nonlinear, so that saturation corrections are large. Direct numerical simulations of two-dimensional multimode growth were also performed. The capsule shell is predicted to remain intact, which gives a basis for believing that ignition can be achieved. 27 refs., 10 figs.

  3. Simulations of laser imprint for Nova experiments and for ignition capsules

    SciTech Connect (OSTI)

    Weber, S.V.; Glendinning, S.G.; Kalantar, D.H.; Key, M.H.; Remington, B.A.; Rothenberg, J.E.; Wolfrum, E.; Verdon, C.P.; Knauer, J.P.

    1996-11-08T23:59:59.000Z

    In direct drive ICF, nonuniformities in laser illumination seed ripples at the ablation front in a process called imprint. These non nonuniformities grow during the capsule implosion and, if initially large enough, can penetrate the capsule shell, impede ignition, or degrade burn. Imprint has been simulated for recent experiments performed on the Nova laser at LLNL examining a variety of beam smoothing conditions. Most used laser intensities similar to the early part of an ignition capsule pulse shape, I=10X13 W/cm3. The simulations matched most of the measurements of imprint modulation. The effect of imprint upon National Ignition Facility (NIF) direct drive ignition capsules has also been simulated. Imprint is predicted to give modulation comparable to an intrinsic surface finish of 10 nm RMS. Modulation growth was examined using the Haan model, with linear growth as a function of spherical harmonic mode number obtained from an analytic dispersion relation. Ablation front amplitudes are predicted to become substantially nonlinear, so that saturation corrections are large. Direct numerical simulations of two- dimensional multimode growth were also performed. The capsule shell is predicted to remain intact, which gives a basis for believing that ignition can be achieved.

  4. The Masses and Evolutionary State of the Stars in the Dwarf Nova SS Cygni

    E-Print Network [OSTI]

    Martin A. Bitner; Edward L. Robinson; Bradford B. Behr

    2007-03-05T23:59:59.000Z

    The dwarf nova SS Cygni is a close binary star consisting of a K star transferring mass to a white dwarf by way of an accretion disk. We have obtained new spectroscopic observations of SS Cyg with the Hobby-Eberly Telescope (HET). Fits of synthetic spectra for Roche-lobe-filling stars to the absorption-line spectrum of the K star yield the amplitude of the K star's radial velocity curve and the mass ratio: K_{K} = 162.5 +/- 1.0 km/s and q= M_{K} /M_{wd} = 0.685 +/- 0.015. The fits also show that the accretion disk and white dwarf contribute a fraction f = 0.535 +/- 0.075 of the total flux at 5500 angstroms. Taking the weighted average of our results with previously published results obtained using similar techniques, we find = 163.7 +/- 0.7 km/s and = 0.683 +/- 0.012. The orbital light curve of SS Cyg shows an ellipsoidal variation diluted by light from the disk and white dwarf. From an analysis of the ellipsoidal variations we limit the orbital inclination to the range 45 deg. <= i <= 56 deg. The derived masses of the K star and white dwarf are M_{K} = 0.55 +/- 0.13 M_sun and M_{wd} = 0.81 +/- 0.19 M_sun, where the uncertainties are dominated by systematic errors in the orbital inclination. The K star in SS Cyg is 10% to 50% larger than an unevolved star with the same mass and thus does not follow the mass-radius relation for Zero-Age Main-Sequence stars; nor does it follow the ZAMS mass/spectral-type relation. Its mass and spectral type are, however, consistent with models in which the core hydrogen has been significantly depleted.

  5. Direct measurement of the 15N(p,gamma)16O total cross section at novae energies

    E-Print Network [OSTI]

    D Bemmerer; A Caciolli; R Bonetti; C Broggini; F Confortola; P Corvisiero; H Costantini; Z Elekes; A Formicola; Zs Fulop; G Gervino; A Guglielmetti; C Gustavino; Gy Gyurky; M Junker; B Limata; M Marta; R Menegazzo; P Prati; V Roca; C Rolfs; C Rossi Alvarez; E Somorjai; O Straniero

    2009-02-04T23:59:59.000Z

    The 15N(p,gamma)16O reaction controls the passage of nucleosynthetic material from the first to the second carbon-nitrogen-oxygen (CNO) cycle. A direct measurement of the total 15N(p,gamma)16O cross section at energies corresponding to hydrogen burning in novae is presented here. Data have been taken at 90-230 keV center-of-mass energy using a windowless gas target filled with nitrogen of natural isotopic composition and a bismuth germanate summing detector. The cross section is found to be a factor two lower than previously believed.

  6. Observational Accuracy of Variable Stars, Novae and Supernovae from Naked Eye to General Relativistic Standard: a Balance over Thousand SGQ Observations Sent to AAVSO

    E-Print Network [OSTI]

    Sigismondi, Costantino

    2015-01-01T23:59:59.000Z

    The theory of General Relativity deals with very accurate measurements that show significant divergences from Newtonian predictions only with speeds near to the velocity of light. An introduction for educational purposes, based on naked eye photometry, deals with the radiation near collapsing star's shells like novae and supernovae. The theme of accuracy is drafted from entry level observations to the precision of professional data, often of public domain on the web. Thousand observations of variable stars, included the type 1a SN2014J, the Nova Del 2013 and the Nova Cen 2013, sent to the AAVSO by the author, with SGQ code, during the period 1998-2015 are analyzed to increase the photometric accuracy, in the occasion of the International Year of Light 2015.

  7. New 34Cl proton-threshold states and the thermonuclear 33S(p,gamma)34Cl rate in ONe novae

    E-Print Network [OSTI]

    A. Parikh; T. Faestermann; R. Hertenberger; R. Kruecken; D. Schafstadler; H. -F. Wirth; T. Behrens; V. Bildstein; S. Bishop; K. Eppinger; C. Herlitzius; C. Hinke; M. Schlarb; D. Seiler; K. Wimmer

    2009-06-19T23:59:59.000Z

    Analysis of presolar grains in primitive meteorites has shown isotopic ratios largely characteristic of the conditions thought to prevail in various astrophysical environments. A possible indicator for a grain of ONe nova origin is a large 33S abundance: nucleosynthesis calculations predict as much as 150 times the solar abundance of 33S in the ejecta of nova explosions on massive ONe white dwarfs. This overproduction factor may, however, vary by factors of at least 0.01 - 3 because of uncertainties of several orders of magnitude in the 33S(p,gamma)34Cl reaction rate at nova peak temperatures (Tpeak ~ 0.1 - 0.4 GK). These uncertainties arise due to the lack of nuclear physics information for states within ~ 600 keV of the 33S+p threshold in 34Cl (Sp(34Cl) = 5143 keV). To better constrain this rate we have measured, for the first time, the 34S(3He,t)34Cl reaction over the region Ex(34Cl) = 4.9 - 6 MeV. We confirm previous states and find 15 new states in this energy region. New 33S(p,gamma)34Cl resonances at ER = 281(2), 301(2) and 342(2) keV may dominate this rate at relevant nova temperatures. Our results could affect predictions of sulphur isotopic ratios in nova ejecta (e.g., 32S/33S) that may be used as diagnostic tools for the nova paternity of grains.

  8. Helium Nova on a Very Massive White Dwarf -- A Light Curve Model of V445 Puppis (2000) Revised

    E-Print Network [OSTI]

    Mariko Kato; Izumi Hachisu; Seiichiro Kiyota; Hideyuki Saio

    2008-05-16T23:59:59.000Z

    V445 Pup (2000) is a unique object identified as a helium nova. Color indexes during the outburst are consistent with those of free-free emission. We present a free-free emission dominated light curve model of V445 Pup on the basis of the optically thick wind theory. Our light curve fitting shows that (1) the white dwarf (WD) mass is very massive (M_WD \\gtrsim 1.35 M_\\sun), and (2) a half of the accreted matter remains on the WD, both of which suggest that the increasing WD mass. Therefore, V445 Pup is a strong candidate of Type Ia supernova progenitor. The estimated distance to V445 Pup is now consistent with the recent observational suggestions, 3.5 helium star companion is consistent with the brightness of m_v=14.5 mag just before the outburst, if it is a little bit evolved hot (\\log T (K) \\gtrsim 4.5) star with the mass of M_He \\gtrsim 0.8 M_\\sun. We then emphasize importance of observations in the near future quiescent phase after the thick circumstellar dust dissipates away, especially its color and magnitude to specify the nature of the companion star. We have also calculated helium ignition masses for helium shell flashes against various helium accretion rates and discussed the recurrence period of helium novae.

  9. A remarkable recurrent nova in M31: Discovery and optical/UV observations of the predicted 2014 eruption

    E-Print Network [OSTI]

    Darnley, M J; Steele, I A; Bode, M F; Ribeiro, V A R M; Rodrguez-Gil, P; Shafter, A W; Williams, S C; Baer, D; Hachisu, I; Hernanz, M; Hornoch, K; Hounsell, R; Kato, M; Kiyota, S; Ku?kov, H; Maehara, H; Ness, J -U; Piascik, A S; Sala, G; Skillen, I; Smith, R J; Wolf, M

    2015-01-01T23:59:59.000Z

    The Andromeda Galaxy recurrent nova M31N 2008-12a had been caught in eruption eight times. The inter-eruption period of M31N 2008-12a is ~1 year, making it the most rapidly recurring system known, and a strong single-degenerate Type Ia Supernova progenitor candidate. Following the 2013 eruption, a campaign was initiated to detect the predicted 2014 eruption and to then perform high cadence optical photometric and spectroscopic monitoring using ground-based telescopes, along with rapid UV and X-ray follow-up with the Swift satellite. Here we report the results of a high cadence multicolour optical monitoring campaign, the spectroscopic evolution, and the UV photometry. We also discuss tantalising evidence of a potentially related, vastly-extended, nebulosity. The 2014 eruption was discovered, before optical maximum, on October 2, 2014. We find that the optical properties of M31N 2008-12a evolve faster than all Galactic recurrent novae known, and all its eruptions show remarkable similarity both photometrically...

  10. Quark-Novae in massive binaries : a model for double-humped, hydrogen-poor, superluminous Supernovae

    E-Print Network [OSTI]

    Ouyed, Rachid; Koning, Nico

    2015-01-01T23:59:59.000Z

    LSQ14bdq and SN 2006oz are super-luminous, hydrogen-poor, SNe with double-humped light curves. We show that a Quark-Nova (QN; explosive transition of the neutron star to a quark star) occurring in a massive binary, experiencing two Common Envelope (CE) phases, can quantitatively explain the light curves of LSQ14bdq and SN 2006oz. The more massive component (A) explodes first as a normal SN, yielding a Neutron Star which ejects the hydrogen envelope of the companion when the system enters its first CE phase. During the second CE phase, the NS spirals into and inflates the second He-rich CE. In the process it gains mass and triggers a Quark-Nova, outside of the CO core, leaving behind a Quark Star. The first hump in our model is the QN shock re-energizing the expanded He-rich CE. Subsequent merging of the Quark Star with the CO core of component B turns the Quark star to a Black Hole. The ensuing Black Hole accretion provides sufficient power for the second brighter and long lasting hump. Our model suggests a p...

  11. Photometric study of southern SU UMa-type dwarf novae and candidates -- III: NSV 10934, MM Sco, AB Nor, CAL 86

    E-Print Network [OSTI]

    T. Kato; P. Nelson; C. Stockdale; B. Monard; T. Richards; R. Stubbings; H. Yamaoka; B. Heathcote; R. Santallo

    2003-10-01T23:59:59.000Z

    We photometrically observed four southern dwarf novae in outburst (NSV 10934, MM Sco, AB Nor and CAL 86). NSV 10934 was confirmed to be an SU UMa-type dwarf nova with a mean superhump period of 0.07478(1) d. This star also showed transient appearance of quasi-periodic oscillations (QPOs) during the final growing stage of the superhumps. Combined with the recent theoretical interpretation and with the rather unusual rapid terminal fading of normal outbursts, NSV 10934 may be a candidate intermediate polar showing SU UMa-type properties. The mean superhump periods of MM Sco and AB Nor were determined to be 0.06136(4) d and 0.08438(2) d, respectively. We suggest that AB Nor belongs to a rather rare class of long-period SU UMa-type dwarf novae with low mass-transfer rates. We also observed an outburst of the suspected SU UMa-type dwarf nova CAL 86. We identified this outburst as a normal outburst and determined the mean decline rate of 1.1 mag/d.

  12. GK Per (Nova Persei 1901): HUBBLE SPACE TELESCOPE IMAGERY AND SPECTROSCOPY OF THE EJECTA, AND FIRST SPECTRUM OF THE JET-LIKE FEATURE

    SciTech Connect (OSTI)

    Shara, Michael M.; Zurek, David; Mizusawa, Trisha [Department of Astrophysics, American Museum of Natural History, Central Park West and 79th street, New York, NY 10024-5192 (United States); De Marco, Orsola [Department of Physics, Macquarie University, Sydney (Australia); Williams, Robert; Livio, Mario [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)

    2012-06-15T23:59:59.000Z

    We have imaged the ejecta of GK Persei (Nova Persei 1901 A.D.) with the Hubble Space Telescope (HST), whose 0.1 arcsec resolution reveals hundreds of cometary-like structures with long axes aligned toward GK Per. One or both ends of the structures often show a brightness enhancement relative to the structures' middle sections, but there is no simple regularity to their morphologies (in contrast with, for example, the Helix nebula). Some of structures' morphologies suggest the presence of slow-moving or stationary material with which the ejecta is colliding, while others suggest shaping from a wind emanating from GK Per itself. The most detailed expansion map of any classical nova's ejecta was created by comparing HST images taken in successive years. Wide Field and Planetary Camera 2 narrowband images and Space Telescope Imaging Spectrograph spectra demonstrate that the physical conditions in this nova's ejecta vary strongly on spatial scales much smaller than those of the ejecta. Directly measuring accurate densities and compositions, and hence masses of this and other nova shells, will demand data at least as resolved spatially as those presented here. The filling factor of the ejecta is 1% or less, and the nova ejecta mass must be less than 10{sup -4} M{sub Sun }. A modest fraction of the emission nebulosities vary in brightness by up to a factor of two on timescales of one year. Finally, we present the deepest images yet obtained of a jet-like feature outside the main body of GK Per nebulosity, and the first spectrum of that feature. Dominated by strong, narrow emission lines of [N II], [O II], [O III], and [S II], this feature is probably a shock due to ejected material running into stationary interstellar matter, slowly moving ejecta from a previous nova episode, or circumbinary matter present before 1901. An upper limit to the mass of the jet is of order a few times 10{sup -6} M{sub Sun }. If the jet mass is close to this limit then the jet might be an important, or even dominant mass sink from the binary system. The jet's faintness suggests that similar features could easily have been missed in other cataclysmic binaries.

  13. X-ray Eclipse Diagnosis of the Evolving Mass Loss in the Recurrent Nova U Scorpii 2010

    E-Print Network [OSTI]

    Takei, D; Tsujimoto, M; Ness, J -U; Osborne, J P; Starrfield, S; Kitamoto, S

    2013-01-01T23:59:59.000Z

    We report the Suzaku detection of the earliest X-ray eclipse seen in the recurrent nova U Scorpii 2010. A target-of-opportunity observation 15 days after the outburst found a 27+/-5% dimming in the 0.2-1.0 keV energy band at the predicted center of an eclipse. In comparison with the X-ray eclipse depths seen at two later epochs by XMM-Newton, the source region shrank by about 10-20% between days 15 and 35 after the outburst. The X-ray eclipses appear to be deeper than or similar to contemporaneous optical eclipses, suggesting the X-ray and optical source region extents are comparable on day 15. We raise the possibility of the energy dependency in the photon escape regions, and that this would be a result of the supersoft X-ray opacity being higher than the Thomson scattering optical opacity at the photosphere due to bound-free transitions in abundant metals that are not fully ionized. Assuming a spherically symmetric explosion model, we constrain the mass-loss rate as a function of time. For a ratio of actual...

  14. X-RAY ECLIPSE DIAGNOSIS OF THE EVOLVING MASS LOSS IN THE RECURRENT NOVA U SCORPII 2010

    SciTech Connect (OSTI)

    Takei, D.; Drake, J. J. [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Tsujimoto, M. [Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan); Ness, J.-U. [European Space Agency, XMM-Newton Observatory SOC, SRE-OAX, Apartado 78, E-28691 Villanueva de la Canada, Madrid (Spain); Osborne, J. P. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Starrfield, S. [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404 (United States); Kitamoto, S., E-mail: dtakei@head.cfa.harvard.edu [Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501 (Japan)

    2013-05-20T23:59:59.000Z

    We report the Suzaku detection of the earliest X-ray eclipse seen in the recurrent nova U Scorpii 2010. A target-of-opportunity observation 15 days after the outburst found a 27% {+-} 5% dimming in the 0.2-1.0 keV energy band at the predicted center of an eclipse. In comparison with the X-ray eclipse depths seen at two later epochs by XMM-Newton, the source region shrank by about 10%-20% between days 15 and 35 after the outburst. The X-ray eclipses appear to be deeper than or similar to contemporaneous optical eclipses, suggesting the X-ray and optical source region extents are comparable on day 15. We raise the possibility of the energy dependency in the photon escape regions, and that this would be a result of the supersoft X-ray opacity being higher than the Thomson scattering opacity at the photosphere due to bound-free transitions in abundant metals that are not fully ionized. Assuming a spherically symmetric model, we constrain the mass-loss rate as a function of time. For a ratio of actual to Thomson opacity of 10-100 in supersoft X-rays, we find an ejecta mass of about 10{sup -7}-10{sup -6} M{sub Sun }.

  15. EA-355 Scotia Capital Energy, Inc. | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015 Business42.1Energy |Final Site-WideBPAPowerEE USPowerPower, Inc

  16. North American Journal of Fisheries Management 22:770784, 2002 Copyright by the American Fisheries Society 2002

    E-Print Network [OSTI]

    Myers, Ransom A.

    Hydroelectric Generating Station, Nova Scotia A. JAMIE F. GIBSON* Acadia Centre for Estuarine Research, Post structures such as the intake pipes at cooling water plants or the turbine intakes at hydroelectric abundance, behavior, and rates of passage at hydroelectric stations vary considerably in re- sponse

  17. JOURNAL DE PHYSIQUE Colloque C6, supplkment au no 12, Tome 37, Dicembre 1976, page C6-577 MOSSBAUER EFFECT IN THE SPINEL CO,,, Feom0,S,

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    JOURNAL DE PHYSIQUE Colloque C6, supplkment au no 12, Tome 37, Dicembre 1976, page C6-577 MOSSBAUER, Dalhousie University, Halifax, Nova Scotia, Canada R6sum6. -Les spectres Mossbauer du 57Fe dans la spinelle. Abstract. - Mossbauer spectra of 57Fe probe atoms in the spinel C02.94Fe0.06S4indicate the existenceof

  18. DALHOUSIE UNIVERSITY LIBRARIES Collections Strategy Librarian

    E-Print Network [OSTI]

    Brownstone, Rob

    for acquiring, preserving and sharing knowledge. As academic resources become format-agnostic and increasingly, Science, Management, and Computer Science), the W.K. Kellogg Health Sciences Library (Medicine, Dentistry of Nova Scotia academic libraries sharing a common library management system (Ex Libris Aleph 500

  19. Energy security Where will our energy come from?

    E-Print Network [OSTI]

    Hughes, Larry

    Source: World Energy Outlook 2010, International Energy Agency, 2010 #12;Natural gas and coal prices are volatile Source: EIA, Natural Gas Wellhead Prices; Annual Energy Review 2010 $0 $10 $20 $30 $40 $50 $60 $0 Energy Outlook 2010 #12;Nova Scotia: Primary and secondary energy Primary energy sources Source TWh Crude

  20. Vegetative and reproductive innovations of early land plants: implications for a

    E-Print Network [OSTI]

    Nickrent, Daniel L.

    Vegetative and reproductive innovations of early land plants: implications for a uni ed phylogeny Karen Sue Renzaglia1 , R. Joel Du¡1 {, Daniel L. Nickrent1 and David J. Garbary2 1Department of Plant (renzaglia@plant.siu.edu) 2 Department of Biology, St Francis Xavier University, Antigonish, Nova Scotia

  1. The completeness of taxonomic inventories for describing the global diversity and

    E-Print Network [OSTI]

    Myers, Ransom A.

    The completeness of taxonomic inventories for describing the global diversity and distribution University, Halifax, Nova Scotia, Canada B3H 4J1 Taxonomic inventories (or species censuses) are the most to the completeness of taxonomic inventories can have far-reaching consequences. Here, we used the largest publicly

  2. National Aeronautics and Space Administration November 2010

    E-Print Network [OSTI]

    of Applied Multiphase Thermal Engineering Nova Scotia CAD/CAM Centre Renewable Energy Storage Lab GRADUATE generation) Energy and Heat Transfer (renewable energy storage, energy conversion and management, heat, Phase Change and multiphase process, Renewable energy (Solan, Tidal), Energy Storage, Conversion

  3. BULRUSHES AND BULRUSHLIKE PLANTS OF EASTERN NORTH AMERICA

    E-Print Network [OSTI]

    By Neil Hotchkiss, Wildlife Research Biologist Patuxent Wildlife Research Center Division of Wildlife spikelets 11-13 Saltmarsh Bulrush 12 Alkali Bulrush 12 River Bulrush 13 Plants with leafy, three, brackish, and salt bays and rivers from Nova Scotia to Texas. Bulrushes vary from a few inches high

  4. Saint Mary's University Mathematics and Computing Science

    E-Print Network [OSTI]

    .S.A. lshampin@mail.smu.edu, P.H. Muir and H. Xu Department of Mathematics and Computing Science Saint Mary's University Halifax, Nova Scotia B3H 3C3, Canada muir@smu.ca, h xu@cs.stmarys.ca Abstract MIRKDC is a FORTRAN

  5. E-Voting in Brazil -The Risks to Democracy Jos Rodrigues-Filho, Cynthia J. Alexander, and Luciano C. Batista

    E-Print Network [OSTI]

    Matwin, Stan

    - 85 - E-Voting in Brazil - The Risks to Democracy Jos Rodrigues-Filho, Cynthia J. Alexander, and Luciano C. Batista Federal University of Paraiba, Paraiba, Brazil and Acadia University, Nova Scotia be implemented - then the implications for democracy should be considered. Brazil's introduction of e

  6. IN SEARCH OF A PHYSIOLOGICAL BASIS FOR COVARIATIONS IN LIGHT-LIMITED AND LIGHT-SATURATED PHOTOSYNTHESIS1

    E-Print Network [OSTI]

    Babin, Marcel

    -SATURATED PHOTOSYNTHESIS1 Michael J. Behrenfeld2 National Aeronautics and Space Administration, Goddard Space Flight Center, Department of Oceanography, Halifax, Nova Scotia B3 H 4J1, Canada The photosynthesis-irradiance (PE) of photosynthesis. Variability in PE curves can be separated into two categories: that associated with changes

  7. DELINEATION OF TILEFISH, LOPHOLATILUS CHAMAELEONTICEPS, STOCKS ALONG

    E-Print Network [OSTI]

    . It was suggested that Mid- Atlantic Bight populations be treated as a separate stock and, as a working hypothesis, that South Atlantic and Gulf of Mexico populations be considered as a second stock. Tilefish, Lopholatilus chamaeleonticeps, are dis- tributed from southern Nova Scotia (Leim 1960; Markle et al. 1980) south to off Surinam

  8. Keeping the lead: How to strengthen shark conservation and management policies in Canada

    E-Print Network [OSTI]

    Myers, Ransom A.

    Keeping the lead: How to strengthen shark conservation and management policies in Canada Aurelie, Canada B3H 4J1 b WWF-Canada, Halifax, Nova Scotia, Canada B3J 1P3 a r t i c l e i n f o Article history: Biodiversity conservation Bycatch Canada Fisheries management Sharks Threatened species a b s t r a c

  9. METEOROLOGICAL APPLICATIONS Meteorol. Appl. 18: 383405 (2011)

    E-Print Network [OSTI]

    Duck, Thomas J.

    2011-01-01T23:59:59.000Z

    solar cycles combined with high surface albedo and long wave emissivity. The lim- ited geographical properties, can be obtained by using a light detection and ranging Correspondence to: G. J. Nott, Department of Physics and Atmo- spheric Science, 1459 Oxford Street, Dalhousie University, Halifax, Nova Scotia B3H 4R2

  10. Biogeography of Marine Algae

    E-Print Network [OSTI]

    Biogeography of Marine Algae David J Garbary, St Francis Xavier University, Antigonish, Nova Scotia and vicariance in establishing distributions and as factors associated with speciation. Since eukaryotic algae. There are many species that are virtually cosmopolitan (e.g. the green alga Enteromorpha intestinalis, the red

  11. 2000 Blackwell Science Ltd. http://www.blackwell-science.com/ddi 113 BIODIVERSITY RESEARCH

    E-Print Network [OSTI]

    Kolasa, Jurek

    and MICHAEL J. RISK3 1 Department of Geology, St Francis Xavier University, PO Box 5000, Antigonish, Nova Scotia, Canada B2G 2W5, 2 School of Geography and Geology, McMaster University, Hamilton, Ontario, Canada, overfishing, destructive fishing practices, oil spills and other forms of anthropogenic damage (Guzman et al

  12. Atmos. Chem. Phys., 3, 17911806, 2003 www.atmos-chem-phys.org/acp/3/1791/ Atmospheric

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ,* 1Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Institut fur Physik der Atmosphare (IPA, Sweden 3Dalhousie University, Department of Physics and Atmospheric Science, Halifax, Nova Scotia, Canada, Germany *Now at: Cooperative Institute for Research in Environmental Sciences (CIRES), University

  13. Dalhousie Office of Sustainability UNIVERSITY

    E-Print Network [OSTI]

    Brownstone, Rob

    Factors for Calculating CO2 Emissions from Combustion of Natural Gas, Petroleum Products, and Biomass: Canadian Default CO2, N20 and CH4 Emission Factors for Transport Fuels Appendix M: Annual Commuting H: Data Quality Tiers for Electricity Appendix I: Nova Scotia Power Emission Factors Appendix J

  14. An alternative to the proposed Demand Side Management program

    E-Print Network [OSTI]

    Hughes, Larry

    habits). Utilities such as Nova Scotia Power have, in some cases for more than 30 years, attempted Power Introduction For over 100 years, electricity has been central to the growth and development and tidal), nuclear, as well as some renewables (including biomass, geothermal, solar, and wind). From acid

  15. CROP SCIENCE, VOL. 51, MARCHAPRIL 2011 585 Birdsfoot trefoil is a perennial forage legume grown for pas-

    E-Print Network [OSTI]

    Pawlowski, Wojtek

    Canada. It is generally well adapted to poorly-drained, acidic, and drought-prone soils, which populations to unselected populations in field trials. Recurrent phenotypic selection was effective; Y.A. Papadopoulos, Agriculture and Agri-Food Canada, Nova Scotia Agri- cultural College, P.O. Box

  16. A Study of Wind Energy Use for Space Heating in Prince Edward Island1 Larry Hughes, Mandeep Dhaliwal, Aaron Long, Nikita Sheth

    E-Print Network [OSTI]

    Hughes, Larry

    ERG/200605 A Study of Wind Energy Use for Space Heating in Prince Edward Island1 Larry Hughes, Mandeep Dhaliwal, Aaron Long, Nikita Sheth Energy Research Group Department of Electrical and Computer Engineering Dalhousie University Halifax, Nova Scotia, Canada 19 April 2006 1 This paper has been accepted

  17. The superluminous SN DES13S2cmm as a signature of a Quark-Nova in a He-HMXB system

    E-Print Network [OSTI]

    Ouyed, Rachid; Koning, Nico

    2015-01-01T23:59:59.000Z

    We show that by appealing to a Quark-Nova (the explosive transition of a neutron star to a quark star) occurring in an He-HMXB system we can account for the lightcurve of the first superluminous SN, DES13S2cmm, discovered by the Dark-Energy Survey. The neutron star's explosive conversion is triggered as a result of accretion from the He star wind. The dense, relativistic, Quark-Nova ejecta in turn triggers nuclear burning of the companion. We find an excellent fit to the bolometric light-curve of SN DES13S2cmm including the late time emission, which we attribute to the interaction between ejecta from the exploding He star (from the incinerated donor) and the surrounding circumstellar material from the companion (from the donor's wind during the pre-explosion era). The main hump in the light-curve is naturally fit by the quark star (the QN compact remnant) spin-down power. QNe occurring in He-HMXB systems could explain the puzzling lack of He-HMXBs expected to be associated with the observed large population o...

  18. Biblioteca Universitria -Novas Aqusies

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    Vecchia Roma, 1988. 155 p. t. ex.: 1BELTRO, Fernanda Barroso. Produo em cincias da motricidade humana

  19. Biblioteca Universitria -Novas aquisies

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    Paulo (SP): Brasiliense, 1994. 93 p. t. ex.: 1ELETROBRÁS. Dicionário da energia elétrica Eletrobrás.: 2REP?RTER Brasil: 10 anos de estrada de terra em 17 grandes reportagens. São Paulo: [s.n.], 2012 209 p. 1 #12;t. ex.: 5TAVARES, Elaine. Em busca da utopia: os caminhos da reportagem no Brasil dos anos

  20. Biblioteca Universitria -Novas aquisies

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    /6 - Ciencias t. ex.: 1CARTAGENA, Sarah Marcela Chinchilla. Reduo de riscos de desastres nas escolas/ [Texto Sarah Marcela Chinchilla Cartagena]. Florianpolis: CEPED/UFSC, 2012. 9 p. ( Reduo de Riscos de

  1. Hubble Space Telescope imaging and ground-based spectroscopy of old nova shells - I. FH Ser, V533 Her, BT Mon, DK Lac, V476 Cyg

    E-Print Network [OSTI]

    C. D. Gill; T. J. O'Brien

    2000-01-06T23:59:59.000Z

    In this paper we report on the first five out of eleven observations in our programme of Hubble Space Telescope (HST) imaging of old nova shells. We present new WFPC2 images of the shells around FH Ser and V533 Her taken in the F656N (Halpha+[NII]) filter. We also show long-slit spectra taken using the William Herschel Telescope (WHT) in La Palma for these objects in the same spectral range. The shell around FH Ser is found to be a prolate ellipsoid of ellipticity 1.3 +/- 0.1 inclined at 62 +/- 4 deg to the line of sight. The shell has an equatorial ring which is found to be due to increased emission in the two [NII] lines rather than Halpha. The expansion velocity, systemic velocity and distance are found to be 490 +/- 20 km/s, -45 km/s and 950 +/- 50 pc. The origin of the [NII] equatorial ring is discussed in the context of a photoionization feature resulting from aspherical illumination by the central source rather than a simple density enhancement. It is possible however that the ring is also in part due to an extremely localised increase in the nitrogen abundance. Similar imaging and spectroscopy of the nova V533 Her reveal a shell of radius 5 +/- 0.7 arcsec with an axial ratio of 1.2 +/- 0.2, expansion velocity of 850 +/- 150 km/s and distance 1250 +/- 300 pc. The shells around BT Mon, DK Lac and V476 Cyg were not detected with HST.

  2. Multi-wavelength Light Curve Model of the One-year Recurrence Period Nova M31N 2008-12a

    E-Print Network [OSTI]

    Kato, Mariko; Hachisu, Izumi

    2015-01-01T23:59:59.000Z

    We present a theoretical light curve model of the recurrent nova M31N 2008-12a, the current record holder for the shortest recurrence period (1 yr). We combined interior structures calculated using a Henyey-type evolution code with optically thick wind solutions of hydrogen-rich envelopes, which give the proper mass-loss rates, photospheric temperatures, and luminosities. The light curve model is calculated for a 1.38 M_sun white dwarf (WD) with an accretion rate of 1.6 \\times 10^{-7} M_sun yr^{-1}. This model shows a very high effective temperature (log T_ph (K) \\geq 4.97) and a very small wind mass-loss rate (\\dot M_wind \\leq 9.3 \\times 10^{-6} M_sun yr^{-1}) even at the maximum expansion of the photosphere. These properties are consistent with the faint optical peak of M31N 2008-12a because the brightness of the free-free emission is proportional to the square of the mass-loss rate. The model well reproduces the short supersoft X-ray turn-on time of 6 days and turnoff time of 18 days after the outburst. Th...

  3. Light Curves of Core-Collapse Supernovae with Substantial Mass Loss using the New Open-Source SuperNova Explosion Code (SNEC)

    E-Print Network [OSTI]

    Morozova, V; Renzo, M; Ott, C D; Clausen, D; Couch, S M; Ellis, J; Roberts, L F

    2015-01-01T23:59:59.000Z

    We present the SuperNova Explosion Code SNEC, an open-source Lagrangian code for the hydrodynamics and equilibrium-diffusion radiation transport in the expanding envelopes of supernovae. Given a model of a progenitor star, an explosion energy, and an amount and distribution of radioactive nickel, SNEC generates the bolometric light curve, as well as the light curves in different wavelength bands assuming black body emission. As a first application of SNEC, we consider the explosions of a grid of 15 Msun (at zero-age main sequence) stars whose hydrogen envelopes are stripped to different extents and at different points in their evolution. The resulting light curves exhibit plateaus with durations of ~20-100 days if >~1.5-2 Msun of hydrogen-rich material is left and no plateau if less hydrogen-rich material is left. The shorter plateau lengths are unlike the Type IIP supernova light curves typically observed in nature. This suggests that, at least for zero-age main sequence masses <~ 20 Msun, hydrogen mass l...

  4. The Expanding Nebular Remnant of the Recurrent Nova RS Ophiuchi (2006): II. Modeling of Combined Hubble Space Telescope Imaging and Ground-based Spectroscopy

    E-Print Network [OSTI]

    Ribeiro, V A R M; Darnley, M J; Harman, D J; Newsam, A M; O'Brien, T J; Bohigas, J; Echevarra, J M; Bond, H E; Chavushyan, V H; Costero, R; Coziol, R; Evans, A; Eyres, S P S; Len-Tavares, J; Richer, M G; Tovmassian, G; Starrfield, S; Zharikov, S V

    2009-01-01T23:59:59.000Z

    We report Hubble Space Telescope imaging, obtained 155 and 449 days after the 2006 outburst of the recurrent nova RS Ophiuchi, together with ground-based spectroscopic observations, obtained from the Observatorio Astron\\'omico Nacional en San Pedro M\\'artir, Baja California, M\\'exico and at the Observatorio Astrof\\'isico Guillermo Haro, at Cananea, Sonora, M\\'exico. The observations at the first epoch were used as inputs to model the geometry and kinematic structure of the evolving RS Oph nebular remnant. We find that the modeled remnant comprises two distinct co-aligned bipolar components; a low-velocity, high-density innermost (hour glass) region and a more extended, high-velocity (dumbbell) structure. This overall structure is in agreement with that deduced from radio observations and optical interferometry at earlier epochs. We find that the asymmetry observed in the west lobe is an instrumental effect caused by the profile of the HST filter and hence demonstrate that this lobe is approaching the observer...

  5. Hospitality, Tourism and Event Management

    E-Print Network [OSTI]

    Liley, David

    Practical cooking Public speaking Responsible Service of Alcohol (RSA) certification Small to medium the best university in Melbourne for teaching quality (2007­2010) and graduate satisfaction (2007, 2008. As a Swinburne graduate you'll be in high demand, with a long menu of career prospects to select from. Swinburne

  6. Neo-Latin News, Volume 63, Numbers 1 & 2

    E-Print Network [OSTI]

    Kallendorf, Craig

    2015-01-01T23:59:59.000Z

    . (William Barker, University of Kings College and Dalhousie University, Halifax, Nova Scotia) ? Salmon Macrins Gedichtsammlungen von 1538 bis 1546. Edi- tion mit Wortindex. Edited by Marie-Franoise Schumann. Hamburger Beitrge zur neulateinischen... Philologie, 9. Berlin and Mnster: LIT, 2013. XX + 507 pp. The book under review is the fourth volume in the series Hamburger Beitrge zur neulateinischen Philologie that focuses on the French Neo-Latin poet Salmon Macrin and the third in which Marie...

  7. THE 2011 ERUPTION OF THE RECURRENT NOVA T PYXIDIS: THE DISCOVERY, THE PRE-ERUPTION RISE, THE PRE-ERUPTION ORBITAL PERIOD, AND THE REASON FOR THE LONG DELAY

    SciTech Connect (OSTI)

    Schaefer, Bradley E.; Landolt, Arlo U. [Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 (United States); Linnolt, Michael [American Association of Variable Star Observers, 49 Bay State Road, Cambridge, MA 02138 (United States); Stubbings, Rod [Tetoora Observatory, Tetoora Road, Victoria (Australia); Pojmanski, Grzegorz [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa (Poland); Plummer, Alan [Variable Stars South, Linden Observatory, 105 Glossop Road, Linden, NSW (Australia); Kerr, Stephen [American Association of Variable Star Observers, Variable Stars South, Astronomical Association of Queensland, 22 Green Avenue, Glenlee, Queensland (Australia); Nelson, Peter [Ellinbank Observatory, 1105 Hazeldean Road, Ellinbank 3821, Victoria (Australia); Carstens, Rolf [American Association of Variable Star Observers, Variable Stars South, CBA, Geyserland Observatory, 120 Homedale Street, Rotorua 3015 (New Zealand); Streamer, Margaret [Lexy's Palace Observatory, 3 Lupin Place, Murrumbateman, NSW (Australia); Richards, Tom [Variable Stars South, Pretty Hill Observatory, P.O. Box 323, Kangaroo Ground 3097, Victoria (Australia); Myers, Gordon [Center for Backyard Astrophysics, Columbia University, 538 West 120th Street, New York, NY 10027 (United States); Dillon, William G. [American Association of Variable Star Observers, 4703 Birkenhead Circle, Missouri City, TX 77459 (United States)

    2013-08-10T23:59:59.000Z

    We report the discovery by M. Linnolt on JD 2,455,665.7931 (UT 2011 April 14.29) of the sixth eruption of the recurrent nova T Pyxidis. This discovery was made just as the initial fast rise was starting, so with fast notification and response by observers worldwide, the entire initial rise was covered (the first for any nova), and with high time resolution in three filters. The speed of the rise peaked at 9 mag day{sup -1}, while the light curve is well fit over only the first two days by a model with a uniformly expanding sphere. We also report the discovery by R. Stubbings of a pre-eruption rise starting 18 days before the eruption, peaking 1.1 mag brighter than its long-time average, and then fading back toward quiescence 4 days before the eruption. This unique and mysterious behavior is only the fourth known (with V1500 Cyg, V533 Her, and T CrB) anticipatory rise closely spaced before a nova eruption. We present 19 timings of photometric minima from 1986 to 2011 February, where the orbital period is fast increasing with P/ P-dot =+313,000 yr. From 2008 to 2011, T Pyx had a small change in this rate of increase, so that the orbital period at the time of eruption was 0.07622950 {+-} 0.00000008 days. This strong and steady increase of the orbital period can only come from mass transfer, for which we calculate a rate of (1.7-3.5) Multiplication-Sign 10{sup -7} M{sub Sun} yr{sup -1}. We report 6116 magnitudes between 1890 and 2011, for an average B = 15.59 {+-} 0.01 from 1967 to 2011, which allows for an eruption in 2011 if the blue flux is nearly proportional to the accretion rate. The ultraviolet-optical-infrared spectral energy distribution is well fit by a power law with f{sub {nu}}{proportional_to}{nu}{sup 1.0}, although the narrow ultraviolet region has a tilt with a fit of f{sub {nu}}{proportional_to}{nu}{sup 1/3}. We prove that most of the T Pyx light is not coming from a disk, or any superposition of blackbodies, but rather is coming from some nonthermal source. We confirm the extinction measure from IUE with E(B - V) = 0.25 {+-} 0.02 mag.

  8. Baleen whale spatial patterns in the Scotia Sea during January and February 2003

    E-Print Network [OSTI]

    Sirovic, Ana; Hildebrand, John A; Thiele, Deborah

    2006-01-01T23:59:59.000Z

    steered away from the winter pack ice zone by the bathymetryalong the outer edge of the ice pack (southern right, blue,

  9. MONITORING STRATIFICATION AND CURRENTS AT THE CONTINENTAL SLOPE OF THE SCOTIA SEA, ANTARCTICA

    E-Print Network [OSTI]

    Thornton, Melanie 1989-

    2011-05-02T23:59:59.000Z

    over tidal to seasonal time scales. 11 Figure 5. Vertical Sections for Hydrographic Stations near 53?W. Vertical sections of potential temperature (?C), salinity and neutral density (kg m-3) for 2009 ACROSS hydrographic stations near 53... with the ?-S scatter from moored instruments and nearby CTD hydrographic stations from the ACROSS (2009) and ESASSI (2008) cruises. Tidal components were removed from the half-hourly raw current data by applying a 40- hour low pass filter. Then inferences...

  10. Application to Export Electric Energy OE Docket No. EA-355 Scotia Capital

    Office of Environmental Management (EM)

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

  11. Differences in the fast optical variability of the dwarf nova V1504 Cyg between quiescence and outbursts detected in Kepler data and simulations of the rms-flux relations

    E-Print Network [OSTI]

    Dobrotka, A

    2015-01-01T23:59:59.000Z

    An optical light curve of SU UMa type dwarf nova V1504 Cyg taken by Kepler was analysed in order to study fast optical variability (flickering). We calculated power density spectra and rms-flux relations for two different stages of activity, i.e. quiescence and regular outbursts. A multicomponent power density spectrum with two break frequencies was found during both activity stages. The rms-flux relation is obvious only in the quiescent data. However, while the collection of all outburst data do not show this variability, every individual outburst does show it in the majority of cases keeping the rms value approximately in the same interval. Furthermore, the same analysis was performed for light curve subsamples taken from the beginning, middle and the end of the supercycle both for quiescence and regular outbursts. Every light curve subsample shows the same multicomponent power density spectrum. The stability of the break frequencies over the supercycle can be confirmed for all frequencies except for the hi...

  12. Semantic Online Tourism Market Monitoring Norbert Walchhofera

    E-Print Network [OSTI]

    descriptions, distribution, promotions, and price developments in a timely and suf- ficiently accurate manner

  13. Horticultural Survey of Gulf Coast.

    E-Print Network [OSTI]

    Green, Edward C.

    1907-01-01T23:59:59.000Z

    , onions. Brownsvil1e.-lst, cabbage; 2nd, onions; 3rd, Irish potatoes; 4th, CU- cumbers. Sarlta Maria.-lst, onions; 2nd, cucumbers; 3rd, beans; 4th, cabbage. While there is .some difference of opinion among inaiuiduals as to the relative value..., and to Halifax, Nova Scotia, as well as to other markets less distant. SANTA MARIA. For rapid development from 'brush and cactus to in- tensified profitable gardening Kingsville made a two-year record which probably had never been equalled up to that time...

  14. Horticultural Survey of Gulf Coast.

    E-Print Network [OSTI]

    Green, Edward C.

    1907-01-01T23:59:59.000Z

    , onions. Brownsvil1e.-lst, cabbage; 2nd, onions; 3rd, Irish potatoes; 4th, CU- cumbers. Sarlta Maria.-lst, onions; 2nd, cucumbers; 3rd, beans; 4th, cabbage. While there is .some difference of opinion among inaiuiduals as to the relative value..., and to Halifax, Nova Scotia, as well as to other markets less distant. SANTA MARIA. For rapid development from 'brush and cactus to in- tensified profitable gardening Kingsville made a two-year record which probably had never been equalled up to that time...

  15. Nova opisna slovnica zilj?ine

    E-Print Network [OSTI]

    Greenberg, Marc L.

    2010-01-01T23:59:59.000Z

    podaja sicer tradicionalni strukturni opis, razporejen (za 1. Uvodom in pred 7. Nare?nimi besedili) po ravninah slovni?ne raz?lembe: 2. Glasoslovje, 3. Oblikoglasje, 4. Imensko obliko- slovje, 5. Glagolsko oblikoslovje, 6. Opombe k skladnji... fonema /b, d/ vselej zapisana s tema ?rkama, ?eprav je alofonija znatna; klju?en je potemtakem natan?en opis predvidljive variacije 1 Pronk, Tijmen. 2009. The Slovene Dialect of Egg and Potschach in the Gailtal, Austria (= Studies in Slavic and General...

  16. Skip to content NovaScience

    E-Print Network [OSTI]

    Rogers, John A.

    . "We can lift off from the wafer just the active layers," Rogers says, describing the process sensor that could be used to guide a surgeon's hand during a procedure or to form an artificial sensory

  17. Novas Aplicaes das Matemticas na Indstria

    E-Print Network [OSTI]

    Saeki, Osamu

    Arithmetic-Cryptography Kao Corporation Graph Theory-Optimization OLM Digital, Inc. CG of animation Geometry. MAZDA MOTOR CORP. KDDI HITACHI IBM Japan ETRI, Korea OLM Digital, Inc. & WETA Digital, New Zealand. Mitsubishi Research Inst. Inc. MAZDA MOTOR CORP. KDDI HITACHI IBM Japan ETRI, Korea OLM Digital, Inc. & WETA

  18. Nova Science Publishers, Inc. Hauppauge, New York

    E-Print Network [OSTI]

    Hossain, M. Enamul

    . INTRODUCTION The impact of viscosity in reservoir is directly related to oil production. The mobility Technology, Volume 1, Issue 4, 2007 A Novel Memory Based Stress-Strain Model for Reservoir Characterization Science and Sustainable Technology, Volume 1, Issue 4, 2007 A Novel Memory Based Stress-Strain Model

  19. A NOVA ECONOMIA: NANOTECNOLOGIA Paulo J. Ferreira*

    E-Print Network [OSTI]

    Ferreira, Paulo J.

    esteja ainda na sua infância, já é possível demonstrar que esta área terá um impacto tremendo nos vários aspectos de vida humana, tais como a saúde, o ambiente, a energia, os transportes, a tecnologia de nanotecnologia deste tipo. Qual vai ser então o impacto económico da nanotecnologia? As primeiras estimativas

  20. NOVAS REGRAS CONSTRUO REABILITAO URBANAAMEAASEGURANA DOS MORADORES

    E-Print Network [OSTI]

    Instituto de Sistemas e Robotica

    Arquite - tos, que pergunta: "? a vida das pessoas que está em causa. Num sismo, a eficiência energética e edifícios, estamos a aumentar o risco e a elevar o número de mortes em caso de sismo. Se já caem vazios

  1. NovaTorque Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcerns Jumpsource History ViewTexas:Notrees 1B (GE

  2. NovaTorque | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcerns Jumpsource History ViewTexas:Notrees 1B (GENovaTorque Jump

  3. Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism

    E-Print Network [OSTI]

    . The increasing popularity of sustainability has led to differing understandings of what sustainability really@nccommerce.com. 3. (July 23, 2008). GETTING TO RECYCLING AT WORK Recycling is a basic part of any efforts to

  4. Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism

    E-Print Network [OSTI]

    Energy Efficient Light Bulbs Can Still Be Inefficient Led Lights Time Has Come N.C. GreenTravel *NC *Don't have recycling bins? There's help for that Recycling Recycling, the Typical Starting Point The Challenges of Recycling Getting Your Recycling Program into Shape What Can be Recycled Recycling at Work

  5. APPEL A COMMUNICATIONAPPEL A COMMUNICATIONAPPEL A COMMUNICATIONAPPEL A COMMUNICATION (Problmatique finale prvue pour(Problmatique finale prvue pour(Problmatique finale prvue pour(Problmatique finale prvue pour 15151515 septembre 2009)septembre 2009)septem

    E-Print Network [OSTI]

    Jeanjean, Louis

    :::: (Hydrocarbures / Tourisme / Finances)(Hydrocarbures / Tourisme / Finances)(Hydrocarbures / Tourisme / Finances)(Hydrocarbures

  6. Facilitating communities in designing and using their own community health impact assessment tool

    SciTech Connect (OSTI)

    Cameron, Colleen, E-mail: accamero@stfx.c [Coady International Institute, St. Francis Xavier University, P.O. Box 5000, Antigonish NS B2G 2W5 (Canada); Ghosh, Sebanti, E-mail: sebantiasha@rediffmail.co [Association for Social and Health Advancement (ASHA), BE-135, Sector-1, Salt Lake City, Kolkata-700 064 (India); Eaton, Susan L., E-mail: susan.eaton@ns.sympatico.c [People Assessing Their Health (PATH) Network, 61 Brookland Street, Antigonish NS B2G 1V8 (Canada)

    2011-07-15T23:59:59.000Z

    Reducing health inequities and improving the health of communities require an informed public that is aware of the social determinants of health and how policies and programs have an impact on the health of their communities. People Assessing Their Health (PATH) is a process that uses community-driven health impact assessment to build the capacity of people to become active participants in the decisions that affect the well-being of their community. The PATH process is both a health promotion and a community development approach that builds people's ability to bring critical analysis to a situation and to engage in effective social action to bring about desired change. Because it increases analytical skills and provides communities with their own unique tool to assess the potential impact of projects, programs or policies on the health and well-being of their community it is an empowering process. PATH was originally used in three communities in northeastern Nova Scotia, Canada in 1996 when the Canadian health care system was being restructured to a more decentralized system. Since then it has been used in other communities in Nova Scotia and India. This paper will describe the PATH process and the use of the community health impact assessment as well as the methodology used in the PATH process. The lessons learned from PATH's experiences of building capacity among the community in Canada and India will be presented.

  7. -e Series Models 25 and 26 NovaWin/NovaWin-CFR

    E-Print Network [OSTI]

    Alpay, S. Pamir

    , lamps, fuses, valve plungers, seals, O-rings & other seals, hoses, flexible tubing, thermocouple vacuum tubes, filters, oils and other fluids. Products sold by Quantachrome under their own brand name

  8. Examining the Antecedents of Behavioral Intentions in a Tourism Context

    E-Print Network [OSTI]

    Huang, Yu-Chin

    2010-07-14T23:59:59.000Z

    from traveling to Texas, and how their reference groups affected their travel decision to Texas. Totally, 1,448 completed surveys were received and utilized for analysis which included both visitors and non-visitors. The data analysis procedures...

  9. LITERARY DESTINATIONS: MARK TWAIN'S HOUSES AND LITERARY TOURISM

    E-Print Network [OSTI]

    Lowe, Hilary Iris

    2009-12-10T23:59:59.000Z

    Mark Twain has been commemorated for more than eighty-five years at his various houses. His birthplace in Florida, Missouri, his boyhood home in Hannibal, Missouri, his adult home in Hartford, Connecticut, and his summer retreat at Quarry Farm...

  10. Democratizing global tourism or designing diversity to reach harmony

    E-Print Network [OSTI]

    Radoman, Slobodan, M. Arch. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    The largest lake in the Balkans, the largest bird "airport" in Europe, multinational, protected under the Ramsar Convention, a candidate for the UNESCO transboundary biosphere enlisting, the Skadar Lake is yet, economically ...

  11. Dalby Forest Project Boosting sustainable tourism in Yorkshire

    E-Print Network [OSTI]

    manager and went over budget. · Completing the construction and finishing the snagging list has been. With an attractively refurbished courtyard, a sustainably constructed Visitor Centre, and a vast network of cycle sustainability in building construction and operation actions and achievements · Phase 1: Dalby Courtyard £1.1m

  12. African History: The Rise and Decline of Academic Tourism

    E-Print Network [OSTI]

    Zeleza, Dr. Tiyambe

    1983-01-01T23:59:59.000Z

    essay :Y E. Laclau, "Feudalism and Capitalism in latincommunism', or sees 'feudalism' and the ' Asiatic mode of ~

  13. Effectiveness of internet information for park, recreation and tourism practitioners

    E-Print Network [OSTI]

    Patterson, Joni Denise

    2004-09-30T23:59:59.000Z

    of the PRT Planning Web site by experts in the field of PRT Sciences. 3) Inspect differences in the information needs and use between rural and urban PRT practitioners. 4) Examine factors contributing to the flow experience while utilizing the PRT Planning...

  14. Effectiveness of internet information for park, recreation and tourism practitioners

    E-Print Network [OSTI]

    Patterson, Joni Denise

    2004-09-30T23:59:59.000Z

    of the PRT Planning Web site by experts in the field of PRT Sciences. 3) Inspect differences in the information needs and use between rural and urban PRT practitioners. 4) Examine factors contributing to the flow experience while utilizing the PRT Planning...

  15. Environmental Impacts of Tourism in Khao Yai National Park, Thailand

    E-Print Network [OSTI]

    Phumsathan, Sangsan

    2011-10-21T23:59:59.000Z

    research in KYNP, the most common bio-physical impacts include soil compaction, removal of humus layer, erosion, plant damage, soil and root exposure, water quality deterioration, disturbance and feeding wildlife. Other environmental impacts include noise...

  16. The Antecedents and Consequences of Price Fairness in Tourism

    E-Print Network [OSTI]

    Chung, Jin Young

    2012-02-14T23:59:59.000Z

    research. The purpose of this study was to examine the antecedents and consequences of tourists? perceived price fairness of the ancillary revenue (i.e. extra fees of airlines). In particular, a conceptual model was based on Weiner's (1980) attribution...

  17. Dependency and development in northern Thailand's tourism industry

    E-Print Network [OSTI]

    Lacher, Richard Geoffrey

    2009-05-15T23:59:59.000Z

    (consisting of travel agency fees, tour guide income, and gas) and village income for a two person trip. .................... 20 4 Spending on a two person Tom Lod trip.................................................... 21 5 Total revenue....................................................................... 42 Laissez-Faire ................................................................................... 43 Forming a Cooperative.................................................................... 45 Charging Substantial Entrance Fees...

  18. Hawaii Department of Business, Economic Development, and Tourism | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG| OpenInformationHartsville,NewOpen

  19. Climate Change Adaptation and Mitigation in the Tourism Sector | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovationin UrbanCity ofCityClean EconomyLLC SmartTracker

  20. Communities, Conservation, and Tourism-Based Development: Can Community-Based Nature Tourism Live Up to Its Promise?

    E-Print Network [OSTI]

    Turner, Robin

    2006-01-01T23:59:59.000Z

    ofneoliberalisminSouthAfrica:learning from a ?leastof Exclusion in South Africa (Research Report No. oflandreforminSouthAfrica. Re? viewofAfrican

  1. Silurian K-bentonites in North America and northwestern Europe: A trans-Atlantic comparison

    SciTech Connect (OSTI)

    Bergstroem, S.M. (Ohio State Univ., Columbus, OH (United States). Dept. of Geological Sciences); Kolata, D.R. (Illinois State Geological Survey, Champaign, IL (United States)); Huff, W.D. (Univ. of Cincinnati, OH (United States). Dept. of Geology)

    1993-03-01T23:59:59.000Z

    Little published information is available about Silurian K-bentonites in North America, but a few occurrences of such beds are known from the Great lakes region and Nova Scotia. Only a small number of beds are recorded from the former area, but the Nova Scotia occurrences include about 20 beds of Llandoverian age, the most extensive sequence of Silurian K-bentonites known in North America. In contrast, more than 150 K-bentonites occur in the Silurian successions in Baltoscandia and the British Isles. Virtually all beds in North America are of Llandoverian age. There are numerous beds of that age also in Norway, Denmark (Bornholm), the British Isles, and the Swedish mainland but the successions in Estonia, Gotland, and the British Isles also include many K-bentonites of Wenlockian and Ludlovian age. Apparently, no Pridolian beds are known in North America and northwestern Europe. Many graptolite-dated collections from more than 20 sections in Baltoscandia and from many sections in the British Isles suggest that several single beds, or complexes of beds, can be traced regionally and hence have event-stratigraphic potential. The relatively few beds known from North America all occur in biostratigraphic intervals containing K-bentonites in Europe, and it is possible that some of these beds may have a common source. The much larger number of beds in northwestern Europe compared with North America may be taken as an indication that the source area of the European K-bentonites was closer to Baltica than to Laurentia, and probably located somewhere in the northern Iapetus.

  2. SNEWS: The SuperNova Early Warning System

    E-Print Network [OSTI]

    Kate Scholberg

    1999-11-18T23:59:59.000Z

    World-wide, several detectors currently running or nearing completion are sensitive to a prompt core collapse supernova neutrino signal in the Galaxy. The SNEWS system will be able to provide a robust early warning of a supernova's occurrence to the astronomical community using a coincidence of neutrino signals around the world. This talk describes the nature of the neutrino signal, detection techniques and the motivation for a coincidence alert. It describes the implementation of SNEWS, its current status, and its future, which can include gravitational wave detectors.

  3. NoVaS Transformations: Flexible Inference for Volatility Forecasting

    E-Print Network [OSTI]

    Politis, Dimitris N; Thomakos, Dimitrios D

    2008-01-01T23:59:59.000Z

    estimators of the parameters in GARCH processes, Annals ofand Switching-Regime GARCH Models, Stochastic Processes andParameter Changes in GARCH Models, Journal of Econo-

  4. Nova Publishers Smart Grid: Technologies, Applications and Management Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    a particularly interesting problem with the introduction of dynamic electricity energy pricing models, since period of a month, which is comprised of both an energy price component and a demand price component. Due to the characteristics of the realistic electricity price function and the energy storage capacity limitation

  5. alimentos fortificados nova: Topics by E-print Network

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

    appeared in M31 globular clusters. Our light curve models, based on the optically thick wind theory, reproduce well both the X-ray turn-on and turnoff times with the white dwarf...

  6. Biblioteca Universitria-Novas Aquisies V. 6 N. 9 2014

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    , Marta Helena. Energia e desenvolvimento no Brasil. [S.l.]: ELETROBRAS, 1987. 324 p. Quantidade : 1 BRASIL. Ministério das Cidades. Ações integradas de urbanização de assentamentos precários : síntese do ESTRAT?GICOS (BRASIL). Avaliação do programa de apoio à implantação e modernização de centros vocacionais

  7. Revista Electrnica Nova Scientia Propagacin temporal de algunas enfermedades

    E-Print Network [OSTI]

    Cipolatti, Rolci

    of an incubation period for the contagious infection. The effects of public health campaigns on the spread form, the dynamics of transmission for different types of contagious diseases (see, for instance [6 in the formulation and application of deterministic models to the study of contagious diseases, was the Dutch

  8. Overview of the SuperNova/Acceleration probe (SNAP)

    E-Print Network [OSTI]

    2002-01-01T23:59:59.000Z

    from 42 High-Redshift Supernovae, Astrophys J. 517, pp.Observational Evidence from Supernovae for an AcceleratingEnergy with Type Ia Supernovae and Large-Scale Structure,

  9. Petra Nova - W.A. Parish Project | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO Overview OCHCO Overview OCHCO OCHCOControlGuide to a BalancedPersonnel Security

  10. FEI Nova 200 Dual-Beam SEM/FIB

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. Category UC-lFederal Columbia River Risk Based

  11. FEI Nova 200 Dual-Beam SEM/FIB

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. Category UC-lFederal Columbia River Risk BasedCurrent Research

  12. FEI Nova 200 Dual-Beam SEM/FIB

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. Category UC-lFederal Columbia River Risk BasedCurrent ResearchFIB

  13. NOVA NERSC's Online VASP Application Annette Greiner Shreyas Cholia

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gif Directorate1,Stewardship now661NONLINEARRPSEA~ ~ . _

  14. Cataventos Novas Energias Brasil Ltda | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergy Offshore Place: Spain Sector:

  15. Fermilab | Newsroom | Press Releases | February 2014: NOvA Images

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb. 13, 2013Focus GroupDown as FermilabShow atNOvA:

  16. Fermilab | Newsroom | Press Releases | March 2013: NOvA Photos

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb. 13, 2013Focus GroupDown asbolstersthatNOvA: photos

  17. Vis Nova Trading GmbH | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin BaxinUmweltVillage ofInformationVineyardEnergyViridas

  18. Sandia Energy - Mark Boslough Featured in NOVA Special about the

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementing Nonlinear757Kelley Ruehl Home Kelley

  19. Geradora de Energia Nova Fatima | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/Exploration < Geothermal Jump to:Geprowind Gerenciamento

  20. On the spreading of Weddell Sea deep water in the southwestern Atlantic Ocean

    E-Print Network [OSTI]

    Locarnini, Ricardo A

    1991-01-01T23:59:59.000Z

    Sv (1 Sverdrup = ls10' m'/sec) of WSDW flow from the Scotia Sea into the Georgia Basin. The route through the Scotia Sea, overlooked in previous descriptions of the ocean bottom circulation, can provide a considerable proportion of the cold water... financially supported me during my time at Texas A&M University. TABLE OF CONTENTS Page INTRODUCTION Background. Objectives. Dara and Methods. . BOTTOM CIRCULATION. The South Sandwich Trench Route. The Scotia Sea Route. ll 11 20 THE SCOTIA SEA...

  1. LES POINTS RETENIR Avant leur entre en MST ou en IUP Tourisme, les tudiants ont essentiellement suivi un BTS Tourisme et Loisirs (43,5%)

    E-Print Network [OSTI]

    Sart, Remi

    personnes rellement contac- tes) s'levant 57,8%, le taux de rponse brut (nombre de rponses sur l

  2. The Hawai'ian spinner dolphin, Stenella longirostris: effects of tourism

    E-Print Network [OSTI]

    Forest, Anna Marie

    2001-01-01T23:59:59.000Z

    Human activities and spinner dolphin behavior were observed in Kealake'kua Bay, Kona coast, Hawai'i, from 28 August, 1993 to 7 July, 1994. Data were collected from an observation site 55 m above mean low water on a steep slope at the eastern edge...

  3. Dark tourism: understanding visitor motivation at sites of death and disaster

    E-Print Network [OSTI]

    Yuill, Stephanie Marie

    2004-09-30T23:59:59.000Z

    , numerous sites of death and disaster attract millions of visitors from all around the world: Auschwitz-Birkenau, Anne Frank's House, Graceland, Oklahoma City, Gettysburg, Vimy Ridge, the Somme, Arlington National Cemetery. The list grows each year...

  4. Advocacy Coalitions in East European Sex Tourism: The Case of Latvia

    E-Print Network [OSTI]

    Dean, Laura A.

    2011-12-31T23:59:59.000Z

    The widening of the European Union and the emergence of budget airlines have brought with them a host of challenges to new member states like Latvia. A result of the economic polarization and its disproportionate effect ...

  5. Examining the antecedents and structure of customer loyalty in a tourism context

    E-Print Network [OSTI]

    Li, Xiang

    2009-06-02T23:59:59.000Z

    The purpose of this study was to gain an understanding of the structure and antecedents of cruise passengers' loyalty. Specifically, the study examined the dimensionality of the loyalty construct. Moreover, the study investigated the utility...

  6. 2011 SUSTAINABLE COASTAL TOURISM FELLOWS Kimberly Burnett, Ph.D. | College of Social Sciences

    E-Print Network [OSTI]

    collaborations among the previously separate disciplines of oceanography, microbiology, ecology and genomics

  7. Cultural Tourism for Salvador, Brazil: A Viable Means of Community Economic Development

    E-Print Network [OSTI]

    Ciccone, Adrieannette

    2012-01-01T23:59:59.000Z

    until the 1950s when petrochemical industries located inby the government. The petrochemical industry and governmenta leading Brazilian petrochemical company arrived in

  8. An econometric approach to understanding the international tourism flows from Japan to Taiwan

    E-Print Network [OSTI]

    Chang, Chun-Ling

    1993-01-01T23:59:59.000Z

    , and others which may influence the price-demand relationship as well as people's travel decisions. Meanwhile, some other researchers (Loeb 1982; Mieczkouski 1987; Var & Mohammad & Icoz 1990; Blaine & Mohammad 1991) argued that tourists' income, leisure... 1982; Var & Mohammad & Icoz 1990; Anastasopoulos 1991; Lee & Var & Blaine 1993). Nonetheless, viewing the ratio of price index among countries have been verified as an insignificant factor in many countries (Lee &. Var &. Blaine 1993). Lee & Var...

  9. A Master Plan for Sustainable Tourism Development Koh Lanta Yai, Krabi Province

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    an environmentally-safer sanitary landfill, (as opposed to aand floodplains. Because landfills result in creation oftaken to provide adequate landfill liners. During landfill

  10. The Texas Main Street Program: a development force integrating historic preservation and tourism

    E-Print Network [OSTI]

    Ranwala, Don Sujeewa Devapriya

    1993-01-01T23:59:59.000Z

    , this approach relies on long term monitoring and measurement which has made an EIA study an expensive and time consuming process with uncertainties of measurement and methodology (Shopley and Fuggle, 1984). Green, Hunter and Moore (1990) have proposed... questionnaires during the year of 1992. The results are in table 1. We have considered only the responses of short term visitors who are US citizens. According to this survey visiting historic sites (51. 796) was second only to shopping (59. 696...

  11. A Master Plan for Sustainable Tourism Development Koh Lanta Yai, Krabi Province

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    0.19-0.52 kg/ cap/day and composting) then very little wouldsystem for recycling, composting, and disposal of solidand village-level composting. However, these practices need

  12. Examining the antecedents and structure of customer loyalty in a tourism context

    E-Print Network [OSTI]

    Li, Xiang

    2009-06-02T23:59:59.000Z

    The purpose of this study was to gain an understanding of the structure and antecedents of cruise passengers' loyalty. Specifically, the study examined the dimensionality of the loyalty construct. Moreover, the study ...

  13. The economic benefits of malaria elimination: do they include increases in tourism?

    E-Print Network [OSTI]

    Modrek, Sepideh; Liu, Jenny; Gosling, Roland; Feachem, Richard GA

    2012-01-01T23:59:59.000Z

    case because of its location on Hispaniola Island.97% of malaria cases on Hispaniola occur in DR s neighbour,

  14. Economic and environmental equity in the U.S. nonmetropolitan tourism and recreation dependent communities

    E-Print Network [OSTI]

    Lee, Sang Kwon

    2007-04-25T23:59:59.000Z

    economic inequality of metropolitan areas and counties (Cloutier 1997; Levernier, Patridge, and Rickman 1998; Nielsen and Alderson 1997). Nielson and Alderson (1997) found the continued importance of the Kuznetsian pattern of declining inequality.... Study Areas... Method of Analysis.. Data Sources. V FINDINGS Income Inequality Comparison Determinants of Income Inequality. VI DISCUSSION AND CONCLUSIONS...

  15. Aesthetic responses to urban greenway trail corridors: Implications for sustainable development in tourism and recreation settings

    E-Print Network [OSTI]

    Chon, Jin Hyung

    2005-08-29T23:59:59.000Z

    that viewed two urban greenway trail corridors. Each trail had three treatments including the existing trail condition, a manipulated trail condition, and a reverse in direction of the existing trail condition. Analyses were conducted to 1) identify...

  16. Justice and Fairness in Tourism: A Grounded Theory Study of Cultural Justice in Quintana Roo, Mexico

    E-Print Network [OSTI]

    Camargo Ortega, Blanca Alejandra

    2012-07-16T23:59:59.000Z

    (Instituto Nacional de Estad?stica y Geograf?a [INEGI], 2008). In Cozumel and Playa del Carmen, Maya people represent 20% and 15% of the total population respectively (Enciclopedia de los Municipios de M?xico, 2008). 6 locations within and outside...

  17. Present and future climate resources for various types of tourism in the Bay of Palma, Spain

    E-Print Network [OSTI]

    Romero, Romu

    such as solar heat load, heat loss by convection (i.e. wind), heat loss by evaporation (i.e. perspiration), long calculation The Rayman model accounts for the integrated body-atmosphere energy budget scheme by means-wave radiation exchanges and metabolic heat (i.e. level of activity). After computing Tmrt, the Physiological

  18. Smartphone-Mediated Tourist Experiences: Understanding the Influence of Augmented Reality (AR) Applications in Tourism

    E-Print Network [OSTI]

    Anuar, Faiz Izwan

    2013-04-25T23:59:59.000Z

    fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee Ulrike Gretzel Co-Chair of Committee Tazim B. Jamal Committee Members, Frank M. Shipman III Amarnath Banerjee Head of Department, Gary Ellis... the course of this research. I would also like to extend my gratitude to Dr. Gary Ellis, Dr. Shafer, Dr. Outley, Dr. Kyle, and other faculty members in the department for the support, assistance, and friendship. You have made my stay in Aggieland a great...

  19. Intangible Heritage and Tourism Development at the Tsodilo World Heritage Site

    E-Print Network [OSTI]

    Giraudo, Rachel Faye

    2011-01-01T23:59:59.000Z

    for providing me with GIS shapefiles relating to Tsodilo. Atalready acquired GIS shapefiles for the areas orthographic

  20. Delegation in Tourism Decision Making: Toward an Understanding of the Role of Social Surrogate

    E-Print Network [OSTI]

    Stone, Matthew John

    2014-07-30T23:59:59.000Z

    : whether or not to go. Thus, they may leave the planning, including destination, hotel, and dining choices, to someone else. Some may simply acquiesce with travel choices made by others, while many may simply enjoy the experience or the company... individually (Decrop, 2006; Gitelson & Kerstetter, 1995). In fact, many travel decisions may have been made by others. Thus, to determine why individuals visited a destination or a restaurant may have little to do with their own travel or dining preferences...

  1. Direct Characterization of Airborne Particles Associated with Arsenic-rich Mine Tailings: Particle Size Mineralogy and Texture

    SciTech Connect (OSTI)

    M Corriveau; H Jamieson; M Parsons; J Campbell; A Lanzirotti

    2011-12-31T23:59:59.000Z

    Windblown and vehicle-raised dust from unvegetated mine tailings can be a human health risk. Airborne particles from As-rich abandoned Au mine tailings from Nova Scotia, Canada have been characterized in terms of particle size, As concentration, As oxidation state, mineral species and texture. Samples were collected in seven aerodynamically fractionated size ranges (0.5-16 {micro}m) using a cascade impactor deployed at three tailings fields. All three sites are used for recreational activities and off-road vehicles were racing on the tailings at two mines during sample collection. Total concentrations of As in the <8 {micro}m fraction varied from 65 to 1040 ng/m{sup 3} of air as measured by proton-induced X-ray emission (PIXE) analysis. The same samples were analysed by synchrotron-based microfocused X-ray absorption near-edge spectroscopy ({micro}XANES) and X-ray diffraction ({micro}XRD) and found to contain multiple As-bearing mineral species, including Fe-As weathering products. The As species present in the dust were similar to those observed in the near-surface tailings. The action of vehicles on the tailings surface may disaggregate material cemented with Fe arsenate and contribute additional fine-grained As-rich particles to airborne dust. Results from this study can be used to help assess the potential human health risks associated with exposure to airborne particles from mine tailings.

  2. Late Holocene Radiocarbon Variability in Northwest Atlantic Slope Waters

    SciTech Connect (OSTI)

    Sherwood, O; Edinger, E; Guilderson, T P; Ghaleb, B; Risk, M J; Scott, D B

    2008-08-15T23:59:59.000Z

    Deep-sea gorgonian corals secrete a 2-part skeleton of calcite, derived from dissolved inorganic carbon at depth, and gorgonin, derived from recently fixed and exported particulate organic matter. Radiocarbon contents of the calcite and gorgonin provide direct measures of seawater radiocarbon at depth and in the overlying surface waters, respectively. Using specimens collected from Northwest Atlantic slope waters, we generated radiocarbon records for surface and upper intermediate water layers spanning the pre- and post bomb-{sup 14}C eras. In Labrador Slope Water (LSW), convective mixing homogenizes the pre-bomb {Delta}{sup 14}C signature (-67 {+-} 4{per_thousand}) to at least 1000 m depth. Surface water bomb-{sup 14}C signals were lagged and damped (peaking at {approx} +45{per_thousand} in the early 1980s) relative to other regions of the northwest Atlantic, and intermediate water signals were damped further. Off southwest Nova Scotia, the vertical gradient in {Delta}{sup 14}C is much stronger. In surface water, pre-bomb {Delta}{sup 14}C averaged -75 {+-} 5{per_thousand}. At 250-475 m depth, prebomb {Delta}{sup 14}C oscillated quasi-decadally between -80 and -100{per_thousand}, likely reflecting interannual variability in the presence of Labrador Slope Water vs. Warm Slope Water (WSW). Finally, subfossil corals reveal no systematic changes in vertical {Delta}{sup 14}C gradients over the last 1200 years.

  3. Advances in the development of energy efficient technologies: Sea Water Air Conditioning (SWAC)

    SciTech Connect (OSTI)

    Coony, J.E. [Boston Pacific Co., Inc., Washington, DC (United States)

    1996-11-01T23:59:59.000Z

    Sea water air conditioning (SWAC) is a cost effective and environmentally friendly alternative to and/or enhancement of air conditioning from mechanical chillers. SWAC pumps cold sea water from the appropriate ocean depths (50 to 3,000 feet depending on the climate and local characteristics) to the shore where it replaces (by direct cooling) or enhances (through use as condenser water) large mechanical chillers found in coastal facilities. SWAC direct cooling uses less than twenty per cent of the electricity of a mechanical chiller and uses no refrigerants whatsoever. Indirect cooling also offers substantial energy savings. Both systems dispense with the need for a cooling tower. Technical advances over the last twenty years in corrosion resistant alloys (titanium or aluminum), bio-fouling deterrence, and deep ocean pipeline deployment allow SWAC installations to use reliable, off-the-shelf technology. SWAC works in a variety of climates (existing installations are in Hawaii and Halifax, Nova Scotia), giving it significant domestic and international potential. Economy-of-scale advantages make it attractive to district cooling schemes.

  4. The potential source of dissolved aluminum from resuspended sediments to the North Atlantic deep water

    SciTech Connect (OSTI)

    Moran, S.B.; Moore, R.M. (Dalhousie Univ., Halifax, Nova Scotia (Canada))

    1991-10-01T23:59:59.000Z

    Laboratory and field studies were conducted to investigate the significance of resuspended sediments as a source of dissolved Al to the deep northwest Atlantic. Sediment resuspension experiments demonstrate the effect on dissolved Al concentration (initially 11 nM) of adding natural suspended sediments (ca. 0.1-10 mg/L) to seawater. The concentration of dissolved Al increased by the resuspension of sediments; for example, addition of 0.15 mg/L sediments caused dissolved Al to increase by 10 nM. Distributions of dissolved and leachable particulate Al off the tail of the Grand Banks, near the high-energy western boundary current, show elevated levels in the near-bottom waters. The authors suggest that resuspended sediments associated with nepheloid layers along the western boundary of the North Atlantic are a source of dissolved Al. Strong western boundary currents provide the energy to resuspend and maintain intense nepheloid layers of sediments. Continued resuspension and deposition of sediments within the nepheloid layer promotes the release of Al from sediments to the overlying water. The Al-rich terrigenous sediments that predominate along the deep boundary of the Denmark Strait, Labrador Sea, Newfoundland and off Nova Scotia constitute a potentially significant source of dissolved Al. Release of Al from resuspended sediments associated with nepheloid layers at a more northern location (e.g., Denmark Strait) may contribute to the near-linear increase in dissolved Al with depth observed in the deep northwest Atlantic.

  5. Clean Stuff: the Latest from NOVA's "Making Stuff" Mini-Series

    Broader source: Energy.gov [DOE]

    An Argonne National Laboratory scientist discusses transforming plastics say from grocery bags into carbon nanotubes and spheres, which can then be used in lithium-ion batteries, as well as an array of other applications.

  6. Quim. Nova, Vol. 31, No. 1, 164-171, 2008 NotaTcnica

    E-Print Network [OSTI]

    Ferreira, Márcia M. C.

    (ANVISA)10 e o Instituto Nacional de Metrologia, Normalização e Qualidade Instrumental (INMETRO)11

  7. II Congresso de e justia da UFPR Novas Tecnologias para o Direito e o Poder Judicirio

    E-Print Network [OSTI]

    Paraná, Universidade Federal do

    INTERNET PROFUNDA OU "DEEP WEB". Manuel Martin Pino Estrada O presente trabalho visa mostrar à comunidade mais fácil desviar dinheiro pela chamada "internet profunda" ou "deep web" e o melhor, sem ser

  8. Experimental study of beta-delayed proton decay of (23)Al for nucleosynthesis in novae

    E-Print Network [OSTI]

    Saastamoinen, A.; Trache, L.; Banu, A.; Bentley, M. A.; Davinson, T.; Hardy, John C.; Iacob, V. E.; McCleskey, M.; Roeder, B. T.; Simmons, E.; Tabacaru, G.; Tribble, Robert E.; Woods, P. J.; Aysto, J.

    2011-01-01T23:59:59.000Z

    The beta-delayed gamma and proton decay of (23)Al has been studied with an alternative detector setup at the focal plane of the momentum achromat recoil separator MARS at Texas AandM University. We could detect protons down to an energy of 200 ke...

  9. Tough Stuff: A Look Back at NOVA's "Making Stuff" Mini-Series

    Broader source: Energy.gov [DOE]

    Learn more about the Department's work with material science, including imitating the structure of mother of pearl to create the toughest ceramic ever produced and developing a new type of damage-tolerant metallic glass that's stronger and tougher than steel.

  10. BDOS: An open-ended, basic disk operating system for a Nova/Diablo system

    E-Print Network [OSTI]

    Koontz, Joseph Patrick

    1972-01-01T23:59:59.000Z

    4- Z O LJ 2 Vj 2 Z M X Z K CC CW 0 4J I- 4. Q 4 O H Vj LII Q W 2 ILC CI M i Z C N I- C 4l I4 0 ) O O I- 0 0 W V' CI O C ZQ I- W Vj CC cC 4J Z lfl I C W 2 P I- CY X C 4J I- CJ Na ~ 0 W 4I jN M O jo 3 4I W VJ Z I H I I... QO Z 2OCV 4I Y O jN Z H Z j EP cC 4J Vj CI CC c Q 0 ct I 4l Vj ) Q ct 3 Vl Q O O I- 4J ~ LL C 4J Vj WCCJ N Z 4J VIWr Q N Y o xa HWCCI O I-4J QC QN VJCC j M VJLV N H W Z IJ CC M W j jQ'0 jCNO I- ct cJ ") cC Vj Vj O cC W ~ ? I...

  11. Experimental study of beta-delayed proton decay of (23)Al for nucleosynthesis in novae

    E-Print Network [OSTI]

    Saastamoinen, A.; Trache, L.; Banu, A.; Bentley, M. A.; Davinson, T.; Hardy, John C.; Iacob, V. E.; McCleskey, M.; Roeder, B. T.; Simmons, E.; Tabacaru, G.; Tribble, Robert E.; Woods, P. J.; Aysto, J.

    2011-01-01T23:59:59.000Z

    The beta-delayed gamma and proton decay of (23)Al has been studied with an alternative detector setup at the focal plane of the momentum achromat recoil separator MARS at Texas AandM University. We could detect protons down to an energy of 200 ke...

  12. Triassic-Jurassic faunal and floral transition in the Fundy Basin, Nova

    E-Print Network [OSTI]

    Olsen, Paul E.

    outcrops, exposures, cores, and fossils that provide important new clues about the major features of polar ice (Frakes, 1979), this "hot house" world is marked by coal deposition in polar and equatorial through the Gulf of Mexico in the ~40 m.y. preceding the Jurassic opening of the central Atlantic Ocean

  13. Revista Biotemas, 19 (4), dezembro de 2006 Novas ocorrncias de corais azooxantelados no sul do Brasil

    E-Print Network [OSTI]

    Hanazaki, Natalia

    Brasil Captura incidental de tartarugas marinhas na pesca artesanal da Ilha de Santa Catarina, SC Marília ameaçadas de extinção. O sul do Brasil é caracterizado como área de alimentação e criaçãode pelo menos três

  14. Safety and efficacy of NovaSil clay as a dietary supplement to prevent aflatoxicosis

    E-Print Network [OSTI]

    Afriyie-Gyawu, Evans

    2006-04-12T23:59:59.000Z

    of aflatoxins. Although statistically significant changes to a few parameters were noted, the differences did not appear to be NSP- or dose-dependent, suggesting that NSP at dietary inclusion levels as great as 2.0% (w/w) does not produce overt toxicity. Thus...

  15. A THREE-DIMENSIONAL VIEW OF THE REMNANT OF NOVA PERSEI 1901 (GK Per)

    SciTech Connect (OSTI)

    Liimets, T.; Verro, K.; Kolka, I. [Tartu Observatory, 61602 Toravere (Estonia); Corradi, R. L. M.; Rodriguez-Gil, P. [Instituto de Astrofisica de Canarias, Via Lactea s/n, E-38205 La Laguna, Santa Cruz de Tenerife (Spain); Santander-Garcia, M. [Observatorio Astronomico Nacional, Ap. de Correos 112, E-28803 Alcala de Henares, Madrid (Spain); Villaver, E. [Departamento de Fisica Teorica, Universidad Autonoma de Madrid, E-28049 Madrid (Spain)

    2012-12-10T23:59:59.000Z

    We present a kinematical study of the optical ejecta of GK Per. It is based on proper-motion measurements of 282 knots from {approx}20 images spanning 25 years. Doppler shifts are also computed for 217 knots. The combination of proper motions and radial velocities allows a unique three-dimensional view of the ejecta to be obtained. The main results are as follows: (1) the outflow is a thick shell in which knots expand with a significant range of velocities, mostly between 600 and 1000 km s{sup -1}, (2) kinematical ages indicate that knots have suffered only a modest deceleration since their ejection a century ago, (3) no evidence for anisotropy in the expansion rate is found, (4) velocity vectors are generally aligned along the radial direction, but a symmetric pattern of non-radial velocities is also observed at specific directions, and (5) the total H{alpha}+[N II] flux has been linearly decreasing at a rate of 2.6% per year in the past decade. The eastern nebular side is fading at a slower rate than the western side. Some of the knots were displayed a rapid change of brightness during the 2004-2011 period. Over a longer timescale, a progressive circularization and homogenization of the nebula are taking place; (6) a kinematic distance of 400 {+-} 30 pc is determined. These results raise some problems with the previous interpretations of the evolution of GK Per. In particular, the idea of a strong interaction of the outflow with the surrounding medium in the southwest quadrant is not supported by our data.

  16. Nova Hedwigia 2013 Vol. 96 issue 34, 351365 published online January 22, 2013

    E-Print Network [OSTI]

    whether bryophyte herbarium specimens could be used for studies on the historical development of peat bog: epibryon, diatoms, peat bogs, sampling. Introduction The peat bogs in the Jizersk hory and in the Jeseniky1993 (Rybncek 2000), in order to monitor environmental changes. Although peat bog vegetation and environmental

  17. PROGENITORS AND BIRTH-RATES OF CATACLYSMIC VARIABLES AND TYPE-I SUPER-NOVAE

    E-Print Network [OSTI]

    TRIMBLE, V

    1982-01-01T23:59:59.000Z

    1981. (I2) G. Tammann, in Supernovae, edited by M. J. Rees4) J. C. Wheeler, Type I Supernovae (University of Texas,production of Type I supernovae from the ancestral systems,

  18. Series 50 propane-fueled Nova bus: Engine development, installation, and field trials

    SciTech Connect (OSTI)

    Smith, B.

    1999-01-01T23:59:59.000Z

    The report describes a project to develop the Detroit Diesel series 50 liquefied propane gas (LPG) heavy-duty engine and to conduct demonstrations of LPG-fuelled buses at selected sites (Halifax Regional Municipality and three sites in the United States). The project included five main elements: Engine development and certification, chassis re-engineering and engine installation, field demonstration, LPG fuel testing, and LPG fuel variability testing. Lessons learned with regard to engine design and other issues are discussed, and recommendations are made for further development and testing.

  19. Microsoft Word - FINAL NOvA EA Text 061108 _3_.doc

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE SWPAURTeC:8CO 2Dances done1QMay 24,570 FINAL

  20. Petra Nova Project Breaks Ground on World's Largest Post-Combustion

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial602 1,39732onMakeEducationRemediation »PeerBriefingsPeter J.Carbon

  1. Petra Nova Project Breaks Ground on World's Largest Post-Combustion

    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 onYouTube YouTube Note: Since the.pdfBreaking ofOilNEWResponse(Expired) |CERCLACompensationSafety,B. Lyons About

  2. Fermilab | Newsroom | Press Releases | October 6, 2014: NOvA Images

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb. 13, 2013Focus GroupDownreportcontestIllutration

  3. Fermilab | Newsroom | Press Releases | February 11, 2014: NOvA experiment

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental Assessments (EA)Budget » FYU.S. DOEFigureTipat Fermilabsees first

  4. Fermilab | Newsroom | Press Releases | March 28, 2013: NOvA neutrino

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental Assessments (EA)Budget » FYU.S.at Fermilab’s Familyin

  5. Usina Nova Uni o S A A car e lcool | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin BaxinUmwelt Management AGUser page Edit withUsinaUsina Mundial

  6. Economic Diversification in the North by Geoffrey Weller

    E-Print Network [OSTI]

    Northern British Columbia, University of

    use of the local natural resource within the region before shipping it out. Secondly, developing resource related employment such as tourism, including eco-tourism and indigenous peoples tourism. Thirdly

  7. How has grief tourism re-defined the social and judicial progress of the Madres de Plaza de Mayo?

    E-Print Network [OSTI]

    Tonner, Sarah Louise

    2008-10-10T23:59:59.000Z

    , assassination and murder. Having partially met their initial goal, the Madres have continued to focus their attention on other human rights work. Their new found enterprises are intertwined with increasing visitation to the Plaza de Mayo. They have used... about the Madres de Plaza de Mayo. Disappeared is a direct translation of the Spanish term desaparecidos, which refers to the 30,000 people who were kidnapped, tortured and murdered during the Argentine Dirty War. 4 1.2 Outline of Study...

  8. TO RECYCLE A PHRASE FROM THE TOURISM campaign of a few years ago, New Jersey, the phar-

    E-Print Network [OSTI]

    Bieber, Michael

    industry, engineers are not called on to design large distillation columns, but rather to develop smaller Pantano play a vital role in the design, scale-up and operation of facilities where drugs are developed engineering, Curtis Porcello, echoes this perspective. Porcello helps to design processes for manufacturing

  9. Development of prototype guidelines for risk management against terror attack in the tourism industry: a Delphi study

    E-Print Network [OSTI]

    Smith, Clifford Keith

    2007-09-17T23:59:59.000Z

    / Assessment, Background Checks, ID Badges/ Secure Entrance, Specialty Security Units, Architectural Design, Media Cooperation, and Technology Based strategies. Alongside the strategies are a collection of comments by the experts regarding strengths, weaknesses...

  10. Involvement as a market segmentation strategy: segmenting the United States pleasure travel market with implications for marketing Texas tourism

    E-Print Network [OSTI]

    Johnson, Bobby Joe

    1988-01-01T23:59:59.000Z

    market plan is a comprehensive understanding of the consumers most likely to purchase the product or service offered. This is done most effectively through market segmentation, which enables facility and agency managers to effectively allocate... in their travel decision making process appears to address many of the problems associated with existing strategies. The way in which consumers make their purchasing decisions, whether products or services, has been tied to various behavioral aspects...

  11. Life in the Living Laboratory: An Anthropological Investigation of Environmental Science, Tourism, and Design in the Contemporary Bahamas

    E-Print Network [OSTI]

    Moore, Amelia M.

    2010-01-01T23:59:59.000Z

    envisioned through sustainable designs for living. It can bethe living laboratory- biological, sustainable, ecologicalsustainable economic development- processes of human life and living,

  12. Impacts of Recreational and Commercial Fishing and Coastal Resource-Based Tourism on Regional and State Economies

    E-Print Network [OSTI]

    Jones, Lonnie L.; Tanyeri-Abur, Aysen

    conducted for each estuary to estimate direct and total economic impacts of the recreation-related and commercial fishing sectors. In the Texas Water Development Board definition of estuaries, some counties are included in more than one estuary. To avoid...

  13. Architectural Academic Tourism: Saudi Chronicles or Social Mobility for Women through Architectural Design and Education in Saudi Arabia

    E-Print Network [OSTI]

    Jann, Marga

    2014-07-21T23:59:59.000Z

    to learn, though for many (some brides and mothers from a very early age) the experience was more an opportunity to socialize outside the home. During the (ongoing) MERS epidemic, students who had been seriously ill with fever and cough refused to get... .g. mechanical respiration) would actually go to the hospital, and with antibiotics readily available over-the-counter, people self-treated for cough, fever and/or pneumonia. Typically no one stayed home to protect others from infection unless they were truly...

  14. FACTORS THAT INFLUENCE CIVIC PARTICIPATION IN ECONOMIC DEVELOPMENT PLANNING: TOURISM IN THE VILLAGE OF NORTH UTICA, ILLINOIS

    E-Print Network [OSTI]

    Spears, Chaya Riannon

    2011-04-26T23:59:59.000Z

    Participatory economic development planning has been proposed as a means to address problems associated with more traditional "top-down" planning methods. Purposeful solicitation of participation in development planning ...

  15. Selling the Alpine Frontier: The Development of Winter Resorts, Sports, and Tourism in Europe and America, 1865-1941

    E-Print Network [OSTI]

    Esson, Dylan Jim

    2011-01-01T23:59:59.000Z

    event. 138 Empire and Ice Rinks Despite the surprise thatover the operation of the ice rink and accompanying pavilionglide over a sprawling ice rink while others play curling or

  16. Life in the Living Laboratory: An Anthropological Investigation of Environmental Science, Tourism, and Design in the Contemporary Bahamas

    E-Print Network [OSTI]

    Moore, Amelia M.

    2010-01-01T23:59:59.000Z

    such as Talapia. In an aquaponics area, students learn howproject examples include aquaponics for sustainable food

  17. Between global flows & territorial control : the state, tourism development, and the politics of reterritorialization in the Middle East

    E-Print Network [OSTI]

    Hazbun, Waleed (Waleed Albert), 1968-

    2002-01-01T23:59:59.000Z

    This dissertation presents a new type of theory about the impact of increased transnational capital flows on state building processes. Most of the political science literature about globalization has been focused on debating ...

  18. Mapping myths of the medina : French colonial urbanism, Oriental brandscapes and the politics of tourism in Marrakesh

    E-Print Network [OSTI]

    Demerdash, Nancy Nabeel Aly

    2009-01-01T23:59:59.000Z

    Before the French Protectorate of Morocco was established in 1912, Marrakesh was both a major trading node in North Africa and one of the royal cities in Morocco. Yet as the number of colonists surged and the pieds noirs ...

  19. Selling the Alpine Frontier: The Development of Winter Resorts, Sports, and Tourism in Europe and America, 1865-1941

    E-Print Network [OSTI]

    Esson, Dylan Jim

    2011-01-01T23:59:59.000Z

    of Tennessee Press, 1983), 69-72; Green, Fit for America,of Vermont Press, 2009), 97-8. Green, Fit for America, 224-

  20. Selling the Alpine Frontier: The Development of Winter Resorts, Sports, and Tourism in Europe and America, 1865-1941

    E-Print Network [OSTI]

    Esson, Dylan Jim

    2011-01-01T23:59:59.000Z

    December 1891, Deutscher Eis-Sport noted that the ice inweather was poor. Deutscher Eis-Sport, Jg. 1, No. 7 (resort. In fact, Deutscher Eis-Sport began urging German

  1. Laurentian fan: morphology, sediments, processes, and growth pattern

    SciTech Connect (OSTI)

    Stow, D.A.V.

    1981-03-01T23:59:59.000Z

    Thick sediment accumulations in deep water provide a new target in the search for oil, and require an innovative approach to hydrocarbon exploration. The Laurentian fan is a large, deep-sea (2000 to 5000 m) fan in the western North Atlantic, and has been the major depocenter off Nova Scotia since at least the early Tertiary. The main development of the present depositional and erosional fan morphology in the past 2 to 3 m.y. was closely related to onshore glacial history. The slope above the fan has been the site of rapid sedimentation and consequent slumping. A network of tributaries on the upper fan appears to feed three main channel systens incised up to 800 m between broad asymmetric levees. These channels meander widely across the lower fan, then die out abruptly and pass into a lobate suprafan. Differences between the Laurentian fan and typical fan models result, in part, from the muddy nature of the sediment and the supply system. The channels contain thick, coarse gravels which probably grade distally into sandy lobes. Both should produce good reservoir bodies with suitable source and trapping mechanisms. Fine-grained sediments were more important in fan construction. Interbedded turbidites, contourites, and hemipelagites are present in the late Quaternary-Holocene sequence. The distribution of these sediments and, in particular, the recognition of structural sequences, textural trends, and fabric types in the fine-grained turbidites can be used to characterize particular parts of the fan environment. The development of this approach should prove useful in future hydrocarbon exploration.

  2. Speciation of chromium in feed coals and ash byproducts from Canadian power plants burning subbituminous and bituminous coals

    SciTech Connect (OSTI)

    Fariborz Goodarzi; Frank E. Huggins [Geological Survey of Canada-Calgary Division, Calgary, AB (Canada)

    2005-12-01T23:59:59.000Z

    The chromium species in the feed coals and ash byproducts from seven Canadian coal-fired power plants were examined using Cr X-ray absorption near-edge spectroscopy. Chromium in the Canadian feed coals is always found as Cr{sup 3+} but generally has a dual occurrence, as Cr{sup 3+} is distributed to varying degrees between the clay mineral illite and a poorly crystallized chromium oxyhydroxide phase associated with the organic fraction. In two subbituminous feed coals from Alberta, chromium is present largely as Cr{sup 3+}/illite, whereas in two other such coals, it is present predominantly as CrOOH. Chromium in a low-sulfur bituminous feed coal from Alberta is found mostly as Cr{sup 3+}/illite, whereas for feed coals from Nova Scotia with high sulfur contents, chromium is distributed between both Cr{sup 3+}/illite and CrOOH. Very little chromium was found in the limestone used in a fluidized-bed combustor. The chromium species in most bottom ash samples from all seven combustion units is predominantly, if not entirely, Cr{sup 3+} associated with aluminosilicate phases. Chromium speciation for subbituminous electrostatic precipitator fly ash is mostly Cr{sup 3+}, but in some cases, it is slightly lessand varies by sampling location at the plant. Chromium in fly ash from the combustion of bituminous feed coals is predominantlyCr{sup 3+}. A unique species of chromium found in one feed coal and an unrelated fly ash is metallic chromium, similar to that in stainless steel. The occurrence of this form of chromium in these materials indicates contamination from machinery, such as the coal milling machine or possibly wearing down of stainless steel parts by the coal or ash. The observation of this unexpected contamination demonstrates the power and usefulness of X-ray absorption fine-structure spectroscopy for speciation determination. 35 refs., 6 figs., 4 tabs.

  3. aqueous base developable: Topics by E-print Network

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

    24 25 Next Page Last Page Topic Index 41 Community-Based Associations for Sustainable Tourism Development. Open Access Theses and Dissertations Summary: ?? Community-Based Tourism...

  4. ant tribe camponotini: Topics by E-print Network

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

    including government tourism units, travel agencies, bus operators, local culture and tourism industry associations, as well as tribe B & B industry. 5. The tourists for tribe...

  5. additive competitive interaction: Topics by E-print Network

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

    within the framework of The Global Competitiveness and Benchmarking Network and the Industry Partnership Programme for Aviation, Travel & Tourism, with support Travel Tourism;...

  6. aboriginal siberians reveals: Topics by E-print Network

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

    government tourism units, travel agencies, bus operators, local culture and tourism industry associations, as well as tribe B & B industry. 5. The tourists for tribe service...

  7. act limited competition: Topics by E-print Network

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

    within the framework of The Global Competitiveness and Benchmarking Network and the Industry Partnership Programme for Aviation, Travel & Tourism, with support Travel Tourism;...

  8. arrestin competition influences: Topics by E-print Network

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

    within the framework of The Global Competitiveness and Benchmarking Network and the Industry Partnership Programme for Aviation, Travel & Tourism, with support Travel Tourism;...

  9. algerian sheep breeds: Topics by E-print Network

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

    Brad St; Clair; Sara Lipow 165 Interactions between tourism, breeding birds and climate change Geosciences Websites Summary: Interactions between tourism, breeding birds and...

  10. Quim. Nova, Vol. 29, No. 3, 555-562, 2006 *e-mail: ebmelo@unioeste.br

    E-Print Network [OSTI]

    Ferreira, Mrcia M. C.

    outros homens, e por um nvel de esco- laridade alto dos pacientes; 2 uma segunda fase, caracterizada

  11. Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 2011 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    equation for the pressure response with time and space. The results are compared with ECLIPSE. The pressure variation on pressure value which is due to the consideration of porosity alteration with time pressure response within the reservoir. Keywords: reservoir simulation, diffusivity equation, reservoir

  12. ASPES 2009, Volume 1, Issue 1 ISSN 1937-7991 Editor: Rafiq Islam, pp. 2008 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    systems are being installed to transport and distribute the gas for end users. These pipeline networks

  13. JCDNM 2009, Volume 1, Issue 2 ISSN 1937-7975 Editor: Rafiq Islam, pp. 2008 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    of long chains of carbon components and CH2 carbons were predominantly present ( 90 %). The line shape) showed a non-toxic shoe polish can be produced from beeswax. Corresponding author: E-mail: rafiqul is inherently non-toxic as opposed to paraffin wax that is inherently toxic, when long-term is considered

  14. Quim. Nova, Vol. 30, No. 2, 346-350, 2007 *e-mail: morgano@ital.sp.gov.br

    E-Print Network [OSTI]

    Ferreira, Mrcia M. C.

    PARCIAIS Marcelo A. Morgano* Centro de Qumica de Alimentos e Nutrio Aplicada, Instituto de Tecnologia de

  15. Novas ferramentas para analise do controle auton^omico Daniel Lucas Ferreira e Almeida (daniel.lucas@msn.com)

    E-Print Network [OSTI]

    Carvalho, João Luiz

    ´otimo do passo s ´e obtido com base no comprimento inicial das janelas (l0) (Tabela 1). Tabela 1: Espa do espa¸camento n~ao uniforme das amostras de f(x). Sinais e Pr´e-processamento Banco de dados da falsos positivos e negativos dos sinais analisados. Resultados e Discuss~ao Com base nos valores de 1 e 2

  16. Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 2011 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    process are presented in this paper. The modified Darcy law with incorporating fluid memory is used.mehossain@gmail.com #12;M. Enamul Hossain and M. Rafiqul Islam240 = gravitational acceleration, 2 = height

  17. JNSST (2010) ISSN: 1933-0324 Volume 4, Issue 2, pp. 73 90. 2010 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    2010-01-01T23:59:59.000Z

    matrix in the formation. Finally, the sustainability of waterjet technology is analyzed and it is shown that the waterjet technique is sustainable than conventional drilling techniques. * Corresponding author. E power is essentially equal to the power available at the surface. The energy loss is nominal which

  18. ASPES 2009, Volume 1, Issue 2 ISSN 1937-7991 Editor: Rafic Islam, pp. 2008 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    Dalhousie University 1360 Barrington Street, Halifax, NS B3J-2X4, Canada ABSTRACT Natural gas is transported. Another danger to human health lies in the flammability of natural gas transportation systems. A human Publishers, Inc. 127 HUMAN HEALTH RISKS ASSESSMENT DUE TO NATURAL GAS PIPELINES EXPLOSIONS M. Enamul Hossain

  19. ASPES (2010) ISSN: 1937-7991 Volume 2, Issue 1, pp. 35 46. 2010 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    and water due to the use of toxic drilling fluids. This paper introduces the waterjet drilling. SCALED MODEL EXPERIMENTS OF WATERJET DRILLING M. Enamul Hossain1 , Chefi Ketata2 and M. Rafiqul Islam2 1, B3J-1Z1, Canada ABSTRACT Drilling is a necessary step for petroleum exploration and production

  20. Regulative and voluntary instruments for responsible forest

    E-Print Network [OSTI]

    Pettenella, Davide

    protection, Landscape, Tourism, Biodiversity, Carbon sequestration, water supply, ... loc.reg. localregional

  1. Ice-rafted debris in the Southern Ocean : potential uses and limitations of ?Th-normalized fluxes

    E-Print Network [OSTI]

    Fujimori, Jessica E. (Jessica Eileen)

    2014-01-01T23:59:59.000Z

    We measured IRD fluxes from 22-5 ka BP in two sediment cores from the Scotia Sea using two different methods. The first, commonly used method, uses the linear sedimentation rate (LSR), dry bulk density, and weight percent ...

  2. On the Radiated Noise of the Autosub AUV

    E-Print Network [OSTI]

    Griffiths, Gwyn

    diagnostic worn bearings damaged propeller blades ... #12;Fisheries Research Vessel avoidance study;Radiated noise of Container Ship 1 #12;FRV Scotia: Noise reduction measures t The engine is diesel

  3. The impact of tourism, development, and religious change on the Highland Maya community of Santa Cruz La Laguna, Lake Atitlan, Guatemala

    E-Print Network [OSTI]

    Schaumann, Lisa Anne

    1993-01-01T23:59:59.000Z

    -Protestant minister, and Ramos, a local fisherman, though Domingo was also an informant on a variety of things including the proper use of a machete. Maria, the nurse, Santos, the mayor, and Ezekiel, the municipal secretary, were my informants on infrastructural...

  4. The impact of tourism, development, and religious change on the Highland Maya community of Santa Cruz La Laguna, Lake Atitlan, Guatemala

    E-Print Network [OSTI]

    Schaumann, Lisa Anne

    1993-01-01T23:59:59.000Z

    -Protestant minister, and Ramos, a local fisherman, though Domingo was also an informant on a variety of things including the proper use of a machete. Maria, the nurse, Santos, the mayor, and Ezekiel, the municipal secretary, were my informants on infrastructural...

  5. Protecting Environmentally-Sensitive Areas and Promoting Tourism in "The Back Patio of the United States:" Thoughts about Shared Responsibilities in Ecosystem and Biodiversity Protection

    E-Print Network [OSTI]

    Crawford, Colin

    2006-01-01T23:59:59.000Z

    1/3 of the island of Hispaniola, namely Haiti, nearly 90% ofonly on the island of Hispaniola, has been in existence for

  6. Nature-based tourism on private ranches in south Texas: a case study of management trade-offs associated with enterprise diversification on the Kenedy Ranch

    E-Print Network [OSTI]

    Trail, Tamara Swindle

    1997-01-01T23:59:59.000Z

    as to style and content by J. Richard Conner (Co-chair of Committee) . Thurow (Co-chair of Commit e) yne . Hamilton (Member) W. Stut (Member) Robert E. Whitson (Head of Department) May 1997 Major Subject: Rangeland Ecology and Management ABSTRACT.... Richard Conner and Dr. Amy Thurow for their support and for making this project possible. Dr. Jerry Stuth and Mr. Wayne Hamilton invested an extensive amount of time providing expert opinion and technical guidance throughout this research process. I...

  7. Using the Internet for your Internship or Job Search In the broad field of Natural Resource Recreation and Tourism, there are essentially three types of Web sites

    E-Print Network [OSTI]

    Using the Internet for your Internship or Job Search In the broad field of Natural Resource information: 1) actual job listing sites with announcements for internships and jobs in Interpretation (must be a registered CSU student) Job and Internship Listings in Parks, Outdoor Recreation

  8. Mercury Information Clearinghouse

    SciTech Connect (OSTI)

    Chad A. Wocken; Michael J. Holmes; Dennis L. Laudal; Debra F. Pflughoeft-Hassett; Greg F. Weber; Nicholas V. C. Ralston; Stanley J. Miller; Grant E. Dunham; Edwin S. Olson; Laura J. Raymond; John H. Pavlish; Everett A. Sondreal; Steven A. Benson

    2006-03-31T23:59:59.000Z

    The Canadian Electricity Association (CEA) identified a need and contracted the Energy & Environmental Research Center (EERC) to create and maintain an information clearinghouse on global research and development activities related to mercury emissions from coal-fired electric utilities. With the support of CEA, the Center for Air Toxic Metals{reg_sign} (CATM{reg_sign}) Affiliates, and the U.S. Department of Energy (DOE), the EERC developed comprehensive quarterly information updates that provide a detailed assessment of developments in the various areas of mercury monitoring, control, policy, and research. A total of eight topical reports were completed and are summarized and updated in this final CEA quarterly report. The original quarterly reports can be viewed at the CEA Web site (www.ceamercuryprogram.ca). In addition to a comprehensive update of previous mercury-related topics, a review of results from the CEA Mercury Program is provided. Members of Canada's coal-fired electricity generation sector (ATCO Power, EPCOR, Manitoba Hydro, New Brunswick Power, Nova Scotia Power Inc., Ontario Power Generation, SaskPower, and TransAlta) and CEA, have compiled an extensive database of information from stack-, coal-, and ash-sampling activities. Data from this effort are also available at the CEA Web site and have provided critical information for establishing and reviewing a mercury standard for Canada that is protective of environment and public health and is cost-effective. Specific goals outlined for the CEA mercury program included the following: (1) Improve emission inventories and develop management options through an intensive 2-year coal-, ash-, and stack-sampling program; (2) Promote effective stack testing through the development of guidance material and the support of on-site training on the Ontario Hydro method for employees, government representatives, and contractors on an as-needed basis; (3) Strengthen laboratory analytical capabilities through analysis and quality assurance programs; and (4) Create and maintain an information clearinghouse to ensure that all parties can keep informed on global mercury research and development activities.

  9. A study of algal biomass potential in selected Canadian regions.

    SciTech Connect (OSTI)

    Passell, Howard David; Roach, Jesse Dillon; Klise, Geoffrey T.

    2011-11-01T23:59:59.000Z

    A dynamic assessment model has been developed for evaluating the potential algal biomass and extracted biocrude productivity and costs, using nutrient and water resources available from waste streams in four regions of Canada (western British Columbia, Alberta oil fields, southern Ontario, and Nova Scotia). The purpose of this model is to help identify optimal locations in Canada for algae cultivation and biofuel production. The model uses spatially referenced data across the four regions for nitrogen and phosphorous loads in municipal wastewaters, and CO{sub 2} in exhaust streams from a variety of large industrial sources. Other data inputs include land cover, and solar insolation. Model users can develop estimates of resource potential by manipulating model assumptions in a graphic user interface, and updated results are viewed in real time. Resource potential by location can be viewed in terms of biomass production potential, potential CO{sub 2} fixed, biocrude production potential, and area required. The cost of producing algal biomass can be estimated using an approximation of the distance to move CO{sub 2} and water to the desired land parcel and an estimation of capital and operating costs for a theoretical open pond facility. Preliminary results suggest that in most cases, the CO{sub 2} resource is plentiful compared to other necessary nutrients (especially nitrogen), and that siting and prospects for successful large-scale algae cultivation efforts in Canada will be driven by availability of those other nutrients and the efficiency with which they can be used and re-used. Cost curves based on optimal possible siting of an open pond system are shown. The cost of energy for maintaining optimal growth temperatures is not considered in this effort, and additional research in this area, which has not been well studied at these latitudes, will be important in refining the costs of algal biomass production. The model will be used by NRC-IMB Canada to identify promising locations for both demonstration and pilot-scale algal cultivation projects, including the production potential of using wastewater, and potential land use considerations.

  10. NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form

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

    1012009 - 1182012 Philadelphia, PA NovaThermal Energy Waste Heat Geothermal Heat Pump System 1) Corporate matters associated with NovaThermal Energy's growth and...

  11. ICF program annual report, 1988--89

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    This report contains discussions on the following topics: Target Physics; Nova Experiments; Nova Laser Science and Technology; Target Science and Technology; Advanced Drivers; and ICF Applications.

  12. Nova Science Publishers, Inc. Hauppauge, New York ISSN 1933-0324 Journal of Nature Science and Sustainable Technology, Volume 2, Issue 3, 2007

    E-Print Network [OSTI]

    Hossain, M. Enamul

    . This process not only lowers the steam generation cost but also reduces the amount of air pollutants released environmental pollution. The temperature distribution is very important in thermal oil recovery. Increasing

  13. Gamma Ray Burst engine activity within the quark nova scenario: Prompt emission, X-ray Plateau, and sharp drop-off

    E-Print Network [OSTI]

    Jan Staff; Brian Niebergal; Rachid Ouyed

    2007-11-19T23:59:59.000Z

    We present a three-stage model for a long GRB inner engine to explain the prompt gamma ray emission, and interpret recent Swift satellite observations of early X-ray afterglow plateaus followed by a sharp drop off or a shallow power law decay. The three stages involves a neutron star phase, a quark star (QS) and a black hole phase as described in Staff et al. (2007). We find that the QS stage allows for more energy to be extracted from neutron star to QS conversion as well as from ensuing accretion onto the QS. The QS accretion phase naturally extends the engine activity and can account for both the prompt emission and irregular early X-ray afterglow activity. Following the accretion phase, the QS can spin-down by emission of a baryon-free outflow. The magnetar-like magnetic field strengths resulting from the NS to QS transition provide enough spin-down energy, for the correct amount of time, to account for the plateau in the X-ray afterglow. In our model, a sharp drop-off following the plateau occurs when the QS collapses to a BH during the spin-down, thus shutting-off the secondary outflow. We applied our model to GRB 070110 and GRB 060607A and found that we can consistently account for the energetics and duration during the prompt and plateau phases.

  14. In: Weeds: Management, Economic Impacts and Biology ISBN: 978-1-60741-010-2 Editor: Rudolph V. Kingely Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    and soil quality, recreational values, and wildlife habitat. Traditionally, weed management in natural because most weed management tools originated in agricultural systems where removal of the weed commonly of natural systems and the limitations of available management tools. To improve weed management in natural

  15. Workshop: Novas Abordagens para Monitorar a Queima de Biomassa (New Approaches to Monitor Biomass Burning) Coordenador: Emilio Chuvieco (University of Alcal, Spain)

    E-Print Network [OSTI]

    Burning) Coordenador: Emilio Chuvieco (University of Alcalá, Spain) As queimadas têm impactos globais e: the ESA Fire_cci Project Emilio Chuvieco (University of Alcalá, Spain) 10:00 Some Temporal Patterns

  16. A NOVA ESCOLA DE CHICAGO E AS MODALIDADES DE REGULAO: Tendncias do Law and Economics e aplicaes para o direito brasileiro

    E-Print Network [OSTI]

    Filho, Edgar Gaston Jacobs Flores

    2007-01-01T23:59:59.000Z

    sua aplicao no Brasil, em prol de uma sociedade melhor.6. B IBLIOGRAFIA BRASIL. Cdigo Civil. So Paulo: Saraiva,da Repblica Federativa do Brasil. Braslia: Senado,

  17. Comportamento espectro-temporal da cana-de-acar: uma nova proposta na distribuio espacial dos pontos de controle utilizados na interpolao de

    E-Print Network [OSTI]

    Hammerton, James

    Campos - SP, Brasil {pupin, bernardo, daniel}@dsr.inpe.br 2 Universidade Federal de Viçosa - UFV Campus Universitário ­ 36570-000 - Viçosa - MG, Brasil carlos.vieira@ufv.br Abstract. The major attribute of remotely do Brasil quanto nas questões ambientais internacionais relacionadas com a redução da emissão de

  18. 1. (P) M.I. Ojovan, W.E. Lee. New Developments in Glassy Nuclear Wasteforms. Nova Science Publishers, New York, 131p. (2007).

    E-Print Network [OSTI]

    Ojovan, Michael

    and Mantle Using Self-Descending, Radiation-Heated, Probes and Acoustic Emission Monitoring. Chapter 7 in. In: G.D. Roy, S.M. Frolov and A.M. Starik (eds.), Combustion and Atmospheric Pollution, Moscow, Torus

  19. In: Artificial Intelligence and Computer Science ISBN: 1-59454-411-5 Editor: Susan Shannon, pp. 123-134 2005 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Boman, Magnus

    -Sui Almberg1 Department of Computer and Systems Sciences, Stockholm Univ and the Royal Inst of Technology fair dissemination [4], and avoid the kind of herd behavior [13] evidenced by the power law used were selected from the Trust database (historical quotes from the Nordic stock markets adjusted

  20. A NOVA ESCOLA DE CHICAGO E AS MODALIDADES DE REGULAO: Tendncias do Law and Economics e aplicaes para o direito brasileiro

    E-Print Network [OSTI]

    Filho, Edgar Gaston Jacobs Flores

    2007-01-01T23:59:59.000Z

    dos cintos de segurana: O governo poderia querer aumentar ose da idia de que o governo, como uma fora exgena,recolhidos ou tratados pelo Governo e Administrao Pblica,

  1. A NOVA ESCOLA DE CHICAGO E AS MODALIDADES DE REGULAO: Tendncias do Law and Economics e aplicaes para o direito brasileiro

    E-Print Network [OSTI]

    Filho, Edgar Gaston Jacobs Flores

    2007-01-01T23:59:59.000Z

    base da Escola de Chicago na rea interdisciplinar entre sociologia e arquitetura. Utilizando- se de dados

  2. In: Forest Decline: Causes and Impacts ISBN 978-1-61470-002-9 Editor: Joshua A. Jenkins, pp. 2011 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Herrera, Carlos M.

    the response of several tree species from the Mediterranean Basin to recent climate change. We summarize, distribution shifts in Mediterranean mountains attribute the majority of observed changes to either climate-growth and regional climatic trends in four tree species from western Mediterranean Mountains: Silver fir (Abies alba

  3. In: Computer Physics Research Trends ISBN: 978-160021-595-7 Editor: Silvan J. Bianco, pp. 119-150 2007 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Yu, K.N.

    in the bare mode are described. The possibility to perform long-term measurements of radon progeny.e., enclosed in the so- called diffusion chambers. Here, the effects of radon progeny deposition onto the inner

  4. In: Nuclear Track Detectors: Design, Methods and Applications ISBN: 978-1-60876-826-4 Editor: Maksim Sidorov and Oleg Ivanov 2009 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Yu, K.N.

    OF RADON PROGENY CONCENTRATIONS WITH SOLID STATE NUCLEAR TRACK DETECTORS K.N. Yu and D. Nikezic Department of the concentrations of radon progeny, or the equilibrium factor F, are still being actively explored. A brief review of existing methods for long-term measurements of radon progeny concentrations or F with SSNTDs will first

  5. In: Journal of Characterization and Development of Novel Materials ISSN: 1937-7975 Volume 1, Issue 4, pp. 285 296 2010 Nova Science Publishers, Inc.

    E-Print Network [OSTI]

    Hossain, M. Enamul

    of toxic drilling fluids. This paper proposes an alternative method that is waterjet drilling WATERJET DRILLING M. Enamul Hossain1* , Chefi Ketata2 and M. Rafiqul Islam2 1 Department of Petroleum Conventional rotary drilling has been the main technique used for drilling in the oil and gas industry. However

  6. A forecasting model of tourist arrivals from major markets to Thailand

    E-Print Network [OSTI]

    Hao, Ching

    1998-01-01T23:59:59.000Z

    important to forecast tourism demand in the region and understand the factors affecting demand. Considering the national importance of tourism, Thailand was chosen as the destination country with nine major markets as the countries of origin. A model...

  7. MSU Extension Publication Archive Archive copy of publication, do not use for current recommendations. Up-to-date

    E-Print Network [OSTI]

    Alliance V.P. Tri-County Tourism Council Southwest Michigan Tourism Council weAL Convention & Visitors Bureau Chamber of Commerce County Commission MSU Cooperative Extension Service #12;Once you find where

  8. avenir pour le: Topics by E-print Network

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

    : France (2008)" 12;1 25 Boyer, Edmond 53 N d'ordre 1137 QUEL TOURISME POUR LE MAROC Physics Websites Summary: 1 Anne 2011 N d'ordre 1137 QUEL TOURISME POUR LE...

  9. Visual Representations of Puerto Rico in Destination Marketing Materials

    E-Print Network [OSTI]

    Davila Rodriguez, Mary Ann

    2012-10-19T23:59:59.000Z

    a visual qualitative approach, the study analyzed the images of recent promotional campaigns employed by the Puerto Rico Tourism Company. The study then interviewed Puerto Rican residents regarding their attitudes toward tourism development...

  10. Revised 09/06/2014 Graduate Handbook

    E-Print Network [OSTI]

    of Science Degree: Sustainable Tourism and Protected Area Management 11 Requirements for the Doctor of Philosophy Degree: Sustainable Tourism and Protected Area & Civic Engagement 8 Natural Resources & the Environment 8

  11. Changes in Human P opulation Structure: Implications for Biodiversity Conservatio n

    E-Print Network [OSTI]

    - ombia has suffered from migration, increased tourism, marijuana-related violence, and conflicts among by extensive waste and land erosion due to the rapidly growing local population and tourists (Thampy, 1996). Increased tourism, a growing demand for fish pro

  12. Biotic Homogenization Julian D Olden, University of Washington, Seattle, Washington, USA

    E-Print Network [OSTI]

    Olden, Julian D.

    to lacustrine eco-services, including crop irrigation, fishing, live- stock production and tourism. Furthermore, irrigation, and tourism. Even without oil spills, invasive species brought by ships could cause profound

  13. Will Nicaragua's Interoceanic Canal Result in an Environmental Catastrophe for Central America?

    E-Print Network [OSTI]

    Alvarez, Pedro J.

    to lacustrine eco-services, including crop irrigation, fishing, live- stock production and tourism. Furthermore, irrigation, and tourism. Even without oil spills, invasive species brought by ships could cause profound

  14. achieving environmental equity: Topics by E-print Network

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

    Tuvalu, Palau Auckland, University of 151 Investigating the Relationship between Wine Tourism and Proactive Environmental Energy Storage, Conversion and Utilization...

  15. Russir sa rorientation aprs une anne prparatoire

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    Jeanjean, Louis

    'Anglais DUT Mesures physiques BTS Tourisme Infirmier Educatrice spcialise PACES APEMR #12;s o m m a i r e

  16. Thursday 10 October 2013 MEETING OF THE PARLIAMENT

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    Haszeldine, Stuart

    ).......................................................................................23588 Alison Johnstone (Lothian) (Green]. The Minister for Energy, Enterprise and Tourism (Fergus Ewing)........................................................................................23601 Patrick Harvie (Glasgow) (Green) ..................................................

  17. SDSU General Catalog 2014-2015 407 OFFICE: Professional Studies and Fine Arts 436

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    Gallo, Linda C.

    management prepares students to work in tourism, recreation, cultural, natural resource, and sports settings, Hemmens, Lustig Offered by the L. Robert Payne School of Hospitality and Tourism Management Major management. Emphasis in recreation systems management. Emphasis in sustainable tourism management. Minor

  18. Communique #37 Springtime (Southern Hemisphere) 2010

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    for plant conservation, traditional knowledge, innovations & practices, inland water biodiversity, mountain biodiversity, agriculture diversity, biofuels & biodiversity, invasive alien species etc, Steve Noakes on Biodiversity and Tourism http://www.cbd.int/tourism/gdbooklet.shtml http://tourism.cbd.int/ This is a good tool

  19. MSU Extension Publication Archive Archive copy of publication, do not use for current recommendations. Up-to-date

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    information series no. 9 Cooperative Extension Sen/ice Michigan State University Extension Bulletin E-1938. Managing Tourism Information Systems Michigan State University Cooperative Extension Service Tourism was provided courtesy of the Michigan State University Library Scroll down to view the publication. #12;Tourism

  20. This information describes typical occupations and employment settings associated with this major. Understand that some of these options may require additional training. Moreover, you are not limited to these options when choosing a possible career path.

    E-Print Network [OSTI]

    Arnold, Jonathan

    students include tourism development, protected area management, environmental education (with schools to these options when choosing a possible career path. Description of Natural Resource Recreation and Tourism The Natural Resource Recreation and Tourism major prepares students to work in environmental settings (of

  1. 286 SDSU GRADUATE BULLETIN 2014-2015 OFFICE: Professional Studies and Fine Arts 436

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    Gallo, Linda C.

    Program The following materials should be mailed or delivered to: Hospitality and Tourism Management Management Mark R. Testa, Ph.D., Professor of Hospitality and Tourism Management Vinod Sasidharan, Ph.D., Associate Professor of Hospitality and Tourism Management Katherine A. Spilde, Ph.D., Associate Professor

  2. Universidade de Braslia Decanato de Ensino de Graduao

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    Lucero, Jorge Carlos

    seccional no Moodle: insero da Radiologia Oral nas novas diretrizes curriculares no curso de Odontologia 1

  3. Supporting Information For Calcium-dependent heme structure in the reduced forms of the bacterial

    E-Print Network [OSTI]

    Shelnutt, John A.

    Cincias e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal Nanomaterials Sciences

  4. Hamburg, September 2003 A European Aerosol Research Lidar Network

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    Centre on Insular Coastal Dynamics, University of Malta, La Valletta, Malta M. Zavrtanik Polytechnic Nova

  5. DELE 2014DELE 2014 EXAM CENTRES

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    Leclercq, Remi

    on a global scale... Study and work in Spain and Latin America... Become o cially accredited as pro cient SCOTIA Dalhousie University Department of Spanish and Latin American Studies Marion McCain Arts to be renewed. What is the DELE? e Diplomas in Spanish as a Foreign Language (DELE), granted by the Instituto

  6. Regulation of above-ground oil and waste containers. Hearing before the Subcommittee on Transportation, Tourism, and Hazardous Materials of the Committee on Energy and Commerce, House of Representatives, One Hundredth Congress, Second Session, January 26, 1988

    SciTech Connect (OSTI)

    Not Available

    1988-01-01T23:59:59.000Z

    Representatives from the petroleum industry, US EPA, National Bureau of Standards and Congress were among those testifying at a hearing to discuss one of the worst inland environmental disasters in this Nation's history. The January 2 collapse of the Ashland Oil Co.'s storage tank in Floreffe, Pennsylvania resulted in the release of some 4 million gallons of diesel fuel. Approximately a million gallons escaped the containment structures and spilled over into the Monongahela River. This spill has contaminated the drinking water sources for millions of people downstream, from Pittsburgh to Cincinnati to Louisville, and beyond. Attention is focused on the causes of this tank's collapse, the response measures taken by Ashland Oil, the Coast Guard, the EPA, and the need for tighter federal regulations of above-ground tanks used for the storage of petroleum and hazardous substances.

  7. Enclosures within Enclosures and Hurricane Reconstruction in Cancu?n, Mexico

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    Dominguez Rubio, Fernando; Cordoba Azcarate, Matilde; Baptista, Idalina

    Wilma. With each new business model, investors strategicallyto governance, business models, and forms of architecturetheir tourism business models after each hurricane. In

  8. axenic cultures statistical: Topics by E-print Network

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

    et Skills Development Canada Dveloppement des comptences Canada Culture,Tourism and the Centre for Education Statistics about this product or the wide range of...

  9. australian public festivals: Topics by E-print Network

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

    CERTIFICATE REQUIREMENTS Festival and Event Management (FEM) University of Minnesota Tourism Center and volunteer management a. Responsibilities b. Structure & organization c....

  10. agent-based model supported: Topics by E-print Network

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    Agent-Based Model to analyze the climate change impacts on the Andorra winter tourism CERN Preprints Summary: This study presents a georeferenced agent-based model to...

  11. angle multiple ham: Topics by E-print Network

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

    from Kamchatka CiteSeer Summary: Recreational fishing is an important component of the tourism industry and an important component of regional economies around the world. When...

  12. al procesamiento industrial: Topics by E-print Network

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    tourism and landscape quality. However, over the past 10 years, the Runion sugar industry has had to face the difficulties of available arable land decreasing because of...

  13. acceptable residual magnetic: Topics by E-print Network

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    between cultural acceptance in conjunction with social perception and cultural tourism promotion strategies. It provides a matrix to evaluate (more) Shih, I-Hsuan...

  14. agentes das grandes: Topics by E-print Network

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    2 Professor, Institute of Renewable Natural Resources, Recreation, Parks and Tourism Sciences, Texas A&M University; 3 Professor and Extension Specialist, Biological......

  15. autographic experiences cultural: Topics by E-print Network

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

    Natural Heritage Protection University of California eScholarship Repository Summary: tourism represents a model for bridging ex- isting culture-culture, conservation, sustaina-...

  16. agent-based market model: Topics by E-print Network

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

    Agent-Based Model to analyze the climate change impacts on the Andorra winter tourism CERN Preprints Summary: This study presents a georeferenced agent-based model to...

  17. agent-based model contrasts: Topics by E-print Network

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

    Agent-Based Model to analyze the climate change impacts on the Andorra winter tourism CERN Preprints Summary: This study presents a georeferenced agent-based model to...

  18. agent-based biological simulation: Topics by E-print Network

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

    Agent-Based Model to analyze the climate change impacts on the Andorra winter tourism CERN Preprints Summary: This study presents a georeferenced agent-based model to...

  19. advanced measurement equipment: Topics by E-print Network

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

    and graduate assistant positions with the Department of Recreation, Park and Tourism Sciences. This legacy of giving forever changed my life for the better. I commit to...

  20. avalanche photo diode: Topics by E-print Network

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    Fuqu Wu PhotoScope specifically to address challenges in the construction management industry, where large photo Tory, Melanie 310 Photo tourism: Exploring photo collections in 3D...